diff options
Diffstat (limited to 'usr/src/lib/libast/common/regex/regexec.c')
| -rw-r--r-- | usr/src/lib/libast/common/regex/regexec.c | 54 |
1 files changed, 54 insertions, 0 deletions
diff --git a/usr/src/lib/libast/common/regex/regexec.c b/usr/src/lib/libast/common/regex/regexec.c new file mode 100644 index 0000000000..60acf41934 --- /dev/null +++ b/usr/src/lib/libast/common/regex/regexec.c @@ -0,0 +1,54 @@ +/*********************************************************************** +* * +* This software is part of the ast package * +* Copyright (c) 1985-2007 AT&T Knowledge Ventures * +* and is licensed under the * +* Common Public License, Version 1.0 * +* by AT&T Knowledge Ventures * +* * +* A copy of the License is available at * +* http://www.opensource.org/licenses/cpl1.0.txt * +* (with md5 checksum 059e8cd6165cb4c31e351f2b69388fd9) * +* * +* Information and Software Systems Research * +* AT&T Research * +* Florham Park NJ * +* * +* Glenn Fowler <gsf@research.att.com> * +* David Korn <dgk@research.att.com> * +* Phong Vo <kpv@research.att.com> * +* * +***********************************************************************/ +#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); +} |