1da2e3ebdSchin /***********************************************************************
2da2e3ebdSchin * *
3da2e3ebdSchin * This software is part of the ast package *
4*3e14f97fSRoger A. Faulkner * Copyright (c) 1985-2010 AT&T Intellectual Property *
5da2e3ebdSchin * and is licensed under the *
6da2e3ebdSchin * Common Public License, Version 1.0 *
77c2fbfb3SApril Chin * by AT&T Intellectual Property *
8da2e3ebdSchin * *
9da2e3ebdSchin * A copy of the License is available at *
10da2e3ebdSchin * http://www.opensource.org/licenses/cpl1.0.txt *
11da2e3ebdSchin * (with md5 checksum 059e8cd6165cb4c31e351f2b69388fd9) *
12da2e3ebdSchin * *
13da2e3ebdSchin * Information and Software Systems Research *
14da2e3ebdSchin * AT&T Research *
15da2e3ebdSchin * Florham Park NJ *
16da2e3ebdSchin * *
17da2e3ebdSchin * Glenn Fowler <gsf@research.att.com> *
18da2e3ebdSchin * David Korn <dgk@research.att.com> *
19da2e3ebdSchin * Phong Vo <kpv@research.att.com> *
20da2e3ebdSchin * *
21da2e3ebdSchin ***********************************************************************/
22da2e3ebdSchin #pragma prototyped
23da2e3ebdSchin
24da2e3ebdSchin /*
25da2e3ebdSchin * posix regex executor
26da2e3ebdSchin * single unsized-string interface
27da2e3ebdSchin */
28da2e3ebdSchin
29da2e3ebdSchin #include "reglib.h"
30da2e3ebdSchin
31da2e3ebdSchin /*
32da2e3ebdSchin * standard wrapper for the sized-record interface
33da2e3ebdSchin */
34da2e3ebdSchin
35da2e3ebdSchin int
regexec(const regex_t * p,const char * s,size_t nmatch,regmatch_t * match,regflags_t flags)36da2e3ebdSchin regexec(const regex_t* p, const char* s, size_t nmatch, regmatch_t* match, regflags_t flags)
37da2e3ebdSchin {
38da2e3ebdSchin if (flags & REG_STARTEND)
39da2e3ebdSchin {
40da2e3ebdSchin int r;
41da2e3ebdSchin int m = match->rm_so;
42da2e3ebdSchin regmatch_t* e;
43da2e3ebdSchin
44da2e3ebdSchin if (!(r = regnexec(p, s + m, match->rm_eo - m, nmatch, match, flags)) && m > 0)
45da2e3ebdSchin for (e = match + nmatch; match < e; match++)
46da2e3ebdSchin if (match->rm_so >= 0)
47da2e3ebdSchin {
48da2e3ebdSchin match->rm_so += m;
49da2e3ebdSchin match->rm_eo += m;
50da2e3ebdSchin }
51da2e3ebdSchin return r;
52da2e3ebdSchin }
53da2e3ebdSchin return regnexec(p, s, s ? strlen(s) : 0, nmatch, match, flags);
54da2e3ebdSchin }
55