remove some gcc warnings

This prevents compiler's "redefinition of typedef" warnings or errors
when we could include flexint_shared.h twice, when building flex's own
scanner (scan.c) or in the "multiple_scanners" test in the testsuite.

(Depending on the compiler's flags this might or might not produce
errors, but it's good to guard it anyway.)

Fixes: #329

Signed-off-by: Kang-Che Sung <explorer09@gmail.com>

.gitignore

@@ -0,0 +1,25 @@
+*.orig
+*.rej
+*.sig
+*.tar.gz
+*.tar.lz
+*~
+.deps
+.libs
+ABOUT-NLS
+ChangeLog
+INSTALL
+Makefile
+Makefile.in
+aclocal.m4
+autom4te.cache
+autoscan.log
+build-aux/
+config.log
+config.status
+configure
+configure.scan
+flex-*/
+libtool
+m4/
+stamp-*

.indent.pro

@@ -0,0 +1,15 @@
+--blank-lines-after-declarations
+--blank-lines-after-procedures
+-br  /* open braces on same line */
+-nce /* start else on new line */
+-nbc /* vars on same line */
+-di8 /* line up var decl at col 8 */
+-brs /* struct brace on same line */
+-i8  /* indent 4  */
+-lp  /* line up parens */
+-ts8 /* tab stop */
+-bbo /* break before && || */
+-hnl /* honor newlines */
+--space-special-semicolon
+--line-length75
+--dont-break-procedure-type

.mailmap

@@ -0,0 +1,50 @@
+Aaron Stone <sodabrew@users.sourceforge.net>
+Akim Demaille <akim@lrde.epita.fr>
+Alastair Hughes <hobbitalastair@gmail.com>
+Alex Kennedy <alexzanderkennedy@gmail.com>
+Alexis La Goutte <alexis.lagoutte@gmail.com>
+Bastian Köcher <git@kchr.de>
+Christoph Junghans <ottxor@gentoo.org>
+Christos Zoulas <christos@zoulas.com>
+Cyril Brulebois <kibi@debian.org>
+Demi Obenour <demiobenour@gmail.com>
+Dennis Clarke <dclarke@blastwave.org>
+Egor Pugin <egor.pugin@gmail.com>
+Elias Pipping <pipping@users.sourceforge.net>
+Explorer09 <explorer09@gmail.com>
+Hans-Bernhard Broeker <HBBroeker@T-Online.de>
+Harald van Dijk <harald@gigawatt.nl>
+Hugh Sasse <hgs@dmu.ac.uk>
+Jaska Uimonen <jaska.uimonen@helsinki.fi>
+Jeff Smith <whydoubt@gmail.com>
+John Millaway <john43@users.sourceforge.net>
+Manoj Srivastava <srivasta@golden-gryphon.com>
+Mariusz Pluciński <mplucinski@mplucinski.com>
+Michael Haubenwallner <michael.haubenwallner@ssi-schaefer.com>
+Michael McConville <mmcconville@mykolab.com> <mmcco@mykolab.com>
+Michael Reed <m.reed@mykolab.com>
+Michael van Elst <mlelstv@NetBSD.org>
+Mightyjo <mightyjo@gmail.com>
+Mike Frysinger <vapier@gentoo.org>
+OBATA Akio <obache@NetBSD.org>
+Robert Larice <Robert.Larice@t-online.de> rlar <rlar>
+Robert Larice <Robert.Larice@t-online.de> Robert.Larice Robert Larice <Robert.Larice@t-online.de>
+Robert Minsk <rminsk@users.sourceforge.net>
+Samuel Thibault <samuel.thibault@ens-lyon.org>
+Sean McBride <sean@rogue-research.com>
+Serguey Parkhomovsky <sergueyparkhomovsky@gmail.com> <xindigo@gmail.com>
+Simon Sobisch <simonsobisch@web.de>
+Stefan Reinauer <stefan.reinauer@coreboot.org>
+Thomas Klausner <wiz@NetBSD.org>
+Till Varoquaux <till.varoquaux@gmail.com>
+Tobias Klauser <tklauser@distanz.ch>
+Todd C. Miller <Todd.Miller@courtesan.com>
+Translation Project <coordinator@translationproject.org> <coordinators@translationproject.org>
+Translation Project <coordinator@translationproject.org> <translation@translationproject.org>
+Vern Paxson <vern@ee.lbl.gov>
+Will Estes <westes575@gmail.com> <wlestes@users.sourceforge.net>
+Yuri <yuri@tsoft.com>
+luistung <dongliang1986@gmail.com>
+lukeallardyce <lukeallardyce@users.sourceforge.net>
+nomis52 <nomis52@users.sourceforge.net>
+viktor.shepel <shepelvictor@bigmir.net>

.prev-version

@@ -0,0 +1 @@
+2.6.4

.travis.yml

@@ -0,0 +1,24 @@
+language: c
+
+compiler:
+  - gcc
+
+addons:
+  apt:
+    sources:
+    - ubuntu-toolchain-r-test
+    packages:
+    - autoconf
+    - bison
+    - gcc-6
+    - help2man
+    - lzip
+    - texinfo
+    - texlive
+
+before_script:
+    - ./.travis/install-gettext.sh
+    - ./.travis/install-automake.sh
+    - export PATH=$HOME/bin:$PATH
+
+script: ./autogen.sh && ./configure && make && make check && make distcheck

.travis/install-automake.sh

@@ -0,0 +1,24 @@
+#!/bin/bash -ex
+
+wget -nv https://ftp.gnu.org/gnu/automake/automake-1.15.1.tar.gz
+
+# Verify tarball against hard-coded hashes. GPG signatures require an external
+# keyserver which might be offline, which is undesirable for build server use.
+# It's equally secure to just hard-code hashes, provided they're trusted (i.e.
+# you verify a hash against a GPG signature once).
+echo 'd3cd5fc9bbea9f977b51799180cde5d253dcba96 *automake-1.15.1.tar.gz'|
+    sha1sum -c || :
+printf '%s *automake-1.15.1.tar.gz\n' \
+f0d4717ebe2c76cec5d487de090f6e1c0f784b0d382fd964ffa846287e2a364a\
+52531a26ab98b7033ac04ed302a247b3b114299def54819a03439bfc962ff61b|
+    sha512sum -c || :
+
+tar xf automake-1.15.1.tar.gz
+cd automake-1.15.1
+# Don't flood Travis CI build log with dependency packages unless error occurs.
+./configure --quiet --prefix="$HOME" ||
+    { s=$? && cat config.log && (exit $s); }
+make -s V=0 >/dev/null 2>&1 || make -s V=1
+make -s install >make_install.log 2>&1 ||
+    { s=$? && cat make_install.log && (exit $s); }
+rm make_install.log || :

.travis/install-gettext.sh

@@ -0,0 +1,25 @@
+#!/bin/bash -ex
+
+wget -nv https://ftp.gnu.org/gnu/gettext/gettext-0.19.8.1.tar.lz
+
+# Verify tarball against hard-coded hashes. GPG signatures require an external
+# keyserver which might be offline, which is undesirable for build server use.
+# It's equally secure to just hard-code hashes, provided they're trusted (i.e.
+# you verify a hash against a GPG signature once).
+echo '404e072c455f79be4a2458863c19fb55a217771e *gettext-0.19.8.1.tar.lz'|
+    sha1sum -c || :
+printf '%s *gettext-0.19.8.1.tar.lz\n' \
+27c7a15be1ffd30a0182e264d0bf896850a295160872e1b1b9d1e9a15bc486cd\
+93465c131f948206fa0bbe2e3eacfc8489dd0cfc5ea5dcf05eff3829e27fc60f|
+    sha512sum -c || :
+
+tar xf gettext-0.19.8.1.tar.lz
+cd gettext-0.19.8.1
+# Don't flood Travis CI build log with dependency packages unless error occurs.
+# libacl is not used in this Travis build system.
+./configure --quiet --prefix="$HOME" --disable-acl ||
+    { s=$? && cat config.log && (exit $s); }
+make -s V=0 >/dev/null 2>&1 || make -s V=1
+make -s install >make_install.log 2>&1 ||
+    { s=$? && cat make_install.log && (exit $s); }
+rm make_install.log || :

AUTHORS

@@ -0,0 +1,16 @@
+
+In 2001, Will Estes took over as maintainer of flex.
+
+John Millaway is a co-author of the current version of flex. He has
+contributed a large number of new features, fixed a large number of
+outstanding bugs and has made significant contributions to the flex
+documentation.
+
+Aaron Stone has contributed several bug fixes to the flex codebase.
+
+Vern Paxson wrote flex with the help of many ideas and much
+inspiration from Van Jacobson.  Original version by Jef Poskanzer.
+
+The fast table representation is a partial implementation of a design
+done by Van Jacobson.  The implementation was done by Kevin Gong and
+Vern Paxson.

CODE_OF_CONDUCT.md

@@ -0,0 +1,5 @@
+# Contributor Code of Conduct
+
+This project adheres to No Code of Conduct.  We are all adults.  We accept anyone's contributions.  Nothing else matters.
+
+For more information please visit the [No Code of Conduct](https://github.com/domgetter/NCoC) homepage.

COPYING

@@ -0,0 +1,42 @@
+Flex carries the copyright used for BSD software, slightly modified
+because it originated at the Lawrence Berkeley (not Livermore!) Laboratory,
+which operates under a contract with the Department of Energy:
+
+Copyright (c) 2001, 2002, 2003, 2004, 2005, 2006, 2007 The Flex Project.
+
+Copyright (c) 1990, 1997 The Regents of the University of California.
+All rights reserved.
+
+This code is derived from software contributed to Berkeley by
+Vern Paxson.
+
+The United States Government has rights in this work pursuant
+to contract no. DE-AC03-76SF00098 between the United States
+Department of Energy and the University of California.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions
+are met:
+
+1. Redistributions of source code must retain the above copyright
+   notice, this list of conditions and the following disclaimer.
+2. Redistributions in binary form must reproduce the above copyright
+   notice, this list of conditions and the following disclaimer in the
+   documentation and/or other materials provided with the distribution.
+
+Neither the name of the University nor the names of its contributors
+may be used to endorse or promote products derived from this software
+without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
+IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
+WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+PURPOSE.
+
+This basically says "do whatever you please with this software except
+remove this notice or take advantage of the University's (or the flex
+authors') name".
+
+Note that the "flex.skl" scanner skeleton carries no copyright notice.
+You are free to do whatever you please with scanners generated using flex;
+for them, you are not even bound by the above copyright.

Makefile.am

@@ -0,0 +1,93 @@
+# This file is part of flex.
+
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in the
+#    documentation and/or other materials provided with the distribution.
+
+# Neither the name of the University nor the names of its contributors
+# may be used to endorse or promote products derived from this software
+# without specific prior written permission.
+
+# THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
+# IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
+# WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+# PURPOSE.
+
+# Notes on building:
+
+# Possible values for DEFS:
+#
+# By default, flex generates 8-bit scanners when using table compression,
+# and 7-bit scanners when using uncompressed tables (-f or -F options).
+# For flex to always generate 8-bit scanners, add "-DDEFAULT_CSIZE=256"
+# to DEFS.
+
+ACLOCAL_AMFLAGS = -I m4
+
+dist_doc_DATA = \
+	AUTHORS \
+	COPYING \
+	NEWS \
+	ONEWS \
+	README.md
+
+EXTRA_DIST = \
+	.indent.pro
+
+dist_noinst_SCRIPTS = \
+	autogen.sh \
+	po/update_linguas.sh
+
+SUBDIRS = \
+	src \
+	doc \
+	examples \
+	po \
+	tests \
+	tools
+
+# Convenience targets to build libfl only
+# These are actually wrappers around automake- and libtool-generated targets
+
+libfl:
+	cd src && $(MAKE) $(AM_MAKEFLAGS) libfl.la libfl.pc
+
+install-libfl:
+	cd src && \
+	$(MAKE) $(AM_MAKEFLAGS) lib_LTLIBRARIES=libfl.la \
+	pkgconfig_DATA=libfl.pc install-libLTLIBRARIES install-pkgconfigDATA
+
+uninstall-libfl:
+	cd src && \
+	$(MAKE) $(AM_MAKEFLAGS) \
+	lib_LTLIBRARIES=libfl.la pkgconfig_DATA=libfl.pc \
+	uninstall-libLTLIBRARIES uninstall-pkgconfigDATA
+
+# libfl.pc is cleaned via 'distclean' target
+clean-libfl:
+	cd src && \
+	$(MAKE) $(AM_MAKEFLAGS) lib_LTLIBRARIES=libfl.la clean-libLTLIBRARIES \
+	clean-libtool
+
+# Create the ChangeLog, but only if we're inside a git working directory
+
+ChangeLog: $(srcdir)/tools/git2cl
+	if [ -d $(srcdir)/.git ] ; then \
+		$(srcdir)/tools/git2cl > $@ \
+	; fi
+
+indent:
+	cd src && $(MAKE) $(AM_MAKEFLAGS) indent
+
+install-exec-hook:
+	cd $(DESTDIR)$(bindir) && \
+		$(LN_S) -f flex$(EXEEXT) flex++$(EXEEXT)
+
+.PHONY: libfl install-libfl uninstall-libfl clean-libfl \
+	ChangeLog indent

NEWS

@@ -0,0 +1,800 @@
+flex NEWS
+
+* Noteworthy changes in release  ?.? (????-??-??) [?]
+
+** build
+
+*** Flex now includes its own <config.h> header before including
+    system headers so that any system specific features detected by
+    configure are taken into account during compilation of flex
+    itself.
+
+*** The flex build system now includes Makefile targets at the top
+    level to allow just building and installing libfl.
+
+*** The flex distribution now includes a file, src/libfl.pc, to allow
+    using pkgconfig to find out what flags to use when building
+    against libfl from flex.
+
+*** Various edge cases, mostly involving out-of-tree builds have been
+    accounted for in the autotools build system.
+
+*** A crash during building on NetBSD has been fixed.
+
+*** Flex is now automatically built by travis-ci. That should increase
+    the visibility of bugs and help prevent regressions.
+
+** documentation
+
+*** new bg, pt, uk translations from the translation project
+
+** scanner
+
+*** Some memory leaks have been fixed.
+
+*** A long standing bug that effected expressions of the form c{i,j}
+    where 'c' is a character and {i,j} describes the number of times
+    to match against 'c' when case sensitivity was turned on has been
+    fixed.
+
+*** New option: --backup-file allows setting the name of the file
+    written containing backing up information. Useful if you need
+    backing up information from multiple scanners in the same
+    directory.
+
+*** flex emits correct line number directives when line numbers refer
+    to the file containing the line number directives.
+
+*** The options {no,}yy{get,set}_column are now supported.
+
+** test
+
+*** Generating the various tableoptions make rules is now more portable.
+
+*** Tests of the options -C*f and -C*F will now run correctly on
+    filesystems that are not case sensitive.
+
+* Noteworthy changes in release 2.6.4 (2017-05-06) [stable]
+
+** build
+
+*** The indent target now knows about flex's new (as of 2.6.0)
+    layout. The indent rules it would apply are not correct and do
+    need to be fixed.
+
+*** The files included in the flex distribution are now built by the
+    version of flex that is included in the distribution.
+
+*** The configure script has a better idea of which headers are
+    required to build flex. It will also error when missing functions
+    are detected.
+
+*** We have lowered the versions of automake and gettext that
+    configure.ac lists as required for building flex. In autogen.sh,
+    we now check for how to call libtoolize and use what we find in
+    the rest of the script.
+
+*** Since files in lib/ are picked up as needed by src/, we no longer
+    generate a Makefile for that directory.
+
+*** Flex can be cross compiled.
+
+** documentation
+
+*** Some typos were removed from the manual.
+
+** scanner
+
+*** Some minor performance enhancements.
+
+*** We honor user defined yy_* macros again. We are also more careful
+    to not leak macro definitions into header files.
+
+*** A number of portability fixes were introduced so building flex is
+    more reliable on more platforms. Additionally, outdated function
+    calls were removed.
+
+*** When building the flex executable itself, %# comments from
+    flex.skl are removed when generating the C source code array. This
+    reduces the size of flex.
+
+** test suite
+
+*** All scripts in the test suite are now run by $(SHELL) and the
+    needed portability fixes have been included.
+
+*** Test suite dependencies are handled much better. This only matters
+    if you are actively developing flex or its test suite.
+
+*** Tests that depend on platform dependent features now properly skip
+    when those platforms are not present.
+
+*** When running "make check", you can now pas V=0 to silence more of
+    the build. This is useful when you're less connncerned about the
+    details of building and linking the test programs themselves.
+
+* Noteworthy changes in release 2.6.3 (2016-12-30) [stable]
+
+** scanner
+
+*** several bug fixes resolved problems introduced in recent flex
+    versions regarding processing of comments, literals and various
+    quoting scenarios.
+
+*** If the path to m4 was sufficiently long, a buffer overflow could
+    occur. This has been resolved. The fix also removes dependence on
+    the constant PATH_MAX.
+
+** build
+
+*** A new configure option --disable-bootstrap changes the behavior of
+    the build system when building flex. The default
+    "--enable-bootstrap" behavior is to build flex, then to use that
+    flex to build flex again. With --disable-bootstrap, the scanner is
+    simply built by sedding the scanner source. This is friendlier to
+    cross compilation.
+
+*** The compatibility functions in lib/ are no longer built as a
+    library. Instead, they are built as $(LIBOBJ) objects. This is
+    simpler and friendlier to cross compilation.
+
+*** It is now possible to build flex without building the accompanying
+    libfl. This is friendlier to cross compilation. See the
+    --disable-libfl option to configure. Resolves #99.
+
+*** the PIC version of libfl was not correctly built. It is no longer
+    included in the build/installation targets of flex since it was
+    unused.
+
+*** the distributed man page is only rebuilt when the relevant source
+    files change or when the binary doesn't exist. In particular, this
+    is friendlier to cross compilation. Resolves #108
+
+** test
+
+*** the shell scripts in the test suite are more portable across different shell implementations.
+
+* version 2.6.2 released 2016-10-24
+
+** flex internals
+
+*** a segfalt involving yyrestart(NULL) has been fixed
+
+*** flex should now handle quoting when mixed with m4 processing correctly
+
+*** flex handles `[[' and `]]' correctly
+
+*** flex no longer generates non-ANSI code
+
+*** more compilation warnings were squashed in generated scanners
+
+*** prevented a buffer overflow that could occur when input buffers were the exact wrong size
+
+** test suite
+
+*** input filenames on MSWindows are now calculated correctly
+
+*** general code cleanups in a number of tests now make the test suite compile much more cleanly
+
+** build system
+
+*** the xz archive has been replaced with an lzip archive
+
+*** a new option to configure --enable-warnings to encapsulate passing
+    of warning-related flags which is useful in testing flex
+
+*** make indent now works for out of source builds
+
+*** Portability warnings when generating Makefile.in files are now suppressed; they were just noise and the use of GNU extensions in Makefile.{am,in,} was intentional and well known.
+
+** bugs
+
+*** resolved gh#67
+
+** new sv translation from the translation project
+
+* version 2.6.1 released 2016-03-01
+
+** flex resources
+
+*** The flex project is now hosted at github. Consider this a "period of transition". In particular, you should start at https://github.com/westes/flex for the flex codebase, issue tracking and pull requests.
+
+*** New releases of flex are to be found at https://github.com/westes/flex/releases.
+
+** flex internals
+
+*** Flex now uses more modern and more standard names for variable types. There's more work to be done on that front yet, though.
+
+*** A number of compiler warnings have been remedied.
+
+*** Line directives should now  work as expected and be absent when that is expected.
+
+** test suite
+
+*** When running the test suite, c++ files are compiled with the c++ header inside the flex distribution, rather than relying on the build system's flex header , which might not be installed yet or which might be out of date with respect to what flex tests expect.
+
+*** Some portability fixes in the test suite such as opening files for reading in binary mode
+
+** Building flex
+
+*** The file src/scan.c asdistributed  with flex source is now built with the current version of flex. Occasionally this had to be done manually to pick up new flex features. It's now just a part of flex's build system.
+
+*** The pdf version of the manual is no longer distributed with flex, although if you have the texinfo package installed, you can still build it.
+
+*** lots of general build system cleanup
+
+*** the build system tries a bit harder to find libtoolize and texi2dvi.
+
+*** When help2man and texi2dvi are missing, the error messages are now much more helpful.
+
+** bug fixes
+
+*** resolved github issues #53, #54, #55, #61.
+
+*** Resolved sf bugs #128, #129, #155, #160, #184, #187, #195.
+
+* version 2.6.0 released 2015-11-17
+
+** User Visible Changes
+
+*** C++ scanners now use references instead of pointers. See the manual for details.
+
+*** A number of compiler warnings were addressed, so flex generated scanners should be quieter under compiler warning scenarios.
+
+*** Allow error reporting routines to accept varying number of arguments
+
+*** Removed deprecated 'register' storage class specifier
+
+*** Changeed output formats from octal to hexadecimal
+
+*** check limits before using array index cclp; resolves sf-166
+
+*** Suppress clang warning about empty @param paragraph; resolves sf#158
+
+*** Fixed malloc/realloc replacement, resolves sf bug#151.
+
+*** Adjusted buffer sizes on ia64.
+
+*** various documentation and code clean up fixes: resolves sf bugs #167, #168, among other patches.
+
+** Flex Internals
+
+*** flex is now organized into subdirectories. This keeps the tree neater at the top level and puts like things near each other and unlike things away from each other.
+
+*** The test suite has been reorganized and is now run with the parallel test suite harness from automake.
+
+*** Cleaned up the automake parts of the build system to better reflect what automake does on its own. Also added a call to libtoolize in autogen.sh because autoreconf gets confused without a prior run of libtoolize.
+
+*** po/Makefile now includes a rule to fetch the latest translations from the translation project. "make -f po/Makefile getpo" from the top level of the flex tree will fetch the files.
+
+*** New da translation from the translation project
+
+* flex version  2.5.39 released 2014-03-26
+
+** no user visible changes in this release
+
+* version 2.5.38 released 2014-02-14
+
+** internationalization
+
+*** add sr translation from the translation project
+
+*** update da, es, ko, nl, pt_BR, ro, ru, sv, tr, vi, zh_CN translations from the translation project
+
+*** rename zh_tw to its proper zh_TW name
+
+* version 2.5.37 released 2012-08-03
+
+** Import flex into git. See
+   git://flex.git.sourceforge.net/gitroot/flex/flex.
+
+** Fix make install target to not fail when the flex++ program is
+   already installed
+
+** New translations from the translation project: de, fi, pl, vi
+
+* version 2.5.36 released 2012-07-20
+
+** various portability fixes that quiet compiler warnings on 64-bit
+   hosts
+
+** various manual fixes, including correcting the name of a %option and
+   updating some simple examples to use ANSI C syntax
+
+** various bug fixes that prevent certain error conditions from
+   persisting when they should not persist
+
+** improvements to the test suite so it behaves better when linking
+   compiled files
+
+** new translations from the translation project: ca, da, es, fi, fr,
+   ga, ko, pt_br, ro, ru, sv, tr, zh_cn
+
+** the flex distribution is now built with automake 1.10.1 and automake
+   2.61
+
+* version 2.5.35 released 2008-02-26
+
+** fixed bug that prevented flex from accepting certain comments in the
+  scanner file (resolves bugs #1849809 and #1849805)
+
+** fix bug that prevented headers for all functions from being generated
+  (resolves bug #1628314)
+
+** change yy_size_t to be size_t (resolves bug #1849812)
+
+** new de, nl, pl, pt_br, vi translations from the translation project
+
+* version 2.5.34 released 2007-12-12
+
+** introduce yylex_init_extra; see the manual for details
+
+** introduce %option extra-type="your_type *" (resolves bug #1744505)
+
+** The flex program now parses multiple short concatenated options (resolves bug
+  #1619820). Thanks to Petr Machata of Red Hat on this issue.
+
+** better checking after yyalloc/yyrealloc (resolves bug #1595967)
+
+** flex now provides for a libfl_pic.a compiled with position
+   independent code. Particularly useful when including a flex scanner
+   in a shared library and with more recent versions of gcc. Thanks to the Debian project for the idea.
+
+** SourceForge feature request #1658379: Expose YY_BUF_SIZE in the
+	header file.
+
+** flex better escapes filenames with special characters in them
+   (resolves bug #1623600)
+
+** a memory leak was plugged(resolves bug #1601111)
+
+** pattern language expanded; see the manual for details on the below
+   highlights
+
+*** pattern options added to specify patterns as case-insensitive or
+    case-sensitive
+
+*** pattern options to specify whether the "." character should match
+    the newline character
+
+*** pattern options added to allow ignoring of whitespace in patterns
+
+*** POSIX character classes may be negated in patterns
+
+*** patterns may now use set difference, union operators
+
+** the manual now contains an appendix listing various common patterns
+   which may be useful when writing scanners
+
+** some memory leaks were removed from the C++ scanner (but the C++
+  scanner is still experimental and may change radically without
+  notice)
+
+** c++ scanners can now use yywrap
+
+** added new unit test for c++ and yywrap
+
+** portability fixes to some unit tests
+
+** flex man page and flex manual in pdf now distributed in the flex
+distribution
+
+** new ca, vi, ga, nl translations from the translation project
+
+** flex no longer comes with an rpm spec file
+
+** flex development now happens with automake 1.9.6
+
+* version 2.5.33 released 2006-2-20
+
+** all flex resources are now to be found from the website at
+   http://flex.sourceforge.net/
+
+** there was no release 2.5.32 published
+
+** numerous bug and security fixes
+
+** new nl, vi, sv, ro, po, ga, ca, fr, tr translations from the translation project
+
+** upgrade to use gettext 0.12 (this now makes the "pdf" and "ps"
+   targets in the build system able to be run successfully)
+
+* version 2.5.31 released 2003-4-1
+
+** remove --enable-maintainer-mode configure option; none of the
+   Makefiles were using it and it can be unduely confusing
+
+* version 2.5.30 released 2003-4-1
+
+** yylineno is per-buffer in reentrant scanners
+
+** added %top directive for placing code at the top of the generated
+   scanner; see manual for details
+
+** flex now uses m4 to generate scanners; while this means that
+   scanners are more readable, it means that flex requires m4 to be
+   installed; see manual for details
+
+* version 2.5.29 released 2003-3-5
+
+** Automatic stack management for multiple input buffers in C and C++ scanners
+
+** moved the flex documentation to a new doc/ subdirectory
+
+** cleanups to the yy namespace
+
+* version 2.5.28 released 2003-2-12
+
+** flex is now hosted at sourceforge
+
+** Fixed trailing slash bug in YY_INPUT macro def
+
+** Flex now warns if always-interactive is specified with fast or full
+
+* version 2.5.27 released 2003-1-21
+
+** flex now works with recent bison versions
+
+** new pt_br translation from the translation project
+
+* version 2.5.26 released 2003-1-14
+
+** Fixed table deserialization bug on big-endian archs. Patch sent from Bryce Nichols <bryce@bnichols.org>
+
+** yyleng has proper declarations now; this caused flex to generate
+   unusable scanners for some programs
+
+** the flex distribution now includes a spec file suitable for use
+   with rpm
+
+** some more c++ fixes
+
+** new es translation from the translation project
+
+** slight tweeks to the flex_int*_t types
+
+** flex now warns about pattern ranges that might be ambiguous when
+   generating a case-insensitive scanner
+
+
+* version 2.5.25 released 2002-12-2
+
+** flex now uses flex_int*_t types. For C99 systems, they are just the
+   int*_t types; for non-C99 systems, we just make some typedefs
+
+** new pt_br translation from the translation project
+
+* version 2.5.24 released 2002-11-25
+
+* more portability fixes
+
+** the manual continues to be updated and edited, but it's still got a
+   ways to go
+
+** it is possible to have multiple c++ scanners in the same program again
+
+** new turkish translation from the translation project
+
+* version 2.5.23 released 2002-10-21
+
+** more portability fixes
+
+** the manual includes a title page and a table-of-contents when printed
+
+** the test suite can be run with "make check" from the top-level
+   directory
+
+** configure now accepts the --enable-maintainer-mode option
+
+** gettext functionality is now only available externally
+
+** the constant FLEX_BETA is defined if flex is a beta release
+
+** the script create-test was not included in the distribution and it
+   should have been
+
+* version 2.5.22 released 2002-10-10
+
+** more portability fixes around how we get ahold of the integral
+   types; there is a constant FLEX_NEED_INTEGRAL_TYPE_DEFINITIONS
+   which you should define if you don't have the <inttypes.h> header
+   file (after you complain to your C vendor for not providing a
+   reasonable C environment)
+
+** more test suite cleanups; in particular, the test suite should run
+   correctly when build from a different directory
+
+** upgraded automake to 1.7 and consequently autoconf to 2.54; this
+   means, among other things, that there is some support for
+formatting the manual in postscript and pdf in the distributed
+   Makefile.in (and therefore in the Makefile built by configure)
+
+** the flex.1 manpage is generated by help2man; (this has been true
+   for quite a while but was not listed here)
+
+** flex now includes three defined constants to indicate which version
+  of flex generated a scanner (YY_FLEX_{MAJOR,MINOR,SUBMINOR}_VERSION)
+
+** flex tries its best to output only the relevant portions of the
+   skeleton when generating a scanner, thus avoiding as much
+   conditional compilation as possible
+
+* version 2.5.21 released 2002-9-17
+
+** one of the tests in the test suite broke the dist target
+
+* version 2.5.20 released 2002-9-16
+
+** A flex scanner has the ability to save the DFA tables to a file,
+   and load them at runtime when needed; see the manual for details
+
+** Added %option bison-bridge (--bison-bridge)
+
+** Removed %option reentrant-bison/--reentrant-bison/-Rb
+
+** yylineno is present in all scanners; Modified nasty performance
+   penalty warning with yylineno in documentation
+
+** test-table-opts is now run last in the test suite because it's so fat
+
+** flex can, to some extent, diagnose where internal problems occur
+
+** new translations from the translation project: fr, ca, de, ru, sv
+
+**Flex generates C99 defs now; see YY_TRADITIONAL_FUNC_DEFS in the
+  manual if that's not a good thing for you
+
+* version 2.5.19 released 2002-9-5
+
+** prevent segfault on input lines which are longer than the allocated
+   space (problem report from Manoj Srivastava
+   <srivasta@golden-gryphon.com>)
+
+** Changed option 'header' to 'header-file'
+
+* version 2.5.18 released 2002-9-4
+
+** portability fixes for integer constants and in the way the test
+   suite reports its results
+
+** the test for bison was reporting bison missing when it was, in
+   fact, found
+
+** if we don't find GNU indent, we're more careful when we're not
+   finding it
+
+* version 2.5.17 released 2002-8-29
+
+** more portability fixes
+
+** updated config.sub and config.guess
+
+** flex is indented by GNU indent (this was done earlier but not
+   explicitly documented)
+
+* version 2.5.16 released 2002-8-28
+
+** c++ scanners compile again
+
+** there is now an indent target in the top-level Makefile; configure
+   checks for GNU indent which is required for proper operation of the
+   indent target
+
+** some more portability fixes were made
+
+** %options and invocation sections of manual merged
+
+** a c++ test was added to the test suite
+
+** we're trying to clean up more files in the test suite's make clean
+   targets
+
+* version 2.5.15 released 2002-8-21
+
+** reject-state buffer is now dynamically allocated and REJECT buffer
+   variables are reentrant-safe
+
+** manual now discusses memory usage
+
+** skeleton now processed by m4 before mkskel.sh; (this only matters
+   if you want to change the skeleton or if you're doing flex development)
+
+** zh_cn translation added from translation project
+
+** a bug that caused a segfault has now been fixed
+
+** the test suite now respects the usual CFLAGS, etc. variables
+
+** removed some warnings which some tests trigggered with the -s option
+
+** the flex-generated header file now tries to be smarter about
+   conditionally including start conditions
+
+** tables code omitted from generated scanner when not used
+
+* version 2.5.14 released 2002-8-15
+
+** the tests using the reentrant c scanner as c++ were reworked
+   slightly to be sure that the c++ was enforced
+
+** de translation now included in the distribution
+
+** various portability fixes regarding nls support, c++ include
+   headers, etc.
+
+* version 2.5.13 released 2002-8-15
+
+** the header file output with %option header is now much smaller
+
+** Fixed type mismatch in printf in scanner skeleton
+
+** yylex_init now reports errors
+
+* version 2.5.12 released 2002-8-8
+
+** updated gettext support to 0.11.5
+
+** new fr translation from the translation project
+
+** bison is no longer needed to build flex; If you are building flex
+   from a release (i.e., not from a cvs snapshot), then you don't need
+   to have a pre-built lex around either (unless you modify scan.l, of
+   course); (This has been true for some time, but was not mentioned
+   here.)
+
+* version 2.5.11 released 2002-7-31
+
+** Fixed bug where yyless did not consider yylineno
+
+** the yylineno performance hit is now gone
+
+** fixed some typos in the manual and we now include texinfo.tex in
+   the distribution
+
+** traditional prototypes output for C scanners, controlled by a
+   preprocessor symbol; see documentation for details
+
+* version 2.5.10 released 2002-7-24
+
+** yy_globals renamed to yyscanner and yy_globals_t renamed to
+   yy_guts_t
+
+** added dist-bzip2 option to Makefile.am so we now produce a bzip2'd
+   archive in addition to the standard gzip archive
+
+*  version 2.5.9
+
+** new tests in test suite: test-mem-{nr,r}, test-posix,
+   test-posixly-correct, test-debug-{nr,r}
+
+** made changes to work with gcc-3.2 development code
+
+** ability to choose which memory functions are used in flex
+
+** new yylex_destroy() function for the non-reentrant scanner
+
+** new handling of POSIXLY_CORRECT environment variable
+
+** the test suite now has its copyrights explicitly described
+
+** new ca, de, fr, ru, sv, tr translations
+
+* version 2.5.8
+
+** a new --posix option generates scanners with posix-style abc{1,3}
+   compatible parsing, see manual for the screwy details
+
+* version 2.5.7
+
+** configure.in now includes a call to AC_PREREQ to enforce the
+   requirement for autoconf at least 2.50 (This only effects you if
+   you're doing flex development.)
+
+** configure now uses autoconf's versioning information and configure
+   --help reports the bug-reporting address for flex
+
+** test suite now only reports success versus failure; reporting
+   skipped is problematic under the current setup
+
+** compilation with --disable-nls now works
+
+** flex can now be built in a separate directory
+
+* version 2.5.6
+
+** gettext support added (from gettext 0.11)
+
+*** translations for ca, da, de, es, fr, ko, ru, sv, tr included
+
+** distribution now built under automake 1.6 and autoconf 2.53
+
+** command-line option parsing happens differently now:
+
+*** Added long option parsing
+
+*** Options -n and -c, previously deprecated, now simply do nothing
+
+*** Options are now parsed left to right
+
+** added a number of new options
+
+*** All positive %options are now accessible from the command line
+
+*** Added option -D, to define a preprocessor symbol
+
+*** Added option --header=FILE to specify a C .h file to generate
+
+*** added option --yywrap to call yywrap on EOF
+
+*** added option --yylineno to track line count in yylineno
+
+*** --yyclass=NAME name of C++ class when generating c++ scanners
+
+*** for long option names which are associated with existing short
+options, see accompanying documentation
+
+*** new %option nounistd or command-line --nounistd added to prevent
+    flex from generating #include <unistd.h> on systems that don't
+    have that include file
+
+** Support for reentrant C scanners has been added
+
+*** Updated the manual with the new reentrant API
+
+*** Two new options %option reentrant (-R) and 
+%option reentrant-bison (-Rb)
+
+*** All globals optionally placed into struct yyglobals_t
+
+*** All access to globals replaced by macro invocations
+
+*** All functions optionally take one additional
+argument, yy_globals
+
+*** New style for invoking reentrant scanner:
+yylex_init(void** scanner );
+yylex( scanner );
+yylex_destroy( scanner );
+
+*** Added get/set functions for members of struct yy_globals_t
+e.g.,  yyget_text, yyget_leng, etc
+
+*** Prefix substitution added for new functions
+
+*** Macro shortcuts to the lengthy get/set functions
+provided for use in actions, e.g.,  yytext, yyleng, etc
+
+*** Arbitrary, user-defined data, "yyextra", may be added to scanner
+
+** %option nomain no longer implies %option yywrap
+But the inverse is still true
+
+** Developer test suite added
+
+*** TESTS/ directory has been added. Users can 
+'make test' in the TESTS directory to execute the test suite
+
+** Support for bison variables yylval and yylloc added
+
+** automake support for the build process
+
+** manual is now in texinfo/info format
+
+*** flex.1 removed from distribution
+
+** flex no longer generates C-language scanners with C++-style
+   comments
+
+** flex now generates scanners in c++ which are compatible with
+   recent c++ compilers
+
+** flex input scanner now recognizes '\r' as an EOL character
+
+See the file ONEWS for changes in earlier releases.
+
+See the file COPYING for copying conditions.
+
+Local Variables:
+mode: text
+mode: outline-minor
+end:

README.md

@@ -0,0 +1,114 @@
+[![Build Status](https://travis-ci.org/westes/flex.svg?branch=master)](https://travis-ci.org/westes/flex)
+
+This is flex, the fast lexical analyzer generator.
+
+flex is a tool for generating scanners: programs which recognize
+lexical patterns in text.
+
+The flex codebase is kept in
+[Git on GitHub.](https://github.com/westes/flex) Source releases of flex with some intermediate files already built can be found on [the github releases page.](https://github.com/westes/flex/releases)
+
+Use GitHub's [issues](https://github.com/westes/flex/issues) and
+[pull request](https://github.com/westes/flex) features to file bugs
+and submit patches.
+
+There are several mailing lists available as well:
+
+* flex-announce@lists.sourceforge.net - where posts will be made
+  announcing new releases of flex.
+* flex-help@lists.sourceforge.net - where you can post questions about
+  using flex
+* flex-devel@lists.sourceforge.net - where you can discuss development
+  of flex itself
+
+Find information on subscribing to the mailing lists or search in the
+archive at: https://sourceforge.net/p/flex/mailman/
+Note: Posting is only allowed from addresses that are subscribed to
+the lists.
+
+The flex distribution contains the following files which may be of
+interest:
+
+* README - This file.
+* NEWS - current version number and list of user-visible changes.
+* INSTALL - basic installation information.
+* ABOUT-NLS - description of internationalization support in flex.
+* COPYING - flex's copyright and license.
+* doc/ - user documentation.
+* examples/ - containing examples of some possible flex scanners and a
+              few other things. See the file examples/README for more
+              details.
+* tests/ - regression tests. See TESTS/README for details.
+* po/ - internationalization support files.
+
+You need the following tools to build flex from the maintainer's
+repository:
+
+* compiler suite - flex is built with gcc
+* bash, or a good Bourne-style shell
+* m4 - `m4 -P` needs to work; GNU m4 and a few others are suitable
+* GNU bison;  to generate parse.c from parse.y
+* autoconf; for handling the build system
+* automake; for Makefile generation
+* gettext; for i18n support
+* help2man; to generate the flex man page
+* tar, gzip, lzip, etc.; for packaging of the source distribution
+* GNU texinfo; to build and test the flex manual. Note that if you want
+  to build the dvi/ps/pdf versions of the documentation you will need
+  texi2dvi and related programs, along with a sufficiently powerful
+  implementation of TeX to process them. See your operating system
+  documentation for how to achieve this. The printable versions of the
+  manual are not built unless specifically requested, but the targets
+  are included by automake.
+* GNU indent; for indenting the flex source the way we want it done
+
+In cases where the versions of the above tools matter, the file
+configure.ac will specify the minimum required versions.
+
+Once you have all the necessary tools installed, life becomes
+simple. To prepare the flex tree for building, run the script:
+
+```bash
+./autogen.sh
+```
+
+in the top level of the flex source tree.
+
+This script calls the various tools needed to get flex ready for the
+GNU-style configure script to be able to work.
+
+From this point on, building flex follows the usual routine:
+
+```bash
+configure && make && make install
+```
+
+---
+
+This file is part of flex.
+
+This code is derived from software contributed to Berkeley by
+Vern Paxson.
+
+The United States Government has rights in this work pursuant
+to contract no. DE-AC03-76SF00098 between the United States
+Department of Energy and the University of California.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions
+are met:
+
+1. Redistributions of source code must retain the above copyright
+   notice, this list of conditions and the following disclaimer.
+2. Redistributions in binary form must reproduce the above copyright
+   notice, this list of conditions and the following disclaimer in the
+   documentation and/or other materials provided with the distribution.
+
+Neither the name of the University nor the names of its contributors
+may be used to endorse or promote products derived from this software
+without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
+IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
+WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+PURPOSE.

THANKS

@@ -0,0 +1,53 @@
+Vern had the following things to say:
+
+Many thanks to the 2.5 beta-testers for finding bugs and helping test and
+increase portability: Stan Adermann, Scott David Daniels, Charles Elliott,
+Joe Gayda, Chris Meier, James Nordby, Terrence O'Kane, Karsten Pahnke,
+Francois Pinard, Pat Rankin, Andreas Scherer, Marc Wiese, Nathan Zelle.
+
+Thanks to the many flex beta-testers, feedbackers, and contributors,
+especially Francois Pinard, Casey Leedom, Robert Abramovitz, Stan
+Adermann, Terry Allen, David Barker-Plummer, John Basrai, Neal Becker,
+Nelson H.F. Beebe, benson@odi.com, Karl Berry, Peter A. Bigot, Simon
+Blanchard, Keith Bostic, Frederic Brehm, Ian Brockbank, Kin Cho, Nick
+Christopher, Brian Clapper, J.T. Conklin, Jason Coughlin, Bill Cox,
+Nick Cropper, Dave Curtis, Scott David Daniels, Chris G. Demetriou,
+Theo Deraadt, Mike Donahue, Chuck Doucette, Tom Epperly, Leo Eskin,
+Chris Faylor, Chris Flatters, Jon Forrest, Jeffrey Friedl, Joe Gayda,
+Kaveh R. Ghazi, Wolfgang Glunz, Eric Goldman, Christopher M. Gould,
+Ulrich Grepel, Peer Griebel, Jan Hajic, Charles Hemphill, NORO Hideo,
+Jarkko Hietaniemi, Scott Hofmann, Jeff Honig, Dana Hudes, Eric Hughes,
+John Interrante, Ceriel Jacobs, Michal Jaegermann, Sakari Jalovaara,
+Jeffrey R. Jones, Henry Juengst, Klaus Kaempf, Jonathan I. Kamens,
+Terrence O Kane, Amir Katz, ken@ken.hilco.com, Kevin B. Kenny, Steve
+Kirsch, Winfried Koenig, Marq Kole, Ronald Lamprecht, Greg Lee, Rohan
+Lenard, Craig Leres, John Levine, Steve Liddle, David Loffredo, Mike
+Long, Mohamed el Lozy, Brian Madsen, Malte, Joe Marshall, Bengt
+Martensson, Chris Metcalf, Luke Mewburn, Jim Meyering, R. Alexander
+Milowski, Erik Naggum, G.T. Nicol, Landon Noll, James Nordby, Marc
+Nozell, Richard Ohnemus, Karsten Pahnke, Sven Panne, Roland Pesch,
+Walter Pelissero, Gaumond Pierre, Esmond Pitt, Jef Poskanzer, Joe
+Rahmeh, Jarmo Raiha, Frederic Raimbault, Pat Rankin, Rick Richardson,
+Kevin Rodgers, Kai Uwe Rommel, Jim Roskind, Alberto Santini, Andreas
+Scherer, Darrell Schiebel, Raf Schietekat, Doug Schmidt, Philippe
+Schnoebelen, Andreas Schwab, Larry Schwimmer, Alex Siegel, Eckehard
+Stolz, Jan-Erik Strvmquist, Mike Stump, Paul Stuart, Dave Tallman, Ian
+Lance Taylor, Chris Thewalt, Richard M. Timoney, Jodi Tsai, Paul
+Tuinenga, Gary Weik, Frank Whaley, Gerhard Wilhelms, Kent Williams,
+Ken Yap, Ron Zellar, Nathan Zelle, David Zuhn, and those whose names
+have slipped my marginal mail-archiving skills but whose contributions
+are appreciated all the same.
+
+Thanks to Keith Bostic, Jon Forrest, Noah Friedman,
+John Gilmore, Craig Leres, John Levine, Bob Mulcahy, G.T.
+Nicol, Francois Pinard, Rich Salz, and Richard Stallman for help with various
+distribution headaches.
+
+Thanks to Esmond Pitt and Earle Horton for 8-bit character support; to
+Benson Margulies and Fred Burke for C++ support; to Kent Williams and Tom
+Epperly for C++ class support; to Ove Ewerlid for support of NUL's; and to
+Eric Hughes for support of multiple buffers.
+
+This work was primarily done when I was with the Real Time Systems Group
+at the Lawrence Berkeley Laboratory in Berkeley, CA.  Many thanks to all there
+for the support I received.

autogen.sh

@@ -0,0 +1,51 @@
+#!/bin/sh
+
+#  This file is part of flex.
+
+#  Redistribution and use in source and binary forms, with or without
+#  modification, are permitted provided that the following conditions
+#  are met:
+
+#  1. Redistributions of source code must retain the above copyright
+#     notice, this list of conditions and the following disclaimer.
+#  2. Redistributions in binary form must reproduce the above copyright
+#     notice, this list of conditions and the following disclaimer in the
+#     documentation and/or other materials provided with the distribution.
+
+#  Neither the name of the University nor the names of its contributors
+#  may be used to endorse or promote products derived from this software
+#  without specific prior written permission.
+
+#  THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
+#  IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
+#  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+#  PURPOSE.
+
+# If you see no configure script, then run ./autogen.sh to create it
+# and procede with the "normal" build procedures.
+
+# use LIBTOOLIZE, if set
+LIBTOOLIZE_ORIG="$LIBTOOLIZE";
+if test "x$LIBTOOLIZE" = "x"; then LIBTOOLIZE=libtoolize; fi
+
+# test libtoolize
+$LIBTOOLIZE --version 2>/dev/null
+if test "$?" -ne 0; then
+   LIBTOOLIZE=glibtoolize
+   $LIBTOOLIZE --version 2>/dev/null
+   if test "$?" -ne 0; then
+      echo "error: libtoolize not working, re-run with LIBTOOLIZE=/path/to/libtoolize"
+      echo "       LIBTOOLIZE is currently \"$LIBTOOLIZE_ORIG\""
+      exit 1
+   fi
+fi
+
+#if we pretend to have a ChangeLog, then automake is less
+#worried. (Don't worry, we *do* have a ChangeLog, we just need the
+#Makefile first.)
+
+if ! test -f ChangeLog; then
+   touch ChangeLog
+fi
+"$LIBTOOLIZE" --install --force
+autoreconf --install --force

configure.ac

@@ -0,0 +1,188 @@
+#                                               -*- Autoconf -*-
+# Process this file with autoconf to produce a configure script.
+
+# This file is part of flex.
+
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+
+# 1. Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+
+# Neither the name of the University nor the names of its contributors
+# may be used to endorse or promote products derived from this software
+# without specific prior written permission.
+
+# THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
+# IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
+# WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+# PURPOSE.
+
+# autoconf requirements and initialization
+
+AC_INIT([the fast lexical analyser generator],[2.6.4],[flex-help@lists.sourceforge.net],[flex])
+AC_PREREQ([2.60])
+AC_CONFIG_SRCDIR([src/scan.l])
+AC_CONFIG_AUX_DIR([build-aux])
+AC_USE_SYSTEM_EXTENSIONS
+LT_INIT
+AM_INIT_AUTOMAKE([1.15 -Wno-portability foreign std-options dist-lzip parallel-tests subdir-objects])
+AC_CONFIG_HEADER([src/config.h])
+AC_CONFIG_LIBOBJ_DIR([lib])
+AC_CONFIG_MACRO_DIR([m4])
+SHARED_VERSION_INFO="2:0:0"
+AC_SUBST(SHARED_VERSION_INFO)
+
+# checks for programs
+
+AM_GNU_GETTEXT([external])
+AM_GNU_GETTEXT_VERSION([0.19.7])
+AC_PROG_YACC
+AS_IF([test "$YACC" != 'bison -y'], [
+	YACC="\${top_srcdir}/build-aux/missing bison -y"
+	AC_MSG_NOTICE(no bison program found: only required for maintainers)
+	])
+AM_CONDITIONAL([HAVE_BISON], [test "$YACC" = 'bison -y'])
+AM_PROG_LEX
+AC_PROG_CC
+AX_PROG_CC_FOR_BUILD
+AC_PROG_CXX
+AM_PROG_CC_C_O
+AC_PROG_LN_S
+AC_PROG_AWK
+AC_PROG_INSTALL
+
+pkgconfigdir=${libdir}/pkgconfig
+AC_SUBST(pkgconfigdir)
+
+# allow passing a variable `WARNINGFLAGS',
+#   either when invoking `configure', or when invoking `make'
+# default to something useful if GCC was detected
+
+AC_ARG_ENABLE([warnings],
+  [AS_HELP_STRING([--enable-warnings],
+                  [enable a bunch of compiler warning flags (defaults to GCC warning flags).])],
+  [AS_IF([test "x$GCC" = xyes],
+    [ : ${WARNINGFLAGS="-Wall -Wextra -Wmissing-prototypes -Wstrict-prototypes -Wnested-externs -Wold-style-definition -Wredundant-decls -Wconversion -Wno-unused-but-set-variable"} ])])
+
+AC_SUBST([WARNINGFLAGS])
+
+AC_ARG_ENABLE([libfl],
+  [AS_HELP_STRING([--disable-libfl],
+                  [do not build -lfl runtime support library])],
+  [], [enable_libfl=yes])
+AM_CONDITIONAL([ENABLE_LIBFL], [test "x$enable_libfl" = xyes])
+
+# --disable-bootstrap is intended only to workaround problems with bootstrap
+# (e.g. when cross-compiling flex or when bootstrapping has bugs).
+# Ideally we should be able to bootstrap even when cross-compiling.
+AC_ARG_ENABLE([bootstrap],
+  [AS_HELP_STRING([--disable-bootstrap],
+                  [don't perform a bootstrap when building flex])],
+  [], [enable_bootstrap=yes])
+AM_CONDITIONAL([ENABLE_BOOTSTRAP], [test "x$enable_bootstrap" = xyes])
+
+AM_CONDITIONAL([CROSS], [test "x$cross_compiling" = xyes])
+
+AC_PATH_PROG([HELP2MAN], help2man, [\${top_srcdir}/build-aux/missing help2man])
+  AS_IF([test "$HELP2MAN" = "\${top_srcdir}/build-aux/missing help2man"],
+    AC_MSG_WARN(help2man: program not found: building man page will not work)
+  )
+
+AC_PATH_PROGS([TEXI2DVI], [gtexi2dvi texi2dvi], [\${top_srcdir}/build-aux/missing texi2dvi])
+  AS_IF([test "$TEXI2DVI" = "\${top_srcdir}/build-aux/missing texi2dvi"],
+    AC_MSG_WARN(texi2dvi: program not found: building pdf version of manual will not work)
+  )
+
+# Check for a m4 that supports -P
+
+AC_CACHE_CHECK([for m4 that supports -P], [ac_cv_path_M4],
+[AC_PATH_PROGS_FEATURE_CHECK([M4], [gm4 gnum4 m4],
+              [[m4out=`echo 'm''4_divnum' | $ac_path_M4 -P`]
+                [test "x$m4out" = x0 \
+                && ac_cv_path_M4=$ac_path_M4 ac_path_M4_found=:]],
+              [AC_MSG_ERROR([could not find m4 that supports -P])])])
+AC_SUBST([M4], [$ac_cv_path_M4])
+AC_DEFINE_UNQUOTED([M4], ["$M4"], [Define to the m4 executable name.])
+
+AC_PATH_PROG([INDENT], indent, [\${top_srcdir}/build-aux/missing indent])
+  AC_MSG_CHECKING(if $INDENT is GNU indent)
+  AS_IF([$INDENT --version 2>/dev/null | head -n 1 | grep "GNU indent" >/dev/null],
+    [AC_MSG_RESULT(yes)],
+    [AC_MSG_RESULT(no)
+     AC_MSG_WARN($INDENT does not appear to be GNU indent; 'make indent' may not function properly)
+    ])
+
+# checks for headers
+
+AC_CHECK_HEADERS([regex.h strings.h sys/stat.h sys/wait.h unistd.h], [],
+  [AC_MSG_ERROR(required header not found on your system)])
+
+AC_CHECK_HEADERS([inttypes.h libintl.h limits.h locale.h malloc.h netinet/in.h])
+
+# checks for libraries
+
+# The test test-pthread uses libpthread, so we check for it here, but
+# all we need is the preprocessor symbol defined since we don't need
+# LIBS to include libpthread for building flex.
+
+LIBPTHREAD=''
+AC_CHECK_LIB(pthread, pthread_mutex_lock,
+   [AC_CHECK_HEADERS([pthread.h], [LIBPTHREAD=-lpthread],
+      [AC_MSG_WARN([pthread tests will be skipped])])],
+   [AC_MSG_WARN([pthread tests will be skipped])])
+AC_SUBST([LIBPTHREAD])
+
+AC_CHECK_LIB(m, log10)
+
+# Checks for typedefs, structures, and compiler characteristics.
+
+AC_HEADER_STDBOOL
+AC_C_CONST
+AC_TYPE_SIZE_T
+
+# Checks for library functions.
+
+AC_FUNC_ALLOCA
+AC_FUNC_FORK
+dnl Autoconf bug: AC_FUNC_MALLOC and AC_FUNC_REALLOC might not warn of cross
+dnl compilation. Workaround this.
+AC_FUNC_MALLOC
+AS_IF([test "$cross_compiling" = yes],
+   AC_MSG_WARN([result $ac_cv_func_malloc_0_nonnull guessed because of cross compilation]))
+AC_FUNC_REALLOC
+AS_IF([test "$cross_compiling" = yes],
+   AC_MSG_WARN([result $ac_cv_func_realloc_0_nonnull guessed because of cross compilation]))
+
+dnl Autoheader (<= 2.69) bug: "dnl" comments in a quoted argument of
+dnl AC_CHECK_FUNCS will expand wierdly in config.h.in.
+dnl (https://lists.gnu.org/archive/html/bug-autoconf/2018-02/msg00005.html)
+
+AC_CHECK_FUNCS([dup2 memset regcomp strcasecmp strchr strdup strtol], [],
+  [AC_MSG_ERROR(required library function not found on your system)])
+
+# Optional library functions:
+# pow - Used only by "examples/manual/expr".
+# setlocale - Needed only if NLS is enabled.
+# reallocarr - NetBSD function. Use reallocarray if not available.
+# reallocarray - OpenBSD function. We have replacement if not available.
+AC_CHECK_FUNCS([pow setlocale reallocarr reallocarray])
+
+AC_CONFIG_FILES(
+Makefile
+doc/Makefile
+examples/Makefile
+examples/fastwc/Makefile
+examples/manual/Makefile
+po/Makefile.in
+src/libfl.pc
+src/Makefile
+tools/Makefile
+tests/Makefile
+)
+
+AC_OUTPUT

control.ac

@@ -0,0 +1 @@
+XBS-Destinations: sourceforge

doc/.gitignore

@@ -0,0 +1,27 @@
+flex.aux
+flex.cp
+flex.cps
+flex.dvi
+flex.fn
+flex.fns
+flex.hk
+flex.hks
+flex.info*
+flex.ky
+flex.log
+flex.op
+flex.ops
+flex.pg
+flex.toc
+flex.tp
+flex.tps
+flex.vr
+flex.vrs
+Makefile
+Makefile.in
+flex.1
+flex.pdf
+flex.ps
+version.texi
+flex.html
+flex.t2p

doc/Makefile.am

@@ -0,0 +1,14 @@
+FLEX = $(top_builddir)/src/flex$(EXEEXT)
+
+info_TEXINFOS =	flex.texi
+dist_man_MANS = flex.1
+MAINTAINERCLEANFILES = flex.1
+
+CLEANFILES = *.aux *.cp *.cps *.fn *.fns *.hk *.hks *.ky *.log \
+	*.op *.ops *.pg *.toc *.tp *.tps *.vr *.vrs
+
+flex.1: $(top_srcdir)/configure.ac $(top_srcdir)/src/flex.skl $(top_srcdir)/src/options.c $(top_srcdir)/src/options.h | $(FLEX)
+	$(HELP2MAN) --name='$(PACKAGE_NAME)' --section=1 \
+	--source='The Flex Project' --manual='Programming' \
+	--output=$@ $(FLEX) \
+	|| rm -f $@

examples/Makefile.am

@@ -0,0 +1,29 @@
+# This file is part of flex.
+
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in the
+#    documentation and/or other materials provided with the distribution.
+
+# Neither the name of the University nor the names of its contributors
+# may be used to endorse or promote products derived from this software
+# without specific prior written permission.
+
+# THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
+# IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
+# WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+# PURPOSE.
+
+EXTRA_DIST = \
+	testxxLexer.l \
+	debflex.awk \
+	README
+
+SUBDIRS = \
+	manual \
+	fastwc

examples/README

@@ -0,0 +1,15 @@
+This directory contains some examples of what you can do with
+flex. These files are not tested regularly so you might have to tinker
+a bit before they work for you. Updates, new files and patches are welcome.
+
+	- debflex.awk, an awk script for anotating flex debug output.
+	  It presently only works with gawk and mawk, not with "old"
+	  or "new" awk.
+
+	- testxxLexer.l, a sample C++ program that uses flex's scanner
+	  class option ("-+").
+
+	- fastwc/, a subdirectory containing examples of how to use flex
+	  to write progressively higher-performance versions of the Unix
+	  "wc" utility.  This certainly should work with 2.5, but hasn't
+	  been tested.

examples/debflex.awk

@@ -0,0 +1,119 @@
+# Clarify the flex debug trace by substituting first line of each rule.
+# Francois Pinard <pinard@iro.umontreal.ca>, July 1990.
+#
+# Rewritten to process correctly \n's in scanner input.
+# BEGIN section modified to correct a collection of rules.
+# Michal Jaegermann <michal@phys.ualberta.ca>, December 1993
+#
+# Sample usage:
+#	flex -d PROGRAM.l
+#	gcc -o PROGRAM PROGRAM.c -lfl
+#	PROGRAM 2>&1 | gawk -f debflex.awk PROGRAM.l
+#
+# (VP's note: this script presently does not work with either "old" or
+#  "new" awk; fixes so it does will be welcome)
+
+BEGIN {
+    # Insure proper usage.
+
+    if (ARGC != 2) {
+	print "usage: gawk -f debflex.awk FLEX_SOURCE <DEBUG_OUTPUT";
+	exit (1);
+    }
+
+    # Remove and save the name of flex source.
+
+    source = ARGV[1];
+    ARGC--;
+
+    # Swallow the flex source file.
+
+    line = 0;
+    section = 1;
+    while (getline <source) {
+
+	# Count the lines.
+
+	line++;
+
+	# Count the sections.  When encountering section 3,
+	# break out of the awk BEGIN block.
+
+	if (match ($0, /^%%/)) {
+	    section++;
+	    if (section == 3) {
+		break;
+	    }
+	}
+	else {
+	    # Only the lines in section 2 which do not begin in a
+	    # tab or space might be referred to by the flex debug
+	    # trace.  Save only those lines.
+
+	    if (section == 2 && match ($0, /^[^ \t]/)) {
+		rules[line] = $0;
+	    }
+	}
+    }
+    dashes = "-----------------------------------------------------------";
+    collect = "";
+    line = 0;
+}
+
+# collect complete rule output from a scanner
+$0 !~ /^--/ {
+    collect = collect "\n" $0;
+    next;
+}
+# otherwise we have a new rule - process what we got so far
+{
+    process();
+}
+# and the same thing if we hit EOF
+END {
+    process();
+}
+
+function process() {
+
+    # splitting this way we loose some double dashes and
+    # left parentheses from echoed input - a small price to pay
+    n = split(collect, field, "\n--|[(]");
+
+    # this loop kicks in only when we already collected something
+    for (i = 1; i <= n; i++) {
+	if (0 != line) {
+	    # we do not care for traces of newlines.
+	    if (0 == match(field[i], /\"\n+\"[)]/)) {
+		if (rules[line]) {
+		    text = field[i];
+		    while ( ++i <= n) {
+			text = text field[i];
+		    }
+		    printf("%s:%d: %-8s -- %s\n",
+			   source, line, text, rules[line]);
+		}
+		else {
+		    print;
+		    printf "%s:%d: *** No such rule.\n", source, line;
+		}
+	    }
+	    line = 0;
+	    break;
+	}
+	if ("" != field[i]) {
+	    if ("end of buffer or a NUL)" == field[i]) {
+		print dashes;  # Simplify trace of buffer reloads
+		continue;
+	    }
+	    if (match(field[i], /accepting rule at line /)) {
+		# force interpretation of line as a number
+		line = 0 + substr(field[i], RLENGTH);
+		continue;
+	    }
+	    # echo everything else
+	    printf("--%s\n", field[i]);
+	}
+    }
+    collect = "\n" $0;  # ... and start next trace
+}

examples/fastwc/Makefile.am

@@ -0,0 +1,29 @@
+# This file is part of flex.
+
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in the
+#    documentation and/or other materials provided with the distribution.
+
+# Neither the name of the University nor the names of its contributors
+# may be used to endorse or promote products derived from this software
+# without specific prior written permission.
+
+# THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
+# IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
+# WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+# PURPOSE.
+
+EXTRA_DIST = \
+	wc5.l \
+	wc4.l \
+	wc3.l \
+	wc2.l \
+	wc1.l \
+	mywc.c \
+	README

examples/fastwc/README

@@ -0,0 +1,56 @@
+This directory contains some examples illustrating techniques for extracting
+high-performance from flex scanners.  Each program implements a simplified
+version of the Unix "wc" tool: read text from stdin and print the number of
+characters, words, and lines present in the text.  All programs were compiled
+using gcc (version unavailable, sorry) with the -O flag, and run on a
+SPARCstation 1+.  The input used was a PostScript file, mainly containing
+figures, with the following "wc" counts:
+
+	lines  words  characters
+	214217 635954 2592172
+
+
+The basic principles illustrated by these programs are:
+
+	- match as much text with each rule as possible
+	- adding rules does not slow you down!
+	- avoid backing up
+
+and the big caveat that comes with them is:
+
+	- you buy performance with decreased maintainability; make
+	  sure you really need it before applying the above techniques.
+
+See the "Performance Considerations" section of flexdoc for more
+details regarding these principles.
+
+
+The different versions of "wc":
+
+	mywc.c
+		a simple but fairly efficient C version
+
+	wc1.l	a naive flex "wc" implementation
+
+	wc2.l	somewhat faster; adds rules to match multiple tokens at once
+
+	wc3.l	faster still; adds more rules to match longer runs of tokens
+
+	wc4.l	fastest; still more rules added; hard to do much better
+		using flex (or, I suspect, hand-coding)
+
+	wc5.l	identical to wc3.l except one rule has been slightly
+		shortened, introducing backing-up
+
+Timing results (all times in user CPU seconds):
+
+	program	  time 	 notes
+	-------   ----   -----
+	wc1       16.4   default flex table compression (= -Cem)
+	wc1        6.7   -Cf compression option
+	/bin/wc	   5.8	 Sun's standard "wc" tool
+	mywc	   4.6   simple but better C implementation!
+	wc2	   4.6   as good as C implementation; built using -Cf
+	wc3	   3.8   -Cf
+	wc4	   3.3   -Cf
+	wc5	   5.7   -Cf; ouch, backing up is expensive

examples/fastwc/mywc.c

@@ -0,0 +1,26 @@
+/* A simple but fairly efficient C version of the Unix "wc" tool */
+
+#include <stdio.h>
+#include <ctype.h>
+
+main()
+{
+	int c, cc = 0, wc = 0, lc = 0;
+	FILE *f = stdin;
+
+	while ((c = getc(f)) != EOF) {
+		++cc;
+		if (isgraph(c)) {
+			++wc;
+			do {
+				c = getc(f);
+				if (c == EOF)
+					goto done;
+				++cc;
+			} while (isgraph(c));
+		}
+		if (c == '\n')
+			++lc;
+	}
+done:	printf( "%8d%8d%8d\n", lc, wc, cc );
+}

examples/fastwc/wc1.l

@@ -0,0 +1,19 @@
+/* First cut at a flex-based "wc" tool. */
+
+ws    [ \t]
+nonws [^ \t\n]
+
+%option main noyywrap
+%%
+	int cc = 0, wc = 0, lc = 0;
+
+{nonws}+	cc += yyleng; ++wc;
+
+{ws}+		cc += yyleng;
+
+\n		++lc; ++cc;
+
+<<EOF>>		{
+		printf( "%8d %8d %8d\n", lc, wc, cc );
+		yyterminate();
+		}

examples/fastwc/wc2.l

@@ -0,0 +1,21 @@
+/* Somewhat faster "wc" tool: match more text with each rule */
+
+ws    [ \t]
+nonws [^ \t\n]
+word  {ws}*{nonws}+
+
+%option main noyywrap
+%%
+	int cc = 0, wc = 0, lc = 0;
+
+{word}{ws}*	cc += yyleng; ++wc;
+{word}{ws}*\n	cc += yyleng; ++wc; ++lc;
+
+{ws}+		cc += yyleng;
+
+\n+		cc += yyleng; lc += yyleng;
+
+<<EOF>>		{
+		printf( "%8d %8d %8d\n", lc, wc, cc );
+		yyterminate();
+		}

examples/fastwc/wc3.l

@@ -0,0 +1,25 @@
+/* Somewhat faster still: potentially match a lot of text with each rule */
+
+ws    [ \t]
+nonws [^ \t\n]
+word  {ws}*{nonws}+
+words {word}{ws}+
+
+%option main noyywrap
+%%
+	int cc = 0, wc = 0, lc = 0;
+
+{word}{ws}*		cc += yyleng; ++wc;
+{word}{ws}*\n		cc += yyleng; ++wc; ++lc;
+{words}{word}{ws}*	cc += yyleng; wc += 2;
+{words}{2}{word}{ws}*	cc += yyleng; wc += 3;
+{words}{3}{word}{ws}*	cc += yyleng; wc += 4;
+
+{ws}+			cc += yyleng;
+
+\n+			cc += yyleng; lc += yyleng;
+
+<<EOF>>		{
+		printf( "%8d %8d %8d\n", lc, wc, cc );
+		yyterminate();
+		}

examples/fastwc/wc4.l

@@ -0,0 +1,28 @@
+/* Fastest version of wc: add rules to pick up newlines, too */
+
+ws    [ \t]
+nonws [^ \t\n]
+word  {ws}*{nonws}+
+words {word}{ws}+
+
+%option main noyywrap
+%%
+	int cc = 0, wc = 0, lc = 0;
+
+{word}{ws}*		++wc; cc += yyleng;
+{word}{ws}*\n		++wc; cc += yyleng; ++lc;
+{words}{word}{ws}*	wc += 2; cc += yyleng;
+{words}{word}{ws}*\n	wc += 2; cc += yyleng; ++lc;
+{words}{2}{word}{ws}*	wc += 3; cc += yyleng;
+{words}{2}{word}{ws}*\n	wc += 3; cc += yyleng; ++lc;
+{words}{3}{word}{ws}*	wc += 4; cc += yyleng;
+{words}{3}{word}{ws}*\n	wc += 4; cc += yyleng; ++lc;
+
+{ws}+			cc += yyleng;
+
+\n+			cc += yyleng; lc += yyleng;
+
+<<EOF>>		{
+		printf( "%8d %8d %8d\n", lc, wc, cc );
+		yyterminate();
+		}

examples/fastwc/wc5.l

@@ -0,0 +1,25 @@
+/* Oops; slight change from wc3.l introduces backtracking */
+
+ws    [ \t]
+nonws [^ \t\n]
+word  {ws}*{nonws}+
+words {word}{ws}+
+
+%option main noyywrap
+%%
+	int cc = 0, wc = 0, lc = 0;
+
+{word}{ws}*		cc += yyleng; ++wc;
+{word}{ws}*\n		cc += yyleng; ++wc; ++lc;
+{words}{word}		cc += yyleng; wc += 2;	/* oops */
+{words}{2}{word}{ws}*	cc += yyleng; wc += 3;
+{words}{3}{word}{ws}*	cc += yyleng; wc += 4;
+
+{ws}+			cc += yyleng;
+
+\n+			cc += yyleng; lc += yyleng;
+
+<<EOF>>		{
+		printf( "%8d %8d %8d\n", lc, wc, cc );
+		yyterminate();
+		}

examples/manual/ChangeLog

@@ -0,0 +1,24 @@
+Tue Oct  5 21:51:59 1993  Vern Paxson
+
+	* Removed FILTER/ subdirectory.
+
+	* Removed alloca.c.
+
+	* Changed Makefile definition of CC to just "gcc -g", removed
+	  assumption of alloca being present.
+
+	* Added pointer to MISC/fastwc/ to wc.lex.
+
+Tue Jun  8 15:47:39 1993  Gavin Thomas Nicol  (nick at sillybugs)
+
+	* Changed main() in wc.lex extensively. The old version would not
+	  work correctly without the YY_NEW_FILE. (lex handles the older
+	  version OK though).
+
+	* Added a rule to expr.lex to handle whitespace. The old version
+ 	  reported an illegal character.
+
+	* Added -traditional to the gcc flags because the flex definition
+	  for free() clashes with some systems that have old header files.
+	  
+

examples/manual/Makefile.am

@@ -0,0 +1,55 @@
+# This file is part of flex.
+
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in the
+#    documentation and/or other materials provided with the distribution.
+
+# Neither the name of the University nor the names of its contributors
+# may be used to endorse or promote products derived from this software
+# without specific prior written permission.
+
+# THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
+# IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
+# WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+# PURPOSE.
+
+EXTRA_DIST = \
+	ChangeLog \
+	Makefile.examples \
+	README \
+	cat.lex   \
+	dates.lex \
+	datetest.dat \
+	eof_rules.lex \
+	eof_test01.txt \
+	eof_test02.txt \
+	eof_test03.txt \
+	expr.lex \
+	expr.y \
+	front.lex \
+	front.y \
+	j2t.lex \
+	myname.lex \
+	myname.txt \
+	myname2.lex \
+	numbers.lex \
+	pas_include.lex \
+	pascal.lex \
+	reject.lex \
+	replace.lex \
+	string1.lex \
+	string2.lex \
+	strtest.dat \
+	unput.lex \
+	user_act.lex \
+	userinit.lex \
+	wc.lex \
+	yymore.lex \
+	yymore2.lex \
+	yymoretest.dat

examples/manual/Makefile.examples

@@ -0,0 +1,88 @@
+#############################################################
+#
+# Makefile     : Makefile for Flex examples.
+# Author       : G.T.Nicol
+# Last Updated : 1993/10/05
+#
+# If you use bison, you may have to supply an alloca
+#
+#############################################################
+
+CC       = gcc -g
+LEX      = flex -i -I 
+YACC     = bison -d -y
+ALLOCA   =
+
+############################################################
+#
+# DO NOT CHANGE ANYTHING FROM HERE ON !!!!!!!!! 
+#
+############################################################
+
+all: expr front myname eof wc replace user_act string1\
+     string2 yymore numbers dates cat
+
+expr:   expr.y expr.lex
+	$(YACC) expr.y
+	$(LEX)  expr.lex
+	$(CC) -o expr lex.yy.c y.tab.c $(ALLOCA) -ll -lm
+
+front:  front.y front.lex
+	$(YACC) front.y
+	$(LEX)  front.lex
+	$(CC) -o front lex.yy.c y.tab.c $(ALLOCA) -ll -lm
+
+numbers: numbers.lex
+	$(LEX)  numbers.lex
+	$(CC)   lex.yy.c -o numbers
+
+dates: dates.lex
+	$(LEX)  dates.lex
+	$(CC)   lex.yy.c -o dates -ll
+
+yymore: yymore.lex
+	$(LEX)  yymore.lex
+	$(CC)   lex.yy.c -o yymore -ll
+
+string1: string1.lex
+	$(LEX)  string1.lex
+	$(CC)   lex.yy.c -o string1 -ll
+
+string2: string2.lex
+	$(LEX)  string2.lex
+	$(CC)   lex.yy.c -o string2 -ll
+
+myname: myname.lex
+	$(LEX)  myname.lex
+	$(CC)   lex.yy.c -o myname -ll
+
+myname2: myname2.lex
+	$(LEX)  myname2.lex
+	$(CC)   lex.yy.c -o myname2 -ll
+
+eof:    eof_rules.lex
+	$(LEX)  eof_rules.lex
+	$(CC)   lex.yy.c -o eof -ll
+
+wc:     wc.lex
+	$(LEX)  wc.lex
+	$(CC)   lex.yy.c -o wc -ll
+
+cat:    cat.lex
+	$(LEX)  cat.lex
+	$(CC)   lex.yy.c -o cat -ll
+
+replace: replace.lex
+	$(LEX)  replace.lex
+	$(CC)   lex.yy.c -o replace -ll
+
+user_act: expr.y expr.lex
+	$(LEX)  user_act.lex
+	$(CC) -o user_act lex.yy.c -ll 
+
+clean:
+	rm -f *.BAK *.o core *~* *.a 
+	rm -f *.tab.h *.tab.c
+	rm -f myname expr lex.yy.c *.out eof wc yymore
+	rm -f replace front user_act string1 string2
+	rm -f dates numbers cat

examples/manual/README

@@ -0,0 +1,12 @@
+This directory contains the example programs from the manual, and a
+few other things as well. To make all the programs, simply type "make
+-f Makefile.examples", and assuming you have flex and gcc, all will be
+well.
+
+To build the programs individually, type
+
+   make -f Makefile.examples program_name
+
+For example:
+
+   make -f Makefile.examples expr

examples/manual/cat.lex

@@ -0,0 +1,45 @@
+/*
+ * cat.lex: A demonstration of YY_NEW_FILE.
+ */
+
+%{
+#include <stdio.h>
+
+char **names = NULL;
+int  current = 1;
+%}
+
+%%
+<<EOF>> {
+           current += 1;
+           if(names[current] != NULL){
+              yyin = fopen(names[current],"r");
+              if(yyin == NULL){
+                fprintf(stderr,"cat: unable to open %s\n",
+                        names[current]);
+                yyterminate();
+              }
+              YY_NEW_FILE;
+           } else {
+             yyterminate();
+           }
+        }
+%%
+
+int main(int argc, char **argv)
+{
+    if(argc < 2){
+       fprintf(stderr,"Usage: cat files....\n");
+       exit(1);
+    }
+    names = argv;
+
+    yyin = fopen(names[current],"r");
+    if(yyin == NULL){
+      fprintf(stderr,"cat: unable to open %s\n",
+              names[current]);
+      yyterminate();
+    }
+
+    yylex();
+}

examples/manual/dates.lex

@@ -0,0 +1,106 @@
+/*
+ * dates.lex: An example of using start states to
+ *            distinguish between different date formats.
+ */
+
+%{
+#include <ctype.h>
+
+char month[20],dow[20],day[20],year[20];
+
+%}
+
+skip        of|the|[ \t,]*
+
+mon	    (mon(day)?)
+tue	    (tue(sday)?)
+wed	    (wed(nesday)?)
+thu	    (thu(rsday)?)
+fri	    (fri(day)?)
+sat	    (sat(urday)?)
+sun	    (sun(day)?)
+
+day_of_the_week	({mon}|{tue}|{wed}|{thu}|{fri}|{sat}|{sun})
+
+jan	    (jan(uary)?)
+feb	    (feb(ruary)?)
+mar	    (mar(ch)?)
+apr	    (apr(il)?)
+may	    (may)
+jun	    (jun(e)?)
+jul	    (jul(y)?)
+aug	    (aug(ust)?)
+sep	    (sep(tember)?)
+oct	    (oct(ober)?)
+nov	    (nov(ember)?)
+dec	    (dec(ember)?)
+
+first_half  ({jan}|{feb}|{mar}|{apr}|{may}|{jun})
+second_half ({jul}|{aug}|{sep}|{oct}|{nov}|{dec})
+month 	    {first_half}|{second_half}
+
+nday         [1-9]|[1-2][0-9]|3[0-1]
+nmonth       [1-9]|1[0-2]
+nyear        [0-9]{1,4}
+
+year_ext    (ad|AD|bc|BC)?
+day_ext     (st|nd|rd|th)?
+
+%s LONG SHORT
+%s DAY DAY_FIRST YEAR_FIRST YEAR_LAST YFMONTH YLMONTH
+
+%%
+
+  /* the default is month-day-year */
+
+<LONG>{day_of_the_week}    strcpy(dow,yytext); 
+<LONG>{month}              strcpy(month,yytext); BEGIN(DAY);
+
+  /* handle the form: day-month-year */
+
+<LONG>{nday}{day_ext}      strcpy(day,yytext);   BEGIN(DAY_FIRST);
+<DAY_FIRST>{month}         strcpy(month,yytext); BEGIN(LONG);
+<DAY>{nday}{day_ext}       strcpy(day,yytext);   BEGIN(LONG);  
+
+<LONG>{nyear}{year_ext}  {
+                           printf("Long:\n");
+                           printf("  DOW   : %s \n",dow);
+                           printf("  Day   : %s \n",day);
+                           printf("  Month : %s \n",month);
+                           printf("  Year  : %s \n",yytext);
+                           strcpy(dow,"");
+                           strcpy(day,"");
+                           strcpy(month,"");
+                         }
+
+  /* handle dates of the form: day-month-year */
+
+<SHORT>{nday}              strcpy(day,yytext);  BEGIN(YEAR_LAST);
+<YEAR_LAST>{nmonth}        strcpy(month,yytext);BEGIN(YLMONTH);
+<YLMONTH>{nyear}           strcpy(year,yytext); BEGIN(SHORT);
+
+  /* handle dates of the form: year-month-day */
+
+<SHORT>{nyear}             strcpy(year,yytext); BEGIN(YEAR_FIRST);
+<YEAR_FIRST>{nmonth}       strcpy(month,yytext);BEGIN(YFMONTH);
+<YFMONTH>{nday}            strcpy(day,yytext);  BEGIN(SHORT);
+
+
+<SHORT>\n                {
+                           printf("Short:\n");
+                           printf("  Day   : %s \n",day);
+                           printf("  Month : %s \n",month);
+                           printf("  Year  : %s \n",year);
+                           strcpy(year,""); 
+                           strcpy(day,"");
+                           strcpy(month,"");
+                         }
+
+long\n                      BEGIN(LONG);
+short\n                     BEGIN(SHORT);
+
+{skip}*
+\n
+.
+
+

examples/manual/datetest.dat

@@ -0,0 +1,28 @@
+short
+1989:12:23
+1989:11:12
+23:12:1989
+11:12:1989
+1989/12/23
+1989/11/12
+23/12/1989
+11/12/1989
+1989-12-23
+1989-11-12
+23-12-1989
+11-12-1989
+long
+Friday the 5th of January, 1989
+Friday, 5th of January, 1989
+Friday, January 5th, 1989
+Fri, January 5th, 1989
+Fri, Jan 5th, 1989
+Fri, Jan 5, 1989
+FriJan 5, 1989
+FriJan5, 1989
+FriJan51989
+Jan51989
+
+
+
+

examples/manual/eof_rules.lex

@@ -0,0 +1,65 @@
+/*
+ * eof_rules.lex : An example of using multiple buffers
+ *                 EOF rules, and start states
+ */
+
+%{
+                              
+#define MAX_NEST 10                   
+
+YY_BUFFER_STATE include_stack[MAX_NEST];
+int             include_count = -1;
+
+%}
+
+
+%x INCLUDE
+
+%%
+
+^"#include"[ \t]*\"  BEGIN(INCLUDE);
+<INCLUDE>\"          BEGIN(INITIAL); 
+<INCLUDE>[^\"]+ {      /* get the include file name */
+          if ( include_count >= MAX_NEST){
+             fprintf( stderr, "Too many include files" );
+             exit( 1 );
+          }
+
+          include_stack[++include_count] = YY_CURRENT_BUFFER;
+
+          yyin = fopen( yytext, "r" );
+          if ( ! yyin ){
+             fprintf( stderr, "Unable to open \"%s\"\n",yytext);
+             exit( 1 );
+          }
+
+          yy_switch_to_buffer(yy_create_buffer(yyin,YY_BUF_SIZE));
+
+          BEGIN(INITIAL);
+        }
+<INCLUDE><<EOF>> 
+        {
+            fprintf( stderr, "EOF in include" );
+            yyterminate();
+        }
+<<EOF>> {
+          if ( include_count <= 0 ){
+            yyterminate();
+          } else {
+            yy_delete_buffer(include_stack[include_count--] );
+            yy_switch_to_buffer(include_stack[include_count] );
+            BEGIN(INCLUDE);
+          }
+        }
+[a-z]+               ECHO;
+.|\n                 ECHO;
+
+
+
+
+
+
+
+
+
+

examples/manual/eof_test01.txt

@@ -0,0 +1,17 @@
+This is test file #1
+
+-------------------------------------------------
+
+We will now include test #2 in a standard way.
+
+#include "eof_test02.txt"
+
+-------------------------------------------------
+
+And now we will include test # 2 with a different
+format
+
+#include "eof_test02.txt"
+-------------------------------------------------
+
+and this is the end of the test.

examples/manual/eof_test02.txt

@@ -0,0 +1,8 @@
+INCLUDE #2
+
+This is the second file that will
+be included.
+
+>>> Foo are GNU?
+
+#include "eof_test03.txt"

examples/manual/eof_test03.txt

@@ -0,0 +1,7 @@
+INCLUDE #3
+
+This is the third file that will
+be included.
+
+>>> echo "I am `whoami`!!"
+

examples/manual/expr.lex

@@ -0,0 +1,35 @@
+/*
+ * expr.lex : Scanner for a simple
+ *            expression parser.
+ */
+
+%{
+#include "y.tab.h"
+
+%}
+
+%%
+
+[0-9]+     { yylval.val = atol(yytext);
+             return(NUMBER);
+           }
+[0-9]+\.[0-9]+ { 
+             sscanf(yytext,"%f",&yylval.val);
+             return(NUMBER);
+           }
+"+"        return(PLUS);
+"-"        return(MINUS);
+"*"        return(MULT);
+"/"        return(DIV);
+"^"        return(EXPON);
+"("        return(LB);
+")"        return(RB);
+\n         return(EOL);
+[\t ]*     /* throw away whitespace */
+.          { yyerror("Illegal character"); 
+             return(EOL);
+           }
+%%
+
+
+

examples/manual/expr.y

@@ -0,0 +1,64 @@
+/*
+ * expr.y : A simple yacc expression parser
+ *          Based on the Bison manual example. 
+ */
+
+%{
+#include <stdio.h>
+#include <math.h>
+
+%}
+
+%union {
+   float val;
+}
+
+%token NUMBER
+%token PLUS MINUS MULT DIV EXPON
+%token EOL
+%token LB RB
+
+%left  MINUS PLUS
+%left  MULT DIV
+%right EXPON
+
+%type  <val> exp NUMBER
+
+%%
+input   :
+        | input line
+        ;
+
+line    : EOL
+        | exp EOL { printf("%g\n",$1);}
+
+exp     : NUMBER                 { $$ = $1;        }
+        | exp PLUS  exp          { $$ = $1 + $3;   }
+        | exp MINUS exp          { $$ = $1 - $3;   }
+        | exp MULT  exp          { $$ = $1 * $3;   }
+        | exp DIV   exp          { $$ = $1 / $3;   }
+        | MINUS  exp %prec MINUS { $$ = -$2;       }
+        | exp EXPON exp          { $$ = pow($1,$3);}
+        | LB exp RB                      { $$ = $2;        }
+        ;
+
+%%
+
+yyerror(char *message)
+{
+  printf("%s\n",message);
+}
+
+int main(int argc, char *argv[])
+{
+  yyparse();
+  return(0);
+}
+
+
+
+
+
+
+
+

examples/manual/front.lex

@@ -0,0 +1,40 @@
+%{
+#include <stdio.h>
+#include <string.h>
+#include "y.tab.h"                 /* this comes from bison        */
+
+#define TRUE  1
+#define FALSE 0
+
+#define copy_and_return(token_type) { strcpy(yylval.name,yytext); \
+                                      return(token_type); }
+
+int             yylexlinenum = 0;  /* so we can count lines        */
+%}
+
+%%
+                            /* Lexical scanning rules begin from here.  */
+
+MEN|WOMEN|STOCKS|TREES      copy_and_return(NOUN)
+MISTAKES|GNUS|EMPLOYEES     copy_and_return(NOUN)
+LOSERS|USERS|CARS|WINDOWS   copy_and_return(NOUN)
+
+DATABASE|NETWORK|FSF|GNU    copy_and_return(PROPER_NOUN)
+COMPANY|HOUSE|OFFICE|LPF    copy_and_return(PROPER_NOUN)
+
+THE|THIS|THAT|THOSE         copy_and_return(DECLARATIVE)
+
+ALL|FIRST|LAST              copy_and_return(CONDITIONAL)
+
+FIND|SEARCH|SORT|ERASE|KILL copy_and_return(VERB)
+ADD|REMOVE|DELETE|PRINT     copy_and_return(VERB)
+
+QUICKLY|SLOWLY|CAREFULLY    copy_and_return(ADVERB)
+
+IN|AT|ON|AROUND|INSIDE|ON   copy_and_return(POSITIONAL)
+
+"."                         return(PERIOD);                             
+"\n"                        yylexlinenum++; return(NEWLINE);            
+.                                                                       
+%%
+

examples/manual/front.y

@@ -0,0 +1,118 @@
+/* C code supplied at the beginning of the file.  */
+
+%{
+
+#include <stdio.h>                          
+#include <string.h>
+
+extern int  yylexlinenum;                   /* these are in YYlex      */
+extern char *yytext;                        /* current token           */
+
+
+%}
+
+/* Keywords and reserved words begin here.  */
+
+%union{                                     /* this is the data union  */
+    char   name[128];                       /* names                   */
+}
+
+/*-------------------- the reserved words -----------------------------*/
+
+%token PERIOD
+%token NEWLINE
+%token POSITIONAL
+
+%token VERB
+%token ADVERB
+
+%token PROPER_NOUN
+%token NOUN
+
+%token DECLARATIVE
+%token CONDITIONAL
+
+
+%type  <name> declarative
+%type  <name> verb_phrase
+%type  <name> noun_phrase
+%type  <name> position_phrase
+%type  <name> adverb
+
+%type  <name> POSITIONAL VERB ADVERB PROPER_NOUN 
+%type  <name> NOUN DECLARATIVE CONDITIONAL
+
+%%
+
+sentence_list : sentence
+              | sentence_list NEWLINE sentence
+              ;
+
+
+sentence : verb_phrase noun_phrase position_phrase adverb period 
+           {
+             printf("I understand that sentence.\n");
+             printf("VP = %s \n",$1);
+             printf("NP = %s \n",$2);
+             printf("PP = %s \n",$3);
+             printf("AD = %s \n",$4);
+           }
+         | { yyerror("That's a strange sentence !!");  }
+         ;
+
+position_phrase : POSITIONAL  declarative PROPER_NOUN 
+                  {
+                    sprintf($$,"%s %s %s",$1,$2,$3);
+                  }   
+                | /* empty */ { strcpy($$,""); }
+                ;
+               
+
+verb_phrase : VERB { strcpy($$,$1); strcat($$," "); }
+            | adverb VERB  
+              {
+                sprintf($$,"%s %s",$1,$2);
+              }
+            ;
+
+adverb : ADVERB      { strcpy($$,$1); }
+       | /* empty */ { strcpy($$,""); }
+       ;
+
+noun_phrase : DECLARATIVE NOUN 
+              {
+                sprintf($$,"%s %s",$1,$2);
+              }
+            | CONDITIONAL declarative NOUN 
+                  {
+                    sprintf($$,"%s %s %s",$1,$2,$3);
+                  }   
+            | NOUN { strcpy($$,$1); strcat($$," "); }
+            ;
+
+declarative : DECLARATIVE { strcpy($$,$1); }
+            | /* empty */ { strcpy($$,""); }
+            ;
+
+period : /* empty */
+       | PERIOD
+       ;
+
+
+%%
+
+/* Supplied main() and yyerror() functions.  */
+
+int main(int argc, char *argv[])
+{
+  yyparse();   /* parse the file          */
+  return(0);
+}
+
+int yyerror(char *message)
+{
+  extern FILE *yyout;
+
+  fprintf(yyout,"\nError at line %5d. (%s) \n",
+                     yylexlinenum,message);
+}

examples/manual/j2t.lex

@@ -0,0 +1,442 @@
+/*
+ * j2t.lex : An example of the use (possibly abuse!)
+ *           of start states.
+ */
+
+%{
+#define MAX_STATES 1024
+#define TRUE  1
+#define FALSE 0
+
+#define CHAPTER   "@chapter"
+#define SECTION   "@section"
+#define SSECTION  "@subsection"
+#define SSSECTION "@subsubsection"
+
+int  states[MAX_STATES];
+int  statep = 0;
+
+int  need_closing = FALSE;
+
+char buffer[YY_BUF_SIZE];
+
+extern char *yytext;
+
+/*
+ * set up the head of the *.texinfo file the program
+ * will produce. This is a standard texinfo header.
+ */
+
+void print_header(void)
+{
+   printf("\\input texinfo @c -*-texinfo-*-\n");
+   printf("@c           %c**start of header\n",'%');
+   printf("@setfilename       jargon.info\n");
+   printf("@settitle          The New Hackers Dictionary\n");
+   printf("@synindex          fn cp\n");
+   printf("@synindex          vr cp\n");
+   printf("@c           %c**end of header\n",'%');
+   printf("@setchapternewpage odd\n");
+   printf("@finalout\n");
+   printf("@c @smallbook\n");
+   printf("\n");
+   printf("@c ==========================================================\n\n");
+   printf("@c  This file was produced by j2t. Any mistakes are *not* the\n");
+   printf("@c  fault of the jargon file editors.                        \n");
+   printf("@c ==========================================================\n\n");
+   printf("@titlepage\n");
+   printf("@title     The New Hackers Dictionary\n");
+   printf("@subtitle  Version 2.9.10\n");
+   printf("@subtitle  Generated by j2t\n");
+   printf("@author    Eric S. Raymond, Guy L. Steel, Mark Crispin et al.\n"); 
+   printf("@end titlepage\n");
+   printf("@page\n");
+   printf("\n@c ==========================================================\n");
+   printf("\n\n");
+   printf("@unnumbered Preface\n");
+   printf("@c          *******\n");
+}
+
+/*
+ * create the tail of the texinfo file produced.
+ */
+
+void print_trailer(void)
+{
+   printf("\n@c ==========================================================\n");
+   printf("@contents\n");   /* print the table of contents */
+   printf("@bye\n\n");     
+}
+
+/*
+ * write an underline under a section
+ * or chapter so we can find it later. 
+ */
+
+void write_underline(int len, int space, char ch)
+{
+  int loop;
+
+  printf("@c ");
+
+  for(loop=3; loop<space; loop++){
+    printf(" ");
+  }
+
+  while(len--){
+    printf("%c",ch);
+  }
+  printf("\n\n");
+}
+
+/*
+ * check for texinfo special characters
+ * and escape them
+ */
+
+char *check_and_convert(char *string)
+{
+  int  buffpos = 0;
+  int  len,loop;
+
+  len = strlen(string);  
+  for(loop=0; loop<len; loop++){
+    if(string[loop] == '@' || string[loop] == '{' || string[loop] == '}'){
+      buffer[buffpos++] = '@';
+      buffer[buffpos++] = string[loop];
+    } else {
+      buffer[buffpos++] = string[loop];
+    }
+  }
+  buffer[buffpos] = '\0';
+  return(buffer);
+}
+
+/*
+ * write out a chapter,section, or subsection
+ * header
+ */
+
+void write_block_header(char *type)
+{
+  int loop;
+  int len;
+
+  (void)check_and_convert(yytext);
+  len = strlen(buffer);
+  for(loop=0; buffer[loop] != '\n';loop++)
+         ;
+  buffer[loop] = '\0';
+  printf("%s %s\n",type,buffer);
+  write_underline(strlen(buffer),strlen(type)+1,'*');
+}
+
+%}
+
+/*
+ * the flex description starts here 
+ */
+
+%x HEADING EXAMPLE ENUM EXAMPLE2
+%x BITEM BITEM_ITEM 
+%s LITEM LITEM2 
+
+%%
+
+^#[^#]*"#"  /* skip the header & trailer */
+                     /* chapters have asterisks under them 
+                      * and are terminated by a colon
+                      */
+^[^\n:]+\n[*]+\n      write_block_header(CHAPTER); 
+
+^"= "[A-Z]" ="\n"="*  { /* we create a seciton for each category */
+                        if(need_closing == TRUE){
+                          printf("@end table\n\n\n");
+                        }
+                        need_closing = TRUE;
+                        write_block_header(SECTION);
+                        printf("\n\n@table @b\n");
+                      }
+
+"Examples:"[^\.]+     ECHO;
+
+"*"[^*\n]+"*"         { /* @emph{}(emphasized) text */
+                        yytext[yyleng-1] = '\0';
+                        (void)check_and_convert(&yytext[1]);
+                        printf("@i{%s}",buffer);
+                      }
+
+"{{"[^}]+"}}"         { /* special emphasis */
+                        yytext[yyleng-2] = '\0';
+                        (void)check_and_convert(&yytext[2]);
+                        printf("@b{%s}",buffer);
+                      }
+
+"{"[^}]+"}"           { /* special emphasis */
+                        yytext[yyleng-1] = '\0';
+                        (void)check_and_convert(&yytext[1]);
+                        printf("@b{%s}",buffer);
+                      }
+  
+ /* escape some special texinfo characters */
+<INITIAL,LITEM,LITEM2,BITEM,ENUM,EXAMPLE,EXAMPLE2>"@"  printf("@@");
+<INITIAL,LITEM,LITEM2,BITEM,ENUM,EXAMPLE,EXAMPLE2>"{"  printf("@{");
+<INITIAL,LITEM,LITEM2,BITEM,ENUM,EXAMPLE,EXAMPLE2>"}"  printf("@}");
+
+ /*
+  * reproduce @example code
+  */
+
+":"\n+[^\n0-9*]+\n"     "[^ ]   {
+                        int loop;
+                        int len;
+                        int cnt;
+
+                        printf(":\n\n@example \n");
+                        strcpy(buffer,yytext);
+                        len = strlen(buffer);
+                        cnt = 0;
+                        for(loop=len; loop > 0;loop--){
+                          if(buffer[loop] == '\n')
+                             cnt++;
+                          if(cnt == 2)
+                              break;
+                        }
+                        yyless(loop+1);
+                        statep++;
+                        states[statep] = EXAMPLE2;
+                        BEGIN(EXAMPLE2);
+                      }
+<EXAMPLE,EXAMPLE2>^\n  {
+                      printf("@end example\n\n");
+                      statep--; 
+                      BEGIN(states[statep]);
+                    }
+
+ /*
+  * repoduce @enumerate lists
+  */
+
+":"\n+[ \t]*[0-9]+"."   {
+                      int loop;
+                      int len;
+
+                      printf(":\n\n@enumerate \n");
+                      strcpy(buffer,yytext);
+                      len = strlen(buffer);
+                      for(loop=len; loop > 0;loop--){
+                        if(buffer[loop] == '\n')
+                           break;
+                      }
+                      yyless(loop);
+                      statep++;
+                      states[statep] = ENUM;
+                      BEGIN(ENUM);
+                    }
+
+<ENUM>"@"           printf("@@");
+<ENUM>":"\n+"     "[^0-9]    {
+                    printf(":\n\n@example\n");
+                    statep++;
+                    states[statep] = EXAMPLE;
+                    BEGIN(EXAMPLE); 
+                  }
+
+
+<ENUM>\n[ \t]+[0-9]+"." {
+                    printf("\n\n@item ");
+                   }
+<ENUM>^[^ ] | 
+<ENUM>\n\n\n[ \t]+[^0-9] {
+                    printf("\n\n@end enumerate\n\n");
+                    statep--;
+                    BEGIN(states[statep]);
+                  }
+ 
+ /* 
+  * reproduce one kind of @itemize list
+  */
+
+":"\n+":"         {
+                    int loop;
+                    int len;
+
+                    printf(":\n\n@itemize @bullet \n");
+                    yyless(2);
+                    statep++;
+                    states[statep] = LITEM2;
+                    BEGIN(LITEM2);
+                  }
+<LITEM2>^":".+":" {
+                    (void)check_and_convert(&yytext[1]);
+                    buffer[strlen(buffer)-1]='\0';
+                    printf("@item @b{%s:}\n",buffer);
+                  }
+ 
+<LITEM2>\n\n\n+[^:\n] {
+                    printf("\n\n@end itemize\n\n");
+                    ECHO;
+                    statep--;
+                    BEGIN(states[statep]);
+                  }
+ 
+ /*
+  * create a list out of the revision history part.
+  * We need the "Version" for this because it 
+  * clashes with other rules otherwise.
+  */
+
+:[\n]+"Version"[^:\n*]+":" {
+                    int loop;
+                    int len;
+
+                    printf(":\n\n@itemize @bullet \n");
+                    strcpy(buffer,yytext);
+                    len = strlen(buffer);
+                    for(loop=len; loop > 0;loop--){
+                      if(buffer[loop] == '\n')
+                         break;
+                    }
+                    yyless(loop);
+                    statep++;
+                    states[statep] = LITEM;
+                    BEGIN(LITEM);
+                  }
+<LITEM>^.+":"     {
+                    (void)check_and_convert(yytext);
+                    buffer[strlen(buffer)-1]='\0';
+                    printf("@item @b{%s}\n\n",buffer);
+                  }
+ 
+<LITEM>^[^:\n]+\n\n[^:\n]+\n  {
+                    int loop;
+
+                    strcpy(buffer,yytext);
+                    for(loop=0; buffer[loop] != '\n'; loop++);
+                    buffer[loop] = '\0';
+                    printf("%s\n",buffer);
+                    printf("@end itemize\n\n");
+                    printf("%s",&buffer[loop+1]);
+                    statep--;
+                    BEGIN(states[statep]);
+                  }
+ 
+ /*
+  * reproduce @itemize @bullet lists
+  */
+
+":"\n[ ]*"*"      {
+                    int loop;
+                    int len;
+
+                    printf(":\n\n@itemize @bullet \n");
+                    len = strlen(buffer);
+                    for(loop=0; loop < len;loop++){
+                      if(buffer[loop] == '\n')
+                         break;
+                    }
+                    yyless((len-loop)+2);
+                    statep++;
+                    states[statep] = BITEM;
+                    BEGIN(BITEM);
+                  }
+
+<BITEM>^" "*"*"   {
+                    printf("@item");
+                    statep++;
+                    states[statep] = BITEM_ITEM;
+                    BEGIN(BITEM_ITEM);
+                  }
+<BITEM>"@"          printf("@@");
+<BITEM>^\n        { 
+                    printf("@end itemize\n\n");
+                    statep--;
+                    BEGIN(states[statep]);
+                  } 
+<BITEM_ITEM>[^\:]* {
+                     printf(" @b{%s}\n\n",check_and_convert(yytext));
+                   }
+<BITEM_ITEM>":"   { 
+                    statep--; 
+                    BEGIN(states[statep]);
+                  }
+
+ /* 
+  * recreate @chapter, @section etc.
+  */
+
+^:[^:]*           { 
+                    (void)check_and_convert(&yytext[1]); 
+                    statep++;
+                    states[statep] = HEADING;
+                    BEGIN(HEADING); 
+                  }
+<HEADING>:[^\n]   {
+                    printf("@item @b{%s}\n",buffer); 
+                    write_underline(strlen(buffer),6,'~');
+                    statep--; 
+                    BEGIN(states[statep]);
+                  }
+<HEADING>:\n"*"*  { 
+                    if(need_closing == TRUE){
+                      printf("@end table\n\n\n");
+                      need_closing = FALSE;
+                    }
+                    printf("@chapter %s\n",buffer); 
+                    write_underline(strlen(buffer),9,'*');
+                    statep--; 
+                    BEGIN(states[statep]);
+                  }
+<HEADING>:\n"="*  { 
+                    if(need_closing == TRUE){
+                     printf("@end table\n\n\n");
+                      need_closing = FALSE;
+                    }
+                    printf("@section %s\n",buffer); 
+                    write_underline(strlen(buffer),9,'=');
+                    statep--; 
+                    BEGIN(states[statep]);
+                  }
+<HEADING>"@"        printf("@@");
+<HEADING>:\n"-"*  { 
+                    if(need_closing == TRUE){
+                      printf("@end table\n\n\n");
+                      need_closing = FALSE;
+                    }
+                    printf("@subsection %s\n",buffer); 
+                    write_underline(strlen(buffer),12,'-');
+                    statep--; 
+                    BEGIN(states[statep]);
+                  }
+
+ /*
+  * recreate @example text
+  */
+
+^"     "          {
+                    printf("@example\n");
+                    statep++;
+                    states[statep] = EXAMPLE;
+                    BEGIN(EXAMPLE); 
+                  }
+<EXAMPLE>^"     "
+.                 ECHO;
+
+%%
+
+/*
+ * initialise and go.
+ */
+
+int main(int argc, char *argv[])
+{
+  states[0] = INITIAL;
+  statep    = 0;
+  print_header();
+  yylex();
+  print_trailer();
+  return(0);
+}
+
+
+

examples/manual/myname.lex

@@ -0,0 +1,15 @@
+/*
+ *
+ * myname.lex : A sample Flex program
+ *              that does token replacement.
+ */
+
+%%
+
+%NAME     { printf("%s",getenv("LOGNAME")); }
+%HOST     { printf("%s",getenv("HOST"));    }
+%HOSTTYPE { printf("%s",getenv("HOSTTYPE"));}
+%HOME     { printf("%s",getenv("HOME"));    }
+
+%%
+

examples/manual/myname.txt

@@ -0,0 +1,6 @@
+Hello, my name name is %NAME. Actually 
+"%NAME" isn't my real name, it is the
+alias I use when I'm on %HOST, which
+is the %HOSTTYPE I use. My HOME 
+directory is %HOME. 
+

examples/manual/myname2.lex

@@ -0,0 +1,19 @@
+/*
+ * myname2.lex : A sample Flex program
+ *               that does token replacement.                      
+ */
+
+%{
+#include <stdio.h>
+%}
+
+%x STRING
+%%
+\"                ECHO; BEGIN(STRING); 
+<STRING>[^\"\n]*  ECHO;
+<STRING>\"        ECHO; BEGIN(INITIAL);
+
+%NAME     { printf("%s",getenv("LOGNAME")); }
+%HOST     { printf("%s",getenv("HOST"));    }
+%HOSTTYPE { printf("%s",getenv("HOSTTYPE"));}
+%HOME     { printf("%s",getenv("HOME"));    }

examples/manual/numbers.lex

@@ -0,0 +1,145 @@
+/*
+ * numbers.lex : An example of the definitions and techniques
+ *               for scanning numbers
+ */
+
+%{
+#include <stdio.h>
+
+#define UNSIGNED_LONG_SYM   1
+#define SIGNED_LONG_SYM     2
+#define UNSIGNED_SYM        3
+#define SIGNED_SYM          4
+#define LONG_DOUBLE_SYM     5
+#define FLOAT_SYM           6
+
+union _yylval {
+  long double    ylong_double;
+  float          yfloat; 
+  unsigned long  yunsigned_long;
+  unsigned       yunsigned;
+  long           ysigned_long;
+  int            ysigned;
+} yylval;
+
+%}
+
+digit             [0-9]
+hex_digit         [0-9a-fA-F]
+oct_digit         [0-7]
+
+exponent          [eE][+-]?{digit}+
+i                 {digit}+
+float_constant    ({i}\.{i}?|{i}?\.{i}){exponent}?
+hex_constant      0[xX]{hex_digit}+
+oct_constant      0{oct_digit}*
+int_constant      {digit}+
+long_ext          [lL]
+unsigned_ext      [uU]
+float_ext         [fF]
+ulong_ext         {long_ext}{unsigned_ext}|{unsigned_ext}{long_ext}
+
+%%
+
+{hex_constant}{ulong_ext} {  /* we need to skip the "0x" part */
+                             sscanf(&yytext[2],"%lx",&yylval.yunsigned_long); 
+                             return(UNSIGNED_LONG_SYM);
+                          }
+{hex_constant}{long_ext}  {  
+                             sscanf(&yytext[2],"%lx",&yylval.ysigned_long); 
+                             return(SIGNED_LONG_SYM);
+                          }
+{hex_constant}{unsigned_ext}  { 
+                             sscanf(&yytext[2],"%x",&yylval.yunsigned); 
+                             return(UNSIGNED_SYM);
+                          }
+{hex_constant}            { /* use %lx to protect against overflow */
+                             sscanf(&yytext[2],"%lx",&yylval.ysigned_long); 
+                             return(SIGNED_LONG_SYM);
+                          }
+{oct_constant}{ulong_ext} {
+                             sscanf(yytext,"%lo",&yylval.yunsigned_long); 
+                             return(UNSIGNED_LONG_SYM);
+                          }
+{oct_constant}{long_ext}  {
+                             sscanf(yytext,"%lo",&yylval.ysigned_long); 
+                             return(SIGNED_LONG_SYM);
+                          }
+{oct_constant}{unsigned_ext}  {
+                             sscanf(yytext,"%o",&yylval.yunsigned); 
+                             return(UNSIGNED_SYM);
+                          }
+{oct_constant}            { /* use %lo to protect against overflow */
+                             sscanf(yytext,"%lo",&yylval.ysigned_long); 
+                             return(SIGNED_LONG_SYM);
+                          }
+{int_constant}{ulong_ext} {
+                             sscanf(yytext,"%ld",&yylval.yunsigned_long); 
+                             return(UNSIGNED_LONG_SYM);
+                          }
+{int_constant}{long_ext}  {
+                             sscanf(yytext,"%ld",&yylval.ysigned_long); 
+                             return(SIGNED_LONG_SYM);
+                          }
+{int_constant}{unsigned_ext}  {
+                             sscanf(yytext,"%d",&yylval.yunsigned); 
+                             return(UNSIGNED_SYM);
+                          }
+{int_constant}            { /* use %ld to protect against overflow */
+                             sscanf(yytext,"%ld",&yylval.ysigned_long); 
+                             return(SIGNED_LONG_SYM);
+                          }
+{float_constant}{long_ext}  {
+                             sscanf(yytext,"%lf",&yylval.ylong_double); 
+                             return(LONG_DOUBLE_SYM);
+                          }
+{float_constant}{float_ext}  {
+                             sscanf(yytext,"%f",&yylval.yfloat); 
+                             return(FLOAT_SYM);
+                          }
+{float_constant}          { /* use %lf to protect against overflow */
+                             sscanf(yytext,"%lf",&yylval.ylong_double); 
+                             return(LONG_DOUBLE_SYM);
+                          }
+%%
+
+int main(void)
+{
+  int code;
+
+  while((code = yylex())){
+    printf("yytext          : %s\n",yytext);
+    switch(code){
+    case UNSIGNED_LONG_SYM:
+       printf("Type of number  : UNSIGNED LONG\n");
+       printf("Value of number : %lu\n",yylval.yunsigned_long);
+       break;
+    case SIGNED_LONG_SYM:  
+       printf("Type of number  : SIGNED LONG\n");
+       printf("Value of number : %ld\n",yylval.ysigned_long);
+       break;
+    case UNSIGNED_SYM:     
+       printf("Type of number  : UNSIGNED\n");
+       printf("Value of number : %u\n",yylval.yunsigned);
+       break;
+    case SIGNED_SYM:       
+       printf("Type of number  : SIGNED\n");
+       printf("Value of number : %d\n",yylval.ysigned);
+       break;
+    case LONG_DOUBLE_SYM:  
+       printf("Type of number  : LONG DOUBLE\n");
+       printf("Value of number : %lf\n",yylval.ylong_double);
+       break;
+    case FLOAT_SYM:        
+       printf("Type of number  : FLOAT\n");
+       printf("Value of number : %f\n",yylval.yfloat);
+       break;
+    default:
+       printf("Type of number  : UNDEFINED\n");
+       printf("Value of number : UNDEFINED\n");
+       break;
+    }
+  }
+  return(0);
+}
+

examples/manual/pas_include.lex

@@ -0,0 +1,78 @@
+/*
+ * eof_rules.lex : An example of using multiple buffers
+ *                 EOF rules, and start states
+ */
+
+%{
+                              
+#define MAX_NEST 10                   
+
+YY_BUFFER_STATE include_stack[MAX_NEST];
+int             include_count = -1;
+
+%}
+
+
+%x INCLUDE
+%x COMMENT
+
+
+%%
+
+"{"                          BEGIN(COMMENT);
+
+<COMMENT>"}"                 BEGIN(INITIAL); 
+<COMMENT>"$include"[ \t]*"(" BEGIN(INCLUDE);
+<COMMENT>[ \t]*              /* skip whitespace */
+
+<INCLUDE>")"                 BEGIN(COMMENT); 
+<INCLUDE>[ \t]*              /* skip whitespace */
+<INCLUDE>[^ \t\n() ]+ {      /* get the include file name */
+          if ( include_count >= MAX_NEST){
+             fprintf( stderr, "Too many include files" );
+             exit( 1 );
+          }
+
+          include_stack[++include_count] = YY_CURRENT_BUFFER;
+
+          yyin = fopen( yytext, "r" );
+          if ( ! yyin ){
+             fprintf( stderr, "Unable to open %s",yytext);
+             exit( 1 );
+          }
+
+          yy_switch_to_buffer(yy_create_buffer(yyin,YY_BUF_SIZE));
+
+          BEGIN(INITIAL);
+        }
+<INCLUDE><<EOF>> 
+        {
+            fprintf( stderr, "EOF in include" );
+            yyterminate();
+        }
+<COMMENT><<EOF>> 
+        {
+            fprintf( stderr, "EOF in comment" );
+            yyterminate();
+        }
+<<EOF>> {
+          if ( include_count <= 0 ){
+            yyterminate();
+          } else {
+            yy_delete_buffer(include_stack[include_count--] );
+            yy_switch_to_buffer(include_stack[include_count] );
+            BEGIN(INCLUDE);
+          }
+        }
+[a-z]+               ECHO;
+.|\n                 ECHO;
+
+
+
+
+
+
+
+
+
+

examples/manual/pascal.lex

@@ -0,0 +1,120 @@
+/*
+ * pascal.lex: An example PASCAL scanner
+ *
+ */
+
+%{
+#include <stdio.h>
+#include "y.tab.h"
+
+int line_number = 0;
+
+void yyerror(char *message);
+
+%}
+
+%x COMMENT1 COMMENT2
+
+white_space       [ \t]*
+digit             [0-9]
+alpha             [A-Za-z_]
+alpha_num         ({alpha}|{digit})
+hex_digit         [0-9A-F]
+identifier        {alpha}{alpha_num}*
+unsigned_integer  {digit}+
+hex_integer       ${hex_digit}{hex_digit}*
+exponent          e[+-]?{digit}+
+i                 {unsigned_integer}
+real              ({i}\.{i}?|{i}?\.{i}){exponent}?
+string            \'([^'\n]|\'\')+\'
+bad_string        \'([^'\n]|\'\')+
+
+%%
+
+"{"                  BEGIN(COMMENT1);
+<COMMENT1>[^}\n]+
+<COMMENT1>\n            ++line_number;
+<COMMENT1><<EOF>>    yyerror("EOF in comment");
+<COMMENT1>"}"        BEGIN(INITIAL);
+
+"(*"                 BEGIN(COMMENT2);
+<COMMENT2>[^)*\n]+
+<COMMENT2>\n            ++line_number;
+<COMMENT2><<EOF>>    yyerror("EOF in comment");
+<COMMENT2>"*)"       BEGIN(INITIAL);
+<COMMENT2>[*)]
+
+ /* note that FILE and BEGIN are already 
+  * defined in FLEX or C so they can't  
+  * be used. This can be overcome in                               
+  * a cleaner way by defining all the
+  * tokens to start with TOK_ or some
+  * other prefix.
+  */
+
+and                  return(AND);
+array                return(ARRAY);
+begin                return(_BEGIN);
+case                 return(CASE);
+const                return(CONST);
+div                  return(DIV);
+do                   return(DO);
+downto               return(DOWNTO);
+else                 return(ELSE);
+end                  return(END);
+file                 return(_FILE);
+for                  return(FOR);
+function             return(FUNCTION);
+goto                 return(GOTO);
+if                   return(IF);
+in                   return(IN);
+label                return(LABEL);
+mod                  return(MOD);
+nil                  return(NIL);
+not                  return(NOT);
+of                   return(OF);
+packed               return(PACKED);
+procedure            return(PROCEDURE);
+program              return(PROGRAM);
+record               return(RECORD);
+repeat               return(REPEAT);
+set                  return(SET);
+then                 return(THEN);
+to                   return(TO);
+type                 return(TYPE);
+until                return(UNTIL);
+var                  return(VAR);
+while                return(WHILE);
+with                 return(WITH);
+
+"<="|"=<"            return(LEQ);
+"=>"|">="            return(GEQ);
+"<>"                 return(NEQ);
+"="                  return(EQ);
+
+".."                 return(DOUBLEDOT);
+
+{unsigned_integer}   return(UNSIGNED_INTEGER);
+{real}               return(REAL);
+{hex_integer}        return(HEX_INTEGER);
+{string}             return{STRING};
+{bad_string}         yyerror("Unterminated string");
+
+{identifier}         return(IDENTIFIER);
+
+[*/+\-,^.;:()\[\]]   return(yytext[0]);
+
+{white_space}        /* do nothing */
+\n                   line_number += 1;
+.                    yyerror("Illegal input");
+
+%%
+
+void yyerror(char *message)
+{
+   fprintf(stderr,"Error: \"%s\" in line %d. Token = %s\n",
+           message,line_number,yytext);
+   exit(1);
+}
+
+

examples/manual/reject.lex

@@ -0,0 +1,12 @@
+/* 
+ * reject.lex: An example of REJECT and unput()
+ *             misuse.
+ */
+
+%%
+UNIX       { 
+                unput('U'); unput('N'); unput('G'); unput('\0');
+                REJECT;
+           } 
+GNU        printf("GNU is Not Unix!\n"); 
+%%

examples/manual/replace.lex

@@ -0,0 +1,33 @@
+/*
+ * replace.lex : A simple filter for renaming
+ *               parts of flex of bison generated
+ *               scanners or parsers.
+ */
+
+%{
+#include <stdio.h>
+
+char lower_replace[1024];
+char upper_replace[1024];
+
+%}
+
+%%
+
+"yy"   printf("%s",lower_replace); 
+"YY"   printf("%s",upper_replace);
+,      ECHO;
+
+%%
+
+int main(int argc, char *argv[])
+{
+   if(argc < 2){
+     printf("Usage %s lower UPPER\n",argv[0]);
+     exit(1);
+   }
+   strcpy(lower_replace,argv[1]);
+   strcpy(upper_replace,argv[2]);
+   yylex();
+   return(0);
+}

examples/manual/string1.lex

@@ -0,0 +1,98 @@
+/* 
+ * string1.lex: Handling strings by using input()
+ */
+
+%{
+#include <ctype.h>
+#include <malloc.h>
+
+#define ALLOC_SIZE 32 /* for (re)allocating the buffer */                   
+
+#define isodigit(x) ((x) >= '0' && (x) <= '7') 
+#define hextoint(x) (isdigit((x)) ? (x) - '0' : ((x) - 'A') + 10)  
+
+void yyerror(char *message)
+{
+  printf("\nError: %s\n",message);
+}
+
+%}
+
+%%
+
+\" {
+     int  inch,count,max_size;
+     char *buffer;
+     int  temp;
+
+     buffer   = malloc(ALLOC_SIZE);
+     max_size = ALLOC_SIZE;
+     inch     = input();
+     count    = 0;
+     while(inch != EOF && inch != '"' && inch != '\n'){
+        if(inch == '\\'){
+          inch = input();
+          switch(inch){
+          case '\n': inch = input(); break;
+          case 'b' : inch = '\b';    break;
+          case 't' : inch = '\t';    break;
+          case 'n' : inch = '\n';    break;
+          case 'v' : inch = '\v';    break;
+          case 'f' : inch = '\f';    break;
+          case 'r' : inch = '\r';    break;
+          case 'X' :
+          case 'x' : inch = input();
+                     if(isxdigit(inch)){
+                       temp = hextoint(toupper(inch));
+                       inch = input();
+                       if(isxdigit(inch)){
+                         temp = (temp << 4) + hextoint(toupper(inch));
+                       } else {
+                         unput(inch);
+                       }
+                       inch = temp; 
+                     } else {
+                       unput(inch);
+                       inch = 'x';
+                     }
+             break;
+          default:
+             if(isodigit(inch)){
+                temp = inch - '0';
+                inch = input();
+                if(isodigit(inch)){
+                  temp = (temp << 3) + (inch - '0');
+                } else {
+                  unput(inch);
+                  goto done;
+                }
+                inch = input();
+                if(isodigit(inch)){
+                  temp = (temp << 3) + (inch - '0');
+                } else {
+                  unput(inch);
+                }
+             done:
+                inch = temp; 
+             }
+          } 
+        }
+        buffer[count++] = inch;
+        if(count >= max_size){
+           buffer = realloc(buffer,max_size + ALLOC_SIZE);
+           max_size += ALLOC_SIZE;
+        }           
+        inch = input();
+     }
+     if(inch == EOF || inch == '\n'){
+       yyerror("Unterminated string.");
+     }
+     buffer[count] = '\0';
+     printf("String = \"%s\"\n",buffer);
+     free(buffer);
+   }
+.
+\n
+%%
+
+

examples/manual/string2.lex

@@ -0,0 +1,94 @@
+/*
+ * string2.lex: An example of using scanning strings
+ *              by using start states.
+ */
+
+%{
+#include <ctype.h>
+#include <malloc.h>
+
+#define isodigit(x) ((x) >= '0' && (x) <= '7') 
+#define hextoint(x) (isdigit((x)) ? (x) - '0' : ((x) - 'A') + 10)  
+
+char *buffer      = NULL;
+int  buffer_size  = 0;
+
+void yyerror(char *message)
+{
+  printf("\nError: %s\n",message);
+}
+
+%}
+
+%x STRING
+
+hex (x|X)[0-9a-fA-F]{1,2}
+oct [0-7]{1,3}
+
+%%
+
+\"                 { 
+                     buffer      = malloc(1); 
+                     buffer_size = 1; strcpy(buffer,"");
+                     BEGIN(STRING);
+                   }
+<STRING>\n         {
+                      yyerror("Unterminated string");       
+                      free(buffer);
+                      BEGIN(INITIAL);
+                   }
+<STRING><<EOF>>    {
+                      yyerror("EOF in string");       
+                      free(buffer);
+                      BEGIN(INITIAL);
+                   }
+<STRING>[^\\\n"]   {
+                     buffer = realloc(buffer,buffer_size+yyleng+1);
+                     buffer_size += yyleng;
+                     strcat(buffer,yytext);
+                   }
+<STRING>\\\n       /* ignore this */
+<STRING>\\{hex}    {
+                     int temp =0,loop = 0;
+                     for(loop=yyleng-2; loop>0; loop--){
+                       temp  <<= 4;
+                       temp  += hextoint(toupper(yytext[yyleng-loop]));
+                     } 
+                     buffer = realloc(buffer,buffer_size+1);
+                     buffer[buffer_size-1] = temp;
+                     buffer[buffer_size]   = '\0';
+                     buffer_size += 1;
+                   }
+<STRING>\\{oct}    {
+                     int temp =0,loop = 0;
+                     for(loop=yyleng-1; loop>0; loop--){
+                       temp  <<= 3;
+                       temp  += (yytext[yyleng-loop] - '0');
+                     } 
+                     buffer = realloc(buffer,buffer_size+1);
+                     buffer[buffer_size-1] = temp;
+                     buffer[buffer_size]   = '\0';
+                     buffer_size += 1;
+                   }
+<STRING>\\[^\n]    {
+                     buffer = realloc(buffer,buffer_size+1);
+                     switch(yytext[yyleng-1]){
+                     case 'b' : buffer[buffer_size-1] = '\b';  break;
+                     case 't' : buffer[buffer_size-1] = '\t';  break;
+                     case 'n' : buffer[buffer_size-1] = '\n';  break;
+                     case 'v' : buffer[buffer_size-1] = '\v';  break;
+                     case 'f' : buffer[buffer_size-1] = '\f';  break;
+                     case 'r' : buffer[buffer_size-1] = '\r';  break;
+                     default  : buffer[buffer_size-1] = yytext[yyleng-1];
+                     }
+                     buffer[buffer_size] = '\0';
+                     buffer_size += 1;
+                   }
+<STRING>\"         {
+                     printf("string = \"%s\"",buffer); 
+                     free(buffer);
+                     BEGIN(INITIAL);
+                   }
+%%
+
+

examples/manual/strtest.dat

@@ -0,0 +1,21 @@
+"This is a string"
+"The next string will be empty"
+""
+"This is a string with a \b(\\b) in it"
+"This is a string with a \t(\\t) in it"
+"This is a string with a \n(\\n) in it"
+"This is a string with a \v(\\v) in it"
+"This is a string with a \f(\\f) in it"
+"This is a string with a \r(\\r) in it"
+"This is a string with a \"(\\\") in it"
+"This is a string with a \z(\\z) in it"
+"This is a string with a \X4a(\\X4a) in it"
+"This is a string with a \x4a(\\x4a) in it"
+"This is a string with a \x7(\\x7) in it"
+"This is a string with a \112(\\112) in it"
+"This is a string with a \043(\\043) in it"
+"This is a string with a \7(\\7) in it"
+"This is a multi-line \
+string"
+"This is an unterminated string
+"This is an unterminated string too

examples/manual/unput.lex

@@ -0,0 +1,32 @@
+/*
+ * unput.l : An example of what *not*
+ *           to do with unput().
+ */
+
+
+%{
+#include <stdio.h>
+
+void putback_yytext(void);
+%}
+
+%%
+foobar   putback_yytext();
+raboof   putback_yytext();
+%%
+
+void putback_yytext(void)
+{
+    int   i;
+    int   l = strlen(yytext);
+    char  buffer[YY_BUF_SIZE];
+
+    strcpy(buffer,yytext);
+    printf("Got: %s\n",yytext);
+    for(i=0; i<l; i++){
+       unput(buffer[i]);
+    }
+}
+
+ 
+           

examples/manual/user_act.lex

@@ -0,0 +1,31 @@
+%{
+
+#include <ctype.h>
+
+void user_action(void);
+
+#define YY_USER_ACTION user_action();
+
+%}
+
+%%
+
+.*         ECHO;
+\n         ECHO;
+
+%%
+
+void user_action(void)
+{
+  int loop;
+  
+  for(loop=0; loop<yyleng; loop++){
+    if(islower(yytext[loop])){
+       yytext[loop] = toupper(yytext[loop]);
+    }
+  }
+}
+
+
+
+

examples/manual/userinit.lex

@@ -0,0 +1,30 @@
+%{
+#define YY_USER_INIT open_input_file()
+
+extern FILE *yyin;
+
+void open_input_file(void)
+{
+  char *file_name,buffer[1024];
+
+  yyin      = NULL; 
+
+  while(yyin == NULL){
+    printf("Input file: ");
+    file_name = fgets(buffer,1024,stdin);
+    if(file_name){
+      file_name[strlen(file_name)-1] = '\0';
+      yyin = fopen(file_name,"r");
+      if(yyin == NULL){
+        printf("Unable to open \"%s\"\n",file_name);
+      }
+    } else {
+      printf("stdin\n");
+      yyin = stdin;
+      break;
+    }
+  }
+}
+
+%}
+%%

examples/manual/wc.lex

@@ -0,0 +1,122 @@
+%{
+
+/*
+ * wc.lex : A simple example of using FLEX
+ *          to create a wc-like utility.
+ *
+ *	    See MISC/fastwc/ in the flex distribution for examples
+ *	    of how to write this scanner for maximum performance.
+ */   
+
+int  numchars = 0;
+int  numwords = 0;
+int  numlines = 0;
+int  totchars = 0;
+int  totwords = 0;
+int  totlines = 0;
+
+/*
+ * rules start from here
+ */
+
+%}
+
+%%
+
+[\n]        { numchars++;  numlines++;         }
+[\r]        { numchars++;                      }
+[^ \t\n]+   { numwords++;  numchars += yyleng; }
+.           { numchars++;                      }
+
+%%
+
+/*
+ * additional C code start from here. This supplies
+ * all the argument processing etc.
+ */
+
+int main(int argc, char *argv[])
+{
+  int  loop,first=1;
+  int  lflag = 0; /* 1 if we count # of lines      */
+  int  wflag = 0; /* 1 if we count # of words      */
+  int  cflag = 0; /* 1 if we count # of characters */
+  int  fflag = 0; /* 1 if we have a file name      */
+
+  for(loop=1; loop<argc; loop++){
+     if(argv[loop][0] == '-'){
+	switch(argv[loop][1]){
+	case 'l':
+	   lflag = 1;
+	   break;
+	case 'w':
+	   wflag = 1;
+	   break;
+	case 'c':
+	   cflag = 1;
+	   break;
+	default:
+	   fprintf(stderr,"unknown option -%c\n",
+                   argv[loop][1]);
+	}
+     }
+  }
+  if(lflag == 0 && wflag == 0 && cflag == 0){
+    lflag = wflag = cflag = 1; /* default to all on */
+  }
+
+  for(loop=1; loop<argc; loop++){
+    if(argv[loop][0] != '-'){
+      fflag = 1;
+      numlines = numchars = numwords = 0;  
+      if((yyin = fopen(argv[loop],"rb")) != NULL){
+        if(first){
+          first = 0;
+	} else {
+          YY_NEW_FILE;
+	}
+        (void) yylex();
+        fclose(yyin);
+        totwords += numwords;
+        totchars += numchars;
+        totlines += numlines;
+        printf("file  : %25s :",argv[loop]) ;
+        if(lflag){
+          fprintf(stdout,"lines %5d ",numlines); 
+        }
+        if(cflag){
+          fprintf(stdout,"characters %5d ",numchars); 
+        }
+        if(wflag){
+          fprintf(stdout,"words %5d ",numwords); 
+        }
+        fprintf(stdout,"\n");
+      }else{
+        fprintf(stderr,"wc : file not found %s\n",argv[loop]);
+      } 
+    }
+  }
+  if(!fflag){
+    fprintf(stderr,"usage : wc [-l -w -c] file [file...]\n");
+    fprintf(stderr,"-l = count lines\n");
+    fprintf(stderr,"-c = count characters\n");
+    fprintf(stderr,"-w = count words\n");
+    exit(1);
+  }
+  for(loop=0;loop<79; loop++){
+    fprintf(stdout,"-");
+  }
+  fprintf(stdout,"\n");
+  fprintf(stdout,"total : %25s  ","") ;
+  if(lflag){
+    fprintf(stdout,"lines %5d ",totlines); 
+  }
+  if(cflag){
+    fprintf(stdout,"characters %5d ",totchars); 
+  }
+  if(wflag){
+     fprintf(stdout,"words %5d ",totwords); 
+  }
+  fprintf(stdout,"\n");
+  return(0);
+}

examples/manual/yymore.lex

@@ -0,0 +1,29 @@
+/*
+ * yymore.lex: An example of using yymore()
+ *             to good effect.
+ */
+
+%{
+#include <memory.h>
+
+void yyerror(char *message)
+{
+  printf("Error: %s\n",message);
+}
+
+%}
+
+%x STRING
+
+%%
+\"   BEGIN(STRING);
+
+<STRING>[^\\\n"]*  yymore();
+<STRING><<EOF>>    yyerror("EOF in string.");       BEGIN(INITIAL);
+<STRING>\n         yyerror("Unterminated string."); BEGIN(INITIAL);
+<STRING>\\\n       yymore();
+<STRING>\"        {
+                     yytext[yyleng-1] = '\0';
+                     printf("string = \"%s\"",yytext); BEGIN(INITIAL);
+                  }
+%%

examples/manual/yymore2.lex

@@ -0,0 +1,33 @@
+/*
+ * yymore.lex: An example of using yymore()
+ *             to good effect.
+ */
+
+%{
+#include <memory.h>
+
+void yyerror(char *message)
+{
+  printf("Error: %s\n",message);
+}
+
+%}
+
+%x STRING
+
+%%
+\"   BEGIN(STRING);
+
+<STRING>[^\\\n"]*  yymore();
+<STRING><<EOF>>    yyerror("EOF in string.");       BEGIN(INITIAL);
+<STRING>\n         yyerror("Unterminated string."); BEGIN(INITIAL);
+<STRING>\\\n      {
+                     bcopy(yytext,yytext+2,yyleng-2);
+                     yytext += 2; yyleng -= 2;
+                     yymore();
+                  }
+<STRING>\"        {
+                     yyleng -= 1; yytext[yyleng] = '\0';
+                     printf("string = \"%s\"",yytext); BEGIN(INITIAL);
+                  }
+%%

examples/manual/yymoretest.dat

@@ -0,0 +1,7 @@
+"This is a test \
+of multi-line string \
+scanning in flex. \
+This may be breaking some law \
+of usage though..."
+
+

examples/testxxLexer.l

@@ -0,0 +1,58 @@
+	// An example of using the flex C++ scanner class.
+
+%option C++ noyywrap
+
+%{
+int mylineno = 0;
+%}
+
+string	\"[^\n"]+\"
+
+ws	[ \t]+
+
+alpha	[A-Za-z]
+dig	[0-9]
+name	({alpha}|{dig}|\$)({alpha}|{dig}|\_|\.|\-|\/|\$)*
+num1	[-+]?{dig}+\.?([eE][-+]?{dig}+)?
+num2	[-+]?{dig}*\.{dig}+([eE][-+]?{dig}+)?
+number	{num1}|{num2}
+
+%%
+
+{ws}	/* skip blanks and tabs */
+
+"/*"		{
+		int c;
+
+		while((c = yyinput()) != 0)
+			{
+			if(c == '\n')
+				++mylineno;
+
+			else if(c == '*')
+				{
+				if((c = yyinput()) == '/')
+					break;
+				else
+					unput(c);
+				}
+			}
+		}
+
+{number}	std::cout << "number " << YYText() << '\n';
+
+\n		mylineno++;
+
+{name}		std::cout << "name " << YYText() << '\n';
+
+{string}	std::cout << "string " << YYText() << '\n';
+
+%%
+
+int main( int /* argc */, char** /* argv */ )
+	{
+	FlexLexer* lexer = new yyFlexLexer;
+	while(lexer->yylex() != 0)
+		;
+	return 0;
+	}

lib/.gitignore

@@ -0,0 +1,3 @@
+*.la
+*.lo
+*.o

lib/malloc.c

@@ -0,0 +1,17 @@
+     #include <config.h>
+     #undef malloc
+     
+     #include <sys/types.h>
+     
+     void *malloc ();
+     
+     /* Allocate an N-byte block of memory from the heap.
+        If N is zero, allocate a 1-byte block.  */
+     
+     void *
+     rpl_malloc (size_t n)
+     {
+       if (n == 0)
+         n = 1;
+       return malloc (n);
+     }

lib/realloc.c

@@ -0,0 +1,29 @@
+#include <config.h>
+#undef realloc
+#undef malloc
+
+#include <stdlib.h>
+
+#include <errno.h>
+
+void * rpl_realloc (void *p, size_t n)
+{
+  void *result;
+
+  if (n == 0)
+    {
+      n = 1;
+    }
+
+  if (p == NULL)
+    {
+      result = malloc (n);
+    }
+  else
+    result = realloc (p, n);
+
+  if (result == NULL)
+    errno = ENOMEM;
+
+  return result;
+}

m4/ax_prog_cc_for_build.m4

@@ -0,0 +1,125 @@
+# ===========================================================================
+#   http://www.gnu.org/software/autoconf-archive/ax_prog_cc_for_build.html
+# ===========================================================================
+#
+# SYNOPSIS
+#
+#   AX_PROG_CC_FOR_BUILD
+#
+# DESCRIPTION
+#
+#   This macro searches for a C compiler that generates native executables,
+#   that is a C compiler that surely is not a cross-compiler. This can be
+#   useful if you have to generate source code at compile-time like for
+#   example GCC does.
+#
+#   The macro sets the CC_FOR_BUILD and CPP_FOR_BUILD macros to anything
+#   needed to compile or link (CC_FOR_BUILD) and preprocess (CPP_FOR_BUILD).
+#   The value of these variables can be overridden by the user by specifying
+#   a compiler with an environment variable (like you do for standard CC).
+#
+#   It also sets BUILD_EXEEXT and BUILD_OBJEXT to the executable and object
+#   file extensions for the build platform, and GCC_FOR_BUILD to `yes' if
+#   the compiler we found is GCC. All these variables but GCC_FOR_BUILD are
+#   substituted in the Makefile.
+#
+# LICENSE
+#
+#   Copyright (c) 2008 Paolo Bonzini <bonzini@gnu.org>
+#
+#   Copying and distribution of this file, with or without modification, are
+#   permitted in any medium without royalty provided the copyright notice
+#   and this notice are preserved. This file is offered as-is, without any
+#   warranty.
+
+#serial 8
+
+AU_ALIAS([AC_PROG_CC_FOR_BUILD], [AX_PROG_CC_FOR_BUILD])
+AC_DEFUN([AX_PROG_CC_FOR_BUILD], [dnl
+AC_REQUIRE([AC_PROG_CC])dnl
+AC_REQUIRE([AC_PROG_CPP])dnl
+AC_REQUIRE([AC_EXEEXT])dnl
+AC_REQUIRE([AC_CANONICAL_HOST])dnl
+
+dnl Use the standard macros, but make them use other variable names
+dnl
+pushdef([ac_cv_prog_CPP], ac_cv_build_prog_CPP)dnl
+pushdef([ac_cv_prog_gcc], ac_cv_build_prog_gcc)dnl
+pushdef([ac_cv_prog_cc_works], ac_cv_build_prog_cc_works)dnl
+pushdef([ac_cv_prog_cc_cross], ac_cv_build_prog_cc_cross)dnl
+pushdef([ac_cv_prog_cc_g], ac_cv_build_prog_cc_g)dnl
+pushdef([ac_cv_exeext], ac_cv_build_exeext)dnl
+pushdef([ac_cv_objext], ac_cv_build_objext)dnl
+pushdef([ac_exeext], ac_build_exeext)dnl
+pushdef([ac_objext], ac_build_objext)dnl
+pushdef([CC], CC_FOR_BUILD)dnl
+pushdef([CPP], CPP_FOR_BUILD)dnl
+pushdef([CFLAGS], CFLAGS_FOR_BUILD)dnl
+pushdef([CPPFLAGS], CPPFLAGS_FOR_BUILD)dnl
+pushdef([LDFLAGS], LDFLAGS_FOR_BUILD)dnl
+pushdef([host], build)dnl
+pushdef([host_alias], build_alias)dnl
+pushdef([host_cpu], build_cpu)dnl
+pushdef([host_vendor], build_vendor)dnl
+pushdef([host_os], build_os)dnl
+pushdef([ac_cv_host], ac_cv_build)dnl
+pushdef([ac_cv_host_alias], ac_cv_build_alias)dnl
+pushdef([ac_cv_host_cpu], ac_cv_build_cpu)dnl
+pushdef([ac_cv_host_vendor], ac_cv_build_vendor)dnl
+pushdef([ac_cv_host_os], ac_cv_build_os)dnl
+pushdef([ac_cpp], ac_build_cpp)dnl
+pushdef([ac_compile], ac_build_compile)dnl
+pushdef([ac_link], ac_build_link)dnl
+
+save_cross_compiling=$cross_compiling
+save_ac_tool_prefix=$ac_tool_prefix
+cross_compiling=no
+ac_tool_prefix=
+
+AC_PROG_CC
+AC_PROG_CPP
+AC_EXEEXT
+
+ac_tool_prefix=$save_ac_tool_prefix
+cross_compiling=$save_cross_compiling
+
+dnl Restore the old definitions
+dnl
+popdef([ac_link])dnl
+popdef([ac_compile])dnl
+popdef([ac_cpp])dnl
+popdef([ac_cv_host_os])dnl
+popdef([ac_cv_host_vendor])dnl
+popdef([ac_cv_host_cpu])dnl
+popdef([ac_cv_host_alias])dnl
+popdef([ac_cv_host])dnl
+popdef([host_os])dnl
+popdef([host_vendor])dnl
+popdef([host_cpu])dnl
+popdef([host_alias])dnl
+popdef([host])dnl
+popdef([LDFLAGS])dnl
+popdef([CPPFLAGS])dnl
+popdef([CFLAGS])dnl
+popdef([CPP])dnl
+popdef([CC])dnl
+popdef([ac_objext])dnl
+popdef([ac_exeext])dnl
+popdef([ac_cv_objext])dnl
+popdef([ac_cv_exeext])dnl
+popdef([ac_cv_prog_cc_g])dnl
+popdef([ac_cv_prog_cc_cross])dnl
+popdef([ac_cv_prog_cc_works])dnl
+popdef([ac_cv_prog_gcc])dnl
+popdef([ac_cv_prog_CPP])dnl
+
+dnl Finally, set Makefile variables
+dnl
+BUILD_EXEEXT=$ac_build_exeext
+BUILD_OBJEXT=$ac_build_objext
+AC_SUBST(BUILD_EXEEXT)dnl
+AC_SUBST(BUILD_OBJEXT)dnl
+AC_SUBST([CFLAGS_FOR_BUILD])dnl
+AC_SUBST([CPPFLAGS_FOR_BUILD])dnl
+AC_SUBST([LDFLAGS_FOR_BUILD])dnl
+])

manual/A-Note-About-yytext-And-Memory.html

@@ -1,119 +0,0 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
-<html>
-<!-- 
-The flex manual is placed under the same licensing conditions as the
-rest of flex:
-
-Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2012
-The Flex Project.
-
-Copyright (C) 1990, 1997 The Regents of the University of California.
-All rights reserved.
-
-This code is derived from software contributed to Berkeley by
-Vern Paxson.
-
-The United States Government has rights in this work pursuant
-to contract no. DE-AC03-76SF00098 between the United States
-Department of Energy and the University of California.
-
-Redistribution and use in source and binary forms, with or without
-modification, are permitted provided that the following conditions
-are met:
-
-1. Redistributions of source code must retain the above copyright
-notice, this list of conditions and the following disclaimer.
-
-2. Redistributions in binary form must reproduce the above copyright
-notice, this list of conditions and the following disclaimer in the
-documentation and/or other materials provided with the distribution.
-
-Neither the name of the University nor the names of its contributors
-may be used to endorse or promote products derived from this software
-without specific prior written permission.
-
-THIS SOFTWARE IS PROVIDED "AS IS" AND WITHOUT ANY EXPRESS OR
-IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
-WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
-PURPOSE. -->
-<!-- Created by GNU Texinfo 6.1, http://www.gnu.org/software/texinfo/ -->
-<head>
-<title>Lexical Analysis With Flex, for Flex 2.6.2: A Note About yytext And Memory</title>
-
-<meta name="description" content="Lexical Analysis With Flex, for Flex 2.6.2: A Note About yytext And Memory">
-<meta name="keywords" content="Lexical Analysis With Flex, for Flex 2.6.2: A Note About yytext And Memory">
-<meta name="resource-type" content="document">
-<meta name="distribution" content="global">
-<meta name="Generator" content="makeinfo">
-<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
-<link href="index.html#Top" rel="start" title="Top">
-<link href="Indices.html#Indices" rel="index" title="Indices">
-<link href="index.html#SEC_Contents" rel="contents" title="Table of Contents">
-<link href="Memory-Management.html#Memory-Management" rel="up" title="Memory Management">
-<link href="Serialized-Tables.html#Serialized-Tables" rel="next" title="Serialized Tables">
-<link href="Overriding-The-Default-Memory-Management.html#Overriding-The-Default-Memory-Management" rel="prev" title="Overriding The Default Memory Management">
-<style type="text/css">
-<!--
-a.summary-letter {text-decoration: none}
-blockquote.indentedblock {margin-right: 0em}
-blockquote.smallindentedblock {margin-right: 0em; font-size: smaller}
-blockquote.smallquotation {font-size: smaller}
-div.display {margin-left: 3.2em}
-div.example {margin-left: 3.2em}
-div.lisp {margin-left: 3.2em}
-div.smalldisplay {margin-left: 3.2em}
-div.smallexample {margin-left: 3.2em}
-div.smalllisp {margin-left: 3.2em}
-kbd {font-style: oblique}
-pre.display {font-family: inherit}
-pre.format {font-family: inherit}
-pre.menu-comment {font-family: serif}
-pre.menu-preformatted {font-family: serif}
-pre.smalldisplay {font-family: inherit; font-size: smaller}
-pre.smallexample {font-size: smaller}
-pre.smallformat {font-family: inherit; font-size: smaller}
-pre.smalllisp {font-size: smaller}
-span.nolinebreak {white-space: nowrap}
-span.roman {font-family: initial; font-weight: normal}
-span.sansserif {font-family: sans-serif; font-weight: normal}
-ul.no-bullet {list-style: none}
--->
-</style>
-
-
-</head>
-
-<body lang="en">
-<a name="A-Note-About-yytext-And-Memory"></a>
-<div class="header">
-<p>
-Previous: <a href="Overriding-The-Default-Memory-Management.html#Overriding-The-Default-Memory-Management" accesskey="p" rel="prev">Overriding The Default Memory Management</a>, Up: <a href="Memory-Management.html#Memory-Management" accesskey="u" rel="up">Memory Management</a> &nbsp; [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Indices.html#Indices" title="Index" rel="index">Index</a>]</p>
-</div>
-<hr>
-<a name="A-Note-About-yytext-And-Memory-1"></a>
-<h3 class="section">21.3 A Note About yytext And Memory</h3>
-
-<a name="index-yytext_002c-memory-considerations"></a>
-
-<p>When flex finds a match, <code>yytext</code> points to the first character of the
-match in the input buffer. The string itself is part of the input buffer, and
-is <em>NOT</em> allocated separately. The value of yytext will be overwritten the next
-time yylex() is called. In short, the value of yytext is only valid from within
-the matched rule&rsquo;s action.
-</p>
-<p>Often, you want the value of yytext to persist for later processing, i.e., by a
-parser with non-zero lookahead. In order to preserve yytext, you will have to
-copy it with strdup() or a similar function. But this introduces some headache
-because your parser is now responsible for freeing the copy of yytext. If you
-use a yacc or bison parser, (commonly used with flex), you will discover that
-the error recovery mechanisms can cause memory to be leaked.
-</p>
-<p>To prevent memory leaks from strdup&rsquo;d yytext, you will have to track the memory
-somehow. Our experience has shown that a garbage collection mechanism or a
-pooled memory mechanism will save you a lot of grief when writing parsers.
-</p>
-
-
-
-</body>
-</html>

manual/About-yyscan_005ft.html

@@ -1,112 +0,0 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
-<html>
-<!-- 
-The flex manual is placed under the same licensing conditions as the
-rest of flex:
-
-Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2012
-The Flex Project.
-
-Copyright (C) 1990, 1997 The Regents of the University of California.
-All rights reserved.
-
-This code is derived from software contributed to Berkeley by
-Vern Paxson.
-
-The United States Government has rights in this work pursuant
-to contract no. DE-AC03-76SF00098 between the United States
-Department of Energy and the University of California.
-
-Redistribution and use in source and binary forms, with or without
-modification, are permitted provided that the following conditions
-are met:
-
-1. Redistributions of source code must retain the above copyright
-notice, this list of conditions and the following disclaimer.
-
-2. Redistributions in binary form must reproduce the above copyright
-notice, this list of conditions and the following disclaimer in the
-documentation and/or other materials provided with the distribution.
-
-Neither the name of the University nor the names of its contributors
-may be used to endorse or promote products derived from this software
-without specific prior written permission.
-
-THIS SOFTWARE IS PROVIDED "AS IS" AND WITHOUT ANY EXPRESS OR
-IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
-WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
-PURPOSE. -->
-<!-- Created by GNU Texinfo 6.1, http://www.gnu.org/software/texinfo/ -->
-<head>
-<title>Lexical Analysis With Flex, for Flex 2.6.2: About yyscan_t</title>
-
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-<meta name="keywords" content="Lexical Analysis With Flex, for Flex 2.6.2: About yyscan_t">
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-<link href="Reentrant-Detail.html#Reentrant-Detail" rel="up" title="Reentrant Detail">
-<link href="Reentrant-Functions.html#Reentrant-Functions" rel="next" title="Reentrant Functions">
-<link href="Extra-Data.html#Extra-Data" rel="prev" title="Extra Data">
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-</style>
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-</head>
-
-<body lang="en">
-<a name="About-yyscan_005ft"></a>
-<div class="header">
-<p>
-Previous: <a href="Extra-Data.html#Extra-Data" accesskey="p" rel="prev">Extra Data</a>, Up: <a href="Reentrant-Detail.html#Reentrant-Detail" accesskey="u" rel="up">Reentrant Detail</a> &nbsp; [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Indices.html#Indices" title="Index" rel="index">Index</a>]</p>
-</div>
-<hr>
-<a name="About-yyscan_005ft-1"></a>
-<h4 class="subsection">19.4.7 About yyscan_t</h4>
-
-<a name="index-yyscan_005ft-_0028reentrant-only_0029"></a>
-<p><code>yyscan_t</code> is defined as:
-</p>
-<div class="example">
-<pre class="verbatim">     typedef void* yyscan_t;
-</pre></div>
-
-<p>It is initialized by <code>yylex_init()</code> to point to
-an internal structure. You should never access this value
-directly. In particular, you should never attempt to free it
-(use <code>yylex_destroy()</code> instead.)
-</p>
-
-
-
-</body>
-</html>

manual/Accessor-Methods.html

@@ -1,134 +0,0 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
-<html>
-<!-- 
-The flex manual is placed under the same licensing conditions as the
-rest of flex:
-
-Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2012
-The Flex Project.
-
-Copyright (C) 1990, 1997 The Regents of the University of California.
-All rights reserved.
-
-This code is derived from software contributed to Berkeley by
-Vern Paxson.
-
-The United States Government has rights in this work pursuant
-to contract no. DE-AC03-76SF00098 between the United States
-Department of Energy and the University of California.
-
-Redistribution and use in source and binary forms, with or without
-modification, are permitted provided that the following conditions
-are met:
-
-1. Redistributions of source code must retain the above copyright
-notice, this list of conditions and the following disclaimer.
-
-2. Redistributions in binary form must reproduce the above copyright
-notice, this list of conditions and the following disclaimer in the
-documentation and/or other materials provided with the distribution.
-
-Neither the name of the University nor the names of its contributors
-may be used to endorse or promote products derived from this software
-without specific prior written permission.
-
-THIS SOFTWARE IS PROVIDED "AS IS" AND WITHOUT ANY EXPRESS OR
-IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
-WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
-PURPOSE. -->
-<!-- Created by GNU Texinfo 6.1, http://www.gnu.org/software/texinfo/ -->
-<head>
-<title>Lexical Analysis With Flex, for Flex 2.6.2: Accessor Methods</title>
-
-<meta name="description" content="Lexical Analysis With Flex, for Flex 2.6.2: Accessor Methods">
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-<link href="Extra-Data.html#Extra-Data" rel="next" title="Extra Data">
-<link href="Init-and-Destroy-Functions.html#Init-and-Destroy-Functions" rel="prev" title="Init and Destroy Functions">
-<style type="text/css">
-<!--
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-</style>
-
-
-</head>
-
-<body lang="en">
-<a name="Accessor-Methods"></a>
-<div class="header">
-<p>
-Next: <a href="Extra-Data.html#Extra-Data" accesskey="n" rel="next">Extra Data</a>, Previous: <a href="Init-and-Destroy-Functions.html#Init-and-Destroy-Functions" accesskey="p" rel="prev">Init and Destroy Functions</a>, Up: <a href="Reentrant-Detail.html#Reentrant-Detail" accesskey="u" rel="up">Reentrant Detail</a> &nbsp; [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Indices.html#Indices" title="Index" rel="index">Index</a>]</p>
-</div>
-<hr>
-<a name="Accessing-Variables-with-Reentrant-Scanners"></a>
-<h4 class="subsection">19.4.5 Accessing Variables with Reentrant Scanners</h4>
-
-<a name="index-reentrant_002c-accessor-functions"></a>
-<p>Accessor methods (get/set functions) provide access to common
-<code>flex</code> variables.
-</p>
-<p>Many scanners that you build will be part of a larger project. Portions
-of your project will need access to <code>flex</code> values, such as
-<code>yytext</code>.  In a non-reentrant scanner, these values are global, so
-there is no problem accessing them. However, in a reentrant scanner, there are no
-global <code>flex</code> values. You can not access them directly.  Instead,
-you must access <code>flex</code> values using accessor methods (get/set
-functions). Each accessor method is named <code>yyget_NAME</code> or
-<code>yyset_NAME</code>, where <code>NAME</code> is the name of the <code>flex</code>
-variable you want. For example:
-</p>
-<a name="index-accessor-functions_002c-use-of"></a>
-<div class="example">
-<pre class="verbatim">    /* Set the last character of yytext to NULL. */
-    void chop ( yyscan_t scanner )
-    {
-        int len = yyget_leng( scanner );
-        yyget_text( scanner )[len - 1] = '\0';
-    }
-</pre></div>
-
-<p>The above code may be called from within an action like this:
-</p>
-<div class="example">
-<pre class="verbatim">    %%
-    .+\n    { chop( yyscanner );}
-</pre></div>
-
-<p>You may find that <code>%option header-file</code> is particularly useful for generating
-prototypes of all the accessor functions. See <a href="Options-for-Specifying-Filenames.html#option_002dheader">option-header</a>.
-</p>
-
-
-
-</body>
-</html>

manual/Actions.html

@@ -1,392 +0,0 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
-<html>
-<!-- 
-The flex manual is placed under the same licensing conditions as the
-rest of flex:
-
-Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2012
-The Flex Project.
-
-Copyright (C) 1990, 1997 The Regents of the University of California.
-All rights reserved.
-
-This code is derived from software contributed to Berkeley by
-Vern Paxson.
-
-The United States Government has rights in this work pursuant
-to contract no. DE-AC03-76SF00098 between the United States
-Department of Energy and the University of California.
-
-Redistribution and use in source and binary forms, with or without
-modification, are permitted provided that the following conditions
-are met:
-
-1. Redistributions of source code must retain the above copyright
-notice, this list of conditions and the following disclaimer.
-
-2. Redistributions in binary form must reproduce the above copyright
-notice, this list of conditions and the following disclaimer in the
-documentation and/or other materials provided with the distribution.
-
-Neither the name of the University nor the names of its contributors
-may be used to endorse or promote products derived from this software
-without specific prior written permission.
-
-THIS SOFTWARE IS PROVIDED "AS IS" AND WITHOUT ANY EXPRESS OR
-IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
-WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
-PURPOSE. -->
-<!-- Created by GNU Texinfo 6.1, http://www.gnu.org/software/texinfo/ -->
-<head>
-<title>Lexical Analysis With Flex, for Flex 2.6.2: Actions</title>
-
-<meta name="description" content="Lexical Analysis With Flex, for Flex 2.6.2: Actions">
-<meta name="keywords" content="Lexical Analysis With Flex, for Flex 2.6.2: Actions">
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-<link href="index.html#SEC_Contents" rel="contents" title="Table of Contents">
-<link href="index.html#Top" rel="up" title="Top">
-<link href="Generated-Scanner.html#Generated-Scanner" rel="next" title="Generated Scanner">
-<link href="Matching.html#Matching" rel="prev" title="Matching">
-<style type="text/css">
-<!--
-a.summary-letter {text-decoration: none}
-blockquote.indentedblock {margin-right: 0em}
-blockquote.smallindentedblock {margin-right: 0em; font-size: smaller}
-blockquote.smallquotation {font-size: smaller}
-div.display {margin-left: 3.2em}
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--->
-</style>
-
-
-</head>
-
-<body lang="en">
-<a name="Actions"></a>
-<div class="header">
-<p>
-Next: <a href="Generated-Scanner.html#Generated-Scanner" accesskey="n" rel="next">Generated Scanner</a>, Previous: <a href="Matching.html#Matching" accesskey="p" rel="prev">Matching</a>, Up: <a href="index.html#Top" accesskey="u" rel="up">Top</a> &nbsp; [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Indices.html#Indices" title="Index" rel="index">Index</a>]</p>
-</div>
-<hr>
-<a name="Actions-1"></a>
-<h2 class="chapter">8 Actions</h2>
-
-<a name="index-actions"></a>
-<p>Each pattern in a rule has a corresponding <em>action</em>, which can be
-any arbitrary C statement.  The pattern ends at the first non-escaped
-whitespace character; the remainder of the line is its action.  If the
-action is empty, then when the pattern is matched the input token is
-simply discarded.  For example, here is the specification for a program
-which deletes all occurrences of &lsquo;<samp>zap me</samp>&rsquo; from its input:
-</p>
-<a name="index-deleting-lines-from-input"></a>
-<div class="example">
-<pre class="verbatim">    %%
-    &quot;zap me&quot;
-</pre></div>
-
-<p>This example will copy all other characters in the input to the output
-since they will be matched by the default rule.
-</p>
-<p>Here is a program which compresses multiple blanks and tabs down to a
-single blank, and throws away whitespace found at the end of a line:
-</p>
-<a name="index-whitespace_002c-compressing"></a>
-<a name="index-compressing-whitespace"></a>
-<div class="example">
-<pre class="verbatim">    %%
-    [ \t]+        putchar( ' ' );
-    [ \t]+$       /* ignore this token */
-</pre></div>
-
-<a name="index-_0025_007b-and-_0025_007d_002c-in-Rules-Section"></a>
-<a name="index-actions_002c-use-of-_007b-and-_007d"></a>
-<a name="index-actions_002c-embedded-C-strings"></a>
-<a name="index-C_002dstrings_002c-in-actions"></a>
-<a name="index-comments_002c-in-actions"></a>
-<p>If the action contains a &lsquo;<samp>{</samp>&rsquo;, then the action spans till the
-balancing &lsquo;<samp>}</samp>&rsquo; is found, and the action may cross multiple lines.
-<code>flex</code> knows about C strings and comments and won&rsquo;t be fooled by
-braces found within them, but also allows actions to begin with
-&lsquo;<samp>%{</samp>&rsquo; and will consider the action to be all the text up to the
-next &lsquo;<samp>%}</samp>&rsquo; (regardless of ordinary braces inside the action).
-</p>
-<a name="index-_007c_002c-in-actions"></a>
-<p>An action consisting solely of a vertical bar (&lsquo;<samp>|</samp>&rsquo;) means &ldquo;same as the
-action for the next rule&rdquo;.  See below for an illustration.
-</p>
-<p>Actions can include arbitrary C code, including <code>return</code> statements
-to return a value to whatever routine called <code>yylex()</code>.  Each time
-<code>yylex()</code> is called it continues processing tokens from where it
-last left off until it either reaches the end of the file or executes a
-return.
-</p>
-<a name="index-yytext_002c-modification-of"></a>
-<p>Actions are free to modify <code>yytext</code> except for lengthening it
-(adding characters to its end&ndash;these will overwrite later characters in
-the input stream).  This however does not apply when using <code>%array</code>
-(see <a href="Matching.html#Matching">Matching</a>). In that case, <code>yytext</code> may be freely modified
-in any way.
-</p>
-<a name="index-yyleng_002c-modification-of"></a>
-<a name="index-yymore_002c-and-yyleng"></a>
-<p>Actions are free to modify <code>yyleng</code> except they should not do so if
-the action also includes use of <code>yymore()</code> (see below).
-</p>
-<a name="index-preprocessor-macros_002c-for-use-in-actions"></a>
-<p>There are a number of special directives which can be included within an
-action:
-</p>
-<dl compact="compact">
-<dt><code>ECHO</code></dt>
-<dd><a name="index-ECHO"></a>
-<p>copies yytext to the scanner&rsquo;s output.
-</p>
-</dd>
-<dt><code>BEGIN</code></dt>
-<dd><a name="index-BEGIN"></a>
-<p>followed by the name of a start condition places the scanner in the
-corresponding start condition (see below).
-</p>
-</dd>
-<dt><code>REJECT</code></dt>
-<dd><a name="index-REJECT"></a>
-<p>directs the scanner to proceed on to the &ldquo;second best&rdquo; rule which
-matched the input (or a prefix of the input).  The rule is chosen as
-described above in <a href="Matching.html#Matching">Matching</a>, and <code>yytext</code> and <code>yyleng</code>
-set up appropriately.  It may either be one which matched as much text
-as the originally chosen rule but came later in the <code>flex</code> input
-file, or one which matched less text.  For example, the following will
-both count the words in the input and call the routine <code>special()</code>
-whenever &lsquo;<samp>frob</samp>&rsquo; is seen:
-</p>
-<div class="example">
-<pre class="verbatim">            int word_count = 0;
-    %%
-
-    frob        special(); REJECT;
-    [^ \t\n]+   ++word_count;
-</pre></div>
-
-<p>Without the <code>REJECT</code>, any occurrences of &lsquo;<samp>frob</samp>&rsquo; in the input
-would not be counted as words, since the scanner normally executes only
-one action per token.  Multiple uses of <code>REJECT</code> are allowed, each
-one finding the next best choice to the currently active rule.  For
-example, when the following scanner scans the token &lsquo;<samp>abcd</samp>&rsquo;, it will
-write &lsquo;<samp>abcdabcaba</samp>&rsquo; to the output:
-</p>
-<a name="index-REJECT_002c-calling-multiple-times"></a>
-<a name="index-_007c_002c-use-of"></a>
-<div class="example">
-<pre class="verbatim">    %%
-    a        |
-    ab       |
-    abc      |
-    abcd     ECHO; REJECT;
-    .|\n     /* eat up any unmatched character */
-</pre></div>
-
-<p>The first three rules share the fourth&rsquo;s action since they use the
-special &lsquo;<samp>|</samp>&rsquo; action.
-</p>
-<p><code>REJECT</code> is a particularly expensive feature in terms of scanner
-performance; if it is used in <em>any</em> of the scanner&rsquo;s actions it
-will slow down <em>all</em> of the scanner&rsquo;s matching.  Furthermore,
-<code>REJECT</code> cannot be used with the &lsquo;<samp>-Cf</samp>&rsquo; or &lsquo;<samp>-CF</samp>&rsquo; options
-(see <a href="Scanner-Options.html#Scanner-Options">Scanner Options</a>).
-</p>
-<p>Note also that unlike the other special actions, <code>REJECT</code> is a
-<em>branch</em>.  Code immediately following it in the action will
-<em>not</em> be executed.
-</p>
-</dd>
-<dt><code>yymore()</code></dt>
-<dd><a name="index-yymore_0028_0029"></a>
-<p>tells the scanner that the next time it matches a rule, the
-corresponding token should be <em>appended</em> onto the current value of
-<code>yytext</code> rather than replacing it.  For example, given the input
-&lsquo;<samp>mega-kludge</samp>&rsquo; the following will write &lsquo;<samp>mega-mega-kludge</samp>&rsquo; to
-the output:
-</p>
-<a name="index-yymore_0028_0029_002c-mega_002dkludge"></a>
-<a name="index-yymore_0028_0029-to-append-token-to-previous-token"></a>
-<div class="example">
-<pre class="verbatim">    %%
-    mega-    ECHO; yymore();
-    kludge   ECHO;
-</pre></div>
-
-<p>First &lsquo;<samp>mega-</samp>&rsquo; is matched and echoed to the output.  Then &lsquo;<samp>kludge</samp>&rsquo;
-is matched, but the previous &lsquo;<samp>mega-</samp>&rsquo; is still hanging around at the
-beginning of
-<code>yytext</code>
-so the
-<code>ECHO</code>
-for the &lsquo;<samp>kludge</samp>&rsquo; rule will actually write &lsquo;<samp>mega-kludge</samp>&rsquo;.
-</p></dd>
-</dl>
-
-<a name="index-yymore_002c-performance-penalty-of"></a>
-<p>Two notes regarding use of <code>yymore()</code>.  First, <code>yymore()</code>
-depends on the value of <code>yyleng</code> correctly reflecting the size of
-the current token, so you must not modify <code>yyleng</code> if you are using
-<code>yymore()</code>.  Second, the presence of <code>yymore()</code> in the
-scanner&rsquo;s action entails a minor performance penalty in the scanner&rsquo;s
-matching speed.
-</p>
-<a name="index-yyless_0028_0029"></a>
-<p><code>yyless(n)</code> returns all but the first <code>n</code> characters of the
-current token back to the input stream, where they will be rescanned
-when the scanner looks for the next match.  <code>yytext</code> and
-<code>yyleng</code> are adjusted appropriately (e.g., <code>yyleng</code> will now
-be equal to <code>n</code>).  For example, on the input &lsquo;<samp>foobar</samp>&rsquo; the
-following will write out &lsquo;<samp>foobarbar</samp>&rsquo;:
-</p>
-<a name="index-yyless_0028_0029_002c-pushing-back-characters"></a>
-<a name="index-pushing-back-characters-with-yyless"></a>
-<div class="example">
-<pre class="verbatim">    %%
-    foobar    ECHO; yyless(3);
-    [a-z]+    ECHO;
-</pre></div>
-
-<p>An argument of 0 to <code>yyless()</code> will cause the entire current input
-string to be scanned again.  Unless you&rsquo;ve changed how the scanner will
-subsequently process its input (using <code>BEGIN</code>, for example), this
-will result in an endless loop.
-</p>
-<p>Note that <code>yyless()</code> is a macro and can only be used in the flex
-input file, not from other source files.
-</p>
-<a name="index-unput_0028_0029"></a>
-<a name="index-pushing-back-characters-with-unput"></a>
-<p><code>unput(c)</code> puts the character <code>c</code> back onto the input stream.
-It will be the next character scanned.  The following action will take
-the current token and cause it to be rescanned enclosed in parentheses.
-</p>
-<a name="index-unput_0028_0029_002c-pushing-back-characters"></a>
-<a name="index-pushing-back-characters-with-unput_0028_0029"></a>
-<div class="example">
-<pre class="verbatim">    {
-    int i;
-    /* Copy yytext because unput() trashes yytext */
-    char *yycopy = strdup( yytext );
-    unput( ')' );
-    for ( i = yyleng - 1; i &gt;= 0; --i )
-        unput( yycopy[i] );
-    unput( '(' );
-    free( yycopy );
-    }
-</pre></div>
-
-<p>Note that since each <code>unput()</code> puts the given character back at the
-<em>beginning</em> of the input stream, pushing back strings must be done
-back-to-front.
-</p>
-<a name="index-_0025pointer_002c-and-unput_0028_0029"></a>
-<a name="index-unput_0028_0029_002c-and-_0025pointer"></a>
-<p>An important potential problem when using <code>unput()</code> is that if you
-are using <code>%pointer</code> (the default), a call to <code>unput()</code>
-<em>destroys</em> the contents of <code>yytext</code>, starting with its
-rightmost character and devouring one character to the left with each
-call.  If you need the value of <code>yytext</code> preserved after a call to
-<code>unput()</code> (as in the above example), you must either first copy it
-elsewhere, or build your scanner using <code>%array</code> instead
-(see <a href="Matching.html#Matching">Matching</a>).
-</p>
-<a name="index-pushing-back-EOF"></a>
-<a name="index-EOF_002c-pushing-back"></a>
-<p>Finally, note that you cannot put back &lsquo;<samp>EOF</samp>&rsquo; to attempt to mark the
-input stream with an end-of-file.
-</p>
-<a name="index-input_0028_0029"></a>
-<p><code>input()</code> reads the next character from the input stream.  For
-example, the following is one way to eat up C comments:
-</p>
-<a name="index-comments_002c-discarding"></a>
-<a name="index-discarding-C-comments"></a>
-<div class="example">
-<pre class="verbatim">    %%
-    &quot;/*&quot;        {
-                int c;
-
-                for ( ; ; )
-                    {
-                    while ( (c = input()) != '*' &amp;&amp;
-                            c != EOF )
-                        ;    /* eat up text of comment */
-
-                    if ( c == '*' )
-                        {
-                        while ( (c = input()) == '*' )
-                            ;
-                        if ( c == '/' )
-                            break;    /* found the end */
-                        }
-
-                    if ( c == EOF )
-                        {
-                        error( &quot;EOF in comment&quot; );
-                        break;
-                        }
-                    }
-                }
-</pre></div>
-
-<a name="index-input_0028_0029_002c-and-C_002b_002b"></a>
-<a name="index-yyinput_0028_0029"></a>
-<p>(Note that if the scanner is compiled using <code>C++</code>, then
-<code>input()</code> is instead referred to as <b>yyinput()</b>, in order to
-avoid a name clash with the <code>C++</code> stream by the name of
-<code>input</code>.)
-</p>
-<a name="index-flushing-the-internal-buffer"></a>
-<a name="index-YY_005fFLUSH_005fBUFFER"></a>
-<p><code>YY_FLUSH_BUFFER;</code> flushes the scanner&rsquo;s internal buffer so that
-the next time the scanner attempts to match a token, it will first
-refill the buffer using <code>YY_INPUT()</code> (see <a href="Generated-Scanner.html#Generated-Scanner">Generated Scanner</a>).
-This action is a special case of the more general
-<code>yy_flush_buffer;</code> function, described below (see <a href="Multiple-Input-Buffers.html#Multiple-Input-Buffers">Multiple Input Buffers</a>)
-</p>
-<a name="index-yyterminate_0028_0029"></a>
-<a name="index-terminating-with-yyterminate_0028_0029"></a>
-<a name="index-exiting-with-yyterminate_0028_0029"></a>
-<a name="index-halting-with-yyterminate_0028_0029"></a>
-<p><code>yyterminate()</code> can be used in lieu of a return statement in an
-action.  It terminates the scanner and returns a 0 to the scanner&rsquo;s
-caller, indicating &ldquo;all done&rdquo;.  By default, <code>yyterminate()</code> is
-also called when an end-of-file is encountered.  It is a macro and may
-be redefined.
-</p>
-<hr>
-<div class="header">
-<p>
-Next: <a href="Generated-Scanner.html#Generated-Scanner" accesskey="n" rel="next">Generated Scanner</a>, Previous: <a href="Matching.html#Matching" accesskey="p" rel="prev">Matching</a>, Up: <a href="index.html#Top" accesskey="u" rel="up">Top</a> &nbsp; [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Indices.html#Indices" title="Index" rel="index">Index</a>]</p>
-</div>
-
-
-
-</body>
-</html>

manual/Addresses.html

@@ -1,135 +0,0 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
-<html>
-<!-- 
-The flex manual is placed under the same licensing conditions as the
-rest of flex:
-
-Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2012
-The Flex Project.
-
-Copyright (C) 1990, 1997 The Regents of the University of California.
-All rights reserved.
-
-This code is derived from software contributed to Berkeley by
-Vern Paxson.
-
-The United States Government has rights in this work pursuant
-to contract no. DE-AC03-76SF00098 between the United States
-Department of Energy and the University of California.
-
-Redistribution and use in source and binary forms, with or without
-modification, are permitted provided that the following conditions
-are met:
-
-1. Redistributions of source code must retain the above copyright
-notice, this list of conditions and the following disclaimer.
-
-2. Redistributions in binary form must reproduce the above copyright
-notice, this list of conditions and the following disclaimer in the
-documentation and/or other materials provided with the distribution.
-
-Neither the name of the University nor the names of its contributors
-may be used to endorse or promote products derived from this software
-without specific prior written permission.
-
-THIS SOFTWARE IS PROVIDED "AS IS" AND WITHOUT ANY EXPRESS OR
-IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
-WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
-PURPOSE. -->
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-<head>
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-
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-<a name="Addresses"></a>
-<div class="header">
-<p>
-Previous: <a href="Quoted-Constructs.html#Quoted-Constructs" accesskey="p" rel="prev">Quoted Constructs</a>, Up: <a href="Common-Patterns.html#Common-Patterns" accesskey="u" rel="up">Common Patterns</a> &nbsp; [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Indices.html#Indices" title="Index" rel="index">Index</a>]</p>
-</div>
-<hr>
-<a name="Addresses-1"></a>
-<h4 class="subsection">A.4.4 Addresses</h4>
-
-<dl compact="compact">
-<dt>IPv4 Address</dt>
-<dd><pre class="verbatim">dec-octet     [0-9]|[1-9][0-9]|1[0-9][0-9]|2[0-4][0-9]|25[0-5]
-IPv4address   {dec-octet}\.{dec-octet}\.{dec-octet}\.{dec-octet}
-</pre>
-</dd>
-<dt>IPv6 Address</dt>
-<dd><pre class="verbatim">h16           [0-9A-Fa-f]{1,4}
-ls32          {h16}:{h16}|{IPv4address}
-IPv6address   ({h16}:){6}{ls32}|
-              ::({h16}:){5}{ls32}|
-              ({h16})?::({h16}:){4}{ls32}|
-              (({h16}:){0,1}{h16})?::({h16}:){3}{ls32}|
-              (({h16}:){0,2}{h16})?::({h16}:){2}{ls32}|
-              (({h16}:){0,3}{h16})?::{h16}:{ls32}|
-              (({h16}:){0,4}{h16})?::{ls32}|
-              (({h16}:){0,5}{h16})?::{h16}|
-              (({h16}:){0,6}{h16})?::
-</pre>
-<p>See <a href="http://www.ietf.org/rfc/rfc2373.txt">RFC 2373</a> for details.
-Note that you have to fold the definition of <code>IPv6address</code> into one
-line and that it also matches the &ldquo;unspecified address&rdquo; &ldquo;::&rdquo;.
-</p>
-</dd>
-<dt>URI</dt>
-<dd><p><code>(([^:/?#]+):)?(&quot;//&quot;([^/?#]*))?([^?#]*)(\?([^#]*))?(#(.*))?</code>
-</p>
-<p>This pattern is nearly useless, since it allows just about any character
-to appear in a URI, including spaces and control characters.  See
-<a href="http://www.ietf.org/rfc/rfc2396.txt">RFC 2396</a> for details.
-</p>
-</dd>
-</dl>
-
-
-
-
-
-</body>
-</html>

manual/Appendices.html

@@ -1,111 +0,0 @@
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-rest of flex:
-
-Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2012
-The Flex Project.
-
-Copyright (C) 1990, 1997 The Regents of the University of California.
-All rights reserved.
-
-This code is derived from software contributed to Berkeley by
-Vern Paxson.
-
-The United States Government has rights in this work pursuant
-to contract no. DE-AC03-76SF00098 between the United States
-Department of Energy and the University of California.
-
-Redistribution and use in source and binary forms, with or without
-modification, are permitted provided that the following conditions
-are met:
-
-1. Redistributions of source code must retain the above copyright
-notice, this list of conditions and the following disclaimer.
-
-2. Redistributions in binary form must reproduce the above copyright
-notice, this list of conditions and the following disclaimer in the
-documentation and/or other materials provided with the distribution.
-
-Neither the name of the University nor the names of its contributors
-may be used to endorse or promote products derived from this software
-without specific prior written permission.
-
-THIS SOFTWARE IS PROVIDED "AS IS" AND WITHOUT ANY EXPRESS OR
-IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
-WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
-PURPOSE. -->
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-<div class="header">
-<p>
-Next: <a href="Indices.html#Indices" accesskey="n" rel="next">Indices</a>, Previous: <a href="FAQ.html#FAQ" accesskey="p" rel="prev">FAQ</a>, Up: <a href="index.html#Top" accesskey="u" rel="up">Top</a> &nbsp; [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Indices.html#Indices" title="Index" rel="index">Index</a>]</p>
-</div>
-<hr>
-<a name="Appendices-1"></a>
-<h2 class="appendix">Appendix A Appendices</h2>
-
-<table class="menu" border="0" cellspacing="0">
-<tr><td align="left" valign="top">&bull; <a href="Makefiles-and-Flex.html#Makefiles-and-Flex" accesskey="1">Makefiles and Flex</a>:</td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
-</td></tr>
-<tr><td align="left" valign="top">&bull; <a href="Bison-Bridge.html#Bison-Bridge" accesskey="2">Bison Bridge</a>:</td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
-</td></tr>
-<tr><td align="left" valign="top">&bull; <a href="M4-Dependency.html#M4-Dependency" accesskey="3">M4 Dependency</a>:</td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
-</td></tr>
-<tr><td align="left" valign="top">&bull; <a href="Common-Patterns.html#Common-Patterns" accesskey="4">Common Patterns</a>:</td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
-</td></tr>
-</table>
-
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-</body>
-</html>

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-Next: <a href="Is-backing-up-a-big-deal_003f.html#Is-backing-up-a-big-deal_003f" accesskey="n" rel="next">Is backing up a big deal?</a>, Previous: <a href="deleteme00.html#deleteme00" accesskey="p" rel="prev">deleteme00</a>, Up: <a href="FAQ.html#FAQ" accesskey="u" rel="up">FAQ</a> &nbsp; [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Indices.html#Indices" title="Index" rel="index">Index</a>]</p>
-</div>
-<hr>
-<a name="Are-certain-equivalent-patterns-faster-than-others_003f-1"></a>
-<h3 class="unnumberedsec">Are certain equivalent patterns faster than others?</h3>
-<div class="example">
-<pre class="verbatim">To: Adoram Rogel &lt;adoram@orna.hybridge.com&gt;
-Subject: Re: Flex 2.5.2 performance questions
-In-reply-to: Your message of Wed, 18 Sep 96 11:12:17 EDT.
-Date: Wed, 18 Sep 96 10:51:02 PDT
-From: Vern Paxson &lt;vern&gt;
-
-[Note, the most recent flex release is 2.5.4, which you can get from
-ftp.ee.lbl.gov.  It has bug fixes over 2.5.2 and 2.5.3.]
-
-&gt; 1. Using the pattern
-&gt;    ([Ff](oot)?)?[Nn](ote)?(\.)?
-&gt;    instead of
-&gt;    (((F|f)oot(N|n)ote)|((N|n)ote)|((N|n)\.)|((F|f)(N|n)(\.)))
-&gt;    (in a very complicated flex program) caused the program to slow from
-&gt;    300K+/min to 100K/min (no other changes were done).
-
-These two are not equivalent.  For example, the first can match &quot;footnote.&quot;
-but the second can only match &quot;footnote&quot;.  This is almost certainly the
-cause in the discrepancy - the slower scanner run is matching more tokens,
-and/or having to do more backing up.
-
-&gt; 2. Which of these two are better: [Ff]oot or (F|f)oot ?
-
-From a performance point of view, they're equivalent (modulo presumably
-minor effects such as memory cache hit rates; and the presence of trailing
-context, see below).  From a space point of view, the first is slightly
-preferable.
-
-&gt; 3. I have a pattern that look like this:
-&gt;    pats {p1}|{p2}|{p3}|...|{p50}     (50 patterns ORd)
-&gt;
-&gt;    running yet another complicated program that includes the following rule:
-&gt;    &lt;snext&gt;{and}/{no4}{bb}{pats}
-&gt;
-&gt;    gets me to &quot;too complicated - over 32,000 states&quot;...
-
-I can't tell from this example whether the trailing context is variable-length
-or fixed-length (it could be the latter if {and} is fixed-length).  If it's
-variable length, which flex -p will tell you, then this reflects a basic
-performance problem, and if you can eliminate it by restructuring your
-scanner, you will see significant improvement.
-
-&gt;    so I divided {pats} to {pats1}, {pats2},..., {pats5} each consists of about
-&gt;    10 patterns and changed the rule to be 5 rules.
-&gt;    This did compile, but what is the rule of thumb here ?
-
-The rule is to avoid trailing context other than fixed-length, in which for
-a/b, either the 'a' pattern or the 'b' pattern have a fixed length.  Use
-of the '|' operator automatically makes the pattern variable length, so in
-this case '[Ff]oot' is preferred to '(F|f)oot'.
-
-&gt; 4. I changed a rule that looked like this:
-&gt;    &lt;snext8&gt;{and}{bb}/{ROMAN}[^A-Za-z] { BEGIN...
-&gt;
-&gt;    to the next 2 rules:
-&gt;    &lt;snext8&gt;{and}{bb}/{ROMAN}[A-Za-z] { ECHO;}
-&gt;    &lt;snext8&gt;{and}{bb}/{ROMAN}         { BEGIN...
-&gt;
-&gt;    Again, I understand the using [^...] will cause a great performance loss
-
-Actually, it doesn't cause any sort of performance loss.  It's a surprising
-fact about regular expressions that they always match in linear time
-regardless of how complex they are.
-
-&gt;    but are there any specific rules about it ?
-
-See the &quot;Performance Considerations&quot; section of the man page, and also
-the example in MISC/fastwc/.
-
-		Vern
-</pre></div>
-
-<hr>
-<div class="header">
-<p>
-Next: <a href="Is-backing-up-a-big-deal_003f.html#Is-backing-up-a-big-deal_003f" accesskey="n" rel="next">Is backing up a big deal?</a>, Previous: <a href="deleteme00.html#deleteme00" accesskey="p" rel="prev">deleteme00</a>, Up: <a href="FAQ.html#FAQ" accesskey="u" rel="up">FAQ</a> &nbsp; [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Indices.html#Indices" title="Index" rel="index">Index</a>]</p>
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-</body>
-</html>

manual/Bibliography.html

@@ -1,122 +0,0 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
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-
-Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2012
-The Flex Project.
-
-Copyright (C) 1990, 1997 The Regents of the University of California.
-All rights reserved.
-
-This code is derived from software contributed to Berkeley by
-Vern Paxson.
-
-The United States Government has rights in this work pursuant
-to contract no. DE-AC03-76SF00098 between the United States
-Department of Energy and the University of California.
-
-Redistribution and use in source and binary forms, with or without
-modification, are permitted provided that the following conditions
-are met:
-
-1. Redistributions of source code must retain the above copyright
-notice, this list of conditions and the following disclaimer.
-
-2. Redistributions in binary form must reproduce the above copyright
-notice, this list of conditions and the following disclaimer in the
-documentation and/or other materials provided with the distribution.
-
-Neither the name of the University nor the names of its contributors
-may be used to endorse or promote products derived from this software
-without specific prior written permission.
-
-THIS SOFTWARE IS PROVIDED "AS IS" AND WITHOUT ANY EXPRESS OR
-IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
-WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
-PURPOSE. -->
-<!-- Created by GNU Texinfo 6.1, http://www.gnu.org/software/texinfo/ -->
-<head>
-<title>Lexical Analysis With Flex, for Flex 2.6.2: Bibliography</title>
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-<a name="Bibliography"></a>
-<div class="header">
-<p>
-Next: <a href="FAQ.html#FAQ" accesskey="n" rel="next">FAQ</a>, Previous: <a href="Limitations.html#Limitations" accesskey="p" rel="prev">Limitations</a>, Up: <a href="index.html#Top" accesskey="u" rel="up">Top</a> &nbsp; [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Indices.html#Indices" title="Index" rel="index">Index</a>]</p>
-</div>
-<hr>
-<a name="Additional-Reading"></a>
-<h2 class="chapter">25 Additional Reading</h2>
-
-<p>You may wish to read more about the following programs:
-</p><ul>
-<li> lex
-</li><li> yacc
-</li><li> sed
-</li><li> awk
-</li></ul>
-
-<p>The following books may contain material of interest:
-</p>
-<p>John Levine, Tony Mason, and Doug Brown,
-<em>Lex &amp; Yacc</em>,
-O&rsquo;Reilly and Associates.  Be sure to get the 2nd edition.
-</p>
-<p>M. E. Lesk and E. Schmidt,
-<em>LEX &ndash; Lexical Analyzer Generator</em>
-</p>
-<p>Alfred Aho, Ravi Sethi and Jeffrey Ullman, <em>Compilers: Principles,
-Techniques and Tools</em>, Addison-Wesley (1986).  Describes the
-pattern-matching techniques used by <code>flex</code> (deterministic finite
-automata).
-</p>
-
-
-
-</body>
-</html>

manual/Bison-Bridge.html

@@ -1,203 +0,0 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
-<html>
-<!-- 
-The flex manual is placed under the same licensing conditions as the
-rest of flex:
-
-Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2012
-The Flex Project.
-
-Copyright (C) 1990, 1997 The Regents of the University of California.
-All rights reserved.
-
-This code is derived from software contributed to Berkeley by
-Vern Paxson.
-
-The United States Government has rights in this work pursuant
-to contract no. DE-AC03-76SF00098 between the United States
-Department of Energy and the University of California.
-
-Redistribution and use in source and binary forms, with or without
-modification, are permitted provided that the following conditions
-are met:
-
-1. Redistributions of source code must retain the above copyright
-notice, this list of conditions and the following disclaimer.
-
-2. Redistributions in binary form must reproduce the above copyright
-notice, this list of conditions and the following disclaimer in the
-documentation and/or other materials provided with the distribution.
-
-Neither the name of the University nor the names of its contributors
-may be used to endorse or promote products derived from this software
-without specific prior written permission.
-
-THIS SOFTWARE IS PROVIDED "AS IS" AND WITHOUT ANY EXPRESS OR
-IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
-WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
-PURPOSE. -->
-<!-- Created by GNU Texinfo 6.1, http://www.gnu.org/software/texinfo/ -->
-<head>
-<title>Lexical Analysis With Flex, for Flex 2.6.2: Bison Bridge</title>
-
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-Next: <a href="M4-Dependency.html#M4-Dependency" accesskey="n" rel="next">M4 Dependency</a>, Previous: <a href="Makefiles-and-Flex.html#Makefiles-and-Flex" accesskey="p" rel="prev">Makefiles and Flex</a>, Up: <a href="Appendices.html#Appendices" accesskey="u" rel="up">Appendices</a> &nbsp; [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Indices.html#Indices" title="Index" rel="index">Index</a>]</p>
-</div>
-<hr>
-<a name="C-Scanners-with-Bison-Parsers"></a>
-<h3 class="section">A.2 C Scanners with Bison Parsers</h3>
-
-<a name="index-bison_002c-bridging-with-flex"></a>
-<a name="index-yylval"></a>
-<a name="index-yylloc"></a>
-<a name="index-YYLTYPE"></a>
-<a name="index-YYSTYPE"></a>
-
-<p>This section describes the <code>flex</code> features useful when integrating
-<code>flex</code> with <code>GNU bison</code><a name="DOCF7" href="#FOOT7"><sup>7</sup></a>.
-Skip this section if you are not using
-<code>bison</code> with your scanner.  Here we discuss only the <code>flex</code>
-half of the <code>flex</code> and <code>bison</code> pair.  We do not discuss
-<code>bison</code> in any detail.  For more information about generating
-<code>bison</code> parsers, see <cite><a href="http://www.gnu.org/software/bison/manual/html_node/index.html#Top">the GNU Bison Manual</a></cite>.
-</p>
-<p>A compatible <code>bison</code> scanner is generated by declaring &lsquo;<samp>%option
-bison-bridge</samp>&rsquo; or by supplying &lsquo;<samp>--bison-bridge</samp>&rsquo; when invoking <code>flex</code>
-from the command line.  This instructs <code>flex</code> that the macro
-<code>yylval</code> may be used. The data type for
-<code>yylval</code>, <code>YYSTYPE</code>,
-is typically defined in a header file, included in section 1 of the
-<code>flex</code> input file.  For a list of functions and macros
-available, See <a href="Reentrant-Functions.html#bison_002dfunctions">bison-functions</a>.
-</p>
-<p>The declaration of yylex becomes,
-</p>
-<a name="index-yylex-_0028reentrant-version_0029"></a>
-<div class="example">
-<pre class="verbatim">      int yylex ( YYSTYPE * lvalp, yyscan_t scanner );
-</pre></div>
-
-<p>If <code>%option bison-locations</code> is specified, then the declaration
-becomes,
-</p>
-<a name="index-yylex-_0028reentrant-version_0029-1"></a>
-<div class="example">
-<pre class="verbatim">      int yylex ( YYSTYPE * lvalp, YYLTYPE * llocp, yyscan_t scanner );
-</pre></div>
-
-<p>Note that the macros <code>yylval</code> and <code>yylloc</code> evaluate to pointers.
-Support for <code>yylloc</code> is optional in <code>bison</code>, so it is optional in
-<code>flex</code> as well. The following is an example of a <code>flex</code> scanner that
-is compatible with <code>bison</code>.
-</p>
-<a name="index-bison_002c-scanner-to-be-called-from-bison"></a>
-<div class="example">
-<pre class="verbatim">    /* Scanner for &quot;C&quot; assignment statements... sort of. */
-    %{
-    #include &quot;y.tab.h&quot;  /* Generated by bison. */
-    %}
-
-    %option bison-bridge bison-locations
-    %
-
-    [[:digit:]]+  { yylval-&gt;num = atoi(yytext);   return NUMBER;}
-    [[:alnum:]]+  { yylval-&gt;str = strdup(yytext); return STRING;}
-    &quot;=&quot;|&quot;;&quot;       { return yytext[0];}
-    .  {}
-    %
-</pre></div>
-
-<p>As you can see, there really is no magic here. We just use
-<code>yylval</code> as we would any other variable. The data type of
-<code>yylval</code> is generated by <code>bison</code>, and included in the file
-<samp>y.tab.h</samp>. Here is the corresponding <code>bison</code> parser:
-</p>
-<a name="index-bison_002c-parser"></a>
-<div class="example">
-<pre class="verbatim">    /* Parser to convert &quot;C&quot; assignments to lisp. */
-    %{
-    /* Pass the argument to yyparse through to yylex. */
-    #define YYPARSE_PARAM scanner
-    #define YYLEX_PARAM   scanner
-    %}
-    %locations
-    %pure_parser
-    %union {
-        int num;
-        char* str;
-    }
-    %token &lt;str&gt; STRING
-    %token &lt;num&gt; NUMBER
-    %%
-    assignment:
-        STRING '=' NUMBER ';' {
-            printf( &quot;(setf %s %d)&quot;, $1, $3 );
-       }
-    ;
-</pre></div>
-
-<div class="footnote">
-<hr>
-<h4 class="footnotes-heading">Footnotes</h4>
-
-<h3><a name="FOOT7" href="#DOCF7">(7)</a></h3>
-<p>The features described here are
-purely optional, and are by no means the only way to use flex with bison.
-We merely provide some glue to ease development of your parser-scanner pair.</p>
-</div>
-<hr>
-<div class="header">
-<p>
-Next: <a href="M4-Dependency.html#M4-Dependency" accesskey="n" rel="next">M4 Dependency</a>, Previous: <a href="Makefiles-and-Flex.html#Makefiles-and-Flex" accesskey="p" rel="prev">Makefiles and Flex</a>, Up: <a href="Appendices.html#Appendices" accesskey="u" rel="up">Appendices</a> &nbsp; [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Indices.html#Indices" title="Index" rel="index">Index</a>]</p>
-</div>
-
-
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-<div class="header">
-<p>
-Next: <a href="How-can-I-match-text-only-at-the-end-of-a-file_003f.html#How-can-I-match-text-only-at-the-end-of-a-file_003f" accesskey="n" rel="next">How can I match text only at the end of a file?</a>, Previous: <a href="How-can-I-have-multiple-input-sources-feed-into-the-same-scanner-at-the-same-time_003f.html#How-can-I-have-multiple-input-sources-feed-into-the-same-scanner-at-the-same-time_003f" accesskey="p" rel="prev">How can I have multiple input sources feed into the same scanner at the same time?</a>, Up: <a href="FAQ.html#FAQ" accesskey="u" rel="up">FAQ</a> &nbsp; [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Indices.html#Indices" title="Index" rel="index">Index</a>]</p>
-</div>
-<hr>
-<a name="Can-I-build-nested-parsers-that-work-with-the-same-input-file_003f-1"></a>
-<h3 class="unnumberedsec">Can I build nested parsers that work with the same input file?</h3>
-
-<p>This is not going to work without some additional effort.  The reason is
-that <code>flex</code> block-buffers the input it reads from <code>yyin</code>.  This means that the
-&ldquo;outermost&rdquo; <code>yylex()</code>, when called, will automatically slurp up the first 8K
-of input available on yyin, and subsequent calls to other <code>yylex()</code>&rsquo;s won&rsquo;t
-see that input.  You might be tempted to work around this problem by
-redefining <code>YY_INPUT</code> to only return a small amount of text, but it turns out
-that that approach is quite difficult.  Instead, the best solution is to
-combine all of your scanners into one large scanner, using a different
-exclusive start condition for each.
-</p>
-
-
-
-</body>
-</html>

manual/Can-I-fake-multi_002dbyte-character-support_003f.html

@@ -1,133 +0,0 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
-<html>
-<!-- 
-The flex manual is placed under the same licensing conditions as the
-rest of flex:
-
-Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2012
-The Flex Project.
-
-Copyright (C) 1990, 1997 The Regents of the University of California.
-All rights reserved.
-
-This code is derived from software contributed to Berkeley by
-Vern Paxson.
-
-The United States Government has rights in this work pursuant
-to contract no. DE-AC03-76SF00098 between the United States
-Department of Energy and the University of California.
-
-Redistribution and use in source and binary forms, with or without
-modification, are permitted provided that the following conditions
-are met:
-
-1. Redistributions of source code must retain the above copyright
-notice, this list of conditions and the following disclaimer.
-
-2. Redistributions in binary form must reproduce the above copyright
-notice, this list of conditions and the following disclaimer in the
-documentation and/or other materials provided with the distribution.
-
-Neither the name of the University nor the names of its contributors
-may be used to endorse or promote products derived from this software
-without specific prior written permission.
-
-THIS SOFTWARE IS PROVIDED "AS IS" AND WITHOUT ANY EXPRESS OR
-IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
-WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
-PURPOSE. -->
-<!-- Created by GNU Texinfo 6.1, http://www.gnu.org/software/texinfo/ -->
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-
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-</style>
-
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-
-<body lang="en">
-<a name="Can-I-fake-multi_002dbyte-character-support_003f"></a>
-<div class="header">
-<p>
-Next: <a href="deleteme01.html#deleteme01" accesskey="n" rel="next">deleteme01</a>, Previous: <a href="Is-backing-up-a-big-deal_003f.html#Is-backing-up-a-big-deal_003f" accesskey="p" rel="prev">Is backing up a big deal?</a>, Up: <a href="FAQ.html#FAQ" accesskey="u" rel="up">FAQ</a> &nbsp; [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Indices.html#Indices" title="Index" rel="index">Index</a>]</p>
-</div>
-<hr>
-<a name="Can-I-fake-multi_002dbyte-character-support_003f-1"></a>
-<h3 class="unnumberedsec">Can I fake multi-byte character support?</h3>
-<div class="example">
-<pre class="verbatim">To: Heeman_Lee@hp.com
-Subject: Re: flex - multi-byte support?
-In-reply-to: Your message of Thu, 03 Oct 1996 17:24:04 PDT.
-Date: Fri, 04 Oct 1996 11:42:18 PDT
-From: Vern Paxson &lt;vern&gt;
-
-&gt;      I assume as long as my *.l file defines the
-&gt;      range of expected character code values (in octal format), flex will
-&gt;      scan the file and read multi-byte characters correctly. But I have no
-&gt;      confidence in this assumption.
-
-Your lack of confidence is justified - this won't work.
-
-Flex has in it a widespread assumption that the input is processed
-one byte at a time.  Fixing this is on the to-do list, but is involved,
-so it won't happen any time soon.  In the interim, the best I can suggest
-(unless you want to try fixing it yourself) is to write your rules in
-terms of pairs of bytes, using definitions in the first section:
-
-	X	\xfe\xc2
-	...
-	%%
-	foo{X}bar	found_foo_fe_c2_bar();
-
-etc.  Definitely a pain - sorry about that.
-
-By the way, the email address you used for me is ancient, indicating you
-have a very old version of flex.  You can get the most recent, 2.5.4, from
-ftp.ee.lbl.gov.
-
-		Vern
-</pre></div>
-
-
-
-
-</body>
-</html>

manual/Can-I-get-the-flex-manual-in-another-format_003f.html

@@ -1,104 +0,0 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
-<html>
-<!-- 
-The flex manual is placed under the same licensing conditions as the
-rest of flex:
-
-Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2012
-The Flex Project.
-
-Copyright (C) 1990, 1997 The Regents of the University of California.
-All rights reserved.
-
-This code is derived from software contributed to Berkeley by
-Vern Paxson.
-
-The United States Government has rights in this work pursuant
-to contract no. DE-AC03-76SF00098 between the United States
-Department of Energy and the University of California.
-
-Redistribution and use in source and binary forms, with or without
-modification, are permitted provided that the following conditions
-are met:
-
-1. Redistributions of source code must retain the above copyright
-notice, this list of conditions and the following disclaimer.
-
-2. Redistributions in binary form must reproduce the above copyright
-notice, this list of conditions and the following disclaimer in the
-documentation and/or other materials provided with the distribution.
-
-Neither the name of the University nor the names of its contributors
-may be used to endorse or promote products derived from this software
-without specific prior written permission.
-
-THIS SOFTWARE IS PROVIDED "AS IS" AND WITHOUT ANY EXPRESS OR
-IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
-WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
-PURPOSE. -->
-<!-- Created by GNU Texinfo 6.1, http://www.gnu.org/software/texinfo/ -->
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-<link href="The-period-isn_0027t-working-the-way-I-expected_002e.html#The-period-isn_0027t-working-the-way-I-expected_002e" rel="prev" title="The period isn't working the way I expected.">
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-
-</head>
-
-<body lang="en">
-<a name="Can-I-get-the-flex-manual-in-another-format_003f"></a>
-<div class="header">
-<p>
-Next: <a href="Does-there-exist-a-_0022faster_0022-NDFA_002d_003eDFA-algorithm_003f.html#Does-there-exist-a-_0022faster_0022-NDFA_002d_003eDFA-algorithm_003f" accesskey="n" rel="next">Does there exist a &quot;faster&quot; NDFA-&gt;DFA algorithm?</a>, Previous: <a href="The-period-isn_0027t-working-the-way-I-expected_002e.html#The-period-isn_0027t-working-the-way-I-expected_002e" accesskey="p" rel="prev">The period isn't working the way I expected.</a>, Up: <a href="FAQ.html#FAQ" accesskey="u" rel="up">FAQ</a> &nbsp; [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Indices.html#Indices" title="Index" rel="index">Index</a>]</p>
-</div>
-<hr>
-<a name="Can-I-get-the-flex-manual-in-another-format_003f-1"></a>
-<h3 class="unnumberedsec">Can I get the flex manual in another format?</h3>
-
-<p>The <code>flex</code> source distribution  includes a texinfo manual. You are
-free to convert that texinfo into whatever format you desire. The
-<code>texinfo</code> package includes tools for conversion to a number of formats.
-</p>
-
-
-
-</body>
-</html>

manual/Can-I-include-comments-in-the-_0022rules_0022-section-of-the-file_003f.html

@@ -1,102 +0,0 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
-<html>
-<!-- 
-The flex manual is placed under the same licensing conditions as the
-rest of flex:
-
-Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2012
-The Flex Project.
-
-Copyright (C) 1990, 1997 The Regents of the University of California.
-All rights reserved.
-
-This code is derived from software contributed to Berkeley by
-Vern Paxson.
-
-The United States Government has rights in this work pursuant
-to contract no. DE-AC03-76SF00098 between the United States
-Department of Energy and the University of California.
-
-Redistribution and use in source and binary forms, with or without
-modification, are permitted provided that the following conditions
-are met:
-
-1. Redistributions of source code must retain the above copyright
-notice, this list of conditions and the following disclaimer.
-
-2. Redistributions in binary form must reproduce the above copyright
-notice, this list of conditions and the following disclaimer in the
-documentation and/or other materials provided with the distribution.
-
-Neither the name of the University nor the names of its contributors
-may be used to endorse or promote products derived from this software
-without specific prior written permission.
-
-THIS SOFTWARE IS PROVIDED "AS IS" AND WITHOUT ANY EXPRESS OR
-IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
-WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
-PURPOSE. -->
-<!-- Created by GNU Texinfo 6.1, http://www.gnu.org/software/texinfo/ -->
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-
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-
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-<a name="Can-I-include-comments-in-the-_0022rules_0022-section-of-the-file_003f"></a>
-<div class="header">
-<p>
-Next: <a href="I-get-an-error-about-undefined-yywrap_0028_0029_002e.html#I-get-an-error-about-undefined-yywrap_0028_0029_002e" accesskey="n" rel="next">I get an error about undefined yywrap().</a>, Previous: <a href="Where-else-can-I-find-help_003f.html#Where-else-can-I-find-help_003f" accesskey="p" rel="prev">Where else can I find help?</a>, Up: <a href="FAQ.html#FAQ" accesskey="u" rel="up">FAQ</a> &nbsp; [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Indices.html#Indices" title="Index" rel="index">Index</a>]</p>
-</div>
-<hr>
-<a name="Can-I-include-comments-in-the-_0022rules_0022-section-of-the-file_003f-1"></a>
-<h3 class="unnumberedsec">Can I include comments in the &quot;rules&quot; section of the file?</h3>
-
-<p>Yes, just about anywhere you want to. See the manual for the specific syntax.
-</p>
-
-
-
-</body>
-</html>

manual/Can-you-discuss-some-flex-internals_003f.html

@@ -1,155 +0,0 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
-<html>
-<!-- 
-The flex manual is placed under the same licensing conditions as the
-rest of flex:
-
-Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2012
-The Flex Project.
-
-Copyright (C) 1990, 1997 The Regents of the University of California.
-All rights reserved.
-
-This code is derived from software contributed to Berkeley by
-Vern Paxson.
-
-The United States Government has rights in this work pursuant
-to contract no. DE-AC03-76SF00098 between the United States
-Department of Energy and the University of California.
-
-Redistribution and use in source and binary forms, with or without
-modification, are permitted provided that the following conditions
-are met:
-
-1. Redistributions of source code must retain the above copyright
-notice, this list of conditions and the following disclaimer.
-
-2. Redistributions in binary form must reproduce the above copyright
-notice, this list of conditions and the following disclaimer in the
-documentation and/or other materials provided with the distribution.
-
-Neither the name of the University nor the names of its contributors
-may be used to endorse or promote products derived from this software
-without specific prior written permission.
-
-THIS SOFTWARE IS PROVIDED "AS IS" AND WITHOUT ANY EXPRESS OR
-IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
-WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
-PURPOSE. -->
-<!-- Created by GNU Texinfo 6.1, http://www.gnu.org/software/texinfo/ -->
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-<div class="header">
-<p>
-Next: <a href="unput_0028_0029-messes-up-yy_005fat_005fbol.html#unput_0028_0029-messes-up-yy_005fat_005fbol" accesskey="n" rel="next">unput() messes up yy_at_bol</a>, Previous: <a href="deleteme01.html#deleteme01" accesskey="p" rel="prev">deleteme01</a>, Up: <a href="FAQ.html#FAQ" accesskey="u" rel="up">FAQ</a> &nbsp; [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Indices.html#Indices" title="Index" rel="index">Index</a>]</p>
-</div>
-<hr>
-<a name="Can-you-discuss-some-flex-internals_003f-1"></a>
-<h3 class="unnumberedsec">Can you discuss some flex internals?</h3>
-<div class="example">
-<pre class="verbatim">To: Johan Linde &lt;jl@theophys.kth.se&gt;
-Subject: Re: translation of flex
-In-reply-to: Your message of Sun, 10 Nov 1996 09:16:36 PST.
-Date: Mon, 11 Nov 1996 10:33:50 PST
-From: Vern Paxson &lt;vern&gt;
-
-&gt; I'm working for the Swedish team translating GNU program, and I'm currently
-&gt; working with flex. I have a few questions about some of the messages which
-&gt; I hope you can answer.
-
-All of the things you're wondering about, by the way, concerning flex
-internals - probably the only person who understands what they mean in
-English is me!  So I wouldn't worry too much about getting them right.
-That said ...
-
-&gt; #: main.c:545
-&gt; msgid &quot;  %d protos created\n&quot;
-&gt;
-&gt; Does proto mean prototype?
-
-Yes - prototypes of state compression tables.
-
-&gt; #: main.c:539
-&gt; msgid &quot;  %d/%d (peak %d) template nxt-chk entries created\n&quot;
-&gt;
-&gt; Here I'm mainly puzzled by 'nxt-chk'. I guess it means 'next-check'. (?)
-&gt; However, 'template next-check entries' doesn't make much sense to me. To be
-&gt; able to find a good translation I need to know a little bit more about it.
-
-There is a scheme in the Aho/Sethi/Ullman compiler book for compressing
-scanner tables.  It involves creating two pairs of tables.  The first has
-&quot;base&quot; and &quot;default&quot; entries, the second has &quot;next&quot; and &quot;check&quot; entries.
-The &quot;base&quot; entry is indexed by the current state and yields an index into
-the next/check table.  The &quot;default&quot; entry gives what to do if the state
-transition isn't found in next/check.  The &quot;next&quot; entry gives the next
-state to enter, but only if the &quot;check&quot; entry verifies that this entry is
-correct for the current state.  Flex creates templates of series of
-next/check entries and then encodes differences from these templates as a
-way to compress the tables.
-
-&gt; #: main.c:533
-&gt; msgid &quot;  %d/%d base-def entries created\n&quot;
-&gt;
-&gt; The same problem here for 'base-def'.
-
-See above.
-
-		Vern
-</pre></div>
-
-<hr>
-<div class="header">
-<p>
-Next: <a href="unput_0028_0029-messes-up-yy_005fat_005fbol.html#unput_0028_0029-messes-up-yy_005fat_005fbol" accesskey="n" rel="next">unput() messes up yy_at_bol</a>, Previous: <a href="deleteme01.html#deleteme01" accesskey="p" rel="prev">deleteme01</a>, Up: <a href="FAQ.html#FAQ" accesskey="u" rel="up">FAQ</a> &nbsp; [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Indices.html#Indices" title="Index" rel="index">Index</a>]</p>
-</div>
-
-
-
-</body>
-</html>

manual/Code_002dLevel-And-API-Options.html

@@ -1,309 +0,0 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
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-
-Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2012
-The Flex Project.
-
-Copyright (C) 1990, 1997 The Regents of the University of California.
-All rights reserved.
-
-This code is derived from software contributed to Berkeley by
-Vern Paxson.
-
-The United States Government has rights in this work pursuant
-to contract no. DE-AC03-76SF00098 between the United States
-Department of Energy and the University of California.
-
-Redistribution and use in source and binary forms, with or without
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-are met:
-
-1. Redistributions of source code must retain the above copyright
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-
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-
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-<link href="Scanner-Options.html#Scanner-Options" rel="up" title="Scanner Options">
-<link href="Options-for-Scanner-Speed-and-Size.html#Options-for-Scanner-Speed-and-Size" rel="next" title="Options for Scanner Speed and Size">
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-
-<body lang="en">
-<a name="Code_002dLevel-And-API-Options"></a>
-<div class="header">
-<p>
-Next: <a href="Options-for-Scanner-Speed-and-Size.html#Options-for-Scanner-Speed-and-Size" accesskey="n" rel="next">Options for Scanner Speed and Size</a>, Previous: <a href="Options-Affecting-Scanner-Behavior.html#Options-Affecting-Scanner-Behavior" accesskey="p" rel="prev">Options Affecting Scanner Behavior</a>, Up: <a href="Scanner-Options.html#Scanner-Options" accesskey="u" rel="up">Scanner Options</a> &nbsp; [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Indices.html#Indices" title="Index" rel="index">Index</a>]</p>
-</div>
-<hr>
-<a name="Code_002dLevel-And-API-Options-1"></a>
-<h3 class="section">16.3 Code-Level And API Options</h3>
-
-<dl compact="compact">
-<dd>
-<a name="option_002dansi_002ddefinitions"></a><a name="index-_002d_002d_002doption_002dansi_002ddefinitions"></a>
-<a name="index-ansi_002ddefinitions"></a>
-</dd>
-<dt>&lsquo;<samp>--ansi-definitions, <code>%option ansi-definitions</code></samp>&rsquo;</dt>
-<dd><p>Deprecated, ignored
-</p>
-<a name="option_002dansi_002dprototypes"></a><a name="index-_002d_002d_002doption_002dansi_002dprototypes"></a>
-<a name="index-ansi_002dprototypes"></a>
-</dd>
-<dt>&lsquo;<samp>--ansi-prototypes, <code>%option ansi-prototypes</code></samp>&rsquo;</dt>
-<dd><p>Deprecated, ignored
-</p>
-<a name="option_002dbison_002dbridge"></a><a name="index-_002d_002d_002dbison_002dbridge"></a>
-<a name="index-bison_002dbridge"></a>
-</dd>
-<dt>&lsquo;<samp>--bison-bridge, <code>%option bison-bridge</code></samp>&rsquo;</dt>
-<dd><p>instructs flex to generate a C scanner that is
-meant to be called by a
-<code>GNU bison</code>
-parser. The scanner has minor API changes for
-<code>bison</code>
-compatibility. In particular, the declaration of
-<code>yylex</code>
-is modified to take an additional parameter,
-<code>yylval</code>.
-See <a href="Bison-Bridge.html#Bison-Bridge">Bison Bridge</a>.
-</p>
-<a name="option_002dbison_002dlocations"></a><a name="index-_002d_002d_002dbison_002dlocations"></a>
-<a name="index-bison_002dlocations"></a>
-</dd>
-<dt>&lsquo;<samp>--bison-locations, <code>%option bison-locations</code></samp>&rsquo;</dt>
-<dd><p>instruct flex that 
-<code>GNU bison</code> <code>%locations</code> are being used.
-This means <code>yylex</code> will be passed
-an additional parameter, <code>yylloc</code>. This option
-implies <code>%option bison-bridge</code>.
-See <a href="Bison-Bridge.html#Bison-Bridge">Bison Bridge</a>.
-</p>
-<a name="option_002dnoline"></a><a name="index-_002dL"></a>
-<a name="index-_002d_002d_002dnoline"></a>
-<a name="index-noline"></a>
-</dd>
-<dt>&lsquo;<samp>-L, --noline, <code>%option noline</code></samp>&rsquo;</dt>
-<dd><p>instructs
-<code>flex</code>
-not to generate
-<code>#line</code>
-directives.  Without this option,
-<code>flex</code>
-peppers the generated scanner
-with <code>#line</code> directives so error messages in the actions will be correctly
-located with respect to either the original
-<code>flex</code>
-input file (if the errors are due to code in the input file), or
-<samp>lex.yy.c</samp>
-(if the errors are
-<code>flex</code>&rsquo;s
-fault &ndash; you should report these sorts of errors to the email address
-given in <a href="Reporting-Bugs.html#Reporting-Bugs">Reporting Bugs</a>).
-</p>
-
-
-<a name="option_002dreentrant"></a><a name="index-_002dR"></a>
-<a name="index-_002d_002d_002dreentrant"></a>
-<a name="index-reentrant"></a>
-</dd>
-<dt>&lsquo;<samp>-R, --reentrant, <code>%option reentrant</code></samp>&rsquo;</dt>
-<dd><p>instructs flex to generate a reentrant C scanner.  The generated scanner
-may safely be used in a multi-threaded environment. The API for a
-reentrant scanner is different than for a non-reentrant scanner
-see <a href="Reentrant.html#Reentrant">Reentrant</a>).  Because of the API difference between
-reentrant and non-reentrant <code>flex</code> scanners, non-reentrant flex
-code must be modified before it is suitable for use with this option.
-This option is not compatible with the &lsquo;<samp>--c++</samp>&rsquo; option.
-</p>
-<p>The option &lsquo;<samp>--reentrant</samp>&rsquo; does not affect the performance of
-the scanner.
-</p>
-
-
-<a name="option_002dc_002b_002b"></a><a name="index-_002d_002b"></a>
-<a name="index-_002d_002d_002dc_002b_002b"></a>
-<a name="index-c_002b_002b"></a>
-</dd>
-<dt>&lsquo;<samp>-+, --c++, <code>%option c++</code></samp>&rsquo;</dt>
-<dd><p>specifies that you want flex to generate a C++
-scanner class.  See <a href="Cxx.html#Cxx">Cxx</a>, for
-details.
-</p>
-
-
-<a name="option_002darray"></a><a name="index-_002d_002d_002darray"></a>
-<a name="index-array"></a>
-</dd>
-<dt>&lsquo;<samp>--array, <code>%option array</code></samp>&rsquo;</dt>
-<dd><p>specifies that you want yytext to be an array instead of a char*
-</p>
-
-
-<a name="option_002dpointer"></a><a name="index-_002d_002d_002dpointer"></a>
-<a name="index-pointer"></a>
-</dd>
-<dt>&lsquo;<samp>--pointer, <code>%option pointer</code></samp>&rsquo;</dt>
-<dd><p>specify that  <code>yytext</code> should be a <code>char *</code>, not an array.
-This default is <code>char *</code>.
-</p>
-
-
-<a name="option_002dprefix"></a><a name="index-_002dP"></a>
-<a name="index-_002d_002d_002dprefix"></a>
-<a name="index-prefix"></a>
-</dd>
-<dt>&lsquo;<samp>-PPREFIX, --prefix=PREFIX, <code>%option prefix=&quot;PREFIX&quot;</code></samp>&rsquo;</dt>
-<dd><p>changes the default &lsquo;<samp>yy</samp>&rsquo; prefix used by <code>flex</code> for all
-globally-visible variable and function names to instead be
-&lsquo;<samp>PREFIX</samp>&rsquo;.  For example, &lsquo;<samp>--prefix=foo</samp>&rsquo; changes the name of
-<code>yytext</code> to <code>footext</code>.  It also changes the name of the default
-output file from <samp>lex.yy.c</samp> to <samp>lex.foo.c</samp>.  Here is a partial
-list of the names affected:
-</p>
-<div class="example">
-<pre class="verbatim">    yy_create_buffer
-    yy_delete_buffer
-    yy_flex_debug
-    yy_init_buffer
-    yy_flush_buffer
-    yy_load_buffer_state
-    yy_switch_to_buffer
-    yyin
-    yyleng
-    yylex
-    yylineno
-    yyout
-    yyrestart
-    yytext
-    yywrap
-    yyalloc
-    yyrealloc
-    yyfree
-</pre></div>
-
-<p>(If you are using a C++ scanner, then only <code>yywrap</code> and
-<code>yyFlexLexer</code> are affected.)  Within your scanner itself, you can
-still refer to the global variables and functions using either version
-of their name; but externally, they have the modified name.
-</p>
-<p>This option lets you easily link together multiple
-<code>flex</code>
-programs into the same executable.  Note, though, that using this
-option also renames
-<code>yywrap()</code>,
-so you now
-<em>must</em>
-either
-provide your own (appropriately-named) version of the routine for your
-scanner, or use
-<code>%option noyywrap</code>,
-as linking with
-&lsquo;<samp>-lfl</samp>&rsquo;
-no longer provides one for you by default.
-</p>
-
-
-<a name="option_002dmain"></a><a name="index-_002d_002d_002dmain"></a>
-<a name="index-main"></a>
-</dd>
-<dt>&lsquo;<samp>--main, <code>%option main</code></samp>&rsquo;</dt>
-<dd><p>directs flex to provide a default <code>main()</code> program for the
-scanner, which simply calls <code>yylex()</code>.  This option implies
-<code>noyywrap</code> (see below).
-</p>
-
-
-<a name="option_002dnounistd"></a><a name="index-_002d_002d_002dnounistd"></a>
-<a name="index-nounistd"></a>
-</dd>
-<dt>&lsquo;<samp>--nounistd, <code>%option nounistd</code></samp>&rsquo;</dt>
-<dd><p>suppresses inclusion of the non-ANSI header file <samp>unistd.h</samp>. This option
-is meant to target environments in which <samp>unistd.h</samp> does not exist. Be aware
-that certain options may cause flex to generate code that relies on functions
-normally found in <samp>unistd.h</samp>, (e.g. <code>isatty()</code>, <code>read()</code>.)
-If you wish to use these functions, you will have to inform your compiler where
-to find them.
-See <a href="Options-Affecting-Scanner-Behavior.html#option_002dalways_002dinteractive">option-always-interactive</a>. See <a href="Options-for-Scanner-Speed-and-Size.html#option_002dread">option-read</a>.
-</p>
-
-
-<a name="option_002dyyclass"></a><a name="index-_002d_002d_002dyyclass"></a>
-<a name="index-yyclass"></a>
-</dd>
-<dt>&lsquo;<samp>--yyclass=NAME, <code>%option yyclass=&quot;NAME&quot;</code></samp>&rsquo;</dt>
-<dd><p>only applies when generating a C++ scanner (the &lsquo;<samp>--c++</samp>&rsquo; option).  It
-informs <code>flex</code> that you have derived <code>NAME</code> as a subclass of
-<code>yyFlexLexer</code>, so <code>flex</code> will place your actions in the member
-function <code>foo::yylex()</code> instead of <code>yyFlexLexer::yylex()</code>.  It
-also generates a <code>yyFlexLexer::yylex()</code> member function that emits
-a run-time error (by invoking <code>yyFlexLexer::LexerError())</code> if
-called.  See <a href="Cxx.html#Cxx">Cxx</a>.
-</p>
-</dd>
-</dl>
-
-<hr>
-<div class="header">
-<p>
-Next: <a href="Options-for-Scanner-Speed-and-Size.html#Options-for-Scanner-Speed-and-Size" accesskey="n" rel="next">Options for Scanner Speed and Size</a>, Previous: <a href="Options-Affecting-Scanner-Behavior.html#Options-Affecting-Scanner-Behavior" accesskey="p" rel="prev">Options Affecting Scanner Behavior</a>, Up: <a href="Scanner-Options.html#Scanner-Options" accesskey="u" rel="up">Scanner Options</a> &nbsp; [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Indices.html#Indices" title="Index" rel="index">Index</a>]</p>
-</div>
-
-
-
-</body>
-</html>

manual/Comments-in-the-Input.html

@@ -1,148 +0,0 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
-<html>
-<!-- 
-The flex manual is placed under the same licensing conditions as the
-rest of flex:
-
-Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2012
-The Flex Project.
-
-Copyright (C) 1990, 1997 The Regents of the University of California.
-All rights reserved.
-
-This code is derived from software contributed to Berkeley by
-Vern Paxson.
-
-The United States Government has rights in this work pursuant
-to contract no. DE-AC03-76SF00098 between the United States
-Department of Energy and the University of California.
-
-Redistribution and use in source and binary forms, with or without
-modification, are permitted provided that the following conditions
-are met:
-
-1. Redistributions of source code must retain the above copyright
-notice, this list of conditions and the following disclaimer.
-
-2. Redistributions in binary form must reproduce the above copyright
-notice, this list of conditions and the following disclaimer in the
-documentation and/or other materials provided with the distribution.
-
-Neither the name of the University nor the names of its contributors
-may be used to endorse or promote products derived from this software
-without specific prior written permission.
-
-THIS SOFTWARE IS PROVIDED "AS IS" AND WITHOUT ANY EXPRESS OR
-IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
-WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
-PURPOSE. -->
-<!-- Created by GNU Texinfo 6.1, http://www.gnu.org/software/texinfo/ -->
-<head>
-<title>Lexical Analysis With Flex, for Flex 2.6.2: Comments in the Input</title>
-
-<meta name="description" content="Lexical Analysis With Flex, for Flex 2.6.2: Comments in the Input">
-<meta name="keywords" content="Lexical Analysis With Flex, for Flex 2.6.2: Comments in the Input">
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-<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
-<link href="index.html#Top" rel="start" title="Top">
-<link href="Indices.html#Indices" rel="index" title="Indices">
-<link href="index.html#SEC_Contents" rel="contents" title="Table of Contents">
-<link href="Format.html#Format" rel="up" title="Format">
-<link href="Patterns.html#Patterns" rel="next" title="Patterns">
-<link href="User-Code-Section.html#User-Code-Section" rel="prev" title="User Code Section">
-<style type="text/css">
-<!--
-a.summary-letter {text-decoration: none}
-blockquote.indentedblock {margin-right: 0em}
-blockquote.smallindentedblock {margin-right: 0em; font-size: smaller}
-blockquote.smallquotation {font-size: smaller}
-div.display {margin-left: 3.2em}
-div.example {margin-left: 3.2em}
-div.lisp {margin-left: 3.2em}
-div.smalldisplay {margin-left: 3.2em}
-div.smallexample {margin-left: 3.2em}
-div.smalllisp {margin-left: 3.2em}
-kbd {font-style: oblique}
-pre.display {font-family: inherit}
-pre.format {font-family: inherit}
-pre.menu-comment {font-family: serif}
-pre.menu-preformatted {font-family: serif}
-pre.smalldisplay {font-family: inherit; font-size: smaller}
-pre.smallexample {font-size: smaller}
-pre.smallformat {font-family: inherit; font-size: smaller}
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-span.nolinebreak {white-space: nowrap}
-span.roman {font-family: initial; font-weight: normal}
-span.sansserif {font-family: sans-serif; font-weight: normal}
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--->
-</style>
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-</head>
-
-<body lang="en">
-<a name="Comments-in-the-Input"></a>
-<div class="header">
-<p>
-Previous: <a href="User-Code-Section.html#User-Code-Section" accesskey="p" rel="prev">User Code Section</a>, Up: <a href="Format.html#Format" accesskey="u" rel="up">Format</a> &nbsp; [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Indices.html#Indices" title="Index" rel="index">Index</a>]</p>
-</div>
-<hr>
-<a name="Comments-in-the-Input-1"></a>
-<h3 class="section">5.4 Comments in the Input</h3>
-
-<a name="index-comments_002c-syntax-of"></a>
-<p>Flex supports C-style comments, that is, anything between &lsquo;<samp>/*</samp>&rsquo; and
-&lsquo;<samp>*/</samp>&rsquo; is
-considered a comment. Whenever flex encounters a comment, it copies the
-entire comment verbatim to the generated source code. Comments may
-appear just about anywhere, but with the following exceptions:
-</p>
-<ul>
-<li> <a name="index-comments_002c-in-rules-section"></a>
-Comments may not appear in the Rules Section wherever flex is expecting
-a regular expression. This means comments may not appear at the
-beginning of a line, or immediately following a list of scanner states.
-</li><li> Comments may not appear on an &lsquo;<samp>%option</samp>&rsquo; line in the Definitions
-Section.
-</li></ul>
-
-<p>If you want to follow a simple rule, then always begin a comment on a
-new line, with one or more whitespace characters before the initial
-&lsquo;<samp>/*</samp>&rsquo;).  This rule will work anywhere in the input file.
-</p>
-<p>All the comments in the following example are valid:
-</p>
-<a name="index-comments_002c-valid-uses-of"></a>
-<a name="index-comments-in-the-input"></a>
-<div class="example">
-<pre class="verbatim">%{
-/* code block */
-%}
-
-/* Definitions Section */
-%x STATE_X
-
-%%
-    /* Rules Section */
-ruleA   /* after regex */ { /* code block */ } /* after code block */
-        /* Rules Section (indented) */
-&lt;STATE_X&gt;{
-ruleC   ECHO;
-ruleD   ECHO;
-%{
-/* code block */
-%}
-}
-%%
-/* User Code Section */
-
-</pre></div>
-
-
-
-
-</body>
-</html>

manual/Common-Patterns.html

@@ -1,116 +0,0 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
-<html>
-<!-- 
-The flex manual is placed under the same licensing conditions as the
-rest of flex:
-
-Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2012
-The Flex Project.
-
-Copyright (C) 1990, 1997 The Regents of the University of California.
-All rights reserved.
-
-This code is derived from software contributed to Berkeley by
-Vern Paxson.
-
-The United States Government has rights in this work pursuant
-to contract no. DE-AC03-76SF00098 between the United States
-Department of Energy and the University of California.
-
-Redistribution and use in source and binary forms, with or without
-modification, are permitted provided that the following conditions
-are met:
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-1. Redistributions of source code must retain the above copyright
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-
-<table><tr><th valign="top">Jump to: &nbsp; </th><td><a class="summary-letter" href="#Concept-Index_cp_symbol-1"><b>$</b></a>
- &nbsp; 
-<a class="summary-letter" href="#Concept-Index_cp_symbol-2"><b>%</b></a>
- &nbsp; 
-<a class="summary-letter" href="#Concept-Index_cp_symbol-3"><b>&lt;</b></a>
- &nbsp; 
-<a class="summary-letter" href="#Concept-Index_cp_symbol-4"><b>[</b></a>
- &nbsp; 
-<a class="summary-letter" href="#Concept-Index_cp_symbol-5"><b>^</b></a>
- &nbsp; 
-<a class="summary-letter" href="#Concept-Index_cp_symbol-6"><b>|</b></a>
- &nbsp; 
-<br>
-<a class="summary-letter" href="#Concept-Index_cp_letter-A"><b>A</b></a>
- &nbsp; 
-<a class="summary-letter" href="#Concept-Index_cp_letter-B"><b>B</b></a>
- &nbsp; 
-<a class="summary-letter" href="#Concept-Index_cp_letter-C"><b>C</b></a>
- &nbsp; 
-<a class="summary-letter" href="#Concept-Index_cp_letter-D"><b>D</b></a>
- &nbsp; 
-<a class="summary-letter" href="#Concept-Index_cp_letter-E"><b>E</b></a>
- &nbsp; 
-<a class="summary-letter" href="#Concept-Index_cp_letter-F"><b>F</b></a>
- &nbsp; 
-<a class="summary-letter" href="#Concept-Index_cp_letter-G"><b>G</b></a>
- &nbsp; 
-<a class="summary-letter" href="#Concept-Index_cp_letter-H"><b>H</b></a>
- &nbsp; 
-<a class="summary-letter" href="#Concept-Index_cp_letter-I"><b>I</b></a>
- &nbsp; 
-<a class="summary-letter" href="#Concept-Index_cp_letter-K"><b>K</b></a>
- &nbsp; 
-<a class="summary-letter" href="#Concept-Index_cp_letter-L"><b>L</b></a>
- &nbsp; 
-<a class="summary-letter" href="#Concept-Index_cp_letter-M"><b>M</b></a>
- &nbsp; 
-<a class="summary-letter" href="#Concept-Index_cp_letter-N"><b>N</b></a>
- &nbsp; 
-<a class="summary-letter" href="#Concept-Index_cp_letter-O"><b>O</b></a>
- &nbsp; 
-<a class="summary-letter" href="#Concept-Index_cp_letter-P"><b>P</b></a>
- &nbsp; 
-<a class="summary-letter" href="#Concept-Index_cp_letter-R"><b>R</b></a>
- &nbsp; 
-<a class="summary-letter" href="#Concept-Index_cp_letter-S"><b>S</b></a>
- &nbsp; 
-<a class="summary-letter" href="#Concept-Index_cp_letter-T"><b>T</b></a>
- &nbsp; 
-<a class="summary-letter" href="#Concept-Index_cp_letter-U"><b>U</b></a>
- &nbsp; 
-<a class="summary-letter" href="#Concept-Index_cp_letter-V"><b>V</b></a>
- &nbsp; 
-<a class="summary-letter" href="#Concept-Index_cp_letter-W"><b>W</b></a>
- &nbsp; 
-<a class="summary-letter" href="#Concept-Index_cp_letter-Y"><b>Y</b></a>
- &nbsp; 
-</td></tr></table>
-<table class="index-cp" border="0">
-<tr><td></td><th align="left">Index Entry</th><td>&nbsp;</td><th align="left"> Section</th></tr>
-<tr><td colspan="4"> <hr></td></tr>
-<tr><th><a name="Concept-Index_cp_symbol-1">$</a></th><td></td><td></td></tr>
-<tr><td></td><td valign="top"><a href="Patterns.html#index-_0024-as-normal-character-in-patterns">$ as normal character in patterns</a>:</td><td>&nbsp;</td><td valign="top"><a href="Patterns.html#Patterns">Patterns</a></td></tr>
-<tr><td colspan="4"> <hr></td></tr>
-<tr><th><a name="Concept-Index_cp_symbol-2">%</a></th><td></td><td></td></tr>
-<tr><td></td><td valign="top"><a href="Matching.html#index-_0025array_002c-advantages-of">%array, advantages of</a>:</td><td>&nbsp;</td><td valign="top"><a href="Matching.html#Matching">Matching</a></td></tr>
-<tr><td></td><td valign="top"><a href="Matching.html#index-_0025array_002c-use-of">%array, use of</a>:</td><td>&nbsp;</td><td valign="top"><a href="Matching.html#Matching">Matching</a></td></tr>
-<tr><td></td><td valign="top"><a href="Matching.html#index-_0025array_002c-with-C_002b_002b">%array, with C++</a>:</td><td>&nbsp;</td><td valign="top"><a href="Matching.html#Matching">Matching</a></td></tr>
-<tr><td></td><td valign="top"><a href="Generated-Scanner.html#index-_0025option-noyywrapp">%option noyywrapp</a>:</td><td>&nbsp;</td><td valign="top"><a href="Generated-Scanner.html#Generated-Scanner">Generated Scanner</a></td></tr>
-<tr><td></td><td valign="top"><a href="Actions.html#index-_0025pointer_002c-and-unput_0028_0029">%pointer, and unput()</a>:</td><td>&nbsp;</td><td valign="top"><a href="Actions.html#Actions">Actions</a></td></tr>
-<tr><td></td><td valign="top"><a href="Matching.html#index-_0025pointer_002c-use-of">%pointer, use of</a>:</td><td>&nbsp;</td><td valign="top"><a href="Matching.html#Matching">Matching</a></td></tr>
-<tr><td></td><td valign="top"><a href="Definitions-Section.html#index-_0025top">%top</a>:</td><td>&nbsp;</td><td valign="top"><a href="Definitions-Section.html#Definitions-Section">Definitions Section</a></td></tr>
-<tr><td></td><td valign="top"><a href="Definitions-Section.html#index-_0025_007b-and-_0025_007d_002c-in-Definitions-Section">%{ and %}, in Definitions Section</a>:</td><td>&nbsp;</td><td valign="top"><a href="Definitions-Section.html#Definitions-Section">Definitions Section</a></td></tr>
-<tr><td></td><td valign="top"><a href="Actions.html#index-_0025_007b-and-_0025_007d_002c-in-Rules-Section">%{ and %}, in Rules Section</a>:</td><td>&nbsp;</td><td valign="top"><a href="Actions.html#Actions">Actions</a></td></tr>
-<tr><td colspan="4"> <hr></td></tr>
-<tr><th><a name="Concept-Index_cp_symbol-3">&lt;</a></th><td></td><td></td></tr>
-<tr><td></td><td valign="top"><a href="EOF.html#index-_003c_003cEOF_003e_003e_002c-use-of">&lt;&lt;EOF&gt;&gt;, use of</a>:</td><td>&nbsp;</td><td valign="top"><a href="EOF.html#EOF">EOF</a></td></tr>
-<tr><td colspan="4"> <hr></td></tr>
-<tr><th><a name="Concept-Index_cp_symbol-4">[</a></th><td></td><td></td></tr>
-<tr><td></td><td valign="top"><a href="Patterns.html#index-_005b_005d-in-patterns">[] in patterns</a>:</td><td>&nbsp;</td><td valign="top"><a href="Patterns.html#Patterns">Patterns</a></td></tr>
-<tr><td colspan="4"> <hr></td></tr>
-<tr><th><a name="Concept-Index_cp_symbol-5">^</a></th><td></td><td></td></tr>
-<tr><td></td><td valign="top"><a href="Patterns.html#index-_005e-as-non_002dspecial-character-in-patterns">^ as non-special character in patterns</a>:</td><td>&nbsp;</td><td valign="top"><a href="Patterns.html#Patterns">Patterns</a></td></tr>
-<tr><td colspan="4"> <hr></td></tr>
-<tr><th><a name="Concept-Index_cp_symbol-6">|</a></th><td></td><td></td></tr>
-<tr><td></td><td valign="top"><a href="Actions.html#index-_007c_002c-in-actions">|, in actions</a>:</td><td>&nbsp;</td><td valign="top"><a href="Actions.html#Actions">Actions</a></td></tr>
-<tr><td></td><td valign="top"><a href="Actions.html#index-_007c_002c-use-of">|, use of</a>:</td><td>&nbsp;</td><td valign="top"><a href="Actions.html#Actions">Actions</a></td></tr>
-<tr><td colspan="4"> <hr></td></tr>
-<tr><th><a name="Concept-Index_cp_letter-A">A</a></th><td></td><td></td></tr>
-<tr><td></td><td valign="top"><a href="Accessor-Methods.html#index-accessor-functions_002c-use-of">accessor functions, use of</a>:</td><td>&nbsp;</td><td valign="top"><a href="Accessor-Methods.html#Accessor-Methods">Accessor Methods</a></td></tr>
-<tr><td></td><td valign="top"><a href="Actions.html#index-actions">actions</a>:</td><td>&nbsp;</td><td valign="top"><a href="Actions.html#Actions">Actions</a></td></tr>
-<tr><td></td><td valign="top"><a href="Actions.html#index-actions_002c-embedded-C-strings">actions, embedded C strings</a>:</td><td>&nbsp;</td><td valign="top"><a href="Actions.html#Actions">Actions</a></td></tr>
-<tr><td></td><td valign="top"><a href="Misc-Macros.html#index-actions_002c-redefining-YY_005fBREAK">actions, redefining YY_BREAK</a>:</td><td>&nbsp;</td><td valign="top"><a href="Misc-Macros.html#Misc-Macros">Misc Macros</a></td></tr>
-<tr><td></td><td valign="top"><a href="Actions.html#index-actions_002c-use-of-_007b-and-_007d">actions, use of { and }</a>:</td><td>&nbsp;</td><td valign="top"><a href="Actions.html#Actions">Actions</a></td></tr>
-<tr><td></td><td valign="top"><a href="Definitions-Section.html#index-aliases_002c-how-to-define">aliases, how to define</a>:</td><td>&nbsp;</td><td valign="top"><a href="Definitions-Section.html#Definitions-Section">Definitions Section</a></td></tr>
-<tr><td></td><td valign="top"><a href="Scanner-Options.html#index-arguments_002c-command_002dline">arguments, command-line</a>:</td><td>&nbsp;</td><td valign="top"><a href="Scanner-Options.html#Scanner-Options">Scanner Options</a></td></tr>
-<tr><td></td><td valign="top"><a href="User-Values.html#index-array_002c-default-size-for-yytext">array, default size for yytext</a>:</td><td>&nbsp;</td><td valign="top"><a href="User-Values.html#User-Values">User Values</a></td></tr>
-<tr><td colspan="4"> <hr></td></tr>
-<tr><th><a name="Concept-Index_cp_letter-B">B</a></th><td></td><td></td></tr>
-<tr><td></td><td valign="top"><a href="Performance.html#index-backing-up_002c-eliminating">backing up, eliminating</a>:</td><td>&nbsp;</td><td valign="top"><a href="Performance.html#Performance">Performance</a></td></tr>
-<tr><td></td><td valign="top"><a href="Performance.html#index-backing-up_002c-eliminating-by-adding-error-rules">backing up, eliminating by adding error rules</a>:</td><td>&nbsp;</td><td valign="top"><a href="Performance.html#Performance">Performance</a></td></tr>
-<tr><td></td><td valign="top"><a href="Performance.html#index-backing-up_002c-eliminating-with-catch_002dall-rule">backing up, eliminating with catch-all rule</a>:</td><td>&nbsp;</td><td valign="top"><a href="Performance.html#Performance">Performance</a></td></tr>
-<tr><td></td><td valign="top"><a href="Performance.html#index-backing-up_002c-example-of-eliminating">backing up, example of eliminating</a>:</td><td>&nbsp;</td><td valign="top"><a href="Performance.html#Performance">Performance</a></td></tr>
-<tr><td></td><td valign="top"><a href="Actions.html#index-BEGIN">BEGIN</a>:</td><td>&nbsp;</td><td valign="top"><a href="Actions.html#Actions">Actions</a></td></tr>
-<tr><td></td><td valign="top"><a href="Start-Conditions.html#index-BEGIN_002c-explanation">BEGIN, explanation</a>:</td><td>&nbsp;</td><td valign="top"><a href="Start-Conditions.html#Start-Conditions">Start Conditions</a></td></tr>
-<tr><td></td><td valign="top"><a href="Patterns.html#index-beginning-of-line_002c-in-patterns">beginning of line, in patterns</a>:</td><td>&nbsp;</td><td valign="top"><a href="Patterns.html#Patterns">Patterns</a></td></tr>
-<tr><td></td><td valign="top"><a href="Bison-Bridge.html#index-bison_002c-bridging-with-flex">bison, bridging with flex</a>:</td><td>&nbsp;</td><td valign="top"><a href="Bison-Bridge.html#Bison-Bridge">Bison Bridge</a></td></tr>
-<tr><td></td><td valign="top"><a href="Bison-Bridge.html#index-bison_002c-parser">bison, parser</a>:</td><td>&nbsp;</td><td valign="top"><a href="Bison-Bridge.html#Bison-Bridge">Bison Bridge</a></td></tr>
-<tr><td></td><td valign="top"><a href="Bison-Bridge.html#index-bison_002c-scanner-to-be-called-from-bison">bison, scanner to be called from bison</a>:</td><td>&nbsp;</td><td valign="top"><a href="Bison-Bridge.html#Bison-Bridge">Bison Bridge</a></td></tr>
-<tr><td></td><td valign="top"><a href="Misc-Macros.html#index-BOL_002c-checking-the-BOL-flag">BOL, checking the BOL flag</a>:</td><td>&nbsp;</td><td valign="top"><a href="Misc-Macros.html#Misc-Macros">Misc Macros</a></td></tr>
-<tr><td></td><td valign="top"><a href="Patterns.html#index-BOL_002c-in-patterns">BOL, in patterns</a>:</td><td>&nbsp;</td><td valign="top"><a href="Patterns.html#Patterns">Patterns</a></td></tr>
-<tr><td></td><td valign="top"><a href="Misc-Macros.html#index-BOL_002c-setting-it">BOL, setting it</a>:</td><td>&nbsp;</td><td valign="top"><a href="Misc-Macros.html#Misc-Macros">Misc Macros</a></td></tr>
-<tr><td></td><td valign="top"><a href="Patterns.html#index-braces-in-patterns">braces in patterns</a>:</td><td>&nbsp;</td><td valign="top"><a href="Patterns.html#Patterns">Patterns</a></td></tr>
-<tr><td></td><td valign="top"><a href="Reporting-Bugs.html#index-bugs_002c-reporting">bugs, reporting</a>:</td><td>&nbsp;</td><td valign="top"><a href="Reporting-Bugs.html#Reporting-Bugs">Reporting Bugs</a></td></tr>
-<tr><td colspan="4"> <hr></td></tr>
-<tr><th><a name="Concept-Index_cp_letter-C">C</a></th><td></td><td></td></tr>
-<tr><td></td><td valign="top"><a href="Definitions-Section.html#index-C-code-in-flex-input">C code in flex input</a>:</td><td>&nbsp;</td><td valign="top"><a href="Definitions-Section.html#Definitions-Section">Definitions Section</a></td></tr>
-<tr><td></td><td valign="top"><a href="Cxx.html#index-C_002b_002b">C++</a>:</td><td>&nbsp;</td><td valign="top"><a href="Cxx.html#Cxx">Cxx</a></td></tr>
-<tr><td></td><td valign="top"><a href="User-Values.html#index-C_002b_002b-and-_0025array">C++ and %array</a>:</td><td>&nbsp;</td><td valign="top"><a href="User-Values.html#User-Values">User Values</a></td></tr>
-<tr><td></td><td valign="top"><a href="How-do-I-use-my-own-I_002fO-classes-in-a-C_002b_002b-scanner_003f.html#index-C_002b_002b-I_002fO_002c-customizing">C++ I/O, customizing</a>:</td><td>&nbsp;</td><td valign="top"><a href="How-do-I-use-my-own-I_002fO-classes-in-a-C_002b_002b-scanner_003f.html#How-do-I-use-my-own-I_002fO-classes-in-a-C_002b_002b-scanner_003f">How do I use my own I/O classes in a C++ scanner?</a></td></tr>
-<tr><td></td><td valign="top"><a href="Cxx.html#index-C_002b_002b-scanners_002c-including-multiple-scanners">C++ scanners, including multiple scanners</a>:</td><td>&nbsp;</td><td valign="top"><a href="Cxx.html#Cxx">Cxx</a></td></tr>
-<tr><td></td><td valign="top"><a href="Cxx.html#index-C_002b_002b-scanners_002c-use-of">C++ scanners, use of</a>:</td><td>&nbsp;</td><td valign="top"><a href="Cxx.html#Cxx">Cxx</a></td></tr>
-<tr><td></td><td valign="top"><a href="Cxx.html#index-c_002b_002b_002c-experimental-form-of-scanner-class">c++, experimental form of scanner class</a>:</td><td>&nbsp;</td><td valign="top"><a href="Cxx.html#Cxx">Cxx</a></td></tr>
-<tr><td></td><td valign="top"><a href="Cxx.html#index-C_002b_002b_002c-multiple-different-scanners">C++, multiple different scanners</a>:</td><td>&nbsp;</td><td valign="top"><a href="Cxx.html#Cxx">Cxx</a></td></tr>
-<tr><td></td><td valign="top"><a href="Actions.html#index-C_002dstrings_002c-in-actions">C-strings, in actions</a>:</td><td>&nbsp;</td><td valign="top"><a href="Actions.html#Actions">Actions</a></td></tr>
-<tr><td></td><td valign="top"><a href="Patterns.html#index-case_002dinsensitive_002c-effect-on-character-classes">case-insensitive, effect on character classes</a>:</td><td>&nbsp;</td><td valign="top"><a href="Patterns.html#Patterns">Patterns</a></td></tr>
-<tr><td></td><td valign="top"><a href="Patterns.html#index-character-classes-in-patterns">character classes in patterns</a>:</td><td>&nbsp;</td><td valign="top"><a href="Patterns.html#Patterns">Patterns</a></td></tr>
-<tr><td></td><td valign="top"><a href="Patterns.html#index-character-classes-in-patterns_002c-syntax-of">character classes in patterns, syntax of</a>:</td><td>&nbsp;</td><td valign="top"><a href="Patterns.html#Patterns">Patterns</a></td></tr>
-<tr><td></td><td valign="top"><a href="Patterns.html#index-character-classes_002c-equivalence-of">character classes, equivalence of</a>:</td><td>&nbsp;</td><td valign="top"><a href="Patterns.html#Patterns">Patterns</a></td></tr>
-<tr><td></td><td valign="top"><a href="Multiple-Input-Buffers.html#index-clearing-an-input-buffer">clearing an input buffer</a>:</td><td>&nbsp;</td><td valign="top"><a href="Multiple-Input-Buffers.html#Multiple-Input-Buffers">Multiple Input Buffers</a></td></tr>
-<tr><td></td><td valign="top"><a href="Scanner-Options.html#index-command_002dline-options">command-line options</a>:</td><td>&nbsp;</td><td valign="top"><a href="Scanner-Options.html#Scanner-Options">Scanner Options</a></td></tr>
-<tr><td></td><td valign="top"><a href="Definitions-Section.html#index-comments-in-flex-input">comments in flex input</a>:</td><td>&nbsp;</td><td valign="top"><a href="Definitions-Section.html#Definitions-Section">Definitions Section</a></td></tr>
-<tr><td></td><td valign="top"><a href="Comments-in-the-Input.html#index-comments-in-the-input">comments in the input</a>:</td><td>&nbsp;</td><td valign="top"><a href="Comments-in-the-Input.html#Comments-in-the-Input">Comments in the Input</a></td></tr>
-<tr><td></td><td valign="top"><a href="Actions.html#index-comments_002c-discarding">comments, discarding</a>:</td><td>&nbsp;</td><td valign="top"><a href="Actions.html#Actions">Actions</a></td></tr>
-<tr><td></td><td valign="top"><a href="Start-Conditions.html#index-comments_002c-example-of-scanning-C-comments">comments, example of scanning C comments</a>:</td><td>&nbsp;</td><td valign="top"><a href="Start-Conditions.html#Start-Conditions">Start Conditions</a></td></tr>
-<tr><td></td><td valign="top"><a href="Actions.html#index-comments_002c-in-actions">comments, in actions</a>:</td><td>&nbsp;</td><td valign="top"><a href="Actions.html#Actions">Actions</a></td></tr>
-<tr><td></td><td valign="top"><a href="Comments-in-the-Input.html#index-comments_002c-in-rules-section">comments, in rules section</a>:</td><td>&nbsp;</td><td valign="top"><a href="Comments-in-the-Input.html#Comments-in-the-Input">Comments in the Input</a></td></tr>
-<tr><td></td><td valign="top"><a href="Comments-in-the-Input.html#index-comments_002c-syntax-of">comments, syntax of</a>:</td><td>&nbsp;</td><td valign="top"><a href="Comments-in-the-Input.html#Comments-in-the-Input">Comments in the Input</a></td></tr>
-<tr><td></td><td valign="top"><a href="Comments-in-the-Input.html#index-comments_002c-valid-uses-of">comments, valid uses of</a>:</td><td>&nbsp;</td><td valign="top"><a href="Comments-in-the-Input.html#Comments-in-the-Input">Comments in the Input</a></td></tr>
-<tr><td></td><td valign="top"><a href="Actions.html#index-compressing-whitespace">compressing whitespace</a>:</td><td>&nbsp;</td><td valign="top"><a href="Actions.html#Actions">Actions</a></td></tr>
-<tr><td></td><td valign="top"><a href="Patterns.html#index-concatenation_002c-in-patterns">concatenation, in patterns</a>:</td><td>&nbsp;</td><td valign="top"><a href="Patterns.html#Patterns">Patterns</a></td></tr>
-<tr><td></td><td valign="top"><a href="Copyright.html#index-copyright-of-flex">copyright of flex</a>:</td><td>&nbsp;</td><td valign="top"><a href="Copyright.html#Copyright">Copyright</a></td></tr>
-<tr><td></td><td valign="top"><a href="Simple-Examples.html#index-counting-characters-and-lines">counting characters and lines</a>:</td><td>&nbsp;</td><td valign="top"><a href="Simple-Examples.html#Simple-Examples">Simple Examples</a></td></tr>
-<tr><td></td><td valign="top"><a href="How-do-I-use-my-own-I_002fO-classes-in-a-C_002b_002b-scanner_003f.html#index-customizing-I_002fO-in-C_002b_002b-scanners">customizing I/O in C++ scanners</a>:</td><td>&nbsp;</td><td valign="top"><a href="How-do-I-use-my-own-I_002fO-classes-in-a-C_002b_002b-scanner_003f.html#How-do-I-use-my-own-I_002fO-classes-in-a-C_002b_002b-scanner_003f">How do I use my own I/O classes in a C++ scanner?</a></td></tr>
-<tr><td colspan="4"> <hr></td></tr>
-<tr><th><a name="Concept-Index_cp_letter-D">D</a></th><td></td><td></td></tr>
-<tr><td></td><td valign="top"><a href="Simple-Examples.html#index-default-rule">default rule</a>:</td><td>&nbsp;</td><td valign="top"><a href="Simple-Examples.html#Simple-Examples">Simple Examples</a></td></tr>
-<tr><td></td><td valign="top"><a href="Matching.html#index-default-rule-1">default rule</a>:</td><td>&nbsp;</td><td valign="top"><a href="Matching.html#Matching">Matching</a></td></tr>
-<tr><td></td><td valign="top"><a href="Definitions-Section.html#index-defining-pattern-aliases">defining pattern aliases</a>:</td><td>&nbsp;</td><td valign="top"><a href="Definitions-Section.html#Definitions-Section">Definitions Section</a></td></tr>
-<tr><td></td><td valign="top"><a href="Definitions-Section.html#index-Definitions_002c-in-flex-input">Definitions, in flex input</a>:</td><td>&nbsp;</td><td valign="top"><a href="Definitions-Section.html#Definitions-Section">Definitions Section</a></td></tr>
-<tr><td></td><td valign="top"><a href="Actions.html#index-deleting-lines-from-input">deleting lines from input</a>:</td><td>&nbsp;</td><td valign="top"><a href="Actions.html#Actions">Actions</a></td></tr>
-<tr><td></td><td valign="top"><a href="Actions.html#index-discarding-C-comments">discarding C comments</a>:</td><td>&nbsp;</td><td valign="top"><a href="Actions.html#Actions">Actions</a></td></tr>
-<tr><td></td><td valign="top"><a href="Copyright.html#index-distributing-flex">distributing flex</a>:</td><td>&nbsp;</td><td valign="top"><a href="Copyright.html#Copyright">Copyright</a></td></tr>
-<tr><td colspan="4"> <hr></td></tr>
-<tr><th><a name="Concept-Index_cp_letter-E">E</a></th><td></td><td></td></tr>
-<tr><td></td><td valign="top"><a href="Actions.html#index-ECHO">ECHO</a>:</td><td>&nbsp;</td><td valign="top"><a href="Actions.html#Actions">Actions</a></td></tr>
-<tr><td></td><td valign="top"><a href="Generated-Scanner.html#index-ECHO_002c-and-yyout">ECHO, and yyout</a>:</td><td>&nbsp;</td><td valign="top"><a href="Generated-Scanner.html#Generated-Scanner">Generated Scanner</a></td></tr>
-<tr><td></td><td valign="top"><a href="Definitions-Section.html#index-embedding-C-code-in-flex-input">embedding C code in flex input</a>:</td><td>&nbsp;</td><td valign="top"><a href="Definitions-Section.html#Definitions-Section">Definitions Section</a></td></tr>
-<tr><td></td><td valign="top"><a href="Patterns.html#index-end-of-file_002c-in-patterns">end of file, in patterns</a>:</td><td>&nbsp;</td><td valign="top"><a href="Patterns.html#Patterns">Patterns</a></td></tr>
-<tr><td></td><td valign="top"><a href="Patterns.html#index-end-of-line_002c-in-negated-character-classes">end of line, in negated character classes</a>:</td><td>&nbsp;</td><td valign="top"><a href="Patterns.html#Patterns">Patterns</a></td></tr>
-<tr><td></td><td valign="top"><a href="Patterns.html#index-end-of-line_002c-in-patterns">end of line, in patterns</a>:</td><td>&nbsp;</td><td valign="top"><a href="Patterns.html#Patterns">Patterns</a></td></tr>
-<tr><td></td><td valign="top"><a href="Generated-Scanner.html#index-end_002dof_002dfile_002c-and-yyrestart_0028_0029">end-of-file, and yyrestart()</a>:</td><td>&nbsp;</td><td valign="top"><a href="Generated-Scanner.html#Generated-Scanner">Generated Scanner</a></td></tr>
-<tr><td></td><td valign="top"><a href="Generated-Scanner.html#index-EOF-and-yyrestart_0028_0029">EOF and yyrestart()</a>:</td><td>&nbsp;</td><td valign="top"><a href="Generated-Scanner.html#Generated-Scanner">Generated Scanner</a></td></tr>
-<tr><td></td><td valign="top"><a href="Patterns.html#index-EOF-in-patterns_002c-syntax-of">EOF in patterns, syntax of</a>:</td><td>&nbsp;</td><td valign="top"><a href="Patterns.html#Patterns">Patterns</a></td></tr>
-<tr><td></td><td valign="top"><a href="Multiple-Input-Buffers.html#index-EOF_002c-example-using-multiple-input-buffers">EOF, example using multiple input buffers</a>:</td><td>&nbsp;</td><td valign="top"><a href="Multiple-Input-Buffers.html#Multiple-Input-Buffers">Multiple Input Buffers</a></td></tr>
-<tr><td></td><td valign="top"><a href="EOF.html#index-EOF_002c-explanation">EOF, explanation</a>:</td><td>&nbsp;</td><td valign="top"><a href="EOF.html#EOF">EOF</a></td></tr>
-<tr><td></td><td valign="top"><a href="Actions.html#index-EOF_002c-pushing-back">EOF, pushing back</a>:</td><td>&nbsp;</td><td valign="top"><a href="Actions.html#Actions">Actions</a></td></tr>
-<tr><td></td><td valign="top"><a href="Patterns.html#index-EOL_002c-in-negated-character-classes">EOL, in negated character classes</a>:</td><td>&nbsp;</td><td valign="top"><a href="Patterns.html#Patterns">Patterns</a></td></tr>
-<tr><td></td><td valign="top"><a href="Patterns.html#index-EOL_002c-in-patterns">EOL, in patterns</a>:</td><td>&nbsp;</td><td valign="top"><a href="Patterns.html#Patterns">Patterns</a></td></tr>
-<tr><td></td><td valign="top"><a href="Lex-and-Posix.html#index-error-messages_002c-end-of-buffer-missed">error messages, end of buffer missed</a>:</td><td>&nbsp;</td><td valign="top"><a href="Lex-and-Posix.html#Lex-and-Posix">Lex and Posix</a></td></tr>
-<tr><td></td><td valign="top"><a href="Diagnostics.html#index-error-reporting_002c-diagnostic-messages">error reporting, diagnostic messages</a>:</td><td>&nbsp;</td><td valign="top"><a href="Diagnostics.html#Diagnostics">Diagnostics</a></td></tr>
-<tr><td></td><td valign="top"><a href="Cxx.html#index-error-reporting_002c-in-C_002b_002b">error reporting, in C++</a>:</td><td>&nbsp;</td><td valign="top"><a href="Cxx.html#Cxx">Cxx</a></td></tr>
-<tr><td></td><td valign="top"><a href="Performance.html#index-error-rules_002c-to-eliminate-backing-up">error rules, to eliminate backing up</a>:</td><td>&nbsp;</td><td valign="top"><a href="Performance.html#Performance">Performance</a></td></tr>
-<tr><td></td><td valign="top"><a href="Patterns.html#index-escape-sequences-in-patterns_002c-syntax-of">escape sequences in patterns, syntax of</a>:</td><td>&nbsp;</td><td valign="top"><a href="Patterns.html#Patterns">Patterns</a></td></tr>
-<tr><td></td><td valign="top"><a href="Actions.html#index-exiting-with-yyterminate_0028_0029">exiting with yyterminate()</a>:</td><td>&nbsp;</td><td valign="top"><a href="Actions.html#Actions">Actions</a></td></tr>
-<tr><td></td><td valign="top"><a href="Cxx.html#index-experimental-form-of-c_002b_002b-scanner-class">experimental form of c++ scanner class</a>:</td><td>&nbsp;</td><td valign="top"><a href="Cxx.html#Cxx">Cxx</a></td></tr>
-<tr><td></td><td valign="top"><a href="Start-Conditions.html#index-extended-scope-of-start-conditions">extended scope of start conditions</a>:</td><td>&nbsp;</td><td valign="top"><a href="Start-Conditions.html#Start-Conditions">Start Conditions</a></td></tr>
-<tr><td colspan="4"> <hr></td></tr>
-<tr><th><a name="Concept-Index_cp_letter-F">F</a></th><td></td><td></td></tr>
-<tr><td></td><td valign="top"><a href="Format.html#index-file-format">file format</a>:</td><td>&nbsp;</td><td valign="top"><a href="Format.html#Format">Format</a></td></tr>
-<tr><td></td><td valign="top"><a href="Tables-File-Format.html#index-file-format_002c-serialized-tables">file format, serialized tables</a>:</td><td>&nbsp;</td><td valign="top"><a href="Tables-File-Format.html#Tables-File-Format">Tables File Format</a></td></tr>
-<tr><td></td><td valign="top"><a href="Multiple-Input-Buffers.html#index-flushing-an-input-buffer">flushing an input buffer</a>:</td><td>&nbsp;</td><td valign="top"><a href="Multiple-Input-Buffers.html#Multiple-Input-Buffers">Multiple Input Buffers</a></td></tr>
-<tr><td></td><td valign="top"><a href="Actions.html#index-flushing-the-internal-buffer">flushing the internal buffer</a>:</td><td>&nbsp;</td><td valign="top"><a href="Actions.html#Actions">Actions</a></td></tr>
-<tr><td></td><td valign="top"><a href="Format.html#index-format-of-flex-input">format of flex input</a>:</td><td>&nbsp;</td><td valign="top"><a href="Format.html#Format">Format</a></td></tr>
-<tr><td></td><td valign="top"><a href="Format.html#index-format-of-input-file">format of input file</a>:</td><td>&nbsp;</td><td valign="top"><a href="Format.html#Format">Format</a></td></tr>
-<tr><td></td><td valign="top"><a href="Loading-and-Unloading-Serialized-Tables.html#index-freeing-tables">freeing tables</a>:</td><td>&nbsp;</td><td valign="top"><a href="Loading-and-Unloading-Serialized-Tables.html#Loading-and-Unloading-Serialized-Tables">Loading and Unloading Serialized Tables</a></td></tr>
-<tr><td colspan="4"> <hr></td></tr>
-<tr><th><a name="Concept-Index_cp_letter-G">G</a></th><td></td><td></td></tr>
-<tr><td></td><td valign="top"><a href="Start-Conditions.html#index-getting-current-start-state-with-YY_005fSTART">getting current start state with YY_START</a>:</td><td>&nbsp;</td><td valign="top"><a href="Start-Conditions.html#Start-Conditions">Start Conditions</a></td></tr>
-<tr><td colspan="4"> <hr></td></tr>
-<tr><th><a name="Concept-Index_cp_letter-H">H</a></th><td></td><td></td></tr>
-<tr><td></td><td valign="top"><a href="Actions.html#index-halting-with-yyterminate_0028_0029">halting with yyterminate()</a>:</td><td>&nbsp;</td><td valign="top"><a href="Actions.html#Actions">Actions</a></td></tr>
-<tr><td></td><td valign="top"><a href="Multiple-Input-Buffers.html#index-handling-include-files-with-multiple-input-buffers">handling include files with multiple input buffers</a>:</td><td>&nbsp;</td><td valign="top"><a href="Multiple-Input-Buffers.html#Multiple-Input-Buffers">Multiple Input Buffers</a></td></tr>
-<tr><td></td><td valign="top"><a href="Multiple-Input-Buffers.html#index-handling-include-files-with-multiple-input-buffers-1">handling include files with multiple input buffers</a>:</td><td>&nbsp;</td><td valign="top"><a href="Multiple-Input-Buffers.html#Multiple-Input-Buffers">Multiple Input Buffers</a></td></tr>
-<tr><td></td><td valign="top"><a href="Cxx.html#index-header-files_002c-with-C_002b_002b">header files, with C++</a>:</td><td>&nbsp;</td><td valign="top"><a href="Cxx.html#Cxx">Cxx</a></td></tr>
-<tr><td colspan="4"> <hr></td></tr>
-<tr><th><a name="Concept-Index_cp_letter-I">I</a></th><td></td><td></td></tr>
-<tr><td></td><td valign="top"><a href="Cxx.html#index-include-files_002c-with-C_002b_002b">include files, with C++</a>:</td><td>&nbsp;</td><td valign="top"><a href="Cxx.html#Cxx">Cxx</a></td></tr>
-<tr><td></td><td valign="top"><a href="Definitions-Section.html#index-input-file_002c-Definitions-section">input file, Definitions section</a>:</td><td>&nbsp;</td><td valign="top"><a href="Definitions-Section.html#Definitions-Section">Definitions Section</a></td></tr>
-<tr><td></td><td valign="top"><a href="Rules-Section.html#index-input-file_002c-Rules-Section">input file, Rules Section</a>:</td><td>&nbsp;</td><td valign="top"><a href="Rules-Section.html#Rules-Section">Rules Section</a></td></tr>
-<tr><td></td><td valign="top"><a href="User-Code-Section.html#index-input-file_002c-user-code-Section">input file, user code Section</a>:</td><td>&nbsp;</td><td valign="top"><a href="User-Code-Section.html#User-Code-Section">User Code Section</a></td></tr>
-<tr><td></td><td valign="top"><a href="Actions.html#index-input_0028_0029">input()</a>:</td><td>&nbsp;</td><td valign="top"><a href="Actions.html#Actions">Actions</a></td></tr>
-<tr><td></td><td valign="top"><a href="Actions.html#index-input_0028_0029_002c-and-C_002b_002b">input(), and C++</a>:</td><td>&nbsp;</td><td valign="top"><a href="Actions.html#Actions">Actions</a></td></tr>
-<tr><td></td><td valign="top"><a href="Format.html#index-input_002c-format-of">input, format of</a>:</td><td>&nbsp;</td><td valign="top"><a href="Format.html#Format">Format</a></td></tr>
-<tr><td></td><td valign="top"><a href="Matching.html#index-input_002c-matching">input, matching</a>:</td><td>&nbsp;</td><td valign="top"><a href="Matching.html#Matching">Matching</a></td></tr>
-<tr><td colspan="4"> <hr></td></tr>
-<tr><th><a name="Concept-Index_cp_letter-K">K</a></th><td></td><td></td></tr>
-<tr><td></td><td valign="top"><a href="Performance.html#index-keywords_002c-for-performance">keywords, for performance</a>:</td><td>&nbsp;</td><td valign="top"><a href="Performance.html#Performance">Performance</a></td></tr>
-<tr><td colspan="4"> <hr></td></tr>
-<tr><th><a name="Concept-Index_cp_letter-L">L</a></th><td></td><td></td></tr>
-<tr><td></td><td valign="top"><a href="Lex-and-Posix.html#index-lex-_0028traditional_0029-and-POSIX">lex (traditional) and POSIX</a>:</td><td>&nbsp;</td><td valign="top"><a href="Lex-and-Posix.html#Lex-and-Posix">Lex and Posix</a></td></tr>
-<tr><td></td><td valign="top"><a href="How-do-I-use-my-own-I_002fO-classes-in-a-C_002b_002b-scanner_003f.html#index-LexerInput_002c-overriding">LexerInput, overriding</a>:</td><td>&nbsp;</td><td valign="top"><a href="How-do-I-use-my-own-I_002fO-classes-in-a-C_002b_002b-scanner_003f.html#How-do-I-use-my-own-I_002fO-classes-in-a-C_002b_002b-scanner_003f">How do I use my own I/O classes in a C++ scanner?</a></td></tr>
-<tr><td></td><td valign="top"><a href="How-do-I-use-my-own-I_002fO-classes-in-a-C_002b_002b-scanner_003f.html#index-LexerOutput_002c-overriding">LexerOutput, overriding</a>:</td><td>&nbsp;</td><td valign="top"><a href="How-do-I-use-my-own-I_002fO-classes-in-a-C_002b_002b-scanner_003f.html#How-do-I-use-my-own-I_002fO-classes-in-a-C_002b_002b-scanner_003f">How do I use my own I/O classes in a C++ scanner?</a></td></tr>
-<tr><td></td><td valign="top"><a href="Limitations.html#index-limitations-of-flex">limitations of flex</a>:</td><td>&nbsp;</td><td valign="top"><a href="Limitations.html#Limitations">Limitations</a></td></tr>
-<tr><td></td><td valign="top"><a href="Patterns.html#index-literal-text-in-patterns_002c-syntax-of">literal text in patterns, syntax of</a>:</td><td>&nbsp;</td><td valign="top"><a href="Patterns.html#Patterns">Patterns</a></td></tr>
-<tr><td></td><td valign="top"><a href="Loading-and-Unloading-Serialized-Tables.html#index-loading-tables-at-runtime">loading tables at runtime</a>:</td><td>&nbsp;</td><td valign="top"><a href="Loading-and-Unloading-Serialized-Tables.html#Loading-and-Unloading-Serialized-Tables">Loading and Unloading Serialized Tables</a></td></tr>
-<tr><td colspan="4"> <hr></td></tr>
-<tr><th><a name="Concept-Index_cp_letter-M">M</a></th><td></td><td></td></tr>
-<tr><td></td><td valign="top"><a href="M4-Dependency.html#index-m4">m4</a>:</td><td>&nbsp;</td><td valign="top"><a href="M4-Dependency.html#M4-Dependency">M4 Dependency</a></td></tr>
-<tr><td></td><td valign="top"><a href="Makefiles-and-Flex.html#index-Makefile_002c-example-of-implicit-rules">Makefile, example of implicit rules</a>:</td><td>&nbsp;</td><td valign="top"><a href="Makefiles-and-Flex.html#Makefiles-and-Flex">Makefiles and Flex</a></td></tr>
-<tr><td></td><td valign="top"><a href="Makefiles-and-Flex.html#index-Makefile_002c-explicit-example">Makefile, explicit example</a>:</td><td>&nbsp;</td><td valign="top"><a href="Makefiles-and-Flex.html#Makefiles-and-Flex">Makefiles and Flex</a></td></tr>
-<tr><td></td><td valign="top"><a href="Makefiles-and-Flex.html#index-Makefile_002c-syntax">Makefile, syntax</a>:</td><td>&nbsp;</td><td valign="top"><a href="Makefiles-and-Flex.html#Makefiles-and-Flex">Makefiles and Flex</a></td></tr>
-<tr><td></td><td valign="top"><a href="Start-Conditions.html#index-matching-C_002dstyle-double_002dquoted-strings">matching C-style double-quoted strings</a>:</td><td>&nbsp;</td><td valign="top"><a href="Start-Conditions.html#Start-Conditions">Start Conditions</a></td></tr>
-<tr><td></td><td valign="top"><a href="Matching.html#index-matching_002c-and-trailing-context">matching, and trailing context</a>:</td><td>&nbsp;</td><td valign="top"><a href="Matching.html#Matching">Matching</a></td></tr>
-<tr><td></td><td valign="top"><a href="Matching.html#index-matching_002c-length-of">matching, length of</a>:</td><td>&nbsp;</td><td valign="top"><a href="Matching.html#Matching">Matching</a></td></tr>
-<tr><td></td><td valign="top"><a href="Matching.html#index-matching_002c-multiple-matches">matching, multiple matches</a>:</td><td>&nbsp;</td><td valign="top"><a href="Matching.html#Matching">Matching</a></td></tr>
-<tr><td></td><td valign="top"><a href="Cxx.html#index-member-functions_002c-C_002b_002b">member functions, C++</a>:</td><td>&nbsp;</td><td valign="top"><a href="Cxx.html#Cxx">Cxx</a></td></tr>
-<tr><td></td><td valign="top"><a href="Memory-Management.html#index-memory-management">memory management</a>:</td><td>&nbsp;</td><td valign="top"><a href="Memory-Management.html#Memory-Management">Memory Management</a></td></tr>
-<tr><td></td><td valign="top"><a href="Multiple-Input-Buffers.html#index-memory_002c-allocating-input-buffers">memory, allocating input buffers</a>:</td><td>&nbsp;</td><td valign="top"><a href="Multiple-Input-Buffers.html#Multiple-Input-Buffers">Multiple Input Buffers</a></td></tr>
-<tr><td></td><td valign="top"><a href="Init-and-Destroy-Functions.html#index-memory_002c-considerations-for-reentrant-scanners">memory, considerations for reentrant scanners</a>:</td><td>&nbsp;</td><td valign="top"><a href="Init-and-Destroy-Functions.html#Init-and-Destroy-Functions">Init and Destroy Functions</a></td></tr>
-<tr><td></td><td valign="top"><a href="Multiple-Input-Buffers.html#index-memory_002c-deleting-input-buffers">memory, deleting input buffers</a>:</td><td>&nbsp;</td><td valign="top"><a href="Multiple-Input-Buffers.html#Multiple-Input-Buffers">Multiple Input Buffers</a></td></tr>
-<tr><td></td><td valign="top"><a href="Start-Conditions.html#index-memory_002c-for-start-condition-stacks">memory, for start condition stacks</a>:</td><td>&nbsp;</td><td valign="top"><a href="Start-Conditions.html#Start-Conditions">Start Conditions</a></td></tr>
-<tr><td></td><td valign="top"><a href="Serialized-Tables.html#index-memory_002c-serialized-tables">memory, serialized tables</a>:</td><td>&nbsp;</td><td valign="top"><a href="Serialized-Tables.html#Serialized-Tables">Serialized Tables</a></td></tr>
-<tr><td></td><td valign="top"><a href="Loading-and-Unloading-Serialized-Tables.html#index-memory_002c-serialized-tables-1">memory, serialized tables</a>:</td><td>&nbsp;</td><td valign="top"><a href="Loading-and-Unloading-Serialized-Tables.html#Loading-and-Unloading-Serialized-Tables">Loading and Unloading Serialized Tables</a></td></tr>
-<tr><td></td><td valign="top"><a href="Cxx.html#index-methods_002c-c_002b_002b">methods, c++</a>:</td><td>&nbsp;</td><td valign="top"><a href="Cxx.html#Cxx">Cxx</a></td></tr>
-<tr><td></td><td valign="top"><a href="Matching.html#index-minimal-scanner">minimal scanner</a>:</td><td>&nbsp;</td><td valign="top"><a href="Matching.html#Matching">Matching</a></td></tr>
-<tr><td></td><td valign="top"><a href="Multiple-Input-Buffers.html#index-multiple-input-streams">multiple input streams</a>:</td><td>&nbsp;</td><td valign="top"><a href="Multiple-Input-Buffers.html#Multiple-Input-Buffers">Multiple Input Buffers</a></td></tr>
-<tr><td colspan="4"> <hr></td></tr>
-<tr><th><a name="Concept-Index_cp_letter-N">N</a></th><td></td><td></td></tr>
-<tr><td></td><td valign="top"><a href="Lex-and-Posix.html#index-name-definitions_002c-not-POSIX">name definitions, not POSIX</a>:</td><td>&nbsp;</td><td valign="top"><a href="Lex-and-Posix.html#Lex-and-Posix">Lex and Posix</a></td></tr>
-<tr><td></td><td valign="top"><a href="Patterns.html#index-negating-ranges-in-patterns">negating ranges in patterns</a>:</td><td>&nbsp;</td><td valign="top"><a href="Patterns.html#Patterns">Patterns</a></td></tr>
-<tr><td></td><td valign="top"><a href="Patterns.html#index-newline_002c-matching-in-patterns">newline, matching in patterns</a>:</td><td>&nbsp;</td><td valign="top"><a href="Patterns.html#Patterns">Patterns</a></td></tr>
-<tr><td></td><td valign="top"><a href="Lex-and-Posix.html#index-non_002dPOSIX-features-of-flex">non-POSIX features of flex</a>:</td><td>&nbsp;</td><td valign="top"><a href="Lex-and-Posix.html#Lex-and-Posix">Lex and Posix</a></td></tr>
-<tr><td></td><td valign="top"><a href="Generated-Scanner.html#index-noyywrap_002c-_0025option">noyywrap, %option</a>:</td><td>&nbsp;</td><td valign="top"><a href="Generated-Scanner.html#Generated-Scanner">Generated Scanner</a></td></tr>
-<tr><td></td><td valign="top"><a href="Patterns.html#index-NULL-character-in-patterns_002c-syntax-of">NULL character in patterns, syntax of</a>:</td><td>&nbsp;</td><td valign="top"><a href="Patterns.html#Patterns">Patterns</a></td></tr>
-<tr><td colspan="4"> <hr></td></tr>
-<tr><th><a name="Concept-Index_cp_letter-O">O</a></th><td></td><td></td></tr>
-<tr><td></td><td valign="top"><a href="Patterns.html#index-octal-characters-in-patterns">octal characters in patterns</a>:</td><td>&nbsp;</td><td valign="top"><a href="Patterns.html#Patterns">Patterns</a></td></tr>
-<tr><td></td><td valign="top"><a href="Scanner-Options.html#index-options_002c-command_002dline">options, command-line</a>:</td><td>&nbsp;</td><td valign="top"><a href="Scanner-Options.html#Scanner-Options">Scanner Options</a></td></tr>
-<tr><td></td><td valign="top"><a href="How-do-I-use-my-own-I_002fO-classes-in-a-C_002b_002b-scanner_003f.html#index-overriding-LexerInput">overriding LexerInput</a>:</td><td>&nbsp;</td><td valign="top"><a href="How-do-I-use-my-own-I_002fO-classes-in-a-C_002b_002b-scanner_003f.html#How-do-I-use-my-own-I_002fO-classes-in-a-C_002b_002b-scanner_003f">How do I use my own I/O classes in a C++ scanner?</a></td></tr>
-<tr><td></td><td valign="top"><a href="How-do-I-use-my-own-I_002fO-classes-in-a-C_002b_002b-scanner_003f.html#index-overriding-LexerOutput">overriding LexerOutput</a>:</td><td>&nbsp;</td><td valign="top"><a href="How-do-I-use-my-own-I_002fO-classes-in-a-C_002b_002b-scanner_003f.html#How-do-I-use-my-own-I_002fO-classes-in-a-C_002b_002b-scanner_003f">How do I use my own I/O classes in a C++ scanner?</a></td></tr>
-<tr><td></td><td valign="top"><a href="Overriding-The-Default-Memory-Management.html#index-overriding-the-memory-routines">overriding the memory routines</a>:</td><td>&nbsp;</td><td valign="top"><a href="Overriding-The-Default-Memory-Management.html#Overriding-The-Default-Memory-Management">Overriding The Default Memory Management</a></td></tr>
-<tr><td colspan="4"> <hr></td></tr>
-<tr><th><a name="Concept-Index_cp_letter-P">P</a></th><td></td><td></td></tr>
-<tr><td></td><td valign="top"><a href="Simple-Examples.html#index-Pascal_002dlike-language">Pascal-like language</a>:</td><td>&nbsp;</td><td valign="top"><a href="Simple-Examples.html#Simple-Examples">Simple Examples</a></td></tr>
-<tr><td></td><td valign="top"><a href="Definitions-Section.html#index-pattern-aliases_002c-defining">pattern aliases, defining</a>:</td><td>&nbsp;</td><td valign="top"><a href="Definitions-Section.html#Definitions-Section">Definitions Section</a></td></tr>
-<tr><td></td><td valign="top"><a href="Patterns.html#index-pattern-aliases_002c-expansion-of">pattern aliases, expansion of</a>:</td><td>&nbsp;</td><td valign="top"><a href="Patterns.html#Patterns">Patterns</a></td></tr>
-<tr><td></td><td valign="top"><a href="Definitions-Section.html#index-pattern-aliases_002c-how-to-define">pattern aliases, how to define</a>:</td><td>&nbsp;</td><td valign="top"><a href="Definitions-Section.html#Definitions-Section">Definitions Section</a></td></tr>
-<tr><td></td><td valign="top"><a href="Definitions-Section.html#index-pattern-aliases_002c-use-of">pattern aliases, use of</a>:</td><td>&nbsp;</td><td valign="top"><a href="Definitions-Section.html#Definitions-Section">Definitions Section</a></td></tr>
-<tr><td></td><td valign="top"><a href="Lex-and-Posix.html#index-patterns-and-actions-on-different-lines">patterns and actions on different lines</a>:</td><td>&nbsp;</td><td valign="top"><a href="Lex-and-Posix.html#Lex-and-Posix">Lex and Posix</a></td></tr>
-<tr><td></td><td valign="top"><a href="Patterns.html#index-patterns_002c-character-class-equivalence">patterns, character class equivalence</a>:</td><td>&nbsp;</td><td valign="top"><a href="Patterns.html#Patterns">Patterns</a></td></tr>
-<tr><td></td><td valign="top"><a href="Common-Patterns.html#index-patterns_002c-common">patterns, common</a>:</td><td>&nbsp;</td><td valign="top"><a href="Common-Patterns.html#Common-Patterns">Common Patterns</a></td></tr>
-<tr><td></td><td valign="top"><a href="Patterns.html#index-patterns_002c-end-of-line">patterns, end of line</a>:</td><td>&nbsp;</td><td valign="top"><a href="Patterns.html#Patterns">Patterns</a></td></tr>
-<tr><td></td><td valign="top"><a href="Patterns.html#index-patterns_002c-grouping-and-precedence">patterns, grouping and precedence</a>:</td><td>&nbsp;</td><td valign="top"><a href="Patterns.html#Patterns">Patterns</a></td></tr>
-<tr><td></td><td valign="top"><a href="Patterns.html#index-patterns_002c-in-rules-section">patterns, in rules section</a>:</td><td>&nbsp;</td><td valign="top"><a href="Patterns.html#Patterns">Patterns</a></td></tr>
-<tr><td></td><td valign="top"><a href="Patterns.html#index-patterns_002c-invalid-trailing-context">patterns, invalid trailing context</a>:</td><td>&nbsp;</td><td valign="top"><a href="Patterns.html#Patterns">Patterns</a></td></tr>
-<tr><td></td><td valign="top"><a href="Matching.html#index-patterns_002c-matching">patterns, matching</a>:</td><td>&nbsp;</td><td valign="top"><a href="Matching.html#Matching">Matching</a></td></tr>
-<tr><td></td><td valign="top"><a href="Patterns.html#index-patterns_002c-precedence-of-operators">patterns, precedence of operators</a>:</td><td>&nbsp;</td><td valign="top"><a href="Patterns.html#Patterns">Patterns</a></td></tr>
-<tr><td></td><td valign="top"><a href="Patterns.html#index-patterns_002c-repetitions-with-grouping">patterns, repetitions with grouping</a>:</td><td>&nbsp;</td><td valign="top"><a href="Patterns.html#Patterns">Patterns</a></td></tr>
-<tr><td></td><td valign="top"><a href="Patterns.html#index-patterns_002c-special-characters-treated-as-non_002dspecial">patterns, special characters treated as non-special</a>:</td><td>&nbsp;</td><td valign="top"><a href="Patterns.html#Patterns">Patterns</a></td></tr>
-<tr><td></td><td valign="top"><a href="Patterns.html#index-patterns_002c-syntax">patterns, syntax</a>:</td><td>&nbsp;</td><td valign="top"><a href="Patterns.html#Patterns">Patterns</a></td></tr>
-<tr><td></td><td valign="top"><a href="Patterns.html#index-patterns_002c-syntax-1">patterns, syntax</a>:</td><td>&nbsp;</td><td valign="top"><a href="Patterns.html#Patterns">Patterns</a></td></tr>
-<tr><td></td><td valign="top"><a href="Performance.html#index-patterns_002c-tuning-for-performance">patterns, tuning for performance</a>:</td><td>&nbsp;</td><td valign="top"><a href="Performance.html#Performance">Performance</a></td></tr>
-<tr><td></td><td valign="top"><a href="Patterns.html#index-patterns_002c-valid-character-classes">patterns, valid character classes</a>:</td><td>&nbsp;</td><td valign="top"><a href="Patterns.html#Patterns">Patterns</a></td></tr>
-<tr><td></td><td valign="top"><a href="Performance.html#index-performance-optimization_002c-matching-longer-tokens">performance optimization, matching longer tokens</a>:</td><td>&nbsp;</td><td valign="top"><a href="Performance.html#Performance">Performance</a></td></tr>
-<tr><td></td><td valign="top"><a href="Performance.html#index-performance-optimization_002c-recognizing-keywords">performance optimization, recognizing keywords</a>:</td><td>&nbsp;</td><td valign="top"><a href="Performance.html#Performance">Performance</a></td></tr>
-<tr><td></td><td valign="top"><a href="Performance.html#index-performance_002c-backing-up">performance, backing up</a>:</td><td>&nbsp;</td><td valign="top"><a href="Performance.html#Performance">Performance</a></td></tr>
-<tr><td></td><td valign="top"><a href="Performance.html#index-performance_002c-considerations">performance, considerations</a>:</td><td>&nbsp;</td><td valign="top"><a href="Performance.html#Performance">Performance</a></td></tr>
-<tr><td></td><td valign="top"><a href="Performance.html#index-performance_002c-using-keywords">performance, using keywords</a>:</td><td>&nbsp;</td><td valign="top"><a href="Performance.html#Performance">Performance</a></td></tr>
-<tr><td></td><td valign="top"><a href="Multiple-Input-Buffers.html#index-popping-an-input-buffer">popping an input buffer</a>:</td><td>&nbsp;</td><td valign="top"><a href="Multiple-Input-Buffers.html#Multiple-Input-Buffers">Multiple Input Buffers</a></td></tr>
-<tr><td></td><td valign="top"><a href="Lex-and-Posix.html#index-POSIX-and-lex">POSIX and lex</a>:</td><td>&nbsp;</td><td valign="top"><a href="Lex-and-Posix.html#Lex-and-Posix">Lex and Posix</a></td></tr>
-<tr><td></td><td valign="top"><a href="Lex-and-Posix.html#index-POSIX-comp_003bcompliance">POSIX comp;compliance</a>:</td><td>&nbsp;</td><td valign="top"><a href="Lex-and-Posix.html#Lex-and-Posix">Lex and Posix</a></td></tr>
-<tr><td></td><td valign="top"><a href="Patterns.html#index-POSIX_002c-character-classes-in-patterns_002c-syntax-of">POSIX, character classes in patterns, syntax of</a>:</td><td>&nbsp;</td><td valign="top"><a href="Patterns.html#Patterns">Patterns</a></td></tr>
-<tr><td></td><td valign="top"><a href="Actions.html#index-preprocessor-macros_002c-for-use-in-actions">preprocessor macros, for use in actions</a>:</td><td>&nbsp;</td><td valign="top"><a href="Actions.html#Actions">Actions</a></td></tr>
-<tr><td></td><td valign="top"><a href="Multiple-Input-Buffers.html#index-pushing-an-input-buffer">pushing an input buffer</a>:</td><td>&nbsp;</td><td valign="top"><a href="Multiple-Input-Buffers.html#Multiple-Input-Buffers">Multiple Input Buffers</a></td></tr>
-<tr><td></td><td valign="top"><a href="Actions.html#index-pushing-back-characters-with-unput">pushing back characters with unput</a>:</td><td>&nbsp;</td><td valign="top"><a href="Actions.html#Actions">Actions</a></td></tr>
-<tr><td></td><td valign="top"><a href="Actions.html#index-pushing-back-characters-with-unput_0028_0029">pushing back characters with unput()</a>:</td><td>&nbsp;</td><td valign="top"><a href="Actions.html#Actions">Actions</a></td></tr>
-<tr><td></td><td valign="top"><a href="Actions.html#index-pushing-back-characters-with-yyless">pushing back characters with yyless</a>:</td><td>&nbsp;</td><td valign="top"><a href="Actions.html#Actions">Actions</a></td></tr>
-<tr><td></td><td valign="top"><a href="Actions.html#index-pushing-back-EOF">pushing back EOF</a>:</td><td>&nbsp;</td><td valign="top"><a href="Actions.html#Actions">Actions</a></td></tr>
-<tr><td colspan="4"> <hr></td></tr>
-<tr><th><a name="Concept-Index_cp_letter-R">R</a></th><td></td><td></td></tr>
-<tr><td></td><td valign="top"><a href="Patterns.html#index-ranges-in-patterns">ranges in patterns</a>:</td><td>&nbsp;</td><td valign="top"><a href="Patterns.html#Patterns">Patterns</a></td></tr>
-<tr><td></td><td valign="top"><a href="Patterns.html#index-ranges-in-patterns_002c-negating">ranges in patterns, negating</a>:</td><td>&nbsp;</td><td valign="top"><a href="Patterns.html#Patterns">Patterns</a></td></tr>
-<tr><td></td><td valign="top"><a href="Start-Conditions.html#index-recognizing-C-comments">recognizing C comments</a>:</td><td>&nbsp;</td><td valign="top"><a href="Start-Conditions.html#Start-Conditions">Start Conditions</a></td></tr>
-<tr><td></td><td valign="top"><a href="Reentrant-Uses.html#index-reentrant-scanners_002c-multiple-interleaved-scanners">reentrant scanners, multiple interleaved scanners</a>:</td><td>&nbsp;</td><td valign="top"><a href="Reentrant-Uses.html#Reentrant-Uses">Reentrant Uses</a></td></tr>
-<tr><td></td><td valign="top"><a href="Reentrant-Uses.html#index-reentrant-scanners_002c-recursive-invocation">reentrant scanners, recursive invocation</a>:</td><td>&nbsp;</td><td valign="top"><a href="Reentrant-Uses.html#Reentrant-Uses">Reentrant Uses</a></td></tr>
-<tr><td></td><td valign="top"><a href="Global-Replacement.html#index-reentrant_002c-accessing-flex-variables">reentrant, accessing flex variables</a>:</td><td>&nbsp;</td><td valign="top"><a href="Global-Replacement.html#Global-Replacement">Global Replacement</a></td></tr>
-<tr><td></td><td valign="top"><a href="Accessor-Methods.html#index-reentrant_002c-accessor-functions">reentrant, accessor functions</a>:</td><td>&nbsp;</td><td valign="top"><a href="Accessor-Methods.html#Accessor-Methods">Accessor Methods</a></td></tr>
-<tr><td></td><td valign="top"><a href="Reentrant-Overview.html#index-reentrant_002c-API-explanation">reentrant, API explanation</a>:</td><td>&nbsp;</td><td valign="top"><a href="Reentrant-Overview.html#Reentrant-Overview">Reentrant Overview</a></td></tr>
-<tr><td></td><td valign="top"><a href="Extra-Reentrant-Argument.html#index-reentrant_002c-calling-functions">reentrant, calling functions</a>:</td><td>&nbsp;</td><td valign="top"><a href="Extra-Reentrant-Argument.html#Extra-Reentrant-Argument">Extra Reentrant Argument</a></td></tr>
-<tr><td></td><td valign="top"><a href="Reentrant-Example.html#index-reentrant_002c-example-of">reentrant, example of</a>:</td><td>&nbsp;</td><td valign="top"><a href="Reentrant-Example.html#Reentrant-Example">Reentrant Example</a></td></tr>
-<tr><td></td><td valign="top"><a href="Reentrant.html#index-reentrant_002c-explanation">reentrant, explanation</a>:</td><td>&nbsp;</td><td valign="top"><a href="Reentrant.html#Reentrant">Reentrant</a></td></tr>
-<tr><td></td><td valign="top"><a href="Extra-Data.html#index-reentrant_002c-extra-data">reentrant, extra data</a>:</td><td>&nbsp;</td><td valign="top"><a href="Extra-Data.html#Extra-Data">Extra Data</a></td></tr>
-<tr><td></td><td valign="top"><a href="Init-and-Destroy-Functions.html#index-reentrant_002c-initialization">reentrant, initialization</a>:</td><td>&nbsp;</td><td valign="top"><a href="Init-and-Destroy-Functions.html#Init-and-Destroy-Functions">Init and Destroy Functions</a></td></tr>
-<tr><td></td><td valign="top"><a href="Patterns.html#index-regular-expressions_002c-in-patterns">regular expressions, in patterns</a>:</td><td>&nbsp;</td><td valign="top"><a href="Patterns.html#Patterns">Patterns</a></td></tr>
-<tr><td></td><td valign="top"><a href="Actions.html#index-REJECT">REJECT</a>:</td><td>&nbsp;</td><td valign="top"><a href="Actions.html#Actions">Actions</a></td></tr>
-<tr><td></td><td valign="top"><a href="Actions.html#index-REJECT_002c-calling-multiple-times">REJECT, calling multiple times</a>:</td><td>&nbsp;</td><td valign="top"><a href="Actions.html#Actions">Actions</a></td></tr>
-<tr><td></td><td valign="top"><a href="Performance.html#index-REJECT_002c-performance-costs">REJECT, performance costs</a>:</td><td>&nbsp;</td><td valign="top"><a href="Performance.html#Performance">Performance</a></td></tr>
-<tr><td></td><td valign="top"><a href="Reporting-Bugs.html#index-reporting-bugs">reporting bugs</a>:</td><td>&nbsp;</td><td valign="top"><a href="Reporting-Bugs.html#Reporting-Bugs">Reporting Bugs</a></td></tr>
-<tr><td></td><td valign="top"><a href="Lex-and-Posix.html#index-restarting-the-scanner">restarting the scanner</a>:</td><td>&nbsp;</td><td valign="top"><a href="Lex-and-Posix.html#Lex-and-Posix">Lex and Posix</a></td></tr>
-<tr><td></td><td valign="top"><a href="Generated-Scanner.html#index-RETURN_002c-within-actions">RETURN, within actions</a>:</td><td>&nbsp;</td><td valign="top"><a href="Generated-Scanner.html#Generated-Scanner">Generated Scanner</a></td></tr>
-<tr><td></td><td valign="top"><a href="Simple-Examples.html#index-rules_002c-default">rules, default</a>:</td><td>&nbsp;</td><td valign="top"><a href="Simple-Examples.html#Simple-Examples">Simple Examples</a></td></tr>
-<tr><td></td><td valign="top"><a href="Rules-Section.html#index-rules_002c-in-flex-input">rules, in flex input</a>:</td><td>&nbsp;</td><td valign="top"><a href="Rules-Section.html#Rules-Section">Rules Section</a></td></tr>
-<tr><td colspan="4"> <hr></td></tr>
-<tr><th><a name="Concept-Index_cp_letter-S">S</a></th><td></td><td></td></tr>
-<tr><td></td><td valign="top"><a href="Introduction.html#index-scanner_002c-definition-of">scanner, definition of</a>:</td><td>&nbsp;</td><td valign="top"><a href="Introduction.html#Introduction">Introduction</a></td></tr>
-<tr><td></td><td valign="top"><a href="Format.html#index-sections-of-flex-input">sections of flex input</a>:</td><td>&nbsp;</td><td valign="top"><a href="Format.html#Format">Format</a></td></tr>
-<tr><td></td><td valign="top"><a href="Serialized-Tables.html#index-serialization">serialization</a>:</td><td>&nbsp;</td><td valign="top"><a href="Serialized-Tables.html#Serialized-Tables">Serialized Tables</a></td></tr>
-<tr><td></td><td valign="top"><a href="Creating-Serialized-Tables.html#index-serialization-of-tables">serialization of tables</a>:</td><td>&nbsp;</td><td valign="top"><a href="Creating-Serialized-Tables.html#Creating-Serialized-Tables">Creating Serialized Tables</a></td></tr>
-<tr><td></td><td valign="top"><a href="Creating-Serialized-Tables.html#index-serialized-tables_002c-multiple-scanners">serialized tables, multiple scanners</a>:</td><td>&nbsp;</td><td valign="top"><a href="Creating-Serialized-Tables.html#Creating-Serialized-Tables">Creating Serialized Tables</a></td></tr>
-<tr><td></td><td valign="top"><a href="Multiple-Input-Buffers.html#index-stack_002c-input-buffer-pop">stack, input buffer pop</a>:</td><td>&nbsp;</td><td valign="top"><a href="Multiple-Input-Buffers.html#Multiple-Input-Buffers">Multiple Input Buffers</a></td></tr>
-<tr><td></td><td valign="top"><a href="Multiple-Input-Buffers.html#index-stack_002c-input-buffer-push">stack, input buffer push</a>:</td><td>&nbsp;</td><td valign="top"><a href="Multiple-Input-Buffers.html#Multiple-Input-Buffers">Multiple Input Buffers</a></td></tr>
-<tr><td></td><td valign="top"><a href="Start-Conditions.html#index-stacks_002c-routines-for-manipulating">stacks, routines for manipulating</a>:</td><td>&nbsp;</td><td valign="top"><a href="Start-Conditions.html#Start-Conditions">Start Conditions</a></td></tr>
-<tr><td></td><td valign="top"><a href="Start-Conditions.html#index-start-condition_002c-applying-to-multiple-patterns">start condition, applying to multiple patterns</a>:</td><td>&nbsp;</td><td valign="top"><a href="Start-Conditions.html#Start-Conditions">Start Conditions</a></td></tr>
-<tr><td></td><td valign="top"><a href="Start-Conditions.html#index-start-conditions">start conditions</a>:</td><td>&nbsp;</td><td valign="top"><a href="Start-Conditions.html#Start-Conditions">Start Conditions</a></td></tr>
-<tr><td></td><td valign="top"><a href="Start-Conditions.html#index-start-conditions_002c-behavior-of-default-rule">start conditions, behavior of default rule</a>:</td><td>&nbsp;</td><td valign="top"><a href="Start-Conditions.html#Start-Conditions">Start Conditions</a></td></tr>
-<tr><td></td><td valign="top"><a href="Start-Conditions.html#index-start-conditions_002c-exclusive">start conditions, exclusive</a>:</td><td>&nbsp;</td><td valign="top"><a href="Start-Conditions.html#Start-Conditions">Start Conditions</a></td></tr>
-<tr><td></td><td valign="top"><a href="Start-Conditions.html#index-start-conditions_002c-for-different-interpretations-of-same-input">start conditions, for different interpretations of same input</a>:</td><td>&nbsp;</td><td valign="top"><a href="Start-Conditions.html#Start-Conditions">Start Conditions</a></td></tr>
-<tr><td></td><td valign="top"><a href="Patterns.html#index-start-conditions_002c-in-patterns">start conditions, in patterns</a>:</td><td>&nbsp;</td><td valign="top"><a href="Patterns.html#Patterns">Patterns</a></td></tr>
-<tr><td></td><td valign="top"><a href="Start-Conditions.html#index-start-conditions_002c-inclusive">start conditions, inclusive</a>:</td><td>&nbsp;</td><td valign="top"><a href="Start-Conditions.html#Start-Conditions">Start Conditions</a></td></tr>
-<tr><td></td><td valign="top"><a href="Start-Conditions.html#index-start-conditions_002c-inclusive-v_002es_002e-exclusive">start conditions, inclusive v.s. exclusive</a>:</td><td>&nbsp;</td><td valign="top"><a href="Start-Conditions.html#Start-Conditions">Start Conditions</a></td></tr>
-<tr><td></td><td valign="top"><a href="Start-Conditions.html#index-start-conditions_002c-integer-values">start conditions, integer values</a>:</td><td>&nbsp;</td><td valign="top"><a href="Start-Conditions.html#Start-Conditions">Start Conditions</a></td></tr>
-<tr><td></td><td valign="top"><a href="Start-Conditions.html#index-start-conditions_002c-multiple">start conditions, multiple</a>:</td><td>&nbsp;</td><td valign="top"><a href="Start-Conditions.html#Start-Conditions">Start Conditions</a></td></tr>
-<tr><td></td><td valign="top"><a href="Start-Conditions.html#index-start-conditions_002c-special-wildcard-condition">start conditions, special wildcard condition</a>:</td><td>&nbsp;</td><td valign="top"><a href="Start-Conditions.html#Start-Conditions">Start Conditions</a></td></tr>
-<tr><td></td><td valign="top"><a href="Start-Conditions.html#index-start-conditions_002c-use-of-a-stack">start conditions, use of a stack</a>:</td><td>&nbsp;</td><td valign="top"><a href="Start-Conditions.html#Start-Conditions">Start Conditions</a></td></tr>
-<tr><td></td><td valign="top"><a href="Start-Conditions.html#index-start-conditions_002c-use-of-wildcard-condition-_0028_003c_002a_003e_0029">start conditions, use of wildcard condition (&lt;*&gt;)</a>:</td><td>&nbsp;</td><td valign="top"><a href="Start-Conditions.html#Start-Conditions">Start Conditions</a></td></tr>
-<tr><td></td><td valign="top"><a href="Start-Conditions.html#index-start-conditions_002c-using-BEGIN">start conditions, using BEGIN</a>:</td><td>&nbsp;</td><td valign="top"><a href="Start-Conditions.html#Start-Conditions">Start Conditions</a></td></tr>
-<tr><td></td><td valign="top"><a href="Generated-Scanner.html#index-stdin_002c-default-for-yyin">stdin, default for yyin</a>:</td><td>&nbsp;</td><td valign="top"><a href="Generated-Scanner.html#Generated-Scanner">Generated Scanner</a></td></tr>
-<tr><td></td><td valign="top"><a href="Generated-Scanner.html#index-stdout_002c-as-default-for-yyout">stdout, as default for yyout</a>:</td><td>&nbsp;</td><td valign="top"><a href="Generated-Scanner.html#Generated-Scanner">Generated Scanner</a></td></tr>
-<tr><td></td><td valign="top"><a href="Multiple-Input-Buffers.html#index-strings_002c-scanning-strings-instead-of-files">strings, scanning strings instead of files</a>:</td><td>&nbsp;</td><td valign="top"><a href="Multiple-Input-Buffers.html#Multiple-Input-Buffers">Multiple Input Buffers</a></td></tr>
-<tr><td colspan="4"> <hr></td></tr>
-<tr><th><a name="Concept-Index_cp_letter-T">T</a></th><td></td><td></td></tr>
-<tr><td></td><td valign="top"><a href="Creating-Serialized-Tables.html#index-tables_002c-creating-serialized">tables, creating serialized</a>:</td><td>&nbsp;</td><td valign="top"><a href="Creating-Serialized-Tables.html#Creating-Serialized-Tables">Creating Serialized Tables</a></td></tr>
-<tr><td></td><td valign="top"><a href="Tables-File-Format.html#index-tables_002c-file-format">tables, file format</a>:</td><td>&nbsp;</td><td valign="top"><a href="Tables-File-Format.html#Tables-File-Format">Tables File Format</a></td></tr>
-<tr><td></td><td valign="top"><a href="Loading-and-Unloading-Serialized-Tables.html#index-tables_002c-freeing">tables, freeing</a>:</td><td>&nbsp;</td><td valign="top"><a href="Loading-and-Unloading-Serialized-Tables.html#Loading-and-Unloading-Serialized-Tables">Loading and Unloading Serialized Tables</a></td></tr>
-<tr><td></td><td valign="top"><a href="Loading-and-Unloading-Serialized-Tables.html#index-tables_002c-loading-and-unloading">tables, loading and unloading</a>:</td><td>&nbsp;</td><td valign="top"><a href="Loading-and-Unloading-Serialized-Tables.html#Loading-and-Unloading-Serialized-Tables">Loading and Unloading Serialized Tables</a></td></tr>
-<tr><td></td><td valign="top"><a href="Actions.html#index-terminating-with-yyterminate_0028_0029">terminating with yyterminate()</a>:</td><td>&nbsp;</td><td valign="top"><a href="Actions.html#Actions">Actions</a></td></tr>
-<tr><td></td><td valign="top"><a href="Matching.html#index-token">token</a>:</td><td>&nbsp;</td><td valign="top"><a href="Matching.html#Matching">Matching</a></td></tr>
-<tr><td></td><td valign="top"><a href="Patterns.html#index-trailing-context_002c-in-patterns">trailing context, in patterns</a>:</td><td>&nbsp;</td><td valign="top"><a href="Patterns.html#Patterns">Patterns</a></td></tr>
-<tr><td></td><td valign="top"><a href="Patterns.html#index-trailing-context_002c-limits-of">trailing context, limits of</a>:</td><td>&nbsp;</td><td valign="top"><a href="Patterns.html#Patterns">Patterns</a></td></tr>
-<tr><td></td><td valign="top"><a href="Matching.html#index-trailing-context_002c-matching">trailing context, matching</a>:</td><td>&nbsp;</td><td valign="top"><a href="Matching.html#Matching">Matching</a></td></tr>
-<tr><td></td><td valign="top"><a href="Performance.html#index-trailing-context_002c-performance-costs">trailing context, performance costs</a>:</td><td>&nbsp;</td><td valign="top"><a href="Performance.html#Performance">Performance</a></td></tr>
-<tr><td></td><td valign="top"><a href="Performance.html#index-trailing-context_002c-variable-length">trailing context, variable length</a>:</td><td>&nbsp;</td><td valign="top"><a href="Performance.html#Performance">Performance</a></td></tr>
-<tr><td colspan="4"> <hr></td></tr>
-<tr><th><a name="Concept-Index_cp_letter-U">U</a></th><td></td><td></td></tr>
-<tr><td></td><td valign="top"><a href="Actions.html#index-unput_0028_0029">unput()</a>:</td><td>&nbsp;</td><td valign="top"><a href="Actions.html#Actions">Actions</a></td></tr>
-<tr><td></td><td valign="top"><a href="Actions.html#index-unput_0028_0029_002c-and-_0025pointer">unput(), and %pointer</a>:</td><td>&nbsp;</td><td valign="top"><a href="Actions.html#Actions">Actions</a></td></tr>
-<tr><td></td><td valign="top"><a href="Actions.html#index-unput_0028_0029_002c-pushing-back-characters">unput(), pushing back characters</a>:</td><td>&nbsp;</td><td valign="top"><a href="Actions.html#Actions">Actions</a></td></tr>
-<tr><td></td><td valign="top"><a href="User-Code-Section.html#index-user-code_002c-in-flex-input">user code, in flex input</a>:</td><td>&nbsp;</td><td valign="top"><a href="User-Code-Section.html#User-Code-Section">User Code Section</a></td></tr>
-<tr><td></td><td valign="top"><a href="Simple-Examples.html#index-username-expansion">username expansion</a>:</td><td>&nbsp;</td><td valign="top"><a href="Simple-Examples.html#Simple-Examples">Simple Examples</a></td></tr>
-<tr><td></td><td valign="top"><a href="Start-Conditions.html#index-using-integer-values-of-start-condition-names">using integer values of start condition names</a>:</td><td>&nbsp;</td><td valign="top"><a href="Start-Conditions.html#Start-Conditions">Start Conditions</a></td></tr>
-<tr><td colspan="4"> <hr></td></tr>
-<tr><th><a name="Concept-Index_cp_letter-V">V</a></th><td></td><td></td></tr>
-<tr><td></td><td valign="top"><a href="Patterns.html#index-verbatim-text-in-patterns_002c-syntax-of">verbatim text in patterns, syntax of</a>:</td><td>&nbsp;</td><td valign="top"><a href="Patterns.html#Patterns">Patterns</a></td></tr>
-<tr><td colspan="4"> <hr></td></tr>
-<tr><th><a name="Concept-Index_cp_letter-W">W</a></th><td></td><td></td></tr>
-<tr><td></td><td valign="top"><a href="Limitations.html#index-warning_002c-dangerous-trailing-context">warning, dangerous trailing context</a>:</td><td>&nbsp;</td><td valign="top"><a href="Limitations.html#Limitations">Limitations</a></td></tr>
-<tr><td></td><td valign="top"><a href="Diagnostics.html#index-warning_002c-rule-cannot-be-matched">warning, rule cannot be matched</a>:</td><td>&nbsp;</td><td valign="top"><a href="Diagnostics.html#Diagnostics">Diagnostics</a></td></tr>
-<tr><td></td><td valign="top"><a href="Diagnostics.html#index-warnings_002c-diagnostic-messages">warnings, diagnostic messages</a>:</td><td>&nbsp;</td><td valign="top"><a href="Diagnostics.html#Diagnostics">Diagnostics</a></td></tr>
-<tr><td></td><td valign="top"><a href="Actions.html#index-whitespace_002c-compressing">whitespace, compressing</a>:</td><td>&nbsp;</td><td valign="top"><a href="Actions.html#Actions">Actions</a></td></tr>
-<tr><td colspan="4"> <hr></td></tr>
-<tr><th><a name="Concept-Index_cp_letter-Y">Y</a></th><td></td><td></td></tr>
-<tr><td></td><td valign="top"><a href="Yacc.html#index-yacc-interface">yacc interface</a>:</td><td>&nbsp;</td><td valign="top"><a href="Yacc.html#Yacc">Yacc</a></td></tr>
-<tr><td></td><td valign="top"><a href="Yacc.html#index-yacc_002c-interface">yacc, interface</a>:</td><td>&nbsp;</td><td valign="top"><a href="Yacc.html#Yacc">Yacc</a></td></tr>
-<tr><td></td><td valign="top"><a href="Overriding-The-Default-Memory-Management.html#index-yyalloc_002c-overriding">yyalloc, overriding</a>:</td><td>&nbsp;</td><td valign="top"><a href="Overriding-The-Default-Memory-Management.html#Overriding-The-Default-Memory-Management">Overriding The Default Memory Management</a></td></tr>
-<tr><td></td><td valign="top"><a href="Overriding-The-Default-Memory-Management.html#index-yyfree_002c-overriding">yyfree, overriding</a>:</td><td>&nbsp;</td><td valign="top"><a href="Overriding-The-Default-Memory-Management.html#Overriding-The-Default-Memory-Management">Overriding The Default Memory Management</a></td></tr>
-<tr><td></td><td valign="top"><a href="Generated-Scanner.html#index-yyin">yyin</a>:</td><td>&nbsp;</td><td valign="top"><a href="Generated-Scanner.html#Generated-Scanner">Generated Scanner</a></td></tr>
-<tr><td></td><td valign="top"><a href="Actions.html#index-yyinput_0028_0029">yyinput()</a>:</td><td>&nbsp;</td><td valign="top"><a href="Actions.html#Actions">Actions</a></td></tr>
-<tr><td></td><td valign="top"><a href="Matching.html#index-yyleng">yyleng</a>:</td><td>&nbsp;</td><td valign="top"><a href="Matching.html#Matching">Matching</a></td></tr>
-<tr><td></td><td valign="top"><a href="Actions.html#index-yyleng_002c-modification-of">yyleng, modification of</a>:</td><td>&nbsp;</td><td valign="top"><a href="Actions.html#Actions">Actions</a></td></tr>
-<tr><td></td><td valign="top"><a href="Actions.html#index-yyless_0028_0029">yyless()</a>:</td><td>&nbsp;</td><td valign="top"><a href="Actions.html#Actions">Actions</a></td></tr>
-<tr><td></td><td valign="top"><a href="Actions.html#index-yyless_0028_0029_002c-pushing-back-characters">yyless(), pushing back characters</a>:</td><td>&nbsp;</td><td valign="top"><a href="Actions.html#Actions">Actions</a></td></tr>
-<tr><td></td><td valign="top"><a href="Generated-Scanner.html#index-yylex_0028_0029_002c-in-generated-scanner">yylex(), in generated scanner</a>:</td><td>&nbsp;</td><td valign="top"><a href="Generated-Scanner.html#Generated-Scanner">Generated Scanner</a></td></tr>
-<tr><td></td><td valign="top"><a href="Generated-Scanner.html#index-yylex_0028_0029_002c-overriding">yylex(), overriding</a>:</td><td>&nbsp;</td><td valign="top"><a href="Generated-Scanner.html#Generated-Scanner">Generated Scanner</a></td></tr>
-<tr><td></td><td valign="top"><a href="Generated-Scanner.html#index-yylex_002c-overriding-the-prototype-of">yylex, overriding the prototype of</a>:</td><td>&nbsp;</td><td valign="top"><a href="Generated-Scanner.html#Generated-Scanner">Generated Scanner</a></td></tr>
-<tr><td></td><td valign="top"><a href="Reentrant-Functions.html#index-yylineno_002c-in-a-reentrant-scanner">yylineno, in a reentrant scanner</a>:</td><td>&nbsp;</td><td valign="top"><a href="Reentrant-Functions.html#Reentrant-Functions">Reentrant Functions</a></td></tr>
-<tr><td></td><td valign="top"><a href="Performance.html#index-yylineno_002c-performance-costs">yylineno, performance costs</a>:</td><td>&nbsp;</td><td valign="top"><a href="Performance.html#Performance">Performance</a></td></tr>
-<tr><td></td><td valign="top"><a href="Actions.html#index-yymore_0028_0029">yymore()</a>:</td><td>&nbsp;</td><td valign="top"><a href="Actions.html#Actions">Actions</a></td></tr>
-<tr><td></td><td valign="top"><a href="Actions.html#index-yymore_0028_0029-to-append-token-to-previous-token">yymore() to append token to previous token</a>:</td><td>&nbsp;</td><td valign="top"><a href="Actions.html#Actions">Actions</a></td></tr>
-<tr><td></td><td valign="top"><a href="Actions.html#index-yymore_0028_0029_002c-mega_002dkludge">yymore(), mega-kludge</a>:</td><td>&nbsp;</td><td valign="top"><a href="Actions.html#Actions">Actions</a></td></tr>
-<tr><td></td><td valign="top"><a href="Actions.html#index-yymore_002c-and-yyleng">yymore, and yyleng</a>:</td><td>&nbsp;</td><td valign="top"><a href="Actions.html#Actions">Actions</a></td></tr>
-<tr><td></td><td valign="top"><a href="Actions.html#index-yymore_002c-performance-penalty-of">yymore, performance penalty of</a>:</td><td>&nbsp;</td><td valign="top"><a href="Actions.html#Actions">Actions</a></td></tr>
-<tr><td></td><td valign="top"><a href="Generated-Scanner.html#index-yyout">yyout</a>:</td><td>&nbsp;</td><td valign="top"><a href="Generated-Scanner.html#Generated-Scanner">Generated Scanner</a></td></tr>
-<tr><td></td><td valign="top"><a href="Overriding-The-Default-Memory-Management.html#index-yyrealloc_002c-overriding">yyrealloc, overriding</a>:</td><td>&nbsp;</td><td valign="top"><a href="Overriding-The-Default-Memory-Management.html#Overriding-The-Default-Memory-Management">Overriding The Default Memory Management</a></td></tr>
-<tr><td></td><td valign="top"><a href="Generated-Scanner.html#index-yyrestart_0028_0029">yyrestart()</a>:</td><td>&nbsp;</td><td valign="top"><a href="Generated-Scanner.html#Generated-Scanner">Generated Scanner</a></td></tr>
-<tr><td></td><td valign="top"><a href="Actions.html#index-yyterminate_0028_0029">yyterminate()</a>:</td><td>&nbsp;</td><td valign="top"><a href="Actions.html#Actions">Actions</a></td></tr>
-<tr><td></td><td valign="top"><a href="Matching.html#index-yytext">yytext</a>:</td><td>&nbsp;</td><td valign="top"><a href="Matching.html#Matching">Matching</a></td></tr>
-<tr><td></td><td valign="top"><a href="User-Values.html#index-yytext_002c-default-array-size">yytext, default array size</a>:</td><td>&nbsp;</td><td valign="top"><a href="User-Values.html#User-Values">User Values</a></td></tr>
-<tr><td></td><td valign="top"><a href="A-Note-About-yytext-And-Memory.html#index-yytext_002c-memory-considerations">yytext, memory considerations</a>:</td><td>&nbsp;</td><td valign="top"><a href="A-Note-About-yytext-And-Memory.html#A-Note-About-yytext-And-Memory">A Note About yytext And Memory</a></td></tr>
-<tr><td></td><td valign="top"><a href="Actions.html#index-yytext_002c-modification-of">yytext, modification of</a>:</td><td>&nbsp;</td><td valign="top"><a href="Actions.html#Actions">Actions</a></td></tr>
-<tr><td></td><td valign="top"><a href="Matching.html#index-yytext_002c-two-types-of">yytext, two types of</a>:</td><td>&nbsp;</td><td valign="top"><a href="Matching.html#Matching">Matching</a></td></tr>
-<tr><td></td><td valign="top"><a href="Generated-Scanner.html#index-yywrap_0028_0029">yywrap()</a>:</td><td>&nbsp;</td><td valign="top"><a href="Generated-Scanner.html#Generated-Scanner">Generated Scanner</a></td></tr>
-<tr><td></td><td valign="top"><a href="Generated-Scanner.html#index-yywrap_002c-default-for">yywrap, default for</a>:</td><td>&nbsp;</td><td valign="top"><a href="Generated-Scanner.html#Generated-Scanner">Generated Scanner</a></td></tr>
-<tr><td></td><td valign="top"><a href="Multiple-Input-Buffers.html#index-YY_005fCURRENT_005fBUFFER_002c-and-multiple-buffers-Finally_002c-the-macro">YY_CURRENT_BUFFER, and multiple buffers Finally, the macro</a>:</td><td>&nbsp;</td><td valign="top"><a href="Multiple-Input-Buffers.html#Multiple-Input-Buffers">Multiple Input Buffers</a></td></tr>
-<tr><td></td><td valign="top"><a href="Extra-Data.html#index-YY_005fEXTRA_005fTYPE_002c-defining-your-own-type">YY_EXTRA_TYPE, defining your own type</a>:</td><td>&nbsp;</td><td valign="top"><a href="Extra-Data.html#Extra-Data">Extra Data</a></td></tr>
-<tr><td></td><td valign="top"><a href="Actions.html#index-YY_005fFLUSH_005fBUFFER">YY_FLUSH_BUFFER</a>:</td><td>&nbsp;</td><td valign="top"><a href="Actions.html#Actions">Actions</a></td></tr>
-<tr><td></td><td valign="top"><a href="Generated-Scanner.html#index-YY_005fINPUT">YY_INPUT</a>:</td><td>&nbsp;</td><td valign="top"><a href="Generated-Scanner.html#Generated-Scanner">Generated Scanner</a></td></tr>
-<tr><td></td><td valign="top"><a href="Generated-Scanner.html#index-YY_005fINPUT_002c-overriding">YY_INPUT, overriding</a>:</td><td>&nbsp;</td><td valign="top"><a href="Generated-Scanner.html#Generated-Scanner">Generated Scanner</a></td></tr>
-<tr><td></td><td valign="top"><a href="Start-Conditions.html#index-YY_005fSTART_002c-example">YY_START, example</a>:</td><td>&nbsp;</td><td valign="top"><a href="Start-Conditions.html#Start-Conditions">Start Conditions</a></td></tr>
-<tr><td></td><td valign="top"><a href="Misc-Macros.html#index-YY_005fUSER_005fACTION-to-track-each-time-a-rule-is-matched">YY_USER_ACTION to track each time a rule is matched</a>:</td><td>&nbsp;</td><td valign="top"><a href="Misc-Macros.html#Misc-Macros">Misc Macros</a></td></tr>
-<tr><td colspan="4"> <hr></td></tr>
-</table>
-<table><tr><th valign="top">Jump to: &nbsp; </th><td><a class="summary-letter" href="#Concept-Index_cp_symbol-1"><b>$</b></a>
- &nbsp; 
-<a class="summary-letter" href="#Concept-Index_cp_symbol-2"><b>%</b></a>
- &nbsp; 
-<a class="summary-letter" href="#Concept-Index_cp_symbol-3"><b>&lt;</b></a>
- &nbsp; 
-<a class="summary-letter" href="#Concept-Index_cp_symbol-4"><b>[</b></a>
- &nbsp; 
-<a class="summary-letter" href="#Concept-Index_cp_symbol-5"><b>^</b></a>
- &nbsp; 
-<a class="summary-letter" href="#Concept-Index_cp_symbol-6"><b>|</b></a>
- &nbsp; 
-<br>
-<a class="summary-letter" href="#Concept-Index_cp_letter-A"><b>A</b></a>
- &nbsp; 
-<a class="summary-letter" href="#Concept-Index_cp_letter-B"><b>B</b></a>
- &nbsp; 
-<a class="summary-letter" href="#Concept-Index_cp_letter-C"><b>C</b></a>
- &nbsp; 
-<a class="summary-letter" href="#Concept-Index_cp_letter-D"><b>D</b></a>
- &nbsp; 
-<a class="summary-letter" href="#Concept-Index_cp_letter-E"><b>E</b></a>
- &nbsp; 
-<a class="summary-letter" href="#Concept-Index_cp_letter-F"><b>F</b></a>
- &nbsp; 
-<a class="summary-letter" href="#Concept-Index_cp_letter-G"><b>G</b></a>
- &nbsp; 
-<a class="summary-letter" href="#Concept-Index_cp_letter-H"><b>H</b></a>
- &nbsp; 
-<a class="summary-letter" href="#Concept-Index_cp_letter-I"><b>I</b></a>
- &nbsp; 
-<a class="summary-letter" href="#Concept-Index_cp_letter-K"><b>K</b></a>
- &nbsp; 
-<a class="summary-letter" href="#Concept-Index_cp_letter-L"><b>L</b></a>
- &nbsp; 
-<a class="summary-letter" href="#Concept-Index_cp_letter-M"><b>M</b></a>
- &nbsp; 
-<a class="summary-letter" href="#Concept-Index_cp_letter-N"><b>N</b></a>
- &nbsp; 
-<a class="summary-letter" href="#Concept-Index_cp_letter-O"><b>O</b></a>
- &nbsp; 
-<a class="summary-letter" href="#Concept-Index_cp_letter-P"><b>P</b></a>
- &nbsp; 
-<a class="summary-letter" href="#Concept-Index_cp_letter-R"><b>R</b></a>
- &nbsp; 
-<a class="summary-letter" href="#Concept-Index_cp_letter-S"><b>S</b></a>
- &nbsp; 
-<a class="summary-letter" href="#Concept-Index_cp_letter-T"><b>T</b></a>
- &nbsp; 
-<a class="summary-letter" href="#Concept-Index_cp_letter-U"><b>U</b></a>
- &nbsp; 
-<a class="summary-letter" href="#Concept-Index_cp_letter-V"><b>V</b></a>
- &nbsp; 
-<a class="summary-letter" href="#Concept-Index_cp_letter-W"><b>W</b></a>
- &nbsp; 
-<a class="summary-letter" href="#Concept-Index_cp_letter-Y"><b>Y</b></a>
- &nbsp; 
-</td></tr></table>
-
-<hr>
-<div class="header">
-<p>
-Next: <a href="Index-of-Functions-and-Macros.html#Index-of-Functions-and-Macros" accesskey="n" rel="next">Index of Functions and Macros</a>, Previous: <a href="Indices.html#Indices" accesskey="p" rel="prev">Indices</a>, Up: <a href="Indices.html#Indices" accesskey="u" rel="up">Indices</a> &nbsp; [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Indices.html#Indices" title="Index" rel="index">Index</a>]</p>
-</div>
-
-
-
-</body>
-</html>

manual/Copyright.html

@@ -1,142 +0,0 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
-<html>
-<!-- 
-The flex manual is placed under the same licensing conditions as the
-rest of flex:
-
-Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2012
-The Flex Project.
-
-Copyright (C) 1990, 1997 The Regents of the University of California.
-All rights reserved.
-
-This code is derived from software contributed to Berkeley by
-Vern Paxson.
-
-The United States Government has rights in this work pursuant
-to contract no. DE-AC03-76SF00098 between the United States
-Department of Energy and the University of California.
-
-Redistribution and use in source and binary forms, with or without
-modification, are permitted provided that the following conditions
-are met:
-
-1. Redistributions of source code must retain the above copyright
-notice, this list of conditions and the following disclaimer.
-
-2. Redistributions in binary form must reproduce the above copyright
-notice, this list of conditions and the following disclaimer in the
-documentation and/or other materials provided with the distribution.
-
-Neither the name of the University nor the names of its contributors
-may be used to endorse or promote products derived from this software
-without specific prior written permission.
-
-THIS SOFTWARE IS PROVIDED "AS IS" AND WITHOUT ANY EXPRESS OR
-IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
-WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
-PURPOSE. -->
-<!-- Created by GNU Texinfo 6.1, http://www.gnu.org/software/texinfo/ -->
-<head>
-<title>Lexical Analysis With Flex, for Flex 2.6.2: Copyright</title>
-
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-</style>
-
-
-</head>
-
-<body lang="en">
-<a name="Copyright"></a>
-<div class="header">
-<p>
-Next: <a href="Reporting-Bugs.html#Reporting-Bugs" accesskey="n" rel="next">Reporting Bugs</a>, Previous: <a href="index.html#Top" accesskey="p" rel="prev">Top</a>, Up: <a href="index.html#Top" accesskey="u" rel="up">Top</a> &nbsp; [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Indices.html#Indices" title="Index" rel="index">Index</a>]</p>
-</div>
-<hr>
-<a name="Copyright-1"></a>
-<h2 class="chapter">1 Copyright</h2>
-
-<a name="index-copyright-of-flex"></a>
-<a name="index-distributing-flex"></a>
-
-<p>The flex manual is placed under the same licensing conditions as the
-rest of flex:
-</p>
-<p>Copyright &copy; 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2012
-The Flex Project.
-</p>
-<p>Copyright &copy; 1990, 1997 The Regents of the University of California.
-All rights reserved.
-</p>
-<p>This code is derived from software contributed to Berkeley by
-Vern Paxson.
-</p>
-<p>The United States Government has rights in this work pursuant
-to contract no. DE-AC03-76SF00098 between the United States
-Department of Energy and the University of California.
-</p>
-<p>Redistribution and use in source and binary forms, with or without
-modification, are permitted provided that the following conditions
-are met:
-</p>
-<ol>
-<li> Redistributions of source code must retain the above copyright
-notice, this list of conditions and the following disclaimer.
-
-</li><li> Redistributions in binary form must reproduce the above copyright
-notice, this list of conditions and the following disclaimer in the
-documentation and/or other materials provided with the distribution.
-</li></ol>
-
-<p>Neither the name of the University nor the names of its contributors
-may be used to endorse or promote products derived from this software
-without specific prior written permission.
-</p>
-<p>THIS SOFTWARE IS PROVIDED &ldquo;AS IS&rdquo; AND WITHOUT ANY EXPRESS OR
-IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
-WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
-PURPOSE.
-</p>
-
-
-
-
-</body>
-</html>

manual/Creating-Serialized-Tables.html

@@ -1,136 +0,0 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
-<html>
-<!-- 
-The flex manual is placed under the same licensing conditions as the
-rest of flex:
-
-Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2012
-The Flex Project.
-
-Copyright (C) 1990, 1997 The Regents of the University of California.
-All rights reserved.
-
-This code is derived from software contributed to Berkeley by
-Vern Paxson.
-
-The United States Government has rights in this work pursuant
-to contract no. DE-AC03-76SF00098 between the United States
-Department of Energy and the University of California.
-
-Redistribution and use in source and binary forms, with or without
-modification, are permitted provided that the following conditions
-are met:
-
-1. Redistributions of source code must retain the above copyright
-notice, this list of conditions and the following disclaimer.
-
-2. Redistributions in binary form must reproduce the above copyright
-notice, this list of conditions and the following disclaimer in the
-documentation and/or other materials provided with the distribution.
-
-Neither the name of the University nor the names of its contributors
-may be used to endorse or promote products derived from this software
-without specific prior written permission.
-
-THIS SOFTWARE IS PROVIDED "AS IS" AND WITHOUT ANY EXPRESS OR
-IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
-WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
-PURPOSE. -->
-<!-- Created by GNU Texinfo 6.1, http://www.gnu.org/software/texinfo/ -->
-<head>
-<title>Lexical Analysis With Flex, for Flex 2.6.2: Creating Serialized Tables</title>
-
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-<link href="Serialized-Tables.html#Serialized-Tables" rel="up" title="Serialized Tables">
-<link href="Loading-and-Unloading-Serialized-Tables.html#Loading-and-Unloading-Serialized-Tables" rel="next" title="Loading and Unloading Serialized Tables">
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-<style type="text/css">
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--->
-</style>
-
-
-</head>
-
-<body lang="en">
-<a name="Creating-Serialized-Tables"></a>
-<div class="header">
-<p>
-Next: <a href="Loading-and-Unloading-Serialized-Tables.html#Loading-and-Unloading-Serialized-Tables" accesskey="n" rel="next">Loading and Unloading Serialized Tables</a>, Previous: <a href="Serialized-Tables.html#Serialized-Tables" accesskey="p" rel="prev">Serialized Tables</a>, Up: <a href="Serialized-Tables.html#Serialized-Tables" accesskey="u" rel="up">Serialized Tables</a> &nbsp; [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Indices.html#Indices" title="Index" rel="index">Index</a>]</p>
-</div>
-<hr>
-<a name="Creating-Serialized-Tables-1"></a>
-<h3 class="section">22.1 Creating Serialized Tables</h3>
-<a name="index-tables_002c-creating-serialized"></a>
-<a name="index-serialization-of-tables"></a>
-
-<p>You may create a scanner with serialized tables by specifying:
-</p>
-<div class="example">
-<pre class="verbatim">    %option tables-file=FILE
-or
-    --tables-file=FILE
-</pre></div>
-
-<p>These options instruct flex to save the DFA tables to the file <var>FILE</var>. The tables
-will <em>not</em> be embedded in the generated scanner. The scanner will not
-function on its own. The scanner will be dependent upon the serialized tables. You must
-load the tables from this file at runtime before you can scan anything. 
-</p>
-<p>If you do not specify a filename to <code>--tables-file</code>, the tables will be
-saved to <samp>lex.yy.tables</samp>, where &lsquo;<samp>yy</samp>&rsquo; is the appropriate prefix.
-</p>
-<p>If your project uses several different scanners, you can concatenate the
-serialized tables into one file, and flex will find the correct set of tables,
-using the scanner prefix as part of the lookup key. An example follows:
-</p>
-<a name="index-serialized-tables_002c-multiple-scanners"></a>
-<div class="example">
-<pre class="verbatim">$ flex --tables-file --prefix=cpp cpp.l
-$ flex --tables-file --prefix=c   c.l
-$ cat lex.cpp.tables lex.c.tables  &gt;  all.tables
-</pre></div>
-
-<p>The above example created two scanners, &lsquo;<samp>cpp</samp>&rsquo;, and &lsquo;<samp>c</samp>&rsquo;. Since we did
-not specify a filename, the tables were serialized to <samp>lex.c.tables</samp> and
-<samp>lex.cpp.tables</samp>, respectively. Then, we concatenated the two files
-together into <samp>all.tables</samp>, which we will distribute with our project. At
-runtime, we will open the file and tell flex to load the tables from it.  Flex
-will find the correct tables automatically. (See next section).
-</p>
-
-
-
-</body>
-</html>

manual/Cxx.html

@@ -1,357 +0,0 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
-<html>
-<!-- 
-The flex manual is placed under the same licensing conditions as the
-rest of flex:
-
-Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2012
-The Flex Project.
-
-Copyright (C) 1990, 1997 The Regents of the University of California.
-All rights reserved.
-
-This code is derived from software contributed to Berkeley by
-Vern Paxson.
-
-The United States Government has rights in this work pursuant
-to contract no. DE-AC03-76SF00098 between the United States
-Department of Energy and the University of California.
-
-Redistribution and use in source and binary forms, with or without
-modification, are permitted provided that the following conditions
-are met:
-
-1. Redistributions of source code must retain the above copyright
-notice, this list of conditions and the following disclaimer.
-
-2. Redistributions in binary form must reproduce the above copyright
-notice, this list of conditions and the following disclaimer in the
-documentation and/or other materials provided with the distribution.
-
-Neither the name of the University nor the names of its contributors
-may be used to endorse or promote products derived from this software
-without specific prior written permission.
-
-THIS SOFTWARE IS PROVIDED "AS IS" AND WITHOUT ANY EXPRESS OR
-IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
-WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
-PURPOSE. -->
-<!-- Created by GNU Texinfo 6.1, http://www.gnu.org/software/texinfo/ -->
-<head>
-<title>Lexical Analysis With Flex, for Flex 2.6.2: Cxx</title>
-
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-</style>
-
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-</head>
-
-<body lang="en">
-<a name="Cxx"></a>
-<div class="header">
-<p>
-Next: <a href="Reentrant.html#Reentrant" accesskey="n" rel="next">Reentrant</a>, Previous: <a href="Performance.html#Performance" accesskey="p" rel="prev">Performance</a>, Up: <a href="index.html#Top" accesskey="u" rel="up">Top</a> &nbsp; [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Indices.html#Indices" title="Index" rel="index">Index</a>]</p>
-</div>
-<hr>
-<a name="Generating-C_002b_002b-Scanners"></a>
-<h2 class="chapter">18 Generating C++ Scanners</h2>
-
-<a name="index-c_002b_002b_002c-experimental-form-of-scanner-class"></a>
-<a name="index-experimental-form-of-c_002b_002b-scanner-class"></a>
-<p><strong>IMPORTANT</strong>: the present form of the scanning class is <em>experimental</em>
-and may change considerably between major releases.
-</p>
-<a name="index-C_002b_002b"></a>
-<a name="index-member-functions_002c-C_002b_002b"></a>
-<a name="index-methods_002c-c_002b_002b"></a>
-<p><code>flex</code> provides two different ways to generate scanners for use
-with C++.  The first way is to simply compile a scanner generated by
-<code>flex</code> using a C++ compiler instead of a C compiler.  You should
-not encounter any compilation errors (see <a href="Reporting-Bugs.html#Reporting-Bugs">Reporting Bugs</a>).  You can
-then use C++ code in your rule actions instead of C code.  Note that the
-default input source for your scanner remains <samp>yyin</samp>, and default
-echoing is still done to <samp>yyout</samp>.  Both of these remain <code>FILE
-*</code> variables and not C++ <em>streams</em>.
-</p>
-<p>You can also use <code>flex</code> to generate a C++ scanner class, using the
-&lsquo;<samp>-+</samp>&rsquo; option (or, equivalently, <code>%option c++)</code>, which is
-automatically specified if the name of the <code>flex</code> executable ends
-in a &rsquo;+&rsquo;, such as <code>flex++</code>.  When using this option, <code>flex</code>
-defaults to generating the scanner to the file <samp>lex.yy.cc</samp> instead
-of <samp>lex.yy.c</samp>.  The generated scanner includes the header file
-<samp>FlexLexer.h</samp>, which defines the interface to two C++ classes.
-</p>
-<p>The first class in <samp>FlexLexer.h</samp>, <code>FlexLexer</code>,
-provides an abstract base class defining the general scanner class
-interface.  It provides the following member functions:
-</p>
-<dl compact="compact">
-<dd><a name="index-YYText-_0028C_002b_002b-only_0029"></a>
-</dd>
-<dt><code>const char* YYText()</code></dt>
-<dd><p>returns the text of the most recently matched token, the equivalent of
-<code>yytext</code>.
-</p>
-<a name="index-YYLeng-_0028C_002b_002b-only_0029"></a>
-</dd>
-<dt><code>int YYLeng()</code></dt>
-<dd><p>returns the length of the most recently matched token, the equivalent of
-<code>yyleng</code>.
-</p>
-<a name="index-lineno-_0028C_002b_002b-only_0029"></a>
-</dd>
-<dt><code>int lineno() const</code></dt>
-<dd><p>returns the current input line number (see <code>%option yylineno)</code>, or
-<code>1</code> if <code>%option yylineno</code> was not used.
-</p>
-<a name="index-set_005fdebug-_0028C_002b_002b-only_0029"></a>
-</dd>
-<dt><code>void set_debug( int flag )</code></dt>
-<dd><p>sets the debugging flag for the scanner, equivalent to assigning to
-<code>yy_flex_debug</code> (see <a href="Scanner-Options.html#Scanner-Options">Scanner Options</a>).  Note that you must build
-the scanner using <code>%option debug</code> to include debugging information
-in it.
-</p>
-<a name="index-debug-_0028C_002b_002b-only_0029"></a>
-</dd>
-<dt><code>int debug() const</code></dt>
-<dd><p>returns the current setting of the debugging flag.
-</p></dd>
-</dl>
-
-<p>Also provided are member functions equivalent to
-<code>yy_switch_to_buffer()</code>, <code>yy_create_buffer()</code> (though the
-first argument is an <code>istream&amp;</code> object reference and not a
-<code>FILE*)</code>, <code>yy_flush_buffer()</code>, <code>yy_delete_buffer()</code>, and
-<code>yyrestart()</code> (again, the first argument is a <code>istream&amp;</code>
-object reference).
-</p>
-<a name="index-yyFlexLexer-_0028C_002b_002b-only_0029"></a>
-<a name="index-FlexLexer-_0028C_002b_002b-only_0029"></a>
-<p>The second class defined in <samp>FlexLexer.h</samp> is <code>yyFlexLexer</code>,
-which is derived from <code>FlexLexer</code>.  It defines the following
-additional member functions:
-</p>
-<dl compact="compact">
-<dd><a name="index-yyFlexLexer-constructor-_0028C_002b_002b-only_0029"></a>
-</dd>
-<dt><code>yyFlexLexer( istream* arg_yyin = 0, ostream* arg_yyout = 0 )</code></dt>
-<dt><code>yyFlexLexer( istream&amp; arg_yyin, ostream&amp; arg_yyout )</code></dt>
-<dd><p>constructs a <code>yyFlexLexer</code> object using the given streams for input
-and output.  If not specified, the streams default to <code>cin</code> and
-<code>cout</code>, respectively.  <code>yyFlexLexer</code> does not take ownership of
-its stream arguments.  It&rsquo;s up to the user to ensure the streams pointed
-to remain alive at least as long as the <code>yyFlexLexer</code> instance.
-</p>
-<a name="index-yylex-_0028C_002b_002b-version_0029"></a>
-</dd>
-<dt><code>virtual int yylex()</code></dt>
-<dd><p>performs the same role is <code>yylex()</code> does for ordinary <code>flex</code>
-scanners: it scans the input stream, consuming tokens, until a rule&rsquo;s
-action returns a value.  If you derive a subclass <code>S</code> from
-<code>yyFlexLexer</code> and want to access the member functions and variables
-of <code>S</code> inside <code>yylex()</code>, then you need to use <code>%option
-yyclass=&quot;S&quot;</code> to inform <code>flex</code> that you will be using that subclass
-instead of <code>yyFlexLexer</code>.  In this case, rather than generating
-<code>yyFlexLexer::yylex()</code>, <code>flex</code> generates <code>S::yylex()</code>
-(and also generates a dummy <code>yyFlexLexer::yylex()</code> that calls
-<code>yyFlexLexer::LexerError()</code> if called).
-</p>
-<a name="index-switch_005fstreams-_0028C_002b_002b-only_0029"></a>
-</dd>
-<dt><code>virtual void switch_streams(istream* new_in = 0, ostream* new_out = 0)</code></dt>
-<dt><code>virtual void switch_streams(istream&amp; new_in, ostream&amp; new_out)</code></dt>
-<dd><p>reassigns <code>yyin</code> to <code>new_in</code> (if non-null) and <code>yyout</code> to
-<code>new_out</code> (if non-null), deleting the previous input buffer if
-<code>yyin</code> is reassigned.
-</p>
-</dd>
-<dt><code>int yylex( istream* new_in, ostream* new_out = 0 )</code></dt>
-<dt><code>int yylex( istream&amp; new_in, ostream&amp; new_out )</code></dt>
-<dd><p>first switches the input streams via <code>switch_streams( new_in,
-new_out )</code> and then returns the value of <code>yylex()</code>.
-</p></dd>
-</dl>
-
-<p>In addition, <code>yyFlexLexer</code> defines the following protected virtual
-functions which you can redefine in derived classes to tailor the
-scanner:
-</p>
-<dl compact="compact">
-<dd><a name="index-LexerInput-_0028C_002b_002b-only_0029"></a>
-</dd>
-<dt><code>virtual int LexerInput( char* buf, int max_size )</code></dt>
-<dd><p>reads up to <code>max_size</code> characters into <code>buf</code> and returns the
-number of characters read.  To indicate end-of-input, return 0
-characters.  Note that <code>interactive</code> scanners (see the &lsquo;<samp>-B</samp>&rsquo;
-and &lsquo;<samp>-I</samp>&rsquo; flags in <a href="Scanner-Options.html#Scanner-Options">Scanner Options</a>) define the macro
-<code>YY_INTERACTIVE</code>.  If you redefine <code>LexerInput()</code> and need to
-take different actions depending on whether or not the scanner might be
-scanning an interactive input source, you can test for the presence of
-this name via <code>#ifdef</code> statements.
-</p>
-<a name="index-LexerOutput-_0028C_002b_002b-only_0029"></a>
-</dd>
-<dt><code>virtual void LexerOutput( const char* buf, int size )</code></dt>
-<dd><p>writes out <code>size</code> characters from the buffer <code>buf</code>, which, while
-<code>NUL</code>-terminated, may also contain internal <code>NUL</code>s if the
-scanner&rsquo;s rules can match text with <code>NUL</code>s in them.
-</p>
-<a name="index-error-reporting_002c-in-C_002b_002b"></a>
-<a name="index-LexerError-_0028C_002b_002b-only_0029"></a>
-</dd>
-<dt><code>virtual void LexerError( const char* msg )</code></dt>
-<dd><p>reports a fatal error message.  The default version of this function
-writes the message to the stream <code>cerr</code> and exits.
-</p></dd>
-</dl>
-
-<p>Note that a <code>yyFlexLexer</code> object contains its <em>entire</em>
-scanning state.  Thus you can use such objects to create reentrant
-scanners, but see also <a href="Reentrant.html#Reentrant">Reentrant</a>.  You can instantiate multiple
-instances of the same <code>yyFlexLexer</code> class, and you can also combine
-multiple C++ scanner classes together in the same program using the
-&lsquo;<samp>-P</samp>&rsquo; option discussed above.
-</p>
-<p>Finally, note that the <code>%array</code> feature is not available to C++
-scanner classes; you must use <code>%pointer</code> (the default).
-</p>
-<p>Here is an example of a simple C++ scanner:
-</p>
-<a name="index-C_002b_002b-scanners_002c-use-of"></a>
-<div class="example">
-<pre class="verbatim">     // An example of using the flex C++ scanner class.
-
-    %{
-    #include &lt;iostream&gt;
-    using namespace std;
-    int mylineno = 0;
-    %}
-
-    %option noyywrap c++
-
-    string  \&quot;[^\n&quot;]+\&quot;
-
-    ws      [ \t]+
-
-    alpha   [A-Za-z]
-    dig     [0-9]
-    name    ({alpha}|{dig}|\$)({alpha}|{dig}|[_.\-/$])*
-    num1    [-+]?{dig}+\.?([eE][-+]?{dig}+)?
-    num2    [-+]?{dig}*\.{dig}+([eE][-+]?{dig}+)?
-    number  {num1}|{num2}
-
-    %%
-
-    {ws}    /* skip blanks and tabs */
-
-    &quot;/*&quot;    {
-            int c;
-
-            while((c = yyinput()) != 0)
-                {
-                if(c == '\n')
-                    ++mylineno;
-
-                else if(c == '*')
-                    {
-                    if((c = yyinput()) == '/')
-                        break;
-                    else
-                        unput(c);
-                    }
-                }
-            }
-
-    {number}  cout &lt;&lt; &quot;number &quot; &lt;&lt; YYText() &lt;&lt; '\n';
-
-    \n        mylineno++;
-
-    {name}    cout &lt;&lt; &quot;name &quot; &lt;&lt; YYText() &lt;&lt; '\n';
-
-    {string}  cout &lt;&lt; &quot;string &quot; &lt;&lt; YYText() &lt;&lt; '\n';
-
-    %%
-
-	// This include is required if main() is an another source file.
-	//#include &lt;FlexLexer.h&gt;
-
-    int main( int /* argc */, char** /* argv */ )
-    {
-        FlexLexer* lexer = new yyFlexLexer;
-        while(lexer-&gt;yylex() != 0)
-            ;
-        return 0;
-    }
-</pre></div>
-
-<a name="index-C_002b_002b_002c-multiple-different-scanners"></a>
-<p>If you want to create multiple (different) lexer classes, you use the
-&lsquo;<samp>-P</samp>&rsquo; flag (or the <code>prefix=</code> option) to rename each
-<code>yyFlexLexer</code> to some other &lsquo;<samp>xxFlexLexer</samp>&rsquo;.  You then can
-include <samp>&lt;FlexLexer.h&gt;</samp> in your other sources once per lexer class,
-first renaming <code>yyFlexLexer</code> as follows:
-</p>
-<a name="index-include-files_002c-with-C_002b_002b"></a>
-<a name="index-header-files_002c-with-C_002b_002b"></a>
-<a name="index-C_002b_002b-scanners_002c-including-multiple-scanners"></a>
-<div class="example">
-<pre class="verbatim">    #undef yyFlexLexer
-    #define yyFlexLexer xxFlexLexer
-    #include &lt;FlexLexer.h&gt;
-
-    #undef yyFlexLexer
-    #define yyFlexLexer zzFlexLexer
-    #include &lt;FlexLexer.h&gt;
-</pre></div>
-
-<p>if, for example, you used <code>%option prefix=&quot;xx&quot;</code> for one of your
-scanners and <code>%option prefix=&quot;zz&quot;</code> for the other.
-</p>
-<hr>
-<div class="header">
-<p>
-Next: <a href="Reentrant.html#Reentrant" accesskey="n" rel="next">Reentrant</a>, Previous: <a href="Performance.html#Performance" accesskey="p" rel="prev">Performance</a>, Up: <a href="index.html#Top" accesskey="u" rel="up">Top</a> &nbsp; [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Indices.html#Indices" title="Index" rel="index">Index</a>]</p>
-</div>
-
-
-
-</body>
-</html>

manual/Debugging-Options.html

@@ -1,221 +0,0 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
-<html>
-<!-- 
-The flex manual is placed under the same licensing conditions as the
-rest of flex:
-
-Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2012
-The Flex Project.
-
-Copyright (C) 1990, 1997 The Regents of the University of California.
-All rights reserved.
-
-This code is derived from software contributed to Berkeley by
-Vern Paxson.
-
-The United States Government has rights in this work pursuant
-to contract no. DE-AC03-76SF00098 between the United States
-Department of Energy and the University of California.
-
-Redistribution and use in source and binary forms, with or without
-modification, are permitted provided that the following conditions
-are met:
-
-1. Redistributions of source code must retain the above copyright
-notice, this list of conditions and the following disclaimer.
-
-2. Redistributions in binary form must reproduce the above copyright
-notice, this list of conditions and the following disclaimer in the
-documentation and/or other materials provided with the distribution.
-
-Neither the name of the University nor the names of its contributors
-may be used to endorse or promote products derived from this software
-without specific prior written permission.
-
-THIS SOFTWARE IS PROVIDED "AS IS" AND WITHOUT ANY EXPRESS OR
-IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
-WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
-PURPOSE. -->
-<!-- Created by GNU Texinfo 6.1, http://www.gnu.org/software/texinfo/ -->
-<head>
-<title>Lexical Analysis With Flex, for Flex 2.6.2: Debugging Options</title>
-
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-<link href="index.html#SEC_Contents" rel="contents" title="Table of Contents">
-<link href="Scanner-Options.html#Scanner-Options" rel="up" title="Scanner Options">
-<link href="Miscellaneous-Options.html#Miscellaneous-Options" rel="next" title="Miscellaneous Options">
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-</head>
-
-<body lang="en">
-<a name="Debugging-Options"></a>
-<div class="header">
-<p>
-Next: <a href="Miscellaneous-Options.html#Miscellaneous-Options" accesskey="n" rel="next">Miscellaneous Options</a>, Previous: <a href="Options-for-Scanner-Speed-and-Size.html#Options-for-Scanner-Speed-and-Size" accesskey="p" rel="prev">Options for Scanner Speed and Size</a>, Up: <a href="Scanner-Options.html#Scanner-Options" accesskey="u" rel="up">Scanner Options</a> &nbsp; [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Indices.html#Indices" title="Index" rel="index">Index</a>]</p>
-</div>
-<hr>
-<a name="Debugging-Options-1"></a>
-<h3 class="section">16.5 Debugging Options</h3>
-
-<dl compact="compact">
-<dd>
-<a name="option_002dbackup"></a><a name="index-_002db"></a>
-<a name="index-_002d_002d_002dbackup"></a>
-<a name="index-backup"></a>
-</dd>
-<dt>&lsquo;<samp>-b, --backup, <code>%option backup</code></samp>&rsquo;</dt>
-<dd><p>Generate backing-up information to <samp>lex.backup</samp>.  This is a list of
-scanner states which require backing up and the input characters on
-which they do so.  By adding rules one can remove backing-up states.  If
-<em>all</em> backing-up states are eliminated and &lsquo;<samp>-Cf</samp>&rsquo; or <code>-CF</code>
-is used, the generated scanner will run faster (see the &lsquo;<samp>--perf-report</samp>&rsquo; flag).
-Only users who wish to squeeze every last cycle out of their scanners
-need worry about this option.  (see <a href="Performance.html#Performance">Performance</a>).
-</p>
-
-
-<a name="option_002ddebug"></a><a name="index-_002dd"></a>
-<a name="index-_002d_002d_002ddebug"></a>
-<a name="index-debug"></a>
-</dd>
-<dt>&lsquo;<samp>-d, --debug, <code>%option debug</code></samp>&rsquo;</dt>
-<dd><p>makes the generated scanner run in <em>debug</em> mode.  Whenever a pattern
-is recognized and the global variable <code>yy_flex_debug</code> is non-zero
-(which is the default), the scanner will write to <samp>stderr</samp> a line
-of the form:
-</p>
-<div class="example">
-<pre class="verbatim">    -accepting rule at line 53 (&quot;the matched text&quot;)
-</pre></div>
-
-<p>The line number refers to the location of the rule in the file defining
-the scanner (i.e., the file that was fed to flex).  Messages are also
-generated when the scanner backs up, accepts the default rule, reaches
-the end of its input buffer (or encounters a NUL; at this point, the two
-look the same as far as the scanner&rsquo;s concerned), or reaches an
-end-of-file.
-</p>
-
-
-<a name="option_002dperf_002dreport"></a><a name="index-_002dp"></a>
-<a name="index-_002d_002d_002dperf_002dreport"></a>
-<a name="index-perf_002dreport"></a>
-</dd>
-<dt>&lsquo;<samp>-p, --perf-report, <code>%option perf-report</code></samp>&rsquo;</dt>
-<dd><p>generates a performance report to <samp>stderr</samp>.  The report consists of
-comments regarding features of the <code>flex</code> input file which will
-cause a serious loss of performance in the resulting scanner.  If you
-give the flag twice, you will also get comments regarding features that
-lead to minor performance losses.
-</p>
-<p>Note that the use of <code>REJECT</code>, and
-variable trailing context (see <a href="Limitations.html#Limitations">Limitations</a>) entails a substantial
-performance penalty; use of <code>yymore()</code>, the &lsquo;<samp>^</samp>&rsquo; operator, and
-the &lsquo;<samp>--interactive</samp>&rsquo; flag entail minor performance penalties.
-</p>
-
-
-<a name="option_002dnodefault"></a><a name="index-_002ds"></a>
-<a name="index-_002d_002d_002dnodefault"></a>
-<a name="index-nodefault"></a>
-</dd>
-<dt>&lsquo;<samp>-s, --nodefault, <code>%option nodefault</code></samp>&rsquo;</dt>
-<dd><p>causes the <em>default rule</em> (that unmatched scanner input is echoed
-to <samp>stdout)</samp> to be suppressed.  If the scanner encounters input
-that does not match any of its rules, it aborts with an error.  This
-option is useful for finding holes in a scanner&rsquo;s rule set.
-</p>
-
-
-<a name="option_002dtrace"></a><a name="index-_002dT"></a>
-<a name="index-_002d_002d_002dtrace"></a>
-<a name="index-trace"></a>
-</dd>
-<dt>&lsquo;<samp>-T, --trace, <code>%option trace</code></samp>&rsquo;</dt>
-<dd><p>makes <code>flex</code> run in <em>trace</em> mode.  It will generate a lot of
-messages to <samp>stderr</samp> concerning the form of the input and the
-resultant non-deterministic and deterministic finite automata.  This
-option is mostly for use in maintaining <code>flex</code>.
-</p>
-
-
-<a name="option_002dnowarn"></a><a name="index-_002dw"></a>
-<a name="index-_002d_002d_002dnowarn"></a>
-<a name="index-nowarn"></a>
-</dd>
-<dt>&lsquo;<samp>-w, --nowarn, <code>%option nowarn</code></samp>&rsquo;</dt>
-<dd><p>suppresses warning messages.
-</p>
-
-
-<a name="option_002dverbose"></a><a name="index-_002dv"></a>
-<a name="index-_002d_002d_002dverbose"></a>
-<a name="index-verbose"></a>
-</dd>
-<dt>&lsquo;<samp>-v, --verbose, <code>%option verbose</code></samp>&rsquo;</dt>
-<dd><p>specifies that <code>flex</code> should write to <samp>stderr</samp> a summary of
-statistics regarding the scanner it generates.  Most of the statistics
-are meaningless to the casual <code>flex</code> user, but the first line
-identifies the version of <code>flex</code> (same as reported by &lsquo;<samp>--version</samp>&rsquo;),
-and the next line the flags used when generating the scanner, including
-those that are on by default.
-</p>
-
-
-<a name="option_002dwarn"></a><a name="index-_002d_002d_002dwarn"></a>
-<a name="index-warn"></a>
-</dd>
-<dt>&lsquo;<samp>--warn, <code>%option warn</code></samp>&rsquo;</dt>
-<dd><p>warn about certain things. In particular, if the default rule can be
-matched but no default rule has been given, the flex will warn you.
-We recommend using this option always.
-</p>
-</dd>
-</dl>
-
-<hr>
-<div class="header">
-<p>
-Next: <a href="Miscellaneous-Options.html#Miscellaneous-Options" accesskey="n" rel="next">Miscellaneous Options</a>, Previous: <a href="Options-for-Scanner-Speed-and-Size.html#Options-for-Scanner-Speed-and-Size" accesskey="p" rel="prev">Options for Scanner Speed and Size</a>, Up: <a href="Scanner-Options.html#Scanner-Options" accesskey="u" rel="up">Scanner Options</a> &nbsp; [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Indices.html#Indices" title="Index" rel="index">Index</a>]</p>
-</div>
-
-
-
-</body>
-</html>

manual/Definitions-Section.html

@@ -1,192 +0,0 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
-<html>
-<!-- 
-The flex manual is placed under the same licensing conditions as the
-rest of flex:
-
-Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2012
-The Flex Project.
-
-Copyright (C) 1990, 1997 The Regents of the University of California.
-All rights reserved.
-
-This code is derived from software contributed to Berkeley by
-Vern Paxson.
-
-The United States Government has rights in this work pursuant
-to contract no. DE-AC03-76SF00098 between the United States
-Department of Energy and the University of California.
-
-Redistribution and use in source and binary forms, with or without
-modification, are permitted provided that the following conditions
-are met:
-
-1. Redistributions of source code must retain the above copyright
-notice, this list of conditions and the following disclaimer.
-
-2. Redistributions in binary form must reproduce the above copyright
-notice, this list of conditions and the following disclaimer in the
-documentation and/or other materials provided with the distribution.
-
-Neither the name of the University nor the names of its contributors
-may be used to endorse or promote products derived from this software
-without specific prior written permission.
-
-THIS SOFTWARE IS PROVIDED "AS IS" AND WITHOUT ANY EXPRESS OR
-IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
-WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
-PURPOSE. -->
-<!-- Created by GNU Texinfo 6.1, http://www.gnu.org/software/texinfo/ -->
-<head>
-<title>Lexical Analysis With Flex, for Flex 2.6.2: Definitions Section</title>
-
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-<link href="Format.html#Format" rel="up" title="Format">
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-<a name="Definitions-Section"></a>
-<div class="header">
-<p>
-Next: <a href="Rules-Section.html#Rules-Section" accesskey="n" rel="next">Rules Section</a>, Previous: <a href="Format.html#Format" accesskey="p" rel="prev">Format</a>, Up: <a href="Format.html#Format" accesskey="u" rel="up">Format</a> &nbsp; [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Indices.html#Indices" title="Index" rel="index">Index</a>]</p>
-</div>
-<hr>
-<a name="Format-of-the-Definitions-Section"></a>
-<h3 class="section">5.1 Format of the Definitions Section</h3>
-
-<a name="index-input-file_002c-Definitions-section"></a>
-<a name="index-Definitions_002c-in-flex-input"></a>
-<p>The <em>definitions section</em> contains declarations of simple <em>name</em>
-definitions to simplify the scanner specification, and declarations of
-<em>start conditions</em>, which are explained in a later section.
-</p>
-<a name="index-aliases_002c-how-to-define"></a>
-<a name="index-pattern-aliases_002c-how-to-define"></a>
-<p>Name definitions have the form:
-</p>
-<div class="example">
-<pre class="verbatim">    name definition
-</pre></div>
-
-<p>The &lsquo;<samp>name</samp>&rsquo; is a word beginning with a letter or an underscore
-(&lsquo;<samp>_</samp>&rsquo;) followed by zero or more letters, digits, &lsquo;<samp>_</samp>&rsquo;, or
-&lsquo;<samp>-</samp>&rsquo; (dash).  The definition is taken to begin at the first
-non-whitespace character following the name and continuing to the end of
-the line.  The definition can subsequently be referred to using
-&lsquo;<samp>{name}</samp>&rsquo;, which will expand to &lsquo;<samp>(definition)</samp>&rsquo;.  For example,
-</p>
-<a name="index-pattern-aliases_002c-defining"></a>
-<a name="index-defining-pattern-aliases"></a>
-<div class="example">
-<pre class="verbatim">    DIGIT    [0-9]
-    ID       [a-z][a-z0-9]*
-</pre></div>
-
-<p>Defines &lsquo;<samp>DIGIT</samp>&rsquo; to be a regular expression which matches a single
-digit, and &lsquo;<samp>ID</samp>&rsquo; to be a regular expression which matches a letter
-followed by zero-or-more letters-or-digits.  A subsequent reference to
-</p>
-<a name="index-pattern-aliases_002c-use-of"></a>
-<div class="example">
-<pre class="verbatim">    {DIGIT}+&quot;.&quot;{DIGIT}*
-</pre></div>
-
-<p>is identical to
-</p>
-<div class="example">
-<pre class="verbatim">    ([0-9])+&quot;.&quot;([0-9])*
-</pre></div>
-
-<p>and matches one-or-more digits followed by a &lsquo;<samp>.</samp>&rsquo; followed by
-zero-or-more digits.
-</p>
-<a name="index-comments-in-flex-input"></a>
-<p>An unindented comment (i.e., a line
-beginning with &lsquo;<samp>/*</samp>&rsquo;) is copied verbatim to the output up
-to the next &lsquo;<samp>*/</samp>&rsquo;.
-</p>
-<a name="index-_0025_007b-and-_0025_007d_002c-in-Definitions-Section"></a>
-<a name="index-embedding-C-code-in-flex-input"></a>
-<a name="index-C-code-in-flex-input"></a>
-<p>Any <em>indented</em> text or text enclosed in &lsquo;<samp>%{</samp>&rsquo; and &lsquo;<samp>%}</samp>&rsquo;
-is also copied verbatim to the output (with the %{ and %} symbols
-removed).  The %{ and %} symbols must appear unindented on lines by
-themselves.
-</p>
-<a name="index-_0025top"></a>
-
-<p>A <code>%top</code> block is similar to a &lsquo;<samp>%{</samp>&rsquo; ... &lsquo;<samp>%}</samp>&rsquo; block, except
-that the code in a <code>%top</code> block is relocated to the <em>top</em> of the
-generated file, before any flex definitions <a name="DOCF1" href="#FOOT1"><sup>1</sup></a>. 
-The <code>%top</code> block is useful when you want certain preprocessor macros to be
-defined or certain files to be included before the generated code.
-The single characters, &lsquo;<samp>{</samp>&rsquo;  and &lsquo;<samp>}</samp>&rsquo; are used to delimit the
-<code>%top</code> block, as show in the example below:
-</p>
-<div class="example">
-<pre class="verbatim">    %top{
-        /* This code goes at the &quot;top&quot; of the generated file. */
-        #include &lt;stdint.h&gt;
-        #include &lt;inttypes.h&gt;
-    }
-</pre></div>
-
-<p>Multiple <code>%top</code> blocks are allowed, and their order is preserved.
-</p>
-<div class="footnote">
-<hr>
-<h4 class="footnotes-heading">Footnotes</h4>
-
-<h3><a name="FOOT1" href="#DOCF1">(1)</a></h3>
-<p>Actually,
-<code>yyIN_HEADER</code> is defined before the &lsquo;<samp>%top</samp>&rsquo; block.</p>
-</div>
-<hr>
-<div class="header">
-<p>
-Next: <a href="Rules-Section.html#Rules-Section" accesskey="n" rel="next">Rules Section</a>, Previous: <a href="Format.html#Format" accesskey="p" rel="prev">Format</a>, Up: <a href="Format.html#Format" accesskey="u" rel="up">Format</a> &nbsp; [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Indices.html#Indices" title="Index" rel="index">Index</a>]</p>
-</div>
-
-
-
-</body>
-</html>

manual/Diagnostics.html

@@ -1,182 +0,0 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
-<html>
-<!-- 
-The flex manual is placed under the same licensing conditions as the
-rest of flex:
-
-Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2012
-The Flex Project.
-
-Copyright (C) 1990, 1997 The Regents of the University of California.
-All rights reserved.
-
-This code is derived from software contributed to Berkeley by
-Vern Paxson.
-
-The United States Government has rights in this work pursuant
-to contract no. DE-AC03-76SF00098 between the United States
-Department of Energy and the University of California.
-
-Redistribution and use in source and binary forms, with or without
-modification, are permitted provided that the following conditions
-are met:
-
-1. Redistributions of source code must retain the above copyright
-notice, this list of conditions and the following disclaimer.
-
-2. Redistributions in binary form must reproduce the above copyright
-notice, this list of conditions and the following disclaimer in the
-documentation and/or other materials provided with the distribution.
-
-Neither the name of the University nor the names of its contributors
-may be used to endorse or promote products derived from this software
-without specific prior written permission.
-
-THIS SOFTWARE IS PROVIDED "AS IS" AND WITHOUT ANY EXPRESS OR
-IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
-WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
-PURPOSE. -->
-<!-- Created by GNU Texinfo 6.1, http://www.gnu.org/software/texinfo/ -->
-<head>
-<title>Lexical Analysis With Flex, for Flex 2.6.2: Diagnostics</title>
-
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-<link href="Tables-File-Format.html#Tables-File-Format" rel="prev" title="Tables File Format">
-<style type="text/css">
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-div.display {margin-left: 3.2em}
-div.example {margin-left: 3.2em}
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-</style>
-
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-</head>
-
-<body lang="en">
-<a name="Diagnostics"></a>
-<div class="header">
-<p>
-Next: <a href="Limitations.html#Limitations" accesskey="n" rel="next">Limitations</a>, Previous: <a href="Serialized-Tables.html#Serialized-Tables" accesskey="p" rel="prev">Serialized Tables</a>, Up: <a href="index.html#Top" accesskey="u" rel="up">Top</a> &nbsp; [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Indices.html#Indices" title="Index" rel="index">Index</a>]</p>
-</div>
-<hr>
-<a name="Diagnostics-1"></a>
-<h2 class="chapter">23 Diagnostics</h2>
-
-<a name="index-error-reporting_002c-diagnostic-messages"></a>
-<a name="index-warnings_002c-diagnostic-messages"></a>
-
-<p>The following is a list of <code>flex</code> diagnostic messages:
-</p>
-<ul>
-<li> &lsquo;<samp>warning, rule cannot be matched</samp>&rsquo; indicates that the given rule
-cannot be matched because it follows other rules that will always match
-the same text as it.  For example, in the following &lsquo;<samp>foo</samp>&rsquo; cannot be
-matched because it comes after an identifier &ldquo;catch-all&rdquo; rule:
-
-<a name="index-warning_002c-rule-cannot-be-matched"></a>
-<div class="example">
-<pre class="verbatim">    [a-z]+    got_identifier();
-    foo       got_foo();
-</pre></div>
-
-<p>Using <code>REJECT</code> in a scanner suppresses this warning.
-</p>
-</li><li> &lsquo;<samp>warning, -s option given but default rule can be matched</samp>&rsquo; means
-that it is possible (perhaps only in a particular start condition) that
-the default rule (match any single character) is the only one that will
-match a particular input.  Since &lsquo;<samp>-s</samp>&rsquo; was given, presumably this is
-not intended.
-
-</li><li> <code>reject_used_but_not_detected undefined</code> or
-<code>yymore_used_but_not_detected undefined</code>. These errors can occur
-at compile time.  They indicate that the scanner uses <code>REJECT</code> or
-<code>yymore()</code> but that <code>flex</code> failed to notice the fact, meaning
-that <code>flex</code> scanned the first two sections looking for occurrences
-of these actions and failed to find any, but somehow you snuck some in
-(via a #include file, for example).  Use <code>%option reject</code> or
-<code>%option yymore</code> to indicate to <code>flex</code> that you really do use
-these features.
-
-</li><li> &lsquo;<samp>flex scanner jammed</samp>&rsquo;. a scanner compiled with
-&lsquo;<samp>-s</samp>&rsquo; has encountered an input string which wasn&rsquo;t matched by any of
-its rules.  This error can also occur due to internal problems.
-
-</li><li> &lsquo;<samp>token too large, exceeds YYLMAX</samp>&rsquo;. your scanner uses <code>%array</code>
-and one of its rules matched a string longer than the <code>YYLMAX</code>
-constant (8K bytes by default).  You can increase the value by
-#define&rsquo;ing <code>YYLMAX</code> in the definitions section of your <code>flex</code>
-input.
-
-</li><li> &lsquo;<samp>scanner requires -8 flag to use the character 'x'</samp>&rsquo;. Your scanner
-specification includes recognizing the 8-bit character &lsquo;<samp>'x'</samp>&rsquo; and
-you did not specify the -8 flag, and your scanner defaulted to 7-bit
-because you used the &lsquo;<samp>-Cf</samp>&rsquo; or &lsquo;<samp>-CF</samp>&rsquo; table compression options.
-See the discussion of the &lsquo;<samp>-7</samp>&rsquo; flag, <a href="Scanner-Options.html#Scanner-Options">Scanner Options</a>, for
-details.
-
-</li><li> &lsquo;<samp>flex scanner push-back overflow</samp>&rsquo;. you used <code>unput()</code> to push
-back so much text that the scanner&rsquo;s buffer could not hold both the
-pushed-back text and the current token in <code>yytext</code>.  Ideally the
-scanner should dynamically resize the buffer in this case, but at
-present it does not.
-
-</li><li> &lsquo;<samp>input buffer overflow, can't enlarge buffer because scanner uses
-REJECT</samp>&rsquo;.  the scanner was working on matching an extremely large token
-and needed to expand the input buffer.  This doesn&rsquo;t work with scanners
-that use <code>REJECT</code>.
-
-</li><li> &lsquo;<samp>fatal flex scanner internal error--end of buffer missed</samp>&rsquo;. This can
-occur in a scanner which is reentered after a long-jump has jumped out
-(or over) the scanner&rsquo;s activation frame.  Before reentering the
-scanner, use:
-<div class="example">
-<pre class="verbatim">    yyrestart( yyin );
-</pre></div>
-<p>or, as noted above, switch to using the C++ scanner class.
-</p>
-</li><li> &lsquo;<samp>too many start conditions in &lt;&gt; construct!</samp>&rsquo;  you listed more start
-conditions in a &lt;&gt; construct than exist (so you must have listed at
-least one of them twice).
-</li></ul>
-
-<hr>
-<div class="header">
-<p>
-Next: <a href="Limitations.html#Limitations" accesskey="n" rel="next">Limitations</a>, Previous: <a href="Serialized-Tables.html#Serialized-Tables" accesskey="p" rel="prev">Serialized Tables</a>, Up: <a href="index.html#Top" accesskey="u" rel="up">Top</a> &nbsp; [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Indices.html#Indices" title="Index" rel="index">Index</a>]</p>
-</div>
-
-
-
-</body>
-</html>

manual/Does-flex-support-recursive-pattern-definitions_003f.html

@@ -1,115 +0,0 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
-<html>
-<!-- 
-The flex manual is placed under the same licensing conditions as the
-rest of flex:
-
-Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2012
-The Flex Project.
-
-Copyright (C) 1990, 1997 The Regents of the University of California.
-All rights reserved.
-
-This code is derived from software contributed to Berkeley by
-Vern Paxson.
-
-The United States Government has rights in this work pursuant
-to contract no. DE-AC03-76SF00098 between the United States
-Department of Energy and the University of California.
-
-Redistribution and use in source and binary forms, with or without
-modification, are permitted provided that the following conditions
-are met:
-
-1. Redistributions of source code must retain the above copyright
-notice, this list of conditions and the following disclaimer.
-
-2. Redistributions in binary form must reproduce the above copyright
-notice, this list of conditions and the following disclaimer in the
-documentation and/or other materials provided with the distribution.
-
-Neither the name of the University nor the names of its contributors
-may be used to endorse or promote products derived from this software
-without specific prior written permission.
-
-THIS SOFTWARE IS PROVIDED "AS IS" AND WITHOUT ANY EXPRESS OR
-IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
-WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
-PURPOSE. -->
-<!-- Created by GNU Texinfo 6.1, http://www.gnu.org/software/texinfo/ -->
-<head>
-<title>Lexical Analysis With Flex, for Flex 2.6.2: Does flex support recursive pattern definitions?</title>
-
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-<link href="Why-do-flex-scanners-call-fileno-if-it-is-not-ANSI-compatible_003f.html#Why-do-flex-scanners-call-fileno-if-it-is-not-ANSI-compatible_003f" rel="prev" title="Why do flex scanners call fileno if it is not ANSI compatible?">
-<style type="text/css">
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-
-
-</head>
-
-<body lang="en">
-<a name="Does-flex-support-recursive-pattern-definitions_003f"></a>
-<div class="header">
-<p>
-Next: <a href="How-do-I-skip-huge-chunks-of-input-_0028tens-of-megabytes_0029-while-using-flex_003f.html#How-do-I-skip-huge-chunks-of-input-_0028tens-of-megabytes_0029-while-using-flex_003f" accesskey="n" rel="next">How do I skip huge chunks of input (tens of megabytes) while using flex?</a>, Previous: <a href="Why-do-flex-scanners-call-fileno-if-it-is-not-ANSI-compatible_003f.html#Why-do-flex-scanners-call-fileno-if-it-is-not-ANSI-compatible_003f" accesskey="p" rel="prev">Why do flex scanners call fileno if it is not ANSI compatible?</a>, Up: <a href="FAQ.html#FAQ" accesskey="u" rel="up">FAQ</a> &nbsp; [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Indices.html#Indices" title="Index" rel="index">Index</a>]</p>
-</div>
-<hr>
-<a name="Does-flex-support-recursive-pattern-definitions_003f-1"></a>
-<h3 class="unnumberedsec">Does flex support recursive pattern definitions?</h3>
-
-<p>e.g.,
-</p>
-<div class="example">
-<pre class="verbatim">%%
-block   &quot;{&quot;({block}|{statement})*&quot;}&quot;
-</pre></div>
-
-<p>No. You cannot have recursive definitions.  The pattern-matching power of
-regular expressions in general (and therefore flex scanners, too) is
-limited.  In particular, regular expressions cannot &ldquo;balance&rdquo; parentheses
-to an arbitrary degree.  For example, it&rsquo;s impossible to write a regular
-expression that matches all strings containing the same number of &rsquo;{&rsquo;s
-as &rsquo;}&rsquo;s.  For more powerful pattern matching, you need a parser, such
-as <cite>GNU bison</cite>.
-</p>
-
-
-
-</body>
-</html>

manual/Does-there-exist-a-_0022faster_0022-NDFA_002d_003eDFA-algorithm_003f.html

@@ -1,105 +0,0 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
-<html>
-<!-- 
-The flex manual is placed under the same licensing conditions as the
-rest of flex:
-
-Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2012
-The Flex Project.
-
-Copyright (C) 1990, 1997 The Regents of the University of California.
-All rights reserved.
-
-This code is derived from software contributed to Berkeley by
-Vern Paxson.
-
-The United States Government has rights in this work pursuant
-to contract no. DE-AC03-76SF00098 between the United States
-Department of Energy and the University of California.
-
-Redistribution and use in source and binary forms, with or without
-modification, are permitted provided that the following conditions
-are met:
-
-1. Redistributions of source code must retain the above copyright
-notice, this list of conditions and the following disclaimer.
-
-2. Redistributions in binary form must reproduce the above copyright
-notice, this list of conditions and the following disclaimer in the
-documentation and/or other materials provided with the distribution.
-
-Neither the name of the University nor the names of its contributors
-may be used to endorse or promote products derived from this software
-without specific prior written permission.
-
-THIS SOFTWARE IS PROVIDED "AS IS" AND WITHOUT ANY EXPRESS OR
-IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
-WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
-PURPOSE. -->
-<!-- Created by GNU Texinfo 6.1, http://www.gnu.org/software/texinfo/ -->
-<head>
-<title>Lexical Analysis With Flex, for Flex 2.6.2: Does there exist a &quot;faster&quot; NDFA-&gt;DFA algorithm?</title>
-
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-<link href="FAQ.html#FAQ" rel="up" title="FAQ">
-<link href="How-does-flex-compile-the-DFA-so-quickly_003f.html#How-does-flex-compile-the-DFA-so-quickly_003f" rel="next" title="How does flex compile the DFA so quickly?">
-<link href="Can-I-get-the-flex-manual-in-another-format_003f.html#Can-I-get-the-flex-manual-in-another-format_003f" rel="prev" title="Can I get the flex manual in another format?">
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-
-<body lang="en">
-<a name="Does-there-exist-a-_0022faster_0022-NDFA_002d_003eDFA-algorithm_003f"></a>
-<div class="header">
-<p>
-Next: <a href="How-does-flex-compile-the-DFA-so-quickly_003f.html#How-does-flex-compile-the-DFA-so-quickly_003f" accesskey="n" rel="next">How does flex compile the DFA so quickly?</a>, Previous: <a href="Can-I-get-the-flex-manual-in-another-format_003f.html#Can-I-get-the-flex-manual-in-another-format_003f" accesskey="p" rel="prev">Can I get the flex manual in another format?</a>, Up: <a href="FAQ.html#FAQ" accesskey="u" rel="up">FAQ</a> &nbsp; [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Indices.html#Indices" title="Index" rel="index">Index</a>]</p>
-</div>
-<hr>
-<a name="Does-there-exist-a-_0022faster_0022-NDFA_002d_003eDFA-algorithm_003f-1"></a>
-<h3 class="unnumberedsec">Does there exist a &quot;faster&quot; NDFA-&gt;DFA algorithm?</h3>
-
-<p>There&rsquo;s no way around the potential exponential running time - it
-can take you exponential time just to enumerate all of the DFA states.
-In practice, though, the running time is closer to linear, or sometimes
-quadratic.
-</p>
-
-
-
-</body>
-</html>

manual/EOF.html

@@ -1,153 +0,0 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
-<html>
-<!-- 
-The flex manual is placed under the same licensing conditions as the
-rest of flex:
-
-Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2012
-The Flex Project.
-
-Copyright (C) 1990, 1997 The Regents of the University of California.
-All rights reserved.
-
-This code is derived from software contributed to Berkeley by
-Vern Paxson.
-
-The United States Government has rights in this work pursuant
-to contract no. DE-AC03-76SF00098 between the United States
-Department of Energy and the University of California.
-
-Redistribution and use in source and binary forms, with or without
-modification, are permitted provided that the following conditions
-are met:
-
-1. Redistributions of source code must retain the above copyright
-notice, this list of conditions and the following disclaimer.
-
-2. Redistributions in binary form must reproduce the above copyright
-notice, this list of conditions and the following disclaimer in the
-documentation and/or other materials provided with the distribution.
-
-Neither the name of the University nor the names of its contributors
-may be used to endorse or promote products derived from this software
-without specific prior written permission.
-
-THIS SOFTWARE IS PROVIDED "AS IS" AND WITHOUT ANY EXPRESS OR
-IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
-WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
-PURPOSE. -->
-<!-- Created by GNU Texinfo 6.1, http://www.gnu.org/software/texinfo/ -->
-<head>
-<title>Lexical Analysis With Flex, for Flex 2.6.2: EOF</title>
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-
-<body lang="en">
-<a name="EOF"></a>
-<div class="header">
-<p>
-Next: <a href="Misc-Macros.html#Misc-Macros" accesskey="n" rel="next">Misc Macros</a>, Previous: <a href="Multiple-Input-Buffers.html#Multiple-Input-Buffers" accesskey="p" rel="prev">Multiple Input Buffers</a>, Up: <a href="index.html#Top" accesskey="u" rel="up">Top</a> &nbsp; [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Indices.html#Indices" title="Index" rel="index">Index</a>]</p>
-</div>
-<hr>
-<a name="End_002dof_002dFile-Rules"></a>
-<h2 class="chapter">12 End-of-File Rules</h2>
-
-<a name="index-EOF_002c-explanation"></a>
-<p>The special rule <code>&lt;&lt;EOF&gt;&gt;</code> indicates
-actions which are to be taken when an end-of-file is
-encountered and <code>yywrap()</code> returns non-zero (i.e., indicates
-no further files to process).  The action must finish
-by doing one of the following things:
-</p>
-<ul>
-<li> <a name="index-YY_005fNEW_005fFILE-_0028now-obsolete_0029"></a>
-assigning <samp>yyin</samp> to a new input file (in previous versions of
-<code>flex</code>, after doing the assignment you had to call the special
-action <code>YY_NEW_FILE</code>.  This is no longer necessary.)
-
-</li><li> executing a <code>return</code> statement;
-
-</li><li> executing the special <code>yyterminate()</code> action.
-
-</li><li> or, switching to a new buffer using <code>yy_switch_to_buffer()</code> as
-shown in the example above.
-</li></ul>
-
-<p>&lt;&lt;EOF&gt;&gt; rules may not be used with other patterns; they may only be
-qualified with a list of start conditions.  If an unqualified &lt;&lt;EOF&gt;&gt;
-rule is given, it applies to <em>all</em> start conditions which do not
-already have &lt;&lt;EOF&gt;&gt; actions.  To specify an &lt;&lt;EOF&gt;&gt; rule for only the
-initial start condition, use:
-</p>
-<div class="example">
-<pre class="verbatim">    &lt;INITIAL&gt;&lt;&lt;EOF&gt;&gt;
-</pre></div>
-
-<p>These rules are useful for catching things like unclosed comments.  An
-example:
-</p>
-<a name="index-_003c_003cEOF_003e_003e_002c-use-of"></a>
-<div class="example">
-<pre class="verbatim">    %x quote
-    %%
-
-    ...other rules for dealing with quotes...
-
-    &lt;quote&gt;&lt;&lt;EOF&gt;&gt;   {
-             error( &quot;unterminated quote&quot; );
-             yyterminate();
-             }
-   &lt;&lt;EOF&gt;&gt;  {
-             if ( *++filelist )
-                 yyin = fopen( *filelist, &quot;r&quot; );
-             else
-                yyterminate();
-             }
-</pre></div>
-
-
-
-
-</body>
-</html>

manual/ERASEME53.html

@@ -1,120 +0,0 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
-<html>
-<!-- 
-The flex manual is placed under the same licensing conditions as the
-rest of flex:
-
-Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2012
-The Flex Project.
-
-Copyright (C) 1990, 1997 The Regents of the University of California.
-All rights reserved.
-
-This code is derived from software contributed to Berkeley by
-Vern Paxson.
-
-The United States Government has rights in this work pursuant
-to contract no. DE-AC03-76SF00098 between the United States
-Department of Energy and the University of California.
-
-Redistribution and use in source and binary forms, with or without
-modification, are permitted provided that the following conditions
-are met:
-
-1. Redistributions of source code must retain the above copyright
-notice, this list of conditions and the following disclaimer.
-
-2. Redistributions in binary form must reproduce the above copyright
-notice, this list of conditions and the following disclaimer in the
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-
-Neither the name of the University nor the names of its contributors
-may be used to endorse or promote products derived from this software
-without specific prior written permission.
-
-THIS SOFTWARE IS PROVIDED "AS IS" AND WITHOUT ANY EXPRESS OR
-IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
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-PURPOSE. -->
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-<a name="ERASEME53"></a>
-<div class="header">
-<p>
-Next: <a href="I-need-to-scan-if_002dthen_002delse-blocks-and-while-loops.html#I-need-to-scan-if_002dthen_002delse-blocks-and-while-loops" accesskey="n" rel="next">I need to scan if-then-else blocks and while loops</a>, Previous: <a href="Is-flex-GNU-or-not_003f.html#Is-flex-GNU-or-not_003f" accesskey="p" rel="prev">Is flex GNU or not?</a>, Up: <a href="FAQ.html#FAQ" accesskey="u" rel="up">FAQ</a> &nbsp; [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Indices.html#Indices" title="Index" rel="index">Index</a>]</p>
-</div>
-<hr>
-<a name="ERASEME53-1"></a>
-<h3 class="unnumberedsec">ERASEME53</h3>
-<div class="example">
-<pre class="verbatim">To: tsv@cs.UManitoba.CA
-Subject: Re: Flex (reg)..
-In-reply-to: Your message of Thu, 06 Mar 1997 23:50:16 PST.
-Date: Thu, 06 Mar 1997 15:54:19 PST
-From: Vern Paxson &lt;vern&gt;
-
-&gt; [:alpha:] ([:alnum:] | \\_)*
-
-If your rule really has embedded blanks as shown above, then it won't
-work, as the first blank delimits the rule from the action.  (It wouldn't
-even compile ...)  You need instead:
-
-[:alpha:]([:alnum:]|\\_)*
-
-and that should work fine - there's no restriction on what can go inside
-of ()'s except for the trailing context operator, '/'.
-
-		Vern
-</pre></div>
-
-
-
-
-</body>
-</html>

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-rest of flex:
-
-Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2012
-The Flex Project.
-
-Copyright (C) 1990, 1997 The Regents of the University of California.
-All rights reserved.
-
-This code is derived from software contributed to Berkeley by
-Vern Paxson.
-
-The United States Government has rights in this work pursuant
-to contract no. DE-AC03-76SF00098 between the United States
-Department of Energy and the University of California.
-
-Redistribution and use in source and binary forms, with or without
-modification, are permitted provided that the following conditions
-are met:
-
-1. Redistributions of source code must retain the above copyright
-notice, this list of conditions and the following disclaimer.
-
-2. Redistributions in binary form must reproduce the above copyright
-notice, this list of conditions and the following disclaimer in the
-documentation and/or other materials provided with the distribution.
-
-Neither the name of the University nor the names of its contributors
-may be used to endorse or promote products derived from this software
-without specific prior written permission.
-
-THIS SOFTWARE IS PROVIDED "AS IS" AND WITHOUT ANY EXPRESS OR
-IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
-WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
-PURPOSE. -->
-<!-- Created by GNU Texinfo 6.1, http://www.gnu.org/software/texinfo/ -->
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-<div class="header">
-<p>
-Next: <a href="ERASEME56.html#ERASEME56" accesskey="n" rel="next">ERASEME56</a>, Previous: <a href="I-need-to-scan-if_002dthen_002delse-blocks-and-while-loops.html#I-need-to-scan-if_002dthen_002delse-blocks-and-while-loops" accesskey="p" rel="prev">I need to scan if-then-else blocks and while loops</a>, Up: <a href="FAQ.html#FAQ" accesskey="u" rel="up">FAQ</a> &nbsp; [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Indices.html#Indices" title="Index" rel="index">Index</a>]</p>
-</div>
-<hr>
-<a name="ERASEME55-1"></a>
-<h3 class="unnumberedsec">ERASEME55</h3>
-<div class="example">
-<pre class="verbatim">To: Colin Paul Adams &lt;colin@colina.demon.co.uk&gt;
-Subject: Re: Flex C++ classes and Bison
-In-reply-to: Your message of 09 Aug 1997 17:11:41 PDT.
-Date: Fri, 15 Aug 1997 10:48:19 PDT
-From: Vern Paxson &lt;vern&gt;
-
-&gt; #define YY_DECL   int yylex (YYSTYPE *lvalp, struct parser_control
-&gt; *parm)
-&gt;
-&gt; I have been trying  to get this to work as a C++ scanner, but it does
-&gt; not appear to be possible (warning that it matches no declarations in
-&gt; yyFlexLexer, or something like that).
-&gt;
-&gt; Is this supposed to be possible, or is it being worked on (I DID
-&gt; notice the comment that scanner classes are still experimental, so I'm
-&gt; not too hopeful)?
-
-What you need to do is derive a subclass from yyFlexLexer that provides
-the above yylex() method, squirrels away lvalp and parm into member
-variables, and then invokes yyFlexLexer::yylex() to do the regular scanning.
-
-		Vern
-</pre></div>
-
-
-
-
-</body>
-</html>