Fix the generated copyright sections in the HTML help file.

a few test & docs fixes
[db0a5f6417] Make a few tests resilient to differences in semantics of pipes between OSs.
2016-11-02 01:42:49 +00:00 · 2016-07-26 13:54:57 +00:00 · 2016-07-26 10:08:29 +00:00 · 2016-07-24 13:09:40 +00:00 · 2016-07-24 12:45:07 +00:00 · 2016-07-22 15:28:50 +00:00
530 changed files with 22028 additions and 15479 deletions
@@ -0,0 +1,10 @@
+tools/tcl.hpj.in
+tools/tcl.wse.in
+win/buildall.vc.bat
+win/coffbase.txt
+win/makefile.bc
+win/makefile.vc
+win/rules.vc
+win/tcl.dsp
+win/tcl.dsw
+win/tcl.hpj.in
@@ -0,0 +1,10 @@
+tools/tcl.hpj.in
+tools/tcl.wse.in
+win/buildall.vc.bat
+win/coffbase.txt
+win/makefile.bc
+win/makefile.vc
+win/rules.vc
+win/tcl.dsp
+win/tcl.dsw
+win/tcl.hpj.in
@@ -913,6 +913,14 @@ a better first place to look now.
 	* win/nmakehlp.c: Let "nmakehlp -V" start searching digits after the
 	found match (suggested by Harald Oehlmann).

+2012-09-19  Harald Oehlmann  <oehhar@users.sf.net>
+
+	IMPLEMENTATION OF TIP#412.
+
+	* library/msgcat/msgcat.tcl:	dynamic locale change with mc file
+	* library/clock.tcl:            load on locale change.
+	clock uses new msgcat features.
+
 2012-09-07  Harald Oehlmann  <oehhar@users.sf.net>

 	*** 8.6b3 TAGGED FOR RELEASE ***
@@ -1,5 +1,5 @@
 README:  Tcl
-    This is the Tcl 8.6.2 source distribution.
+    This is the Tcl 8.6.6 source distribution.
 	http://sourceforge.net/projects/tcl/files/Tcl/
    You can get any source release of Tcl from the URL above.

@@ -8303,11 +8303,11 @@ reported usage of large expressions (porter)

 Many optmizations, improvements, and tightened stack management in bytecode.

--- Released 8.6.1, September 20, 2013 --- http://core.tcl.tk/tcl/ for details 
+--- Released 8.6.1, September 20, 2013 --- http://core.tcl.tk/tcl/ for details

 2013-09-27 (enhancement) improved ::env synchronization (fellows)

-2013-10-20 (bug fix)[2835313] segfault from 
+2013-10-20 (bug fix)[2835313] segfault from
 [apply {{} {while 1 {a {*}[return -level 0 -code continue]}}}] (fellows)

 2013-10-22 (bug fix)[3556215] [scan %E%G%X] support (fellows)
@@ -8451,4 +8451,250 @@ include ::oo::class (fellows)

 2014-08-25 (TIP 429) New command [string cat] (leitgeb,ferrieux)

--- Released 8.6.2, August 27, 2014 --- http://core.tcl.tk/tcl/ for details 
+--- Released 8.6.2, August 27, 2014 --- http://core.tcl.tk/tcl/ for details
+
+2014-08-28 (bug)[b9e1a3] Correct Method Search Order (nadkarni,fellows)
+=> TclOO 1.0.3
+        *** POTENTIAL INCOMPATIBILITY ***
+
+2014-09-05 (bug)[ccc2c2] Regression [lreplace {} 1 1] (bron,fellows)
+
+2014-09-08 (bug)<oo-1.18.2> Crash regression in [oo::class destroy] (porter)
+
+2014-09-09 (bug)[84af11] Regress [regsub -all {\(.*} a(b) {}] (fellows)
+
+2014-09-10 (bug)[cee90e] [try {} on ok {} - on return {} {}] panic (porter)
+
+2014-09-20 (feature) [tcl::unsupported::getbytecode] disassember (fellows)
+
+2014-09-27 (enhancement) [string cat] bytecode optimization (leitgeb,ferrieux)
+
+2014-09-27 (bug)[82521b] segfault in mangled bytecode (ogilvie,sofer)
+
+2014-10-02 (bug)[bc5b79] Hang in some [read]s of limited size (rogers,porter)
+
+2014-10-03 (bug)[bc1a96] segfault in [array set] of traced array (tab,porter)
+
+2014-10-08 (bug)[59a2e7] MSVC14 compile support (dower,nijtmans)
+
+2014-10-10 (bug)[ed29c4] [fcopy] treats [blocked] as error (rowen,porter)
+
+2014-10-10 (bug)[bf7135] regression in Tcl_Write() interface (porter)
+
+2014-10-18 (bug)[10dc6d] fix [gets] on non-blocking channels (fassel,porter)
+
+2014-10-26 Support for Windows 10 (nijtmans)
+
+2014-10-31 (bug)[dcc034] restore [open comX: r+] (lll,nijtmans)
+
+2014-11-05 (bug)[214cc0] Restore [lappend v] return value (sayers,porter)
+
+2014-11-06 (bug)[5adc35] Stop forcing EOF to be permanent (porter)
+
+--- Released 8.6.3, November 12, 2014 --- http://core.tcl.tk/tcl/ for details
+
+2014-11-21 (bug)[743338] Win: socket error encoding (ladayaroslav,nijtmans)
+
+2014-12-01 (bug) restore tbcload/tclcompiler support (kupries)
+
+2014-12-03 (bug)[0c043a] Fix compiled [set var($) val] (porter)
+
+2014-12-04 (bug)[d2ffcc] Limit $... and bareword parsing to ASCII (ladayaroslav,porter)
+        *** POTENTIAL INCOMPATIBILITY ***
+
+2014-12-06 (bug)[c6cd4a] Win: hang in async socket connection (shults,nadkarni)
+
+2014-12-10 tzdata updated to Olson's tzdata2014j (venkat)
+
+2014-12-13 fix header files installation on OS X (houben)
+
+2014-12-17 (TIP 427) [fconfigure $h -connecting, -peername, -sockname] (oehlmann,rmax)
+
+2014-12-18 (bug)[af08c8] Crash in full finalize encoding teardown (porter)
+
+2014-12-18 (bug)[7c187a] [chan copy] crash (io-53.17) (benno,porter)
+
+2015-01-26 (bug)[df0848] Trouble with INFINITY macro (dower,nijtmans)
+
+2015-01-29 (bug) Stop crashes when extension var resolvers misbehave (porter)
+
+2015-01-29 (bug)[088727] [read] past EOF (io-73.4) (fenugrec,porter)
+
+2015-02-11 tzdata updated to Olson's tzdata2015a (venkat)
+
+2015-02-20 (bug)[32b615] Fix compiled [lreplace] (lreplace-4.[345]) (aspect)
+
+2015-03-10 (enhancement) Revise OS X notifier for better Cocoa (walzer)
+        *** POTENTIAL INCOMPATIBILITY ***
+
+--- Released 8.6.4, March 12, 2015 --- http://core.tcl.tk/tcl/ for details
+
+2015-03-19 (bug)[e66e44] Win: Ctrl-C/Ctrl-Break in console not EOF (nadkarni)
+
+2015-03-21 (bug)[d87cb1] Proper tailcall from compiled ensembles (sofer)
+
+2015-04-23 (bug)[19ea02] Win: shared read from linked dirs (bogdan,oehhar)
+
+2015-04-24 (bug)[879a07] Incomplete chars @ buffer ends (leunissen,porter)
+
+2015-04-29 (bug)[894da1] Hang flushing blocking channels (yorick)
+
+2015-05-14 (enhance)[b9d043] Default use of gzip transfer encoding (fellows)
+=> http 2.8.9
+        *** POTENTIAL INCOMPATIBILITY ***
+
+2015-05-15 (bug)[9dd1bd] destructor [self] after failed constructor (calvo,fellows)
+
+2015-05-15 (bug)[0f42ff] [tailcall] combined with [next] (aspect,fellows)
+
+2015-05-18 (bug)[c11a51] http: race condition in -accept option (fellows)
+
+2015-05-19 (enhance) More pure lists from compiled [list] (porter,fellows)
+
+2015-05-27 (enhancement) Relax memdebug constraint on extensions (kupries)
+
+2015-06-03 (bug)[268b23] crash in traced [expr] (execute-11.2)(tomkinson,porter)
+
+2015-06-11 (bug)[478c44] Memleak in zlib compresion errors (mistachkin)
+
+2015-06-16 (bug)[e770d9] Higher baud on serial channels (woods,nijtmans)
+
+2015-06-18 (update) Update Unicode data to 8.0 (nijtmans)
+        *** POTENTIAL INCOMPATIBILITY ***
+
+2015-06-18 (bug)[a4cb3f] compiled [lreplace] handling of end (bron,aspect)
+
+2015-06-23 (enhance) Use Unicode SendMessageTimeout() (nijtmans)
+=> registry 1.3.1
+
+2015-06-25 (TIP 412) msgcat dynamic locale change and package private locale (oehlmann)
+=> msgcat 1.6.0
+
+2015-07-05 (bug)[a0ece9] crash in traced [expr] (execute-11.3) (hans,porter)
+
+2015-07-10 (TIP 436) [info object isa] favors 'false' over error (fellows)
+=> TclOO 1.0.4
+
+2015-07-15 (bug)[b1534b][9bad63] writes beyond buffer bounds (hanno,porter)
+
+2015-07-18 (bug)[a3309d] Memleak in compiled [unset a($i)] (jeff,porter)
+
+2015-07-23 (bug)[57945b] lock in forking/multi-threading (neumann,mistachkin)
+
+2015-07-29 (bug)[3e7eca] Allocation overflow in expr parsing (rickyb,porter)
+
+2015-07-30 (bug)[f00009] Win: Memleak in [file] (rp,sebres)
+
+2015-07-31 (bug) Correct problems found in Coverity audit (sofer)
+
+2015-08-19 (bug)[00189c] MSVC 14: semi-static UCRT support (dower,nijtmans)
+
+2015-08-26 (bug)[0df7a1] Tolerate getcwd() failures (cato,nijtmans)
+
+2015-09-21 (bug)[1115587][a3c350][d7ea9f][0e0e15][187d7f] Many fixes and
+improvements to regexp engine from Postgres (lane,porter,fellows,seltenreich)
+
+2015-09-23 (enhance) hash lookup microoptimization (hipp)
+
+2015-09-23 (bug)[e0a7b3] Input buffer draining & file events (griffin,porter)
+
+2015-09-29 (bug)[219866] Cygwin support error (yorick,nijtmans)
+=> platform 1.0.14
+
+2015-10-06 (bug)[b42a85] Win: [file normalize ~user] wrong dir (nadkarni)
+
+2015-10-21 (bug)[1080042][8f2450] More regexp from Postgres (lane,porter)
+
+2015-10-23 (bug)[4a0c16] [clock] react to msgcat locale change (oehlmann)
+
+2015-11-10 (bug)[261a8a] Overflow segfault in I/O translation (brooks,porter)
+
+2015-11-20 (bug)[40f628] ListObjReplace callers fail to detect max (porter)
+
+2015-11-30 (enhance)[32c574] Improve list growth performance (brooks,porter)
+
+2015-12-11 (bug)[c9eb6b] tolerate unset ::env(TZ) (gahr, nijtmans)
+
+2016-01-29 (TIP 440) tcl_platform(engine) -- Tcl implementation (mistachkin)
+
+2016-02-03 (bug)[25842c] stream [zlib deflate] fails with 0 input (ade,fellows)
+
+2016-02-04 (bug)[3d96b7][593baa][cf74de] crashes in OO teardown (porter,fellows)
+
+2016-02-22 (bug)[9b4702] [info exists env(missing)] kills trace (nijtmans)
+
+--- Released 8.6.5, February 29, 2016 --- http://core.tcl.tk/tcl/ for details
+
+2016-03-01 (bug)[803042] mem leak due to reference cycle (porter)
+
+2016-03-08 (bug)[bbc304] reflected watch race condition (porter)
+
+2016-03-17 (bug)[fadc99] compile-5.3 (rodriguez,porter)
+
+2016-03-17 (enhancement)[1a25fd] compile [variable ${ns}::v] (porter)
+
+2016-03-20 (bug)[1af8de] crash in compiled [string replace] (harder,fellows)
+
+2016-03-21 (bug)[d30718] segv in notifier finalize (hirofumi,nijtmans)
+
+2016-03-23 (enhancement)[7d0db7] parallel make (yarda,nijtmans)
+
+2016-03-23 [f12535] enable test bindings customization (vogel,nijtmans)
+
+2016-04-04 (bug)[47ac84] compiled [lreplace] fixes (aspect,ferrieux,fellows)
+        *** POTENTIAL INCOMPATIBILITY ***
+
+2016-04-08 (bug)[866368] RE \w includes 'Punctuation Connector' (nijtmans)
+
+2016-04-08 (bug)[2538f3] Win crash Tcl_OpenTcpServer() (griffin)
+
+2016-04-10 [07d13d] Restore TclBlend support lost in 8.6.1 (buratti)
+
+2016-05-13 (bug)[3154ea] Mem corruption in assembler exceptions (tkob,kenny)
+
+2016-05-13 (bug) registry package support any Unicode env (nijtmans)
+=> registry 1.3.2
+
+2016-05-21 (bug)[f7d4e] [namespace delete] performance (fellows)
+
+2016-06-02 (TIP 447) execution time verbosity option (cerutti)
+=> tcltest 2.4.0
+
+2016-06-16 (bug)[16828b] crash due to [vwait] trace undo fail (dah,porter)
+
+2016-06-16 (enhancement)[4b61af] good [info frame] from more cases (beric)
+
+2016-06-21 (bug)[c383eb] crash in [glob -path a] (oehlmann,porter)
+
+2016-06-21 (update) Update Unicode data to 9.0 (nijtmans)
+        *** POTENTIAL INCOMPATIBILITY ***
+
+2016-06-22 (bug)[16896d] Tcl_DString tolerate append to self. (dah,porter)
+
+2016-06-23 (bug)[d55322] crash in [dict update] (yorick,fellows)
+
+2016-06-27 (bug)[dd260a] crash in [chan configure -dictionary] (madden,aspect)
+
+2016-07-02 (bug)[f961d7] usage message with parameters with spaces (porter)
+        *** POTENTIAL INCOMPATIBILITY ***
+
+2016-07-02 (enhancement)[09fabc] Sort order of -relateddir (lanam)
+
+2016-07-07 (bug)[5d7ca0] Win: [file executable] for .cmd and .ps1 (nadkarni)
+        *** POTENTIAL INCOMPATIBILITY ***
+
+2016-07-08 (bug)[a47641] [file normalize] & Windows junctions (nadkarni)
+
+2016-07-09 [ae61a6] [file] handling of Win hardcoded names (CON) (nadkarni)
+        *** POTENTIAL INCOMPATIBILITY ***
+
+2016-07-09 [3613671] [file owned] (more) useful on Win (nadkarni)
+
+2016-07-09 (bug)[1493a4] [namespace upvar] use of resolvers (beric,fellows)
+        *** POTENTIAL INCOMPATIBILITY ***
+
+2016-07-10 (bug)[da340d] integer division in clock math (nadkarni)
+
+2016-07-20 tzdata updated to Olson's tzdata2016f (venkat)
+
+--- Released 8.6.6, July 27, 2016 --- http://core.tcl.tk/tcl/ for details
@@ -1,7 +1,7 @@
 /*
 * Copyright (C) 2000-2003 Damien Miller.  All rights reserved.
 * Copyright (C) 1999 WIDE Project.  All rights reserved.
- * 
+ *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
@@ -13,7 +13,7 @@
 * 3. Neither the name of the project nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
- * 
+ *
 * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
@@ -67,7 +67,7 @@ strlcpy(char *dst, const char *src, size_t siz)
 }
 #endif

-int fake_getnameinfo(const struct sockaddr *sa, size_t salen, char *host, 
+int fake_getnameinfo(const struct sockaddr *sa, size_t salen, char *host,
                size_t hostlen, char *serv, size_t servlen, int flags)
 {
 	struct sockaddr_in *sin = (struct sockaddr_in *)sa;
@@ -96,7 +96,7 @@ int fake_getnameinfo(const struct sockaddr *sa, size_t salen, char *host,
 		} else {
 			int ret;
 			Tcl_MutexLock(&netdbMutex);
-			hp = gethostbyaddr((char *)&sin->sin_addr, 
+			hp = gethostbyaddr((char *)&sin->sin_addr,
 			    sizeof(struct in_addr), AF_INET);
 			if (hp == NULL) {
 				ret = EAI_NODATA;
@@ -130,7 +130,7 @@ fake_gai_strerror(int err)
 	default:
 		return ("unknown/invalid error.");
 	}
-}    
+}
 #endif /* !HAVE_GAI_STRERROR */

 #ifndef HAVE_FREEADDRINFO
@@ -156,9 +156,9 @@ addrinfo *malloc_ai(int port, u_long addr, const struct addrinfo *hints)
 	ai = malloc(sizeof(*ai) + sizeof(struct sockaddr_in));
 	if (ai == NULL)
 		return (NULL);
-	
+
 	memset(ai, '\0', sizeof(*ai) + sizeof(struct sockaddr_in));
-	
+
 	ai->ai_addr = (struct sockaddr *)(ai + 1);
 	/* XXX -- ssh doesn't use sa_len */
 	ai->ai_addrlen = sizeof(struct sockaddr_in);
@@ -166,7 +166,7 @@ addrinfo *malloc_ai(int port, u_long addr, const struct addrinfo *hints)

 	((struct sockaddr_in *)(ai)->ai_addr)->sin_port = port;
 	((struct sockaddr_in *)(ai)->ai_addr)->sin_addr.s_addr = addr;
-	
+
 	/* XXX: the following is not generally correct, but does what we want */
 	if (hints->ai_socktype)
 		ai->ai_socktype = hints->ai_socktype;
@@ -180,7 +180,7 @@ addrinfo *malloc_ai(int port, u_long addr, const struct addrinfo *hints)
 }

 int
-fake_getaddrinfo(const char *hostname, const char *servname, 
+fake_getaddrinfo(const char *hostname, const char *servname,
    const struct addrinfo *hints, struct addrinfo **res)
 {
 	struct hostent *hp;
@@ -211,29 +211,29 @@ fake_getaddrinfo(const char *hostname, const char *servname,
 		if (hostname && inet_aton(hostname, &in) != 0)
 			addr = in.s_addr;
 		*res = malloc_ai(port, addr, hints);
-		if (*res == NULL) 
+		if (*res == NULL)
 			return (EAI_MEMORY);
 		return (0);
 	}
-		
+
 	if (!hostname) {
 		*res = malloc_ai(port, htonl(0x7f000001), hints);
-		if (*res == NULL) 
+		if (*res == NULL)
 			return (EAI_MEMORY);
 		return (0);
 	}
-	
+
 	if (inet_aton(hostname, &in)) {
 		*res = malloc_ai(port, in.s_addr, hints);
-		if (*res == NULL) 
+		if (*res == NULL)
 			return (EAI_MEMORY);
 		return (0);
 	}
-	
+
 	/* Don't try DNS if AI_NUMERICHOST is set */
 	if (hints && hints->ai_flags & AI_NUMERICHOST)
 		return (EAI_NONAME);
-	
+
 	Tcl_MutexLock(&netdbMutex);
 	hp = gethostbyname(hostname);
 	if (hp && hp->h_name && hp->h_name[0] && hp->h_addr_list[0]) {
@@ -1,7 +1,7 @@
 /*
 * Copyright (C) 2000-2003 Damien Miller.  All rights reserved.
 * Copyright (C) 1999 WIDE Project.  All rights reserved.
- * 
+ *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
@@ -13,7 +13,7 @@
 * 3. Neither the name of the project nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
- * 
+ *
 * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
@@ -39,7 +39,7 @@
 #define _FAKE_RFC2553_H

 /*
- * First, socket and INET6 related definitions 
+ * First, socket and INET6 related definitions
 */
 #ifndef HAVE_STRUCT_SOCKADDR_STORAGE
 # define	_SS_MAXSIZE	128	/* Implementation specific max size */
@@ -146,7 +146,7 @@ struct addrinfo {
 # undef getaddrinfo
 #endif
 #define getaddrinfo(a,b,c,d)    (fake_getaddrinfo(a,b,c,d))
-int getaddrinfo(const char *, const char *, 
+int getaddrinfo(const char *, const char *,
    const struct addrinfo *, struct addrinfo **);
 #endif /* !HAVE_GETADDRINFO */

@@ -162,7 +162,7 @@ void freeaddrinfo(struct addrinfo *);

 #ifndef HAVE_GETNAMEINFO
 #define getnameinfo(a,b,c,d,e,f,g) (fake_getnameinfo(a,b,c,d,e,f,g))
-int getnameinfo(const struct sockaddr *, size_t, char *, size_t, 
+int getnameinfo(const struct sockaddr *, size_t, char *, size_t,
    char *, size_t, int);
 #endif /* !HAVE_GETNAMEINFO */

@@ -1,4 +1,4 @@
-/* 
+/*
 * fixstrtod.c --
 *
 *	Source code for the "fixstrtod" procedure.  This procedure is
@@ -1,4 +1,4 @@
-/* 
+/*
 * gettod.c --
 *
 *	This file provides the gettimeofday function on systems
@@ -1,22 +0,0 @@
-/*
- * limits.h --
- *
- *	This is a dummy header file to #include in Tcl when there
- *	is no limits.h in /usr/include.  There are only a few
- *	definitions here;  also see tclPort.h, which already
- *	#defines some of the things here if they're not arleady
- *	defined.
- *
- * Copyright (c) 1991 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.
- */
-
-#define LONG_MIN		0x80000000
-#define LONG_MAX		0x7fffffff
-#define INT_MIN			0x80000000
-#define INT_MAX			0x7fffffff
-#define SHRT_MIN		0x8000
-#define SHRT_MAX		0x7fff
@@ -1,4 +1,4 @@
-/* 
+/*
 * mkstemp.c --
 *
 *	Source code for the "mkstemp" library routine.
@@ -1,4 +1,4 @@
-/* 
+/*
 * opendir.c --
 *
 *	This file provides dirent-style directory-reading procedures for V7
@@ -1,4 +1,4 @@
-/* 
+/*
 * strncasecmp.c --
 *
 *	Source code for the "strncasecmp" library routine.
@@ -1,4 +1,4 @@
-/* 
+/*
 * strstr.c --
 *
 *	Source code for the "strstr" library routine.
@@ -1,4 +1,4 @@
-/* 
+/*
 * strtod.c --
 *
 *	Source code for the "strtod" library procedure.
@@ -137,7 +137,7 @@ strtod(
     * has more than 18 digits, ignore the extras, since they can't affect the
     * value anyway.
     */
-    
+
    pExp  = p;
    p -= mantSize;
    if (decPt < 0) {
@@ -217,7 +217,7 @@ strtod(
     * 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;
@@ -1,4 +1,4 @@
-/* 
+/*
 * strtol.c --
 *
 *	Source code for the "strtol" library procedure.
@@ -1,4 +1,4 @@
-/* 
+/*
 * strtoul.c --
 *
 *	Source code for the "strtoul" library procedure.
@@ -90,7 +90,7 @@ strtoul(
     * If no base was provided, pick one from the leading characters of the
     * string.
     */
-    
+
    if (base == 0) {
 	if (*p == '0') {
 	    p += 1;
@@ -206,7 +206,7 @@ strtoul(
    if (overflow) {
 	errno = ERANGE;
 	return ULONG_MAX;
-    } 
+    }
    if (negative) {
 	return -result;
    }
@@ -20,7 +20,7 @@
 #define NULL    0
 #endif

-/* 
+/*
 * Strict POSIX stuff goes here. Extensions go down below, in the ifndef
 * _POSIX_SOURCE section.
 */
@@ -1,4 +1,4 @@
-/* 
+/*
 * waitpid.c --
 *
 *	This procedure emulates the POSIX waitpid kernel call on BSD systems
@@ -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_Access 3 8.1 Tcl "Tcl Library Procedures"
 .so man.macros
 .BS
@@ -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_AddErrorInfo 3 8.5 Tcl "Tcl Library Procedures"
 .so man.macros
 .BS
@@ -17,7 +17,7 @@ Tcl_GetReturnOptions, Tcl_SetReturnOptions, Tcl_AddErrorInfo, Tcl_AppendObjToErr
 Tcl_Obj *
 \fBTcl_GetReturnOptions\fR(\fIinterp, code\fR)
 .sp
-int 
+int
 \fBTcl_SetReturnOptions\fR(\fIinterp, options\fR)
 .sp
 \fBTcl_AddErrorInfo\fR(\fIinterp, message\fR)
@@ -45,7 +45,7 @@ void
 .AS Tcl_Interp commandLength
 .AP Tcl_Interp *interp in
 Interpreter in which to record information.
-.AP int code 
+.AP int code
 The code returned from script evaluation.
 .AP Tcl_Obj *options
 A dictionary of return options.
@@ -121,7 +121,7 @@ retrieve the stack trace when script evaluation returns
 .CS
 int code = Tcl_Eval(interp, script);
 if (code == TCL_ERROR) {
-    Tcl_Obj *options = \fBTcl_GetReturnOptions\fR(interp, code);  
+    Tcl_Obj *options = \fBTcl_GetReturnOptions\fR(interp, code);
    Tcl_Obj *key = Tcl_NewStringObj("-errorinfo", -1);
    Tcl_Obj *stackTrace;
    Tcl_IncrRefCount(key);
@@ -163,12 +163,12 @@ to any reference counting.  This is analogous to
 .PP
 While \fBTcl_SetReturnOptions\fR provides a general interface
 to set any collection of return options, there are a handful
-of return options that are very frequently used.  Most 
+of return options that are very frequently used.  Most
 notably the \fB\-errorinfo\fR and \fB\-errorcode\fR return
 options should be set properly when the command procedure
 of a command returns \fBTCL_ERROR\fR.  The \fB\-errorline\fR
 return option is also read by commands that evaluate scripts
-and wish to supply detailed error location information in 
+and wish to supply detailed error location information in
 the stack trace text they append to the \fB\-errorinfo\fR option.
 Tcl provides several simpler interfaces to more directly set
 these return options.
@@ -224,7 +224,7 @@ is available as a \fBTcl_Obj\fR instead of as a \fBchar\fR array.
 .PP
 \fBTcl_AddObjErrorInfo\fR is nearly identical
 to \fBTcl_AddErrorInfo\fR, except that it has an additional \fIlength\fR
-argument.  This allows the \fImessage\fR string to contain 
+argument.  This allows the \fImessage\fR string to contain
 embedded null bytes.  This is essentially never a good idea.
 If the \fImessage\fR needs to contain the null character \fBU+0000\fR,
 Tcl's usual internal encoding rules should be used to avoid
@@ -232,9 +232,9 @@ the need for a null byte.  If the \fBTcl_AddObjErrorInfo\fR
 interface is used at all, it should be with a negative \fIlength\fR value.
 .PP
 The procedure \fBTcl_SetObjErrorCode\fR is used to set the
-\fB\-errorcode\fR return option to the list value \fIerrorObjPtr\fR 
-built up by the caller. 
-\fBTcl_SetObjErrorCode\fR is typically invoked just 
+\fB\-errorcode\fR return option to the list value \fIerrorObjPtr\fR
+built up by the caller.
+\fBTcl_SetObjErrorCode\fR is typically invoked just
 before returning an error. If an error is
 returned without calling \fBTcl_SetObjErrorCode\fR or
 \fBTcl_SetErrorCode\fR the Tcl interpreter automatically sets
@@ -275,7 +275,7 @@ the interpreter's result.
 \fBTcl_LogCommandInfo\fR is invoked after an error occurs in an
 interpreter.  It adds information about the command that was being
 executed when the error occurred to the \fB\-errorinfo\fR value, and
-the line number stored internally in the interpreter is set.  
+the line number stored internally in the interpreter is set.
 .PP
 In older releases of Tcl, there was no \fBTcl_GetReturnOptions\fR
 routine.  In its place, the global Tcl variables \fBerrorInfo\fR
@@ -288,7 +288,7 @@ global variables remains a supported way to access these
 return option values, it is important not to assume that
 writing to those global variables will properly set the
 corresponding return options.  It has long been emphasized
-in this manual page that it is important to 
+in this manual page that it is important to
 call the procedures described here rather than
 setting \fBerrorInfo\fR or \fBerrorCode\fR directly with
 \fBTcl_ObjSetVar2\fR.
@@ -297,7 +297,7 @@ If the procedure \fBTcl_ResetResult\fR is called,
 it clears all of the state of the interpreter associated with
 script evaluation, including the entire return options dictionary.
 In particular, the \fB\-errorinfo\fR and \fB\-errorcode\fR options
-are reset.  
+are reset.
 If an error had occurred, the \fBTcl_ResetResult\fR call will
 clear the error state to make it appear as if no error had
 occurred after all.
@@ -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_Alloc 3 7.5 Tcl "Tcl Library Procedures"
 .so man.macros
 .BS
@@ -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_AllowExceptions 3 7.4 Tcl "Tcl Library Procedures"
 .so man.macros
 .BS
@@ -31,7 +31,7 @@ return with an appropriate message.  The particular script
 evaluation procedures of Tcl that act in the manner are
 \fBTcl_EvalObjEx\fR, \fBTcl_EvalObjv\fR, \fBTcl_Eval\fR, \fBTcl_EvalEx\fR,
 \fBTcl_GlobalEval\fR, \fBTcl_GlobalEvalObj\fR, \fBTcl_VarEval\fR and
-\fBTcl_VarEvalVA\fR. 
+\fBTcl_VarEvalVA\fR.
 .PP
 However, if \fBTcl_AllowExceptions\fR is invoked immediately before
 calling one of those a procedures, then arbitrary completion
@@ -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_AppInit 3 7.0 Tcl "Tcl Library Procedures"
 .so man.macros
 .BS
@@ -52,7 +52,7 @@ Invoke a startup script to initialize the application.
 Use the routines \fBTcl_SetStartupScript\fR and
 \fBTcl_GetStartupScript\fR to set or query the file and encoding
 that the active \fBTcl_Main\fR or \fBTk_Main\fR routine will
-use as a startup script. 
+use as a startup script.
 .LP
 \fBTcl_AppInit\fR returns \fBTCL_OK\fR or \fBTCL_ERROR\fR.
 If it returns \fBTCL_ERROR\fR then it must leave an error message in
@@ -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_SetAssocData 3 7.5 Tcl "Tcl Library Procedures"
 .so man.macros
 .BS
@@ -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_AsyncCreate 3 7.0 Tcl "Tcl Library Procedures"
 .so man.macros
 .BS
@@ -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_BackgroundError 3 7.5 Tcl "Tcl Library Procedures"
 .so man.macros
 .BS
@@ -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_Backslash 3 "8.1" Tcl "Tcl Library Procedures"
 .so man.macros
 .BS
@@ -33,7 +33,7 @@ The use of \fBTcl_Backslash\fR is deprecated in favor of
 .PP
 This is a utility procedure provided for backwards compatibility with
 non-internationalized Tcl extensions.  It parses a backslash sequence and
-returns the low byte of the Unicode character corresponding to the sequence. 
+returns the low byte of the Unicode character corresponding to the sequence.
 \fBTcl_Backslash\fR modifies \fI*countPtr\fR to contain the number of
 characters in the backslash sequence.
 .PP
@@ -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_BooleanObj 3 8.5 Tcl "Tcl Library Procedures"
 .so man.macros
 .BS
@@ -50,7 +50,7 @@ value \fIboolValue\fR in it, and returns a pointer to the new Tcl_Obj.
 The new Tcl_Obj has reference count of zero.
 .PP
 \fBTcl_SetBooleanObj\fR accepts \fIobjPtr\fR, a pointer to
-an existing Tcl_Obj, and stores in the Tcl_Obj \fI*objPtr\fR 
+an existing Tcl_Obj, and stores in the Tcl_Obj \fI*objPtr\fR
 the boolean value \fIboolValue\fR.  This is a write operation
 on \fI*objPtr\fR, so \fIobjPtr\fR must be unshared.  Attempts to
 write to a shared Tcl_Obj will panic.  A successful write
@@ -61,7 +61,7 @@ any former value stored in \fI*objPtr\fR.
 from the value stored in \fI*objPtr\fR.
 If \fIobjPtr\fR holds a string value recognized by \fBTcl_GetBoolean\fR,
 then the recognized boolean value is written at the address given
-by \fIboolPtr\fR.  
+by \fIboolPtr\fR.
 If \fIobjPtr\fR holds any value recognized as
 a number by Tcl, then if that value is zero a 0 is written at
 the address given by \fIboolPtr\fR and if that
@@ -69,10 +69,10 @@ value is non-zero a 1 is written at the address given by \fIboolPtr\fR.
 In all cases where a value is written at the address given
 by \fIboolPtr\fR, \fBTcl_GetBooleanFromObj\fR returns \fBTCL_OK\fR.
 If the value of \fIobjPtr\fR does not meet any of the conditions
-above, then \fBTCL_ERROR\fR is returned and an error message is 
+above, then \fBTCL_ERROR\fR is returned and an error message is
 left in the interpreter's result unless \fIinterp\fR is NULL.
 \fBTcl_GetBooleanFromObj\fR may also make changes to the internal
-fields of \fI*objPtr\fR so that future calls to 
+fields of \fI*objPtr\fR so that future calls to
 \fBTcl_GetBooleanFromObj\fR on the same \fIobjPtr\fR can be
 performed more efficiently.
 .PP
@@ -3,12 +3,12 @@
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
+'\"
 .TH Tcl_ByteArrayObj 3 8.1 Tcl "Tcl Library Procedures"
 .so man.macros
 .BS
 .SH NAME
-Tcl_NewByteArrayObj, Tcl_SetByteArrayObj, Tcl_GetByteArrayFromObj, Tcl_SetByteArrayLength \- manipulate Tcl values as a arrays of bytes 
+Tcl_NewByteArrayObj, Tcl_SetByteArrayObj, Tcl_GetByteArrayFromObj, Tcl_SetByteArrayLength \- manipulate Tcl values as a arrays of bytes
 .SH SYNOPSIS
 .nf
 \fB#include <tcl.h>\fR
@@ -16,7 +16,7 @@ Tcl_NewByteArrayObj, Tcl_SetByteArrayObj, Tcl_GetByteArrayFromObj, Tcl_SetByteAr
 Tcl_Obj *
 \fBTcl_NewByteArrayObj\fR(\fIbytes, length\fR)
 .sp
-void 
+void
 \fBTcl_SetByteArrayObj\fR(\fIobjPtr, bytes, length\fR)
 .sp
 unsigned char *
@@ -82,7 +82,7 @@ allocated for the array, the array is reallocated to the new length; the
 newly allocated bytes at the end of the array have arbitrary values.  If
 \fIlength\fR is less than the space currently allocated for the array,
 the length of array is reduced to the new length.  The return value is a
-pointer to the value's new array of bytes.  
+pointer to the value's new array of bytes.

 .SH "SEE ALSO"
 Tcl_GetStringFromObj, Tcl_NewObj, Tcl_IncrRefCount, Tcl_DecrRefCount
@@ -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_Cancel 3 8.6 Tcl "Tcl Library Procedures"
 .so man.macros
 .BS
@@ -13,20 +13,25 @@ Tcl_CancelEval, Tcl_Canceled \- cancel Tcl scripts
 .nf
 \fB#include <tcl.h>\fR
 int
-\fBTcl_CancelEval\fR(\fIinterp, clientData, flags\fR)
+\fBTcl_CancelEval\fR(\fIinterp, resultObjPtr, clientData, flags\fR)
 .sp
 int
 \fBTcl_Canceled\fR(\fIinterp, flags\fR)
 .SH ARGUMENTS
+.AS Tcl_Interp *interp
 .AP Tcl_Interp *interp in
 Interpreter in which to cancel the script.
+.AP Tcl_Obj *resultObjPtr in
+Error message to use in the cancellation, or NULL to use a default message. If
+not NULL, this object will have its reference count decremented before
+\fBTcl_CancelEval\fR returns.
 .AP int flags in
 ORed combination of flag bits that specify additional options.
 For \fBTcl_CancelEval\fR, only \fBTCL_CANCEL_UNWIND\fR is currently
 supported.  For \fBTcl_Canceled\fR, only \fBTCL_LEAVE_ERR_MSG\fR and
 \fBTCL_CANCEL_UNWIND\fR are currently supported.
 .AP ClientData clientData in
-Currently, reserved for future use.
+Currently reserved for future use.
 It should be set to NULL.
 .BE
 .SH DESCRIPTION
@@ -41,19 +46,21 @@ returns \fBTCL_ERROR\fR if it has.  Otherwise, \fBTCL_OK\fR is returned.
 Extensions can use this function to check to see if they should abort a long
 running command.  This function is thread sensitive and may only be called
 from the thread the interpreter was created in.
-.SH "FLAG BITS"
+.SS "FLAG BITS"
 Any ORed combination of the following values may be used for the
 \fIflags\fR argument to procedures such as \fBTcl_CancelEval\fR:
-.TP 23
+.TP 20
 \fBTCL_CANCEL_UNWIND\fR
+.
 This flag is used by \fBTcl_CancelEval\fR and \fBTcl_Canceled\fR.
-For \fBTcl_CancelEval\fR, if this flag is set, the script in progress 
+For \fBTcl_CancelEval\fR, if this flag is set, the script in progress
 is canceled and the evaluation stack for the interpreter is unwound.
-For \fBTcl_Canceled\fR, if this flag is set, the script in progress 
-is considered to be canceled only if the evaluation stack for the 
+For \fBTcl_Canceled\fR, if this flag is set, the script in progress
+is considered to be canceled only if the evaluation stack for the
 interpreter is being unwound.
-.TP 23
+.TP 20
 \fBTCL_LEAVE_ERR_MSG\fR
+.
 This flag is only used by \fBTcl_Canceled\fR; it is ignored by
 other procedures.  If an error is returned and this bit is set in
 \fIflags\fR, then an error message will be left in the interpreter's
@@ -61,6 +68,7 @@ result, where it can be retrieved with \fBTcl_GetObjResult\fR or
 \fBTcl_GetStringResult\fR.  If this flag bit is not set then no error
 message is left and the interpreter's result will not be modified.
 .SH "SEE ALSO"
+interp(n), Tcl_Eval(3),
 TIP 285
 .SH KEYWORDS
 cancel, unwind
@@ -71,7 +71,8 @@ The name of the object to create, or NULL if a new unused name is to be
 automatically selected.
 .AP "const char" *nsName in
 The name of the namespace to create for the object's private use, or NULL if a
-new unused name is to be automatically selected.
+new unused name is to be automatically selected. The namespace must not
+already exist.
 .AP int objc in
 The number of elements in the \fIobjv\fR array.
 .AP "Tcl_Obj *const" *objv in
@@ -336,7 +336,7 @@ typedef struct Tcl_ChannelType {
 It is not necessary to provide implementations for all channel
 operations.  Those which are not necessary may be set to NULL in the
 struct: \fIblockModeProc\fR, \fIseekProc\fR, \fIsetOptionProc\fR,
-\fIgetOptionProc\fR, and \fIclose2Proc\fR, in addition to
+\fIgetOptionProc\fR, \fIgetHandleProc\fR, and \fIclose2Proc\fR, in addition to
 \fIflushProc\fR, \fIhandlerProc\fR, \fIthreadActionProc\fR, and
 \fItruncateProc\fR.  Other functions that cannot be implemented in a
 meaningful way should return \fBEINVAL\fR when called, to indicate
@@ -639,13 +639,13 @@ called to set them, e.g. \fB\-blockmode\fR. Other options are specific to
 each channel type and the \fIsetOptionProc\fR procedure of the channel
 driver will get called to implement them. The \fIsetOptionProc\fR field can
 be NULL, which indicates that this channel type supports no type specific
-options. 
+options.
 .PP
 If the option value is successfully modified to the new value, the function
 returns \fBTCL_OK\fR.
 It should call \fBTcl_BadChannelOption\fR which itself returns
 \fBTCL_ERROR\fR if the \fIoptionName\fR is
-unrecognized. 
+unrecognized.
 If \fInewValue\fR specifies a value for the option that
 is not supported or if a system call error occurs,
 the function should leave an error message in the
@@ -674,7 +674,7 @@ channel. If the option name is not NULL, the function stores its current
 value, as a string, in the Tcl dynamic string \fIoptionValue\fR.
 If \fIoptionName\fR is NULL, the function stores in \fIoptionValue\fR an
 alternating list of all supported options and their current values.
-On success, the function returns \fBTCL_OK\fR. 
+On success, the function returns \fBTCL_OK\fR.
 It should call \fBTcl_BadChannelOption\fR which itself returns
 \fBTCL_ERROR\fR if the \fIoptionName\fR is
 unrecognized. If a system call error occurs,
@@ -839,7 +839,7 @@ which returns a pointer to the function.
 This procedure generates a
 .QW "bad option"
 error message in an
-(optional) interpreter.  It is used by channel drivers when 
+(optional) interpreter.  It is used by channel drivers when
 an invalid Set/Get option is requested. Its purpose is to concatenate
 the generic options list to the specific ones and factorize
 the generic options error message string.
@@ -850,7 +850,7 @@ An error message is generated in \fIinterp\fR's result value to
 indicate that a command was invoked with a bad option.
 The message has the form
 .CS
-    bad option "blah": should be one of 
+    bad option "blah": should be one of
    <...generic options...>+<...specific options...>
 .CE
 so you get for instance:
@@ -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_CreateCommand 3 "" Tcl "Tcl Library Procedures"
 .so man.macros
 .BS
@@ -91,7 +91,7 @@ the command, \fIargc\fR giving the number of arguments (including
 the command name) and \fIargv\fR giving the values of the arguments
 as strings.  The \fIargv\fR array will contain \fIargc\fR+1 values;
 the first \fIargc\fR values point to the argument strings, and the
-last value is NULL.  
+last value is NULL.
 Note that the argument strings should not be modified as they may
 point to constant strings or may be shared with other parts of the
 interpreter.
@@ -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_CreateMathFunc 3 8.4 Tcl "Tcl Library Procedures"
 .so man.macros
 .BS
@@ -147,7 +147,7 @@ released by passing it to \fBTcl_Free\fR.  Some functions (the
 standard set implemented in the core, and those defined by placing
 commands in the \fBtcl::mathfunc\fR namespace) do not have
 argument type information; attempting to retrieve values for
-them causes a NULL to be stored in the variable pointed to by 
+them causes a NULL to be stored in the variable pointed to by
 \fIprocPtr\fR and the variable pointed to by \fIclientDataPtr\fR
 will not be modified.  The variable pointed to by \fInumArgsPointer\fR
 will contain -1, and no argument types will be stored in the variable
@@ -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_CreateObjCommand 3 8.0 Tcl "Tcl Library Procedures"
 .so man.macros
 .BS
@@ -150,7 +150,7 @@ However, if the existing command was created by a previous call to
 but instead arranges for the Tcl interpreter to call the
 \fBTcl_ObjCmdProc\fR \fIproc\fR in the future.
 The old string-based \fBTcl_CmdProc\fR associated with the command
-is retained and its address can be obtained by subsequent 
+is retained and its address can be obtained by subsequent
 \fBTcl_GetCommandInfo\fR calls. This is done for backwards compatibility.
 .PP
 \fIDeleteProc\fR will be invoked when (if) \fIname\fR is deleted.
@@ -288,7 +288,7 @@ command is not deleted or renamed;  callers should copy the string if
 they need to keep it for a long time.
 .PP
 \fBTcl_GetCommandFullName\fR produces the fully qualified name
-of a command from a command token.  
+of a command from a command token.
 The name, including all namespace prefixes,
 is appended to the value specified by \fIobjPtr\fR.
 .PP
@@ -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_CreateSlave 3 7.6 Tcl "Tcl Library Procedures"
 .so man.macros
 .BS
@@ -122,8 +122,8 @@ is either \fBTCL_OK\fR or \fBTCL_ERROR\fR. If \fBTCL_ERROR\fR is returned
 then the \fBresult\fR field of the interpreter contains an error message.
 .PP
 \fBTcl_CreateSlave\fR creates a new interpreter as a slave of \fIinterp\fR.
-It also creates a slave command named \fIslaveName\fR in \fIinterp\fR which 
-allows \fIinterp\fR to manipulate the new slave. 
+It also creates a slave command named \fIslaveName\fR in \fIinterp\fR which
+allows \fIinterp\fR to manipulate the new slave.
 If \fIisSafe\fR is zero, the command creates a trusted slave in which Tcl
 code has access to all the Tcl commands.
 If it is \fB1\fR, the command creates a
@@ -178,7 +178,7 @@ created by \fBTcl_CreateSlave\fR) between \fIslaveInterp\fR and
 \fItargetInterp\fR. Any two interpreters can be used, without any
 restrictions on how they are related.
 .PP
-\fBTcl_CreateAliasObj\fR is similar to \fBTcl_CreateAlias\fR except 
+\fBTcl_CreateAliasObj\fR is similar to \fBTcl_CreateAlias\fR except
 that it takes a vector of values to pass as additional arguments instead
 of a vector of strings.
 .PP
@@ -196,7 +196,7 @@ strings.
 \fBTcl_ExposeCommand\fR moves the command named \fIhiddenCmdName\fR from
 the set of hidden commands to the set of exposed commands, putting
 it under the name
-\fIcmdName\fR. 
+\fIcmdName\fR.
 \fIHiddenCmdName\fR must be the name of an existing hidden
 command, or the operation will return \fBTCL_ERROR\fR and leave an error
 message in the \fIresult\fR field in \fIinterp\fR.
@@ -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 Tcl_CreateTrace 3 "" Tcl "Tcl Library Procedures"
 .so man.macros
 .BS
@@ -65,7 +65,7 @@ interpreter.
 \fBTcl_CmdObjTraceProc\fR:
 .PP
 .CS
-typedef int \fBTcl_CmdObjTraceProc\fR( 
+typedef int \fBTcl_CmdObjTraceProc\fR(
        \fBClientData\fR \fIclientData\fR,
        \fBTcl_Interp\fR* \fIinterp\fR,
        int \fIlevel\fR,
@@ -143,7 +143,7 @@ When \fBTcl_DeleteTrace\fR is called, the interpreter invokes the
 \fBTcl_CmdObjTraceDeleteProc\fR:
 .PP
 .CS
-typedef void \fBTcl_CmdObjTraceDeleteProc\fR( 
+typedef void \fBTcl_CmdObjTraceDeleteProc\fR(
        \fBClientData\fR \fIclientData\fR);
 .CE
 .PP
@@ -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_DString 3 7.4 Tcl "Tcl Library Procedures"
 .so man.macros
 .BS
@@ -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_DoOneEvent 3 7.5 Tcl "Tcl Library Procedures"
 .so man.macros
 .BS
@@ -20,7 +20,7 @@ int
 .AS int flags
 .AP int flags in
 This parameter is normally zero.  It may be an OR-ed combination
-of any of the following flag bits:  
+of any of the following flag bits:
 \fBTCL_WINDOW_EVENTS\fR, \fBTCL_FILE_EVENTS\fR,
 \fBTCL_TIMER_EVENTS\fR, \fBTCL_IDLE_EVENTS\fR, \fBTCL_ALL_EVENTS\fR,
 or \fBTCL_DONT_WAIT\fR.
@@ -43,7 +43,7 @@ handlers for the first event on the queue, and returns.
 If no events are found, \fBTcl_DoOneEvent\fR checks for \fBTcl_DoWhenIdle\fR
 callbacks; if any are found, it invokes all of them and returns.
 Finally, if no events or idle callbacks have been found, then
-\fBTcl_DoOneEvent\fR sleeps until an event occurs; then it adds any 
+\fBTcl_DoOneEvent\fR sleeps until an event occurs; then it adds any
 new events to the Tcl event queue, calls handlers for the first event,
 and returns.
 The normal return value is 1 to signify that some event
@@ -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_DoubleObj 3 8.0 Tcl "Tcl Library Procedures"
 .so man.macros
 .BS
@@ -28,7 +28,7 @@ A double-precision floating-point value used to initialize or set a Tcl value.
 For \fBTcl_SetDoubleObj\fR, this points to the value in which to store a
 double value.
 For \fBTcl_GetDoubleFromObj\fR, this refers to the value
-from which to retrieve a double value. 
+from which to retrieve a double value.
 .AP Tcl_Interp *interp in/out
 When non-NULL, an error message is left here when double value retrieval fails.
 .AP double *doublePtr out
@@ -56,7 +56,7 @@ returned, and the double value is written to the storage pointed to by
 \fIdoublePtr\fR.  If the attempt fails, then \fBTCL_ERROR\fR is returned,
 and if \fIinterp\fR is non-NULL, an error message is left in \fIinterp\fR.
 The \fBTcl_ObjType\fR of \fIobjPtr\fR may be changed to make subsequent
-calls to \fBTcl_GetDoubleFromObj\fR more efficient. 
+calls to \fBTcl_GetDoubleFromObj\fR more efficient.
 '\" TODO: add discussion of treatment of NaN value
 .SH "SEE ALSO"
 Tcl_NewObj, Tcl_DecrRefCount, Tcl_IncrRefCount, Tcl_GetObjResult
@@ -2,7 +2,7 @@
 '\" Copyright (c) 1992-1999 Karl Lehenbauer and Mark Diekhans.
 '\" Copyright (c) 2000 by Scriptics Corporation.
 '\" All rights reserved.
-'\" 
+'\"
 .TH "Tcl_DumpActiveMemory" 3 8.1 Tcl "Tcl Library Procedures"
 .so man.macros
 .BS
@@ -39,7 +39,7 @@ These functions provide access to Tcl memory debugging information.
 They are only functional when Tcl has been compiled with
 \fBTCL_MEM_DEBUG\fR defined at compile-time.  When \fBTCL_MEM_DEBUG\fR
 is not defined, these functions are all no-ops.
-.PP 
+.PP
 \fBTcl_DumpActiveMemory\fR will output a list of all currently
 allocated memory to the specified file.  The information output for
 each allocated block of memory is:  starting and ending addresses
@@ -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_GetEncoding 3 "8.1" Tcl "Tcl Library Procedures"
 .so man.macros
 .BS
@@ -76,7 +76,7 @@ desired.
 .AP "const char" *name in
 Name of encoding to load.
 .AP Tcl_Encoding encoding in
-The encoding to query, free, or use for converting text.  If \fIencoding\fR is 
+The encoding to query, free, or use for converting text.  If \fIencoding\fR is
 NULL, the current system encoding is used.
 .AP Tcl_Obj *objPtr in
 Name of encoding to get token for.
@@ -86,17 +86,17 @@ Points to storage where encoding token is to be written.
 For the \fBTcl_ExternalToUtf\fR functions, an array of bytes in the
 specified encoding that are to be converted to UTF-8.  For the
 \fBTcl_UtfToExternal\fR and \fBTcl_WinUtfToTChar\fR functions, an array of
-UTF-8 characters to be converted to the specified encoding.  
+UTF-8 characters to be converted to the specified encoding.
 .AP "const TCHAR" *tsrc in
 An array of Windows TCHAR characters to convert to UTF-8.
-.AP int srcLen in 
-Length of \fIsrc\fR or \fItsrc\fR in bytes.  If the length is negative, the 
+.AP int srcLen in
+Length of \fIsrc\fR or \fItsrc\fR in bytes.  If the length is negative, the
 encoding-specific length of the string is used.
 .AP Tcl_DString *dstPtr out
 Pointer to an uninitialized or free \fBTcl_DString\fR in which the converted
 result will be stored.
 .AP int flags in
-Various flag bits OR-ed together.  
+Various flag bits OR-ed together.
 \fBTCL_ENCODING_START\fR signifies that the
 source buffer is the first block in a (potentially multi-block) input
 stream, telling the conversion routine to reset to an initial state and
@@ -108,7 +108,7 @@ byte is converted and then to reset to an initial state.
 \fBTCL_ENCODING_STOPONERROR\fR signifies that the conversion routine should
 return immediately upon reading a source character that does not exist in
 the target encoding; otherwise a default fallback character will
-automatically be substituted.  
+automatically be substituted.
 .AP Tcl_EncodingState *statePtr in/out
 Used when converting a (generally long or indefinite length) byte stream
 in a piece-by-piece fashion.  The conversion routine stores its current
@@ -116,7 +116,7 @@ state in \fI*statePtr\fR after \fIsrc\fR (the buffer containing the
 current piece) has been converted; that state information must be passed
 back when converting the next piece of the stream so the conversion
 routine knows what state it was in when it left off at the end of the
-last piece.  May be NULL, in which case the value specified for \fIflags\fR 
+last piece.  May be NULL, in which case the value specified for \fIflags\fR
 is ignored and the source buffer is assumed to contain the complete string to
 convert.
 .AP char *dst out
@@ -137,11 +137,11 @@ stored in the output buffer.  May be NULL.
 .AP Tcl_DString *bufPtr out
 Storage for the prescribed system encoding name.
 .AP "const Tcl_EncodingType" *typePtr in
-Structure that defines a new type of encoding.  
+Structure that defines a new type of encoding.
 .AP Tcl_Obj *searchPath in
 List of filesystem directories in which to search for encoding data files.
 .AP "const char" *path in
-A path to the location of the encoding file.  
+A path to the location of the encoding file.
 .BE
 .SH INTRODUCTION
 .PP
@@ -180,13 +180,13 @@ The first time \fIname\fR is seen, \fBTcl_GetEncoding\fR returns an
 encoding with a reference count of 1.  If the same \fIname\fR is requested
 further times, then the reference count for that encoding is incremented
 without the overhead of allocating a new encoding and all its associated
-data structures.  
+data structures.
 .PP
 When an \fIencoding\fR is no longer needed, \fBTcl_FreeEncoding\fR
 should be called to release it.  When an \fIencoding\fR is no longer in use
 anywhere (i.e., it has been freed as many times as it has been gotten)
 \fBTcl_FreeEncoding\fR will release all storage the encoding was using
-and delete it from the database. 
+and delete it from the database.
 .PP
 \fBTcl_GetEncodingFromObj\fR treats the string representation of
 \fIobjPtr\fR as an encoding name, and finds an encoding with that
@@ -201,7 +201,7 @@ on the resulting encoding token when that token will no longer be
 used.
 .PP
 \fBTcl_ExternalToUtfDString\fR converts a source buffer \fIsrc\fR from the
-specified \fIencoding\fR into UTF-8.  The converted bytes are stored in 
+specified \fIencoding\fR into UTF-8.  The converted bytes are stored in
 \fIdstPtr\fR, which is then null-terminated.  The caller should eventually
 call \fBTcl_DStringFree\fR to free any information stored in \fIdstPtr\fR.
 When converting, if any of the characters in the source buffer cannot be
@@ -227,17 +227,17 @@ sequence, but more bytes were needed to complete this sequence.  A
 subsequent call to the conversion routine should pass a buffer containing
 the unconverted bytes that remained in \fIsrc\fR plus some further bytes
 from the source stream to properly convert the formerly split-up multibyte
-sequence.  
+sequence.
 .IP \fBTCL_CONVERT_SYNTAX\fR 29
 The source buffer contained an invalid character sequence.  This may occur
 if the input stream has been damaged or if the input encoding method was
 misidentified.
 .IP \fBTCL_CONVERT_UNKNOWN\fR 29
 The source buffer contained a character that could not be represented in
-the target encoding and \fBTCL_ENCODING_STOPONERROR\fR was specified.  
+the target encoding and \fBTCL_ENCODING_STOPONERROR\fR was specified.
 .RE
 .LP
-\fBTcl_UtfToExternalDString\fR converts a source buffer \fIsrc\fR from UTF-8 
+\fBTcl_UtfToExternalDString\fR converts a source buffer \fIsrc\fR from UTF-8
 into the specified \fIencoding\fR.  The converted bytes are stored in
 \fIdstPtr\fR, which is then terminated with the appropriate encoding-specific
 null.  The caller should eventually call \fBTcl_DStringFree\fR to free any
@@ -257,51 +257,17 @@ is filled with the corresponding number of bytes that were stored in
 .PP
 \fBTcl_WinUtfToTChar\fR and \fBTcl_WinTCharToUtf\fR are
 Windows-only convenience
-functions for converting between UTF-8 and Windows strings.  On Windows 95
-(as with the Unix operating system),
-all strings exchanged between Tcl and the operating system are
-.QW "char"
-based.  On Windows NT, some strings exchanged between Tcl and the
-operating system are
-.QW "char"
-oriented while others are in Unicode.  By
-convention, in Windows a TCHAR is a character in the ANSI code page
-on Windows 95 and a Unicode character on Windows NT.
-.PP
-If you planned to use the same
-.QW "char"
-based interfaces on both Windows
-95 and Windows NT, you could use \fBTcl_UtfToExternal\fR and
-\fBTcl_ExternalToUtf\fR (or their \fBTcl_DString\fR equivalents) with an
-encoding of NULL (the current system encoding).  On the other hand,
-if you planned to use the Unicode interface when running on Windows NT
-and the
-.QW "char"
-interfaces when running on Windows 95, you would have
-to perform the following type of test over and over in your program
-(as represented in pseudo-code):
-.PP
-.CS
-if (running NT) {
-    encoding <- Tcl_GetEncoding("unicode");
-    nativeBuffer <- Tcl_UtfToExternal(encoding, utfBuffer);
-    Tcl_FreeEncoding(encoding);
-} else {
-    nativeBuffer <- Tcl_UtfToExternal(NULL, utfBuffer);
-}
-.CE
-.PP
-\fBTcl_WinUtfToTChar\fR and \fBTcl_WinTCharToUtf\fR automatically
-handle this test and use the proper encoding based on the current
-operating system.  \fBTcl_WinUtfToTChar\fR returns a pointer to
-a TCHAR string, and \fBTcl_WinTCharToUtf\fR expects a TCHAR string
-pointer as the \fIsrc\fR string.  Otherwise, these functions
-behave identically to \fBTcl_UtfToExternalDString\fR and
-\fBTcl_ExternalToUtfDString\fR.
+functions for converting between UTF-8 and Windows strings
+based on the TCHAR type which is by convention
+a Unicode character on Windows NT.
+These functions are essentially wrappers around
+\fBTcl_UtfToExternalDString\fR and
+\fBTcl_ExternalToUtfDString\fR that convert to and from the
+Unicode encoding.
 .PP
 \fBTcl_GetEncodingName\fR is roughly the inverse of \fBTcl_GetEncoding\fR.
 Given an \fIencoding\fR, the return value is the \fIname\fR argument that
-was used to create the encoding.  The string returned by 
+was used to create the encoding.  The string returned by
 \fBTcl_GetEncodingName\fR is only guaranteed to persist until the
 \fIencoding\fR is deleted.  The caller must not modify this string.
 .PP
@@ -340,9 +306,9 @@ reference count of 1. If an encoding with the specified \fIname\fR
 already exists, then its entry in the database is replaced with the new
 encoding; the token for the old encoding will remain valid and continue
 to behave as before, but users of the new token will now call the new
-encoding procedures.  
+encoding procedures.
 .PP
-The \fItypePtr\fR argument to \fBTcl_CreateEncoding\fR contains information 
+The \fItypePtr\fR argument to \fBTcl_CreateEncoding\fR contains information
 about the name of the encoding and the procedures that will be called to
 convert between this encoding and UTF-8.  It is defined as follows:
 .PP
@@ -354,7 +320,7 @@ typedef struct Tcl_EncodingType {
    Tcl_EncodingFreeProc *\fIfreeProc\fR;
    ClientData \fIclientData\fR;
    int \fInullSize\fR;
-} \fBTcl_EncodingType\fR;  
+} \fBTcl_EncodingType\fR;
 .CE
 .PP
 The \fIencodingName\fR provides a string name for the encoding, by
@@ -384,12 +350,12 @@ type \fBTcl_EncodingConvertProc\fR:
 .CS
 typedef int \fBTcl_EncodingConvertProc\fR(
        ClientData \fIclientData\fR,
-        const char *\fIsrc\fR, 
-        int \fIsrcLen\fR, 
-        int \fIflags\fR, 
+        const char *\fIsrc\fR,
+        int \fIsrcLen\fR,
+        int \fIflags\fR,
        Tcl_EncodingState *\fIstatePtr\fR,
-        char *\fIdst\fR, 
-        int \fIdstLen\fR, 
+        char *\fIdst\fR,
+        int \fIdstLen\fR,
        int *\fIsrcReadPtr\fR,
        int *\fIdstWrotePtr\fR,
        int *\fIdstCharsPtr\fR);
@@ -405,12 +371,12 @@ documented at the top, to \fBTcl_ExternalToUtf\fR or
 \fBTcl_UtfToExternal\fR, with the following exceptions.  If the
 \fIsrcLen\fR argument to one of those high-level functions is negative,
 the value passed to the callback procedure will be the appropriate
-encoding-specific string length of \fIsrc\fR.  If any of the \fIsrcReadPtr\fR, 
+encoding-specific string length of \fIsrc\fR.  If any of the \fIsrcReadPtr\fR,
 \fIdstWrotePtr\fR, or \fIdstCharsPtr\fR arguments to one of the high-level
 functions is NULL, the corresponding value passed to the callback
 procedure will be a non-NULL location.
 .PP
-The callback procedure \fIfreeProc\fR, if non-NULL, should match the type 
+The callback procedure \fIfreeProc\fR, if non-NULL, should match the type
 \fBTcl_EncodingFreeProc\fR:
 .PP
 .CS
@@ -420,11 +386,11 @@ typedef void \fBTcl_EncodingFreeProc\fR(
 .PP
 This \fIfreeProc\fR function is called when the encoding is deleted.  The
 \fIclientData\fR parameter is the same as the \fIclientData\fR field
-specified to \fBTcl_CreateEncoding\fR when the encoding was created.  
+specified to \fBTcl_CreateEncoding\fR when the encoding was created.
 .PP
 \fBTcl_GetEncodingSearchPath\fR and \fBTcl_SetEncodingSearchPath\fR
 are called to access and set the list of filesystem directories searched
-for encoding data files.  
+for encoding data files.
 .PP
 The value returned by \fBTcl_GetEncodingSearchPath\fR
 is the value stored by the last successful call to
@@ -457,7 +423,7 @@ encoding files that can be loaded using the same mechanism.  These
 encoding files contain information about the tables and/or escape
 sequences used to map between an external encoding and Unicode.  The
 external encoding may consist of single-byte, multi-byte, or double-byte
-characters.  
+characters.
 .PP
 Each dynamically-loadable encoding is represented as a text file.  The
 initial line of the file, beginning with a
@@ -481,9 +447,9 @@ many Japanese computers.
 .IP "[4] \fBE\fR"
 An escape-sequence encoding, specifying that certain sequences of bytes
 do not represent characters, but commands that describe how following bytes
-should be interpreted.  
+should be interpreted.
 .PP
-The rest of the lines in the file depend on the type.  
+The rest of the lines in the file depend on the type.
 .PP
 Cases [1], [2], and [3] are collectively referred to as table-based encoding
 files.  The lines in a table-based encoding file are in the same
@@ -534,7 +500,7 @@ The third line of the file is three numbers.  The first number is the
 fallback character (in base 16) to use when converting from UTF-8 to this
 encoding.  The second number is a \fB1\fR if this file represents the
 encoding for a symbol font, or \fB0\fR otherwise.  The last number (in base
-10) is how many pages of data follow.  
+10) is how many pages of data follow.
 .PP
 Subsequent lines in the example above are pages that describe how to map
 from the encoding into 2-byte Unicode.  The first line in a page identifies
@@ -3,9 +3,9 @@
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
+'\"
 '\" This documents the C API introduced in TIP#235
-'\" 
+'\"
 .TH Tcl_Ensemble 3 8.5 Tcl "Tcl Library Procedures"
 .so man.macros
 .BS
@@ -185,7 +185,7 @@ the bound namespace. May be read and written using
 \fBTcl_GetEnsembleSubcommandList\fR and
 \fBTcl_SetEnsembleSubcommandList\fR respectively. The result of both
 of those functions is a Tcl result code (\fBTCL_OK\fR, or
-\fBTCL_ERROR\fR if the 
+\fBTCL_ERROR\fR if the
 token does not refer to an ensemble) and the list obtained from
 \fBTcl_GetEnsembleSubcommandList\fR should always be treated as
 immutable even if it is unshared.
@@ -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 Tcl_Eval 3 8.1 Tcl "Tcl Library Procedures"
 .so man.macros
 .BS
@@ -116,7 +116,7 @@ of the words for the Tcl command, one word in each value in
 a completion code and result just like \fBTcl_EvalObjEx\fR.
 The caller of \fBTcl_EvalObjv\fR has to manage the reference count of the
 elements of \fIobjv\fR, insuring that the values are valid until
-\fBTcl_EvalObjv\fR returns.  
+\fBTcl_EvalObjv\fR returns.
 .PP
 \fBTcl_Eval\fR is similar to \fBTcl_EvalObjEx\fR except that the script to
 be executed is supplied as a string instead of a value and no compilation
@@ -127,7 +127,7 @@ might be a UTF-8 special code.  The string is parsed and executed directly
 (using \fBTcl_EvalObjv\fR) instead of compiling it and executing the
 bytecodes.  In situations where it is known that the script will never be
 executed again, \fBTcl_Eval\fR may be faster than \fBTcl_EvalObjEx\fR.
- \fBTcl_Eval\fR returns a completion code and result just like 
+ \fBTcl_Eval\fR returns a completion code and result just like
 \fBTcl_EvalObjEx\fR.  Note: for backward compatibility with versions before
 Tcl 8.0, \fBTcl_Eval\fR copies the value result in \fIinterp\fR to
 \fIinterp->result\fR (use is deprecated) where it can be accessed directly.
@@ -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_Exit 3 8.5 Tcl "Tcl Library Procedures"
 .so man.macros
 .BS
@@ -120,7 +120,7 @@ If extension \fBA\fR registers its exit handlers before loading extension
 \fBB\fR, this ensures that any exit handlers for \fBB\fR will be executed
 before the exit handlers for \fBA\fR.
 .PP
-\fBTcl_Finalize\fR and \fBTcl_Exit\fR call \fBTcl_FinalizeThread\fR 
+\fBTcl_Finalize\fR and \fBTcl_Exit\fR call \fBTcl_FinalizeThread\fR
 and the thread exit handlers \fIafter\fR
 the process-wide exit handlers.  This is because thread finalization shuts
 down the I/O channel system, so any attempt at I/O by the global exit
@@ -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_ExprLong 3 7.0 Tcl "Tcl Library Procedures"
 .so man.macros
 .BS
@@ -30,7 +30,7 @@ int
 .AP Tcl_Interp *interp in
 Interpreter in whose context to evaluate \fIexpr\fR.
 .AP "const char" *expr in
-Expression to be evaluated.  
+Expression to be evaluated.
 .AP long *longPtr out
 Pointer to location in which to store the integer value of the
 expression.
@@ -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 Filesystem 3 8.4 Tcl "Tcl Library Procedures"
 .so man.macros
 .BS
@@ -464,8 +464,8 @@ directory for all files which match a given pattern. The appropriate
 function for the filesystem to which \fIpathPtr\fR belongs will be called.
 .PP
 The return value is a standard Tcl result indicating whether an error
-occurred in globbing. Error messages are placed in interp (unless 
-interp is NULL, which is allowed), but good results are placed in the 
+occurred in globbing. Error messages are placed in interp (unless
+interp is NULL, which is allowed), but good results are placed in the
 resultPtr given.
 .PP
 Note that the \fBglob\fR code implements recursive patterns internally, so
@@ -1256,8 +1256,8 @@ not, so code should be flexible to both possibilities.
 The return value is a standard Tcl result indicating whether an error
 occurred in the matching process. Error messages are placed in
 \fIinterp\fR, unless \fIinterp\fR in NULL in which case no error
-message need be generated; on a \fBTCL_OK\fR result, results should be 
-added to the \fIresultPtr\fR value given (which can be assumed to be a 
+message need be generated; on a \fBTCL_OK\fR result, results should be
+added to the \fIresultPtr\fR value given (which can be assumed to be a
 valid unshared Tcl list). The matches added
 to \fIresultPtr\fR should include any path prefix given in \fIpathPtr\fR
 (this usually means they will be absolute path specifications).
@@ -1265,7 +1265,7 @@ Note that if no matches are found, that simply leads to an empty
 result; errors are only signaled for actual file or filesystem
 problems which may occur during the matching process.
 .PP
-The \fBTcl_GlobTypeData\fR structure passed in the \fItypes\fR 
+The \fBTcl_GlobTypeData\fR structure passed in the \fItypes\fR
 parameter contains the following fields:
 .PP
 .CS
@@ -1,7 +1,7 @@
 '\"
 '\" Copyright (c) 1998-2000 by Scriptics Corporation.
 '\" All rights reserved.
-'\" 
+'\"
 .TH Tcl_GetHostName 3 8.3 Tcl "Tcl Library Procedures"
 .so man.macros
 .BS
@@ -18,7 +18,7 @@ const char *
 .SH DESCRIPTION
 .PP
 \fBTcl_GetHostName\fR is a utility procedure used by some of the
-Tcl commands.  It returns a pointer to a string containing the name 
+Tcl commands.  It returns a pointer to a string containing the name
 for the current machine, or an empty string if the name cannot be
 determined.  The string is statically allocated, and the caller must
 not modify of free it.
@@ -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_GetStdChannel 3 7.5 Tcl "Tcl Library Procedures"
 .so man.macros
 .BS
@@ -34,18 +34,18 @@ Tcl defines three special channels that are used by various I/O related
 commands if no other channels are specified.  The standard input channel
 has a channel name of \fBstdin\fR and is used by \fBread\fR and \fBgets\fR.
 The standard output channel is named \fBstdout\fR and is used by
-\fBputs\fR.  The standard error channel is named \fBstderr\fR and is used for 
+\fBputs\fR.  The standard error channel is named \fBstderr\fR and is used for
 reporting errors.  In addition, the standard channels are inherited by any
 child processes created using \fBexec\fR or \fBopen\fR in the absence of any
 other redirections.
 .PP
 The standard channels are actually aliases for other normal channels.  The
 current channel associated with a standard channel can be retrieved by calling
-\fBTcl_GetStdChannel\fR with one of 
+\fBTcl_GetStdChannel\fR with one of
 \fBTCL_STDIN\fR, \fBTCL_STDOUT\fR, or \fBTCL_STDERR\fR as the \fItype\fR.  The
 return value will be a valid channel, or NULL.
 .PP
-A new channel can be set for the standard channel specified by \fItype\fR 
+A new channel can be set for the standard channel specified by \fItype\fR
 by calling \fBTcl_SetStdChannel\fR with a new channel or NULL in the
 \fIchannel\fR argument.  If the specified channel is closed by a later call to
 \fBTcl_Close\fR, then the corresponding standard channel will automatically be
@@ -64,7 +64,7 @@ be corrected without contradicting the assumptions of some existing
 code that calls \fBTcl_SetStdChannel\fR.
 .PP
 If \fBTcl_GetStdChannel\fR is called before \fBTcl_SetStdChannel\fR, Tcl will
-construct a new channel to wrap the appropriate platform-specific standard 
+construct a new channel to wrap the appropriate platform-specific standard
 file handle.  If \fBTcl_SetStdChannel\fR is called before
 \fBTcl_GetStdChannel\fR, then the default channel will not be created.
 .PP
@@ -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_GetVersion 3 7.5 Tcl "Tcl Library Procedures"
 .so man.macros
 .BS
@@ -24,14 +24,14 @@ Minor version number of the Tcl library.
 The patch level of the Tcl library (or alpha or beta number).
 .AP Tcl_ReleaseType *type out
 The type of release, also indicates the type of patch level. Can be
-one of \fBTCL_ALPHA_RELEASE\fR, \fBTCL_BETA_RELEASE\fR, or 
+one of \fBTCL_ALPHA_RELEASE\fR, \fBTCL_BETA_RELEASE\fR, or
 \fBTCL_FINAL_RELEASE\fR.
 .BE

 .SH DESCRIPTION
 .PP
 \fBTcl_GetVersion\fR should be used to query the version number
-of the Tcl library at runtime.  This is useful when using a 
+of the Tcl library at runtime.  This is useful when using a
 dynamically loaded Tcl library or when writing a stubs-aware
 extension.  For instance, if you write an extension that is
 linked against the Tcl stubs library, it could be loaded into
@@ -39,7 +39,7 @@ a program linked to an older version of Tcl than you expected.
 Use \fBTcl_GetVersion\fR to verify that fact, and possibly to
 change the behavior of your extension.
 .PP
-\fBTcl_GetVersion\fR accepts NULL for any of the arguments. For instance if 
+\fBTcl_GetVersion\fR accepts NULL for any of the arguments. For instance if
 you do not care about the \fIpatchLevel\fR of the library, pass
 a NULL for the \fIpatchLevel\fR argument.

@@ -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_Hash 3 "" Tcl "Tcl Library Procedures"
 .so man.macros
 .BS
@@ -131,13 +131,13 @@ The pointer value is the key;  it need not (and usually does not)
 actually point to a string.
 .IP \fBTCL_CUSTOM_TYPE_KEYS\fR 25
 Keys are of arbitrary type, and are stored in the entry. Hashing
-and comparison is determined by \fItypePtr\fR. The Tcl_HashKeyType 
-structure is described in the section 
+and comparison is determined by \fItypePtr\fR. The Tcl_HashKeyType
+structure is described in the section
 \fBTHE TCL_HASHKEYTYPE STRUCTURE\fR below.
 .IP \fBTCL_CUSTOM_PTR_KEYS\fR 25
 Keys are pointers to an arbitrary type, and are stored in the entry. Hashing
-and comparison is determined by \fItypePtr\fR. The Tcl_HashKeyType 
-structure is described in the section 
+and comparison is determined by \fItypePtr\fR. The Tcl_HashKeyType
+structure is described in the section
 \fBTHE TCL_HASHKEYTYPE STRUCTURE\fR below.
 .IP \fIother\fR 25
 If \fIkeyType\fR is not one of the above,
@@ -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_IntObj 3 8.5 Tcl "Tcl Library Procedures"
 .so man.macros
 .BS
@@ -87,7 +87,7 @@ used to initialize a multi-precision integer value.
 .SH DESCRIPTION
 .PP
 These procedures are used to create, modify, and read Tcl values
-that hold integral values.  
+that hold integral values.
 .PP
 The different routines exist to accommodate different integral types in C
 with which values might be exchanged.  The C integral types for which Tcl
@@ -99,7 +99,7 @@ typedef defined to be whatever signed integral type covers at least the
 on the platform and the C compiler, the actual type might be
 \fBlong int\fR, \fBlong long int\fR, \fBint64\fR, or something else.
 The \fBmp_int\fR type is a multiple-precision integer type defined
-by the LibTomMath multiple-precision integer library.  
+by the LibTomMath multiple-precision integer library.
 .PP
 The \fBTcl_NewIntObj\fR, \fBTcl_NewLongObj\fR, \fBTcl_NewWideIntObj\fR,
 and \fBTcl_NewBignumObj\fR routines each create and return a new
@@ -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_Interp 3 7.5 Tcl "Tcl Library Procedures"
 .so man.macros
 .BS
@@ -76,7 +76,7 @@ and store a pointer to it in \fIinterp->result\fR.
 In this case, the command procedure must also set \fIinterp->freeProc\fR
 to the address of a procedure that can free the value, or \fBTCL_DYNAMIC\fR
 if the storage was allocated directly by Tcl or by a call to
-\fBTcl_Alloc\fR. 
+\fBTcl_Alloc\fR.
 If \fIinterp->freeProc\fR is non-zero, then Tcl will call \fIfreeProc\fR
 to free the space pointed to by \fIinterp->result\fR before it
 invokes the next command.
@@ -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_ListObj 3 8.0 Tcl "Tcl Library Procedures"
 .so man.macros
 .BS
@@ -64,7 +64,7 @@ Points to location where \fBTcl_ListObjGetElements\fR
 stores the number of element values in \fIlistPtr\fR.
 .AP Tcl_Obj ***objvPtr out
 A location where \fBTcl_ListObjGetElements\fR stores a pointer to an array
-of pointers to the element values of \fIlistPtr\fR.  
+of pointers to the element values of \fIlistPtr\fR.
 .AP int objc in
 The number of Tcl values that \fBTcl_NewListObj\fR
 will insert into a new list value,
@@ -75,7 +75,7 @@ the number of Tcl values to insert into \fIobjPtr\fR.
 An array of pointers to values.
 \fBTcl_NewListObj\fR will insert these values into a new list value
 and \fBTcl_ListObjReplace\fR will insert them into an existing \fIlistPtr\fR.
-Each value will become a separate list element.  
+Each value will become a separate list element.
 .AP int *intPtr out
 Points to location where \fBTcl_ListObjLength\fR
 stores the length of the list.
@@ -134,7 +134,7 @@ If no error occurs,
 the two procedures return \fBTCL_OK\fR after appending the values.
 .PP
 \fBTcl_NewListObj\fR and \fBTcl_SetListObj\fR
-create a new value or modify an existing value to hold 
+create a new value or modify an existing value to hold
 the \fIobjc\fR elements of the array referenced by \fIobjv\fR
 where each element is a pointer to a Tcl value.
 If \fIobjc\fR is less than or equal to zero,
@@ -67,7 +67,9 @@ The class to create the method in.
 The name of the method to create. Should not be NULL unless creating
 constructors or destructors.
 .AP int isPublic in
-A boolean flag saying whether the method is to be exported.
+A flag saying what the visibility of the method is. The only supported public
+values of this flag are 0 for a non-exported method, and 1 for an exported
+method.
 .AP Tcl_MethodType *methodTypePtr in
 A description of the type of the method to create, or the type of method to
 compare against.
@@ -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 NRE 3 8.6 Tcl "Tcl Library Procedures"
 .so man.macros
 .BS
@@ -45,7 +45,7 @@ Name of a new command to create.
 Implementation of a command that will be called whenever \fIcmdName\fR
 is invoked as a command in the unoptimized way.
 .AP Tcl_ObjCmdProc *nreProc in
-Implementation of a command that will be called whenever \fIcmdName\fR 
+Implementation of a command that will be called whenever \fIcmdName\fR
 is invoked and requested to conserve the C stack.
 .AP ClientData clientData in
 Arbitrary one-word value that will be passed to \fIproc\fR, \fInreProc\fR,
@@ -83,13 +83,13 @@ executing in the interpreter designated by \fIinterp\fR completes.
 to the function designated by \fIpostProcPtr\fR when it is invoked.
 .BE
 .SH DESCRIPTION
-.PP 
+.PP
 This series of C functions provides an interface whereby commands that
 are implemented in C can be evaluated, and invoke Tcl commands scripts
 and scripts, without consuming space on the C stack. The non-recursive
 evaluation is done by installing a \fItrampoline\fR, a small piece of
 code that invokes a command or script, and then executes a series of
-callbacks when the command or script returns. 
+callbacks when the command or script returns.
 .PP
 The \fBTcl_NRCreateCommand\fR function creates a Tcl command in the
 interpreter designated by \fIinterp\fR that is prepared to handle
@@ -149,7 +149,7 @@ The remaining arguments are as for \fBTcl_NREvalObjv\fR.
 \fBTcl_NREvalObj\fR, \fBTcl_NREvalObjv\fR and \fBTcl_NRCmdSwap\fR
 all accept a \fIflags\fR parameter, which is an OR-ed-together set of
 bits to control evaluation. At the present time, the only supported flag
-available to callers is \fBTCL_EVAL_GLOBAL\fR. 
+available to callers is \fBTCL_EVAL_GLOBAL\fR.
 .\" TODO: Again, this is a lie. Do we want to explain TCL_EVAL_INVOKE
 .\"       and TCL_EVAL_NOERR?
 If the \fBTCL_EVAL_GLOBAL\fR flag is set, the script or command is
@@ -255,7 +255,7 @@ int
    int objc,
    Tcl_Obj *const objv[])
 {
-    return \fBTcl_NRCallObjProc\fR(interp, \fITheCmdNRObjProc\fR, 
+    return \fBTcl_NRCallObjProc\fR(interp, \fITheCmdNRObjProc\fR,
            clientData, objc, objv);
 }
 .CE
@@ -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 Notifier 3 8.1 Tcl "Tcl Library Procedures"
 .so man.macros
 .BS
@@ -143,7 +143,7 @@ servicing at a future time.  Threaded applications work in a
 similar manner, except that there is a separate event queue for
 each thread containing a Tcl interpreter.
 \fBTcl_QueueEvent\fR is used (primarily
-by event sources) to add events to the event queue and 
+by event sources) to add events to the event queue and
 \fBTcl_DeleteEvents\fR is used to remove events from the queue without
 processing them.  In a threaded application, \fBTcl_QueueEvent\fR adds
 an event to the current thread's queue, and \fBTcl_ThreadQueueEvent\fR
@@ -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_Obj 3 8.5 Tcl "Tcl Library Procedures"
 .so man.macros
 .BS
@@ -94,7 +94,7 @@ Also, most Tcl values are only read and never modified.
 This is especially true for procedure arguments,
 which can be shared between the caller and the called procedure.
 Assignment and argument binding is done by
-simply assigning a pointer to the value. 
+simply assigning a pointer to the value.
 Reference counting is used to determine when it is safe to
 reclaim a value's storage.
 .PP
@@ -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_ObjType 3 8.0 Tcl "Tcl Library Procedures"
 .so man.macros
 .BS
@@ -76,8 +76,8 @@ in that case \fBTCL_ERROR\fR is returned.
 if possible.
 It creates a new internal representation for \fIobjPtr\fR
 appropriate for the target type \fItypePtr\fR
-and sets its \fItypePtr\fR member as determined by calling the 
-\fItypePtr->setFromAnyProc\fR routine.  
+and sets its \fItypePtr\fR member as determined by calling the
+\fItypePtr->setFromAnyProc\fR routine.
 Any internal representation for \fIobjPtr\fR's old type is freed.
 If an error occurs during conversion, it returns \fBTCL_ERROR\fR
 and leaves an error message in the result value for \fIinterp\fR
@@ -181,7 +181,7 @@ typedef void \fBTcl_UpdateStringProc\fR(
 It must always set \fIbytes\fR non-NULL before returning.
 We require the string representation's byte array
 to have a null after the last byte, at offset \fIlength\fR,
-and to have no null bytes before that; this allows string representations 
+and to have no null bytes before that; this allows string representations
 to be treated as conventional null character-terminated C strings.
 These restrictions are easily met by using Tcl's internal UTF encoding
 for the string representation, same as one would do for other
@@ -115,7 +115,7 @@ Used for error reporting and to look up a channel registered in it.
 The name of a local or network file.
 .AP "const char" *mode in
 Specifies how the file is to be accessed.  May have any of the values
-allowed for the \fImode\fR argument to the Tcl \fBopen\fR command.  
+allowed for the \fImode\fR argument to the Tcl \fBopen\fR command.
 .AP int permissions in
 POSIX-style permission flags such as 0644.  If a new file is created, these
 permissions will be set on the created file.
@@ -141,7 +141,7 @@ file descriptor, for Windows it is a HANDLE.
 OR-ed combination of \fBTCL_READABLE\fR and \fBTCL_WRITABLE\fR to indicate
 what operations are valid on \fIhandle\fR.
 .AP "const char" *channelName in
-The name of the channel. 
+The name of the channel.
 .AP int *modePtr out
 Points at an integer variable that will receive an OR-ed combination of
 \fBTCL_READABLE\fR and \fBTCL_WRITABLE\fR denoting whether the channel is
@@ -155,8 +155,8 @@ from a procedure such as \fBTcl_OpenFileChannel\fR.
 A pointer to a Tcl value in which to store the characters read from the
 channel.
 .AP int charsToRead in
-The number of characters to read from the channel.  If the channel's encoding 
-is \fBbinary\fR, this is equivalent to the number of bytes to read from the 
+The number of characters to read from the channel.  If the channel's encoding
+is \fBbinary\fR, this is equivalent to the number of bytes to read from the
 channel.
 .AP int appendFlag in
 If non-zero, data read from the channel will be appended to the value.
@@ -169,7 +169,7 @@ be large enough to hold this many bytes.
 .AP Tcl_Obj *lineObjPtr in/out
 A pointer to a Tcl value in which to store the line read from the
 channel.  The line read will be appended to the current value of the
-value. 
+value.
 .AP Tcl_DString *lineRead in/out
 A pointer to a Tcl dynamic string in which to store the line read from the
 channel.  Must have been initialized by the caller.  The line read will be
@@ -238,8 +238,8 @@ If an error occurs while opening the channel, \fBTcl_OpenFileChannel\fR
 returns NULL and records a POSIX error code that can be
 retrieved with \fBTcl_GetErrno\fR.
 In addition, if \fIinterp\fR is non-NULL, \fBTcl_OpenFileChannel\fR
-leaves an error message in \fIinterp\fR's result after any error.  
-As of Tcl 8.4, the value-based API \fBTcl_FSOpenFileChannel\fR should 
+leaves an error message in \fIinterp\fR's result after any error.
+As of Tcl 8.4, the value-based API \fBTcl_FSOpenFileChannel\fR should
 be used in preference to \fBTcl_OpenFileChannel\fR wherever possible.
 .PP
 The newly created channel is not registered in the supplied interpreter; to
@@ -360,7 +360,7 @@ the standard channels (\fBstdout\fR, \fBstderr\fR, \fBstdin\fR), and will return
 Code not associated with a Tcl interpreter can call
 \fBTcl_DetachChannel\fR with \fIinterp\fR as NULL, to indicate to Tcl
 that it no longer holds a reference to that channel. If this is the last
-reference to the channel, unlike \fBTcl_UnregisterChannel\fR, 
+reference to the channel, unlike \fBTcl_UnregisterChannel\fR,
 it will not be closed.
 .SH TCL_ISSTANDARDCHANNEL
 .PP
@@ -368,7 +368,7 @@ it will not be closed.
 three standard channels, \fBstdin\fR, \fBstdout\fR or \fBstderr\fR.
 If so, it returns 1, otherwise 0.
 .PP
-No attempt is made to check whether the given channel or the standard 
+No attempt is made to check whether the given channel or the standard
 channels are initialized or otherwise valid.
 .SH TCL_CLOSE
 .PP
@@ -402,7 +402,7 @@ corresponding calls to \fBTcl_UnregisterChannel\fR.
 .SH "TCL_READCHARS AND TCL_READ"
 .PP
 \fBTcl_ReadChars\fR consumes bytes from \fIchannel\fR, converting the bytes
-to UTF-8 based on the channel's encoding and storing the produced data in 
+to UTF-8 based on the channel's encoding and storing the produced data in
 \fIreadObjPtr\fR's string representation.  The return value of
 \fBTcl_ReadChars\fR is the number of characters, up to \fIcharsToRead\fR,
 that were stored in \fIreadObjPtr\fR.  If an error occurs while reading, the
@@ -450,7 +450,7 @@ extensions.  It consumes bytes from \fIchannel\fR and stores them in
 of \fBTcl_Read\fR is the number of bytes, up to \fIbytesToRead\fR, written in
 \fIreadBuf\fR.  The buffer produced by \fBTcl_Read\fR is not null-terminated.
 Its contents are valid from the zeroth position up to and excluding the
-position indicated by the return value.  
+position indicated by the return value.
 .PP
 \fBTcl_ReadRaw\fR is the same as \fBTcl_Read\fR but does not
 compensate for stacking. While \fBTcl_Read\fR (and the other functions
@@ -507,7 +507,7 @@ to be null-terminated and it outputs everything up to the null.
 .PP
 Data queued for output may not appear on the output device immediately, due
 to internal buffering.  If the data should appear immediately, call
-\fBTcl_Flush\fR after the call to \fBTcl_WriteChars\fR, or set the 
+\fBTcl_Flush\fR after the call to \fBTcl_WriteChars\fR, or set the
 \fB\-buffering\fR option on the channel to \fBnone\fR.  If you wish the data
 to appear as soon as a complete line is accepted for output, set the
 \fB\-buffering\fR option on the channel to \fBline\fR mode.
@@ -525,7 +525,7 @@ channel.  This is done even if the channel has no encoding.
 \fBTcl_WriteObj\fR is similar to \fBTcl_WriteChars\fR except it
 accepts a Tcl value whose contents will be output to the channel.  The
 UTF-8 characters in \fIwriteObjPtr\fR's string representation are converted
-to the channel's encoding and queued for output to \fIchannel\fR.  
+to the channel's encoding and queued for output to \fIchannel\fR.
 As a performance optimization, when writing to a channel with the encoding
 \fBbinary\fR, UTF-8 characters are not converted as they are written.
 Instead, the bytes in \fIwriteObjPtr\fR's internal representation as a
@@ -1,7 +1,7 @@
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
+'\"
 .TH Tcl_Panic 3 8.4 Tcl "Tcl Library Procedures"
 .so man.macros
 .BS
@@ -69,7 +69,7 @@ After \fBTcl_SetPanicProc\fR returns, any future calls to
 \fIformat\fR and \fIarg\fR arguments. \fIpanicProc\fR should avoid
 making calls into the Tcl library, or into other libraries that may
 call the Tcl library, since the original call to \fBTcl_Panic\fR
-indicates the Tcl library is not in a state of reliable operation.  
+indicates the Tcl library is not in a state of reliable operation.
 .PP
 The typical use of \fBTcl_SetPanicProc\fR arranges for the error message
 to be displayed or reported in a manner more suitable for the
@@ -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_ParseCommand 3 8.3 Tcl "Tcl Library Procedures"
 .so man.macros
 .BS
@@ -56,7 +56,7 @@ following \fIstart\fR up to the first null character.
 .AP int nested in
 Non-zero means that the script is part of a command substitution so an
 unquoted close bracket should be treated as a command terminator.  If zero,
-close brackets have no special meaning. 
+close brackets have no special meaning.
 .AP int append in
 Non-zero means that \fI*parsePtr\fR already contains valid tokens; the new
 tokens should be appended to those already present.  Zero means that
@@ -118,7 +118,7 @@ result, and no information is left at \fI*parsePtr\fR.
 enclosed in braces such as
 \fB{hello}\fR or \fB{string \et with \et tabs}\fR
 from the beginning of its argument \fIstart\fR.
-The first character of \fIstart\fR must be \fB{\fR. 
+The first character of \fIstart\fR must be \fB{\fR.
 If the braced string was parsed successfully,
 \fBTcl_ParseBraces\fR returns \fBTCL_OK\fR,
 fills in the structure pointed to by \fIparsePtr\fR
@@ -134,7 +134,7 @@ and no information is left at \fI*parsePtr\fR or \fI*termPtr\fR.
 \fBTcl_ParseQuotedString\fR parses a double-quoted string such as
 \fB"sum is [expr {$a+$b}]"\fR
 from the beginning of the argument \fIstart\fR.
-The first character of \fIstart\fR must be \fB\N'34'\fR. 
+The first character of \fIstart\fR must be \fB\N'34'\fR.
 If the double-quoted string was parsed successfully,
 \fBTcl_ParseQuotedString\fR returns \fBTCL_OK\fR,
 fills in the structure pointed to by \fIparsePtr\fR
@@ -150,7 +150,7 @@ and no information is left at \fI*parsePtr\fR or \fI*termPtr\fR.
 \fBTcl_ParseVarName\fR parses a Tcl variable reference such as
 \fB$abc\fR or \fB$x([expr {$index + 1}])\fR from the beginning of its
 \fIstart\fR argument.
-The first character of \fIstart\fR must be \fB$\fR. 
+The first character of \fIstart\fR must be \fB$\fR.
 If a variable name was parsed successfully, \fBTcl_ParseVarName\fR
 returns \fBTCL_OK\fR and fills in the structure pointed to by
 \fIparsePtr\fR with information about the structure of the variable name
@@ -184,7 +184,7 @@ a Tcl_Parse structure.  The tokens typically consist
 of all the tokens in a word or all the tokens that make up the index for
 a reference to an array variable.  \fBTcl_EvalTokensStandard\fR performs the
 substitutions requested by the tokens and concatenates the
-resulting values. 
+resulting values.
 The return value from \fBTcl_EvalTokensStandard\fR is a Tcl completion
 code with one of the values \fBTCL_OK\fR, \fBTCL_ERROR\fR,
 \fBTCL_RETURN\fR, \fBTCL_BREAK\fR, or \fBTCL_CONTINUE\fR, or possibly
@@ -242,7 +242,7 @@ character that terminates the last comment.
 If the command is not preceded by any comments, \fIcommentSize\fR is 0.
 \fBTcl_ParseCommand\fR also sets the \fIcommandStart\fR field
 to point to the first character of the first
-word in the command (skipping any comments and leading space) and 
+word in the command (skipping any comments and leading space) and
 \fIcommandSize\fR gives the total number of bytes in the command,
 including the character pointed to by \fIcommandStart\fR up to and
 including the newline, close bracket, or semicolon character that
@@ -350,7 +350,7 @@ just the \fBTCL_TOKEN_OPERATOR\fR token.
 Each operand is described by a \fBTCL_TOKEN_SUB_EXPR\fR token.
 Otherwise, the subexpression is a value described by
 one of the token types \fBTCL_TOKEN_WORD\fR, \fBTCL_TOKEN_TEXT\fR,
-\fBTCL_TOKEN_BS\fR, \fBTCL_TOKEN_COMMAND\fR, 
+\fBTCL_TOKEN_BS\fR, \fBTCL_TOKEN_COMMAND\fR,
 \fBTCL_TOKEN_VARIABLE\fR, and \fBTCL_TOKEN_SUB_EXPR\fR.
 The \fInumComponents\fR field
 counts the total number of sub-tokens that make up the subexpression;
@@ -389,7 +389,7 @@ is always 0.
 After \fBTcl_ParseCommand\fR returns, the first token pointed to by
 the \fItokenPtr\fR field of the
 Tcl_Parse structure always has type \fBTCL_TOKEN_WORD\fR or
-\fBTCL_TOKEN_SIMPLE_WORD\fR or \fBTCL_TOKEN_EXPAND_WORD\fR.  
+\fBTCL_TOKEN_SIMPLE_WORD\fR or \fBTCL_TOKEN_EXPAND_WORD\fR.
 It is followed by the sub-tokens
 that must be concatenated to produce the value of that word.
 The next token is the \fBTCL_TOKEN_WORD\fR or \fBTCL_TOKEN_SIMPLE_WORD\fR
@@ -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_PkgRequire 3 7.5 Tcl "Tcl Library Procedures"
 .so man.macros
 .BS
@@ -75,8 +75,8 @@ procedures do.
 .PP
 If \fBTcl_PkgPresent\fR or \fBTcl_PkgRequire\fR complete successfully
 they return a pointer to the version string for the version of the package
-that is provided in the interpreter (which may be different than 
-\fIversion\fR); if an error occurs they return NULL and leave an error 
+that is provided in the interpreter (which may be different than
+\fIversion\fR); if an error occurs they return NULL and leave an error
 message in the interpreter's result.
 .PP
 \fBTcl_PkgProvide\fR returns \fBTCL_OK\fR if it completes successfully;
@@ -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 Tcl_RegExpMatch 3 8.1 Tcl "Tcl Library Procedures"
 .so man.macros
 .BS
@@ -103,7 +103,7 @@ should be stored by \fBTcl_RegExpGetInfo\fR.
 \fBTcl_RegExpMatch\fR determines whether its \fIpattern\fR argument
 matches \fIregexp\fR, where \fIregexp\fR is interpreted
 as a regular expression using the rules in the \fBre_syntax\fR
-reference page. 
+reference page.
 If there is a match then \fBTcl_RegExpMatch\fR returns 1.
 If there is no match then \fBTcl_RegExpMatch\fR returns 0.
 If an error occurs in the matching process (e.g. \fIpattern\fR
@@ -111,7 +111,7 @@ is not a valid regular expression) then \fBTcl_RegExpMatch\fR
 returns \-1 and leaves an error message in the interpreter result.
 \fBTcl_RegExpMatchObj\fR is similar to \fBTcl_RegExpMatch\fR except it
 operates on the Tcl values \fItextObj\fR and \fIpatObj\fR instead of
-UTF strings. 
+UTF strings.
 \fBTcl_RegExpMatchObj\fR is generally more efficient than
 \fBTcl_RegExpMatch\fR, so it is the preferred interface.
 .PP
@@ -201,7 +201,7 @@ Compile extended regular expressions
 .PQ ERE s .
 This mode corresponds
 to the regular expression syntax recognized by Tcl 8.0 and earlier
-versions. 
+versions.
 .TP
 \fBTCL_REG_BASIC\fR
 Compile basic regular expressions
@@ -375,7 +375,7 @@ character in the string where a match could occur.  If a match was
 found, this will be the same as the beginning of the current match.
 If no match was found, then it indicates the earliest point at which a
 match might occur if additional text is appended to the string.  If it
-is no match is possible even with further text, this field will be set 
+is no match is possible even with further text, this field will be set
 to \-1.
 .SH "SEE ALSO"
 re_syntax(n)
@@ -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_SaveResult 3 8.1 Tcl "Tcl Library Procedures"
 .so man.macros
 .BS
@@ -67,7 +67,7 @@ a superset of the functions provided by the other routines,
 any new code should only make use of the more powerful routines.
 The older, weaker routines \fBTcl_SaveResult\fR, \fBTcl_RestoreResult\fR,
 and \fBTcl_DiscardResult\fR continue to exist only for the sake
-of existing programs that may already be using them.  
+of existing programs that may already be using them.
 .PP
 \fBTcl_SaveInterpState\fR takes a snapshot of those portions of
 interpreter state that make up the full result of script evaluation.
@@ -115,6 +115,6 @@ uninitialized state and cannot be used until another call to
 Once \fBTcl_SaveResult\fR is called to save the interpreter
 result, either \fBTcl_RestoreResult\fR or
 \fBTcl_DiscardResult\fR must be called to properly clean up the
-memory associated with the saved state.  
+memory associated with the saved state.
 .SH KEYWORDS
 result, state, interp
@@ -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_SetResult 3 8.0 Tcl "Tcl Library Procedures"
 .so man.macros
 .BS
@@ -164,7 +164,7 @@ The source interpreter will have its result reset by this operation.
 .SH "DEPRECATED INTERFACES"
 .SS "OLD STRING PROCEDURES"
 .PP
-Use of the following procedures (is deprecated
+Use of the following procedures is deprecated
 since they manipulate the Tcl result as a string.
 Procedures such as \fBTcl_SetObjResult\fR
 that manipulate the result as a value
@@ -212,7 +212,7 @@ As a migration aid, access can be restored with the compiler directive
 but this is meant only to offer life support to otherwise dead code.
 .SH "THE TCL_FREEPROC ARGUMENT TO TCL_SETRESULT"
 .PP
-\fBTcl_SetResult\fR's \fIfreeProc\fR argument specifies how 
+\fBTcl_SetResult\fR's \fIfreeProc\fR argument specifies how
 the Tcl system is to manage the storage for the \fIresult\fR argument.
 If \fBTcl_SetResult\fR or \fBTcl_SetObjResult\fR are called
 at a time when \fIinterp\fR holds a string result,
@@ -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_SetVar 3 8.1 Tcl "Tcl Library Procedures"
 .so man.macros
 .BS
@@ -86,7 +86,7 @@ These procedures are used to create, modify, read, and delete
 Tcl variables from C code.
 .PP
 \fBTcl_SetVar2Ex\fR, \fBTcl_SetVar\fR, \fBTcl_SetVar2\fR, and
-\fBTcl_ObjSetVar2\fR 
+\fBTcl_ObjSetVar2\fR
 will create a new variable or modify an existing one.
 These procedures set the given variable to the value
 given by \fInewValuePtr\fR or \fInewValue\fR and return a
@@ -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_StringObj 3 8.1 Tcl "Tcl Library Procedures"
 .so man.macros
 .BS
@@ -308,7 +308,7 @@ sprintf(buf, format, ...);
 \fBTcl_NewStringObj\fR(buf, -1);
 .CE
 .PP
-but with greater convenience and no need to 
+but with greater convenience and no need to
 determine \fBSOME_SUITABLE_LENGTH\fR. The formatting is done with the same
 core formatting engine used by \fBTcl_Format\fR.  This means the set of
 supported conversion specifiers is that of the \fBformat\fR command and
@@ -329,8 +329,8 @@ Tcl_Obj *objPtr = \fBTcl_ObjPrintf\fR("Value is %d", x);
 .PP
 If the value of \fIformat\fR contains internal inconsistencies or invalid
 specifier formats, the formatted string result produced by
-\fBTcl_ObjPrintf\fR will be an error message describing the error. 
-It is impossible however to provide runtime protection against 
+\fBTcl_ObjPrintf\fR will be an error message describing the error.
+It is impossible however to provide runtime protection against
 mismatches between the format and any subsequent arguments.
 Compile-time protection may be provided by some compilers.
 .PP
@@ -191,30 +191,30 @@ in braces or quotes.
 Backslash
 .PQ \e "" .
 .TP 7
-\e\fIooo\fR 
+\e\fIooo\fR
 .
-The digits \fIooo\fR (one, two, or three of them) give a eight-bit octal 
+The digits \fIooo\fR (one, two, or three of them) give a eight-bit octal
 value for the Unicode character that will be inserted, in the range
 \fI000\fR\(en\fI377\fR (i.e., the range U+000000\(enU+0000FF).
 The parser will stop just before this range overflows, or when
 the maximum of three digits is reached.  The upper bits of the Unicode
 character will be 0.
 .TP 7
-\e\fBx\fIhh\fR 
+\e\fBx\fIhh\fR
 .
 The hexadecimal digits \fIhh\fR (one or two of them) give an eight-bit
 hexadecimal value for the Unicode character that will be inserted.  The upper
 bits of the Unicode character will be 0 (i.e., the character will be in the
 range U+000000\(enU+0000FF).
 .TP 7
-\e\fBu\fIhhhh\fR 
+\e\fBu\fIhhhh\fR
 .
 The hexadecimal digits \fIhhhh\fR (one, two, three, or four of them) give a
 sixteen-bit hexadecimal value for the Unicode character that will be
 inserted.  The upper bits of the Unicode character will be 0 (i.e., the
 character will be in the range U+000000\(enU+00FFFF).
 .TP 7
-\e\fBU\fIhhhhhhhh\fR 
+\e\fBU\fIhhhhhhhh\fR
 .
 The hexadecimal digits \fIhhhhhhhh\fR (one up to eight of them) give a
 twenty-one-bit hexadecimal value for the Unicode character that will be
@@ -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 Tcl_Main 3 8.4 Tcl "Tcl Library Procedures"
 .so man.macros
 .BS
@@ -52,7 +52,7 @@ is a program
 like tclsh or wish that supports both interactive interpretation
 of Tcl and evaluation of a script contained in a file given as
 a command line argument.  \fBTcl_Main\fR is offered as a convenience
-to developers of shell applications, so they do not have to 
+to developers of shell applications, so they do not have to
 reproduce all of the code for proper initialization of the Tcl
 library and interactive shell operation.  Other styles of embedding
 Tcl in an application are not supported by \fBTcl_Main\fR.  Those
@@ -106,7 +106,7 @@ will not evaluate any startup script.
 and encoding set by the most recent \fBTcl_SetStartupScript\fR
 call in the same thread.  The stored file name is returned,
 and the stored encoding name is written to space pointed to
-by \fIencodingPtr\fR, when that is not NULL.  
+by \fIencodingPtr\fR, when that is not NULL.
 .PP
 The file name and encoding values managed by the routines
 \fBTcl_SetStartupScript\fR and \fBTcl_GetStartupScript\fR
@@ -136,7 +136,7 @@ commands, \fBTcl_Main\fR calls the procedure given by the
 .QW hook
 for the application to perform its own initialization of the interpreter
 created by \fBTcl_Main\fR, such as defining application-specific
-commands.  The application initialization routine might also 
+commands.  The application initialization routine might also
 call \fBTcl_SetStartupScript\fR to (re-)set the file and encoding
 to be used as a startup script.  The procedure must have an interface
 that matches the type \fBTcl_AppInitProc\fR:
@@ -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 Threads 3 "8.1" Tcl "Tcl Library Procedures"
 .so man.macros
 .BS
@@ -79,9 +79,10 @@ waited upon into it.
 .SH INTRODUCTION
 Beginning with the 8.1 release, the Tcl core is thread safe, which
 allows you to incorporate Tcl into multithreaded applications without
-customizing the Tcl core.  To enable Tcl multithreading support,
-you must include the \fB\-\|\-enable-threads\fR option to \fBconfigure\fR
-when you configure and compile your Tcl core.
+customizing the Tcl core.  Starting with the 8.6 release, Tcl
+multithreading support is on by default. To disable Tcl multithreading
+support, you must include the \fB\-\|\-disable-threads\fR option to
+\fBconfigure\fR when you configure and compile your Tcl core.
 .PP
 An important constraint of the Tcl threads implementation is that
 \fIonly the thread that created a Tcl interpreter can use that
@@ -126,7 +127,7 @@ will cause a memory leak.
 .PP
 The \fBTcl_GetThreadData\fR call returns a pointer to a block of
 thread-private data.  Its argument is a key that is shared by all threads
-and a size for the block of storage.  The storage is automatically 
+and a size for the block of storage.  The storage is automatically
 allocated and initialized to all zeros the first time each thread asks for it.
 The storage is automatically deallocated by \fBTcl_FinalizeThread\fR.
 .SS "SYNCHRONIZATION AND COMMUNICATION"
@@ -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_UtfToUpper 3 "8.1" Tcl "Tcl Library Procedures"
 .so man.macros
 .BS
@@ -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_TraceCommand 3 7.4 Tcl "Tcl Library Procedures"
 .so man.macros
 .BS
@@ -78,7 +78,7 @@ created.  \fIClientData\fR typically points to an application-specific
 data structure that describes what to do when \fIproc\fR is invoked.
 \fIOldName\fR gives the name of the command being renamed, and
 \fInewName\fR gives the name that the command is being renamed to (or
-an empty string or NULL when the command is being deleted.)
+NULL when the command is being deleted.)
 \fIFlags\fR is an OR'ed combination of bits potentially providing
 several pieces of information.  One of the bits \fBTCL_TRACE_RENAME\fR and
 \fBTCL_TRACE_DELETE\fR will be set in \fIflags\fR to indicate which
@@ -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_TraceVar 3 7.4 Tcl "Tcl Library Procedures"
 .so man.macros
 .BS
@@ -203,7 +203,7 @@ The procedures \fBTcl_TraceVar2\fR, \fBTcl_UntraceVar2\fR, and
 except that the name of the variable consists of two parts.
 \fIName1\fR gives the name of a scalar variable or array,
 and \fIname2\fR gives the name of an element within an array.
-When \fIname2\fR is NULL, 
+When \fIname2\fR is NULL,
 \fIname1\fR may contain both an array and an element name:
 if the name contains an open parenthesis and ends with a
 close parenthesis, then the value between the parentheses is
@@ -214,7 +214,7 @@ If \fIname2\fR is NULL and \fIname1\fR does not refer
 to an array element it means that either the variable is
 a scalar or the trace is to be set on the entire array rather
 than an individual element (see WHOLE-ARRAY TRACES below for
-more information). 
+more information).
 .SH "ACCESSING VARIABLES DURING TRACES"
 .PP
 During read, write, and array traces, the
@@ -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_TranslateFileName 3 8.1 Tcl "Tcl Library Procedures"
 .so man.macros
 .BS
@@ -34,7 +34,7 @@ anything stored here.
 This utility procedure translates a file name to a platform-specific form
 which, after being converted to the appropriate encoding, is suitable for
 passing to the local operating system.  In particular, it converts
-network names into native form and does tilde substitution.  
+network names into native form and does tilde substitution.
 .PP
 However, with the advent of the newer \fBTcl_FSGetNormalizedPath\fR and
 \fBTcl_FSGetNativePath\fR, there is no longer any need to use this
@@ -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_UniCharIsAlpha 3 "8.1" Tcl "Tcl Library Procedures"
 .so man.macros
 .BS
@@ -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_UpVar 3 7.4 Tcl "Tcl Library Procedures"
 .so man.macros
 .BS
@@ -40,7 +40,7 @@ an upvar-ed variable.
 One of \fBTCL_GLOBAL_ONLY\fR, \fBTCL_NAMESPACE_ONLY\fR or 0;  if non-zero,
 then \fIdestName\fR is a global or namespace variable;  otherwise it is
 local to the current procedure (or current namespace if no procedure is
-active). 
+active).
 .AP "const char" *name1 in
 First part of source variable's name (scalar name, or name of array
 without array index).
@@ -3,12 +3,12 @@
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
+'\"
 .TH Utf 3 "8.1" Tcl "Tcl Library Procedures"
 .so man.macros
 .BS
 .SH NAME
-Tcl_UniChar, Tcl_UniCharCaseMatch, Tcl_UniCharNcasecmp, Tcl_UniCharToUtf, Tcl_UtfToUniChar, Tcl_UniCharToUtfDString, Tcl_UtfToUniCharDString, Tcl_UniCharLen, Tcl_UniCharNcmp, Tcl_UtfCharComplete, Tcl_NumUtfChars, Tcl_UtfFindFirst, Tcl_UtfFindLast, Tcl_UtfNext, Tcl_UtfPrev, Tcl_UniCharAtIndex, Tcl_UtfAtIndex, Tcl_UtfBackslash \- routines for manipulating UTF-8 strings
+Tcl_UniChar, Tcl_UniCharToUtf, Tcl_UtfToUniChar, Tcl_UniCharToUtfDString, Tcl_UtfToUniCharDString, Tcl_UniCharLen, Tcl_UniCharNcmp, Tcl_UniCharNcasecmp, Tcl_UniCharCaseMatch, Tcl_UtfNcmp, Tcl_UtfNcasecmp, Tcl_UtfCharComplete, Tcl_NumUtfChars, Tcl_UtfFindFirst, Tcl_UtfFindLast, Tcl_UtfNext, Tcl_UtfPrev, Tcl_UniCharAtIndex, Tcl_UtfAtIndex, Tcl_UtfBackslash \- routines for manipulating UTF-8 strings
 .SH SYNOPSIS
 .nf
 \fB#include <tcl.h>\fR
@@ -48,7 +48,7 @@ int
 int
 \fBTcl_UtfCharComplete\fR(\fIsrc, length\fR)
 .sp
-int 
+int
 \fBTcl_NumUtfChars\fR(\fIsrc, length\fR)
 .sp
 const char *
@@ -109,7 +109,7 @@ Pointer to the beginning of a UTF-8 string.
 .AP int index in
 The index of a character (not byte) in the UTF-8 string.
 .AP int *readPtr out
-If non-NULL, filled with the number of bytes in the backslash sequence, 
+If non-NULL, filled with the number of bytes in the backslash sequence,
 including the backslash character.
 .AP char *dst out
 Buffer in which the bytes represented by the backslash sequence are stored.
@@ -142,7 +142,7 @@ end and dereference non-existent or random memory; if the source buffer
 is known to be null-terminated, this will not happen.  If the input is
 not in proper UTF-8 format, \fBTcl_UtfToUniChar\fR will store the first
 byte of \fIsrc\fR in \fI*chPtr\fR as a Tcl_UniChar between 0x0000 and
-0x00ff and return 1.  
+0x00ff and return 1.
 .PP
 \fBTcl_UniCharToUtfDString\fR converts the given Unicode string
 to UTF-8, storing the result in a previously initialized \fBTcl_DString\fR.
@@ -210,12 +210,12 @@ length is negative, all bytes up to the first null byte are used.
 \fBTcl_UtfFindFirst\fR corresponds to \fBstrchr\fR for UTF-8 strings.  It
 returns a pointer to the first occurrence of the Tcl_UniChar \fIch\fR
 in the null-terminated UTF-8 string \fIsrc\fR.  The null terminator is
-considered part of the UTF-8 string.  
+considered part of the UTF-8 string.
 .PP
 \fBTcl_UtfFindLast\fR corresponds to \fBstrrchr\fR for UTF-8 strings.  It
 returns a pointer to the last occurrence of the Tcl_UniChar \fIch\fR
 in the null-terminated UTF-8 string \fIsrc\fR.  The null terminator is
-considered part of the UTF-8 string.  
+considered part of the UTF-8 string.
 .PP
 Given \fIsrc\fR, a pointer to some location in a UTF-8 string,
 \fBTcl_UtfNext\fR returns a pointer to the next UTF-8 character in the
@@ -239,7 +239,7 @@ characters.  Behavior is undefined if a negative \fIindex\fR is given.
 .PP
 \fBTcl_UtfAtIndex\fR returns a pointer to the specified character (not
 byte) \fIindex\fR in the UTF-8 string \fIsrc\fR.  The source string must
-contain at least \fIindex\fR characters.  This is equivalent to calling 
+contain at least \fIindex\fR characters.  This is equivalent to calling
 \fBTcl_UtfNext\fR \fIindex\fR times.  If a negative \fIindex\fR is given,
 the return pointer points to the first character in the source string.
 .PP
@@ -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_WrongNumArgs 3 8.0 Tcl "Tcl Library Procedures"
 .so man.macros
 .BS
@@ -55,7 +55,7 @@ wrong # args: should be "foo bar fileName count"
 .PP
 \fIObjc\fR is usually 1, but may be 2 or more for commands like
 \fBstring\fR and the Tk widget commands, which use the first argument
-as a subcommand.  
+as a subcommand.
 .PP
 Some of the values in the \fIobjv\fR array may be abbreviations for
 a subcommand.  The command
@@ -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 after n 7.5 Tcl "Tcl Built-In Commands"
 .so man.macros
 .BS
@@ -47,7 +47,7 @@ The delayed command is formed by concatenating all the \fIscript\fR
 arguments in the same fashion as the \fBconcat\fR command.
 The command will be executed at global level (outside the context
 of any Tcl procedure).
-If an error occurs while executing the delayed command then 
+If an error occurs while executing the delayed command then
 the background error will be reported by the command
 registered with \fBinterp bgerror\fR.
 The \fBafter\fR command returns an identifier that can be used
@@ -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 append n "" Tcl "Tcl Built-In Commands"
 .so man.macros
 .BS
@@ -14,11 +14,11 @@ apply \- Apply an anonymous function
 .SH DESCRIPTION
 .PP
 The command \fBapply\fR applies the function \fIfunc\fR to the arguments
-\fIarg1 arg2 ...\fR and returns the result. 
+\fIarg1 arg2 ...\fR and returns the result.
 .PP
 The function \fIfunc\fR is a two element list \fI{args body}\fR or a three
 element list \fI{args body namespace}\fR (as if the
-\fBlist\fR command had been used). 
+\fBlist\fR command had been used).
 The first element \fIargs\fR specifies the formal arguments to
 \fIfunc\fR. The specification of the formal arguments \fIargs\fR
 is shared with the \fBproc\fR command, and is described in detail in the
@@ -96,7 +96,7 @@ set vbl abc
 .SH "SEE ALSO"
 proc(n), uplevel(n)
 .SH KEYWORDS
-anonymous function, argument, lambda, procedure, 
+anonymous function, argument, lambda, procedure,
 '\" Local Variables:
 '\" mode: nroff
 '\" End:
@@ -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 array n 8.3 Tcl "Tcl Built-In Commands"
 .so man.macros
 .BS
@@ -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 bgerror n 7.5 Tcl "Tcl Built-In Commands"
 .so man.macros
 .BS
@@ -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 binary n 8.0 Tcl "Tcl Built-In Commands"
 .so man.macros
 .BS
@@ -300,7 +300,7 @@ example,
 .CS
 \fBbinary format\fR s3 {3 -3 258 1}
 .CE
-will return a string equivalent to 
+will return a string equivalent to
 \fB\ex03\ex00\exfd\exff\ex02\ex01\fR.
 .RE
 .IP \fBS\fR 5
@@ -311,7 +311,7 @@ example,
 .CS
 \fBbinary format\fR S3 {3 -3 258 1}
 .CE
-will return a string equivalent to 
+will return a string equivalent to
 \fB\ex00\ex03\exff\exfd\ex01\ex02\fR.
 .RE
 .IP \fBt\fR 5
@@ -330,7 +330,7 @@ example,
 .CS
 \fBbinary format\fR i3 {3 -3 65536 1}
 .CE
-will return a string equivalent to 
+will return a string equivalent to
 \fB\ex03\ex00\ex00\ex00\exfd\exff\exff\exff\ex00\ex00\ex01\ex00\fR
 .RE
 .IP \fBI\fR 5
@@ -341,7 +341,7 @@ For example,
 .CS
 \fBbinary format\fR I3 {3 -3 65536 1}
 .CE
-will return a string equivalent to 
+will return a string equivalent to
 \fB\ex00\ex00\ex00\ex03\exff\exff\exff\exfd\ex00\ex01\ex00\ex00\fR
 .RE
 .IP \fBn\fR 5
@@ -397,7 +397,7 @@ on a Windows system running on an Intel Pentium processor,
 .CS
 \fBbinary format\fR f2 {1.6 3.4}
 .CE
-will return a string equivalent to 
+will return a string equivalent to
 \fB\excd\excc\excc\ex3f\ex9a\ex99\ex59\ex40\fR.
 .RE
 .IP \fBr\fR 5
@@ -418,7 +418,7 @@ Windows system running on an Intel Pentium processor,
 .CS
 \fBbinary format\fR d1 {1.6}
 .CE
-will return a string equivalent to 
+will return a string equivalent to
 \fB\ex9a\ex99\ex99\ex99\ex99\ex99\exf9\ex3f\fR.
 .RE
 .IP \fBq\fR 5
@@ -684,7 +684,7 @@ order.  For example,
 \fBbinary scan\fR \ex00\ex05\ex00\ex07\exff\exf0 S2S* var1 var2
 .CE
 will return \fB2\fR with \fB5 7\fR stored in \fIvar1\fR and \fB\-16\fR
-stored in \fIvar2\fR. 
+stored in \fIvar2\fR.
 .RE
 .IP \fBt\fR 5
 The data is interpreted as \fIcount\fR 16-bit signed integers
@@ -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 catch n "8.5" Tcl "Tcl Built-In Commands"
 .so man.macros
 .BS
@@ -43,7 +43,7 @@ value stored in \fIresultVarName\fR is the value returned from \fIscript\fR.
 .PP
 If the \fIoptionsVarName\fR argument is given, then the variable it
 names is set to a dictionary of return options returned by evaluation
-of \fIscript\fR.  Tcl specifies two entries that are always 
+of \fIscript\fR.  Tcl specifies two entries that are always
 defined in the dictionary: \fB\-code\fR and \fB\-level\fR.  When
 the return code from evaluation of \fIscript\fR is not \fBTCL_RETURN\fR,
 the value of the \fB\-level\fR entry will be 0, and the value
@@ -114,7 +114,7 @@ if { [\fBcatch\fR {open $someFile w} fid] } {
 .PP
 There are more complex examples of \fBcatch\fR usage in the
 documentation for the \fBreturn\fR command.
-.SH "SEE ALSO" 
+.SH "SEE ALSO"
 break(n), continue(n), dict(n), error(n), errorCode(n), errorInfo(n), info(n),
 return(n)
 .SH KEYWORDS
@@ -1,4 +1,4 @@
-'\" 
+'\"
 '\" Copyright (c) 2005-2006 Donal K. Fellows
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
@@ -200,7 +200,7 @@ generate an error.
 .TP
 \fB\-translation\fR \fImode\fR
 .TP
-\fB\-translation\fR \fB{\fIinMode outMode\fB}\fR 
+\fB\-translation\fR \fB{\fIinMode outMode\fB}\fR
 .
 In Tcl scripts the end of a line is always represented using a single
 newline character (\en).  However, in actual files and devices the end
@@ -240,7 +240,7 @@ all platforms Tcl chooses \fBcrlf\fR, for all Unix flavors, it chooses
 \fBcrlf\fR.  The default setting for \fB\-translation\fR is \fBauto\fR
 for both input and output.
 .TP
-\fBbinary\fR 
+\fBbinary\fR
 .
 No end-of-line translations are performed.  This is nearly identical
 to \fBlf\fR mode, except that in addition \fBbinary\fR mode also sets
@@ -287,12 +287,14 @@ slow destinations like network sockets.
 .RS
 .PP
 The \fBchan copy\fR command transfers data from \fIinputChan\fR until
-end of file or \fIsize\fR bytes have been transferred. If no
-\fB\-size\fR argument is given, then the copy goes until end of file.
-All the data read from \fIinputChan\fR is copied to \fIoutputChan\fR.
-Without the \fB\-command\fR option, \fBchan copy\fR blocks until the
-copy is complete and returns the number of bytes written to
-\fIoutputChan\fR.
+end of file or \fIsize\fR bytes or characters have been transferred;
+\fIsize\fR is in bytes if the two channels are using the same encoding,
+and is in characters otherwise.  If no \fB\-size\fR argument is given,
+then the copy goes until end of file. All the data read from
+\fIinputChan\fR is copied to \fIoutputChan\fR.  Without the
+\fB\-command\fR option, \fBchan copy\fR blocks until the copy is
+complete and returns the number of bytes or characters (using the same
+rules as for the \fB\-size\fR option) written to \fIoutputChan\fR.
 .PP
 The \fB\-command\fR argument makes \fBchan copy\fR work in the
 background.  In this case it returns immediately and the
@@ -530,8 +532,8 @@ only those channel names that match it (according to the rules of
 .
 Depending on whether \fImode\fR is \fBinput\fR or \fBoutput\fR,
 returns the number of
-bytes of input or output (respectively) currently buffered 
-internally for \fIchannelId\fR (especially useful in a readable event 
+bytes of input or output (respectively) currently buffered
+internally for \fIchannelId\fR (especially useful in a readable event
 callback to impose application-specific limits on input line lengths to avoid
 a potential denial-of-service attack where a hostile user crafts
 an extremely long line that exceeds the available memory to buffer it).
@@ -546,7 +548,19 @@ separately \fBstderr\fR and \fBstdout\fR from a subprocess. To do
 this, spawn with "2>@" or
 ">@" redirection operators onto the write side of a pipe, and then
 immediately close it in the parent. This is necessary to get an EOF on
-the read side once the child has exited or otherwise closed its output. 
+the read side once the child has exited or otherwise closed its output.
+.RS
+.PP
+Note that the pipe buffering semantics can vary at the operating system level
+substantially; it is not safe to assume that a write performed on the output
+side of the pipe will appear instantly to the input side. This is a
+fundamental difference and Tcl cannot conceal it. The overall stream semantics
+\fIare\fR compatible, so blocking reads and writes will not see most of the
+differences, but the details of what exactly gets written when are not. This
+is most likely to show up when using pipelines for testing; care should be
+taken to ensure that deadlocks do not occur and that potential short reads are
+allowed for.
+.RE
 .VE 8.6
 .TP
 \fBchan pop \fIchannelId\fR
@@ -16,13 +16,13 @@ package require \fBTcl 8.5\fR
 .sp
 \fBclock format\fR \fItimeVal\fR ?\fI\-option value\fR...?
 .sp
-\fBclock microseconds\fR 
+\fBclock microseconds\fR
 .sp
-\fBclock milliseconds\fR 
+\fBclock milliseconds\fR
 .sp
 \fBclock scan\fR \fIinputString\fR ?\fI\-option value\fR...?
 .sp
-\fBclock seconds\fR 
+\fBclock seconds\fR
 .sp
 .BE
 .SH "DESCRIPTION"
@@ -58,10 +58,10 @@ Formats a time that is expressed as an integer number of seconds into a format
 intended for consumption by users or external programs.
 See \fBFORMATTING TIMES\fR for a full description.
 .TP
-\fBclock microseconds\fR 
+\fBclock microseconds\fR
 Returns the current time as an integer number of microseconds.  See \fBHIGH RESOLUTION TIMERS\fR for a full description.
 .TP
-\fBclock milliseconds\fR 
+\fBclock milliseconds\fR
 Returns the current time as an integer number of milliseconds.  See \fBHIGH RESOLUTION TIMERS\fR for a full description.
 .TP
 \fBclock scan\fR \fIinputString\fR ?\fI\-option value\fR...?
@@ -69,7 +69,7 @@ Scans a time that is expressed as a character string and produces an
 integer number of seconds.
 See \fBSCANNING TIMES\fR for a full description.
 .TP
-\fBclock seconds\fR 
+\fBclock seconds\fR
 Returns the current time as an integer number of seconds.
 .SS "PARAMETERS"
 .TP
@@ -113,7 +113,7 @@ and their interpretation, are described under \fBFORMAT GROUPS\fR.
 On \fBclock format\fR, the default format is
 .PP
 .CS
-%a %b %d %H:%M:%S %z %Y
+%a %b %d %H:%M:%S %Z %Y
 .CE
 .PP
 On \fBclock scan\fR, the lack of a \fB\-format\fR option indicates that a
@@ -525,7 +525,7 @@ string of the same meaning in the locale, to indicate whether \fB%Y\fR refers
 to years before or after Year 1 of the Common Era.  On input, accepts
 the string \fBB.C.E.\fR, \fBB.C.\fR, \fBC.E.\fR, \fBA.D.\fR, or the
 abbreviation appropriate to the current locale, and uses it to fix
-whether \fB%Y\fR refers to years before or after Year 1 of the 
+whether \fB%Y\fR refers to years before or after Year 1 of the
 Common Era.
 .TP
 \fB%Ex\fR
@@ -684,8 +684,8 @@ ISO8601 week number.
 \fB%w\fR
 On output, produces the ordinal number of the day of the week
 (Sunday==0; Saturday==6).  On input, accepts a single digit and
-interprets it as the day of the week; Sunday may be represented as 
-either 0 or 7.  Note that \fB%w\fR is not the ISO8601 weekday number, 
+interprets it as the day of the week; Sunday may be represented as
+either 0 or 7.  Note that \fB%w\fR is not the ISO8601 weekday number,
 which is produced and accepted by \fB%u\fR.
 .TP
 \fB%W\fR
@@ -765,7 +765,7 @@ The local time zone from the Control Panel on Windows systems.
 The C library's idea of the local time zone, as defined by the
 \fBmktime\fR and \fBlocaltime\fR functions.
 .PP
-In case [1] \fIonly,\fR the string is tested to see if it is one 
+In case [1] \fIonly,\fR the string is tested to see if it is one
 of the strings:
 .PP
 .CS
@@ -783,7 +783,7 @@ of the strings:
 If it is a string in the above list, it designates a known
 time zone, and is interpreted as such.
 .PP
-For time zones in case [1] that do not match any of the above strings, 
+For time zones in case [1] that do not match any of the above strings,
 and always for cases [2]-[6], the following rules apply.
 .PP
 If the time zone begins with a colon, it is one of a
@@ -909,7 +909,7 @@ giving an explicit \fB\-format\fR option to the \fBclock scan\fR command.
 .TP
 \fIrelative time\fR
 A specification relative to the current time.  The format is \fBnumber
-unit\fR. Acceptable units are \fByear\fR, \fBfortnight\fR, 
+unit\fR. Acceptable units are \fByear\fR, \fBfortnight\fR,
 \fBmonth\fR, \fBweek\fR, \fBday\fR,
 \fBhour\fR, \fBminute\fR (or \fBmin\fR), and \fBsecond\fR (or \fBsec\fR).  The
 unit can be specified as a singular or plural, as in \fB3 weeks\fR.
@@ -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 dde n 1.4 dde "Tcl Bundled Packages"
 .so man.macros
 .BS
@@ -85,7 +85,7 @@ the command returns immediately with no error.
 .VS 8.6
 Without the \fB\-binary\fR option all data will be sent in unicode. For
 dde clients which don't implement the CF_UNICODE clipboard format, this
-will automatically be translated to the system encoding. You can use 
+will automatically be translated to the system encoding. You can use
 the \fB\-binary\fR option in combination with the result of
 \fBencoding convertto\fR to send data in any other encoding.
 .VE 8.6
@@ -102,7 +102,7 @@ application.
 .VS 8.6
 Without the \fB\-binary\fR option all data will be sent in unicode. For
 dde clients which don't implement the CF_UNICODE clipboard format, this
-will automatically be translated to the system encoding. You can use 
+will automatically be translated to the system encoding. You can use
 the \fB\-binary\fR option in combination with the result of
 \fBencoding convertto\fR to send data in any other encoding.
 .VE 8.6
@@ -1,9 +1,9 @@
 '\"
 '\" Copyright (c) 1998 by Scriptics Corporation.
-'\" 
+'\"
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\" 
+'\"
 .TH encoding n "8.1" Tcl "Tcl Built-In Commands"
 .so man.macros
 .BS
@@ -67,7 +67,7 @@ searchable directory, that element is ignored.
 \fBencoding names\fR
 .
 Returns a list containing the names of all of the encodings that are
-currently available. 
+currently available.
 The encodings
 .QW utf-8
 and
@@ -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 error n "" Tcl "Tcl Built-In Commands"
 .so man.macros
 .BS
@@ -28,7 +28,7 @@ the Tcl interpreter adds information to the \fB\-errorinfo\fR
 return option.  If the \fIinfo\fR argument is present, it is
 used to initialize the \fB\-errorinfo\fR return options and
 the first increment of unwind information
-will not be added by the Tcl interpreter.  
+will not be added by the Tcl interpreter.
 In other
 words, the command containing the \fBerror\fR command will not appear
 in the stack trace; in its place will be \fIinfo\fR.
@@ -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 exec n 8.5 Tcl "Tcl Built-In Commands"
 .so man.macros
 .BS
@@ -220,7 +220,7 @@ discarded.
 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
-error will be discarded.  
+error will be discarded.
 .PP
 Either forward or backward slashes are accepted as path separators for
 arguments to Tcl commands.  When executing an application, the path name
@@ -231,7 +231,7 @@ backslashes only in paths.  Any arguments to an application that specify a
 path name with forward slashes will not automatically be converted to use
 the backslash character.  If an argument contains forward slashes as the
 path separator, it may or may not be recognized as a path name, depending on
-the program.  
+the program.
 .PP
 Additionally, when calling a 16-bit DOS or Windows 3.X application, all path
 names must use the short, cryptic, path format (e.g., using
@@ -269,17 +269,14 @@ present, as is done when launching applications under wish.  It is desirable
 to have console applications hidden and detached.  This is a designed-in
 limitation as \fBexec\fR wants to communicate over pipes.  The Expect
 extension addresses this issue when communicating with a TUI application.
-.RE
-.TP
-\fBWindows NT\fR
-.
+.PP
 When attempting to execute an application, \fBexec\fR first searches for
-the name as it was specified.  Then, in order, \fB.com\fR, \fB.exe\fR, and
-\fB.bat\fR are appended to the end of the specified name and it searches
+the name as it was specified.  Then, in order,
+\fB.com\fR, \fB.exe\fR, \fB.bat\fR and \fB.cmd\fR
+are appended to the end of the specified name and it searches
 for the longer name.  If a directory name was not specified as part of the
 application name, the following directories are automatically searched in
 order when attempting to locate the application:
-.RS
 .IP \(bu 3
 The directory from which the Tcl executable was loaded.
 .IP \(bu 3
@@ -299,67 +296,6 @@ the caller must prepend the desired command with
 because built-in commands are not implemented using executables.
 .RE
 .TP
-\fBWindows 9x\fR
-.
-When attempting to execute an application, \fBexec\fR first searches for
-the name as it was specified.  Then, in order, \fB.com\fR, \fB.exe\fR, and
-\fB.bat\fR are appended to the end of the specified name and it searches
-for the longer name.  If a directory name was not specified as part of the
-application name, the following directories are automatically searched in
-order when attempting to locate the application:
-.RS
-.IP \(bu 3
-The directory from which the Tcl executable was loaded.
-.IP \(bu 3
-The current directory.
-.IP \(bu 3
-The Windows 9x system directory.
-.IP \(bu 3
-The Windows 9x home directory.
-.IP \(bu 3
-The directories listed in the path.
-.RE
-.RS
-.PP
-In order to execute shell built-in commands like \fBdir\fR and \fBcopy\fR,
-the caller must prepend the desired command with
-.QW "\fBcommand.com /c\0\fR"
-because built-in commands are not implemented using executables.
-.PP
-Once a 16-bit DOS application has read standard input from a console and 
-then quit, all subsequently run 16-bit DOS applications will see the 
-standard input as already closed.  32-bit applications do not have this
-problem and will run correctly, even after a 16-bit DOS application thinks 
-that standard input is closed.  There is no known workaround for this bug
-at this time.
-.PP
-Redirection between the \fBNUL:\fR device and a 16-bit application does not
-always work.  When redirecting from \fBNUL:\fR, some applications may hang,
-others will get an infinite stream of
-.QW 0x01
-bytes, and some will actually
-correctly get an immediate end-of-file; the behavior seems to depend upon 
-something compiled into the application itself.  When redirecting greater than
-4K or so to \fBNUL:\fR, some applications will hang.  The above problems do not
-happen with 32-bit applications.  
-.PP
-All DOS 16-bit applications are run synchronously.  All standard input from
-a pipe to a 16-bit DOS application is collected into a temporary file; the
-other end of the pipe must be closed before the 16-bit DOS application
-begins executing.  All standard output or error from a 16-bit DOS
-application to a pipe is collected into temporary files; the application
-must terminate before the temporary files are redirected to the next stage
-of the pipeline.  This is due to a workaround for a Windows 95 bug in the
-implementation of pipes, and is how the standard Windows 95 DOS shell
-handles pipes itself.
-.PP
-Certain applications, such as \fBcommand.com\fR, should not be executed
-interactively.  Applications which directly access the console window,
-rather than reading from their standard input and writing to their standard
-output may fail, hang Tcl, or even hang the system if their own private
-console window is not available to them.
-.RE
-.TP
 \fBUnix\fR (including Mac OS X)
 .
 The \fBexec\fR command is fully functional and works as described.
@@ -35,7 +35,7 @@ proc main {} {

 if {[catch {main} msg options]} {
    puts stderr "unexpected script error: $msg"
-    if {[info exist env(DEBUG)]} {
+    if {[info exists env(DEBUG)]} {
        puts stderr "---- BEGIN TRACE ----"
        puts stderr [dict get $options -errorinfo]
        puts stderr "---- END TRACE ----"
@@ -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 expr n 8.5 Tcl "Tcl Built-In Commands"
 .so man.macros
 .BS
@@ -398,7 +398,7 @@ 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 
+However, because a few unbraced expressions
 need two rounds of substitutions,
 the bytecode compiler must emit
 additional instructions to handle this situation.
@@ -1,4 +1,4 @@
-'\" 
+'\"
 '\" Copyright (c) 1995-1996 Sun Microsystems, Inc.
 '\"
 '\" See the file "license.terms" for information on usage and redistribution
@@ -125,7 +125,7 @@ generate an error.
 .TP
 \fB\-translation\fR \fImode\fR
 .TP
-\fB\-translation\fR \fB{\fIinMode outMode\fB}\fR 
+\fB\-translation\fR \fB{\fIinMode outMode\fB}\fR
 .
 In Tcl scripts the end of a line is always represented using a single
 newline character (\en).  However, in actual files and devices the end of
@@ -163,7 +163,7 @@ Tcl chooses \fBcrlf\fR, for all Unix flavors, it chooses \fBlf\fR, and
 for the various flavors of Windows it chooses \fBcrlf\fR.  The default
 setting for \fB\-translation\fR is \fBauto\fR for both input and output.
 .TP
-\fBbinary\fR 
+\fBbinary\fR
 .
 No end-of-line translations are performed.  This is nearly identical to
 \fBlf\fR mode, except that in addition \fBbinary\fR mode also sets the
@@ -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 fcopy n 8.0 Tcl "Tcl Built-In Commands"
 .so man.macros
 .BS
@@ -23,20 +23,23 @@ avoid extra copies and to avoid buffering too much data in
 main memory when copying large files to slow destinations like
 network sockets.
 .PP
-The \fBfcopy\fR 
+The \fBfcopy\fR
 command transfers data from \fIinchan\fR until end of file
-or \fIsize\fR bytes have been 
-transferred. If no \fB\-size\fR argument is given,
+or \fIsize\fR bytes or characters have been
+transferred; \fIsize\fR is in bytes if the two channels are using the
+same encoding, and is in characters otherwise.
+If no \fB\-size\fR argument is given,
 then the copy goes until end of file.
 All the data read from \fIinchan\fR is copied to \fIoutchan\fR.
 Without the \fB\-command\fR option, \fBfcopy\fR blocks until the copy is complete
-and returns the number of bytes written to \fIoutchan\fR.
+and returns the number of bytes or characters (using the same rules as
+for the \fB\-size\fR option) written to \fIoutchan\fR.
 .PP
 The \fB\-command\fR argument makes \fBfcopy\fR work in the background.
 In this case it returns immediately and the \fIcallback\fR is invoked
 later when the copy completes.
 The \fIcallback\fR is called with
-one or two additional 
+one or two additional
 arguments that indicates how many bytes were written to \fIoutchan\fR.
 If an error occurred during the background copy, the second argument is the
 error string associated with the error.
@@ -109,7 +112,7 @@ fconfigure $out -translation binary
 This second example shows how the callback gets
 passed the number of bytes transferred.
 It also uses vwait to put the application into the event loop.
-Of course, this simplified example could be done without the command 
+Of course, this simplified example could be done without the command
 callback.
 .PP
 .CS
@@ -174,3 +177,6 @@ vwait done
 eof(n), fblocked(n), fconfigure(n), file(n)
 .SH KEYWORDS
 blocking, channel, end of line, end of file, nonblocking, read, translation
+'\" Local Variables:
+'\" mode: nroff
+'\" End:
@@ -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 file n 8.3 Tcl "Tcl Built-In Commands"
 .so man.macros
 .BS
@@ -23,7 +23,7 @@ substitution is done before executing the command (see the manual entry for
 file name.  Any unique abbreviation for \fIoption\fR is acceptable.  The
 valid options are:
 .TP
-\fBfile atime \fIname\fR ?\fBtime\fR?
+\fBfile atime \fIname\fR ?\fItime\fR?
 .
 Returns a decimal string giving the time at which file \fIname\fR was last
 accessed.  If \fItime\fR is specified, it is an access time to set
@@ -34,9 +34,9 @@ generated.  On Windows, FAT file systems do not support access time.
 .TP
 \fBfile attributes \fIname\fR
 .TP
-\fBfile attributes \fIname\fR ?\fBoption\fR?
+\fBfile attributes \fIname\fR ?\fIoption\fR?
 .TP
-\fBfile attributes \fIname\fR ?\fBoption value option value...\fR?
+\fBfile attributes \fIname\fR ?\fIoption value option value...\fR?
 .
 This subcommand returns or sets platform specific values associated
 with a file. The first form returns a list of the platform specific
@@ -80,7 +80,7 @@ set to the value 0, which results in the resource fork being stripped
 off the file.
 .RE
 .TP
-\fBfile channels ?\fIpattern\fR?
+\fBfile channels\fR ?\fIpattern\fR?
 .
 If \fIpattern\fR is not specified, returns a list of names of all
 registered open channels in this interpreter.  If \fIpattern\fR is
@@ -141,7 +141,7 @@ returned.  For example,
 \fBfile dirname\fR c:/
 .CE
 .PP
-returns \fBc:/\fR. 
+returns \fBc:/\fR.
 .PP
 Note that tilde substitution will only be
 performed if it is necessary to complete the command. For example,
@@ -162,7 +162,9 @@ returns \fB/home\fR (or something similar).
 \fBfile executable \fIname\fR
 .
 Returns \fB1\fR if file \fIname\fR is executable by the current user,
-\fB0\fR otherwise.  
+\fB0\fR otherwise. On Windows, which does not have an executable attribute,
+the command treats all directories and any files with extensions
+\fBexe\fR, \fBcom\fR, \fBcmd\fR or \fBbat\fR as executable.
 .TP
 \fBfile exists \fIname\fR
 .
@@ -203,7 +205,7 @@ is always canonical for the current platform: \fB/\fR for Unix and
 Windows.
 .RE
 .TP
-\fBfile link ?\fI\-linktype\fR? \fIlinkName\fR ?\fItarget\fR?
+\fBfile link\fR ?\fI\-linktype\fR? \fIlinkName\fR ?\fItarget\fR?
 .
 If only one argument is given, that argument is assumed to be
 \fIlinkName\fR, and this command returns the value of the link given by
@@ -241,11 +243,9 @@ as relative to the cwd).  Furthermore,
 paths are always expanded
 to absolute form.  When creating links on filesystems that either do not
 support any links, or do not support the specific type requested, an
-error message will be returned.  In particular Windows 95, 98 and ME do
-not support any links at present, but most Unix platforms support both
-symbolic and hard links (the latter for files only) and Windows
-NT/2000/XP (on NTFS drives) support symbolic
-directory links and hard file links.
+error message will be returned.  Most Unix platforms support both
+symbolic and hard links (the latter for files only). Windows
+supports symbolic directory links and hard file links on NTFS drives.
 .RE
 .TP
 \fBfile lstat \fIname varName\fR
@@ -257,7 +257,7 @@ is for the link rather than the file it refers to.  On systems that
 do not support symbolic links this option behaves exactly the same
 as the \fBstat\fR option.
 .TP
-\fBfile mkdir ?\fIdir\fR ...?
+\fBfile mkdir\fR ?\fIdir\fR ...?
 .
 Creates each directory specified.  For each pathname \fIdir\fR specified,
 this command will create all non-existing parent directories as
@@ -302,7 +302,7 @@ operate on the actual symbolic link itself (for example \fBfile delete\fR,
 \fBfile rename\fR, \fBfile copy\fR are defined to operate on symbolic
 links, not on the things that they point to).
 .TP
-\fBfile owned \fIname\fR 
+\fBfile owned \fIname\fR
 .
 Returns \fB1\fR if file \fIname\fR is owned by the current user, \fB0\fR
 otherwise.
@@ -320,7 +320,7 @@ type is \fBvolumerelative\fR.
 \fBfile readable \fIname\fR
 .
 Returns \fB1\fR if file \fIname\fR is readable by the current user,
-\fB0\fR otherwise. 
+\fB0\fR otherwise.
 .TP
 \fBfile readlink \fIname\fR
 .
@@ -358,7 +358,7 @@ component of \fIname\fR does not contain a dot, then returns \fIname\fR.
 .TP
 \fBfile separator\fR ?\fIname\fR?
 .
-If no argument is given, returns the character which is used to separate 
+If no argument is given, returns the character which is used to separate
 path segments for native files on this platform.  If a path is given,
 the filesystem responsible for that path is asked to return its
 separator character.  If no file system accepts \fIname\fR, an error
@@ -429,7 +429,7 @@ If the file does not belong to any filesystem, an error is generated.
 .
 Returns all of the characters in the last filesystem component of
 \fIname\fR.  Any trailing directory separator in \fIname\fR is ignored.
-If \fIname\fR contains no separators then returns \fIname\fR.  So, 
+If \fIname\fR contains no separators then returns \fIname\fR.  So,
 \fBfile tail a/b\fR, \fBfile tail a/b/\fR and \fBfile tail b\fR all
 return \fBb\fR.
 .TP
@@ -459,7 +459,7 @@ Returns a string giving the type of file \fIname\fR, which will be one of
 \fBfifo\fR, \fBlink\fR, or \fBsocket\fR.
 .TP
 \fBfile volumes\fR
-. 
+.
 Returns the absolute paths to the volumes mounted on the system, as a
 proper Tcl list.  Without any virtual filesystems mounted as root
 volumes, on UNIX, the command will always return
@@ -480,14 +480,13 @@ Returns \fB1\fR if file \fIname\fR is writable by the current user,
 \fBUnix\fR\0\0\0\0\0\0\0
 .
 These commands always operate using the real user and group identifiers,
-not the effective ones. 
+not the effective ones.
 .TP
 \fBWindows\fR\0\0\0\0
 .
-The \fBfile owned\fR subcommand currently always reports that the current user
-is the owner of the file, without regard for what the operating system
-believes to be true, making an ownership test useless. This issue (#3613671)
-may be fixed in a future release of Tcl.
+The \fBfile owned\fR subcommand uses the user identifier (SID) of
+the process token, not the thread token which may be impersonating
+some other user.
 .SH EXAMPLES
 .PP
 This procedure shows how to search for C files in a given directory
@@ -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 fileevent n 7.5 Tcl "Tcl Built-In Commands"
 .so man.macros
 .BS
@@ -112,7 +112,7 @@ buggy handlers.
 In this setup \fBGetData\fR will be called with the channel as an
 argument whenever $chan becomes readable. The \fBread\fR call will
 read whatever binary data is currently available without blocking.
-Here the channel has the fileevent removed when an end of file 
+Here the channel has the fileevent removed when an end of file
 occurs to avoid being continually called (see above). Alternatively
 the channel may be closed on this condition.
 .PP
@@ -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 filename n 7.5 Tcl "Tcl Built-In Commands"
 .so man.macros
 .BS
@@ -29,7 +29,7 @@ File names are grouped into three general types based on the starting point
 for the path used to specify the file: absolute, relative, and
 volume-relative.  Absolute names are completely qualified, giving a path to
 the file relative to a particular volume and the root directory on that
-volume.  Relative names are unqualified, giving a path to the file relative 
+volume.  Relative names are unqualified, giving a path to the file relative
 to the current working directory.  Volume-relative names are partially
 qualified, either giving the path relative to the root directory on the
 current volume, or relative to the current directory of the specified
@@ -75,7 +75,7 @@ current directory.
 .TP 15
 \fB\&../foo\fR
 Relative path to the file \fBfoo\fR in the directory above the current
-directory. 
+directory.
 .RE
 .TP
 \fBWindows\fR
@@ -84,7 +84,7 @@ style names.  Both \fB/\fR and \fB\e\fR may be used as directory separators
 in either type of name.  Drive-relative names consist of an optional drive
 specifier followed by an absolute or relative path.  UNC paths follow the
 general form \fB\e\eservername\esharename\epath\efile\fR, but must at
-the very least contain the server and share components, i.e. 
+the very least contain the server and share components, i.e.
 \fB\e\eservername\esharename\fR.  In both forms,
 the file names \fB.\fR and \fB..\fR are special and refer to the current
 directory and the parent of the current directory respectively.  The
@@ -154,7 +154,7 @@ native path names).  Also Windows 3.1 only supports file
 names with a root of no more than 8 characters and an extension of no
 more than 3 characters.
 .PP
-On Windows platforms there are file and path length restrictions. 
+On Windows platforms there are file and path length restrictions.
 Complete paths or filenames longer than about 260 characters will lead
 to errors in most file operations.
 .PP
--- a/Show More
+++ b/Show More