dVAR; dSP; dTARG;
PMOP *pm = cPMOP;
PMOP *dynpm = pm;
- const char *t;
const char *s;
const char *strend;
+ I32 curpos = 0; /* initial pos() or current $+[0] */
I32 global;
- U8 r_flags = REXEC_CHECKED;
+ U8 r_flags = 0;
const char *truebase; /* Start of string */
REGEXP *rx = PM_GETRE(pm);
bool rxtainted;
const I32 oldsave = PL_savestack_ix;
I32 update_minmatch = 1;
I32 had_zerolen = 0;
- U32 gpos = 0;
if (PL_op->op_flags & OPf_STACKED)
TARG = POPs;
PUTBACK; /* EVAL blocks need stack_sp. */
/* Skip get-magic if this is a qr// clone, because regcomp has
already done it. */
- s = ReANY(rx)->mother_re
+ truebase = ReANY(rx)->mother_re
? SvPV_nomg_const(TARG, len)
: SvPV_const(TARG, len);
- if (!s)
+ if (!truebase)
DIE(aTHX_ "panic: pp_match");
- strend = s + len;
+ strend = truebase + len;
rxtainted = (RX_ISTAINTED(rx) ||
(TAINT_get && (pm->op_pmflags & PMf_RETAINT)));
TAINT_NOT;
goto nope;
}
- truebase = t = s;
-
/* XXXX What part of this is needed with true \G-support? */
if (global) {
MAGIC * const mg = mg_find_mglob(TARG);
- RX_OFFS(rx)[0].start = -1;
if (mg && mg->mg_len >= 0) {
if (!(RX_EXTFLAGS(rx) & RXf_GPOS_SEEN))
- RX_OFFS(rx)[0].end = RX_OFFS(rx)[0].start = mg->mg_len;
+ curpos = mg->mg_len;
else if (RX_EXTFLAGS(rx) & RXf_ANCH_GPOS) {
- r_flags |= REXEC_IGNOREPOS;
- RX_OFFS(rx)[0].end = RX_OFFS(rx)[0].start = mg->mg_len;
- } else if (RX_EXTFLAGS(rx) & RXf_GPOS_FLOAT)
- gpos = mg->mg_len;
- else
- RX_OFFS(rx)[0].end = RX_OFFS(rx)[0].start = mg->mg_len;
+ curpos = mg->mg_len;
+ }
+ else if (!(RX_EXTFLAGS(rx) & RXf_GPOS_FLOAT))
+ curpos = mg->mg_len;
minmatch = (mg->mg_flags & MGf_MINMATCH) ? RX_GOFS(rx) + 1 : 0;
update_minmatch = 0;
}
r_flags |= REXEC_COPY_SKIP_POST;
};
+ s = truebase;
+
play_it_again:
- if (global && RX_OFFS(rx)[0].start != -1) {
- t = s = RX_OFFS(rx)[0].end + truebase - RX_GOFS(rx);
+ if (global) {
+ s = truebase + curpos - RX_GOFS(rx);
if ((s + RX_MINLEN(rx)) > strend || s < truebase) {
DEBUG_r(PerlIO_printf(Perl_debug_log, "Regex match can't succeed, so not even tried\n"));
goto nope;
if (update_minmatch++)
minmatch = had_zerolen;
}
- if (RX_EXTFLAGS(rx) & RXf_USE_INTUIT &&
- DO_UTF8(TARG) == (RX_UTF8(rx) != 0)) {
- s = CALLREG_INTUIT_START(rx, TARG, truebase,
- (char *)s, (char *)strend, r_flags, NULL);
- if (!s)
- goto nope;
- if ( (RX_EXTFLAGS(rx) & RXf_CHECK_ALL)
- && !SvROK(TARG)) /* Cannot trust since INTUIT cannot guess ^ */
- goto yup;
- }
if (!CALLREGEXEC(rx, (char*)s, (char *)strend, (char*)truebase,
- minmatch, TARG, NUM2PTR(void*, gpos), r_flags))
- goto ret_no;
+ minmatch, TARG, NULL, r_flags))
+ goto nope;
PL_curpm = pm;
if (dynpm->op_pmflags & PMf_ONCE) {
#endif
}
- gotcha:
if (rxtainted)
RX_MATCH_TAINTED_on(rx);
TAINT_IF(RX_MATCH_TAINTED(rx));
}
}
- if (gimme == G_ARRAY) {
+ if ((!RX_NPARENS(rx) && !global) || gimme != G_ARRAY) {
+ LEAVE_SCOPE(oldsave);
+ RETPUSHYES;
+ }
+
+ /* push captures on stack */
+
+ {
const I32 nparens = RX_NPARENS(rx);
I32 i = (global && !nparens) ? 1 : 0;
PUSHs(sv_newmortal());
if ((RX_OFFS(rx)[i].start != -1) && RX_OFFS(rx)[i].end != -1 ) {
const I32 len = RX_OFFS(rx)[i].end - RX_OFFS(rx)[i].start;
- s = RX_OFFS(rx)[i].start + truebase;
+ const char * const s = RX_OFFS(rx)[i].start + truebase;
if (RX_OFFS(rx)[i].end < 0 || RX_OFFS(rx)[i].start < 0 ||
len < 0 || len > strend - s)
DIE(aTHX_ "panic: pp_match start/end pointers, i=%ld, "
}
}
if (global) {
+ assert(RX_OFFS(rx)[0].start != -1);
+ curpos = (UV)RX_OFFS(rx)[0].end;
had_zerolen = (RX_OFFS(rx)[0].start != -1
&& (RX_OFFS(rx)[0].start + RX_GOFS(rx)
- == (UV)RX_OFFS(rx)[0].end));
+ == (UV)curpos));
PUTBACK; /* EVAL blocks may use stack */
r_flags |= REXEC_IGNOREPOS | REXEC_NOT_FIRST;
goto play_it_again;
}
- else if (!nparens)
- XPUSHs(&PL_sv_yes);
LEAVE_SCOPE(oldsave);
RETURN;
}
- else {
- LEAVE_SCOPE(oldsave);
- RETPUSHYES;
- }
-
-yup: /* Confirmed by INTUIT */
- assert(!RX_NPARENS(rx));
- if (rxtainted)
- RX_MATCH_TAINTED_on(rx);
- TAINT_IF(RX_MATCH_TAINTED(rx));
- PL_curpm = pm;
- if (dynpm->op_pmflags & PMf_ONCE) {
-#ifdef USE_ITHREADS
- SvREADONLY_on(PL_regex_pad[dynpm->op_pmoffset]);
-#else
- dynpm->op_pmflags |= PMf_USED;
-#endif
- }
-
- RX_MATCH_UTF8_set(rx, cBOOL(DO_UTF8(rx)));
- if ( !(r_flags & REXEC_NOT_FIRST) )
- Perl_reg_set_capture_string(aTHX_ rx,
- (char*)truebase, (char *)strend,
- TARG, r_flags, cBOOL(DO_UTF8(TARG)));
-
- /* skipping regexec means that indices for $&, $-[0] etc weren't set */
- RX_OFFS(rx)[0].start = s - truebase;
- RX_OFFS(rx)[0].end =
- RX_MATCH_UTF8(rx)
- ? (char*)utf8_hop((U8*)s, RX_MINLENRET(rx)) - truebase
- : s - truebase + RX_MINLENRET(rx);
-
- if (global) {
- goto gotcha;
- }
-
- /* match via INTUIT shouldn't have any captures. Let @-, @+, $^N know */
- RX_LASTPAREN(rx) = RX_LASTCLOSEPAREN(rx) = 0;
- LEAVE_SCOPE(oldsave);
- RETPUSHYES;
+ /* NOTREACHED */
nope:
-ret_no:
if (global && !(dynpm->op_pmflags & PMf_CONTINUE)) {
MAGIC* const mg = mg_find_mglob(TARG);
if (mg)
#endif
orig = m = s;
- if (RX_EXTFLAGS(rx) & RXf_USE_INTUIT) {
- s = CALLREG_INTUIT_START(rx, TARG, orig, s, strend, r_flags, NULL);
-
- if (!s)
- goto ret_no;
- /* How to do it in subst? */
-/* if ( (RX_EXTFLAGS(rx) & RXf_CHECK_ALL)
- && !PL_sawampersand
- && !(RX_EXTFLAGS(rx) & RXf_KEEPCOPY))
- goto yup;
-*/
- }
- if (!CALLREGEXEC(rx, s, strend, orig, 0, TARG, NULL,
- r_flags | REXEC_CHECKED))
+ if (!CALLREGEXEC(rx, s, strend, orig, 0, TARG, NULL, r_flags))
{
- ret_no:
SPAGAIN;
PUSHs(rpm->op_pmflags & PMf_NONDESTRUCT ? TARG : &PL_sv_no);
LEAVE_SCOPE(oldsave);
RETURN;
}
+ s = RX_OFFS(rx)[0].start + orig;
PL_curpm = pm;
https://perl5.git.perl.org / perl5.git / blobdiff