Compare commits

..
Author SHA1 Message Date
dgp e54d9d0c94 merge 8.7 2018-02-23 18:08:36 +00:00
dgp d92edae7e2 merge 8.7 2018-02-15 18:27:05 +00:00
dgp 3c9a74f58c merge 8.7 2018-02-14 15:00:17 +00:00
dgp 7cdfbbc10c merge 8.7 2018-02-09 20:57:30 +00:00
dgp a91a25c071 New bytecode instructions must be appended at the end of the instruction table. 2018-01-25 22:42:02 +00:00
dgp 4a6af27995 merge 8.7 2018-01-25 21:59:17 +00:00
dgp 7ae57a5517 Dup test names 2018-01-25 19:50:12 +00:00
dgp 554cff1f33 merge 8.7 2018-01-25 19:36:03 +00:00
andy 7738955f9a Simplify noComp for loops per mailing list suggestion from sebres [https://sourceforge.net/p/tcl/mailman/message/36065252/] 2017-10-06 00:01:21 +00:00
andy a5593081ca Merge trunk 2017-10-05 23:58:27 +00:00
andy 0fd41958c6 Simplify implementation of non-bytecoded [string replace] 2017-09-23 16:36:49 +00:00
andy b9d515abdb Update TIP number 2017-09-22 22:46:25 +00:00
dgp adead74139 [3ae1251264] Run only the tests that match the assumptions of the test design. 2017-09-21 14:35:53 +00:00
andy 09faa1aab9 Include $noComp flag in string test names 2017-09-20 17:25:39 +00:00
andy 2f50095de1 Alternate, equivalent way of running bytecoded tests 2017-09-20 05:11:37 +00:00
andy 38f00ec3c8 Correct string tests to exercise both bytecoded and non-bytecoded implementations. string-29.6 now fails. 2017-09-20 05:08:10 +00:00
andy 28b052a00d Improve documentation of [string insert] with respect to end-relative indexing 2017-09-19 06:21:42 +00:00
dgp 94dd110564 merge trunk 2017-09-18 13:19:00 +00:00
andy 191ef4be11 Document [string insert] 2017-09-18 03:11:05 +00:00
andy 5945daaae4 Document Tcl_ReplaceObj() 2017-09-18 03:02:12 +00:00
andy 1befabd977 Rename Tcl_StringReplace() to Tcl_ReplaceObj() for consistency with other public string object functions, most notably Tcl_ConcatObj() 2017-09-18 01:38:31 +00:00
andy e497f07f20 Improve comments 2017-09-18 01:29:58 +00:00
andy 8333560e5c Juggle [string insert] bytecode compilation logic 2017-09-18 01:19:12 +00:00
andy 6aceb254f3 Rearrange bytecoded [string replace] logic, reinstate [string replace]/[string insert] result tracing 2017-09-18 01:16:03 +00:00
andy 70ee4f5087 Use Tcl_StringReplace() to implement core of bytecoded [string replace] 2017-09-18 01:11:08 +00:00
andy 11ca91d9e4 Update stringComp.test for new [string insert] command 2017-09-18 00:48:46 +00:00
andy 0d02f56968 stringComp.test and maybe many other tests may need to be reconsidered so that both bytecoded and non-bytecoded code paths are exercised 2017-09-18 00:39:56 +00:00
andy d3499984e0 Correct terminology 2017-09-18 00:32:21 +00:00
andy cdd6d9c901 Implement bytecoded [string insert] 2017-09-18 00:32:06 +00:00
andy 98eac1c578 Correct bytecode index comments 2017-09-17 21:09:54 +00:00
andy fbbfbdeff8 Improve comment to describe return value 2017-09-17 21:09:11 +00:00
andy 94e0ec332e Merge trunk 2017-09-16 19:50:12 +00:00
andy bb3b280cf3 Merge trunk 2017-08-30 15:22:10 +00:00
andy 535909bc9f Rename TclStringReplace() to Tcl_StringReplace() and add to the stubs table. Documentation not yet started. 2017-08-30 15:20:17 +00:00
andy 4423757d23 Add test cleanup 2017-08-20 20:11:43 +00:00
andy 1e913ed0ab Add tests to exercise almost every line of TclStringReplace(). The one line not being exercised is the "return NULL" on TclStringCatObjv() failure. Coverage checked in an ad-hoc way by putting a breakpoint at the start of every basic block, then confirming each breakpoint is hit at least once when running string.test. 2017-08-20 19:57:43 +00:00
andy f9d45ca66e Tweak string index boundary conditionals for tiny performance improvement and to make existing tests cover more code paths 2017-08-20 19:55:28 +00:00
andy 935e4615a9 Add non-bytecoded [string replace] tests to exercise new TclStringReplace() function 2017-08-20 18:13:33 +00:00
andy c8c14244d4 Add string-14.18 to test that [string replace] with last<first does not insert a string, even though we might wish that it did, to be in compliance with the documented behavior. Correct non-bytecoded [string replace] accordingly. 2017-08-20 03:45:19 +00:00
andy 31dec40c9b Reimplement NON-BYTECODED [string replace] in terms of new TclStringReplace() function 2017-08-20 03:21:27 +00:00
andy 4fcd0cb3c2 Correct NULL dereference, and optimize short-circuit logical operation 2017-08-20 03:20:45 +00:00
andy c1f053321e Work toward dgp's suggestion that the underlying engine handle both [string insert] and [string replace]. Ref: [https://sourceforge.net/p/tcl/mailman/message/36002472/] 2017-08-20 02:44:56 +00:00
andy 657e43aaa9 Correct bug in getting second Unicode character sequence 2017-08-17 18:32:12 +00:00
andy 166fce6267 Clip (don't reject) out-of-bounds indexes, per sebres's suggestion and to match [linsert] 2017-08-17 18:15:32 +00:00
andy 9614235c9d Work around [3397978fff] 2017-08-17 18:14:24 +00:00
andy 499a6f4da8 Backout [b163c4f423]: Command ensembles indeed do affect argument reference counts, see [3397978fff] 2017-08-17 17:29:19 +00:00
andy 72490b5f39 Test code to investigate command ensemble argument reference counts 2017-08-16 15:14:36 +00:00
andy 651a35fc69 Fix typo 2017-08-16 15:14:09 +00:00
andy 576adc0559 Write some test cases 2017-08-15 08:25:52 +00:00
andy 602dbc490d Correct bug in shared pure byte array case 2017-08-15 08:23:40 +00:00
andy ad835ed885 Remove repeated code 2017-08-15 08:04:36 +00:00
andy af2cc1bccb Update existing tests to accommodate new [string insert] command 2017-08-15 08:04:19 +00:00
andy c6308250b1 Begin implementation of [string insert] 2017-08-15 07:50:27 +00:00
805 changed files with 58854 additions and 57355 deletions
+1 -2
View File
@@ -24,11 +24,9 @@ libtommath/bn.ilg
libtommath/bn.ind
libtommath/pretty.build
libtommath/tommath.src
libtommath/*.log
libtommath/*.pdf
libtommath/*.pl
libtommath/*.sh
libtommath/doc/*
libtommath/tombc/*
libtommath/pre_gen/*
libtommath/pics/*
@@ -46,5 +44,6 @@ unix/pkgs/*
win/Debug*
win/Release*
win/pkgs/*
win/coffbase.txt
win/tcl.hpj
win/nmhlp-out.txt
-39
View File
@@ -1,39 +0,0 @@
# Set the default behavior, in case people don't have core.autocrlf set.
* eol=lf
* text=auto
# Explicitly declare text files you want to always be normalized and converted
# to native line endings on checkout.
*.3 text
*.c text
*.css text
*.enc text
*.h text
*.htm text
*.html text
*.java text
*.js text
*.json text
*.n text
*.svg text
*.ts text
*.tcl text
*.test text
# Declare files that will always have CRLF line endings on checkout.
*.bat eol=crlf
*.sln eol=crlf
*.vc eol=crlf
# Denote all files that are truly binary and should not be modified.
*.a binary
*.dll binary
*.exe binary
*.gif binary
*.gz binary
*.jpg binary
*.lib binary
*.pdf binary
*.png binary
*.xlsx binary
*.zip binary
-50
View File
@@ -1,50 +0,0 @@
*.a
*.dll
*.dylib
*.exe
*.exp
*.lib
*.o
*.obj
*.pdb
*.res
*.sl
*.so
*/Makefile
*/config.cache
*/config.log
*/config.status
*/tclConfig.sh
*/tclsh*
*/tcltest*
*/versions.vc
*/version.vc
html
libtommath/bn.ilg
libtommath/bn.ind
libtommath/pretty.build
libtommath/tommath.src
libtommath/*.log
libtommath/*.pdf
libtommath/*.pl
libtommath/*.sh
libtommath/doc/*
libtommath/tombc/*
libtommath/pre_gen/*
libtommath/pics/*
libtommath/mtest/*
libtommath/logs/*
libtommath/etc/*
libtommath/demo/*
libtommath/*.out
libtommath/*.tex
unix/autoMkindex.tcl
unix/dltest.marker
unix/tcl.pc
unix/tclIndex
unix/pkgs/*
win/Debug*
win/Release*
win/pkgs/*
win/tcl.hpj
win/nmhlp-out.txt
+1 -1
View File
@@ -1,6 +1,6 @@
<?xml version="1.0" encoding="UTF-8"?>
<projectDescription>
<name>tcl8.6</name>
<name>tcl8</name>
<comment></comment>
<projects>
</projects>
-324
View File
@@ -1,324 +0,0 @@
sudo: false
language: c
matrix:
include:
# Testing on Linux with various compilers
- name: "Linux/GCC/Shared"
os: linux
dist: xenial
compiler: gcc
env:
- BUILD_DIR=unix
- name: "Linux/GCC/Static"
os: linux
dist: xenial
compiler: gcc
env:
- CFGOPT="--disable-shared"
- BUILD_DIR=unix
- name: "Linux/GCC/Debug"
os: linux
dist: xenial
compiler: gcc
env:
- BUILD_DIR=unix
- CFGOPT="--enable-symbols"
# Older versions of GCC...
- name: "Linux/GCC 7/Shared"
os: linux
dist: xenial
compiler: gcc-7
addons:
apt:
sources:
- ubuntu-toolchain-r-test
packages:
- g++-7
env:
- BUILD_DIR=unix
- name: "Linux/GCC 6/Shared"
os: linux
dist: xenial
compiler: gcc-6
addons:
apt:
sources:
- ubuntu-toolchain-r-test
packages:
- g++-6
env:
- BUILD_DIR=unix
- name: "Linux/GCC 5/Shared"
os: linux
dist: xenial
compiler: gcc-5
addons:
apt:
sources:
- ubuntu-toolchain-r-test
packages:
- g++-5
env:
- BUILD_DIR=unix
- name: "Linux/GCC 4.9/Shared"
os: linux
dist: xenial
compiler: gcc-4.9
addons:
apt:
sources:
- ubuntu-toolchain-r-test
packages:
- g++-4.9
env:
- BUILD_DIR=unix
# Clang
- name: "Linux/Clang/Shared"
os: linux
dist: xenial
compiler: clang
env:
- BUILD_DIR=unix
- name: "Linux/Clang/Static"
os: linux
dist: xenial
compiler: clang
env:
- CFGOPT="--disable-shared"
- BUILD_DIR=unix
- name: "Linux/Clang/Debug"
os: linux
dist: xenial
compiler: clang
env:
- BUILD_DIR=unix
- CFGOPT="--enable-symbols"
# Testing on Mac, various styles
- name: "macOS/Xcode 11/Shared/Unix-like"
os: osx
osx_image: xcode11
env:
- BUILD_DIR=unix
- name: "macOS/Xcode 11/Shared"
os: osx
osx_image: xcode11
env:
- BUILD_DIR=macosx
install: []
script: &mactest
- make all
# The styles=develop avoids some weird problems on OSX
- make test styles=develop
- name: "macOS/Xcode 10/Shared"
os: osx
osx_image: xcode10.3
env:
- BUILD_DIR=macosx
install: []
script: *mactest
- name: "macOS/Xcode 9/Shared"
os: osx
osx_image: xcode9
env:
- BUILD_DIR=macosx
install: []
script: *mactest
- name: "macOS/Xcode 8/Shared"
os: osx
osx_image: xcode8
env:
- BUILD_DIR=macosx
install: []
script: *mactest
# Test with mingw-w64 cross-compile
# Doesn't run tests because wine is only an imperfect Windows emulation
- name: "Linux-cross-Windows/GCC/Shared/no test"
os: linux
dist: xenial
compiler: x86_64-w64-mingw32-gcc
addons: &mingw64
apt:
packages:
- gcc-mingw-w64-base
- binutils-mingw-w64-x86-64
- gcc-mingw-w64-x86-64
- gcc-mingw-w64
- wine
env:
- BUILD_DIR=win
- CFGOPT="--host=x86_64-w64-mingw32 --enable-64bit"
script: &crosstest
- make all tcltest
# Include a high visibility marker that tests are skipped outright
- >
echo "`tput setaf 3`SKIPPED TEST: CROSS COMPILING`tput sgr0`"
- name: "Linux-cross-Windows/GCC/Static/no test"
os: linux
dist: xenial
compiler: x86_64-w64-mingw32-gcc
addons: *mingw64
env:
- BUILD_DIR=win
- CFGOPT="--host=x86_64-w64-mingw32 --enable-64bit --disable-shared"
script: *crosstest
- name: "Linux-cross-Windows/GCC/Debug/no test"
os: linux
dist: xenial
compiler: x86_64-w64-mingw32-gcc
addons: *mingw64
env:
- BUILD_DIR=win
- CFGOPT="--host=x86_64-w64-mingw32 --enable-64bit --enable-symbols"
script: *crosstest
# Test with mingw-w64 (32 bit) cross-compile
# Doesn't run tests because wine is only an imperfect Windows emulation
- name: "Linux-cross-Windows-32/GCC/Shared/no test"
os: linux
dist: xenial
compiler: i686-w64-mingw32-gcc
addons: &mingw32
apt:
packages:
- gcc-mingw-w64-base
- binutils-mingw-w64-i686
- gcc-mingw-w64-i686
- gcc-mingw-w64
- gcc-multilib
- wine
env:
- BUILD_DIR=win
- CFGOPT="--host=i686-w64-mingw32"
script: *crosstest
- name: "Linux-cross-Windows-32/GCC/Static/no test"
os: linux
dist: xenial
compiler: i686-w64-mingw32-gcc
addons: *mingw32
env:
- BUILD_DIR=win
- CFGOPT="--host=i686-w64-mingw32 --disable-shared"
script: *crosstest
- name: "Linux-cross-Windows-32/GCC/Debug/no test"
os: linux
dist: xenial
compiler: i686-w64-mingw32-gcc
addons: *mingw32
env:
- BUILD_DIR=win
- CFGOPT="--host=i686-w64-mingw32 --enable-symbols"
script: *crosstest
# Test on Windows with MSVC native
- name: "Windows/MSVC/Shared"
os: windows
compiler: cl
env: &vcenv
- BUILD_DIR=win
- VCDIR="/C/Program Files (x86)/Microsoft Visual Studio/2017/BuildTools/VC/Auxiliary/Build"
before_install: &vcpreinst
- PATH="$PATH:$VCDIR"
- cd ${BUILD_DIR}
install: []
script:
- cmd.exe /C 'vcvarsall.bat x64 && nmake OPTS=threads -f makefile.vc all tcltest'
- cmd.exe /C 'vcvarsall.bat x64 && nmake OPTS=threads -f makefile.vc test'
- name: "Windows/MSVC/Static"
os: windows
compiler: cl
env: *vcenv
before_install: *vcpreinst
install: []
script:
- cmd.exe /C 'vcvarsall.bat x64 && nmake OPTS=static,msvcrt,threads -f makefile.vc all tcltest'
- cmd.exe /C 'vcvarsall.bat x64 && nmake OPTS=static,msvcrt,threads -f makefile.vc test'
- name: "Windows/MSVC/Debug"
os: windows
compiler: cl
env: *vcenv
before_install: *vcpreinst
install: []
script:
- cmd.exe /C 'vcvarsall.bat x64 && nmake OPTS=symbols,msvcrt,threads -f makefile.vc all tcltest'
- cmd.exe /C 'vcvarsall.bat x64 && nmake OPTS=symbols,msvcrt,threads -f makefile.vc test'
# Test on Windows with MSVC native (32-bit)
- name: "Windows/MSVC-x86/Shared"
os: windows
compiler: cl
env: *vcenv
before_install: *vcpreinst
install: []
script:
- cmd.exe /C 'vcvarsall.bat x86 && nmake OPTS=threads -f makefile.vc all tcltest'
- cmd.exe /C 'vcvarsall.bat x86 && nmake OPTS=threads -f makefile.vc test'
- name: "Windows/MSVC-x86/Static"
os: windows
compiler: cl
env: *vcenv
before_install: *vcpreinst
install: []
script:
- cmd.exe /C 'vcvarsall.bat x86 && nmake OPTS=static,msvcrt,threads -f makefile.vc all tcltest'
- cmd.exe /C 'vcvarsall.bat x86 && nmake OPTS=static,msvcrt,threads -f makefile.vc test'
- name: "Windows/MSVC-x86/Debug"
os: windows
compiler: cl
env: *vcenv
before_install: *vcpreinst
install: []
script:
- cmd.exe /C 'vcvarsall.bat x86 && nmake OPTS=symbols,msvcrt,threads -f makefile.vc all tcltest'
- cmd.exe /C 'vcvarsall.bat x86 && nmake OPTS=symbols,msvcrt,threads -f makefile.vc test'
# Test on Windows with GCC native
- name: "Windows/GCC/Shared"
os: windows
compiler: gcc
env:
- BUILD_DIR=win
- CFGOPT="--enable-64bit"
before_install: &makepreinst
- choco install make
- cd ${BUILD_DIR}
- name: "Windows/GCC/Static"
os: windows
compiler: gcc
env:
- BUILD_DIR=win
- CFGOPT="--enable-64bit --disable-shared"
before_install: *makepreinst
- name: "Windows/GCC/Debug"
os: windows
compiler: gcc
env:
- BUILD_DIR=win
- CFGOPT="--enable-64bit --enable-symbols"
before_install: *makepreinst
# Test on Windows with GCC native (32-bit)
- name: "Windows/GCC-x86/Shared"
os: windows
compiler: gcc
env:
- BUILD_DIR=win
before_install: *makepreinst
- name: "Windows/GCC-x86/Static"
os: windows
compiler: gcc
env:
- BUILD_DIR=win
- CFGOPT="--disable-shared"
before_install: *makepreinst
- name: "Windows/GCC-x86/Debug"
os: windows
compiler: gcc
env:
- BUILD_DIR=win
- CFGOPT="--enable-symbols"
before_install: *makepreinst
before_install:
- cd ${BUILD_DIR}
install:
- ./configure ${CFGOPT} --prefix=$HOME || (cat config.log && exit 1)
before_script:
- export ERROR_ON_FAILURES=1
script:
- make all tcltest
- make test
+1 -1
View File
@@ -1,6 +1,6 @@
A NOTE ON THE CHANGELOG:
Starting in early 2011, Tcl source code has been under the management of
fossil, hosted at https://core.tcl-lang.org/tcl/ . Fossil presents a "Timeline"
fossil, hosted at http://core.tcl.tk/tcl/ . Fossil presents a "Timeline"
view of changes made that is superior in every way to a hand edited log file.
Because of this, many Tcl developers are now out of the habit of maintaining
this log file. You may still find useful things in it, but the Timeline is
+185
View File
@@ -0,0 +1,185 @@
README: Tcl
This is the Tcl 8.7a2 source distribution.
http://sourceforge.net/projects/tcl/files/Tcl/
You can get any source release of Tcl from the URL above.
Contents
--------
1. Introduction
2. Documentation
3. Compiling and installing Tcl
4. Development tools
5. Tcl newsgroup
6. The Tcler's Wiki
7. Mailing lists
8. Support and Training
9. Tracking Development
10. Thank You
1. Introduction
---------------
Tcl provides a powerful platform for creating integration applications that
tie together diverse applications, protocols, devices, and frameworks.
When paired with the Tk toolkit, Tcl provides the fastest and most powerful
way to create GUI applications that run on PCs, Unix, and Mac OS X.
Tcl can also be used for a variety of web-related tasks and for creating
powerful command languages for applications.
Tcl is maintained, enhanced, and distributed freely by the Tcl community.
Source code development and tracking of bug reports and feature requests
takes place at:
http://core.tcl.tk/
Tcl/Tk release and mailing list services are hosted by SourceForge:
http://sourceforge.net/projects/tcl/
with the Tcl Developer Xchange hosted at:
http://www.tcl.tk/
Tcl is a freely available open source package. You can do virtually
anything you like with it, such as modifying it, redistributing it,
and selling it either in whole or in part. See the file
"license.terms" for complete information.
2. Documentation
----------------
Extensive documentation is available at our website.
The home page for this release, including new features, is
http://www.tcl.tk/software/tcltk/8.7.html
Detailed release notes can be found at the file distributions page
by clicking on the relevant version.
http://sourceforge.net/projects/tcl/files/Tcl/
Information about Tcl itself can be found at
http://www.tcl.tk/about/
There have been many Tcl books on the market. Many are mentioned in the Wiki:
http://wiki.tcl.tk/_/ref?N=25206
To view the complete set of reference manual entries for Tcl 8.7 online,
visit the URL:
http://www.tcl.tk/man/tcl8.7/
2a. Unix Documentation
----------------------
The "doc" subdirectory in this release contains a complete set of
reference manual entries for Tcl. Files with extension ".1" are for
programs (for example, tclsh.1); files with extension ".3" are for C
library procedures; and files with extension ".n" describe Tcl
commands. The file "doc/Tcl.n" gives a quick summary of the Tcl
language syntax. To print any of the man pages on Unix, cd to the
"doc" directory and invoke your favorite variant of troff using the
normal -man macros, for example
ditroff -man Tcl.n
to print Tcl.n. If Tcl has been installed correctly and your "man" program
supports it, you should be able to access the Tcl manual entries using the
normal "man" mechanisms, such as
man Tcl
2b. Windows Documentation
-------------------------
The "doc" subdirectory in this release contains a complete set of Windows
help files for Tcl. Once you install this Tcl release, a shortcut to the
Windows help Tcl documentation will appear in the "Start" menu:
Start | Programs | Tcl | Tcl Help
3. Compiling and installing Tcl
-------------------------------
There are brief notes in the unix/README, win/README, and macosx/README about
compiling on these different platforms. There is additional information
about building Tcl from sources at
http://www.tcl.tk/doc/howto/compile.html
4. Development tools
---------------------------
ActiveState produces a high quality set of commercial quality development
tools that is available to accelerate your Tcl application development.
Tcl Dev Kit builds on the earlier TclPro toolset and provides a debugger,
static code checker, single-file wrapping utility, bytecode compiler and
more. More information can be found at
http://www.ActiveState.com/Tcl
5. Tcl newsgroup
----------------
There is a USENET news group, "comp.lang.tcl", intended for the exchange of
information about Tcl, Tk, and related applications. The newsgroup is a
great place to ask general information questions. For bug reports, please
see the "Support and bug fixes" section below.
6. Tcl'ers Wiki
---------------
A Wiki-based open community site covering all aspects of Tcl/Tk is at:
http://wiki.tcl.tk/
It is dedicated to the Tcl programming language and its extensions. A
wealth of useful information can be found there. It contains code
snippets, references to papers, books, and FAQs, as well as pointers to
development tools, extensions, and applications. You can also recommend
additional URLs by editing the wiki yourself.
7. Mailing lists
----------------
Several mailing lists are hosted at SourceForge to discuss development or
use issues (like Macintosh and Windows topics). For more information and
to subscribe, visit:
http://sourceforge.net/projects/tcl/
and go to the Mailing Lists page.
8. Support and Training
------------------------
We are very interested in receiving bug reports, patches, and suggestions
for improvements. We prefer that you send this information to us as
tickets entered into our tracker at:
http://core.tcl.tk/tcl/reportlist
We will log and follow-up on each bug, although we cannot promise a
specific turn-around time. Enhancements may take longer and may not happen
at all unless there is widespread support for them (we're trying to
slow the rate at which Tcl/Tk turns into a kitchen sink). It's very
difficult to make incompatible changes to Tcl/Tk at this point, due to
the size of the installed base.
The Tcl community is too large for us to provide much individual support
for users. If you need help we suggest that you post questions to
comp.lang.tcl. We read the newsgroup and will attempt to answer esoteric
questions for which no one else is likely to know the answer. In addition,
see the following Web site for links to other organizations that offer
Tcl/Tk training:
http://wiki.tcl.tk/training
9. Tracking Development
-----------------------
Tcl is developed in public. To keep an eye on how Tcl is changing, see
http://core.tcl.tk/
10. Thank You
-------------
We'd like to express our thanks to the Tcl community for all the
helpful suggestions, bug reports, and patches we have received.
Tcl/Tk has improved vastly and will continue to do so with your help.
-148
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@@ -1,148 +0,0 @@
# README: Tcl
This is the **Tcl 8.6.9** source distribution.
You can get any source release of Tcl from [our distribution
site](https://sourceforge.net/projects/tcl/files/Tcl/).
[![Build Status](https://travis-ci.org/tcltk/tcl.svg?branch=core-8-6-branch)](https://travis-ci.org/tcltk/tcl)
## Contents
1. [Introduction](#intro)
2. [Documentation](#doc)
3. [Compiling and installing Tcl](#build)
4. [Development tools](#devtools)
5. [Tcl newsgroup](#complangtcl)
6. [The Tcler's Wiki](#wiki)
7. [Mailing lists](#email)
8. [Support and Training](#support)
9. [Tracking Development](#watch)
10. [Thank You](#thanks)
## <a id="intro">1.</a> Introduction
Tcl provides a powerful platform for creating integration applications that
tie together diverse applications, protocols, devices, and frameworks.
When paired with the Tk toolkit, Tcl provides the fastest and most powerful
way to create GUI applications that run on PCs, Unix, and Mac OS X.
Tcl can also be used for a variety of web-related tasks and for creating
powerful command languages for applications.
Tcl is maintained, enhanced, and distributed freely by the Tcl community.
Source code development and tracking of bug reports and feature requests
takes place at [core.tcl-lang.org](https://core.tcl-lang.org/).
Tcl/Tk release and mailing list services are [hosted by
SourceForge](https://sourceforge.net/projects/tcl/)
with the Tcl Developer Xchange hosted at
[www.tcl-lang.org](https://www.tcl-lang.org).
Tcl is a freely available open source package. You can do virtually
anything you like with it, such as modifying it, redistributing it,
and selling it either in whole or in part. See the file
`license.terms` for complete information.
## <a id="doc">2.</a> Documentation
Extensive documentation is available at our website.
The home page for this release, including new features, is
[here](https://www.tcl.tk/software/tcltk/8.6.html).
Detailed release notes can be found at the
[file distributions page](https://sourceforge.net/projects/tcl/files/Tcl/)
by clicking on the relevant version.
Information about Tcl itself can be found at the [Developer
Xchange](https://www.tcl-lang.org/about/).
There have been many Tcl books on the market. Many are mentioned in
[the Wiki](https://wiki.tcl-lang.org/_/ref?N=25206).
The complete set of reference manual entries for Tcl 8.6 is [online,
here](https://www.tcl-lang.org/man/tcl8.6/).
### <a id="doc.unix">2a.</a> Unix Documentation
The `doc` subdirectory in this release contains a complete set of
reference manual entries for Tcl. Files with extension "`.1`" are for
programs (for example, `tclsh.1`); files with extension "`.3`" are for C
library procedures; and files with extension "`.n`" describe Tcl
commands. The file "`doc/Tcl.n`" gives a quick summary of the Tcl
language syntax. To print any of the man pages on Unix, cd to the
"doc" directory and invoke your favorite variant of troff using the
normal -man macros, for example
groff -man -Tpdf Tcl.n >output.pdf
to print Tcl.n to PDF. If Tcl has been installed correctly and your "man" program
supports it, you should be able to access the Tcl manual entries using the
normal "man" mechanisms, such as
man Tcl
### <a id="doc.win">2b.</a> Windows Documentation
The "doc" subdirectory in this release contains a complete set of Windows
help files for Tcl. Once you install this Tcl release, a shortcut to the
Windows help Tcl documentation will appear in the "Start" menu:
Start | Programs | Tcl | Tcl Help
## <a id="build">3.</a> Compiling and installing Tcl
There are brief notes in the `unix/README`, `win/README`, and `macosx/README`
about compiling on these different platforms. There is additional information
about building Tcl from sources
[online](https://www.tcl-lang.org/doc/howto/compile.html).
## <a id="devtools">4.</a> Development tools
ActiveState produces a high quality set of commercial quality development
tools that is available to accelerate your Tcl application development.
Tcl Dev Kit builds on the earlier TclPro toolset and provides a debugger,
static code checker, single-file wrapping utility, bytecode compiler and
more. More information can be found at
http://www.ActiveState.com/Tcl
## <a id="complangtcl">5.</a> Tcl newsgroup
There is a USENET news group, "`comp.lang.tcl`", intended for the exchange of
information about Tcl, Tk, and related applications. The newsgroup is a
great place to ask general information questions. For bug reports, please
see the "Support and bug fixes" section below.
## <a id="wiki">6.</a> Tcl'ers Wiki
There is a [wiki-based open community site](https://wiki.tcl-lang.org/)
covering all aspects of Tcl/Tk.
It is dedicated to the Tcl programming language and its extensions. A
wealth of useful information can be found there. It contains code
snippets, references to papers, books, and FAQs, as well as pointers to
development tools, extensions, and applications. You can also recommend
additional URLs by editing the wiki yourself.
## <a id="email">7.</a> Mailing lists
Several mailing lists are hosted at SourceForge to discuss development or use
issues (like Macintosh and Windows topics). For more information and to
subscribe, visit [here](https://sourceforge.net/projects/tcl/) and go to the
Mailing Lists page.
## <a id="support">8.</a> Support and Training
We are very interested in receiving bug reports, patches, and suggestions for
improvements. We prefer that you send this information to us as tickets
entered into [our issue tracker](https://core.tcl-lang.org/tcl/reportlist).
We will log and follow-up on each bug, although we cannot promise a
specific turn-around time. Enhancements may take longer and may not happen
at all unless there is widespread support for them (we're trying to
slow the rate at which Tcl/Tk turns into a kitchen sink). It's very
difficult to make incompatible changes to Tcl/Tk at this point, due to
the size of the installed base.
The Tcl community is too large for us to provide much individual support for
users. If you need help we suggest that you post questions to `comp.lang.tcl`
or ask a question on [Stack
Overflow](https://stackoverflow.com/questions/tagged/tcl). We read the
newsgroup and will attempt to answer esoteric questions for which no one else
is likely to know the answer. In addition, see the wiki for [links to other
organizations](https://wiki.tcl-lang.org/training) that offer Tcl/Tk training.
## <a id="watch">9.</a> Tracking Development
Tcl is developed in public. You can keep an eye on how Tcl is changing at
[core.tcl-lang.org](https://core.tcl-lang.org/).
## <a id="thanks">10.</a> Thank You
We'd like to express our thanks to the Tcl community for all the
helpful suggestions, bug reports, and patches we have received.
Tcl/Tk has improved vastly and will continue to do so with your help.
+27 -42
View File
@@ -8831,66 +8831,51 @@ improvements to regexp engine from Postgres (lane,porter,fellows,seltenreich)
--- Released 8.6.8, December 22, 2017 --- http://core.tcl.tk/tcl/ for details
2018-02-11 (enhance) stop blocking conversion of object to/from class (coulter)
Changes to 8.7a1 include all changes to the 8.6 line through 8.6.7,
plus the following, which focuses on the high-level feature changes
in this changeset (new minor version) rather than bug fixes:
2018-02-12 (enhance) NR-enable [package require] (coulter)
2016-03-17 (bug)[0b8c38] socket accept callbacks always in global ns (porter)
*** POTENTIAL INCOMPATIBILITY ***
2018-02-14 (bug)[9fd5c6] crash in object deletion, test oo-11.5 (coulter)
2016-07-01 Hack accommodations for legacy Itcl 3 disabled (porter)
2018-02-14 (bug)[3c32a3] crash deleting object with class mixed in (coulter)
2016-07-12 Make TCL_HASH_TYPE build-time configurable (nijtmans)
2018-02-15 (platform) stop using -lieee, removed from glibc-2.27 (porter)
***POTENTIAL INCOMPATIBILITY for math programs that embed Tcl***
2016-07-19 (bug)[0363f0] Partial array search ID reform (porter)
2018-02-23 (bug)[8e6a9a] bad binary [string match], test string-11.55 (porter)
2016-07-19 (feature removed) Tcl_ObjType "array search" unregistered (porter)
*** POTENTIAL INCOMPATIBILITY for Tcl_GetObjType("array search") ***
2018-03-05 (bug)[1873ea] repair multi-thread std channel init (sebres)
2016-10-04 Server socket on port 0 chooses port supporting IPv4 * IPv6 (max)
2018-03-09 (bug)[db36fa] broken bytecode for index values (porter)
2016-11-25 [array named -regexp] supports backrefs (goth)
2018-03-13 (bug) broken compiled [string replace], test string-14.19 (porter)
2017-01-04 (TIP 456) New routine Tcl_OpenTcpServerEx() (limeboy)
2018-03-14 (bug) [string trim*] engine crashed on invalid UTF (sebres)
2017-01-04 (TIP 459) New subcommand [package files] (nijtmans)
2018-04-17 (bug) missing trace in compiled [array set], test var-20.11 (porter)
2017-01-16 threaded allocator initialization repair (vasiljevic,nijtmans)
2018-04-22 (bug)[46a241] crash in unset array with search, var-13.[23] (goth)
2017-01-30 Add to Win shell builtins: assoc ftype move (ashok)
2018-04-30 (bug)[27b682] race made [file delete] raise "no such file" (sebres)
2017-03-31 TCL_MEM_DEBUG facilities better support 64-bit memory (nijtmans)
2018-06-04 (bug)[925643] 32/64 cleanup of filesystem DIR operations (sebres)
2017-04-13 \u escaped content in msg files converted to true utf-8 (nijtmans)
2018-06-18 (bug) leaks in TclSetEnv and env cache (coulter)
2017-05-18 (TIP 458) New epoll or kqueue notifiers are default (alborboz)
2018-06-24 (bug)[3592747] [yieldto] dying namespace, tailcall-14.1 (coulter)
2017-05-31 Purge build support for SunOS-4.* (stu)
2018-07-09 (bug)[270f78] race in [file mkdir] (sebres)
2017-06-22 (TIP 463) New option [regsub ... -command ...] (fellows)
2018-07-12 (bug)[3f7af0] [file delete] raised "permission denied" (sebres)
2017-06-22 (TIP 470) Tcl_GetDefineContextObject();[oo::define [self]] (fellows)
=> TclOO 1.2.0
2018-07-26 (bug)[d051b7] overflow crash in [format] (sebres)
2017-06-23 (TIP 472) Support 0d as prefix of decimal numbers (iyer,griffin)
2018-08-29 revised quoting of [exec] args in generated command line (sebres)
***POTENTIAL INCOMPATIBILITY***
2017-08-31 (bug)[2a9465] http state 100 continue handling broken (oehlmann)
2018-09-20 HTTP Keep-Alive with pipelined requests (nash)
=> http 2.9.0
2017-09-02 (bug)[0e4d88] replace command, delete trace kills namespace (porter)
2018-09-27 (new)[TIP 505] [lreplace] accepts all out of range indices (porter)
2018-10-04 (bug) Prevent crash from NULL keyName (nijtmans)
=> registry 1.3.3
2018-10-26 (enhance) advance dde version (nijtmans)
=> dde 1.4.1
2018-10-27 tzdata updated to Olson's tzdata2018g (jima)
2018-10-29 Update tcltest package for Travis support (fellows)
=> tcltest 2.5.0
2018-11-09 (bug)[35a8f1] overlong string length of some lists (owens)
2018-11-16 (bug)[00d04c] Repair [binary encode base64] (sebres)
- Released 8.6.9, November 16, 2018 - details at http://core.tcl-lang.org/tcl/ -
--- Released 8.7a1, September 8, 2017 --- http://core.tcl.tk/tcl/ for details
+36
View File
@@ -0,0 +1,36 @@
/*
* fixstrtod.c --
*
* Source code for the "fixstrtod" procedure. This procedure is
* used in place of strtod under Solaris 2.4, in order to fix
* a bug where the "end" pointer gets set incorrectly.
*
* Copyright (c) 1995 Sun Microsystems, Inc.
*
* See the file "license.terms" for information on usage and redistribution
* of this file, and for a DISCLAIMER OF ALL WARRANTIES.
*/
#include <stdio.h>
#undef strtod
/*
* Declare strtod explicitly rather than including stdlib.h, since in
* somes systems (e.g. SunOS 4.1.4) stdlib.h doesn't declare strtod.
*/
extern double strtod(char *, char **);
double
fixstrtod(
char *string,
char **endPtr)
{
double d;
d = strtod(string, endPtr);
if ((endPtr != NULL) && (*endPtr != string) && ((*endPtr)[-1] == 0)) {
*endPtr -= 1;
}
return d;
}
-14
View File
@@ -1,14 +0,0 @@
/*
* float.h --
*
* This is a dummy header file to #include in Tcl when there
* is no float.h in /usr/include. Right now this file is empty:
* Tcl contains #ifdefs to deal with the lack of definitions;
* all it needs is for the #include statement to work.
*
* Copyright (c) 1993 The Regents of the University of California.
* Copyright (c) 1994 Sun Microsystems, Inc.
*
* See the file "license.terms" for information on usage and redistribution
* of this file, and for a DISCLAIMER OF ALL WARRANTIES.
*/
+1 -1
View File
@@ -106,5 +106,5 @@ closedir(
close(dirp->dd_fd);
dirp->dd_fd = -1;
dirp->dd_loc = 0;
ckfree((char *) dirp);
ckfree(dirp);
}
+1
View File
@@ -29,6 +29,7 @@ extern char * malloc(unsigned int numBytes);
extern void qsort(void *base, int n, int size, int (*compar)(
const void *element1, const void *element2));
extern char * realloc(char *ptr, unsigned int numBytes);
extern double strtod(const char *string, char **endPtr);
extern long strtol(const char *string, char **endPtr, int base);
extern unsigned long strtoul(const char *string, char **endPtr, int base);
+252
View File
@@ -0,0 +1,252 @@
/*
* strtod.c --
*
* Source code for the "strtod" library procedure.
*
* Copyright (c) 1988-1993 The Regents of the University of California.
* Copyright (c) 1994 Sun Microsystems, Inc.
*
* See the file "license.terms" for information on usage and redistribution
* of this file, and for a DISCLAIMER OF ALL WARRANTIES.
*/
#include "tclInt.h"
#ifndef TRUE
#define TRUE 1
#define FALSE 0
#endif
#ifndef NULL
#define NULL 0
#endif
static const int maxExponent = 511; /* Largest possible base 10 exponent. Any
* exponent larger than this will already
* produce underflow or overflow, so there's
* no need to worry about additional digits.
*/
static const double powersOf10[] = { /* Table giving binary powers of 10. Entry */
10., /* is 10^2^i. Used to convert decimal */
100., /* exponents into floating-point numbers. */
1.0e4,
1.0e8,
1.0e16,
1.0e32,
1.0e64,
1.0e128,
1.0e256
};
/*
*----------------------------------------------------------------------
*
* strtod --
*
* This procedure converts a floating-point number from an ASCII
* decimal representation to internal double-precision format.
*
* Results:
* The return value is the double-precision floating-point
* representation of the characters in string. If endPtr isn't
* NULL, then *endPtr is filled in with the address of the
* next character after the last one that was part of the
* floating-point number.
*
* Side effects:
* None.
*
*----------------------------------------------------------------------
*/
double
strtod(
const char *string, /* A decimal ASCII floating-point number,
* optionally preceded by white space. Must
* have form "-I.FE-X", where I is the integer
* part of the mantissa, F is the fractional
* part of the mantissa, and X is the
* exponent. Either of the signs may be "+",
* "-", or omitted. Either I or F may be
* omitted, or both. The decimal point isn't
* necessary unless F is present. The "E" may
* actually be an "e". E and X may both be
* omitted (but not just one). */
char **endPtr) /* If non-NULL, store terminating character's
* address here. */
{
int sign, expSign = FALSE;
double fraction, dblExp;
const double *d;
register const char *p;
register int c;
int exp = 0; /* Exponent read from "EX" field. */
int fracExp = 0; /* Exponent that derives from the fractional
* part. Under normal circumstatnces, it is
* the negative of the number of digits in F.
* However, if I is very long, the last digits
* of I get dropped (otherwise a long I with a
* large negative exponent could cause an
* unnecessary overflow on I alone). In this
* case, fracExp is incremented one for each
* dropped digit. */
int mantSize; /* Number of digits in mantissa. */
int decPt; /* Number of mantissa digits BEFORE decimal
* point. */
const char *pExp; /* Temporarily holds location of exponent in
* string. */
/*
* Strip off leading blanks and check for a sign.
*/
p = string;
while (isspace(UCHAR(*p))) {
p += 1;
}
if (*p == '-') {
sign = TRUE;
p += 1;
} else {
if (*p == '+') {
p += 1;
}
sign = FALSE;
}
/*
* Count the number of digits in the mantissa (including the decimal
* point), and also locate the decimal point.
*/
decPt = -1;
for (mantSize = 0; ; mantSize += 1)
{
c = *p;
if (!isdigit(c)) {
if ((c != '.') || (decPt >= 0)) {
break;
}
decPt = mantSize;
}
p += 1;
}
/*
* Now suck up the digits in the mantissa. Use two integers to collect 9
* digits each (this is faster than using floating-point). If the mantissa
* has more than 18 digits, ignore the extras, since they can't affect the
* value anyway.
*/
pExp = p;
p -= mantSize;
if (decPt < 0) {
decPt = mantSize;
} else {
mantSize -= 1; /* One of the digits was the point. */
}
if (mantSize > 18) {
fracExp = decPt - 18;
mantSize = 18;
} else {
fracExp = decPt - mantSize;
}
if (mantSize == 0) {
fraction = 0.0;
p = string;
goto done;
} else {
int frac1, frac2;
frac1 = 0;
for ( ; mantSize > 9; mantSize -= 1) {
c = *p;
p += 1;
if (c == '.') {
c = *p;
p += 1;
}
frac1 = 10*frac1 + (c - '0');
}
frac2 = 0;
for (; mantSize > 0; mantSize -= 1) {
c = *p;
p += 1;
if (c == '.') {
c = *p;
p += 1;
}
frac2 = 10*frac2 + (c - '0');
}
fraction = (1.0e9 * frac1) + frac2;
}
/*
* Skim off the exponent.
*/
p = pExp;
if ((*p == 'E') || (*p == 'e')) {
p += 1;
if (*p == '-') {
expSign = TRUE;
p += 1;
} else {
if (*p == '+') {
p += 1;
}
expSign = FALSE;
}
if (!isdigit(UCHAR(*p))) {
p = pExp;
goto done;
}
while (isdigit(UCHAR(*p))) {
exp = exp * 10 + (*p - '0');
p += 1;
}
}
if (expSign) {
exp = fracExp - exp;
} else {
exp = fracExp + exp;
}
/*
* Generate a floating-point number that represents the exponent. Do this
* by processing the exponent one bit at a time to combine many powers of
* 2 of 10. Then combine the exponent with the fraction.
*/
if (exp < 0) {
expSign = TRUE;
exp = -exp;
} else {
expSign = FALSE;
}
if (exp > maxExponent) {
exp = maxExponent;
errno = ERANGE;
}
dblExp = 1.0;
for (d = powersOf10; exp != 0; exp >>= 1, ++d) {
if (exp & 01) {
dblExp *= *d;
}
}
if (expSign) {
fraction /= dblExp;
} else {
fraction *= dblExp;
}
done:
if (endPtr != NULL) {
*endPtr = (char *) p;
}
if (sign) {
return -fraction;
}
return fraction;
}
+1 -1
View File
@@ -53,7 +53,7 @@ strtol(
*/
p = string;
while (TclIsSpaceProc(*p)) {
while (isspace(UCHAR(*p))) {
p += 1;
}
+1 -1
View File
@@ -74,7 +74,7 @@ strtoul(
*/
p = string;
while (TclIsSpaceProc(*p)) {
while (isspace(UCHAR(*p))) {
p += 1;
}
if (*p == '-') {
+1 -1
View File
@@ -100,7 +100,7 @@ waitpid(
} else {
prevPtr->nextPtr = waitPtr->nextPtr;
}
ckfree((char *) waitPtr);
ckfree(waitPtr);
return result;
}
+1 -1
View File
@@ -51,7 +51,7 @@ static int update_keys(unsigned long* pkeys,const z_crc_t* pcrc_32_tab,int c)
(*(pkeys+1)) += (*(pkeys+0)) & 0xff;
(*(pkeys+1)) = (*(pkeys+1)) * 134775813L + 1;
{
int keyshift = (int)((*(pkeys+1)) >> 24);
register int keyshift = (int)((*(pkeys+1)) >> 24);
(*(pkeys+2)) = CRC32((*(pkeys+2)), keyshift);
}
return c;
+1 -1
View File
@@ -97,7 +97,7 @@ void change_file_date(filename,dosdate,tmu_date)
SetFileTime(hFile,&ftm,&ftLastAcc,&ftm);
CloseHandle(hFile);
#else
#if defined(unix) || defined(__APPLE__)
#ifdef unix || __APPLE__
struct utimbuf ut;
struct tm newdate;
newdate.tm_sec = tmu_date.tm_sec;
+1 -1
View File
@@ -94,7 +94,7 @@ uLong filetime(f, tmzip, dt)
return ret;
}
#else
#if defined(unix) || defined(__APPLE__)
#ifdef unix || __APPLE__
uLong filetime(f, tmzip, dt)
char *f; /* name of file to get info on */
tm_zip *tmzip; /* return value: access, modific. and creation times */
+1 -1
View File
@@ -119,7 +119,7 @@ retrieve the stack trace when script evaluation returns
\fBTCL_ERROR\fR, like so:
.PP
.CS
int code = Tcl_Eval(interp, script);
int code = Tcl_EvalEx(interp, script, -1, 0);
if (code == TCL_ERROR) {
Tcl_Obj *options = \fBTcl_GetReturnOptions\fR(interp, code);
Tcl_Obj *key = Tcl_NewStringObj("-errorinfo", -1);
+1 -1
View File
@@ -4,7 +4,7 @@
'\"
'\" See the file "license.terms" for information on usage and redistribution
'\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
'\"
'\"
.TH Tcl_CallWhenDeleted 3 7.0 Tcl "Tcl Library Procedures"
.so man.macros
.BS
+2 -16
View File
@@ -79,9 +79,7 @@ The number of elements in the \fIobjv\fR array.
The arguments to the command to create the instance of the class.
.AP int skip in
The number of arguments at the start of the argument array, \fIobjv\fR, that
are not arguments to any constructors. This allows the generation of correct
error messages even when complicated calling patterns are used (e.g., via the
\fBnext\fR command).
are not arguments to any constructors.
.AP Tcl_ObjectMetadataType *metaTypePtr in
The type of \fImetadata\fR being set with \fBTcl_ClassSetMetadata\fR or
retrieved with \fBTcl_ClassGetMetadata\fR.
@@ -111,9 +109,7 @@ may be retrieved using the \fBTcl_GetObjectCommand\fR function, the name of
the object (and hence the name of the command) with \fBTcl_GetObjectName\fR,
and the namespace may be retrieved using the \fBTcl_GetObjectNamespace\fR
function. Note that the Tcl_Obj reference returned by \fBTcl_GetObjectName\fR
is a shared reference. You can also get whether the object has been marked for
deletion with \fBTcl_ObjectDeleted\fR (it returns true if deletion of the
object has begun); this can be useful during the processing of methods.
is a shared reference.
.PP
Instances of classes are created using \fBTcl_NewObjectInstance\fR, which
creates an object from any class (and which is internally called by both
@@ -125,16 +121,6 @@ created object, or NULL if the creation failed (when an error message will be
left in the interpreter result). In addition, objects may be copied by using
\fBTcl_CopyObjectInstance\fR which creates a copy of an object without running
any constructors.
.PP
Note that the lifetime management of objects is handled internally within
TclOO, and does not use \fBTcl_Preserve\fR. \fIIt is not safe to put a
Tcl_Object handle in a C structure with a lifespan different to the object;\fR
you should use the object's command name (as retrieved with
\fBTcl_GetObjectName\fR) instead. It is safe to use a Tcl_Object handle for
the lifespan of a call of a method on that object; handles do not become
invalid while there is an outstanding call on their object (even if the only
operation guaranteed to be safe on them is \fBTcl_ObjectDeleted\fR; the other
operations are only guaranteed to work on non-deleted objects).
.SH "OBJECT AND CLASS METADATA"
.PP
Every object and every class may have arbitrary amounts of metadata attached
+1 -1
View File
@@ -4,7 +4,7 @@
'\"
'\" See the file "license.terms" for information on usage and redistribution
'\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
'\"
'\"
.TH Tcl_CommandComplete 3 "" Tcl "Tcl Library Procedures"
.so man.macros
.BS
+1 -1
View File
@@ -4,7 +4,7 @@
'\"
'\" See the file "license.terms" for information on usage and redistribution
'\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
'\"
'\"
.TH Tcl_Concat 3 7.5 Tcl "Tcl Library Procedures"
.so man.macros
.BS
+1 -1
View File
@@ -4,7 +4,7 @@
'\"
'\" See the file "license.terms" for information on usage and redistribution
'\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
'\"
'\"
.TH Tcl_CreateFileHandler 3 8.0 Tcl "Tcl Library Procedures"
.so man.macros
.BS
+1 -1
View File
@@ -4,7 +4,7 @@
'\"
'\" See the file "license.terms" for information on usage and redistribution
'\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
'\"
'\"
.TH Tcl_CreateInterp 3 7.5 Tcl "Tcl Library Procedures"
.so man.macros
.BS
+1 -1
View File
@@ -4,7 +4,7 @@
'\"
'\" See the file "license.terms" for information on usage and redistribution
'\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
'\"
'\"
.TH Tcl_CreateTimerHandler 3 7.5 Tcl "Tcl Library Procedures"
.so man.macros
.BS
+1 -1
View File
@@ -4,7 +4,7 @@
'\"
'\" See the file "license.terms" for information on usage and redistribution
'\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
'\"
'\"
.TH Tcl_DetachPids 3 "" Tcl "Tcl Library Procedures"
.so man.macros
.BS
+1 -1
View File
@@ -3,7 +3,7 @@
'\"
'\" See the file "license.terms" for information on usage and redistribution
'\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
'\"
'\"
.TH Tcl_DictObj 3 8.5 Tcl "Tcl Library Procedures"
.so man.macros
.BS
+1 -1
View File
@@ -4,7 +4,7 @@
'\"
'\" See the file "license.terms" for information on usage and redistribution
'\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
'\"
'\"
.TH Tcl_DoWhenIdle 3 7.5 Tcl "Tcl Library Procedures"
.so man.macros
.BS
+1 -1
View File
@@ -3,7 +3,7 @@
'\"
'\" See the file "license.terms" for information on usage and redistribution
'\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
'\"
'\"
.TH Tcl_PutEnv 3 "7.5" Tcl "Tcl Library Procedures"
.so man.macros
.BS
+1 -1
View File
@@ -3,7 +3,7 @@
'\"
'\" See the file "license.terms" for information on usage and redistribution
'\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
'\"
'\"
.TH Tcl_ExprLongObj 3 8.0 Tcl "Tcl Library Procedures"
.so man.macros
.BS
+1 -1
View File
@@ -3,7 +3,7 @@
'\"
'\" See the file "license.terms" for information on usage and redistribution
'\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
'\"
'\"
.TH Tcl_FindExecutable 3 8.1 Tcl "Tcl Library Procedures"
.so man.macros
.BS
+1 -1
View File
@@ -3,7 +3,7 @@
'\"
'\" See the file "license.terms" for information on usage and redistribution
'\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
'\"
'\"
.TH Tcl_GetCwd 3 8.1 Tcl "Tcl Library Procedures"
.so man.macros
.BS
+1 -1
View File
@@ -3,7 +3,7 @@
'\"
'\" See the file "license.terms" for information on usage and redistribution
'\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
'\"
'\"
.TH Tcl_GetIndexFromObj 3 8.1 Tcl "Tcl Library Procedures"
.so man.macros
.BS
+5 -2
View File
@@ -57,6 +57,9 @@ after the optional white space and sign are
.QW \fB0x\fR
then \fIsrc\fR is expected to be in hexadecimal form; otherwise,
if the first such characters are
.QW \fB0d\fR
then \fIsrc\fR is expected to be in decimal form; otherwise,
if the first such characters are
.QW \fB0o\fR
then \fIsrc\fR is expected to be in octal form; otherwise,
if the first such characters are
@@ -65,8 +68,8 @@ then \fIsrc\fR is expected to be in binary form; otherwise,
if the first such character is
.QW \fB0\fR
then \fIsrc\fR
is expected to be in octal form; otherwise, \fIsrc\fR is
expected to be in decimal form.
is expected to be in octal form; otherwise, \fIsrc\fR
is expected to be in decimal form.
.PP
\fBTcl_GetDouble\fR expects \fIsrc\fR to consist of a floating-point
number, which is: white space; a sign; a sequence of digits; a
+1 -1
View File
@@ -3,7 +3,7 @@
'\"
'\" See the file "license.terms" for information on usage and redistribution
'\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
'\"
'\"
.TH Tcl_GetOpenFile 3 8.0 Tcl "Tcl Library Procedures"
.so man.macros
.BS
+1 -1
View File
@@ -3,7 +3,7 @@
'\"
'\" See the file "license.terms" for information on usage and redistribution
'\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
'\"
'\"
.TH Tcl_GetTime 3 8.4 Tcl "Tcl Library Procedures"
.so man.macros
.BS
+1 -1
View File
@@ -281,7 +281,7 @@ The \fIhashKeyProc\fR member contains the address of a function called to
calculate a hash value for the key.
.PP
.CS
typedef unsigned int \fBTcl_HashKeyProc\fR(
typedef TCL_HASH_TYPE \fBTcl_HashKeyProc\fR(
Tcl_HashTable *\fItablePtr\fR,
void *\fIkeyPtr\fR);
.CE
+1 -1
View File
@@ -1,7 +1,7 @@
'\"
'\" Copyright (c) 1998-2000 by Scriptics Corporation.
'\" All rights reserved.
'\"
'\"
.TH Tcl_Init 3 8.0 Tcl "Tcl Library Procedures"
.so man.macros
.BS
+4 -4
View File
@@ -3,7 +3,7 @@
'\"
'\" See the file "license.terms" for information on usage and redistribution
'\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
'\"
'\"
.TH Tcl_InitStubs 3 8.1 Tcl "Tcl Library Procedures"
.so man.macros
.BS
@@ -23,11 +23,11 @@ Tcl interpreter handle.
A version string consisting of one or more decimal numbers
separated by dots.
.AP int exact in
Non-zero means that only the particular version specified by
1 means that only the particular version specified by
\fIversion\fR is acceptable.
Zero means that versions newer than \fIversion\fR are also
0 means that versions newer than \fIversion\fR are also
acceptable as long as they have the same major version number
as \fIversion\fR.
as \fIversion\fR. Other bits have no effect.
.BE
.SH INTRODUCTION
.PP
+1 -1
View File
@@ -97,7 +97,7 @@ are provided by the C language standard. The \fBTcl_WideInt\fR type is a
typedef defined to be whatever signed integral type covers at least the
64-bit integer range (-9223372036854775808 to 9223372036854775807). Depending
on the platform and the C compiler, the actual type might be
\fBlong int\fR, \fBlong long int\fR, \fB__int64\fR, or something else.
\fBlong long int\fR, \fB__int64\fR, or something else.
The \fBmp_int\fR type is a multiple-precision integer type defined
by the LibTomMath multiple-precision integer library.
.PP
+1 -1
View File
@@ -101,7 +101,7 @@ the command. The \fIfreeProc\fR field will be initialized to zero,
and \fIinterp->result\fR will point to an empty string. Commands that
do not return any value can simply leave the fields alone.
Furthermore, the empty string pointed to by \fIresult\fR is actually
part of an array of \fBTCL_RESULT_SIZE\fR characters (approximately 200).
part of an array of approximately 200 characters.
If a command wishes to return a short string, it can simply copy
it to the area pointed to by \fIinterp->result\fR. Or, it can use
the sprintf procedure to generate a short result string at the location
+1 -1
View File
@@ -3,7 +3,7 @@
'\"
'\" See the file "license.terms" for information on usage and redistribution
'\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
'\"
'\"
.TH Tcl_LimitCheck 3 8.5 Tcl "Tcl Library Procedures"
.so man.macros
.BS
+1 -1
View File
@@ -4,7 +4,7 @@
'\"
'\" See the file "license.terms" for information on usage and redistribution
'\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
'\"
'\"
.TH Load 3 8.6 Tcl "Tcl Library Procedures"
.so man.macros
.BS
+2 -2
View File
@@ -3,10 +3,10 @@
'\"
'\" See the file "license.terms" for information on usage and redistribution
'\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
'\"
'\"
'\" Note that some of these functions do not seem to belong, but they
'\" were all introduced with the same TIP (#139)
'\"
'\"
.TH Tcl_Namespace 3 8.5 Tcl "Tcl Library Procedures"
.so man.macros
.BS
+1 -1
View File
@@ -277,7 +277,7 @@ If an error occurs while opening the channel, \fBTcl_OpenCommandChannel\fR
returns NULL and records a POSIX error code that can be retrieved with
\fBTcl_GetErrno\fR.
In addition, \fBTcl_OpenCommandChannel\fR leaves an error message in
the interpreter's result. \fIinterp\fR cannot be NULL.
the interpreter's result if \fIinterp\fR is not NULL.
.PP
The newly created channel is not registered in the supplied interpreter; to
register it, use \fBTcl_RegisterChannel\fR, described below.
+17 -3
View File
@@ -4,12 +4,12 @@
'\" See the file "license.terms" for information on usage and redistribution
'\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
'\"
.TH Tcl_OpenTcpClient 3 8.0 Tcl "Tcl Library Procedures"
.TH Tcl_OpenTcpClient 3 8.7 Tcl "Tcl Library Procedures"
.so man.macros
.BS
'\" Note: do not modify the .SH NAME line immediately below!
.SH NAME
Tcl_OpenTcpClient, Tcl_MakeTcpClientChannel, Tcl_OpenTcpServer \- procedures to open channels using TCP sockets
Tcl_OpenTcpClient, Tcl_MakeTcpClientChannel, Tcl_OpenTcpServer, Tcl_OpenTcpServerEx \- procedures to open channels using TCP sockets
.SH SYNOPSIS
.nf
\fB#include <tcl.h> \fR
@@ -23,6 +23,9 @@ Tcl_Channel
Tcl_Channel
\fBTcl_OpenTcpServer\fR(\fIinterp, port, myaddr, proc, clientData\fR)
.sp
Tcl_Channel
\fBTcl_OpenTcpServerEx\fR(\fIinterp, service, myaddr, flags, proc, clientData\fR)
.sp
.SH ARGUMENTS
.AS Tcl_TcpAcceptProc clientData
.AP Tcl_Interp *interp in
@@ -30,6 +33,9 @@ Tcl interpreter to use for error reporting. If non-NULL and an
error occurs, an error message is left in the interpreter's result.
.AP int port in
A port number to connect to as a client or to listen on as a server.
.AP "const char" *service in
A string specifying the port number to connect to as a client or to listen on as
a server.
.AP "const char" *host in
A string specifying a host name or address for the remote end of the connection.
.AP int myport in
@@ -41,6 +47,9 @@ for the local end of the connection. If NULL, a default interface is
chosen.
.AP int async in
If nonzero, the client socket is connected asynchronously to the server.
.AP "unsigned int" flags in
ORed combination of \fBTCL_TCPSERVER\fR flags that specify additional
informations about the socket being created.
.AP ClientData sock in
Platform-specific handle for client TCP socket.
.AP Tcl_TcpAcceptProc *proc in
@@ -130,7 +139,7 @@ for the new channel, \fIhostName\fR points to a string containing
the name of the client host making the connection, and \fIport\fR
will contain the client's port number.
The new channel
is opened for both input and output.
is opened for both input and output.
If \fIproc\fR raises an error, the connection is closed automatically.
\fIProc\fR has no return value, but if it wishes to reject the
connection it can close \fIchannel\fR.
@@ -158,6 +167,11 @@ register it, use \fBTcl_RegisterChannel\fR.
If one of the standard channels, \fBstdin\fR, \fBstdout\fR or \fBstderr\fR was
previously closed, the act of creating the new channel also assigns it as a
replacement for the standard channel.
.SS TCL_OPENTCPSERVEREX
.PP
\fBTcl_OpenTcpServerEx\fR behaviour is identical to \fBTcl_OpenTcpServer\fR but
gives more flexibility to the user by providing a mean to further customize some
aspects of the socket via the \fIflags\fR parameter.
.SH "PLATFORM ISSUES"
.PP
On Unix platforms, the socket handle is a Unix file descriptor as
+2 -2
View File
@@ -103,8 +103,8 @@ the argument's value. The following values are acceptable values for
\fBTCL_ARGV_CONSTANT\fR
.
The argument does not take any following value argument. If this argument is
present, the \fIsrcPtr\fR field (casted to \fIint\fR) is copied to the variable
pointed to by the \fIdstPtr\fR field. The \fIclientData\fR field is ignored.
present, the int pointed to by the \fIsrcPtr\fR field is copied to the
\fIdstPtr\fR field. The \fIclientData\fR field is ignored.
.TP
\fBTCL_ARGV_END\fR
.
+1 -1
View File
@@ -4,7 +4,7 @@
'\"
'\" See the file "license.terms" for information on usage and redistribution
'\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
'\"
'\"
.TH Tcl_Preserve 3 7.5 Tcl "Tcl Library Procedures"
.so man.macros
.BS
+1 -1
View File
@@ -4,7 +4,7 @@
'\"
'\" See the file "license.terms" for information on usage and redistribution
'\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
'\"
'\"
.TH Tcl_PrintDouble 3 8.0 Tcl "Tcl Library Procedures"
.so man.macros
.BS
+1 -3
View File
@@ -3,7 +3,7 @@
'\"
'\" See the file "license.terms" for information on usage and redistribution
'\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
'\"
'\"
.TH Tcl_RecordAndEvalObj 3 8.0 Tcl "Tcl Library Procedures"
.so man.macros
.BS
@@ -32,8 +32,6 @@ the command at global level instead of the current stack level.
.PP
\fBTcl_RecordAndEvalObj\fR is invoked to record a command as an event
on the history list and then execute it using \fBTcl_EvalObjEx\fR
(or \fBTcl_GlobalEvalObj\fR if the \fBTCL_EVAL_GLOBAL\fR bit is set
in \fIflags\fR).
It returns a completion code such as \fBTCL_OK\fR just like \fBTcl_EvalObjEx\fR,
as well as a result value containing additional information
(a result value or error message)
+1 -1
View File
@@ -4,7 +4,7 @@
'\"
'\" See the file "license.terms" for information on usage and redistribution
'\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
'\"
'\"
.TH Tcl_RecordAndEval 3 7.4 Tcl "Tcl Library Procedures"
.so man.macros
.BS
+1 -1
View File
@@ -3,7 +3,7 @@
'\"
'\" See the file "license.terms" for information on usage and redistribution
'\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
'\"
'\"
.TH Tcl_SetErrno 3 8.3 Tcl "Tcl Library Procedures"
.so man.macros
.BS
+1 -1
View File
@@ -4,7 +4,7 @@
'\"
'\" See the file "license.terms" for information on usage and redistribution
'\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
'\"
'\"
.TH Tcl_SetRecursionLimit 3 7.0 Tcl "Tcl Library Procedures"
.so man.macros
.BS
+1 -1
View File
@@ -3,7 +3,7 @@
'\"
'\" See the file "license.terms" for information on usage and redistribution
'\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
'\"
'\"
.TH Tcl_SignalId 3 8.3 Tcl "Tcl Library Procedures"
.so man.macros
.BS
+1 -1
View File
@@ -4,7 +4,7 @@
'\"
'\" See the file "license.terms" for information on usage and redistribution
'\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
'\"
'\"
.TH Tcl_Sleep 3 7.5 Tcl "Tcl Library Procedures"
.so man.macros
.BS
+1 -1
View File
@@ -4,7 +4,7 @@
'\"
'\" See the file "license.terms" for information on usage and redistribution
'\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
'\"
'\"
.TH Tcl_SplitList 3 8.0 Tcl "Tcl Library Procedures"
.so man.macros
.BS
+1 -1
View File
@@ -3,7 +3,7 @@
'\"
'\" See the file "license.terms" for information on usage and redistribution
'\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
'\"
'\"
.TH Tcl_SplitPath 3 7.5 Tcl "Tcl Library Procedures"
.so man.macros
.BS
+1 -1
View File
@@ -3,7 +3,7 @@
'\"
'\" See the file "license.terms" for information on usage and redistribution
'\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
'\"
'\"
.TH Tcl_StaticPackage 3 7.5 Tcl "Tcl Library Procedures"
.so man.macros
.BS
+1 -1
View File
@@ -3,7 +3,7 @@
'\"
'\" See the file "license.terms" for information on usage and redistribution
'\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
'\"
'\"
.TH "Standard Channels" 3 7.5 Tcl "Tcl Library Procedures"
.so man.macros
.BS
+1 -1
View File
@@ -4,7 +4,7 @@
'\"
'\" See the file "license.terms" for information on usage and redistribution
'\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
'\"
'\"
.TH Tcl_StringMatch 3 8.5 Tcl "Tcl Library Procedures"
.so man.macros
.BS
+44 -2
View File
@@ -8,7 +8,7 @@
.so man.macros
.BS
.SH NAME
Tcl_NewStringObj, Tcl_NewUnicodeObj, Tcl_SetStringObj, Tcl_SetUnicodeObj, Tcl_GetStringFromObj, Tcl_GetString, Tcl_GetUnicodeFromObj, Tcl_GetUnicode, Tcl_GetUniChar, Tcl_GetCharLength, Tcl_GetRange, Tcl_AppendToObj, Tcl_AppendUnicodeToObj, Tcl_AppendObjToObj, Tcl_AppendStringsToObj, Tcl_AppendStringsToObjVA, Tcl_AppendLimitedToObj, Tcl_Format, Tcl_AppendFormatToObj, Tcl_ObjPrintf, Tcl_AppendPrintfToObj, Tcl_SetObjLength, Tcl_AttemptSetObjLength, Tcl_ConcatObj \- manipulate Tcl values as strings
Tcl_NewStringObj, Tcl_NewUnicodeObj, Tcl_SetStringObj, Tcl_SetUnicodeObj, Tcl_GetStringFromObj, Tcl_GetString, Tcl_GetUnicodeFromObj, Tcl_GetUnicode, Tcl_GetUniChar, Tcl_GetCharLength, Tcl_GetRange, Tcl_AppendToObj, Tcl_AppendUnicodeToObj, Tcl_AppendObjToObj, Tcl_AppendStringsToObj, Tcl_AppendStringsToObjVA, Tcl_AppendLimitedToObj, Tcl_Format, Tcl_AppendFormatToObj, Tcl_ObjPrintf, Tcl_AppendPrintfToObj, Tcl_SetObjLength, Tcl_AttemptSetObjLength, Tcl_ConcatObj, Tcl_ReplaceObj \- manipulate Tcl values as strings
.SH SYNOPSIS
.nf
\fB#include <tcl.h>\fR
@@ -84,14 +84,19 @@ int
.sp
Tcl_Obj *
\fBTcl_ConcatObj\fR(\fIobjc, objv\fR)
.sp
Tcl_Obj *
\fBTcl_ReplaceObj\fR(\fIinterp, objPtr, startIndex, removeCount, insertObjPtr\fR)
.SH ARGUMENTS
.AS "const Tcl_UniChar" *appendObjPtr in/out
.AP Tcl_Interp *interp in
If non-NULL, interpreter in which error result messages are stored.
.AP "const char" *bytes in
Points to the first byte of an array of UTF-8-encoded bytes
used to set or append to a string value.
This byte array may contain embedded null characters
unless \fInumChars\fR is negative. (Applications needing null bytes
should represent them as the two-byte sequence \fI\e300\e200\fR, use
should represent them as the two-byte sequence \fI\e700\e600\fR, use
\fBTcl_ExternalToUtf\fR to convert, or \fBTcl_NewByteArrayObj\fR if
the string is a collection of uninterpreted bytes.)
.AP int length in
@@ -143,6 +148,12 @@ The array of values to format or concatenate.
.AP int newLength in
New length for the string value of \fIobjPtr\fR, not including the
final null character.
.AP int startIndex in
The index of the first character to insert, replace, or remove.
.AP int removeCount in
The number of characters to replace or remove.
.AP Tcl_Obj *insertObjPtr in/out
The value to insert or replace. If NULL, interpreted as empty string.
.BE
.SH DESCRIPTION
.PP
@@ -380,6 +391,37 @@ white space, then that value is ignored entirely. This white-space
removal was added to make the output of the \fBconcat\fR command
cleaner-looking. \fBTcl_ConcatObj\fR returns a pointer to a
newly-created value whose ref count is zero.
.PP
\fBTcl_ReplaceObj\fR inserts, replaces, or removes a substring in \fIobjPtr\fR
and returns a pointer to the new or updated string object.
If \fIobjPtr\fR or \fIinsertObjPtr\fR are unshared, one of them will be modified
in place, and its address will be returned.
If this optimization is unavailable, a new string object will be allocated to
store the result, its address will be returned, and neither \fIobjPtr\fR nor
\fIinsertObjPtr\fR will be modified.
Should a memory allocation error occur, \fBTcl_ReplaceObj\fR returns NULL and
(if \fIinterp\fR is non-NULL) places error information in the result value of
\fIinterp\fR.
.PP
The choice of operation performed by \fBTcl_ReplaceObj\fR is determined by
\fIremoveCount\fR and the length of \fIinsertObjPtr\fR.
To insert, \fIremoveCount\fR is zero, and \fIinsertObjPtr\fR is the insertion
substring.
To replace, \fIremoveCount\fR is the number of characters to replace, and
\fIinsertObjPtr\fR is the replacement substring.
To remove, \fIremoveCount\fR is the number of characters to remove, and
\fIinsertObjPtr\fR is NULL or empty string.
.PP
\fIstartIndex\fR is the index of the first character in \fIobjPtr\fR to insert,
replace, or remove.
Negative \fIstartIndex\fR is taken to be zero, and large \fIstartIndex\fR is
automatically limited to be no greater than the length of \fIobjPtr\fR.
In a similar manner, negative \fIremoveCount\fR is taken to be zero, and large
\fIremoveCount\fR is automatically limited such that the sum of \fIstartIndex\fR
and \fIremoveCount\fR is no greater than the length of \fIobjPtr\fR.
Consequently, if \fIstartIndex\fR is at the end of \fIobjPtr\fR,
\fIinsertObjPtr\fR will be appended to \fIobjPtr\fR, and \fIremoveCount\fR will
be ignored.
.SH "SEE ALSO"
Tcl_NewObj(3), Tcl_IncrRefCount(3), Tcl_DecrRefCount(3), format(n), sprintf(3)
.SH KEYWORDS
+1 -1
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@@ -3,7 +3,7 @@
'\"
'\" See the file "license.terms" for information on usage and redistribution
'\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
'\"
'\"
.TH Tcl_SubstObj 3 8.4 Tcl "Tcl Library Procedures"
.so man.macros
.BS
+2 -2
View File
@@ -1,8 +1,8 @@
'\"
'\"
'\" Copyright (c) 1992-1999 Karl Lehenbauer and Mark Diekhans.
'\" Copyright (c) 2000 by Scriptics Corporation.
'\" All rights reserved.
'\"
'\"
.TH TCL_MEM_DEBUG 3 8.1 Tcl "Tcl Library Procedures"
.so man.macros
.BS
+1 -1
View File
@@ -3,7 +3,7 @@
'\"
'\" See the file "license.terms" for information on usage and redistribution
'\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
'\"
'\"
.TH TclZlib 3 8.6 Tcl "Tcl Library Procedures"
.so man.macros
.BS
+3 -4
View File
@@ -80,10 +80,9 @@ and all following characters into their lower-case equivalents.
.SH BUGS
.PP
At this time, the case conversions are only defined for the Unicode
plane 0 characters. The result for Unicode characters above 0xffff
is undefined, but - actually - only the lower 16 bits of the
character value is handled.
At this time, the case conversions are only defined for the ISO8859-1
characters. Unicode characters above 0x00ff are not modified by these
routines.
.SH KEYWORDS
utf, unicode, toupper, tolower, totitle, case
+4 -4
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@@ -331,11 +331,11 @@ trace procedures will always be invoked.
.SH "RESTRICTIONS"
.PP
A trace procedure can be called at any time, even when there
are partially formed results stored in the interpreter. If
is a partially formed result in the interpreter's result area. If
the trace procedure does anything that could damage this result (such
as calling \fBTcl_Eval\fR) then it must use the \fBTcl_SaveInterpState\fR
and related routines to save and restore the original state of
the interpreter before it returns.
as calling \fBTcl_Eval\fR) then it must save the original values of
the interpreter's \fBresult\fR and \fBfreeProc\fR fields and restore
them before it returns.
.SH "UNDEFINED VARIABLES"
.PP
It is legal to set a trace on an undefined variable.
+1 -1
View File
@@ -48,7 +48,7 @@ int
.SH ARGUMENTS
.AS int ch
.AP int ch in
The Tcl_UniChar to be examined.
The Unicode character to be examined.
.BE
.SH DESCRIPTION
+1 -1
View File
@@ -4,7 +4,7 @@
'\"
'\" See the file "license.terms" for information on usage and redistribution
'\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
'\"
'\"
.TH break n "" Tcl "Tcl Built-In Commands"
.so man.macros
.BS
+1 -1
View File
@@ -4,7 +4,7 @@
'\"
'\" See the file "license.terms" for information on usage and redistribution
'\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
'\"
'\"
.TH case n 7.0 Tcl "Tcl Built-In Commands"
.so man.macros
.BS
+1 -1
View File
@@ -4,7 +4,7 @@
'\"
'\" See the file "license.terms" for information on usage and redistribution
'\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
'\"
'\"
.TH cd n "" Tcl "Tcl Built-In Commands"
.so man.macros
.BS
+6 -20
View File
@@ -89,10 +89,9 @@ have 59 or 61 seconds.
.TP
\fIunit\fR
One of the words, \fBseconds\fR, \fBminutes\fR, \fBhours\fR,
\fBdays\fR, \fBweeks\fR, \fBmonths\fR, or \fByears\fR, or
any unique prefix of such a word. Used in conjunction with \fIcount\fR
to identify an interval of time, for example, \fI3 seconds\fR or
\fI1 year\fR.
\fBdays\fR, \fBweekdays\fR, \fBweeks\fR, \fBmonths\fR, or \fByears\fR.
Used in conjunction with \fIcount\fR to identify an interval of time,
for example, \fI3 seconds\fR or \fI1 year\fR.
.SS "OPTIONS"
.TP
\fB\-base\fR time
@@ -175,8 +174,7 @@ given as its first argument. The remaining arguments (other than the
possible \fB\-timezone\fR, \fB\-locale\fR and \fB\-gmt\fR options)
are integers and keywords in alternation, where the keywords are chosen
from \fBseconds\fR, \fBminutes\fR, \fBhours\fR,
\fBdays\fR, \fBweeks\fR, \fBmonths\fR, or \fByears\fR, or
any unique prefix of such a word.
\fBdays\fR, \fBweekdays\fR, \fBweeks\fR, \fBmonths\fR, or \fByears\fR.
.PP
Addition of seconds, minutes and hours is fairly straightforward;
the given time increment (times sixty for minutes, or 3600 for hours)
@@ -213,7 +211,8 @@ the given time to a calendar day and time of day in the appropriate
time zone and locale. The requisite number of days (weeks are converted
to days by multiplying by seven) is added to the calendar day, and
the date and time are then converted back to a count of seconds from
the epoch time.
the epoch time. The \fBweekdays\fR keyword is similar to \fBdays\fR,
with the only difference that weekends - Saturdays and Sundays - are skipped.
.PP
Adding and subtracting a given number of days across the point that
the time changes at the start or end of summer time (Daylight Saving Time)
@@ -453,19 +452,6 @@ If this situation occurs, the first occurrence of the time is chosen.
(For this reason, it is wise to have the input string contain the
time zone when converting local times. This caveat does not apply to
UTC times.)
.PP
If the interpretation of the groups yields an impossible time because
a field is out of range, enough of that field's unit will be added to
or subtracted from the time to bring it in range. Thus, if attempting to
scan or format day 0 of the month, one day will be subtracted from day
1 of the month, yielding the last day of the previous month.
.PP
If the interpretation of the groups yields an impossible time because
a Daylight Saving Time change skips over that time, or an ambiguous
time because a Daylight Saving Time change skips back so that the clock
observes the given time twice, and no time zone specifier (\fB%z\fR
or \fB%Z\fR) is present in the format, the time is interpreted as
if the clock had not changed.
.SH "FORMAT GROUPS"
.PP
The following format groups are recognized by the \fBclock scan\fR and
+1 -1
View File
@@ -4,7 +4,7 @@
'\"
'\" See the file "license.terms" for information on usage and redistribution
'\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
'\"
'\"
.TH close n 7.5 Tcl "Tcl Built-In Commands"
.so man.macros
.BS
+1 -1
View File
@@ -4,7 +4,7 @@
'\"
'\" See the file "license.terms" for information on usage and redistribution
'\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
'\"
'\"
.TH concat n 8.3 Tcl "Tcl Built-In Commands"
.so man.macros
.BS
+2 -2
View File
@@ -4,7 +4,7 @@
'\"
'\" See the file "license.terms" for information on usage and redistribution
'\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
'\"
'\"
.TH continue n "" Tcl "Tcl Built-In Commands"
.so man.macros
.BS
@@ -23,7 +23,7 @@ exception to occur.
The exception causes the current script to be aborted
out to the innermost containing loop command, which then
continues with the next iteration of the loop.
Catch exceptions are also handled in a few other situations, such
Continue exceptions are also handled in a few other situations, such
as the \fBcatch\fR command and the outermost scripts of procedure
bodies.
.SH EXAMPLE
+3 -3
View File
@@ -33,9 +33,9 @@ as the empty string, a new name is chosen. Names, unless specified, are
chosen with the same algorithm used by the \fBnew\fR method of
\fBoo::class\fR.
.VE TIP473
The copied object will be of the same class as the source object, and will have
all its per-object methods copied. If it is a class, it will also have all the
class methods in the class copied, but it will not have any of its instances
The copied object will be of the same class as the source object, and will have
all its per-object methods copied. If it is a class, it will also have all the
class methods in the class copied, but it will not have any of its instances
copied.
.PP
.VS
+1 -1
View File
@@ -3,7 +3,7 @@
'\"
'\" See the file "license.terms" for information on usage and redistribution
'\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
'\"
'\"
.TH coroutine n 8.6 Tcl "Tcl Built-In Commands"
.so man.macros
.BS
+22 -13
View File
@@ -50,13 +50,12 @@ being constructed. Within the constructor, the \fBnext\fR command should be
used to call the superclasses' constructors. If \fIbodyScript\fR is the empty
string, the constructor will be deleted.
.TP
\fBdeletemethod\fI name\fR ?\fIname ...\fR?
\fBdeletemethod\fI name\fR ?\fIname ...\fR
.
This deletes each of the methods called \fIname\fR from a class. The methods
must have previously existed in that class. Does not affect the superclasses
of the class, nor does it affect the subclasses or instances of the class
(except when they have a call chain through the class being modified) or the
class object itself.
(except when they have a call chain through the class being modified).
.TP
\fBdestructor\fI bodyScript\fR
.
@@ -136,14 +135,15 @@ This renames the method called \fIfromName\fR in a class to \fItoName\fR. The
method must have previously existed in the class, and \fItoName\fR must not
previously refer to a method in that class. Does not affect the superclasses
of the class, nor does it affect the subclasses or instances of the class
(except when they have a call chain through the class being modified), or the
class object itself. Does
(except when they have a call chain through the class being modified). Does
not change the export status of the method; if it was exported before, it will
be afterwards.
.TP
\fBself\fI subcommand arg ...\fR
.TP
\fBself\fI script\fR
.TP
\fBself\fR
.
This command is equivalent to calling \fBoo::objdefine\fR on the class being
defined (see \fBCONFIGURING OBJECTS\fR below for a description of the
@@ -153,6 +153,13 @@ and
.QW "\fBoo::define \fIcls \fBself \fIsubcommand ...\fR"
operates identically to
.QW "\fBoo::objdefine \fIcls subcommand ...\fR" .
.RS
.PP
.VS TIP470
If no arguments at all are used, this gives the name of the class currently
being configured.
.VE TIP470
.RE
.TP
\fBsuperclass\fR ?\fI\-slotOperation\fR? ?\fIclassName ...\fR?
.VS
@@ -205,10 +212,8 @@ well be in an inconsistent state unless additional configuration work is done.
\fBdeletemethod\fI name\fR ?\fIname ...\fR
.
This deletes each of the methods called \fIname\fR from an object. The methods
must have previously existed in that object (e.g., because it was created
through \fBoo::objdefine method\fR). Does not affect the classes that the
object is an instance of, or remove the exposure of those class-provided
methods in the instance of that class.
must have previously existed in that object. Does not affect the classes that
the object is an instance of.
.TP
\fBexport\fI name \fR?\fIname ...\fR?
.
@@ -266,10 +271,14 @@ By default, this slot works by replacement.
This renames the method called \fIfromName\fR in an object to \fItoName\fR.
The method must have previously existed in the object, and \fItoName\fR must
not previously refer to a method in that object. Does not affect the classes
that the object is an instance of and cannot rename in an instance object the
methods provided by those classes (though a \fBoo::objdefine forward\fRed
method may provide an equivalent capability). Does not change the export
status of the method; if it was exported before, it will be afterwards.
that the object is an instance of. Does not change the export status of the
method; if it was exported before, it will be afterwards.
.TP
\fBself \fR
.
.VS TIP470
This gives the name of the object currently being configured.
.VE TIP470
.TP
\fBunexport\fI name \fR?\fIname ...\fR?
.
+1 -1
View File
@@ -4,7 +4,7 @@
'\"
'\" See the file "license.terms" for information on usage and redistribution
'\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
'\"
'\"
.TH eof n 7.5 Tcl "Tcl Built-In Commands"
.so man.macros
.BS
+1 -1
View File
@@ -4,7 +4,7 @@
'\"
'\" See the file "license.terms" for information on usage and redistribution
'\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
'\"
'\"
.TH eval n "" Tcl "Tcl Built-In Commands"
.so man.macros
.BS
-17
View File
@@ -217,19 +217,6 @@ information is instead sent to the console, if one is present, or is
discarded.
.RS
.PP
Note that the current escape resp. quoting of arguments for windows works only
with executables using CommandLineToArgv, CRT-library or similar, as well as
with the windows batch files (excepting the newline, see below).
Although it is the common escape algorithm, but, in fact, the way how the
executable parses the command-line (resp. splits it into single arguments)
is decisive.
.PP
Unfortunately, there is currently no way to supply newline character within
an argument to the batch files (\fB.cmd\fR or \fB.bat\fR) or to the command
processor (\fBcmd.exe /c\fR), because this causes truncation of command-line
(also the argument chain) on the first newline character.
But it works properly with an executable (using CommandLineToArgv, etc).
.PP
The Tk console text widget does not provide real standard IO capabilities.
Under Tk, when redirecting from standard input, all applications will see an
immediate end-of-file; information redirected to standard output or standard
@@ -422,10 +409,6 @@ that sometimes pop up:
With the file \fIcmp.bat\fR looking something like:
.PP
.CS
@gcc %*
.CE
or like another variant using single parameters:
.CS
@gcc %1 %2 %3 %4 %5 %6 %7 %8 %9
.CE
.SS "WORKING WITH COMMAND BUILT-INS"
+1 -1
View File
@@ -4,7 +4,7 @@
'\"
'\" See the file "license.terms" for information on usage and redistribution
'\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
'\"
'\"
.TH exit n "" Tcl "Tcl Built-In Commands"
.so man.macros
.BS
+171 -237
View File
@@ -17,14 +17,14 @@ expr \- Evaluate an expression
.BE
.SH DESCRIPTION
.PP
Concatenates \fIarg\fRs (adding separator spaces between them),
evaluates the result as a Tcl expression, and returns the value.
The operators permitted in Tcl expressions include a subset of
Concatenates \fIarg\fRs, separated by a space, into an expression, and evaluates
that expression, returning its value.
The operators permitted in an expression include a subset of
the operators permitted in C expressions. For those operators
common to both Tcl and C, Tcl applies the same meaning and precedence
as the corresponding C operators.
Expressions almost always yield numeric results
(integer or floating-point values).
The value of an expression is often a numeric result, either an integer or a
floating-point value, but may also be a non-numeric value.
For example, the expression
.PP
.CS
@@ -32,81 +32,72 @@ For example, the expression
.CE
.PP
evaluates to 14.2.
Tcl expressions differ from C expressions in the way that
operands are specified. Also, Tcl expressions support
non-numeric operands and string comparisons, as well as some
Expressions differ from C expressions in the way that
operands are specified. Expressions also support
non-numeric operands, string comparisons, and some
additional operators not found in C.
.PP
When an expression evaluates to an integer, the value is the decimal form of
the integer, and when an expression evaluates to a floating-point number, the
value is the form produced by the \fB%g\fR format specifier of Tcl's
\fBformat\fR command.
.SS OPERANDS
.PP
A Tcl expression consists of a combination of operands, operators,
parentheses and commas.
White space may be used between the operands and operators and
parentheses (or commas); it is ignored by the expression's instructions.
Where possible, operands are interpreted as integer values.
Integer values may be specified in decimal (the normal case), in binary
(if the first two characters of the operand are \fB0b\fR), in octal
(if the first two characters of the operand are \fB0o\fR), or in hexadecimal
(if the first two characters of the operand are \fB0x\fR). For
compatibility with older Tcl releases, an octal integer value is also
indicated simply when the first character of the operand is \fB0\fR,
whether or not the second character is also \fBo\fR.
If an operand does not have one of the integer formats given
above, then it is treated as a floating-point number if that is
possible. Floating-point numbers may be specified in any of several
common formats making use of the decimal digits, the decimal point \fB.\fR,
the characters \fBe\fR or \fBE\fR indicating scientific notation, and
the sign characters \fB+\fR or \fB\-\fR. For example, all of the
following are valid floating-point numbers: 2.1, 3., 6e4, 7.91e+16.
Also recognized as floating point values are the strings \fBInf\fR
and \fBNaN\fR making use of any case for each character.
If no numeric interpretation is possible (note that all literal
operands that are not numeric or boolean must be quoted with either
braces or with double quotes), then an operand is left as a string
(and only a limited set of operators may be applied to it).
An expression consists of a combination of operands, operators, parentheses and
commas, possibly with whitespace between any of these elements, which is
ignored.
An integer operand may be specified in decimal (the normal case, the optional
first two characters are \fB0d\fR), binary
(the first two characters are \fB0b\fR), octal
(the first two characters are \fB0o\fR), or hexadecimal
(the first two characters are \fB0x\fR) form. For
compatibility with older Tcl releases, an operand that begins with \fB0\fR is
interpreted as an octal integer even if the second character is not \fBo\fR.
A floating-point number may be specified in any of several
common decimal formats, and may use the decimal point \fB.\fR,
\fBe\fR or \fBE\fR for scientific notation, and
the sign characters \fB+\fR and \fB\-\fR. The
following are all valid floating-point numbers: 2.1, 3., 6e4, 7.91e+16.
The strings \fBInf\fR
and \fBNaN\fR, in any combination of case, are also recognized as floating point
values. An operand that doesn't have a numeric interpretation must be quoted
with either braces or with double quotes.
.PP
Operands may be specified in any of the following ways:
An operand may be specified in any of the following ways:
.IP [1]
As a numeric value, either integer or floating-point.
.IP [2]
As a boolean value, using any form understood by \fBstring is\fR
\fBboolean\fR.
.IP [3]
As a Tcl variable, using standard \fB$\fR notation.
The variable's value will be used as the operand.
As a variable, using standard \fB$\fR notation.
The value of the variable is then the value of the operand.
.IP [4]
As a string enclosed in double-quotes.
The expression parser will perform backslash, variable, and
command substitutions on the information between the quotes,
and use the resulting value as the operand
Backslash, variable, and command substitution are performed as described in
\fBTcl\fR.
.IP [5]
As a string enclosed in braces.
The characters between the open brace and matching close brace
will be used as the operand without any substitutions.
The operand is treated as a braced value as described in \fBTcl\fR.
.IP [6]
As a Tcl command enclosed in brackets.
The command will be executed and its result will be used as
the operand.
Command substitution is performed as described in \fBTcl\fR.
.IP [7]
As a mathematical function whose arguments have any of the above
forms for operands, such as \fBsin($x)\fR. See \fBMATH FUNCTIONS\fR below for
As a mathematical function such as \fBsin($x)\fR, whose arguments have any of the above
forms for operands. See \fBMATH FUNCTIONS\fR below for
a discussion of how mathematical functions are handled.
.PP
Where the above substitutions occur (e.g. inside quoted strings), they
are performed by the expression's instructions.
However, the command parser may already have performed one round of
substitution before the expression processor was called.
As discussed below, it is usually best to enclose expressions
in braces to prevent the command parser from performing substitutions
on the contents.
Because \fBexpr\fR parses and performs substitutions on values that have
already been parsed and substituted by \fBTcl\fR, it is usually best to enclose
expressions in braces to avoid the first round of substitutions by
\fBTcl\fR.
.PP
For some examples of simple expressions, suppose the variable
\fBa\fR has the value 3 and
the variable \fBb\fR has the value 6.
Then the command on the left side of each of the lines below
will produce the value on the right side of the line:
Below are some examples of simple expressions where the value of \fBa\fR is 3
and the value of \fBb\fR is 6. The command on the left side of each line
produces the value on the right side.
.PP
.CS
.ta 9c
.ta 6c
\fBexpr\fR 3.1 + $a \fI6.1\fR
\fBexpr\fR 2 + "$a.$b" \fI5.6\fR
\fBexpr\fR 4*[llength "6 2"] \fI8\fR
@@ -114,35 +105,41 @@ will produce the value on the right side of the line:
.CE
.SS OPERATORS
.PP
The valid operators (most of which are also available as commands in
the \fBtcl::mathop\fR namespace; see the \fBmathop\fR(n) manual page
for details) are listed below, grouped in decreasing order of precedence:
For operators having both a numeric mode and a string mode, the numeric mode is
chosen when all operands have a numeric interpretation. The integer
interpretation of an operand is preferred over the floating-point
interpretation. To ensure string operations on arbitrary values it is generally a
good idea to use \fBeq\fR, \fBne\fR, or the \fBstring\fR command instead of
more versatile operators such as \fB==\fR.
.PP
Unless otherwise specified, operators accept non-numeric operands. The value
of a boolean operation is 1 if true, 0 otherwise. See also \fBstring is\fR
\fBboolean\fR. The valid operators, most of which are also available as
commands in the \fBtcl::mathop\fR namespace (see \fBmathop\fR(n)), are listed
below, grouped in decreasing order of precedence:
.TP 20
\fB\-\0\0+\0\0~\0\0!\fR
.
Unary minus, unary plus, bit-wise NOT, logical NOT. None of these operators
may be applied to string operands, and bit-wise NOT may be
applied only to integers.
Unary minus, unary plus, bit-wise NOT, logical NOT. These operators
may only be applied to numeric operands, and bit-wise NOT may only be
applied to integers.
.TP 20
\fB**\fR
.
Exponentiation. Valid for any numeric operands. The maximum exponent value
that Tcl can handle if the first number is an integer > 1 is 268435455.
Exponentiation. Valid for numeric operands.
.TP 20
\fB*\0\0/\0\0%\fR
.
Multiply, divide, remainder. None of these operators may be
applied to string operands, and remainder may be applied only
to integers.
The remainder will always have the same sign as the divisor and
an absolute value smaller than the absolute value of the divisor.
Multiply and divide, which are valid for numeric operands, and remainder, which
is valid for integers. The remainder, an absolute value smaller than the
absolute value of the divisor, has the same sign as the divisor.
.RS
.PP
When applied to integers, the division and remainder operators can be
considered to partition the number line into a sequence of equal-sized
adjacent non-overlapping pieces where each piece is the size of the divisor;
the division result identifies which piece the divisor lay within, and the
remainder result identifies where within that piece the divisor lay. A
When applied to integers, division and remainder can be
considered to partition the number line into a sequence of
adjacent non-overlapping pieces, where each piece is the size of the divisor;
the quotient identifies which piece the dividend lies within, and the
remainder identifies where within that piece the dividend lies. A
consequence of this is that the result of
.QW "-57 \fB/\fR 10"
is always -6, and the result of
@@ -152,183 +149,157 @@ is always 3.
.TP 20
\fB+\0\0\-\fR
.
Add and subtract. Valid for any numeric operands.
Add and subtract. Valid for numeric operands.
.TP 20
\fB<<\0\0>>\fR
.
Left and right shift. Valid for integer operands only.
Left and right shift. Valid for integers.
A right shift always propagates the sign bit.
.TP 20
\fB<\0\0>\0\0<=\0\0>=\fR
.
Boolean less, greater, less than or equal, and greater than or equal.
Each operator produces 1 if the condition is true, 0 otherwise.
These operators may be applied to strings as well as numeric operands,
in which case string comparison is used.
Boolean less than, greater than, less than or equal, and greater than or equal.
.TP 20
\fB==\0\0!=\fR
.
Boolean equal and not equal. Each operator produces a zero/one result.
Valid for all operand types.
Boolean equal and not equal.
.TP 20
\fBeq\0\0ne\fR
.
Boolean string equal and string not equal. Each operator produces a
zero/one result. The operand types are interpreted only as strings.
Boolean string equal and string not equal.
.TP 20
\fBin\0\0ni\fR
.
List containment and negated list containment. Each operator produces
a zero/one result and treats its first argument as a string and its
second argument as a Tcl list. The \fBin\fR operator indicates
whether the first argument is a member of the second argument list;
the \fBni\fR operator inverts the sense of the result.
List containment and negated list containment. The first argument is
interpreted as a string, the second as a list. \fBin\fR tests for membership
in the list, and \fBni\fR is the inverse.
.TP 20
\fB&\fR
.
Bit-wise AND. Valid for integer operands only.
Bit-wise AND. Valid for integer operands.
.TP 20
\fB^\fR
.
Bit-wise exclusive OR. Valid for integer operands only.
Bit-wise exclusive OR. Valid for integer operands.
.TP 20
\fB|\fR
.
Bit-wise OR. Valid for integer operands only.
Bit-wise OR. Valid for integer operands.
.TP 20
\fB&&\fR
.
Logical AND. Produces a 1 result if both operands are non-zero,
0 otherwise.
Valid for boolean and numeric (integers or floating-point) operands only.
This operator evaluates lazily; it only evaluates its second operand if it
must in order to determine its result.
Logical AND. If both operands are true, the result is 1, or 0 otherwise.
.TP 20
\fB||\fR
.
Logical OR. Produces a 0 result if both operands are zero, 1 otherwise.
Valid for boolean and numeric (integers or floating-point) operands only.
This operator evaluates lazily; it only evaluates its second operand if it
must in order to determine its result.
Logical OR. If both operands are false, the result is 0, or 1 otherwise.
.TP 20
\fIx \fB?\fI y \fB:\fI z\fR
\fIx\fB?\fIy\fB:\fIz\fR
.
If-then-else, as in C. If \fIx\fR
evaluates to non-zero, then the result is the value of \fIy\fR.
Otherwise the result is the value of \fIz\fR.
The \fIx\fR operand must have a boolean or numeric value.
This operator evaluates lazily; it evaluates only one of \fIy\fR or \fIz\fR.
.PP
See the C manual for more details on the results
produced by each operator.
The exponentiation operator promotes types like the multiply and
divide operators, and produces a result that is the same as the output
of the \fBpow\fR function (after any type conversions.)
All of the binary operators but exponentiation group left-to-right
within the same precedence level; exponentiation groups right-to-left. For example, the command
If-then-else, as in C. If \fIx\fR is false , the result is the value of
\fIy\fR. Otherwise the result is the value of \fIz\fR.
.PP
The exponentiation operator promotes types in the same way that the multiply
and divide operators do, and the result is is the same as the result of
\fBpow\fR.
Exponentiation groups right-to-left within a precedence level. Other binary
operators group left-to-right. For example, the value of
.PP
.CS
\fBexpr\fR {4*2 < 7}
.CE
.PP
returns 0, while
is 0, while the value of
.PP
.CS
\fBexpr\fR {2**3**2}
.CE
.PP
returns 512.
is 512.
.PP
The \fB&&\fR, \fB||\fR, and \fB?:\fR operators have
As in C, \fB&&\fR, \fB||\fR, and \fB?:\fR feature
.QW "lazy evaluation" ,
just as in C, which means that operands are not evaluated if they are
not needed to determine the outcome. For example, in the command
which means that operands are not evaluated if they are
not needed to determine the outcome. For example, in
.PP
.CS
\fBexpr\fR {$v ? [a] : [b]}
.CE
.PP
only one of
.QW \fB[a]\fR
or
.QW \fB[b]\fR
will actually be evaluated,
depending on the value of \fB$v\fR. Note, however, that this is
only true if the entire expression is enclosed in braces; otherwise
the Tcl parser will evaluate both
.QW \fB[a]\fR
and
.QW \fB[b]\fR
before invoking the \fBexpr\fR command.
only one of \fB[a]\fR or \fB[b]\fR is evaluated,
depending on the value of \fB$v\fR. This is not true of the normal Tcl parser,
so it is normally recommended to enclose the arguments to \fBexpr\fR in braces.
Without braces, as in
\fBexpr\fR $v ? [a] : [b]
both \fB[a]\fR and \fB[b]\fR are evaluated before \fBexpr\fR is even called.
.PP
For more details on the results
produced by each operator, see the documentation for C.
.SS "MATH FUNCTIONS"
.PP
When the expression parser encounters a mathematical function
such as \fBsin($x)\fR, it replaces it with a call to an ordinary
Tcl command in the \fBtcl::mathfunc\fR namespace. The processing
of an expression such as:
A mathematical function such as \fBsin($x)\fR is replaced with a call to an ordinary
Tcl command in the \fBtcl::mathfunc\fR namespace. The evaluation
of an expression such as
.PP
.CS
\fBexpr\fR {sin($x+$y)}
.CE
.PP
is the same in every way as the processing of:
is the same in every way as the evaluation of
.PP
.CS
\fBexpr\fR {[tcl::mathfunc::sin [\fBexpr\fR {$x+$y}]]}
.CE
.PP
which in turn is the same as the processing of:
which in turn is the same as the evaluation of
.PP
.CS
tcl::mathfunc::sin [\fBexpr\fR {$x+$y}]
.CE
.PP
The executor will search for \fBtcl::mathfunc::sin\fR using the usual
rules for resolving functions in namespaces. Either
\fB::tcl::mathfunc::sin\fR or \fB[namespace
current]::tcl::mathfunc::sin\fR will satisfy the request, and others
may as well (depending on the current \fBnamespace path\fR setting).
\fBtcl::mathfunc::sin\fR is resolved as described in
\fBNAMESPACE RESOLUTION\fR in the \fBnamespace\fR(n) documentation. Given the
default value of \fBnamespace path\fR, \fB[namespace
current]::tcl::mathfunc::sin\fR or \fB::tcl::mathfunc::sin\fR are the typical
resolutions.
.PP
Some mathematical functions have several arguments, separated by commas like in C. Thus:
As in C, a mathematical function may accept multiple arguments separated by commas. Thus,
.PP
.CS
\fBexpr\fR {hypot($x,$y)}
.CE
.PP
ends up as
becomes
.PP
.CS
tcl::mathfunc::hypot $x $y
.CE
.PP
See the \fBmathfunc\fR(n) manual page for the math functions that are
See the \fBmathfunc\fR(n) documentation for the math functions that are
available by default.
.SS "TYPES, OVERFLOW, AND PRECISION"
.PP
All internal computations involving integers are done calling on the
LibTomMath multiple precision integer library as required so that all
integer calculations are performed exactly. Note that in Tcl releases
prior to 8.5, integer calculations were performed with one of the C types
When needed to guarantee exact performance, internal computations involving
integers use the LibTomMath multiple precision integer library. In Tcl releases
prior to 8.5, integer calculations were performed using one of the C types
\fIlong int\fR or \fITcl_WideInt\fR, causing implicit range truncation
in those calculations where values overflowed the range of those types.
Any code that relied on these implicit truncations will need to explicitly
add \fBint()\fR or \fBwide()\fR function calls to expressions at the points
where such truncation is required to take place.
Any code that relied on these implicit truncations should instead call
\fBint()\fR or \fBwide()\fR, which do truncate.
.PP
All internal computations involving floating-point are
done with the C type \fIdouble\fR.
When converting a string to floating-point, exponent overflow is
Internal floating-point computations are
performed using the \fIdouble\fR C type.
When converting a string to floating-point value, exponent overflow is
detected and results in the \fIdouble\fR value of \fBInf\fR or
\fB\-Inf\fR as appropriate. Floating-point overflow and underflow
are detected to the degree supported by the hardware, which is generally
pretty reliable.
fairly reliable.
.PP
Conversion among internal representations for integer, floating-point,
and string operands is done automatically as needed.
For arithmetic computations, integers are used until some
floating-point number is introduced, after which floating-point is used.
For example,
Conversion among internal representations for integer, floating-point, and
string operands is done automatically as needed. For arithmetic computations,
integers are used until some floating-point number is introduced, after which
floating-point values are used. For example,
.PP
.CS
\fBexpr\fR {5 / 4}
@@ -342,98 +313,61 @@ returns 1, while
.CE
.PP
both return 1.25.
Floating-point values are always returned with a
A floating-point result can be distinguished from an integer result by the
presence of either
.QW \fB.\fR
or an
or
.QW \fBe\fR
so that they will not look like integer values. For example,
.PP
. For example,
.PP
.CS
\fBexpr\fR {20.0/5.0}
.CE
.PP
returns \fB4.0\fR, not \fB4\fR.
.SS "STRING OPERATIONS"
.PP
String values may be used as operands of the comparison operators,
although the expression evaluator tries to do comparisons as integer
or floating-point when it can,
i.e., when all arguments to the operator allow numeric interpretations,
except in the case of the \fBeq\fR and \fBne\fR operators.
If one of the operands of a comparison is a string and the other
has a numeric value, a canonical string representation of the numeric
operand value is generated to compare with the string operand.
Canonical string representation for integer values is a decimal string
format. Canonical string representation for floating-point values
is that produced by the \fB%g\fR format specifier of Tcl's
\fBformat\fR command. For example, the commands
.PP
.CS
\fBexpr\fR {"0x03" > "2"}
\fBexpr\fR {"0y" > "0x12"}
.CE
.PP
both return 1. The first comparison is done using integer
comparison, and the second is done using string comparison.
Because of Tcl's tendency to treat values as numbers whenever
possible, it is not generally a good idea to use operators like \fB==\fR
when you really want string comparison and the values of the
operands could be arbitrary; it is better in these cases to use
the \fBeq\fR or \fBne\fR operators, or the \fBstring\fR command instead.
.SH "PERFORMANCE CONSIDERATIONS"
.PP
Enclose expressions in braces for the best speed and the smallest
storage requirements.
This allows the Tcl bytecode compiler to generate the best code.
.PP
As mentioned above, expressions are substituted twice:
once by the Tcl parser and once by the \fBexpr\fR command.
For example, the commands
Where an expression contains syntax that Tcl would otherwise perform
substitutions on, enclosing an expression in braces or otherwise quoting it
so that it's a static value allows the Tcl compiler to generate bytecode for
the expression, resulting in better speed and smaller storage requirements.
This also avoids issues that can arise if Tcl is allowed to perform
substitution on the value before \fBexpr\fR is called.
.PP
In the following example, the value of the expression is 11 because the Tcl parser first
substitutes \fB$b\fR and \fBexpr\fR then substitutes \fB$a\fR. Enclosing the
expression in braces would result in a syntax error.
.CS
set a 3
set b {$a + 2}
\fBexpr\fR $b*4
.CE
.PP
return 11, not a multiple of 4.
This is because the Tcl parser will first substitute
.QW "\fB$a + 2\fR"
for the variable \fBb\fR,
then the \fBexpr\fR command will evaluate the expression
.QW "\fB$a + 2*4\fR" .
.PP
Most expressions do not require a second round of substitutions.
Either they are enclosed in braces or, if not,
their variable and command substitutions yield numbers or strings
that do not themselves require substitutions.
However, because a few unbraced expressions
need two rounds of substitutions,
the bytecode compiler must emit
additional instructions to handle this situation.
The most expensive code is required for
unbraced expressions that contain command substitutions.
These expressions must be implemented by generating new code
each time the expression is executed.
.PP
If it is necessary to include a non-constant expression string within the
wider context of an otherwise-constant expression, the most efficient
technique is to put the varying part inside a recursive \fBexpr\fR, as this at
least allows for the compilation of the outer part, though it does mean that
the varying part must itself be evaluated as a separate expression. Thus, in
this example the result is 20 and the outer expression benefits from fully
cached bytecode compilation.
When an expression is generated at runtime, like the one above is, the bytcode
compiler must ensure that new code is generated each time the expression
is evaluated. This is the most costly kind of expression from a performance
perspective. In such cases, consider directly using the commands described in
the \fBmathfunc\fR(n) or \fBmathop\fR(n) documentation instead of \fBexpr\fR.
Most expressions are not formed at runtime, but are literal strings or contain
substitutions that don't introduce other substitutions. To allow the bytecode
compiler to work with an expression as a string literal at compilation time,
ensure that it contains no substitutions or that it is enclosed in braces or
otherwise quoted to prevent Tcl from performing substitutions, allowing
\fBexpr\fR to perform them instead.
.SH EXAMPLES
.PP
A numeric comparison whose result is 1:
.CS
set a 3
set b {$a + 2}
\fBexpr\fR {[\fBexpr\fR $b] * 4}
\fBexpr\fR {"0x03" > "2"}
.CE
.PP
When the expression is unbraced to allow the substitution of a function or
operator, consider using the commands documented in the \fBmathfunc\fR(n) or
\fBmathop\fR(n) manual pages directly instead.
.SH EXAMPLES
A string comparison whose result is 1:
.CS
\fBexpr\fR {"0y" > "0x12"}
.CE
.PP
Define a procedure that computes an
.QW interesting
@@ -468,8 +402,8 @@ each other:
puts "a and b are [\fBexpr\fR {$a eq $b ? {equal} : {different}}]"
.CE
.PP
Set a variable to whether an environment variable is both defined at
all and also set to a true boolean value:
Set a variable indicating whether an environment variable is defined and has
value of true:
.PP
.CS
set isTrue [\fBexpr\fR {
+1 -1
View File
@@ -1,4 +1,4 @@
'\"
'\"
'\" Copyright (c) 1996 Sun Microsystems, Inc.
'\"
'\" See the file "license.terms" for information on usage and redistribution
+1 -1
View File
@@ -390,7 +390,7 @@ that use the third component do not attempt to perform tilde
substitution.
.RE
.TP
\fBfile stat \fIname varName\fR
\fBfile stat \fIname varName\fR
.
Invokes the \fBstat\fR kernel call on \fIname\fR, and uses the variable
given by \fIvarName\fR to hold information returned from the kernel call.
+1 -1
View File
@@ -4,7 +4,7 @@
'\"
'\" See the file "license.terms" for information on usage and redistribution
'\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
'\"
'\"
.TH flush n 7.5 Tcl "Tcl Built-In Commands"
.so man.macros
.BS
+1 -1
View File
@@ -4,7 +4,7 @@
'\"
'\" See the file "license.terms" for information on usage and redistribution
'\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
'\"
'\"
.TH foreach n "" Tcl "Tcl Built-In Commands"
.so man.macros
.BS
+22 -7
View File
@@ -83,12 +83,15 @@ Specifies that the number should be padded on the left with
zeroes instead of spaces.
.TP 10
\fB#\fR
Requests an alternate output form. For \fBo\fR
conversions it guarantees that the first digit is always \fB0\fR.
For \fBx\fR or \fBX\fR conversions, \fB0x\fR or \fB0X\fR (respectively)
Requests an alternate output form. For \fBo\fR conversions,
\fB0o\fR will be added to the beginning of the result unless
it is zero. For \fBx\fR or \fBX\fR conversions, \fB0x\fR
will be added to the beginning of the result unless it is zero.
For \fBb\fR conversions, \fB0b\fR
will be added to the beginning of the result unless it is zero.
For \fBd\fR conversions, \fB0d\fR there is no effect unless
the \fB0\fR specifier is used as well: In that case, \fB0d\fR
will be added to the beginning.
For all floating-point conversions (\fBe\fR, \fBE\fR, \fBf\fR,
\fBg\fR, and \fBG\fR) it guarantees that the result always
has a decimal point.
@@ -130,7 +133,7 @@ it must be a numeric string.
.SS "OPTIONAL SIZE MODIFIER"
.PP
The fifth part of a conversion specifier is a size modifier,
which must be \fBll\fR, \fBh\fR, or \fBl\fR.
which must be \fBll\fR, \fBh\fR, \fBl\fR, or \fBL\fR.
If it is \fBll\fR it specifies that an integer value is taken
without truncation for conversion to a formatted substring.
If it is \fBh\fR it specifies that an integer value is
@@ -138,7 +141,9 @@ truncated to a 16-bit range before converting. This option is rarely useful.
If it is \fBl\fR it specifies that the integer value is
truncated to the same range as that produced by the \fBwide()\fR
function of the \fBexpr\fR command (at least a 64-bit range).
If neither \fBh\fR nor \fBl\fR are present, the integer value is
If it is \fBL\fR it specifies that an integer or double value is taken
without truncation for conversion to a formatted substring.
If neither \fBh\fR nor \fBl\fR nor \fBL\fR are present, the integer value is
truncated to the same range as that produced by the \fBint()\fR
function of the \fBexpr\fR command (at least a 32-bit range, but
determined by the value of the \fBwordSize\fR element of the
@@ -198,8 +203,19 @@ precision, then convert number as for \fB%e\fR or
Otherwise convert as for \fB%f\fR.
Trailing zeroes and a trailing decimal point are omitted.
.TP 10
\fBa\fR or \fBA\fR
Convert double to hexadecimal notation in the form
\fI0x1.yyy\fBp\(+-\fIzz\fR, where the number of \fIy\fR's is
determined by the precision (default: 13).
If the \fBA\fR form is used then the hex characters
are printed in uppercase.
.TP 10
\fB%\fR
No conversion: just insert \fB%\fR.
.TP 10
\fBp\fR
Shorthand form for \fB0x%zx\fR, so it outputs the integer in
hexadecimal form with \fB0x\fR prefix.
.SH "DIFFERENCES FROM ANSI SPRINTF"
.PP
The behavior of the format command is the same as the
@@ -208,13 +224,12 @@ differences:
.IP [1]
Tcl guarantees that it will be working with UNICODE characters.
.IP [2]
\fB%p\fR and \fB%n\fR specifiers are not supported.
\fB%n\fR specifier is not supported.
.IP [3]
For \fB%c\fR conversions the argument must be an integer value,
which will then be converted to the corresponding character value.
.IP [4]
The size modifiers are ignored when formatting floating-point values.
The \fBll\fR modifier has no \fBsprintf\fR counterpart.
The \fBb\fR specifier has no \fBsprintf\fR counterpart.
.SH EXAMPLES
.PP
+1 -1
View File
@@ -4,7 +4,7 @@
'\"
'\" See the file "license.terms" for information on usage and redistribution
'\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
'\"
'\"
.TH gets n 7.5 Tcl "Tcl Built-In Commands"
.so man.macros
.BS
+1 -1
View File
@@ -4,7 +4,7 @@
'\"
'\" See the file "license.terms" for information on usage and redistribution
'\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
'\"
'\"
.TH history n "" Tcl "Tcl Built-In Commands"
.so man.macros
.BS
+9 -177
View File
@@ -6,14 +6,14 @@
'\" See the file "license.terms" for information on usage and redistribution
'\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
'\"
.TH "http" n 2.9 http "Tcl Bundled Packages"
.TH "http" n 2.7 http "Tcl Bundled Packages"
.so man.macros
.BS
'\" Note: do not modify the .SH NAME line immediately below!
.SH NAME
http \- Client-side implementation of the HTTP/1.1 protocol
.SH SYNOPSIS
\fBpackage require http ?2.8?\fR
\fBpackage require http ?2.7?\fR
.\" See Also -useragent option documentation in body!
.sp
\fB::http::config ?\fI\-option value\fR ...?
@@ -22,8 +22,6 @@ http \- Client-side implementation of the HTTP/1.1 protocol
.sp
\fB::http::formatQuery\fR \fIkey value\fR ?\fIkey value\fR ...?
.sp
\fB::http::quoteString\fR \fIvalue\fR
.sp
\fB::http::reset\fR \fItoken\fR ?\fIwhy\fR?
.sp
\fB::http::wait \fItoken\fR
@@ -46,14 +44,12 @@ http \- Client-side implementation of the HTTP/1.1 protocol
.sp
\fB::http::register \fIproto port command\fR
.sp
\fB::http::registerError \fIport\fR ?\fImessage\fR?
.sp
\fB::http::unregister \fIproto\fR
.BE
.SH DESCRIPTION
.PP
The \fBhttp\fR package provides the client side of the HTTP/1.1
protocol, as defined in RFC 7230 to RFC 7235, which supersede RFC 2616.
protocol, as defined in RFC 2616.
The package implements the GET, POST, and HEAD operations
of HTTP/1.1. It allows configuration of a proxy host to get through
firewalls. The package is compatible with the \fBSafesock\fR security
@@ -99,19 +95,6 @@ comma-separated list of mime type patterns that you are
willing to receive. For example,
.QW "image/gif, image/jpeg, text/*" .
.TP
\fB\-pipeline\fR \fIboolean\fR
.
Specifies whether HTTP/1.1 transactions on a persistent socket will be
pipelined. See the \fBPERSISTENT SOCKETS\fR section for details. The default
is 1.
.TP
\fB\-postfresh\fR \fIboolean\fR
.
Specifies whether requests that use the \fBPOST\fR method will always use a
fresh socket, overriding the \fB-keepalive\fR option of
command \fBhttp::geturl\fR. See the \fBPERSISTENT SOCKETS\fR section for details.
The default is 0.
.TP
\fB\-proxyhost\fR \fIhostname\fR
.
The name of the proxy host, if any. If this value is the
@@ -133,47 +116,20 @@ an empty list. The default filter returns the values of the
\fB\-proxyhost\fR and \fB\-proxyport\fR settings if they are
non-empty.
.TP
\fB\-repost\fR \fIboolean\fR
.
Specifies what to do if a POST request over a persistent connection fails
because the server has half-closed the connection. If boolean \fBtrue\fR, the
request
will be automatically retried; if boolean \fBfalse\fR it will not, and the
application
that uses \fBhttp::geturl\fR is expected to seek user confirmation before
retrying the POST. The value \fBtrue\fR should be used only under certain
conditions. See the \fBPERSISTENT SOCKETS\fR section for details. The
default is 0.
.TP
\fB\-urlencoding\fR \fIencoding\fR
.
The \fIencoding\fR used for creating the x-url-encoded URLs with
\fB::http::formatQuery\fR and \fB::http::quoteString\fR.
The default is \fButf-8\fR, as specified by RFC
\fB::http::formatQuery\fR. The default is \fButf-8\fR, as specified by RFC
2718. Prior to http 2.5 this was unspecified, and that behavior can be
returned by specifying the empty string (\fB{}\fR), although
\fIiso8859-1\fR is recommended to restore similar behavior but without the
\fB::http::formatQuery\fR or \fB::http::quoteString\fR
throwing an error processing non-latin-1 characters.
\fB::http::formatQuery\fR throwing an error processing non-latin-1
characters.
.TP
\fB\-useragent\fR \fIstring\fR
.
The value of the User-Agent header in the HTTP request. In an unsafe
interpreter, the default value depends upon the operating system, and
the version numbers of \fBhttp\fR and \fBTcl\fR, and is (for example)
.QW "\fBMozilla/5.0 (Windows; U; Windows NT 10.0) http/2.8.12 Tcl/8.6.8\fR" .
A safe interpreter cannot determine its operating system, and so the default
in a safe interpreter is to use a Windows 10 value with the current version
numbers of \fBhttp\fR and \fBTcl\fR.
.TP
\fB\-zip\fR \fIboolean\fR
.
If the value is boolean \fBtrue\fR, then by default requests will send a header
.QW "\fBAccept-Encoding: gzip,deflate,compress\fR" .
If the value is boolean \fBfalse\fR, then by default this header will not be sent.
In either case the default can be overridden for an individual request by
supplying a custom \fBAccept-Encoding\fR header in the \fB-headers\fR option
of \fBhttp::geturl\fR. The default is 1.
The value of the User-Agent header in the HTTP request. The default is
.QW "\fBTcl http client package 2.7\fR" .
.RE
.TP
\fB::http::geturl\fR \fIurl\fR ?\fIoptions\fR?
@@ -271,7 +227,7 @@ Pragma: no-cache
.TP
\fB\-keepalive\fR \fIboolean\fR
.
If boolean \fBtrue\fR, attempt to keep the connection open for servicing
If true, attempt to keep the connection open for servicing
multiple requests. Default is 0.
.TP
\fB\-method\fR \fItype\fR
@@ -378,11 +334,6 @@ encodes the keys and values, and generates one string that has the
proper & and = separators. The result is suitable for the
\fB\-query\fR value passed to \fB::http::geturl\fR.
.TP
\fB::http::quoteString\fR \fIvalue\fR
.
This procedure does x-url-encoding of string. It takes a single argument and
encodes it.
.TP
\fB::http::reset\fR \fItoken\fR ?\fIwhy\fR?
.
This command resets the HTTP transaction identified by \fItoken\fR, if any.
@@ -464,17 +415,6 @@ set token [::http::geturl https://my.secure.site/]
.CE
.RE
.TP
\fB::http::registerError\fR \fIport\fR ?\fImessage\fR?
.
This procedure allows a registered protocol handler to deliver an error
message for use by \fBhttp\fR. Calling this command does not raise an
error. The command is useful when a registered protocol detects an problem
(for example, an invalid TLS certificate) that will cause an error to
propagate to \fBhttp\fR. The command allows \fBhttp\fR to provide a
precise error message rather than a general one. The command returns the
value provided by the last call with argument \fImessage\fR, or the empty
string if no such call has been made.
.TP
\fB::http::unregister\fR \fIproto\fR
.
This procedure unregisters a protocol handler that was previously
@@ -564,14 +504,6 @@ The following elements of
the array are supported:
.RS
.TP
\fBbinary\fR
.
This is boolean \fBtrue\fR if (after decoding any compression specified
by the
.QW "Content-Encoding"
response header) the HTTP response is binary. It is boolean \fBfalse\fR
if the HTTP response is text.
.TP
\fBbody\fR
.
The contents of the URL. This will be empty if the \fB\-channel\fR
@@ -670,106 +602,6 @@ A copy of the \fBContent-Type\fR meta-data value.
.
The requested URL.
.RE
.SH "PERSISTENT CONNECTIONS"
.PP
.SS "BASICS"
.PP
See RFC 7230 Sec 6, which supersedes RFC 2616 Sec 8.1.
.PP
A persistent connection allows multiple HTTP/1.1 transactions to be
carried over the same TCP connection. Pipelining allows a
client to make multiple requests over a persistent connection without
waiting for each response. The server sends responses in the same order
that the requests were received.
.PP
If a POST request fails to complete, typically user confirmation is
needed before sending the request again. The user may wish to verify
whether the server was modified by the failed POST request, before
sending the same request again.
.PP
A HTTP request will use a persistent socket if the call to
\fBhttp::geturl\fR has the option \fB-keepalive true\fR. It will use
pipelining where permitted if the \fBhttp::config\fR option
\fB-pipeline\fR is boolean \fBtrue\fR (its default value).
.PP
The http package maintains no more than one persistent connection to each
server (i.e. each value of
.QW "domain:port" ).
If \fBhttp::geturl\fR is called to make a request over a persistent
connection while the connection is busy with another request, the new
request will be held in a queue until the connection is free.
.PP
The http package does not support HTTP/1.0 persistent connections
controlled by the \fBKeep-Alive\fR header.
.SS "SPECIAL CASES"
.PP
This subsection discusses issues related to closure of the
persistent connection by the server, automatic retry of failed requests,
the special treatment necessary for POST requests, and the options for
dealing with these cases.
.PP
In accordance with RFC 7230, \fBhttp::geturl\fR does not pipeline
requests that use the POST method. If a POST uses a persistent
connection and is not the first request on that connection,
\fBhttp::geturl\fR waits until it has received the response for the previous
request; or (if \fBhttp::config\fR option \fB-postfresh\fR is boolean \fBtrue\fR) it
uses a new connection for each POST.
.PP
If the server is processing a number of pipelined requests, and sends a
response header
.QW "\fBConnection: close\fR"
with one of the responses (other than the last), then subsequent responses
are unfulfilled. \fBhttp::geturl\fR will send the unfulfilled requests again
over a new connection.
.PP
A difficulty arises when a HTTP client sends a request over a persistent
connection that has been idle for a while. The HTTP server may
half-close an apparently idle connection while the client is sending a
request, but before the request arrives at the server: in this case (an
.QW "asynchronous close event" )
the request will fail. The difficulty arises because the client cannot
be certain whether the POST modified the state of the server. For HEAD or
GET requests, \fBhttp::geturl\fR opens another connection and retransmits
the failed request. However, if the request was a POST, RFC 7230 forbids
automatic retry by default, suggesting either user confirmation, or
confirmation by user-agent software that has semantic understanding of
the application. The \fBhttp::config\fR option \fB-repost\fR allows for
either possibility.
.PP
Asynchronous close events can occur only in a short interval of time. The
\fBhttp\fR package monitors each persistent connection for closure by the
server. Upon detection, the connection is also closed at the client end,
and subsequent requests will use a fresh connection.
.PP
If the \fBhttp::geturl\fR command is called with option \fB-keepalive true\fR,
then it will both try to use an existing persistent connection
(if one is available), and it will send the server a
.QW "\fBConnection: keep-alive\fR"
request header asking to keep the connection open for future requests.
.PP
The \fBhttp::config\fR options \fB-pipeline\fR, \fB-postfresh\fR, and
\fB-repost\fR relate to persistent connections.
.PP
Option \fB-pipeline\fR, if boolean \fBtrue\fR, will pipeline GET and HEAD requests
made
over a persistent connection. POST requests will not be pipelined - if the
POST is not the first transaction on the connection, its request will not
be sent until the previous response has finished. GET and HEAD requests
made after a POST will not be sent until the POST response has been
delivered, and will not be sent if the POST fails.
.PP
Option \fB-postfresh\fR, if boolean \fBtrue\fR, will override the \fBhttp::geturl\fR option
\fB-keepalive\fR, and always open a fresh connection for a POST request.
.PP
Option \fB-repost\fR, if \fBtrue\fR, permits automatic retry of a POST request
that fails because it uses a persistent connection that the server has
half-closed (an
.QW "asynchronous close event" ).
Subsequent GET and HEAD requests in a failed pipeline will also be retried.
\fIThe -repost option should be used only if the application understands
that the retry is appropriate\fR - specifically, the application must know
that if the failed POST successfully modified the state of the server, a repeat POST
would have no adverse effect.
.SH EXAMPLE
.PP
This example creates a procedure to copy a URL to a file while printing a
+1 -1
View File
@@ -4,7 +4,7 @@
'\"
'\" See the file "license.terms" for information on usage and redistribution
'\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
'\"
'\"
.TH if n "" Tcl "Tcl Built-In Commands"
.so man.macros
.BS
+1 -1
View File
@@ -4,7 +4,7 @@
'\"
'\" See the file "license.terms" for information on usage and redistribution
'\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
'\"
'\"
.TH incr n "" Tcl "Tcl Built-In Commands"
.so man.macros
.BS
+5 -4
View File
@@ -7,7 +7,7 @@
'\"
'\" See the file "license.terms" for information on usage and redistribution
'\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
'\"
'\"
.TH info n 8.4 Tcl "Tcl Built-In Commands"
.so man.macros
.BS
@@ -297,10 +297,11 @@ scripts are stored.
This is actually the value of the \fBtcl_library\fR
variable and may be changed by setting \fBtcl_library\fR.
.TP
\fBinfo loaded \fR?\fIinterp\fR?
\fBinfo loaded \fR?\fIinterp\fR? ?\fIpackage\fR?
.
Returns a list describing all of the packages that have been loaded into
\fIinterp\fR with the \fBload\fR command.
Returns the filename loaded as part of \fIpackage\fR. If \fIpackage\fR
is not specified, returns a list describing all of the packages
that have been loaded into \fIinterp\fR with the \fBload\fR command.
Each list element is a sub-list with two elements consisting of the
name of the file from which the package was loaded and the name of
the package.
+2 -2
View File
@@ -5,7 +5,7 @@
'\"
'\" See the file "license.terms" for information on usage and redistribution
'\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
'\"
'\"
.TH interp n 8.6 Tcl "Tcl Built-In Commands"
.so man.macros
.BS
@@ -201,7 +201,7 @@ slave interpreter identified by \fIpath\fR. If no arguments are
given, option and current setting are returned. If \fB\-frame\fR
is given, the debug setting is set to the given boolean if provided
and the current setting is returned.
This only affects the output of \fBinfo frame\fR, in that exact
This only effects the output of \fBinfo frame\fR, in that exact
frame-level information for command invocation at the bytecode level
is only captured with this setting on.
.RS
+1 -1
View File
@@ -4,7 +4,7 @@
'\"
'\" See the file "license.terms" for information on usage and redistribution
'\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
'\"
'\"
.TH join n "" Tcl "Tcl Built-In Commands"
.so man.macros
.BS
+1 -1
View File
@@ -5,7 +5,7 @@
'\"
'\" See the file "license.terms" for information on usage and redistribution
'\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
'\"
'\"
.TH lappend n "" Tcl "Tcl Built-In Commands"
.so man.macros
.BS
+1 -1
View File
@@ -4,7 +4,7 @@
'\"
'\" See the file "license.terms" for information on usage and redistribution
'\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
'\"
'\"
.TH lassign n 8.5 Tcl "Tcl Built-In Commands"
.so man.macros
.BS

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