Remove real POSIX function names from the pcre2-posix library.
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Philip.Hazel
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38dbea6200
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12
ChangeLog
12
ChangeLog
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@ -11,13 +11,13 @@ with binary zeros. This is from Bugzilla #2681. Patch from Jeremie
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Courreges-Anglas via Nam Nguyen. This fixes RunGrepTest for OpenBSD. Later:
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it broke it for at least one version of Solaris, where tr can't handle binary
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zeros. However, that system had /usr/xpg4/bin/tr installed, which works OK, so
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RunGrepTest now checks for that command and use it if found.
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RunGrepTest now checks for that command and uses it if found.
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2. Compiling with gcc 10.2's -fanalyzer option showed up a hypothetical problem
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with a NULL dereference. I don't think this case could ever occur in practice,
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but I have put in a check in order to get rid of the compiler error.
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3. An alternative patch for CMakeLists.txt because 10.36 # 4 breaks CMake on
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3. An alternative patch for CMakeLists.txt because 10.36 #4 breaks CMake on
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Windows. Patch from email@cs-ware.de fixes bugzilla #2688.
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4. Two bugs related to over-large numbers have been fixed so the behaviour is
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@ -44,6 +44,14 @@ recursions such as /(a\K.(?1)*)/ did not have this problem.
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7. Restore single character repetition optimization in JIT. Currently fewer
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character repetitions are optimized than in 10.34.
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8. When the names of the functions in the POSIX wrapper were changed to
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pcre2_regcomp() etc. (see change 10.33 #4 below), functions with the original
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names were left in the library so that pre-compiled programs would still work.
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However, this has proved troublesome when programs link with several libraries,
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some of which use PCRE2 via the POSIX interface while others use a native POSIX
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library. For this reason, the POSIX function names are removed in this release.
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The macros in pcre2posix.h should ensure that re-compiling fixes any programs
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that haven't been compiled since before 10.33.
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Version 10.36 04-December-2020
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@ -68,11 +68,14 @@ application. Because the POSIX functions call the native ones, it is also
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necessary to add <b>-lpcre2-8</b>.
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</P>
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<P>
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Although they are not defined as protypes in <b>pcre2posix.h</b>, the library
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does contain functions with the POSIX names <b>regcomp()</b> etc. These simply
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pass their arguments to the PCRE2 functions. These functions are provided for
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backwards compatibility with earlier versions of PCRE2, so that existing
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programs do not have to be recompiled.
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Although they were not defined as protypes in <b>pcre2posix.h</b>, releases
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10.33 to 10.36 of the library contained functions with the POSIX names
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<b>regcomp()</b> etc. These simply passed their arguments to the PCRE2
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functions. These functions were provided for backwards compatibility with
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earlier versions of PCRE2, which had only POSIX names. However, this has proved
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troublesome in situations where a program links with several libraries, some of
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which use PCRE2's POSIX interface while others use the real POSIX functions.
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For this reason, the POSIX names have been removed since release 10.37.
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</P>
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<P>
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Calling the header file <b>pcre2posix.h</b> avoids any conflict with other POSIX
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@ -344,9 +347,9 @@ Cambridge, England.
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</P>
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<br><a name="SEC10" href="#TOC1">REVISION</a><br>
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<P>
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Last updated: 30 January 2019
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Last updated: 26 April 2021
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<br>
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Copyright © 1997-2019 University of Cambridge.
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Copyright © 1997-2021 University of Cambridge.
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<br>
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<p>
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Return to the <a href="index.html">PCRE2 index page</a>.
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@ -9895,11 +9895,15 @@ DESCRIPTION
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an application. Because the POSIX functions call the native ones, it is
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also necessary to add -lpcre2-8.
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Although they are not defined as protypes in pcre2posix.h, the library
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does contain functions with the POSIX names regcomp() etc. These simply
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pass their arguments to the PCRE2 functions. These functions are pro-
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vided for backwards compatibility with earlier versions of PCRE2, so
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that existing programs do not have to be recompiled.
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Although they were not defined as protypes in pcre2posix.h, releases
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10.33 to 10.36 of the library contained functions with the POSIX names
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regcomp() etc. These simply passed their arguments to the PCRE2 func-
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tions. These functions were provided for backwards compatibility with
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earlier versions of PCRE2, which had only POSIX names. However, this
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has proved troublesome in situations where a program links with several
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libraries, some of which use PCRE2's POSIX interface while others use
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the real POSIX functions. For this reason, the POSIX names have been
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removed since release 10.37.
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Calling the header file pcre2posix.h avoids any conflict with other
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POSIX libraries. It can, of course, be renamed or aliased as regex.h,
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@ -10175,8 +10179,8 @@ AUTHOR
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REVISION
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Last updated: 30 January 2019
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Copyright (c) 1997-2019 University of Cambridge.
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Last updated: 26 April 2021
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Copyright (c) 1997-2021 University of Cambridge.
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------------------------------------------------------------------------------
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@ -1,4 +1,4 @@
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.TH PCRE2POSIX 3 "30 January 2019" "PCRE2 10.33"
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.TH PCRE2POSIX 3 "26 April 2021" "PCRE2 10.37"
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.SH NAME
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PCRE2 - Perl-compatible regular expressions (revised API)
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.SH "SYNOPSIS"
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@ -44,11 +44,14 @@ can be accessed by adding \fB-lpcre2-posix\fP to the command for linking an
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application. Because the POSIX functions call the native ones, it is also
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necessary to add \fB-lpcre2-8\fP.
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.P
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Although they are not defined as protypes in \fBpcre2posix.h\fP, the library
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does contain functions with the POSIX names \fBregcomp()\fP etc. These simply
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pass their arguments to the PCRE2 functions. These functions are provided for
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backwards compatibility with earlier versions of PCRE2, so that existing
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programs do not have to be recompiled.
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Although they were not defined as protypes in \fBpcre2posix.h\fP, releases
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10.33 to 10.36 of the library contained functions with the POSIX names
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\fBregcomp()\fP etc. These simply passed their arguments to the PCRE2
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functions. These functions were provided for backwards compatibility with
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earlier versions of PCRE2, which had only POSIX names. However, this has proved
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troublesome in situations where a program links with several libraries, some of
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which use PCRE2's POSIX interface while others use the real POSIX functions.
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For this reason, the POSIX names have been removed since release 10.37.
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.P
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Calling the header file \fBpcre2posix.h\fP avoids any conflict with other POSIX
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libraries. It can, of course, be renamed or aliased as \fBregex.h\fP, which is
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@ -321,6 +324,6 @@ Cambridge, England.
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.rs
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.sp
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.nf
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Last updated: 30 January 2019
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Copyright (c) 1997-2019 University of Cambridge.
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Last updated: 26 April 2021
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Copyright (c) 1997-2021 University of Cambridge.
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.fi
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@ -7,7 +7,7 @@ and semantics are as close as possible to those of the Perl 5 language.
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Written by Philip Hazel
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Original API code Copyright (c) 1997-2012 University of Cambridge
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New API code Copyright (c) 2016-2019 University of Cambridge
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New API code Copyright (c) 2016-2021 University of Cambridge
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-----------------------------------------------------------------------------
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Redistribution and use in source and binary forms, with or without
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@ -175,6 +175,20 @@ static const char *const pstring[] = {
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#if 0 /* REMOVE THIS CODE */
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The code below was created for 10.33 (see ChangeLog 10.33 #4) when the
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POSIX functions were given pcre2_... names instead of the traditional POSIX
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names. However, it has proved to be more troublesome than useful. There have
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been at least two cases where a program links with two others, one of which
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uses the POSIX library and the other uses the PCRE2 POSIX functions, thus
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causing two instances of the POSIX runctions to exist, leading to trouble. For
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10.37 this code is commented out. In due course it can be removed if there are
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no issues. The only small worry is the comment below about languages that do
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not include pcre2posix.h. If there are any such cases, they will have to use
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the PCRE2 names.
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/*************************************************
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* Wrappers with traditional POSIX names *
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*************************************************/
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@ -218,7 +232,7 @@ regexec(const regex_t *preg, const char *string, size_t nmatch,
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{
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return pcre2_regexec(preg, string, nmatch, pmatch, eflags);
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}
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#endif
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/*************************************************
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