/* pp_hot.c
*
- * Copyright (c) 1991-1997, Larry Wall
+ * Copyright (c) 1991-1999, Larry Wall
*
* You may distribute under the terms of either the GNU General Public
* License or the Artistic License, as specified in the README file.
{
tryAMAGICunTARGET(iter, 0);
PL_last_in_gv = (GV*)(*PL_stack_sp--);
- if (PL_op->op_flags & OPf_SPECIAL) { /* Are called as <$var> */
- if (SvROK(PL_last_in_gv)) {
- if (SvTYPE(SvRV(PL_last_in_gv)) != SVt_PVGV)
- goto hard_way;
+ if (SvTYPE(PL_last_in_gv) != SVt_PVGV) {
+ if (SvROK(PL_last_in_gv) && SvTYPE(SvRV(PL_last_in_gv)) == SVt_PVGV)
PL_last_in_gv = (GV*)SvRV(PL_last_in_gv);
- } else if (SvTYPE(PL_last_in_gv) != SVt_PVGV) {
- hard_way: {
+ else {
dSP;
XPUSHs((SV*)PL_last_in_gv);
PUTBACK;
pp_rv2gv(ARGS);
PL_last_in_gv = (GV*)(*PL_stack_sp--);
- }
}
}
return do_readline();
djSP;
if (SvREADONLY(TOPs) || SvTYPE(TOPs) > SVt_PVLV)
croak(PL_no_modify);
- if (SvIOK(TOPs) && !SvNOK(TOPs) && !SvPOK(TOPs) &&
+ if (SvIOK_notUV(TOPs) && !SvNOK(TOPs) && !SvPOK(TOPs) &&
SvIVX(TOPs) != IV_MAX)
{
++SvIVX(TOPs);
}
break;
default:
- if (SvTHINKFIRST(sv)) {
- if (SvREADONLY(sv) && PL_curcop != &PL_compiling) {
- if (!SvIMMORTAL(sv))
- DIE(PL_no_modify);
- if (relem <= lastrelem)
- relem++;
- break;
- }
- if (SvROK(sv))
- sv_unref(sv);
+ if (SvIMMORTAL(sv)) {
+ if (relem <= lastrelem)
+ relem++;
+ break;
}
if (relem <= lastrelem) {
sv_setsv(sv, *relem);
register char *s;
char *strend;
I32 global;
- I32 r_flags;
- char *truebase;
+ I32 r_flags = 0;
+ char *truebase; /* Start of string, may be
+ relocated if REx engine
+ copies the string. */
register REGEXP *rx = pm->op_pmregexp;
bool rxtainted;
I32 gimme = GIMME;
/* XXXX What part of this is needed with true \G-support? */
if (global = pm->op_pmflags & PMf_GLOBAL) {
- rx->startp[0] = 0;
+ rx->startp[0] = -1;
if (SvTYPE(TARG) >= SVt_PVMG && SvMAGIC(TARG)) {
MAGIC* mg = mg_find(TARG, 'g');
if (mg && mg->mg_len >= 0) {
if (!(rx->reganch & ROPT_GPOS_SEEN))
- rx->endp[0] = rx->startp[0] = s + mg->mg_len;
+ rx->endp[0] = rx->startp[0] = mg->mg_len;
+ else if (rx->reganch & ROPT_ANCH_GPOS) {
+ r_flags |= REXEC_IGNOREPOS;
+ rx->endp[0] = rx->startp[0] = mg->mg_len;
+ }
minmatch = (mg->mg_flags & MGf_MINMATCH);
update_minmatch = 0;
}
}
}
- r_flags = ((gimme != G_ARRAY && !global && rx->nparens)
- || SvTEMP(TARG) || PL_sawampersand)
- ? REXEC_COPY_STR : 0;
+ if ((gimme != G_ARRAY && !global && rx->nparens)
+ || SvTEMP(TARG) || PL_sawampersand)
+ r_flags |= REXEC_COPY_STR;
if (SvSCREAM(TARG) && rx->check_substr
&& SvTYPE(rx->check_substr) == SVt_PVBM
&& SvVALID(rx->check_substr))
}
play_it_again:
- if (global && rx->startp[0]) {
- t = s = rx->endp[0];
+ if (global && rx->startp[0] != -1) {
+ t = s = rx->endp[0] + truebase;
if ((s + rx->minlen) > strend)
goto nope;
if (update_minmatch++)
}
if (rx->check_substr) {
if (!(rx->reganch & ROPT_NOSCAN)) { /* Floating checkstring. */
+ SV *c = rx->check_substr;
+
if (r_flags & REXEC_SCREAM) {
I32 p = -1;
char *b;
-
- if (PL_screamfirst[BmRARE(rx->check_substr)] < 0)
+
+ if (PL_screamfirst[BmRARE(c)] < 0
+ && !( BmRARE(c) == '\n' && (BmPREVIOUS(c) == SvCUR(c) - 1)
+ && SvTAIL(c) ))
goto nope;
b = (char*)HOP((U8*)s, rx->check_offset_min);
- if (!(s = screaminstr(TARG, rx->check_substr, b - s, 0, &p, 0)))
+ if (!(s = screaminstr(TARG, c, b - s, 0, &p, 0)))
goto nope;
if ((rx->reganch & ROPT_CHECK_ALL)
- && !PL_sawampersand && !SvTAIL(rx->check_substr))
+ && !PL_sawampersand && !SvTAIL(c))
goto yup;
}
else if (!(s = fbm_instr((unsigned char*)HOP((U8*)s, rx->check_offset_min),
- (unsigned char*)strend,
- rx->check_substr, 0)))
+ (unsigned char*)strend, c,
+ PL_multiline ? FBMrf_MULTILINE : 0)))
goto nope;
else if ((rx->reganch & ROPT_CHECK_ALL) && !PL_sawampersand)
goto yup;
if (s && rx->check_offset_max < s - t) {
- ++BmUSEFUL(rx->check_substr);
+ ++BmUSEFUL(c);
s = (char*)HOP((U8*)s, -rx->check_offset_max);
}
else
else if (!PL_multiline) { /* Anchored near beginning of string. */
I32 slen;
char *b = (char*)HOP((U8*)s, rx->check_offset_min);
- if (*SvPVX(rx->check_substr) != *b
- || ((slen = SvCUR(rx->check_substr)) > 1
- && memNE(SvPVX(rx->check_substr), b, slen)))
- goto nope;
+
+ if (SvTAIL(rx->check_substr)) {
+ slen = SvCUR(rx->check_substr); /* >= 1 */
+
+ if ( strend - b > slen || strend - b < slen - 1 )
+ goto nope;
+ if ( strend - b == slen && strend[-1] != '\n')
+ goto nope;
+ /* Now should match b[0..slen-2] */
+ slen--;
+ if (slen && (*SvPVX(rx->check_substr) != *b
+ || (slen > 1
+ && memNE(SvPVX(rx->check_substr), b, slen))))
+ goto nope;
+ if ((rx->reganch & ROPT_CHECK_ALL) && !PL_sawampersand)
+ goto yup;
+ } else { /* Assume len > 0 */
+ if (*SvPVX(rx->check_substr) != *b
+ || ((slen = SvCUR(rx->check_substr)) > 1
+ && memNE(SvPVX(rx->check_substr), b, slen)))
+ goto nope;
+ if ((rx->reganch & ROPT_CHECK_ALL) && !PL_sawampersand)
+ goto yup;
+ }
}
if (!(rx->reganch & ROPT_NAUGHTY) && --BmUSEFUL(rx->check_substr) < 0
&& rx->check_substr == rx->float_substr) {
for (i = !i; i <= iters; i++) {
PUSHs(sv_newmortal());
/*SUPPRESS 560*/
- if ((s = rx->startp[i]) && rx->endp[i] ) {
- len = rx->endp[i] - s;
+ if ((rx->startp[i] != -1) && rx->endp[i] != -1 ) {
+ len = rx->endp[i] - rx->startp[i];
+ s = rx->startp[i] + truebase;
sv_setpvn(*SP, s, len);
}
}
if (global) {
- truebase = rx->subbeg;
- strend = rx->subend;
- had_zerolen = (rx->startp[0] && rx->startp[0] == rx->endp[0]);
+ had_zerolen = (rx->startp[0] != -1
+ && rx->startp[0] == rx->endp[0]);
PUTBACK; /* EVAL blocks may use stack */
- r_flags |= REXEC_IGNOREPOS;
+ r_flags |= REXEC_IGNOREPOS | REXEC_NOT_FIRST;
goto play_it_again;
}
else if (!iters)
sv_magic(TARG, (SV*)0, 'g', Nullch, 0);
mg = mg_find(TARG, 'g');
}
- if (rx->startp[0]) {
- mg->mg_len = rx->endp[0] - rx->subbeg;
+ if (rx->startp[0] != -1) {
+ mg->mg_len = rx->endp[0];
if (rx->startp[0] == rx->endp[0])
mg->mg_flags |= MGf_MINMATCH;
else
PL_curpm = pm;
if (pm->op_pmflags & PMf_ONCE)
pm->op_pmdynflags |= PMdf_USED;
- Safefree(rx->subbase);
- rx->subbase = Nullch;
+ if (RX_MATCH_COPIED(rx))
+ Safefree(rx->subbeg);
+ RX_MATCH_COPIED_off(rx);
+ rx->subbeg = Nullch;
if (global) {
rx->subbeg = truebase;
- rx->subend = strend;
- rx->startp[0] = s;
- rx->endp[0] = s + SvCUR(rx->check_substr);
+ rx->startp[0] = s - truebase;
+ rx->endp[0] = s - truebase + SvCUR(rx->check_substr);
+ rx->sublen = strend - truebase;
goto gotcha;
- }
+ }
if (PL_sawampersand) {
- char *tmps;
+ I32 off;
- tmps = rx->subbase = savepvn(t, strend-t);
- rx->subbeg = tmps;
- rx->subend = tmps + (strend-t);
- tmps = rx->startp[0] = tmps + (s - t);
- rx->endp[0] = tmps + SvCUR(rx->check_substr);
+ rx->subbeg = savepvn(t, strend - t);
+ rx->sublen = strend - t;
+ RX_MATCH_COPIED_on(rx);
+ off = rx->startp[0] = s - t;
+ rx->endp[0] = off + SvCUR(rx->check_substr);
+ }
+ else { /* startp/endp are used by @- @+. */
+ rx->startp[0] = s - truebase;
+ rx->endp[0] = s - truebase + SvCUR(rx->check_substr);
}
LEAVE_SCOPE(oldsave);
RETPUSHYES;
sv_setpv(tmpcmd, "/dev/dosglob/"); /* File System Extension */
sv_catsv(tmpcmd, tmpglob);
#else
+#ifdef CYGWIN32
+ sv_setpv(tmpcmd, "for a in ");
+ sv_catsv(tmpcmd, tmpglob);
+ sv_catpv(tmpcmd, "; do echo -e \"$a\\0\\c\"; done |");
+#else
sv_setpv(tmpcmd, "perlglob ");
sv_catsv(tmpcmd, tmpglob);
sv_catpv(tmpcmd, " |");
+#endif /* !CYGWIN */
#endif /* !DJGPP */
#endif /* !OS2 */
#else /* !DOSISH */
SP--;
}
if (!fp) {
- if (ckWARN(WARN_CLOSED) && io && !(IoFLAGS(io) & IOf_START))
- warner(WARN_CLOSED,
- "Read on closed filehandle <%s>", GvENAME(PL_last_in_gv));
+ if (ckWARN(WARN_CLOSED) && io && !(IoFLAGS(io) & IOf_START)) {
+ if (type == OP_GLOB)
+ warner(WARN_CLOSED, "glob failed (can't start child: %s)",
+ Strerror(errno));
+ else
+ warner(WARN_CLOSED, "Read on closed filehandle <%s>",
+ GvENAME(PL_last_in_gv));
+ }
if (gimme == G_SCALAR) {
(void)SvOK_off(TARG);
PUSHTARG;
sv = sv_2mortal(NEWSV(57, 80));
offset = 0;
}
+
+/* flip-flop EOF state for a snarfed empty file */
+#define SNARF_EOF(gimme,rs,io,sv) \
+ ((gimme != G_SCALAR || SvCUR(sv) \
+ || (IoFLAGS(io) & IOf_NOLINE) || IoLINES(io) || !RsSNARF(rs)) \
+ ? ((IoFLAGS(io) &= ~IOf_NOLINE), TRUE) \
+ : ((IoFLAGS(io) |= IOf_NOLINE), FALSE))
+
for (;;) {
- if (!sv_gets(sv, fp, offset)) {
+ if (!sv_gets(sv, fp, offset)
+ && (type == OP_GLOB || SNARF_EOF(gimme, PL_rs, io, sv)))
+ {
PerlIO_clearerr(fp);
if (IoFLAGS(io) & IOf_ARGV) {
fp = nextargv(PL_last_in_gv);
if (!isALPHA(*tmps) && !isDIGIT(*tmps) &&
strchr("$&*(){}[]'\";\\|?<>~`", *tmps))
break;
- if (*tmps && PerlLIO_stat(SvPVX(sv), &PL_statbuf) < 0) {
+ if (*tmps && PerlLIO_lstat(SvPVX(sv), &PL_statbuf) < 0) {
(void)POPs; /* Unmatched wildcard? Chuck it... */
continue;
}
}
else if (!(s = fbm_instr((unsigned char*)HOP((U8*)s, rx->check_offset_min),
(unsigned char*)strend,
- rx->check_substr, 0)))
+ rx->check_substr,
+ PL_multiline ? FBMrf_MULTILINE : 0)))
goto nope;
if (s && rx->check_offset_max < s - m) {
++BmUSEFUL(rx->check_substr);
SvSCREAM_off(TARG); /* disable possible screamer */
if (once) {
rxtainted |= RX_MATCH_TAINTED(rx);
- if (rx->subbase) {
- m = orig + (rx->startp[0] - rx->subbase);
- d = orig + (rx->endp[0] - rx->subbase);
- } else {
- m = rx->startp[0];
- d = rx->endp[0];
- }
+ m = orig + rx->startp[0];
+ d = orig + rx->endp[0];
s = orig;
if (m - s > strend - d) { /* faster to shorten from end */
if (clen) {
if (iters++ > maxiters)
DIE("Substitution loop");
rxtainted |= RX_MATCH_TAINTED(rx);
- m = rx->startp[0];
+ m = rx->startp[0] + orig;
/*SUPPRESS 560*/
if (i = m - s) {
if (s != d)
Copy(c, d, clen, char);
d += clen;
}
- s = rx->endp[0];
+ s = rx->endp[0] + orig;
} while (CALLREGEXEC(rx, s, strend, orig, s == m,
- Nullsv, NULL, 0)); /* don't match same null twice */
+ Nullsv, NULL, REXEC_NOT_FIRST)); /* don't match same null twice */
if (s != d) {
i = strend - s;
SvCUR_set(TARG, d - SvPVX(TARG) + i);
PUSHSUBST(cx);
RETURNOP(cPMOP->op_pmreplroot);
}
- r_flags |= REXEC_IGNOREPOS;
+ r_flags |= REXEC_IGNOREPOS | REXEC_NOT_FIRST;
do {
if (iters++ > maxiters)
DIE("Substitution loop");
rxtainted |= RX_MATCH_TAINTED(rx);
- if (rx->subbase && rx->subbase != orig) {
+ if (RX_MATCH_COPIED(rx) && rx->subbeg != orig) {
m = s;
s = orig;
- orig = rx->subbase;
+ orig = rx->subbeg;
s = orig + (m - s);
strend = s + (strend - m);
}
- m = rx->startp[0];
+ m = rx->startp[0] + orig;
sv_catpvn(dstr, s, m-s);
- s = rx->endp[0];
+ s = rx->endp[0] + orig;
if (clen)
sv_catpvn(dstr, c, clen);
if (once)
break;
case SVt_PVGV:
if (!(cv = GvCVu((GV*)sv)))
- cv = sv_2cv(sv, &stash, &gv, TRUE);
+ cv = sv_2cv(sv, &stash, &gv, FALSE);
+ if (!cv) {
+ ENTER;
+ SAVETMPS;
+ goto try_autoload;
+ }
break;
}
SAVETMPS;
retry:
- if (!cv)
- DIE("Not a CODE reference");
-
if (!CvROOT(cv) && !CvXSUB(cv)) {
GV* autogv;
SV* sub_name;
/* anonymous or undef'd function leaves us no recourse */
if (CvANON(cv) || !(gv = CvGV(cv)))
DIE("Undefined subroutine called");
+
/* autoloaded stub? */
if (cv != GvCV(gv)) {
cv = GvCV(gv);
- goto retry;
}
/* should call AUTOLOAD now? */
- if ((autogv = gv_autoload4(GvSTASH(gv), GvNAME(gv), GvNAMELEN(gv),
+ else {
+try_autoload:
+ if ((autogv = gv_autoload4(GvSTASH(gv), GvNAME(gv), GvNAMELEN(gv),
FALSE)))
- {
- cv = GvCV(autogv);
- goto retry;
+ {
+ cv = GvCV(autogv);
+ }
+ /* sorry */
+ else {
+ sub_name = sv_newmortal();
+ gv_efullname3(sub_name, gv, Nullch);
+ DIE("Undefined subroutine &%s called", SvPVX(sub_name));
+ }
}
- /* sorry */
- sub_name = sv_newmortal();
- gv_efullname3(sub_name, gv, Nullch);
- DIE("Undefined subroutine &%s called", SvPVX(sub_name));
+ if (!cv)
+ DIE("Not a CODE reference");
+ goto retry;
}
gimme = GIMME_V;
- if ((PL_op->op_private & OPpENTERSUB_DB) && GvCV(PL_DBsub) && !CvNODEBUG(cv))
+ if ((PL_op->op_private & OPpENTERSUB_DB) && GvCV(PL_DBsub) && !CvNODEBUG(cv)) {
cv = get_db_sub(&sv, cv);
- if (!cv)
- DIE("No DBsub routine");
+ if (!cv)
+ DIE("No DBsub routine");
+ }
#ifdef USE_THREADS
/*
if (SP > PL_stack_base + TOPMARK)
sv = *(PL_stack_base + TOPMARK + 1);
else {
- MUTEX_UNLOCK(CvMUTEXP(cv));
- croak("no argument for locked method call");
+ AV *av = (AV*)PL_curpad[0];
+ if (hasargs || !av || AvFILLp(av) < 0
+ || !(sv = AvARRAY(av)[0]))
+ {
+ MUTEX_UNLOCK(CvMUTEXP(cv));
+ croak("no argument for locked method call");
+ }
}
if (SvROK(sv))
sv = SvRV(sv);
#endif /* USE_THREADS */
if (CvXSUB(cv)) {
+#ifdef PERL_XSUB_OLDSTYLE
if (CvOLDSTYLE(cv)) {
I32 (*fp3)_((int,int,int));
dMARK;
items);
PL_stack_sp = PL_stack_base + items;
}
- else {
+ else
+#endif /* PERL_XSUB_OLDSTYLE */
+ {
I32 markix = TOPMARK;
PUTBACK;
PUTBACK ;
}
}
- if (PL_curcopdb) { /* We assume that the first
- XSUB in &DB::sub is the
- called one. */
+ /* We assume first XSUB in &DB::sub is the called one. */
+ if (PL_curcopdb) {
SAVESPTR(PL_curcop);
PL_curcop = PL_curcopdb;
PL_curcopdb = NULL;
projects / p5sagit/p5-mst-13.2.git / blobdiff