From 3950ffe2a485479f6561c27364d3d7df5a21d124 Mon Sep 17 00:00:00 2001 From: Igor Pashev Date: Sun, 24 Jun 2012 22:28:35 +0000 Subject: Imported Upstream version 93u+ --- src/lib/libast/regex/regexec.c | 54 ++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 54 insertions(+) create mode 100644 src/lib/libast/regex/regexec.c (limited to 'src/lib/libast/regex/regexec.c') diff --git a/src/lib/libast/regex/regexec.c b/src/lib/libast/regex/regexec.c new file mode 100644 index 0000000..fb8f428 --- /dev/null +++ b/src/lib/libast/regex/regexec.c @@ -0,0 +1,54 @@ +/*********************************************************************** +* * +* This software is part of the ast package * +* Copyright (c) 1985-2011 AT&T Intellectual Property * +* and is licensed under the * +* Eclipse Public License, Version 1.0 * +* by AT&T Intellectual Property * +* * +* A copy of the License is available at * +* http://www.eclipse.org/org/documents/epl-v10.html * +* (with md5 checksum b35adb5213ca9657e911e9befb180842) * +* * +* Information and Software Systems Research * +* AT&T Research * +* Florham Park NJ * +* * +* Glenn Fowler * +* David Korn * +* Phong Vo * +* * +***********************************************************************/ +#pragma prototyped + +/* + * posix regex executor + * single unsized-string interface + */ + +#include "reglib.h" + +/* + * standard wrapper for the sized-record interface + */ + +int +regexec(const regex_t* p, const char* s, size_t nmatch, regmatch_t* match, regflags_t flags) +{ + if (flags & REG_STARTEND) + { + int r; + int m = match->rm_so; + regmatch_t* e; + + if (!(r = regnexec(p, s + m, match->rm_eo - m, nmatch, match, flags)) && m > 0) + for (e = match + nmatch; match < e; match++) + if (match->rm_so >= 0) + { + match->rm_so += m; + match->rm_eo += m; + } + return r; + } + return regnexec(p, s, s ? strlen(s) : 0, nmatch, match, flags); +} -- cgit v1.2.3