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authorIlya Zakharevich <ilya@math.berkeley.edu>1999-10-04 15:58:03 -0400
committerJarkko Hietaniemi <jhi@iki.fi>1999-10-05 23:03:46 +0000
commit30382c73ff93b57b951492a5a0d1cba2de577e49 (patch)
treeb8078411cc92420896150789efbb4b5d0909b865 /regexec.c
parentd790c045735c0bdbf37ccd2827e8fc572aaeae88 (diff)
downloadperl-30382c73ff93b57b951492a5a0d1cba2de577e49.tar.gz
Re: Strange RE engine breakage in 5_61
To: François Désarménien <desar@club-internet.fr> Cc: "perl5-porters@perl.org" <perl5-porters@perl.org> Message-ID: <19991004195803.A21760@monk.mps.ohio-state.edu> (had to apply pat.t part manually because there already were more tests than there was in _61) p4raw-id: //depot/cfgperl@4301
Diffstat (limited to 'regexec.c')
-rw-r--r--regexec.c22
1 files changed, 13 insertions, 9 deletions
diff --git a/regexec.c b/regexec.c
index a567353311..048ae491a1 100644
--- a/regexec.c
+++ b/regexec.c
@@ -739,19 +739,23 @@ Perl_regexec_flags(pTHX_ register regexp *prog, char *stringarg, register char *
/* If there is a "must appear" string, look for it. */
s = startpos;
- if (prog->reganch & ROPT_GPOS_SEEN) {
+ if (prog->reganch & ROPT_GPOS_SEEN) { /* Need to have PL_reg_ganch */
MAGIC *mg;
- if (!(flags & REXEC_IGNOREPOS) && sv && SvTYPE(sv) >= SVt_PVMG
- && SvMAGIC(sv) && (mg = mg_find(sv, 'g')) && mg->mg_len >= 0)
- PL_reg_ganch = strbeg + mg->mg_len;
- else
+ if (flags & REXEC_IGNOREPOS) /* Means: check only at start */
PL_reg_ganch = startpos;
- if (prog->reganch & ROPT_ANCH_GPOS) {
- if (s > PL_reg_ganch)
- goto phooey;
- s = PL_reg_ganch;
+ else if (sv && SvTYPE(sv) >= SVt_PVMG
+ && SvMAGIC(sv)
+ && (mg = mg_find(sv, 'g')) && mg->mg_len >= 0) {
+ PL_reg_ganch = strbeg + mg->mg_len; /* Defined pos() */
+ if (prog->reganch & ROPT_ANCH_GPOS) {
+ if (s > PL_reg_ganch)
+ goto phooey;
+ s = PL_reg_ganch;
+ }
}
+ else /* pos() not defined */
+ PL_reg_ganch = strbeg;
}
if (!(flags & REXEC_CHECKED) && prog->check_substr != Nullsv) {