3 * Copyright (c) 1991-1999, Larry Wall
5 * You may distribute under the terms of either the GNU General Public
6 * License or the Artistic License, as specified in the README file.
11 * Now far ahead the Road has gone,
12 * And I must follow, if I can,
13 * Pursuing it with eager feet,
14 * Until it joins some larger way
15 * Where many paths and errands meet.
16 * And whither then? I cannot say.
20 #define PERL_IN_PP_CTL_C
24 #define WORD_ALIGN sizeof(U16)
27 #define DOCATCH(o) ((CATCH_GET == TRUE) ? docatch(o) : (o))
30 #define CALLOP this->*PL_op
35 static I32 sortcv(pTHXo_ SV *a, SV *b);
36 static I32 sv_ncmp(pTHXo_ SV *a, SV *b);
37 static I32 sv_i_ncmp(pTHXo_ SV *a, SV *b);
38 static I32 amagic_ncmp(pTHXo_ SV *a, SV *b);
39 static I32 amagic_i_ncmp(pTHXo_ SV *a, SV *b);
40 static I32 amagic_cmp(pTHXo_ SV *a, SV *b);
41 static I32 amagic_cmp_locale(pTHXo_ SV *a, SV *b);
43 static I32 sv_cmp_static(pTHXo_ SV *a, SV *b);
44 static I32 sv_cmp_locale_static(pTHXo_ SV *a, SV *b);
46 #define sv_cmp_static Perl_sv_cmp
47 #define sv_cmp_locale_static Perl_sv_cmp_locale
56 cxix = dopoptosub(cxstack_ix);
60 switch (cxstack[cxix].blk_gimme) {
77 /* XXXX Should store the old value to allow for tie/overload - and
78 restore in regcomp, where marked with XXXX. */
86 register PMOP *pm = (PMOP*)cLOGOP->op_other;
90 MAGIC *mg = Null(MAGIC*);
94 SV *sv = SvRV(tmpstr);
96 mg = mg_find(sv, 'r');
99 regexp *re = (regexp *)mg->mg_obj;
100 ReREFCNT_dec(pm->op_pmregexp);
101 pm->op_pmregexp = ReREFCNT_inc(re);
104 t = SvPV(tmpstr, len);
106 /* Check against the last compiled regexp. */
107 if (!pm->op_pmregexp || !pm->op_pmregexp->precomp ||
108 pm->op_pmregexp->prelen != len ||
109 memNE(pm->op_pmregexp->precomp, t, len))
111 if (pm->op_pmregexp) {
112 ReREFCNT_dec(pm->op_pmregexp);
113 pm->op_pmregexp = Null(REGEXP*); /* crucial if regcomp aborts */
115 if (PL_op->op_flags & OPf_SPECIAL)
116 PL_reginterp_cnt = I32_MAX; /* Mark as safe. */
118 pm->op_pmflags = pm->op_pmpermflags; /* reset case sensitivity */
119 pm->op_pmregexp = CALLREGCOMP(aTHX_ t, t + len, pm);
120 PL_reginterp_cnt = 0; /* XXXX Be extra paranoid - needed
121 inside tie/overload accessors. */
125 #ifndef INCOMPLETE_TAINTS
128 pm->op_pmdynflags |= PMdf_TAINTED;
130 pm->op_pmdynflags &= ~PMdf_TAINTED;
134 if (!pm->op_pmregexp->prelen && PL_curpm)
136 else if (strEQ("\\s+", pm->op_pmregexp->precomp))
137 pm->op_pmflags |= PMf_WHITE;
139 if (pm->op_pmflags & PMf_KEEP) {
140 pm->op_private &= ~OPpRUNTIME; /* no point compiling again */
141 cLOGOP->op_first->op_next = PL_op->op_next;
149 register PMOP *pm = (PMOP*) cLOGOP->op_other;
150 register PERL_CONTEXT *cx = &cxstack[cxstack_ix];
151 register SV *dstr = cx->sb_dstr;
152 register char *s = cx->sb_s;
153 register char *m = cx->sb_m;
154 char *orig = cx->sb_orig;
155 register REGEXP *rx = cx->sb_rx;
157 rxres_restore(&cx->sb_rxres, rx);
159 if (cx->sb_iters++) {
160 if (cx->sb_iters > cx->sb_maxiters)
161 DIE(aTHX_ "Substitution loop");
163 if (!(cx->sb_rxtainted & 2) && SvTAINTED(TOPs))
164 cx->sb_rxtainted |= 2;
165 sv_catsv(dstr, POPs);
168 if (cx->sb_once || !CALLREGEXEC(aTHX_ rx, s, cx->sb_strend, orig,
169 s == m, cx->sb_targ, NULL,
170 ((cx->sb_rflags & REXEC_COPY_STR)
171 ? (REXEC_IGNOREPOS|REXEC_NOT_FIRST)
172 : (REXEC_COPY_STR|REXEC_IGNOREPOS|REXEC_NOT_FIRST))))
174 SV *targ = cx->sb_targ;
175 sv_catpvn(dstr, s, cx->sb_strend - s);
177 cx->sb_rxtainted |= RX_MATCH_TAINTED(rx);
179 (void)SvOOK_off(targ);
180 Safefree(SvPVX(targ));
181 SvPVX(targ) = SvPVX(dstr);
182 SvCUR_set(targ, SvCUR(dstr));
183 SvLEN_set(targ, SvLEN(dstr));
187 TAINT_IF(cx->sb_rxtainted & 1);
188 PUSHs(sv_2mortal(newSViv((I32)cx->sb_iters - 1)));
190 (void)SvPOK_only(targ);
191 TAINT_IF(cx->sb_rxtainted);
195 LEAVE_SCOPE(cx->sb_oldsave);
197 RETURNOP(pm->op_next);
200 if (RX_MATCH_COPIED(rx) && rx->subbeg != orig) {
203 cx->sb_orig = orig = rx->subbeg;
205 cx->sb_strend = s + (cx->sb_strend - m);
207 cx->sb_m = m = rx->startp[0] + orig;
208 sv_catpvn(dstr, s, m-s);
209 cx->sb_s = rx->endp[0] + orig;
210 cx->sb_rxtainted |= RX_MATCH_TAINTED(rx);
211 rxres_save(&cx->sb_rxres, rx);
212 RETURNOP(pm->op_pmreplstart);
216 Perl_rxres_save(pTHX_ void **rsp, REGEXP *rx)
221 if (!p || p[1] < rx->nparens) {
222 i = 6 + rx->nparens * 2;
230 *p++ = (UV)(RX_MATCH_COPIED(rx) ? rx->subbeg : Nullch);
231 RX_MATCH_COPIED_off(rx);
235 *p++ = (UV)rx->subbeg;
236 *p++ = (UV)rx->sublen;
237 for (i = 0; i <= rx->nparens; ++i) {
238 *p++ = (UV)rx->startp[i];
239 *p++ = (UV)rx->endp[i];
244 Perl_rxres_restore(pTHX_ void **rsp, REGEXP *rx)
249 if (RX_MATCH_COPIED(rx))
250 Safefree(rx->subbeg);
251 RX_MATCH_COPIED_set(rx, *p);
256 rx->subbeg = (char*)(*p++);
257 rx->sublen = (I32)(*p++);
258 for (i = 0; i <= rx->nparens; ++i) {
259 rx->startp[i] = (I32)(*p++);
260 rx->endp[i] = (I32)(*p++);
265 Perl_rxres_free(pTHX_ void **rsp)
270 Safefree((char*)(*p));
278 djSP; dMARK; dORIGMARK;
279 register SV *tmpForm = *++MARK;
291 bool chopspace = (strchr(PL_chopset, ' ') != Nullch);
297 STRLEN fudge = SvCUR(tmpForm) * (IN_UTF8 ? 3 : 1) + 1;
299 if (!SvMAGICAL(tmpForm) || !SvCOMPILED(tmpForm)) {
300 SvREADONLY_off(tmpForm);
301 doparseform(tmpForm);
304 SvPV_force(PL_formtarget, len);
305 t = SvGROW(PL_formtarget, len + fudge + 1); /* XXX SvCUR bad */
307 f = SvPV(tmpForm, len);
308 /* need to jump to the next word */
309 s = f + len + WORD_ALIGN - SvCUR(tmpForm) % WORD_ALIGN;
318 case FF_LITERAL: arg = fpc[1]; name = "LITERAL"; break;
319 case FF_BLANK: arg = fpc[1]; name = "BLANK"; break;
320 case FF_SKIP: arg = fpc[1]; name = "SKIP"; break;
321 case FF_FETCH: arg = fpc[1]; name = "FETCH"; break;
322 case FF_DECIMAL: arg = fpc[1]; name = "DECIMAL"; break;
324 case FF_CHECKNL: name = "CHECKNL"; break;
325 case FF_CHECKCHOP: name = "CHECKCHOP"; break;
326 case FF_SPACE: name = "SPACE"; break;
327 case FF_HALFSPACE: name = "HALFSPACE"; break;
328 case FF_ITEM: name = "ITEM"; break;
329 case FF_CHOP: name = "CHOP"; break;
330 case FF_LINEGLOB: name = "LINEGLOB"; break;
331 case FF_NEWLINE: name = "NEWLINE"; break;
332 case FF_MORE: name = "MORE"; break;
333 case FF_LINEMARK: name = "LINEMARK"; break;
334 case FF_END: name = "END"; break;
337 PerlIO_printf(PerlIO_stderr(), "%-16s%ld\n", name, (long) arg);
339 PerlIO_printf(PerlIO_stderr(), "%-16s\n", name);
367 if (ckWARN(WARN_SYNTAX))
368 Perl_warner(aTHX_ WARN_SYNTAX, "Not enough format arguments");
373 item = s = SvPV(sv, len);
376 itemsize = sv_len_utf8(sv);
377 if (itemsize != len) {
379 if (itemsize > fieldsize) {
380 itemsize = fieldsize;
381 itembytes = itemsize;
382 sv_pos_u2b(sv, &itembytes, 0);
386 send = chophere = s + itembytes;
395 sv_pos_b2u(sv, &itemsize);
399 if (itemsize > fieldsize)
400 itemsize = fieldsize;
401 send = chophere = s + itemsize;
413 item = s = SvPV(sv, len);
416 itemsize = sv_len_utf8(sv);
417 if (itemsize != len) {
419 if (itemsize <= fieldsize) {
420 send = chophere = s + itemsize;
431 itemsize = fieldsize;
432 itembytes = itemsize;
433 sv_pos_u2b(sv, &itembytes, 0);
434 send = chophere = s + itembytes;
435 while (s < send || (s == send && isSPACE(*s))) {
445 if (strchr(PL_chopset, *s))
450 itemsize = chophere - item;
451 sv_pos_b2u(sv, &itemsize);
456 if (itemsize <= fieldsize) {
457 send = chophere = s + itemsize;
468 itemsize = fieldsize;
469 send = chophere = s + itemsize;
470 while (s < send || (s == send && isSPACE(*s))) {
480 if (strchr(PL_chopset, *s))
485 itemsize = chophere - item;
490 arg = fieldsize - itemsize;
499 arg = fieldsize - itemsize;
514 switch (UTF8SKIP(s)) {
525 if ( !((*t++ = *s++) & ~31) )
533 int ch = *t++ = *s++;
536 if ( !((*t++ = *s++) & ~31) )
545 while (*s && isSPACE(*s))
552 item = s = SvPV(sv, len);
565 SvCUR_set(PL_formtarget, t - SvPVX(PL_formtarget));
566 sv_catpvn(PL_formtarget, item, itemsize);
567 SvGROW(PL_formtarget, SvCUR(PL_formtarget) + fudge + 1);
568 t = SvPVX(PL_formtarget) + SvCUR(PL_formtarget);
573 /* If the field is marked with ^ and the value is undefined,
576 if ((arg & 512) && !SvOK(sv)) {
584 /* Formats aren't yet marked for locales, so assume "yes". */
586 RESTORE_NUMERIC_LOCAL();
587 #if defined(USE_LONG_DOUBLE)
589 sprintf(t, "%#*.*Lf",
590 (int) fieldsize, (int) arg & 255, value);
592 sprintf(t, "%*.0Lf", (int) fieldsize, value);
597 (int) fieldsize, (int) arg & 255, value);
600 (int) fieldsize, value);
603 RESTORE_NUMERIC_STANDARD();
610 while (t-- > linemark && *t == ' ') ;
618 if (arg) { /* repeat until fields exhausted? */
620 SvCUR_set(PL_formtarget, t - SvPVX(PL_formtarget));
621 lines += FmLINES(PL_formtarget);
624 if (strnEQ(linemark, linemark - arg, arg))
625 DIE(aTHX_ "Runaway format");
627 FmLINES(PL_formtarget) = lines;
629 RETURNOP(cLISTOP->op_first);
642 while (*s && isSPACE(*s) && s < send)
646 arg = fieldsize - itemsize;
653 if (strnEQ(s," ",3)) {
654 while (s > SvPVX(PL_formtarget) && isSPACE(s[-1]))
665 SvCUR_set(PL_formtarget, t - SvPVX(PL_formtarget));
666 FmLINES(PL_formtarget) += lines;
678 if (PL_stack_base + *PL_markstack_ptr == SP) {
680 if (GIMME_V == G_SCALAR)
681 XPUSHs(sv_2mortal(newSViv(0)));
682 RETURNOP(PL_op->op_next->op_next);
684 PL_stack_sp = PL_stack_base + *PL_markstack_ptr + 1;
685 pp_pushmark(); /* push dst */
686 pp_pushmark(); /* push src */
687 ENTER; /* enter outer scope */
690 /* SAVE_DEFSV does *not* suffice here for USE_THREADS */
692 ENTER; /* enter inner scope */
695 src = PL_stack_base[*PL_markstack_ptr];
700 if (PL_op->op_type == OP_MAPSTART)
701 pp_pushmark(); /* push top */
702 return ((LOGOP*)PL_op->op_next)->op_other;
707 DIE(aTHX_ "panic: mapstart"); /* uses grepstart */
713 I32 diff = (SP - PL_stack_base) - *PL_markstack_ptr;
719 ++PL_markstack_ptr[-1];
721 if (diff > PL_markstack_ptr[-1] - PL_markstack_ptr[-2]) {
722 shift = diff - (PL_markstack_ptr[-1] - PL_markstack_ptr[-2]);
723 count = (SP - PL_stack_base) - PL_markstack_ptr[-1] + 2;
728 PL_markstack_ptr[-1] += shift;
729 *PL_markstack_ptr += shift;
733 dst = PL_stack_base + (PL_markstack_ptr[-2] += diff) - 1;
736 *dst-- = SvTEMP(TOPs) ? POPs : sv_mortalcopy(POPs);
738 LEAVE; /* exit inner scope */
741 if (PL_markstack_ptr[-1] > *PL_markstack_ptr) {
745 (void)POPMARK; /* pop top */
746 LEAVE; /* exit outer scope */
747 (void)POPMARK; /* pop src */
748 items = --*PL_markstack_ptr - PL_markstack_ptr[-1];
749 (void)POPMARK; /* pop dst */
750 SP = PL_stack_base + POPMARK; /* pop original mark */
751 if (gimme == G_SCALAR) {
755 else if (gimme == G_ARRAY)
762 ENTER; /* enter inner scope */
765 src = PL_stack_base[PL_markstack_ptr[-1]];
769 RETURNOP(cLOGOP->op_other);
775 djSP; dMARK; dORIGMARK;
777 SV **myorigmark = ORIGMARK;
783 OP* nextop = PL_op->op_next;
786 if (gimme != G_ARRAY) {
792 SAVEPPTR(PL_sortcop);
793 if (PL_op->op_flags & OPf_STACKED) {
794 if (PL_op->op_flags & OPf_SPECIAL) {
795 OP *kid = cLISTOP->op_first->op_sibling; /* pass pushmark */
796 kid = kUNOP->op_first; /* pass rv2gv */
797 kid = kUNOP->op_first; /* pass leave */
798 PL_sortcop = kid->op_next;
799 stash = PL_curcop->cop_stash;
802 cv = sv_2cv(*++MARK, &stash, &gv, 0);
803 if (!(cv && CvROOT(cv))) {
805 SV *tmpstr = sv_newmortal();
806 gv_efullname3(tmpstr, gv, Nullch);
807 if (cv && CvXSUB(cv))
808 DIE(aTHX_ "Xsub \"%s\" called in sort", SvPVX(tmpstr));
809 DIE(aTHX_ "Undefined sort subroutine \"%s\" called",
814 DIE(aTHX_ "Xsub called in sort");
815 DIE(aTHX_ "Undefined subroutine in sort");
817 DIE(aTHX_ "Not a CODE reference in sort");
819 PL_sortcop = CvSTART(cv);
820 SAVESPTR(CvROOT(cv)->op_ppaddr);
821 CvROOT(cv)->op_ppaddr = PL_ppaddr[OP_NULL];
824 PL_curpad = AvARRAY((AV*)AvARRAY(CvPADLIST(cv))[1]);
829 stash = PL_curcop->cop_stash;
833 while (MARK < SP) { /* This may or may not shift down one here. */
835 if (*up = *++MARK) { /* Weed out nulls. */
837 if (!PL_sortcop && !SvPOK(*up)) {
842 (void)sv_2pv(*up, &n_a);
847 max = --up - myorigmark;
852 bool oldcatch = CATCH_GET;
858 PUSHSTACKi(PERLSI_SORT);
859 if (PL_sortstash != stash) {
860 PL_firstgv = gv_fetchpv("a", TRUE, SVt_PV);
861 PL_secondgv = gv_fetchpv("b", TRUE, SVt_PV);
862 PL_sortstash = stash;
865 SAVESPTR(GvSV(PL_firstgv));
866 SAVESPTR(GvSV(PL_secondgv));
868 PUSHBLOCK(cx, CXt_NULL, PL_stack_base);
869 if (!(PL_op->op_flags & OPf_SPECIAL)) {
870 bool hasargs = FALSE;
871 cx->cx_type = CXt_SUB;
872 cx->blk_gimme = G_SCALAR;
875 (void)SvREFCNT_inc(cv); /* in preparation for POPSUB */
877 PL_sortcxix = cxstack_ix;
878 qsortsv((myorigmark+1), max, sortcv);
880 POPBLOCK(cx,PL_curpm);
888 MEXTEND(SP, 20); /* Can't afford stack realloc on signal. */
889 qsortsv(ORIGMARK+1, max,
890 (PL_op->op_private & OPpSORT_NUMERIC)
891 ? ( (PL_op->op_private & OPpSORT_INTEGER)
892 ? ( overloading ? amagic_i_ncmp : sv_i_ncmp)
893 : ( overloading ? amagic_ncmp : sv_ncmp))
894 : ( (PL_op->op_private & OPpLOCALE)
897 : sv_cmp_locale_static)
898 : ( overloading ? amagic_cmp : sv_cmp_static)));
899 if (PL_op->op_private & OPpSORT_REVERSE) {
901 SV **q = ORIGMARK+max;
911 PL_stack_sp = ORIGMARK + max;
919 if (GIMME == G_ARRAY)
921 if (SvTRUEx(PAD_SV(PL_op->op_targ)))
922 return cLOGOP->op_other;
931 if (GIMME == G_ARRAY) {
932 RETURNOP(((LOGOP*)cUNOP->op_first)->op_other);
936 SV *targ = PAD_SV(PL_op->op_targ);
938 if ((PL_op->op_private & OPpFLIP_LINENUM)
939 ? (PL_last_in_gv && SvIV(sv) == (IV)IoLINES(GvIOp(PL_last_in_gv)))
941 sv_setiv(PAD_SV(cUNOP->op_first->op_targ), 1);
942 if (PL_op->op_flags & OPf_SPECIAL) {
950 RETURNOP(((LOGOP*)cUNOP->op_first)->op_other);
963 if (GIMME == G_ARRAY) {
969 if (SvGMAGICAL(left))
971 if (SvGMAGICAL(right))
974 if (SvNIOKp(left) || !SvPOKp(left) ||
975 (looks_like_number(left) && *SvPVX(left) != '0') )
977 if (SvNV(left) < IV_MIN || SvNV(right) > IV_MAX)
978 Perl_croak(aTHX_ "Range iterator outside integer range");
989 sv = sv_2mortal(newSViv(i++));
994 SV *final = sv_mortalcopy(right);
996 char *tmps = SvPV(final, len);
998 sv = sv_mortalcopy(left);
1000 while (!SvNIOKp(sv) && SvCUR(sv) <= len) {
1002 if (strEQ(SvPVX(sv),tmps))
1004 sv = sv_2mortal(newSVsv(sv));
1011 SV *targ = PAD_SV(cUNOP->op_first->op_targ);
1013 if ((PL_op->op_private & OPpFLIP_LINENUM)
1014 ? (PL_last_in_gv && SvIV(sv) == (IV)IoLINES(GvIOp(PL_last_in_gv)))
1016 sv_setiv(PAD_SV(((UNOP*)cUNOP->op_first)->op_first->op_targ), 0);
1017 sv_catpv(targ, "E0");
1028 S_dopoptolabel(pTHX_ char *label)
1032 register PERL_CONTEXT *cx;
1034 for (i = cxstack_ix; i >= 0; i--) {
1036 switch (CxTYPE(cx)) {
1038 if (ckWARN(WARN_UNSAFE))
1039 Perl_warner(aTHX_ WARN_UNSAFE, "Exiting substitution via %s",
1040 PL_op_name[PL_op->op_type]);
1043 if (ckWARN(WARN_UNSAFE))
1044 Perl_warner(aTHX_ WARN_UNSAFE, "Exiting subroutine via %s",
1045 PL_op_name[PL_op->op_type]);
1048 if (ckWARN(WARN_UNSAFE))
1049 Perl_warner(aTHX_ WARN_UNSAFE, "Exiting eval via %s",
1050 PL_op_name[PL_op->op_type]);
1053 if (ckWARN(WARN_UNSAFE))
1054 Perl_warner(aTHX_ WARN_UNSAFE, "Exiting pseudo-block via %s",
1055 PL_op_name[PL_op->op_type]);
1058 if (!cx->blk_loop.label ||
1059 strNE(label, cx->blk_loop.label) ) {
1060 DEBUG_l(Perl_deb(aTHX_ "(Skipping label #%ld %s)\n",
1061 (long)i, cx->blk_loop.label));
1064 DEBUG_l( Perl_deb(aTHX_ "(Found label #%ld %s)\n", (long)i, label));
1072 Perl_dowantarray(pTHX)
1074 I32 gimme = block_gimme();
1075 return (gimme == G_VOID) ? G_SCALAR : gimme;
1079 Perl_block_gimme(pTHX)
1084 cxix = dopoptosub(cxstack_ix);
1088 switch (cxstack[cxix].blk_gimme) {
1096 Perl_croak(aTHX_ "panic: bad gimme: %d\n", cxstack[cxix].blk_gimme);
1103 S_dopoptosub(pTHX_ I32 startingblock)
1106 return dopoptosub_at(cxstack, startingblock);
1110 S_dopoptosub_at(pTHX_ PERL_CONTEXT *cxstk, I32 startingblock)
1114 register PERL_CONTEXT *cx;
1115 for (i = startingblock; i >= 0; i--) {
1117 switch (CxTYPE(cx)) {
1122 DEBUG_l( Perl_deb(aTHX_ "(Found sub #%ld)\n", (long)i));
1130 S_dopoptoeval(pTHX_ I32 startingblock)
1134 register PERL_CONTEXT *cx;
1135 for (i = startingblock; i >= 0; i--) {
1137 switch (CxTYPE(cx)) {
1141 DEBUG_l( Perl_deb(aTHX_ "(Found eval #%ld)\n", (long)i));
1149 S_dopoptoloop(pTHX_ I32 startingblock)
1153 register PERL_CONTEXT *cx;
1154 for (i = startingblock; i >= 0; i--) {
1156 switch (CxTYPE(cx)) {
1158 if (ckWARN(WARN_UNSAFE))
1159 Perl_warner(aTHX_ WARN_UNSAFE, "Exiting substitution via %s",
1160 PL_op_name[PL_op->op_type]);
1163 if (ckWARN(WARN_UNSAFE))
1164 Perl_warner(aTHX_ WARN_UNSAFE, "Exiting subroutine via %s",
1165 PL_op_name[PL_op->op_type]);
1168 if (ckWARN(WARN_UNSAFE))
1169 Perl_warner(aTHX_ WARN_UNSAFE, "Exiting eval via %s",
1170 PL_op_name[PL_op->op_type]);
1173 if (ckWARN(WARN_UNSAFE))
1174 Perl_warner(aTHX_ WARN_UNSAFE, "Exiting pseudo-block via %s",
1175 PL_op_name[PL_op->op_type]);
1178 DEBUG_l( Perl_deb(aTHX_ "(Found loop #%ld)\n", (long)i));
1186 Perl_dounwind(pTHX_ I32 cxix)
1189 register PERL_CONTEXT *cx;
1193 while (cxstack_ix > cxix) {
1194 cx = &cxstack[cxstack_ix];
1195 DEBUG_l(PerlIO_printf(Perl_debug_log, "Unwinding block %ld, type %s\n",
1196 (long) cxstack_ix, PL_block_type[CxTYPE(cx)]));
1197 /* Note: we don't need to restore the base context info till the end. */
1198 switch (CxTYPE(cx)) {
1201 continue; /* not break */
1219 * Closures mentioned at top level of eval cannot be referenced
1220 * again, and their presence indirectly causes a memory leak.
1221 * (Note that the fact that compcv and friends are still set here
1222 * is, AFAIK, an accident.) --Chip
1224 * XXX need to get comppad et al from eval's cv rather than
1225 * relying on the incidental global values.
1228 S_free_closures(pTHX)
1231 SV **svp = AvARRAY(PL_comppad_name);
1233 for (ix = AvFILLp(PL_comppad_name); ix >= 0; ix--) {
1235 if (sv && sv != &PL_sv_undef && *SvPVX(sv) == '&') {
1237 svp[ix] = &PL_sv_undef;
1241 SvREFCNT_dec(CvOUTSIDE(sv));
1242 CvOUTSIDE(sv) = Nullcv;
1255 Perl_die_where(pTHX_ char *message, STRLEN msglen)
1261 register PERL_CONTEXT *cx;
1266 if (PL_in_eval & EVAL_KEEPERR) {
1269 svp = hv_fetch(ERRHV, message, msglen, TRUE);
1272 static char prefix[] = "\t(in cleanup) ";
1274 sv_upgrade(*svp, SVt_IV);
1275 (void)SvIOK_only(*svp);
1278 SvGROW(err, SvCUR(err)+sizeof(prefix)+msglen);
1279 sv_catpvn(err, prefix, sizeof(prefix)-1);
1280 sv_catpvn(err, message, msglen);
1281 if (ckWARN(WARN_UNSAFE)) {
1282 STRLEN start = SvCUR(err)-msglen-sizeof(prefix)+1;
1283 Perl_warner(aTHX_ WARN_UNSAFE, SvPVX(err)+start);
1290 sv_setpvn(ERRSV, message, msglen);
1293 message = SvPVx(ERRSV, msglen);
1295 while ((cxix = dopoptoeval(cxstack_ix)) < 0 && PL_curstackinfo->si_prev) {
1303 if (cxix < cxstack_ix)
1306 POPBLOCK(cx,PL_curpm);
1307 if (CxTYPE(cx) != CXt_EVAL) {
1308 PerlIO_write(PerlIO_stderr(), "panic: die ", 11);
1309 PerlIO_write(PerlIO_stderr(), message, msglen);
1314 if (gimme == G_SCALAR)
1315 *++newsp = &PL_sv_undef;
1316 PL_stack_sp = newsp;
1320 if (optype == OP_REQUIRE) {
1321 char* msg = SvPVx(ERRSV, n_a);
1322 DIE(aTHX_ "%s", *msg ? msg : "Compilation failed in require");
1324 return pop_return();
1328 message = SvPVx(ERRSV, msglen);
1331 /* SFIO can really mess with your errno */
1334 PerlIO_write(PerlIO_stderr(), message, msglen);
1335 (void)PerlIO_flush(PerlIO_stderr());
1348 if (SvTRUE(left) != SvTRUE(right))
1360 RETURNOP(cLOGOP->op_other);
1369 RETURNOP(cLOGOP->op_other);
1375 register I32 cxix = dopoptosub(cxstack_ix);
1376 register PERL_CONTEXT *cx;
1377 register PERL_CONTEXT *ccstack = cxstack;
1378 PERL_SI *top_si = PL_curstackinfo;
1389 /* we may be in a higher stacklevel, so dig down deeper */
1390 while (cxix < 0 && top_si->si_type != PERLSI_MAIN) {
1391 top_si = top_si->si_prev;
1392 ccstack = top_si->si_cxstack;
1393 cxix = dopoptosub_at(ccstack, top_si->si_cxix);
1396 if (GIMME != G_ARRAY)
1400 if (PL_DBsub && cxix >= 0 &&
1401 ccstack[cxix].blk_sub.cv == GvCV(PL_DBsub))
1405 cxix = dopoptosub_at(ccstack, cxix - 1);
1408 cx = &ccstack[cxix];
1409 if (CxTYPE(cx) == CXt_SUB) {
1410 dbcxix = dopoptosub_at(ccstack, cxix - 1);
1411 /* We expect that ccstack[dbcxix] is CXt_SUB, anyway, the
1412 field below is defined for any cx. */
1413 if (PL_DBsub && dbcxix >= 0 && ccstack[dbcxix].blk_sub.cv == GvCV(PL_DBsub))
1414 cx = &ccstack[dbcxix];
1417 if (GIMME != G_ARRAY) {
1418 hv = cx->blk_oldcop->cop_stash;
1420 PUSHs(&PL_sv_undef);
1423 sv_setpv(TARG, HvNAME(hv));
1429 hv = cx->blk_oldcop->cop_stash;
1431 PUSHs(&PL_sv_undef);
1433 PUSHs(sv_2mortal(newSVpv(HvNAME(hv), 0)));
1434 PUSHs(sv_2mortal(newSVpvn(SvPVX(GvSV(cx->blk_oldcop->cop_filegv)),
1435 SvCUR(GvSV(cx->blk_oldcop->cop_filegv)))));
1436 PUSHs(sv_2mortal(newSViv((I32)cx->blk_oldcop->cop_line)));
1439 if (CxTYPE(cx) == CXt_SUB) { /* So is ccstack[dbcxix]. */
1441 gv_efullname3(sv, CvGV(ccstack[cxix].blk_sub.cv), Nullch);
1442 PUSHs(sv_2mortal(sv));
1443 PUSHs(sv_2mortal(newSViv((I32)cx->blk_sub.hasargs)));
1446 PUSHs(sv_2mortal(newSVpvn("(eval)",6)));
1447 PUSHs(sv_2mortal(newSViv(0)));
1449 gimme = (I32)cx->blk_gimme;
1450 if (gimme == G_VOID)
1451 PUSHs(&PL_sv_undef);
1453 PUSHs(sv_2mortal(newSViv(gimme & G_ARRAY)));
1454 if (CxTYPE(cx) == CXt_EVAL) {
1455 if (cx->blk_eval.old_op_type == OP_ENTEREVAL) {
1456 PUSHs(cx->blk_eval.cur_text);
1459 else if (cx->blk_eval.old_name) { /* Try blocks have old_name == 0. */
1460 /* Require, put the name. */
1461 PUSHs(sv_2mortal(newSVpv(cx->blk_eval.old_name, 0)));
1465 else if (CxTYPE(cx) == CXt_SUB &&
1466 cx->blk_sub.hasargs &&
1467 PL_curcop->cop_stash == PL_debstash)
1469 AV *ary = cx->blk_sub.argarray;
1470 int off = AvARRAY(ary) - AvALLOC(ary);
1474 PL_dbargs = GvAV(gv_AVadd(tmpgv = gv_fetchpv("DB::args", TRUE,
1477 AvREAL_off(PL_dbargs); /* XXX Should be REIFY */
1480 if (AvMAX(PL_dbargs) < AvFILLp(ary) + off)
1481 av_extend(PL_dbargs, AvFILLp(ary) + off);
1482 Copy(AvALLOC(ary), AvARRAY(PL_dbargs), AvFILLp(ary) + 1 + off, SV*);
1483 AvFILLp(PL_dbargs) = AvFILLp(ary) + off;
1485 /* XXX only hints propagated via op_private are currently
1486 * visible (others are not easily accessible, since they
1487 * use the global PL_hints) */
1488 PUSHs(sv_2mortal(newSViv((I32)cx->blk_oldcop->op_private &
1489 HINT_PRIVATE_MASK)));
1503 sv_reset(tmps, PL_curcop->cop_stash);
1515 PL_curcop = (COP*)PL_op;
1516 TAINT_NOT; /* Each statement is presumed innocent */
1517 PL_stack_sp = PL_stack_base + cxstack[cxstack_ix].blk_oldsp;
1520 if (PL_op->op_private || SvIV(PL_DBsingle) || SvIV(PL_DBsignal) || SvIV(PL_DBtrace))
1524 register PERL_CONTEXT *cx;
1525 I32 gimme = G_ARRAY;
1532 DIE(aTHX_ "No DB::DB routine defined");
1534 if (CvDEPTH(cv) >= 1 && !(PL_debug & (1<<30))) /* don't do recursive DB::DB call */
1546 push_return(PL_op->op_next);
1547 PUSHBLOCK(cx, CXt_SUB, SP);
1550 (void)SvREFCNT_inc(cv);
1551 SAVESPTR(PL_curpad);
1552 PL_curpad = AvARRAY((AV*)*av_fetch(CvPADLIST(cv),1,FALSE));
1553 RETURNOP(CvSTART(cv));
1567 register PERL_CONTEXT *cx;
1568 I32 gimme = GIMME_V;
1575 if (PL_op->op_flags & OPf_SPECIAL) {
1577 svp = &THREADSV(PL_op->op_targ); /* per-thread variable */
1578 SAVEGENERICSV(*svp);
1582 #endif /* USE_THREADS */
1583 if (PL_op->op_targ) {
1584 svp = &PL_curpad[PL_op->op_targ]; /* "my" variable */
1588 svp = &GvSV((GV*)POPs); /* symbol table variable */
1589 SAVEGENERICSV(*svp);
1595 PUSHBLOCK(cx, CXt_LOOP, SP);
1596 PUSHLOOP(cx, svp, MARK);
1597 if (PL_op->op_flags & OPf_STACKED) {
1598 cx->blk_loop.iterary = (AV*)SvREFCNT_inc(POPs);
1599 if (SvTYPE(cx->blk_loop.iterary) != SVt_PVAV) {
1601 if (SvNIOKp(sv) || !SvPOKp(sv) ||
1602 (looks_like_number(sv) && *SvPVX(sv) != '0')) {
1603 if (SvNV(sv) < IV_MIN ||
1604 SvNV((SV*)cx->blk_loop.iterary) >= IV_MAX)
1605 Perl_croak(aTHX_ "Range iterator outside integer range");
1606 cx->blk_loop.iterix = SvIV(sv);
1607 cx->blk_loop.itermax = SvIV((SV*)cx->blk_loop.iterary);
1610 cx->blk_loop.iterlval = newSVsv(sv);
1614 cx->blk_loop.iterary = PL_curstack;
1615 AvFILLp(PL_curstack) = SP - PL_stack_base;
1616 cx->blk_loop.iterix = MARK - PL_stack_base;
1625 register PERL_CONTEXT *cx;
1626 I32 gimme = GIMME_V;
1632 PUSHBLOCK(cx, CXt_LOOP, SP);
1633 PUSHLOOP(cx, 0, SP);
1641 register PERL_CONTEXT *cx;
1642 struct block_loop cxloop;
1650 POPLOOP1(cx); /* Delay POPLOOP2 until stack values are safe */
1653 if (gimme == G_VOID)
1655 else if (gimme == G_SCALAR) {
1657 *++newsp = sv_mortalcopy(*SP);
1659 *++newsp = &PL_sv_undef;
1663 *++newsp = sv_mortalcopy(*++mark);
1664 TAINT_NOT; /* Each item is independent */
1670 POPLOOP2(); /* Stack values are safe: release loop vars ... */
1671 PL_curpm = newpm; /* ... and pop $1 et al */
1683 register PERL_CONTEXT *cx;
1684 struct block_sub cxsub;
1685 bool popsub2 = FALSE;
1691 if (PL_curstackinfo->si_type == PERLSI_SORT) {
1692 if (cxstack_ix == PL_sortcxix || dopoptosub(cxstack_ix) <= PL_sortcxix) {
1693 if (cxstack_ix > PL_sortcxix)
1694 dounwind(PL_sortcxix);
1695 AvARRAY(PL_curstack)[1] = *SP;
1696 PL_stack_sp = PL_stack_base + 1;
1701 cxix = dopoptosub(cxstack_ix);
1703 DIE(aTHX_ "Can't return outside a subroutine");
1704 if (cxix < cxstack_ix)
1708 switch (CxTYPE(cx)) {
1710 POPSUB1(cx); /* Delay POPSUB2 until stack values are safe */
1715 if (AvFILLp(PL_comppad_name) >= 0)
1718 if (optype == OP_REQUIRE &&
1719 (MARK == SP || (gimme == G_SCALAR && !SvTRUE(*SP))) )
1721 /* Unassume the success we assumed earlier. */
1722 char *name = cx->blk_eval.old_name;
1723 (void)hv_delete(GvHVn(PL_incgv), name, strlen(name), G_DISCARD);
1724 DIE(aTHX_ "%s did not return a true value", name);
1728 DIE(aTHX_ "panic: return");
1732 if (gimme == G_SCALAR) {
1735 if (cxsub.cv && CvDEPTH(cxsub.cv) > 1) {
1737 *++newsp = SvREFCNT_inc(*SP);
1742 *++newsp = sv_mortalcopy(*SP);
1745 *++newsp = (SvTEMP(*SP)) ? *SP : sv_mortalcopy(*SP);
1747 *++newsp = sv_mortalcopy(*SP);
1749 *++newsp = &PL_sv_undef;
1751 else if (gimme == G_ARRAY) {
1752 while (++MARK <= SP) {
1753 *++newsp = (popsub2 && SvTEMP(*MARK))
1754 ? *MARK : sv_mortalcopy(*MARK);
1755 TAINT_NOT; /* Each item is independent */
1758 PL_stack_sp = newsp;
1760 /* Stack values are safe: */
1762 POPSUB2(); /* release CV and @_ ... */
1764 PL_curpm = newpm; /* ... and pop $1 et al */
1767 return pop_return();
1774 register PERL_CONTEXT *cx;
1775 struct block_loop cxloop;
1776 struct block_sub cxsub;
1783 SV **mark = PL_stack_base + cxstack[cxstack_ix].blk_oldsp;
1785 if (PL_op->op_flags & OPf_SPECIAL) {
1786 cxix = dopoptoloop(cxstack_ix);
1788 DIE(aTHX_ "Can't \"last\" outside a block");
1791 cxix = dopoptolabel(cPVOP->op_pv);
1793 DIE(aTHX_ "Label not found for \"last %s\"", cPVOP->op_pv);
1795 if (cxix < cxstack_ix)
1799 switch (CxTYPE(cx)) {
1801 POPLOOP1(cx); /* Delay POPLOOP2 until stack values are safe */
1803 nextop = cxloop.last_op->op_next;
1806 POPSUB1(cx); /* Delay POPSUB2 until stack values are safe */
1808 nextop = pop_return();
1812 nextop = pop_return();
1815 DIE(aTHX_ "panic: last");
1819 if (gimme == G_SCALAR) {
1821 *++newsp = ((pop2 == CXt_SUB) && SvTEMP(*SP))
1822 ? *SP : sv_mortalcopy(*SP);
1824 *++newsp = &PL_sv_undef;
1826 else if (gimme == G_ARRAY) {
1827 while (++MARK <= SP) {
1828 *++newsp = ((pop2 == CXt_SUB) && SvTEMP(*MARK))
1829 ? *MARK : sv_mortalcopy(*MARK);
1830 TAINT_NOT; /* Each item is independent */
1836 /* Stack values are safe: */
1839 POPLOOP2(); /* release loop vars ... */
1843 POPSUB2(); /* release CV and @_ ... */
1846 PL_curpm = newpm; /* ... and pop $1 et al */
1855 register PERL_CONTEXT *cx;
1858 if (PL_op->op_flags & OPf_SPECIAL) {
1859 cxix = dopoptoloop(cxstack_ix);
1861 DIE(aTHX_ "Can't \"next\" outside a block");
1864 cxix = dopoptolabel(cPVOP->op_pv);
1866 DIE(aTHX_ "Label not found for \"next %s\"", cPVOP->op_pv);
1868 if (cxix < cxstack_ix)
1872 oldsave = PL_scopestack[PL_scopestack_ix - 1];
1873 LEAVE_SCOPE(oldsave);
1874 return cx->blk_loop.next_op;
1880 register PERL_CONTEXT *cx;
1883 if (PL_op->op_flags & OPf_SPECIAL) {
1884 cxix = dopoptoloop(cxstack_ix);
1886 DIE(aTHX_ "Can't \"redo\" outside a block");
1889 cxix = dopoptolabel(cPVOP->op_pv);
1891 DIE(aTHX_ "Label not found for \"redo %s\"", cPVOP->op_pv);
1893 if (cxix < cxstack_ix)
1897 oldsave = PL_scopestack[PL_scopestack_ix - 1];
1898 LEAVE_SCOPE(oldsave);
1899 return cx->blk_loop.redo_op;
1903 S_dofindlabel(pTHX_ OP *o, char *label, OP **opstack, OP **oplimit)
1907 static char too_deep[] = "Target of goto is too deeply nested";
1910 Perl_croak(aTHX_ too_deep);
1911 if (o->op_type == OP_LEAVE ||
1912 o->op_type == OP_SCOPE ||
1913 o->op_type == OP_LEAVELOOP ||
1914 o->op_type == OP_LEAVETRY)
1916 *ops++ = cUNOPo->op_first;
1918 Perl_croak(aTHX_ too_deep);
1921 if (o->op_flags & OPf_KIDS) {
1923 /* First try all the kids at this level, since that's likeliest. */
1924 for (kid = cUNOPo->op_first; kid; kid = kid->op_sibling) {
1925 if ((kid->op_type == OP_NEXTSTATE || kid->op_type == OP_DBSTATE) &&
1926 kCOP->cop_label && strEQ(kCOP->cop_label, label))
1929 for (kid = cUNOPo->op_first; kid; kid = kid->op_sibling) {
1930 if (kid == PL_lastgotoprobe)
1932 if ((kid->op_type == OP_NEXTSTATE || kid->op_type == OP_DBSTATE) &&
1934 (ops[-1]->op_type != OP_NEXTSTATE &&
1935 ops[-1]->op_type != OP_DBSTATE)))
1937 if (o = dofindlabel(kid, label, ops, oplimit))
1956 register PERL_CONTEXT *cx;
1957 #define GOTO_DEPTH 64
1958 OP *enterops[GOTO_DEPTH];
1960 int do_dump = (PL_op->op_type == OP_DUMP);
1961 static char must_have_label[] = "goto must have label";
1964 if (PL_op->op_flags & OPf_STACKED) {
1968 /* This egregious kludge implements goto &subroutine */
1969 if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVCV) {
1971 register PERL_CONTEXT *cx;
1972 CV* cv = (CV*)SvRV(sv);
1976 int arg_was_real = 0;
1979 if (!CvROOT(cv) && !CvXSUB(cv)) {
1984 /* autoloaded stub? */
1985 if (cv != GvCV(gv) && (cv = GvCV(gv)))
1987 autogv = gv_autoload4(GvSTASH(gv), GvNAME(gv),
1988 GvNAMELEN(gv), FALSE);
1989 if (autogv && (cv = GvCV(autogv)))
1991 tmpstr = sv_newmortal();
1992 gv_efullname3(tmpstr, gv, Nullch);
1993 DIE(aTHX_ "Goto undefined subroutine &%s",SvPVX(tmpstr));
1995 DIE(aTHX_ "Goto undefined subroutine");
1998 /* First do some returnish stuff. */
1999 cxix = dopoptosub(cxstack_ix);
2001 DIE(aTHX_ "Can't goto subroutine outside a subroutine");
2002 if (cxix < cxstack_ix)
2005 if (CxTYPE(cx) == CXt_EVAL && cx->blk_eval.old_op_type == OP_ENTEREVAL)
2006 DIE(aTHX_ "Can't goto subroutine from an eval-string");
2008 if (CxTYPE(cx) == CXt_SUB &&
2009 cx->blk_sub.hasargs) { /* put @_ back onto stack */
2010 AV* av = cx->blk_sub.argarray;
2012 items = AvFILLp(av) + 1;
2014 EXTEND(PL_stack_sp, items); /* @_ could have been extended. */
2015 Copy(AvARRAY(av), PL_stack_sp, items, SV*);
2016 PL_stack_sp += items;
2018 SvREFCNT_dec(GvAV(PL_defgv));
2019 GvAV(PL_defgv) = cx->blk_sub.savearray;
2020 #endif /* USE_THREADS */
2023 AvREAL_off(av); /* so av_clear() won't clobber elts */
2027 else if (CvXSUB(cv)) { /* put GvAV(defgv) back onto stack */
2031 av = (AV*)PL_curpad[0];
2033 av = GvAV(PL_defgv);
2035 items = AvFILLp(av) + 1;
2037 EXTEND(PL_stack_sp, items); /* @_ could have been extended. */
2038 Copy(AvARRAY(av), PL_stack_sp, items, SV*);
2039 PL_stack_sp += items;
2041 if (CxTYPE(cx) == CXt_SUB &&
2042 !(CvDEPTH(cx->blk_sub.cv) = cx->blk_sub.olddepth))
2043 SvREFCNT_dec(cx->blk_sub.cv);
2044 oldsave = PL_scopestack[PL_scopestack_ix - 1];
2045 LEAVE_SCOPE(oldsave);
2047 /* Now do some callish stuff. */
2050 #ifdef PERL_XSUB_OLDSTYLE
2051 if (CvOLDSTYLE(cv)) {
2052 I32 (*fp3)(int,int,int);
2057 fp3 = (I32(*)(int,int,int)))CvXSUB(cv;
2058 items = (*fp3)(CvXSUBANY(cv).any_i32,
2059 mark - PL_stack_base + 1,
2061 SP = PL_stack_base + items;
2064 #endif /* PERL_XSUB_OLDSTYLE */
2069 PL_stack_sp--; /* There is no cv arg. */
2070 /* Push a mark for the start of arglist */
2072 (void)(*CvXSUB(cv))(aTHXo_ cv);
2073 /* Pop the current context like a decent sub should */
2074 POPBLOCK(cx, PL_curpm);
2075 /* Do _not_ use PUTBACK, keep the XSUB's return stack! */
2078 return pop_return();
2081 AV* padlist = CvPADLIST(cv);
2082 SV** svp = AvARRAY(padlist);
2083 if (CxTYPE(cx) == CXt_EVAL) {
2084 PL_in_eval = cx->blk_eval.old_in_eval;
2085 PL_eval_root = cx->blk_eval.old_eval_root;
2086 cx->cx_type = CXt_SUB;
2087 cx->blk_sub.hasargs = 0;
2089 cx->blk_sub.cv = cv;
2090 cx->blk_sub.olddepth = CvDEPTH(cv);
2092 if (CvDEPTH(cv) < 2)
2093 (void)SvREFCNT_inc(cv);
2094 else { /* save temporaries on recursion? */
2095 if (CvDEPTH(cv) == 100 && ckWARN(WARN_RECURSION))
2096 sub_crush_depth(cv);
2097 if (CvDEPTH(cv) > AvFILLp(padlist)) {
2098 AV *newpad = newAV();
2099 SV **oldpad = AvARRAY(svp[CvDEPTH(cv)-1]);
2100 I32 ix = AvFILLp((AV*)svp[1]);
2101 svp = AvARRAY(svp[0]);
2102 for ( ;ix > 0; ix--) {
2103 if (svp[ix] != &PL_sv_undef) {
2104 char *name = SvPVX(svp[ix]);
2105 if ((SvFLAGS(svp[ix]) & SVf_FAKE)
2108 /* outer lexical or anon code */
2109 av_store(newpad, ix,
2110 SvREFCNT_inc(oldpad[ix]) );
2112 else { /* our own lexical */
2114 av_store(newpad, ix, sv = (SV*)newAV());
2115 else if (*name == '%')
2116 av_store(newpad, ix, sv = (SV*)newHV());
2118 av_store(newpad, ix, sv = NEWSV(0,0));
2123 av_store(newpad, ix, sv = NEWSV(0,0));
2127 if (cx->blk_sub.hasargs) {
2130 av_store(newpad, 0, (SV*)av);
2131 AvFLAGS(av) = AVf_REIFY;
2133 av_store(padlist, CvDEPTH(cv), (SV*)newpad);
2134 AvFILLp(padlist) = CvDEPTH(cv);
2135 svp = AvARRAY(padlist);
2139 if (!cx->blk_sub.hasargs) {
2140 AV* av = (AV*)PL_curpad[0];
2142 items = AvFILLp(av) + 1;
2144 /* Mark is at the end of the stack. */
2146 Copy(AvARRAY(av), SP + 1, items, SV*);
2151 #endif /* USE_THREADS */
2152 SAVESPTR(PL_curpad);
2153 PL_curpad = AvARRAY((AV*)svp[CvDEPTH(cv)]);
2155 if (cx->blk_sub.hasargs)
2156 #endif /* USE_THREADS */
2158 AV* av = (AV*)PL_curpad[0];
2162 cx->blk_sub.savearray = GvAV(PL_defgv);
2163 GvAV(PL_defgv) = (AV*)SvREFCNT_inc(av);
2164 #endif /* USE_THREADS */
2165 cx->blk_sub.argarray = av;
2168 if (items >= AvMAX(av) + 1) {
2170 if (AvARRAY(av) != ary) {
2171 AvMAX(av) += AvARRAY(av) - AvALLOC(av);
2172 SvPVX(av) = (char*)ary;
2174 if (items >= AvMAX(av) + 1) {
2175 AvMAX(av) = items - 1;
2176 Renew(ary,items+1,SV*);
2178 SvPVX(av) = (char*)ary;
2181 Copy(mark,AvARRAY(av),items,SV*);
2182 AvFILLp(av) = items - 1;
2183 /* preserve @_ nature */
2194 if (PERLDB_SUB) { /* Checking curstash breaks DProf. */
2196 * We do not care about using sv to call CV;
2197 * it's for informational purposes only.
2199 SV *sv = GvSV(PL_DBsub);
2202 if (PERLDB_SUB_NN) {
2203 SvIVX(sv) = (IV)cv; /* Already upgraded, saved */
2206 gv_efullname3(sv, CvGV(cv), Nullch);
2209 && (gotocv = get_cv("DB::goto", FALSE)) ) {
2210 PUSHMARK( PL_stack_sp );
2211 call_sv((SV*)gotocv, G_SCALAR | G_NODEBUG);
2215 RETURNOP(CvSTART(cv));
2219 label = SvPV(sv,n_a);
2220 if (!(do_dump || *label))
2221 DIE(aTHX_ must_have_label);
2224 else if (PL_op->op_flags & OPf_SPECIAL) {
2226 DIE(aTHX_ must_have_label);
2229 label = cPVOP->op_pv;
2231 if (label && *label) {
2236 PL_lastgotoprobe = 0;
2238 for (ix = cxstack_ix; ix >= 0; ix--) {
2240 switch (CxTYPE(cx)) {
2242 gotoprobe = PL_eval_root; /* XXX not good for nested eval */
2245 gotoprobe = cx->blk_oldcop->op_sibling;
2251 gotoprobe = cx->blk_oldcop->op_sibling;
2253 gotoprobe = PL_main_root;
2256 if (CvDEPTH(cx->blk_sub.cv)) {
2257 gotoprobe = CvROOT(cx->blk_sub.cv);
2262 DIE(aTHX_ "Can't \"goto\" outside a block");
2265 DIE(aTHX_ "panic: goto");
2266 gotoprobe = PL_main_root;
2269 retop = dofindlabel(gotoprobe, label,
2270 enterops, enterops + GOTO_DEPTH);
2273 PL_lastgotoprobe = gotoprobe;
2276 DIE(aTHX_ "Can't find label %s", label);
2278 /* pop unwanted frames */
2280 if (ix < cxstack_ix) {
2287 oldsave = PL_scopestack[PL_scopestack_ix];
2288 LEAVE_SCOPE(oldsave);
2291 /* push wanted frames */
2293 if (*enterops && enterops[1]) {
2295 for (ix = 1; enterops[ix]; ix++) {
2296 PL_op = enterops[ix];
2297 /* Eventually we may want to stack the needed arguments
2298 * for each op. For now, we punt on the hard ones. */
2299 if (PL_op->op_type == OP_ENTERITER)
2300 DIE(aTHX_ "Can't \"goto\" into the middle of a foreach loop",
2302 (CALLOP->op_ppaddr)(aTHX);
2310 if (!retop) retop = PL_main_start;
2312 PL_restartop = retop;
2313 PL_do_undump = TRUE;
2317 PL_restartop = 0; /* hmm, must be GNU unexec().. */
2318 PL_do_undump = FALSE;
2334 if (anum == 1 && VMSISH_EXIT)
2339 PUSHs(&PL_sv_undef);
2347 NV value = SvNVx(GvSV(cCOP->cop_gv));
2348 register I32 match = I_32(value);
2351 if (((NV)match) > value)
2352 --match; /* was fractional--truncate other way */
2354 match -= cCOP->uop.scop.scop_offset;
2357 else if (match > cCOP->uop.scop.scop_max)
2358 match = cCOP->uop.scop.scop_max;
2359 PL_op = cCOP->uop.scop.scop_next[match];
2369 PL_op = PL_op->op_next; /* can't assume anything */
2372 match = *(SvPVx(GvSV(cCOP->cop_gv), n_a)) & 255;
2373 match -= cCOP->uop.scop.scop_offset;
2376 else if (match > cCOP->uop.scop.scop_max)
2377 match = cCOP->uop.scop.scop_max;
2378 PL_op = cCOP->uop.scop.scop_next[match];
2387 S_save_lines(pTHX_ AV *array, SV *sv)
2389 register char *s = SvPVX(sv);
2390 register char *send = SvPVX(sv) + SvCUR(sv);
2392 register I32 line = 1;
2394 while (s && s < send) {
2395 SV *tmpstr = NEWSV(85,0);
2397 sv_upgrade(tmpstr, SVt_PVMG);
2398 t = strchr(s, '\n');
2404 sv_setpvn(tmpstr, s, t - s);
2405 av_store(array, line++, tmpstr);
2411 S_docatch_body(pTHX_ va_list args)
2418 S_docatch(pTHX_ OP *o)
2425 assert(CATCH_GET == TRUE);
2429 CALLPROTECT(aTHX_ &ret, MEMBER_TO_FPTR(S_docatch_body));
2435 PL_op = PL_restartop;
2450 Perl_sv_compile_2op(pTHX_ SV *sv, OP** startop, char *code, AV** avp)
2451 /* sv Text to convert to OP tree. */
2452 /* startop op_free() this to undo. */
2453 /* code Short string id of the caller. */
2455 dSP; /* Make POPBLOCK work. */
2458 I32 gimme = 0; /* SUSPECT - INITIALZE TO WHAT? NI-S */
2461 OP *oop = PL_op, *rop;
2462 char tmpbuf[TYPE_DIGITS(long) + 12 + 10];
2468 /* switch to eval mode */
2470 if (PL_curcop == &PL_compiling) {
2471 SAVESPTR(PL_compiling.cop_stash);
2472 PL_compiling.cop_stash = PL_curstash;
2474 SAVESPTR(PL_compiling.cop_filegv);
2475 SAVEI16(PL_compiling.cop_line);
2476 sprintf(tmpbuf, "_<(%.10s_eval %lu)", code, (unsigned long)++PL_evalseq);
2477 PL_compiling.cop_filegv = gv_fetchfile(tmpbuf+2);
2478 PL_compiling.cop_line = 1;
2479 /* XXX For C<eval "...">s within BEGIN {} blocks, this ends up
2480 deleting the eval's FILEGV from the stash before gv_check() runs
2481 (i.e. before run-time proper). To work around the coredump that
2482 ensues, we always turn GvMULTI_on for any globals that were
2483 introduced within evals. See force_ident(). GSAR 96-10-12 */
2484 safestr = savepv(tmpbuf);
2485 SAVEDELETE(PL_defstash, safestr, strlen(safestr));
2487 #ifdef OP_IN_REGISTER
2495 PL_op->op_type = OP_ENTEREVAL;
2496 PL_op->op_flags = 0; /* Avoid uninit warning. */
2497 PUSHBLOCK(cx, CXt_EVAL, SP);
2498 PUSHEVAL(cx, 0, PL_compiling.cop_filegv);
2499 rop = doeval(G_SCALAR, startop);
2500 POPBLOCK(cx,PL_curpm);
2503 (*startop)->op_type = OP_NULL;
2504 (*startop)->op_ppaddr = PL_ppaddr[OP_NULL];
2506 *avp = (AV*)SvREFCNT_inc(PL_comppad);
2508 if (PL_curcop == &PL_compiling)
2509 PL_compiling.op_private = PL_hints;
2510 #ifdef OP_IN_REGISTER
2516 /* With USE_THREADS, eval_owner must be held on entry to doeval */
2518 S_doeval(pTHX_ int gimme, OP** startop)
2527 PL_in_eval = EVAL_INEVAL;
2531 /* set up a scratch pad */
2534 SAVESPTR(PL_curpad);
2535 SAVESPTR(PL_comppad);
2536 SAVESPTR(PL_comppad_name);
2537 SAVEI32(PL_comppad_name_fill);
2538 SAVEI32(PL_min_intro_pending);
2539 SAVEI32(PL_max_intro_pending);
2542 for (i = cxstack_ix - 1; i >= 0; i--) {
2543 PERL_CONTEXT *cx = &cxstack[i];
2544 if (CxTYPE(cx) == CXt_EVAL)
2546 else if (CxTYPE(cx) == CXt_SUB) {
2547 caller = cx->blk_sub.cv;
2552 SAVESPTR(PL_compcv);
2553 PL_compcv = (CV*)NEWSV(1104,0);
2554 sv_upgrade((SV *)PL_compcv, SVt_PVCV);
2555 CvEVAL_on(PL_compcv);
2557 CvOWNER(PL_compcv) = 0;
2558 New(666, CvMUTEXP(PL_compcv), 1, perl_mutex);
2559 MUTEX_INIT(CvMUTEXP(PL_compcv));
2560 #endif /* USE_THREADS */
2562 PL_comppad = newAV();
2563 av_push(PL_comppad, Nullsv);
2564 PL_curpad = AvARRAY(PL_comppad);
2565 PL_comppad_name = newAV();
2566 PL_comppad_name_fill = 0;
2567 PL_min_intro_pending = 0;
2570 av_store(PL_comppad_name, 0, newSVpvn("@_", 2));
2571 PL_curpad[0] = (SV*)newAV();
2572 SvPADMY_on(PL_curpad[0]); /* XXX Needed? */
2573 #endif /* USE_THREADS */
2575 comppadlist = newAV();
2576 AvREAL_off(comppadlist);
2577 av_store(comppadlist, 0, (SV*)PL_comppad_name);
2578 av_store(comppadlist, 1, (SV*)PL_comppad);
2579 CvPADLIST(PL_compcv) = comppadlist;
2581 if (!saveop || saveop->op_type != OP_REQUIRE)
2582 CvOUTSIDE(PL_compcv) = (CV*)SvREFCNT_inc(caller);
2584 SAVEFREESV(PL_compcv);
2586 /* make sure we compile in the right package */
2588 newstash = PL_curcop->cop_stash;
2589 if (PL_curstash != newstash) {
2590 SAVESPTR(PL_curstash);
2591 PL_curstash = newstash;
2593 SAVESPTR(PL_beginav);
2594 PL_beginav = newAV();
2595 SAVEFREESV(PL_beginav);
2597 /* try to compile it */
2599 PL_eval_root = Nullop;
2601 PL_curcop = &PL_compiling;
2602 PL_curcop->cop_arybase = 0;
2603 SvREFCNT_dec(PL_rs);
2604 PL_rs = newSVpvn("\n", 1);
2605 if (saveop && saveop->op_flags & OPf_SPECIAL)
2606 PL_in_eval |= EVAL_KEEPERR;
2609 if (yyparse() || PL_error_count || !PL_eval_root) {
2613 I32 optype = 0; /* Might be reset by POPEVAL. */
2618 op_free(PL_eval_root);
2619 PL_eval_root = Nullop;
2621 SP = PL_stack_base + POPMARK; /* pop original mark */
2623 POPBLOCK(cx,PL_curpm);
2629 if (optype == OP_REQUIRE) {
2630 char* msg = SvPVx(ERRSV, n_a);
2631 DIE(aTHX_ "%s", *msg ? msg : "Compilation failed in require");
2632 } else if (startop) {
2633 char* msg = SvPVx(ERRSV, n_a);
2635 POPBLOCK(cx,PL_curpm);
2637 Perl_croak(aTHX_ "%sCompilation failed in regexp", (*msg ? msg : "Unknown error\n"));
2639 SvREFCNT_dec(PL_rs);
2640 PL_rs = SvREFCNT_inc(PL_nrs);
2642 MUTEX_LOCK(&PL_eval_mutex);
2644 COND_SIGNAL(&PL_eval_cond);
2645 MUTEX_UNLOCK(&PL_eval_mutex);
2646 #endif /* USE_THREADS */
2649 SvREFCNT_dec(PL_rs);
2650 PL_rs = SvREFCNT_inc(PL_nrs);
2651 PL_compiling.cop_line = 0;
2653 *startop = PL_eval_root;
2654 SvREFCNT_dec(CvOUTSIDE(PL_compcv));
2655 CvOUTSIDE(PL_compcv) = Nullcv;
2657 SAVEFREEOP(PL_eval_root);
2659 scalarvoid(PL_eval_root);
2660 else if (gimme & G_ARRAY)
2663 scalar(PL_eval_root);
2665 DEBUG_x(dump_eval());
2667 /* Register with debugger: */
2668 if (PERLDB_INTER && saveop->op_type == OP_REQUIRE) {
2669 CV *cv = get_cv("DB::postponed", FALSE);
2673 XPUSHs((SV*)PL_compiling.cop_filegv);
2675 call_sv((SV*)cv, G_DISCARD);
2679 /* compiled okay, so do it */
2681 CvDEPTH(PL_compcv) = 1;
2682 SP = PL_stack_base + POPMARK; /* pop original mark */
2683 PL_op = saveop; /* The caller may need it. */
2685 MUTEX_LOCK(&PL_eval_mutex);
2687 COND_SIGNAL(&PL_eval_cond);
2688 MUTEX_UNLOCK(&PL_eval_mutex);
2689 #endif /* USE_THREADS */
2691 RETURNOP(PL_eval_start);
2695 S_doopen_pmc(pTHX_ const char *name, const char *mode)
2697 STRLEN namelen = strlen(name);
2700 if (namelen > 3 && strEQ(name + namelen - 3, ".pm")) {
2701 SV *pmcsv = Perl_newSVpvf(aTHX_ "%s%c", name, 'c');
2702 char *pmc = SvPV_nolen(pmcsv);
2705 if (PerlLIO_stat(pmc, &pmcstat) < 0) {
2706 fp = PerlIO_open(name, mode);
2709 if (PerlLIO_stat(name, &pmstat) < 0 ||
2710 pmstat.st_mtime < pmcstat.st_mtime)
2712 fp = PerlIO_open(pmc, mode);
2715 fp = PerlIO_open(name, mode);
2718 SvREFCNT_dec(pmcsv);
2721 fp = PerlIO_open(name, mode);
2729 register PERL_CONTEXT *cx;
2734 SV *namesv = Nullsv;
2736 I32 gimme = G_SCALAR;
2737 PerlIO *tryrsfp = 0;
2741 if (SvNIOKp(sv) && !SvPOKp(sv)) {
2742 if (Atof(PL_patchlevel) + 0.00000999 < SvNV(sv))
2743 DIE(aTHX_ "Perl %s required--this is only version %s, stopped",
2744 SvPV(sv,n_a),PL_patchlevel);
2747 name = SvPV(sv, len);
2748 if (!(name && len > 0 && *name))
2749 DIE(aTHX_ "Null filename used");
2750 TAINT_PROPER("require");
2751 if (PL_op->op_type == OP_REQUIRE &&
2752 (svp = hv_fetch(GvHVn(PL_incgv), name, len, 0)) &&
2753 *svp != &PL_sv_undef)
2756 /* prepare to compile file */
2761 (name[1] == '.' && name[2] == '/')))
2763 || (name[0] && name[1] == ':')
2766 || (name[0] == '\\' && name[1] == '\\') /* UNC path */
2769 || (strchr(name,':') || ((*name == '[' || *name == '<') &&
2770 (isALNUM(name[1]) || strchr("$-_]>",name[1]))))
2775 tryrsfp = doopen_pmc(name,PERL_SCRIPT_MODE);
2778 AV *ar = GvAVn(PL_incgv);
2782 if ((unixname = tounixspec(name, Nullch)) != Nullch)
2785 namesv = NEWSV(806, 0);
2786 for (i = 0; i <= AvFILL(ar); i++) {
2787 char *dir = SvPVx(*av_fetch(ar, i, TRUE), n_a);
2790 if ((unixdir = tounixpath(dir, Nullch)) == Nullch)
2792 sv_setpv(namesv, unixdir);
2793 sv_catpv(namesv, unixname);
2795 Perl_sv_setpvf(aTHX_ namesv, "%s/%s", dir, name);
2797 TAINT_PROPER("require");
2798 tryname = SvPVX(namesv);
2799 tryrsfp = doopen_pmc(tryname, PERL_SCRIPT_MODE);
2801 if (tryname[0] == '.' && tryname[1] == '/')
2808 SAVESPTR(PL_compiling.cop_filegv);
2809 PL_compiling.cop_filegv = gv_fetchfile(tryrsfp ? tryname : name);
2810 SvREFCNT_dec(namesv);
2812 if (PL_op->op_type == OP_REQUIRE) {
2813 char *msgstr = name;
2814 if (namesv) { /* did we lookup @INC? */
2815 SV *msg = sv_2mortal(newSVpv(msgstr,0));
2816 SV *dirmsgsv = NEWSV(0, 0);
2817 AV *ar = GvAVn(PL_incgv);
2819 sv_catpvn(msg, " in @INC", 8);
2820 if (instr(SvPVX(msg), ".h "))
2821 sv_catpv(msg, " (change .h to .ph maybe?)");
2822 if (instr(SvPVX(msg), ".ph "))
2823 sv_catpv(msg, " (did you run h2ph?)");
2824 sv_catpv(msg, " (@INC contains:");
2825 for (i = 0; i <= AvFILL(ar); i++) {
2826 char *dir = SvPVx(*av_fetch(ar, i, TRUE), n_a);
2827 Perl_sv_setpvf(aTHX_ dirmsgsv, " %s", dir);
2828 sv_catsv(msg, dirmsgsv);
2830 sv_catpvn(msg, ")", 1);
2831 SvREFCNT_dec(dirmsgsv);
2832 msgstr = SvPV_nolen(msg);
2834 DIE(aTHX_ "Can't locate %s", msgstr);
2840 SETERRNO(0, SS$_NORMAL);
2842 /* Assume success here to prevent recursive requirement. */
2843 (void)hv_store(GvHVn(PL_incgv), name, strlen(name),
2844 newSVsv(GvSV(PL_compiling.cop_filegv)), 0 );
2848 lex_start(sv_2mortal(newSVpvn("",0)));
2849 SAVEGENERICSV(PL_rsfp_filters);
2850 PL_rsfp_filters = Nullav;
2853 name = savepv(name);
2857 SAVEPPTR(PL_compiling.cop_warnings);
2858 if (PL_dowarn & G_WARN_ALL_ON)
2859 PL_compiling.cop_warnings = WARN_ALL ;
2860 else if (PL_dowarn & G_WARN_ALL_OFF)
2861 PL_compiling.cop_warnings = WARN_NONE ;
2863 PL_compiling.cop_warnings = WARN_STD ;
2865 /* switch to eval mode */
2867 push_return(PL_op->op_next);
2868 PUSHBLOCK(cx, CXt_EVAL, SP);
2869 PUSHEVAL(cx, name, PL_compiling.cop_filegv);
2871 SAVEI16(PL_compiling.cop_line);
2872 PL_compiling.cop_line = 0;
2876 MUTEX_LOCK(&PL_eval_mutex);
2877 if (PL_eval_owner && PL_eval_owner != thr)
2878 while (PL_eval_owner)
2879 COND_WAIT(&PL_eval_cond, &PL_eval_mutex);
2880 PL_eval_owner = thr;
2881 MUTEX_UNLOCK(&PL_eval_mutex);
2882 #endif /* USE_THREADS */
2883 return DOCATCH(doeval(G_SCALAR, NULL));
2888 return pp_require();
2894 register PERL_CONTEXT *cx;
2896 I32 gimme = GIMME_V, was = PL_sub_generation;
2897 char tmpbuf[TYPE_DIGITS(long) + 12];
2902 if (!SvPV(sv,len) || !len)
2904 TAINT_PROPER("eval");
2910 /* switch to eval mode */
2912 SAVESPTR(PL_compiling.cop_filegv);
2913 sprintf(tmpbuf, "_<(eval %lu)", (unsigned long)++PL_evalseq);
2914 PL_compiling.cop_filegv = gv_fetchfile(tmpbuf+2);
2915 PL_compiling.cop_line = 1;
2916 /* XXX For C<eval "...">s within BEGIN {} blocks, this ends up
2917 deleting the eval's FILEGV from the stash before gv_check() runs
2918 (i.e. before run-time proper). To work around the coredump that
2919 ensues, we always turn GvMULTI_on for any globals that were
2920 introduced within evals. See force_ident(). GSAR 96-10-12 */
2921 safestr = savepv(tmpbuf);
2922 SAVEDELETE(PL_defstash, safestr, strlen(safestr));
2924 PL_hints = PL_op->op_targ;
2925 SAVEPPTR(PL_compiling.cop_warnings);
2926 if (!specialWARN(PL_compiling.cop_warnings)) {
2927 PL_compiling.cop_warnings = newSVsv(PL_compiling.cop_warnings) ;
2928 SAVEFREESV(PL_compiling.cop_warnings) ;
2931 push_return(PL_op->op_next);
2932 PUSHBLOCK(cx, (CXt_EVAL|CXp_REAL), SP);
2933 PUSHEVAL(cx, 0, PL_compiling.cop_filegv);
2935 /* prepare to compile string */
2937 if (PERLDB_LINE && PL_curstash != PL_debstash)
2938 save_lines(GvAV(PL_compiling.cop_filegv), PL_linestr);
2941 MUTEX_LOCK(&PL_eval_mutex);
2942 if (PL_eval_owner && PL_eval_owner != thr)
2943 while (PL_eval_owner)
2944 COND_WAIT(&PL_eval_cond, &PL_eval_mutex);
2945 PL_eval_owner = thr;
2946 MUTEX_UNLOCK(&PL_eval_mutex);
2947 #endif /* USE_THREADS */
2948 ret = doeval(gimme, NULL);
2949 if (PERLDB_INTER && was != PL_sub_generation /* Some subs defined here. */
2950 && ret != PL_op->op_next) { /* Successive compilation. */
2951 strcpy(safestr, "_<(eval )"); /* Anything fake and short. */
2953 return DOCATCH(ret);
2963 register PERL_CONTEXT *cx;
2965 U8 save_flags = PL_op -> op_flags;
2970 retop = pop_return();
2973 if (gimme == G_VOID)
2975 else if (gimme == G_SCALAR) {
2978 if (SvFLAGS(TOPs) & SVs_TEMP)
2981 *MARK = sv_mortalcopy(TOPs);
2985 *MARK = &PL_sv_undef;
2989 /* in case LEAVE wipes old return values */
2990 for (mark = newsp + 1; mark <= SP; mark++) {
2991 if (!(SvFLAGS(*mark) & SVs_TEMP)) {
2992 *mark = sv_mortalcopy(*mark);
2993 TAINT_NOT; /* Each item is independent */
2997 PL_curpm = newpm; /* Don't pop $1 et al till now */
2999 if (AvFILLp(PL_comppad_name) >= 0)
3003 assert(CvDEPTH(PL_compcv) == 1);
3005 CvDEPTH(PL_compcv) = 0;
3008 if (optype == OP_REQUIRE &&
3009 !(gimme == G_SCALAR ? SvTRUE(*SP) : SP > newsp))
3011 /* Unassume the success we assumed earlier. */
3012 char *name = cx->blk_eval.old_name;
3013 (void)hv_delete(GvHVn(PL_incgv), name, strlen(name), G_DISCARD);
3014 retop = Perl_die(aTHX_ "%s did not return a true value", name);
3015 /* die_where() did LEAVE, or we won't be here */
3019 if (!(save_flags & OPf_SPECIAL))
3029 register PERL_CONTEXT *cx;
3030 I32 gimme = GIMME_V;
3035 push_return(cLOGOP->op_other->op_next);
3036 PUSHBLOCK(cx, CXt_EVAL, SP);
3038 PL_eval_root = PL_op; /* Only needed so that goto works right. */
3040 PL_in_eval = EVAL_INEVAL;
3043 return DOCATCH(PL_op->op_next);
3053 register PERL_CONTEXT *cx;
3061 if (gimme == G_VOID)
3063 else if (gimme == G_SCALAR) {
3066 if (SvFLAGS(TOPs) & (SVs_PADTMP|SVs_TEMP))
3069 *MARK = sv_mortalcopy(TOPs);
3073 *MARK = &PL_sv_undef;
3078 /* in case LEAVE wipes old return values */
3079 for (mark = newsp + 1; mark <= SP; mark++) {
3080 if (!(SvFLAGS(*mark) & (SVs_PADTMP|SVs_TEMP))) {
3081 *mark = sv_mortalcopy(*mark);
3082 TAINT_NOT; /* Each item is independent */
3086 PL_curpm = newpm; /* Don't pop $1 et al till now */
3094 S_doparseform(pTHX_ SV *sv)
3097 register char *s = SvPV_force(sv, len);
3098 register char *send = s + len;
3099 register char *base;
3100 register I32 skipspaces = 0;
3103 bool postspace = FALSE;
3111 Perl_croak(aTHX_ "Null picture in formline");
3113 New(804, fops, (send - s)*3+10, U16); /* Almost certainly too long... */
3118 *fpc++ = FF_LINEMARK;
3119 noblank = repeat = FALSE;
3137 case ' ': case '\t':
3148 *fpc++ = FF_LITERAL;
3156 *fpc++ = skipspaces;
3160 *fpc++ = FF_NEWLINE;
3164 arg = fpc - linepc + 1;
3171 *fpc++ = FF_LINEMARK;
3172 noblank = repeat = FALSE;
3181 ischop = s[-1] == '^';
3187 arg = (s - base) - 1;
3189 *fpc++ = FF_LITERAL;
3198 *fpc++ = FF_LINEGLOB;
3200 else if (*s == '#' || (*s == '.' && s[1] == '#')) {
3201 arg = ischop ? 512 : 0;
3211 arg |= 256 + (s - f);
3213 *fpc++ = s - base; /* fieldsize for FETCH */
3214 *fpc++ = FF_DECIMAL;
3219 bool ismore = FALSE;
3222 while (*++s == '>') ;
3223 prespace = FF_SPACE;
3225 else if (*s == '|') {
3226 while (*++s == '|') ;
3227 prespace = FF_HALFSPACE;
3232 while (*++s == '<') ;
3235 if (*s == '.' && s[1] == '.' && s[2] == '.') {
3239 *fpc++ = s - base; /* fieldsize for FETCH */
3241 *fpc++ = ischop ? FF_CHECKCHOP : FF_CHECKNL;
3259 { /* need to jump to the next word */
3261 z = WORD_ALIGN - SvCUR(sv) % WORD_ALIGN;
3262 SvGROW(sv, SvCUR(sv) + z + arg * sizeof(U16) + 4);
3263 s = SvPVX(sv) + SvCUR(sv) + z;
3265 Copy(fops, s, arg, U16);
3267 sv_magic(sv, Nullsv, 'f', Nullch, 0);
3272 * The rest of this file was derived from source code contributed
3275 * NOTE: this code was derived from Tom Horsley's qsort replacement
3276 * and should not be confused with the original code.
3279 /* Copyright (C) Tom Horsley, 1997. All rights reserved.
3281 Permission granted to distribute under the same terms as perl which are
3284 This program is free software; you can redistribute it and/or modify
3285 it under the terms of either:
3287 a) the GNU General Public License as published by the Free
3288 Software Foundation; either version 1, or (at your option) any
3291 b) the "Artistic License" which comes with this Kit.
3293 Details on the perl license can be found in the perl source code which
3294 may be located via the www.perl.com web page.
3296 This is the most wonderfulest possible qsort I can come up with (and
3297 still be mostly portable) My (limited) tests indicate it consistently
3298 does about 20% fewer calls to compare than does the qsort in the Visual
3299 C++ library, other vendors may vary.
3301 Some of the ideas in here can be found in "Algorithms" by Sedgewick,
3302 others I invented myself (or more likely re-invented since they seemed
3303 pretty obvious once I watched the algorithm operate for a while).
3305 Most of this code was written while watching the Marlins sweep the Giants
3306 in the 1997 National League Playoffs - no Braves fans allowed to use this
3307 code (just kidding :-).
3309 I realize that if I wanted to be true to the perl tradition, the only
3310 comment in this file would be something like:
3312 ...they shuffled back towards the rear of the line. 'No, not at the
3313 rear!' the slave-driver shouted. 'Three files up. And stay there...
3315 However, I really needed to violate that tradition just so I could keep
3316 track of what happens myself, not to mention some poor fool trying to
3317 understand this years from now :-).
3320 /* ********************************************************** Configuration */
3322 #ifndef QSORT_ORDER_GUESS
3323 #define QSORT_ORDER_GUESS 2 /* Select doubling version of the netBSD trick */
3326 /* QSORT_MAX_STACK is the largest number of partitions that can be stacked up for
3327 future processing - a good max upper bound is log base 2 of memory size
3328 (32 on 32 bit machines, 64 on 64 bit machines, etc). In reality can
3329 safely be smaller than that since the program is taking up some space and
3330 most operating systems only let you grab some subset of contiguous
3331 memory (not to mention that you are normally sorting data larger than
3332 1 byte element size :-).
3334 #ifndef QSORT_MAX_STACK
3335 #define QSORT_MAX_STACK 32
3338 /* QSORT_BREAK_EVEN is the size of the largest partition we should insertion sort.
3339 Anything bigger and we use qsort. If you make this too small, the qsort
3340 will probably break (or become less efficient), because it doesn't expect
3341 the middle element of a partition to be the same as the right or left -
3342 you have been warned).
3344 #ifndef QSORT_BREAK_EVEN
3345 #define QSORT_BREAK_EVEN 6
3348 /* ************************************************************* Data Types */
3350 /* hold left and right index values of a partition waiting to be sorted (the
3351 partition includes both left and right - right is NOT one past the end or
3352 anything like that).
3354 struct partition_stack_entry {
3357 #ifdef QSORT_ORDER_GUESS
3358 int qsort_break_even;
3362 /* ******************************************************* Shorthand Macros */
3364 /* Note that these macros will be used from inside the qsort function where
3365 we happen to know that the variable 'elt_size' contains the size of an
3366 array element and the variable 'temp' points to enough space to hold a
3367 temp element and the variable 'array' points to the array being sorted
3368 and 'compare' is the pointer to the compare routine.
3370 Also note that there are very many highly architecture specific ways
3371 these might be sped up, but this is simply the most generally portable
3372 code I could think of.
3375 /* Return < 0 == 0 or > 0 as the value of elt1 is < elt2, == elt2, > elt2
3377 #define qsort_cmp(elt1, elt2) \
3378 ((*compare)(aTHXo_ array[elt1], array[elt2]))
3380 #ifdef QSORT_ORDER_GUESS
3381 #define QSORT_NOTICE_SWAP swapped++;
3383 #define QSORT_NOTICE_SWAP
3386 /* swaps contents of array elements elt1, elt2.
3388 #define qsort_swap(elt1, elt2) \
3391 temp = array[elt1]; \
3392 array[elt1] = array[elt2]; \
3393 array[elt2] = temp; \
3396 /* rotate contents of elt1, elt2, elt3 such that elt1 gets elt2, elt2 gets
3397 elt3 and elt3 gets elt1.
3399 #define qsort_rotate(elt1, elt2, elt3) \
3402 temp = array[elt1]; \
3403 array[elt1] = array[elt2]; \
3404 array[elt2] = array[elt3]; \
3405 array[elt3] = temp; \
3408 /* ************************************************************ Debug stuff */
3415 return; /* good place to set a breakpoint */
3418 #define qsort_assert(t) (void)( (t) || (break_here(), 0) )
3421 doqsort_all_asserts(
3425 int (*compare)(const void * elt1, const void * elt2),
3426 int pc_left, int pc_right, int u_left, int u_right)
3430 qsort_assert(pc_left <= pc_right);
3431 qsort_assert(u_right < pc_left);
3432 qsort_assert(pc_right < u_left);
3433 for (i = u_right + 1; i < pc_left; ++i) {
3434 qsort_assert(qsort_cmp(i, pc_left) < 0);
3436 for (i = pc_left; i < pc_right; ++i) {
3437 qsort_assert(qsort_cmp(i, pc_right) == 0);
3439 for (i = pc_right + 1; i < u_left; ++i) {
3440 qsort_assert(qsort_cmp(pc_right, i) < 0);
3444 #define qsort_all_asserts(PC_LEFT, PC_RIGHT, U_LEFT, U_RIGHT) \
3445 doqsort_all_asserts(array, num_elts, elt_size, compare, \
3446 PC_LEFT, PC_RIGHT, U_LEFT, U_RIGHT)
3450 #define qsort_assert(t) ((void)0)
3452 #define qsort_all_asserts(PC_LEFT, PC_RIGHT, U_LEFT, U_RIGHT) ((void)0)
3456 /* ****************************************************************** qsort */
3459 S_qsortsv(pTHX_ SV ** array, size_t num_elts, SVCOMPARE_t compare)
3463 struct partition_stack_entry partition_stack[QSORT_MAX_STACK];
3464 int next_stack_entry = 0;
3468 #ifdef QSORT_ORDER_GUESS
3469 int qsort_break_even;
3473 /* Make sure we actually have work to do.
3475 if (num_elts <= 1) {
3479 /* Setup the initial partition definition and fall into the sorting loop
3482 part_right = (int)(num_elts - 1);
3483 #ifdef QSORT_ORDER_GUESS
3484 qsort_break_even = QSORT_BREAK_EVEN;
3486 #define qsort_break_even QSORT_BREAK_EVEN
3489 if ((part_right - part_left) >= qsort_break_even) {
3490 /* OK, this is gonna get hairy, so lets try to document all the
3491 concepts and abbreviations and variables and what they keep
3494 pc: pivot chunk - the set of array elements we accumulate in the
3495 middle of the partition, all equal in value to the original
3496 pivot element selected. The pc is defined by:
3498 pc_left - the leftmost array index of the pc
3499 pc_right - the rightmost array index of the pc
3501 we start with pc_left == pc_right and only one element
3502 in the pivot chunk (but it can grow during the scan).
3504 u: uncompared elements - the set of elements in the partition
3505 we have not yet compared to the pivot value. There are two
3506 uncompared sets during the scan - one to the left of the pc
3507 and one to the right.
3509 u_right - the rightmost index of the left side's uncompared set
3510 u_left - the leftmost index of the right side's uncompared set
3512 The leftmost index of the left sides's uncompared set
3513 doesn't need its own variable because it is always defined
3514 by the leftmost edge of the whole partition (part_left). The
3515 same goes for the rightmost edge of the right partition
3518 We know there are no uncompared elements on the left once we
3519 get u_right < part_left and no uncompared elements on the
3520 right once u_left > part_right. When both these conditions
3521 are met, we have completed the scan of the partition.
3523 Any elements which are between the pivot chunk and the
3524 uncompared elements should be less than the pivot value on
3525 the left side and greater than the pivot value on the right
3526 side (in fact, the goal of the whole algorithm is to arrange
3527 for that to be true and make the groups of less-than and
3528 greater-then elements into new partitions to sort again).
3530 As you marvel at the complexity of the code and wonder why it
3531 has to be so confusing. Consider some of the things this level
3532 of confusion brings:
3534 Once I do a compare, I squeeze every ounce of juice out of it. I
3535 never do compare calls I don't have to do, and I certainly never
3538 I also never swap any elements unless I can prove there is a
3539 good reason. Many sort algorithms will swap a known value with
3540 an uncompared value just to get things in the right place (or
3541 avoid complexity :-), but that uncompared value, once it gets
3542 compared, may then have to be swapped again. A lot of the
3543 complexity of this code is due to the fact that it never swaps
3544 anything except compared values, and it only swaps them when the
3545 compare shows they are out of position.
3547 int pc_left, pc_right;
3548 int u_right, u_left;
3552 pc_left = ((part_left + part_right) / 2);
3554 u_right = pc_left - 1;
3555 u_left = pc_right + 1;
3557 /* Qsort works best when the pivot value is also the median value
3558 in the partition (unfortunately you can't find the median value
3559 without first sorting :-), so to give the algorithm a helping
3560 hand, we pick 3 elements and sort them and use the median value
3561 of that tiny set as the pivot value.
3563 Some versions of qsort like to use the left middle and right as
3564 the 3 elements to sort so they can insure the ends of the
3565 partition will contain values which will stop the scan in the
3566 compare loop, but when you have to call an arbitrarily complex
3567 routine to do a compare, its really better to just keep track of
3568 array index values to know when you hit the edge of the
3569 partition and avoid the extra compare. An even better reason to
3570 avoid using a compare call is the fact that you can drop off the
3571 edge of the array if someone foolishly provides you with an
3572 unstable compare function that doesn't always provide consistent
3575 So, since it is simpler for us to compare the three adjacent
3576 elements in the middle of the partition, those are the ones we
3577 pick here (conveniently pointed at by u_right, pc_left, and
3578 u_left). The values of the left, center, and right elements
3579 are refered to as l c and r in the following comments.
3582 #ifdef QSORT_ORDER_GUESS
3585 s = qsort_cmp(u_right, pc_left);
3588 s = qsort_cmp(pc_left, u_left);
3589 /* if l < c, c < r - already in order - nothing to do */
3591 /* l < c, c == r - already in order, pc grows */
3593 qsort_all_asserts(pc_left, pc_right, u_left + 1, u_right - 1);
3595 /* l < c, c > r - need to know more */
3596 s = qsort_cmp(u_right, u_left);
3598 /* l < c, c > r, l < r - swap c & r to get ordered */
3599 qsort_swap(pc_left, u_left);
3600 qsort_all_asserts(pc_left, pc_right, u_left + 1, u_right - 1);
3601 } else if (s == 0) {
3602 /* l < c, c > r, l == r - swap c&r, grow pc */
3603 qsort_swap(pc_left, u_left);
3605 qsort_all_asserts(pc_left, pc_right, u_left + 1, u_right - 1);
3607 /* l < c, c > r, l > r - make lcr into rlc to get ordered */
3608 qsort_rotate(pc_left, u_right, u_left);
3609 qsort_all_asserts(pc_left, pc_right, u_left + 1, u_right - 1);
3612 } else if (s == 0) {
3614 s = qsort_cmp(pc_left, u_left);
3616 /* l == c, c < r - already in order, grow pc */
3618 qsort_all_asserts(pc_left, pc_right, u_left + 1, u_right - 1);
3619 } else if (s == 0) {
3620 /* l == c, c == r - already in order, grow pc both ways */
3623 qsort_all_asserts(pc_left, pc_right, u_left + 1, u_right - 1);
3625 /* l == c, c > r - swap l & r, grow pc */
3626 qsort_swap(u_right, u_left);
3628 qsort_all_asserts(pc_left, pc_right, u_left + 1, u_right - 1);
3632 s = qsort_cmp(pc_left, u_left);
3634 /* l > c, c < r - need to know more */
3635 s = qsort_cmp(u_right, u_left);
3637 /* l > c, c < r, l < r - swap l & c to get ordered */
3638 qsort_swap(u_right, pc_left);
3639 qsort_all_asserts(pc_left, pc_right, u_left + 1, u_right - 1);
3640 } else if (s == 0) {
3641 /* l > c, c < r, l == r - swap l & c, grow pc */
3642 qsort_swap(u_right, pc_left);
3644 qsort_all_asserts(pc_left, pc_right, u_left + 1, u_right - 1);
3646 /* l > c, c < r, l > r - rotate lcr into crl to order */
3647 qsort_rotate(u_right, pc_left, u_left);
3648 qsort_all_asserts(pc_left, pc_right, u_left + 1, u_right - 1);
3650 } else if (s == 0) {
3651 /* l > c, c == r - swap ends, grow pc */
3652 qsort_swap(u_right, u_left);
3654 qsort_all_asserts(pc_left, pc_right, u_left + 1, u_right - 1);
3656 /* l > c, c > r - swap ends to get in order */
3657 qsort_swap(u_right, u_left);
3658 qsort_all_asserts(pc_left, pc_right, u_left + 1, u_right - 1);
3661 /* We now know the 3 middle elements have been compared and
3662 arranged in the desired order, so we can shrink the uncompared
3667 qsort_all_asserts(pc_left, pc_right, u_left, u_right);
3669 /* The above massive nested if was the simple part :-). We now have
3670 the middle 3 elements ordered and we need to scan through the
3671 uncompared sets on either side, swapping elements that are on
3672 the wrong side or simply shuffling equal elements around to get
3673 all equal elements into the pivot chunk.
3677 int still_work_on_left;
3678 int still_work_on_right;
3680 /* Scan the uncompared values on the left. If I find a value
3681 equal to the pivot value, move it over so it is adjacent to
3682 the pivot chunk and expand the pivot chunk. If I find a value
3683 less than the pivot value, then just leave it - its already
3684 on the correct side of the partition. If I find a greater
3685 value, then stop the scan.
3687 while (still_work_on_left = (u_right >= part_left)) {
3688 s = qsort_cmp(u_right, pc_left);
3691 } else if (s == 0) {
3693 if (pc_left != u_right) {
3694 qsort_swap(u_right, pc_left);
3700 qsort_assert(u_right < pc_left);
3701 qsort_assert(pc_left <= pc_right);
3702 qsort_assert(qsort_cmp(u_right + 1, pc_left) <= 0);
3703 qsort_assert(qsort_cmp(pc_left, pc_right) == 0);
3706 /* Do a mirror image scan of uncompared values on the right
3708 while (still_work_on_right = (u_left <= part_right)) {
3709 s = qsort_cmp(pc_right, u_left);
3712 } else if (s == 0) {
3714 if (pc_right != u_left) {
3715 qsort_swap(pc_right, u_left);
3721 qsort_assert(u_left > pc_right);
3722 qsort_assert(pc_left <= pc_right);
3723 qsort_assert(qsort_cmp(pc_right, u_left - 1) <= 0);
3724 qsort_assert(qsort_cmp(pc_left, pc_right) == 0);
3727 if (still_work_on_left) {
3728 /* I know I have a value on the left side which needs to be
3729 on the right side, but I need to know more to decide
3730 exactly the best thing to do with it.
3732 if (still_work_on_right) {
3733 /* I know I have values on both side which are out of
3734 position. This is a big win because I kill two birds
3735 with one swap (so to speak). I can advance the
3736 uncompared pointers on both sides after swapping both
3737 of them into the right place.
3739 qsort_swap(u_right, u_left);
3742 qsort_all_asserts(pc_left, pc_right, u_left, u_right);
3744 /* I have an out of position value on the left, but the
3745 right is fully scanned, so I "slide" the pivot chunk
3746 and any less-than values left one to make room for the
3747 greater value over on the right. If the out of position
3748 value is immediately adjacent to the pivot chunk (there
3749 are no less-than values), I can do that with a swap,
3750 otherwise, I have to rotate one of the less than values
3751 into the former position of the out of position value
3752 and the right end of the pivot chunk into the left end
3756 if (pc_left == u_right) {
3757 qsort_swap(u_right, pc_right);
3758 qsort_all_asserts(pc_left, pc_right-1, u_left, u_right-1);
3760 qsort_rotate(u_right, pc_left, pc_right);
3761 qsort_all_asserts(pc_left, pc_right-1, u_left, u_right-1);
3766 } else if (still_work_on_right) {
3767 /* Mirror image of complex case above: I have an out of
3768 position value on the right, but the left is fully
3769 scanned, so I need to shuffle things around to make room
3770 for the right value on the left.
3773 if (pc_right == u_left) {
3774 qsort_swap(u_left, pc_left);
3775 qsort_all_asserts(pc_left+1, pc_right, u_left+1, u_right);
3777 qsort_rotate(pc_right, pc_left, u_left);
3778 qsort_all_asserts(pc_left+1, pc_right, u_left+1, u_right);
3783 /* No more scanning required on either side of partition,
3784 break out of loop and figure out next set of partitions
3790 /* The elements in the pivot chunk are now in the right place. They
3791 will never move or be compared again. All I have to do is decide
3792 what to do with the stuff to the left and right of the pivot
3795 Notes on the QSORT_ORDER_GUESS ifdef code:
3797 1. If I just built these partitions without swapping any (or
3798 very many) elements, there is a chance that the elements are
3799 already ordered properly (being properly ordered will
3800 certainly result in no swapping, but the converse can't be
3803 2. A (properly written) insertion sort will run faster on
3804 already ordered data than qsort will.
3806 3. Perhaps there is some way to make a good guess about
3807 switching to an insertion sort earlier than partition size 6
3808 (for instance - we could save the partition size on the stack
3809 and increase the size each time we find we didn't swap, thus
3810 switching to insertion sort earlier for partitions with a
3811 history of not swapping).
3813 4. Naturally, if I just switch right away, it will make
3814 artificial benchmarks with pure ascending (or descending)
3815 data look really good, but is that a good reason in general?
3819 #ifdef QSORT_ORDER_GUESS
3821 #if QSORT_ORDER_GUESS == 1
3822 qsort_break_even = (part_right - part_left) + 1;
3824 #if QSORT_ORDER_GUESS == 2
3825 qsort_break_even *= 2;
3827 #if QSORT_ORDER_GUESS == 3
3828 int prev_break = qsort_break_even;
3829 qsort_break_even *= qsort_break_even;
3830 if (qsort_break_even < prev_break) {
3831 qsort_break_even = (part_right - part_left) + 1;
3835 qsort_break_even = QSORT_BREAK_EVEN;
3839 if (part_left < pc_left) {
3840 /* There are elements on the left which need more processing.
3841 Check the right as well before deciding what to do.
3843 if (pc_right < part_right) {
3844 /* We have two partitions to be sorted. Stack the biggest one
3845 and process the smallest one on the next iteration. This
3846 minimizes the stack height by insuring that any additional
3847 stack entries must come from the smallest partition which
3848 (because it is smallest) will have the fewest
3849 opportunities to generate additional stack entries.
3851 if ((part_right - pc_right) > (pc_left - part_left)) {
3852 /* stack the right partition, process the left */
3853 partition_stack[next_stack_entry].left = pc_right + 1;
3854 partition_stack[next_stack_entry].right = part_right;
3855 #ifdef QSORT_ORDER_GUESS
3856 partition_stack[next_stack_entry].qsort_break_even = qsort_break_even;
3858 part_right = pc_left - 1;
3860 /* stack the left partition, process the right */
3861 partition_stack[next_stack_entry].left = part_left;
3862 partition_stack[next_stack_entry].right = pc_left - 1;
3863 #ifdef QSORT_ORDER_GUESS
3864 partition_stack[next_stack_entry].qsort_break_even = qsort_break_even;
3866 part_left = pc_right + 1;
3868 qsort_assert(next_stack_entry < QSORT_MAX_STACK);
3871 /* The elements on the left are the only remaining elements
3872 that need sorting, arrange for them to be processed as the
3875 part_right = pc_left - 1;
3877 } else if (pc_right < part_right) {
3878 /* There is only one chunk on the right to be sorted, make it
3879 the new partition and loop back around.
3881 part_left = pc_right + 1;
3883 /* This whole partition wound up in the pivot chunk, so
3884 we need to get a new partition off the stack.
3886 if (next_stack_entry == 0) {
3887 /* the stack is empty - we are done */
3891 part_left = partition_stack[next_stack_entry].left;
3892 part_right = partition_stack[next_stack_entry].right;
3893 #ifdef QSORT_ORDER_GUESS
3894 qsort_break_even = partition_stack[next_stack_entry].qsort_break_even;
3898 /* This partition is too small to fool with qsort complexity, just
3899 do an ordinary insertion sort to minimize overhead.
3902 /* Assume 1st element is in right place already, and start checking
3903 at 2nd element to see where it should be inserted.
3905 for (i = part_left + 1; i <= part_right; ++i) {
3907 /* Scan (backwards - just in case 'i' is already in right place)
3908 through the elements already sorted to see if the ith element
3909 belongs ahead of one of them.
3911 for (j = i - 1; j >= part_left; --j) {
3912 if (qsort_cmp(i, j) >= 0) {
3913 /* i belongs right after j
3920 /* Looks like we really need to move some things
3924 for (k = i - 1; k >= j; --k)
3925 array[k + 1] = array[k];
3930 /* That partition is now sorted, grab the next one, or get out
3931 of the loop if there aren't any more.
3934 if (next_stack_entry == 0) {
3935 /* the stack is empty - we are done */
3939 part_left = partition_stack[next_stack_entry].left;
3940 part_right = partition_stack[next_stack_entry].right;
3941 #ifdef QSORT_ORDER_GUESS
3942 qsort_break_even = partition_stack[next_stack_entry].qsort_break_even;
3947 /* Believe it or not, the array is sorted at this point! */
3960 sortcv(pTHXo_ SV *a, SV *b)
3963 I32 oldsaveix = PL_savestack_ix;
3964 I32 oldscopeix = PL_scopestack_ix;
3966 GvSV(PL_firstgv) = a;
3967 GvSV(PL_secondgv) = b;
3968 PL_stack_sp = PL_stack_base;
3971 if (PL_stack_sp != PL_stack_base + 1)
3972 Perl_croak(aTHX_ "Sort subroutine didn't return single value");
3973 if (!SvNIOKp(*PL_stack_sp))
3974 Perl_croak(aTHX_ "Sort subroutine didn't return a numeric value");
3975 result = SvIV(*PL_stack_sp);
3976 while (PL_scopestack_ix > oldscopeix) {
3979 leave_scope(oldsaveix);
3985 sv_ncmp(pTHXo_ SV *a, SV *b)
3989 return nv1 < nv2 ? -1 : nv1 > nv2 ? 1 : 0;
3993 sv_i_ncmp(pTHXo_ SV *a, SV *b)
3997 return iv1 < iv2 ? -1 : iv1 > iv2 ? 1 : 0;
3999 #define tryCALL_AMAGICbin(left,right,meth,svp) STMT_START { \
4001 if (PL_amagic_generation) { \
4002 if (SvAMAGIC(left)||SvAMAGIC(right))\
4003 *svp = amagic_call(left, \
4011 amagic_ncmp(pTHXo_ register SV *a, register SV *b)
4014 tryCALL_AMAGICbin(a,b,ncmp,&tmpsv);
4019 I32 i = SvIVX(tmpsv);
4029 return sv_ncmp(aTHXo_ a, b);
4033 amagic_i_ncmp(pTHXo_ register SV *a, register SV *b)
4036 tryCALL_AMAGICbin(a,b,ncmp,&tmpsv);
4041 I32 i = SvIVX(tmpsv);
4051 return sv_i_ncmp(aTHXo_ a, b);
4055 amagic_cmp(pTHXo_ register SV *str1, register SV *str2)
4058 tryCALL_AMAGICbin(str1,str2,scmp,&tmpsv);
4063 I32 i = SvIVX(tmpsv);
4073 return sv_cmp(str1, str2);
4077 amagic_cmp_locale(pTHXo_ register SV *str1, register SV *str2)
4080 tryCALL_AMAGICbin(str1,str2,scmp,&tmpsv);
4085 I32 i = SvIVX(tmpsv);
4095 return sv_cmp_locale(str1, str2);
4101 sv_cmp_locale_static(pTHXo_ register SV *str1, register SV *str2)
4103 return sv_cmp_locale(str1, str2);
4107 sv_cmp_static(pTHXo_ register SV *str1, register SV *str2)
4109 return sv_cmp(str1, str2);
4112 #endif /* PERL_OBJECT */