3 * Copyright (c) 1991-1997, 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.
23 #define WORD_ALIGN sizeof(U16)
26 #define DOCATCH(o) ((CATCH_GET == TRUE) ? docatch(o) : (o))
28 static OP *docatch _((OP *o));
29 static OP *doeval _((int gimme));
30 static OP *dofindlabel _((OP *op, char *label, OP **opstack, OP **oplimit));
31 static void doparseform _((SV *sv));
32 static I32 dopoptoeval _((I32 startingblock));
33 static I32 dopoptolabel _((char *label));
34 static I32 dopoptoloop _((I32 startingblock));
35 static I32 dopoptosub _((I32 startingblock));
36 static void save_lines _((AV *array, SV *sv));
37 static int sortcv _((const void *, const void *));
38 static int sortcmp _((const void *, const void *));
39 static int sortcmp_locale _((const void *, const void *));
49 cxix = dopoptosub(cxstack_ix);
53 switch (cxstack[cxix].blk_gimme) {
70 register PMOP *pm = (PMOP*)cLOGOP->op_other;
76 t = SvPV(tmpstr, len);
78 /* JMR: Check against the last compiled regexp */
79 if ( ! pm->op_pmregexp || ! pm->op_pmregexp->precomp
80 || strnNE(pm->op_pmregexp->precomp, t, len)
81 || pm->op_pmregexp->precomp[len]) {
82 if (pm->op_pmregexp) {
83 pregfree(pm->op_pmregexp);
84 pm->op_pmregexp = Null(REGEXP*); /* crucial if regcomp aborts */
87 pm->op_pmflags = pm->op_pmpermflags; /* reset case sensitivity */
88 pm->op_pmregexp = pregcomp(t, t + len, pm);
91 if (!pm->op_pmregexp->prelen && curpm)
93 else if (strEQ("\\s+", pm->op_pmregexp->precomp))
94 pm->op_pmflags |= PMf_WHITE;
96 if (pm->op_pmflags & PMf_KEEP) {
97 pm->op_private &= ~OPpRUNTIME; /* no point compiling again */
99 cLOGOP->op_first->op_next = op->op_next;
107 register PMOP *pm = (PMOP*) cLOGOP->op_other;
108 register CONTEXT *cx = &cxstack[cxstack_ix];
109 register SV *dstr = cx->sb_dstr;
110 register char *s = cx->sb_s;
111 register char *m = cx->sb_m;
112 char *orig = cx->sb_orig;
113 register REGEXP *rx = cx->sb_rx;
115 rxres_restore(&cx->sb_rxres, rx);
117 if (cx->sb_iters++) {
118 if (cx->sb_iters > cx->sb_maxiters)
119 DIE("Substitution loop");
121 if (!cx->sb_rxtainted)
122 cx->sb_rxtainted = SvTAINTED(TOPs);
123 sv_catsv(dstr, POPs);
126 if (cx->sb_once || !pregexec(rx, s, cx->sb_strend, orig,
127 s == m, Nullsv, cx->sb_safebase))
129 SV *targ = cx->sb_targ;
130 sv_catpvn(dstr, s, cx->sb_strend - s);
132 TAINT_IF(cx->sb_rxtainted || rx->exec_tainted);
134 (void)SvOOK_off(targ);
135 Safefree(SvPVX(targ));
136 SvPVX(targ) = SvPVX(dstr);
137 SvCUR_set(targ, SvCUR(dstr));
138 SvLEN_set(targ, SvLEN(dstr));
141 (void)SvPOK_only(targ);
145 PUSHs(sv_2mortal(newSViv((I32)cx->sb_iters - 1)));
146 LEAVE_SCOPE(cx->sb_oldsave);
148 RETURNOP(pm->op_next);
151 if (rx->subbase && rx->subbase != orig) {
154 cx->sb_orig = orig = rx->subbase;
156 cx->sb_strend = s + (cx->sb_strend - m);
158 cx->sb_m = m = rx->startp[0];
159 sv_catpvn(dstr, s, m-s);
160 cx->sb_s = rx->endp[0];
161 cx->sb_rxtainted |= rx->exec_tainted;
162 rxres_save(&cx->sb_rxres, rx);
163 RETURNOP(pm->op_pmreplstart);
174 if (!p || p[1] < rx->nparens) {
175 i = 6 + rx->nparens * 2;
183 *p++ = (UV)rx->subbase;
184 rx->subbase = Nullch;
188 *p++ = (UV)rx->subbeg;
189 *p++ = (UV)rx->subend;
190 for (i = 0; i <= rx->nparens; ++i) {
191 *p++ = (UV)rx->startp[i];
192 *p++ = (UV)rx->endp[i];
197 rxres_restore(rsp, rx)
204 Safefree(rx->subbase);
205 rx->subbase = (char*)(*p);
210 rx->subbeg = (char*)(*p++);
211 rx->subend = (char*)(*p++);
212 for (i = 0; i <= rx->nparens; ++i) {
213 rx->startp[i] = (char*)(*p++);
214 rx->endp[i] = (char*)(*p++);
225 Safefree((char*)(*p));
233 dSP; dMARK; dORIGMARK;
234 register SV *form = *++MARK;
246 bool chopspace = (strchr(chopset, ' ') != Nullch);
253 if (!SvMAGICAL(form) || !SvCOMPILED(form)) {
254 SvREADONLY_off(form);
258 SvPV_force(formtarget, len);
259 t = SvGROW(formtarget, len + SvCUR(form) + 1); /* XXX SvCUR bad */
262 /* need to jump to the next word */
263 s = f + len + WORD_ALIGN - SvCUR(form) % WORD_ALIGN;
272 case FF_LITERAL: arg = fpc[1]; name = "LITERAL"; break;
273 case FF_BLANK: arg = fpc[1]; name = "BLANK"; break;
274 case FF_SKIP: arg = fpc[1]; name = "SKIP"; break;
275 case FF_FETCH: arg = fpc[1]; name = "FETCH"; break;
276 case FF_DECIMAL: arg = fpc[1]; name = "DECIMAL"; break;
278 case FF_CHECKNL: name = "CHECKNL"; break;
279 case FF_CHECKCHOP: name = "CHECKCHOP"; break;
280 case FF_SPACE: name = "SPACE"; break;
281 case FF_HALFSPACE: name = "HALFSPACE"; break;
282 case FF_ITEM: name = "ITEM"; break;
283 case FF_CHOP: name = "CHOP"; break;
284 case FF_LINEGLOB: name = "LINEGLOB"; break;
285 case FF_NEWLINE: name = "NEWLINE"; break;
286 case FF_MORE: name = "MORE"; break;
287 case FF_LINEMARK: name = "LINEMARK"; break;
288 case FF_END: name = "END"; break;
291 PerlIO_printf(PerlIO_stderr(), "%-16s%ld\n", name, (long) arg);
293 PerlIO_printf(PerlIO_stderr(), "%-16s\n", name);
322 warn("Not enough format arguments");
327 item = s = SvPV(sv, len);
329 if (itemsize > fieldsize)
330 itemsize = fieldsize;
331 send = chophere = s + itemsize;
343 item = s = SvPV(sv, len);
345 if (itemsize <= fieldsize) {
346 send = chophere = s + itemsize;
357 itemsize = fieldsize;
358 send = chophere = s + itemsize;
359 while (s < send || (s == send && isSPACE(*s))) {
369 if (strchr(chopset, *s))
374 itemsize = chophere - item;
379 arg = fieldsize - itemsize;
388 arg = fieldsize - itemsize;
402 int ch = *t++ = *s++;
406 if ( !((*t++ = *s++) & ~31) )
416 while (*s && isSPACE(*s))
423 item = s = SvPV(sv, len);
436 SvCUR_set(formtarget, t - SvPVX(formtarget));
437 sv_catpvn(formtarget, item, itemsize);
438 SvGROW(formtarget, SvCUR(formtarget) + SvCUR(form) + 1);
439 t = SvPVX(formtarget) + SvCUR(formtarget);
444 /* If the field is marked with ^ and the value is undefined,
447 if ((arg & 512) && !SvOK(sv)) {
455 /* Formats aren't yet marked for locales, so assume "yes". */
458 sprintf(t, "%#*.*f", (int) fieldsize, (int) arg & 255, value);
460 sprintf(t, "%*.0f", (int) fieldsize, value);
467 while (t-- > linemark && *t == ' ') ;
475 if (arg) { /* repeat until fields exhausted? */
477 SvCUR_set(formtarget, t - SvPVX(formtarget));
478 lines += FmLINES(formtarget);
481 if (strnEQ(linemark, linemark - arg, arg))
482 DIE("Runaway format");
484 FmLINES(formtarget) = lines;
486 RETURNOP(cLISTOP->op_first);
497 arg = fieldsize - itemsize;
504 if (strnEQ(s," ",3)) {
505 while (s > SvPVX(formtarget) && isSPACE(s[-1]))
516 SvCUR_set(formtarget, t - SvPVX(formtarget));
517 FmLINES(formtarget) += lines;
529 if (stack_base + *markstack_ptr == sp) {
531 if (GIMME_V == G_SCALAR)
533 RETURNOP(op->op_next->op_next);
535 stack_sp = stack_base + *markstack_ptr + 1;
536 pp_pushmark(); /* push dst */
537 pp_pushmark(); /* push src */
538 ENTER; /* enter outer scope */
541 SAVESPTR(GvSV(defgv));
543 ENTER; /* enter inner scope */
546 src = stack_base[*markstack_ptr];
551 if (op->op_type == OP_MAPSTART)
552 pp_pushmark(); /* push top */
553 return ((LOGOP*)op->op_next)->op_other;
558 DIE("panic: mapstart"); /* uses grepstart */
564 I32 diff = (sp - stack_base) - *markstack_ptr;
572 if (diff > markstack_ptr[-1] - markstack_ptr[-2]) {
573 shift = diff - (markstack_ptr[-1] - markstack_ptr[-2]);
574 count = (sp - stack_base) - markstack_ptr[-1] + 2;
579 markstack_ptr[-1] += shift;
580 *markstack_ptr += shift;
584 dst = stack_base + (markstack_ptr[-2] += diff) - 1;
587 *dst-- = SvTEMP(TOPs) ? POPs : sv_mortalcopy(POPs);
589 LEAVE; /* exit inner scope */
592 if (markstack_ptr[-1] > *markstack_ptr) {
596 (void)POPMARK; /* pop top */
597 LEAVE; /* exit outer scope */
598 (void)POPMARK; /* pop src */
599 items = --*markstack_ptr - markstack_ptr[-1];
600 (void)POPMARK; /* pop dst */
601 SP = stack_base + POPMARK; /* pop original mark */
602 if (gimme == G_SCALAR) {
606 else if (gimme == G_ARRAY)
613 ENTER; /* enter inner scope */
616 src = stack_base[markstack_ptr[-1]];
620 RETURNOP(cLOGOP->op_other);
627 dSP; dMARK; dORIGMARK;
629 SV **myorigmark = ORIGMARK;
635 OP* nextop = op->op_next;
637 if (gimme != G_ARRAY) {
642 if (op->op_flags & OPf_STACKED) {
644 if (op->op_flags & OPf_SPECIAL) {
645 OP *kid = cLISTOP->op_first->op_sibling; /* pass pushmark */
646 kid = kUNOP->op_first; /* pass rv2gv */
647 kid = kUNOP->op_first; /* pass leave */
648 sortcop = kid->op_next;
649 stash = curcop->cop_stash;
652 cv = sv_2cv(*++MARK, &stash, &gv, 0);
653 if (!(cv && CvROOT(cv))) {
655 SV *tmpstr = sv_newmortal();
656 gv_efullname3(tmpstr, gv, Nullch);
657 if (cv && CvXSUB(cv))
658 DIE("Xsub \"%s\" called in sort", SvPVX(tmpstr));
659 DIE("Undefined sort subroutine \"%s\" called",
664 DIE("Xsub called in sort");
665 DIE("Undefined subroutine in sort");
667 DIE("Not a CODE reference in sort");
669 sortcop = CvSTART(cv);
670 SAVESPTR(CvROOT(cv)->op_ppaddr);
671 CvROOT(cv)->op_ppaddr = ppaddr[OP_NULL];
674 curpad = AvARRAY((AV*)AvARRAY(CvPADLIST(cv))[1]);
679 stash = curcop->cop_stash;
683 while (MARK < SP) { /* This may or may not shift down one here. */
685 if (*up = *++MARK) { /* Weed out nulls. */
687 if (!sortcop && !SvPOK(*up))
688 (void)sv_2pv(*up, &na);
692 max = --up - myorigmark;
698 bool oldcatch = CATCH_GET;
706 AvREAL_off(sortstack);
707 av_extend(sortstack, 32);
710 SWITCHSTACK(curstack, sortstack);
711 if (sortstash != stash) {
712 firstgv = gv_fetchpv("a", TRUE, SVt_PV);
713 secondgv = gv_fetchpv("b", TRUE, SVt_PV);
717 SAVESPTR(GvSV(firstgv));
718 SAVESPTR(GvSV(secondgv));
720 PUSHBLOCK(cx, CXt_NULL, stack_base);
721 if (!(op->op_flags & OPf_SPECIAL)) {
722 bool hasargs = FALSE;
723 cx->cx_type = CXt_SUB;
724 cx->blk_gimme = G_SCALAR;
727 SvREFCNT_inc(cv); /* in preparation for POPSUB */
729 sortcxix = cxstack_ix;
731 qsort((char*)(myorigmark+1), max, sizeof(SV*), sortcv);
734 SWITCHSTACK(sortstack, oldstack);
741 MEXTEND(SP, 20); /* Can't afford stack realloc on signal. */
742 qsort((char*)(ORIGMARK+1), max, sizeof(SV*),
743 (op->op_private & OPpLOCALE) ? sortcmp_locale : sortcmp);
746 stack_sp = ORIGMARK + max;
754 if (GIMME == G_ARRAY)
755 return cCONDOP->op_true;
756 return SvTRUEx(PAD_SV(op->op_targ)) ? cCONDOP->op_false : cCONDOP->op_true;
763 if (GIMME == G_ARRAY) {
764 RETURNOP(((CONDOP*)cUNOP->op_first)->op_false);
768 SV *targ = PAD_SV(op->op_targ);
770 if ((op->op_private & OPpFLIP_LINENUM)
771 ? last_in_gv && SvIV(sv) == IoLINES(GvIOp(last_in_gv))
773 sv_setiv(PAD_SV(cUNOP->op_first->op_targ), 1);
774 if (op->op_flags & OPf_SPECIAL) {
781 RETURNOP(((CONDOP*)cUNOP->op_first)->op_false);
794 if (GIMME == G_ARRAY) {
800 if (SvNIOKp(left) || !SvPOKp(left) ||
801 (looks_like_number(left) && *SvPVX(left) != '0') )
806 EXTEND_MORTAL(max - i + 1);
807 EXTEND(SP, max - i + 1);
810 sv = sv_2mortal(newSViv(i++));
815 SV *final = sv_mortalcopy(right);
817 char *tmps = SvPV(final, len);
819 sv = sv_mortalcopy(left);
820 while (!SvNIOKp(sv) && SvCUR(sv) <= len &&
821 strNE(SvPVX(sv),tmps) ) {
823 sv = sv_2mortal(newSVsv(sv));
826 if (strEQ(SvPVX(sv),tmps))
832 SV *targ = PAD_SV(cUNOP->op_first->op_targ);
834 if ((op->op_private & OPpFLIP_LINENUM)
835 ? last_in_gv && SvIV(sv) == IoLINES(GvIOp(last_in_gv))
837 sv_setiv(PAD_SV(((UNOP*)cUNOP->op_first)->op_first->op_targ), 0);
838 sv_catpv(targ, "E0");
853 register CONTEXT *cx;
855 for (i = cxstack_ix; i >= 0; i--) {
857 switch (cx->cx_type) {
860 warn("Exiting substitution via %s", op_name[op->op_type]);
864 warn("Exiting subroutine via %s", op_name[op->op_type]);
868 warn("Exiting eval via %s", op_name[op->op_type]);
872 warn("Exiting pseudo-block via %s", op_name[op->op_type]);
875 if (!cx->blk_loop.label ||
876 strNE(label, cx->blk_loop.label) ) {
877 DEBUG_l(deb("(Skipping label #%ld %s)\n",
878 (long)i, cx->blk_loop.label));
881 DEBUG_l( deb("(Found label #%ld %s)\n", (long)i, label));
891 I32 gimme = block_gimme();
892 return (gimme == G_VOID) ? G_SCALAR : gimme;
900 cxix = dopoptosub(cxstack_ix);
904 switch (cxstack[cxix].blk_gimme) {
912 croak("panic: bad gimme: %d\n", cxstack[cxix].blk_gimme);
917 dopoptosub(startingblock)
921 register CONTEXT *cx;
922 for (i = startingblock; i >= 0; i--) {
924 switch (cx->cx_type) {
929 DEBUG_l( deb("(Found sub #%ld)\n", (long)i));
937 dopoptoeval(startingblock)
941 register CONTEXT *cx;
942 for (i = startingblock; i >= 0; i--) {
944 switch (cx->cx_type) {
948 DEBUG_l( deb("(Found eval #%ld)\n", (long)i));
956 dopoptoloop(startingblock)
960 register CONTEXT *cx;
961 for (i = startingblock; i >= 0; i--) {
963 switch (cx->cx_type) {
966 warn("Exiting substitution via %s", op_name[op->op_type]);
970 warn("Exiting subroutine via %s", op_name[op->op_type]);
974 warn("Exiting eval via %s", op_name[op->op_type]);
978 warn("Exiting pseudo-block via %s", op_name[op->op_type]);
981 DEBUG_l( deb("(Found loop #%ld)\n", (long)i));
992 register CONTEXT *cx;
996 while (cxstack_ix > cxix) {
997 cx = &cxstack[cxstack_ix];
998 DEBUG_l(PerlIO_printf(Perl_debug_log, "Unwinding block %ld, type %s\n",
999 (long) cxstack_ix+1, block_type[cx->cx_type]));
1000 /* Note: we don't need to restore the base context info till the end. */
1001 switch (cx->cx_type) {
1004 continue; /* not break */
1027 register CONTEXT *cx;
1033 STRLEN klen = strlen(message);
1035 svp = hv_fetch(GvHV(errgv), message, klen, TRUE);
1038 static char prefix[] = "\t(in cleanup) ";
1039 sv_upgrade(*svp, SVt_IV);
1040 (void)SvIOK_only(*svp);
1041 SvGROW(GvSV(errgv), SvCUR(GvSV(errgv))+sizeof(prefix)+klen);
1042 sv_catpvn(GvSV(errgv), prefix, sizeof(prefix)-1);
1043 sv_catpvn(GvSV(errgv), message, klen);
1049 sv_setpv(GvSV(errgv), message);
1051 cxix = dopoptoeval(cxstack_ix);
1055 if (cxix < cxstack_ix)
1059 if (cx->cx_type != CXt_EVAL) {
1060 PerlIO_printf(PerlIO_stderr(), "panic: die %s", message);
1065 if (gimme == G_SCALAR)
1066 *++newsp = &sv_undef;
1071 if (optype == OP_REQUIRE) {
1072 char* msg = SvPVx(GvSV(errgv), na);
1073 DIE("%s", *msg ? msg : "Compilation failed in require");
1075 return pop_return();
1078 PerlIO_printf(PerlIO_stderr(), "%s",message);
1079 PerlIO_flush(PerlIO_stderr());
1088 if (SvTRUE(left) != SvTRUE(right))
1100 RETURNOP(cLOGOP->op_other);
1109 RETURNOP(cLOGOP->op_other);
1116 SV** mark = (stack_base + *markstack_ptr + 1);
1118 while (mark < sp) { /* emulate old interface */
1123 return pp_entersub();
1130 register I32 cxix = dopoptosub(cxstack_ix);
1131 register CONTEXT *cx;
1142 if (GIMME != G_ARRAY)
1146 if (DBsub && cxix >= 0 &&
1147 cxstack[cxix].blk_sub.cv == GvCV(DBsub))
1151 cxix = dopoptosub(cxix - 1);
1153 cx = &cxstack[cxix];
1154 if (cxstack[cxix].cx_type == CXt_SUB) {
1155 dbcxix = dopoptosub(cxix - 1);
1156 /* We expect that cxstack[dbcxix] is CXt_SUB, anyway, the
1157 field below is defined for any cx. */
1158 if (DBsub && dbcxix >= 0 && cxstack[dbcxix].blk_sub.cv == GvCV(DBsub))
1159 cx = &cxstack[dbcxix];
1162 if (GIMME != G_ARRAY) {
1165 sv_setpv(TARG, HvNAME(cx->blk_oldcop->cop_stash));
1170 PUSHs(sv_2mortal(newSVpv(HvNAME(cx->blk_oldcop->cop_stash), 0)));
1171 PUSHs(sv_2mortal(newSVpv(SvPVX(GvSV(cx->blk_oldcop->cop_filegv)), 0)));
1172 PUSHs(sv_2mortal(newSViv((I32)cx->blk_oldcop->cop_line)));
1175 if (cx->cx_type == CXt_SUB) { /* So is cxstack[dbcxix]. */
1177 gv_efullname3(sv, CvGV(cxstack[cxix].blk_sub.cv), Nullch);
1178 PUSHs(sv_2mortal(sv));
1179 PUSHs(sv_2mortal(newSViv((I32)cx->blk_sub.hasargs)));
1182 PUSHs(sv_2mortal(newSVpv("(eval)",0)));
1183 PUSHs(sv_2mortal(newSViv(0)));
1185 gimme = (I32)cx->blk_gimme;
1186 if (gimme == G_VOID)
1189 PUSHs(sv_2mortal(newSViv(gimme & G_ARRAY)));
1190 if (cx->cx_type == CXt_EVAL) {
1191 if (cx->blk_eval.old_op_type == OP_ENTEREVAL) {
1192 PUSHs(cx->blk_eval.cur_text);
1195 else if (cx->blk_eval.old_name) { /* Try blocks have old_name == 0. */
1196 /* Require, put the name. */
1197 PUSHs(sv_2mortal(newSVpv(cx->blk_eval.old_name, 0)));
1201 else if (cx->cx_type == CXt_SUB &&
1202 cx->blk_sub.hasargs &&
1203 curcop->cop_stash == debstash)
1205 AV *ary = cx->blk_sub.argarray;
1206 int off = AvARRAY(ary) - AvALLOC(ary);
1210 dbargs = GvAV(gv_AVadd(tmpgv = gv_fetchpv("DB::args", TRUE,
1213 AvREAL_off(dbargs); /* XXX Should be REIFY */
1216 if (AvMAX(dbargs) < AvFILL(ary) + off)
1217 av_extend(dbargs, AvFILL(ary) + off);
1218 Copy(AvALLOC(ary), AvARRAY(dbargs), AvFILL(ary) + 1 + off, SV*);
1219 AvFILL(dbargs) = AvFILL(ary) + off;
1229 SV * const *str1 = (SV * const *)a;
1230 SV * const *str2 = (SV * const *)b;
1231 I32 oldsaveix = savestack_ix;
1232 I32 oldscopeix = scopestack_ix;
1234 GvSV(firstgv) = *str1;
1235 GvSV(secondgv) = *str2;
1236 stack_sp = stack_base;
1239 if (stack_sp != stack_base + 1)
1240 croak("Sort subroutine didn't return single value");
1241 if (!SvNIOKp(*stack_sp))
1242 croak("Sort subroutine didn't return a numeric value");
1243 result = SvIV(*stack_sp);
1244 while (scopestack_ix > oldscopeix) {
1247 leave_scope(oldsaveix);
1256 return sv_cmp(*(SV * const *)a, *(SV * const *)b);
1260 sortcmp_locale(a, b)
1264 return sv_cmp_locale(*(SV * const *)a, *(SV * const *)b);
1276 sv_reset(tmps, curcop->cop_stash);
1289 TAINT_NOT; /* Each statement is presumed innocent */
1290 stack_sp = stack_base + cxstack[cxstack_ix].blk_oldsp;
1293 if (op->op_private || SvIV(DBsingle) || SvIV(DBsignal) || SvIV(DBtrace))
1297 register CONTEXT *cx;
1298 I32 gimme = G_ARRAY;
1305 DIE("No DB::DB routine defined");
1307 if (CvDEPTH(cv) >= 1 && !(debug & (1<<30))) /* don't do recursive DB::DB call */
1319 push_return(op->op_next);
1320 PUSHBLOCK(cx, CXt_SUB, sp);
1323 (void)SvREFCNT_inc(cv);
1325 curpad = AvARRAY((AV*)*av_fetch(CvPADLIST(cv),1,FALSE));
1326 RETURNOP(CvSTART(cv));
1340 register CONTEXT *cx;
1341 I32 gimme = GIMME_V;
1348 svp = &curpad[op->op_targ]; /* "my" variable */
1350 svp = &GvSV((GV*)POPs); /* symbol table variable */
1356 PUSHBLOCK(cx, CXt_LOOP, SP);
1357 PUSHLOOP(cx, svp, MARK);
1358 if (op->op_flags & OPf_STACKED)
1359 cx->blk_loop.iterary = (AV*)SvREFCNT_inc(POPs);
1361 cx->blk_loop.iterary = curstack;
1362 AvFILL(curstack) = sp - stack_base;
1363 cx->blk_loop.iterix = MARK - stack_base;
1372 register CONTEXT *cx;
1373 I32 gimme = GIMME_V;
1379 PUSHBLOCK(cx, CXt_LOOP, SP);
1380 PUSHLOOP(cx, 0, SP);
1388 register CONTEXT *cx;
1389 struct block_loop cxloop;
1397 POPLOOP1(cx); /* Delay POPLOOP2 until stack values are safe */
1400 if (gimme == G_VOID)
1402 else if (gimme == G_SCALAR) {
1404 *++newsp = sv_mortalcopy(*SP);
1406 *++newsp = &sv_undef;
1410 *++newsp = sv_mortalcopy(*++mark);
1411 TAINT_NOT; /* Each item is independent */
1417 POPLOOP2(); /* Stack values are safe: release loop vars ... */
1418 curpm = newpm; /* ... and pop $1 et al */
1430 register CONTEXT *cx;
1431 struct block_sub cxsub;
1432 bool popsub2 = FALSE;
1438 if (curstack == sortstack) {
1439 if (cxstack_ix == sortcxix || dopoptosub(cxstack_ix) <= sortcxix) {
1440 if (cxstack_ix > sortcxix)
1442 AvARRAY(curstack)[1] = *SP;
1443 stack_sp = stack_base + 1;
1448 cxix = dopoptosub(cxstack_ix);
1450 DIE("Can't return outside a subroutine");
1451 if (cxix < cxstack_ix)
1455 switch (cx->cx_type) {
1457 POPSUB1(cx); /* Delay POPSUB2 until stack values are safe */
1462 if (optype == OP_REQUIRE &&
1463 (MARK == SP || (gimme == G_SCALAR && !SvTRUE(*SP))) )
1465 /* Unassume the success we assumed earlier. */
1466 char *name = cx->blk_eval.old_name;
1467 (void)hv_delete(GvHVn(incgv), name, strlen(name), G_DISCARD);
1468 DIE("%s did not return a true value", name);
1472 DIE("panic: return");
1476 if (gimme == G_SCALAR) {
1478 *++newsp = (popsub2 && SvTEMP(*SP))
1479 ? *SP : sv_mortalcopy(*SP);
1481 *++newsp = &sv_undef;
1483 else if (gimme == G_ARRAY) {
1484 while (++MARK <= SP) {
1485 *++newsp = (popsub2 && SvTEMP(*MARK))
1486 ? *MARK : sv_mortalcopy(*MARK);
1487 TAINT_NOT; /* Each item is independent */
1492 /* Stack values are safe: */
1494 POPSUB2(); /* release CV and @_ ... */
1496 curpm = newpm; /* ... and pop $1 et al */
1499 return pop_return();
1506 register CONTEXT *cx;
1507 struct block_loop cxloop;
1508 struct block_sub cxsub;
1515 SV **mark = stack_base + cxstack[cxstack_ix].blk_oldsp;
1517 if (op->op_flags & OPf_SPECIAL) {
1518 cxix = dopoptoloop(cxstack_ix);
1520 DIE("Can't \"last\" outside a block");
1523 cxix = dopoptolabel(cPVOP->op_pv);
1525 DIE("Label not found for \"last %s\"", cPVOP->op_pv);
1527 if (cxix < cxstack_ix)
1531 switch (cx->cx_type) {
1533 POPLOOP1(cx); /* Delay POPLOOP2 until stack values are safe */
1535 nextop = cxloop.last_op->op_next;
1538 POPSUB1(cx); /* Delay POPSUB2 until stack values are safe */
1540 nextop = pop_return();
1544 nextop = pop_return();
1551 if (gimme == G_SCALAR) {
1553 *++newsp = ((pop2 == CXt_SUB) && SvTEMP(*SP))
1554 ? *SP : sv_mortalcopy(*SP);
1556 *++newsp = &sv_undef;
1558 else if (gimme == G_ARRAY) {
1559 while (++MARK <= SP) {
1560 *++newsp = ((pop2 == CXt_SUB) && SvTEMP(*MARK))
1561 ? *MARK : sv_mortalcopy(*MARK);
1562 TAINT_NOT; /* Each item is independent */
1568 /* Stack values are safe: */
1571 POPLOOP2(); /* release loop vars ... */
1575 POPSUB2(); /* release CV and @_ ... */
1578 curpm = newpm; /* ... and pop $1 et al */
1587 register CONTEXT *cx;
1590 if (op->op_flags & OPf_SPECIAL) {
1591 cxix = dopoptoloop(cxstack_ix);
1593 DIE("Can't \"next\" outside a block");
1596 cxix = dopoptolabel(cPVOP->op_pv);
1598 DIE("Label not found for \"next %s\"", cPVOP->op_pv);
1600 if (cxix < cxstack_ix)
1604 oldsave = scopestack[scopestack_ix - 1];
1605 LEAVE_SCOPE(oldsave);
1606 return cx->blk_loop.next_op;
1612 register CONTEXT *cx;
1615 if (op->op_flags & OPf_SPECIAL) {
1616 cxix = dopoptoloop(cxstack_ix);
1618 DIE("Can't \"redo\" outside a block");
1621 cxix = dopoptolabel(cPVOP->op_pv);
1623 DIE("Label not found for \"redo %s\"", cPVOP->op_pv);
1625 if (cxix < cxstack_ix)
1629 oldsave = scopestack[scopestack_ix - 1];
1630 LEAVE_SCOPE(oldsave);
1631 return cx->blk_loop.redo_op;
1634 static OP* lastgotoprobe;
1637 dofindlabel(op,label,opstack,oplimit)
1645 static char too_deep[] = "Target of goto is too deeply nested";
1649 if (op->op_type == OP_LEAVE ||
1650 op->op_type == OP_SCOPE ||
1651 op->op_type == OP_LEAVELOOP ||
1652 op->op_type == OP_LEAVETRY)
1654 *ops++ = cUNOP->op_first;
1659 if (op->op_flags & OPf_KIDS) {
1660 /* First try all the kids at this level, since that's likeliest. */
1661 for (kid = cUNOP->op_first; kid; kid = kid->op_sibling) {
1662 if ((kid->op_type == OP_NEXTSTATE || kid->op_type == OP_DBSTATE) &&
1663 kCOP->cop_label && strEQ(kCOP->cop_label, label))
1666 for (kid = cUNOP->op_first; kid; kid = kid->op_sibling) {
1667 if (kid == lastgotoprobe)
1669 if ((kid->op_type == OP_NEXTSTATE || kid->op_type == OP_DBSTATE) &&
1671 (ops[-1]->op_type != OP_NEXTSTATE &&
1672 ops[-1]->op_type != OP_DBSTATE)))
1674 if (op = dofindlabel(kid, label, ops, oplimit))
1684 return pp_goto(ARGS);
1693 register CONTEXT *cx;
1694 #define GOTO_DEPTH 64
1695 OP *enterops[GOTO_DEPTH];
1697 int do_dump = (op->op_type == OP_DUMP);
1700 if (op->op_flags & OPf_STACKED) {
1703 /* This egregious kludge implements goto &subroutine */
1704 if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVCV) {
1706 register CONTEXT *cx;
1707 CV* cv = (CV*)SvRV(sv);
1712 if (!CvROOT(cv) && !CvXSUB(cv)) {
1714 SV *tmpstr = sv_newmortal();
1715 gv_efullname3(tmpstr, CvGV(cv), Nullch);
1716 DIE("Goto undefined subroutine &%s",SvPVX(tmpstr));
1718 DIE("Goto undefined subroutine");
1721 /* First do some returnish stuff. */
1722 cxix = dopoptosub(cxstack_ix);
1724 DIE("Can't goto subroutine outside a subroutine");
1725 if (cxix < cxstack_ix)
1729 if (cx->blk_sub.hasargs) { /* put @_ back onto stack */
1730 AV* av = cx->blk_sub.argarray;
1732 items = AvFILL(av) + 1;
1734 EXTEND(stack_sp, items); /* @_ could have been extended. */
1735 Copy(AvARRAY(av), stack_sp, items, SV*);
1737 SvREFCNT_dec(GvAV(defgv));
1738 GvAV(defgv) = cx->blk_sub.savearray;
1742 if (!(CvDEPTH(cx->blk_sub.cv) = cx->blk_sub.olddepth))
1743 SvREFCNT_dec(cx->blk_sub.cv);
1744 oldsave = scopestack[scopestack_ix - 1];
1745 LEAVE_SCOPE(oldsave);
1747 /* Now do some callish stuff. */
1750 if (CvOLDSTYLE(cv)) {
1751 I32 (*fp3)_((int,int,int));
1756 fp3 = (I32(*)_((int,int,int)))CvXSUB(cv);
1757 items = (*fp3)(CvXSUBANY(cv).any_i32,
1758 mark - stack_base + 1,
1760 sp = stack_base + items;
1763 stack_sp--; /* There is no cv arg. */
1764 (void)(*CvXSUB(cv))(cv);
1767 return pop_return();
1770 AV* padlist = CvPADLIST(cv);
1771 SV** svp = AvARRAY(padlist);
1772 cx->blk_sub.cv = cv;
1773 cx->blk_sub.olddepth = CvDEPTH(cv);
1775 if (CvDEPTH(cv) < 2)
1776 (void)SvREFCNT_inc(cv);
1777 else { /* save temporaries on recursion? */
1778 if (CvDEPTH(cv) == 100 && dowarn)
1779 sub_crush_depth(cv);
1780 if (CvDEPTH(cv) > AvFILL(padlist)) {
1781 AV *newpad = newAV();
1782 SV **oldpad = AvARRAY(svp[CvDEPTH(cv)-1]);
1783 I32 ix = AvFILL((AV*)svp[1]);
1784 svp = AvARRAY(svp[0]);
1785 for ( ;ix > 0; ix--) {
1786 if (svp[ix] != &sv_undef) {
1787 char *name = SvPVX(svp[ix]);
1788 if ((SvFLAGS(svp[ix]) & SVf_FAKE)
1791 /* outer lexical or anon code */
1792 av_store(newpad, ix,
1793 SvREFCNT_inc(oldpad[ix]) );
1795 else { /* our own lexical */
1797 av_store(newpad, ix, sv = (SV*)newAV());
1798 else if (*name == '%')
1799 av_store(newpad, ix, sv = (SV*)newHV());
1801 av_store(newpad, ix, sv = NEWSV(0,0));
1806 av_store(newpad, ix, sv = NEWSV(0,0));
1810 if (cx->blk_sub.hasargs) {
1813 av_store(newpad, 0, (SV*)av);
1814 AvFLAGS(av) = AVf_REIFY;
1816 av_store(padlist, CvDEPTH(cv), (SV*)newpad);
1817 AvFILL(padlist) = CvDEPTH(cv);
1818 svp = AvARRAY(padlist);
1822 curpad = AvARRAY((AV*)svp[CvDEPTH(cv)]);
1823 if (cx->blk_sub.hasargs) {
1824 AV* av = (AV*)curpad[0];
1827 cx->blk_sub.savearray = GvAV(defgv);
1828 cx->blk_sub.argarray = av;
1829 GvAV(defgv) = (AV*)SvREFCNT_inc(av);
1832 if (items >= AvMAX(av) + 1) {
1834 if (AvARRAY(av) != ary) {
1835 AvMAX(av) += AvARRAY(av) - AvALLOC(av);
1836 SvPVX(av) = (char*)ary;
1838 if (items >= AvMAX(av) + 1) {
1839 AvMAX(av) = items - 1;
1840 Renew(ary,items+1,SV*);
1842 SvPVX(av) = (char*)ary;
1845 Copy(mark,AvARRAY(av),items,SV*);
1846 AvFILL(av) = items - 1;
1854 if (perldb && curstash != debstash) {
1856 * We do not care about using sv to call CV;
1857 * it's for informational purposes only.
1859 SV *sv = GvSV(DBsub);
1861 gv_efullname3(sv, CvGV(cv), Nullch);
1863 RETURNOP(CvSTART(cv));
1867 label = SvPV(sv,na);
1869 else if (op->op_flags & OPf_SPECIAL) {
1871 DIE("goto must have label");
1874 label = cPVOP->op_pv;
1876 if (label && *label) {
1883 for (ix = cxstack_ix; ix >= 0; ix--) {
1885 switch (cx->cx_type) {
1887 gotoprobe = eval_root; /* XXX not good for nested eval */
1890 gotoprobe = cx->blk_oldcop->op_sibling;
1896 gotoprobe = cx->blk_oldcop->op_sibling;
1898 gotoprobe = main_root;
1901 if (CvDEPTH(cx->blk_sub.cv)) {
1902 gotoprobe = CvROOT(cx->blk_sub.cv);
1907 DIE("Can't \"goto\" outside a block");
1911 gotoprobe = main_root;
1914 retop = dofindlabel(gotoprobe, label,
1915 enterops, enterops + GOTO_DEPTH);
1918 lastgotoprobe = gotoprobe;
1921 DIE("Can't find label %s", label);
1923 /* pop unwanted frames */
1925 if (ix < cxstack_ix) {
1932 oldsave = scopestack[scopestack_ix];
1933 LEAVE_SCOPE(oldsave);
1936 /* push wanted frames */
1938 if (*enterops && enterops[1]) {
1940 for (ix = 1; enterops[ix]; ix++) {
1950 if (!retop) retop = main_start;
1957 restartop = 0; /* hmm, must be GNU unexec().. */
1961 if (curstack == signalstack) {
1979 if (anum == 1 && VMSISH_EXIT)
1992 double value = SvNVx(GvSV(cCOP->cop_gv));
1993 register I32 match = I_32(value);
1996 if (((double)match) > value)
1997 --match; /* was fractional--truncate other way */
1999 match -= cCOP->uop.scop.scop_offset;
2002 else if (match > cCOP->uop.scop.scop_max)
2003 match = cCOP->uop.scop.scop_max;
2004 op = cCOP->uop.scop.scop_next[match];
2014 op = op->op_next; /* can't assume anything */
2016 match = *(SvPVx(GvSV(cCOP->cop_gv), na)) & 255;
2017 match -= cCOP->uop.scop.scop_offset;
2020 else if (match > cCOP->uop.scop.scop_max)
2021 match = cCOP->uop.scop.scop_max;
2022 op = cCOP->uop.scop.scop_next[match];
2031 save_lines(array, sv)
2035 register char *s = SvPVX(sv);
2036 register char *send = SvPVX(sv) + SvCUR(sv);
2038 register I32 line = 1;
2040 while (s && s < send) {
2041 SV *tmpstr = NEWSV(85,0);
2043 sv_upgrade(tmpstr, SVt_PVMG);
2044 t = strchr(s, '\n');
2050 sv_setpvn(tmpstr, s, t - s);
2051 av_store(array, line++, tmpstr);
2061 I32 oldrunlevel = runlevel;
2067 assert(CATCH_GET == TRUE);
2068 DEBUG_l(deb("(Setting up local jumplevel, runlevel = %ld)\n", (long)runlevel+1));
2072 default: /* topmost level handles it */
2074 runlevel = oldrunlevel;
2080 PerlIO_printf(PerlIO_stderr(), "panic: restartop\n");
2091 runlevel = oldrunlevel;
2110 /* set up a scratch pad */
2115 SAVESPTR(comppad_name);
2116 SAVEI32(comppad_name_fill);
2117 SAVEI32(min_intro_pending);
2118 SAVEI32(max_intro_pending);
2122 compcv = (CV*)NEWSV(1104,0);
2123 sv_upgrade((SV *)compcv, SVt_PVCV);
2124 CvUNIQUE_on(compcv);
2127 comppad_name = newAV();
2128 comppad_name_fill = 0;
2129 min_intro_pending = 0;
2130 av_push(comppad, Nullsv);
2131 curpad = AvARRAY(comppad);
2134 comppadlist = newAV();
2135 AvREAL_off(comppadlist);
2136 av_store(comppadlist, 0, (SV*)comppad_name);
2137 av_store(comppadlist, 1, (SV*)comppad);
2138 CvPADLIST(compcv) = comppadlist;
2140 if (saveop->op_type != OP_REQUIRE)
2141 CvOUTSIDE(compcv) = (CV*)SvREFCNT_inc(caller);
2145 /* make sure we compile in the right package */
2147 newstash = curcop->cop_stash;
2148 if (curstash != newstash) {
2150 curstash = newstash;
2154 SAVEFREESV(beginav);
2156 /* try to compile it */
2160 curcop = &compiling;
2161 curcop->cop_arybase = 0;
2163 rs = newSVpv("\n", 1);
2164 if (saveop->op_flags & OPf_SPECIAL)
2167 sv_setpv(GvSV(errgv),"");
2168 if (yyparse() || error_count || !eval_root) {
2179 SP = stack_base + POPMARK; /* pop original mark */
2185 if (optype == OP_REQUIRE) {
2186 char* msg = SvPVx(GvSV(errgv), na);
2187 DIE("%s", *msg ? msg : "Compilation failed in require");
2190 rs = SvREFCNT_inc(nrs);
2194 rs = SvREFCNT_inc(nrs);
2195 compiling.cop_line = 0;
2196 SAVEFREEOP(eval_root);
2198 scalarvoid(eval_root);
2199 else if (gimme & G_ARRAY)
2204 DEBUG_x(dump_eval());
2206 /* Register with debugger: */
2207 if (perldb && saveop->op_type == OP_REQUIRE) {
2208 CV *cv = perl_get_cv("DB::postponed", FALSE);
2212 XPUSHs((SV*)compiling.cop_filegv);
2214 perl_call_sv((SV*)cv, G_DISCARD);
2218 /* compiled okay, so do it */
2220 CvDEPTH(compcv) = 1;
2222 SP = stack_base + POPMARK; /* pop original mark */
2223 RETURNOP(eval_start);
2229 register CONTEXT *cx;
2233 SV *namesv = Nullsv;
2235 I32 gimme = G_SCALAR;
2236 PerlIO *tryrsfp = 0;
2239 if (SvNIOKp(sv) && !SvPOKp(sv)) {
2240 SET_NUMERIC_STANDARD();
2241 if (atof(patchlevel) + 0.00000999 < SvNV(sv))
2242 DIE("Perl %s required--this is only version %s, stopped",
2243 SvPV(sv,na),patchlevel);
2246 name = SvPV(sv, na);
2248 DIE("Null filename used");
2249 TAINT_PROPER("require");
2250 if (op->op_type == OP_REQUIRE &&
2251 (svp = hv_fetch(GvHVn(incgv), name, SvCUR(sv), 0)) &&
2255 /* prepare to compile file */
2260 (name[1] == '.' && name[2] == '/')))
2262 || (name[0] && name[1] == ':')
2265 || (strchr(name,':') || ((*name == '[' || *name == '<') &&
2266 (isALNUM(name[1]) || strchr("$-_]>",name[1]))))
2271 tryrsfp = PerlIO_open(name,"r");
2274 AV *ar = GvAVn(incgv);
2278 if ((unixname = tounixspec(name, Nullch)) != Nullch)
2281 namesv = NEWSV(806, 0);
2282 for (i = 0; i <= AvFILL(ar); i++) {
2283 char *dir = SvPVx(*av_fetch(ar, i, TRUE), na);
2286 if ((unixdir = tounixpath(dir, Nullch)) == Nullch)
2288 sv_setpv(namesv, unixdir);
2289 sv_catpv(namesv, unixname);
2291 sv_setpvf(namesv, "%s/%s", dir, name);
2293 tryname = SvPVX(namesv);
2294 tryrsfp = PerlIO_open(tryname, "r");
2296 if (tryname[0] == '.' && tryname[1] == '/')
2303 SAVESPTR(compiling.cop_filegv);
2304 compiling.cop_filegv = gv_fetchfile(tryrsfp ? tryname : name);
2305 SvREFCNT_dec(namesv);
2307 if (op->op_type == OP_REQUIRE) {
2308 SV *msg = sv_2mortal(newSVpvf("Can't locate %s in @INC", name));
2309 if (instr(SvPVX(msg), ".h "))
2310 sv_catpv(msg, " (change .h to .ph maybe?)");
2311 if (instr(SvPVX(msg), ".ph "))
2312 sv_catpv(msg, " (did you run h2ph?)");
2319 /* Assume success here to prevent recursive requirement. */
2320 (void)hv_store(GvHVn(incgv), name, strlen(name),
2321 newSVsv(GvSV(compiling.cop_filegv)), 0 );
2325 lex_start(sv_2mortal(newSVpv("",0)));
2327 save_aptr(&rsfp_filters);
2328 rsfp_filters = NULL;
2332 name = savepv(name);
2337 /* switch to eval mode */
2339 push_return(op->op_next);
2340 PUSHBLOCK(cx, CXt_EVAL, SP);
2341 PUSHEVAL(cx, name, compiling.cop_filegv);
2343 compiling.cop_line = 0;
2346 return DOCATCH(doeval(G_SCALAR));
2351 return pp_require(ARGS);
2357 register CONTEXT *cx;
2359 I32 gimme = GIMME_V, was = sub_generation;
2360 char tmpbuf[TYPE_DIGITS(long) + 12];
2365 if (!SvPV(sv,len) || !len)
2367 TAINT_PROPER("eval");
2373 /* switch to eval mode */
2375 SAVESPTR(compiling.cop_filegv);
2376 sprintf(tmpbuf, "_<(eval %lu)", (unsigned long)++evalseq);
2377 compiling.cop_filegv = gv_fetchfile(tmpbuf+2);
2378 compiling.cop_line = 1;
2379 /* XXX For C<eval "...">s within BEGIN {} blocks, this ends up
2380 deleting the eval's FILEGV from the stash before gv_check() runs
2381 (i.e. before run-time proper). To work around the coredump that
2382 ensues, we always turn GvMULTI_on for any globals that were
2383 introduced within evals. See force_ident(). GSAR 96-10-12 */
2384 safestr = savepv(tmpbuf);
2385 SAVEDELETE(defstash, safestr, strlen(safestr));
2387 hints = op->op_targ;
2389 push_return(op->op_next);
2390 PUSHBLOCK(cx, CXt_EVAL, SP);
2391 PUSHEVAL(cx, 0, compiling.cop_filegv);
2393 /* prepare to compile string */
2395 if (perldb && curstash != debstash)
2396 save_lines(GvAV(compiling.cop_filegv), linestr);
2398 ret = doeval(gimme);
2399 if (perldb && was != sub_generation) { /* Some subs defined here. */
2400 strcpy(safestr, "_<(eval )"); /* Anything fake and short. */
2402 return DOCATCH(ret);
2412 register CONTEXT *cx;
2414 U8 save_flags = op -> op_flags;
2419 retop = pop_return();
2422 if (gimme == G_VOID)
2424 else if (gimme == G_SCALAR) {
2427 if (SvFLAGS(TOPs) & SVs_TEMP)
2430 *MARK = sv_mortalcopy(TOPs);
2438 /* in case LEAVE wipes old return values */
2439 for (mark = newsp + 1; mark <= SP; mark++) {
2440 if (!(SvFLAGS(*mark) & SVs_TEMP)) {
2441 *mark = sv_mortalcopy(*mark);
2442 TAINT_NOT; /* Each item is independent */
2446 curpm = newpm; /* Don't pop $1 et al till now */
2449 assert(CvDEPTH(compcv) == 1);
2451 CvDEPTH(compcv) = 0;
2453 if (optype == OP_REQUIRE &&
2454 !(gimme == G_SCALAR ? SvTRUE(*sp) : sp > newsp))
2456 /* Unassume the success we assumed earlier. */
2457 char *name = cx->blk_eval.old_name;
2458 (void)hv_delete(GvHVn(incgv), name, strlen(name), G_DISCARD);
2459 retop = die("%s did not return a true value", name);
2465 if (!(save_flags & OPf_SPECIAL))
2466 sv_setpv(GvSV(errgv),"");
2474 register CONTEXT *cx;
2475 I32 gimme = GIMME_V;
2480 push_return(cLOGOP->op_other->op_next);
2481 PUSHBLOCK(cx, CXt_EVAL, SP);
2483 eval_root = op; /* Only needed so that goto works right. */
2486 sv_setpv(GvSV(errgv),"");
2488 return DOCATCH(op->op_next);
2498 register CONTEXT *cx;
2506 if (gimme == G_VOID)
2508 else if (gimme == G_SCALAR) {
2511 if (SvFLAGS(TOPs) & (SVs_PADTMP|SVs_TEMP))
2514 *MARK = sv_mortalcopy(TOPs);
2523 /* in case LEAVE wipes old return values */
2524 for (mark = newsp + 1; mark <= SP; mark++) {
2525 if (!(SvFLAGS(*mark) & (SVs_PADTMP|SVs_TEMP))) {
2526 *mark = sv_mortalcopy(*mark);
2527 TAINT_NOT; /* Each item is independent */
2531 curpm = newpm; /* Don't pop $1 et al till now */
2534 sv_setpv(GvSV(errgv),"");
2543 register char *s = SvPV_force(sv, len);
2544 register char *send = s + len;
2545 register char *base;
2546 register I32 skipspaces = 0;
2549 bool postspace = FALSE;
2557 croak("Null picture in formline");
2559 New(804, fops, (send - s)*3+10, U16); /* Almost certainly too long... */
2564 *fpc++ = FF_LINEMARK;
2565 noblank = repeat = FALSE;
2583 case ' ': case '\t':
2594 *fpc++ = FF_LITERAL;
2602 *fpc++ = skipspaces;
2606 *fpc++ = FF_NEWLINE;
2610 arg = fpc - linepc + 1;
2617 *fpc++ = FF_LINEMARK;
2618 noblank = repeat = FALSE;
2627 ischop = s[-1] == '^';
2633 arg = (s - base) - 1;
2635 *fpc++ = FF_LITERAL;
2644 *fpc++ = FF_LINEGLOB;
2646 else if (*s == '#' || (*s == '.' && s[1] == '#')) {
2647 arg = ischop ? 512 : 0;
2657 arg |= 256 + (s - f);
2659 *fpc++ = s - base; /* fieldsize for FETCH */
2660 *fpc++ = FF_DECIMAL;
2665 bool ismore = FALSE;
2668 while (*++s == '>') ;
2669 prespace = FF_SPACE;
2671 else if (*s == '|') {
2672 while (*++s == '|') ;
2673 prespace = FF_HALFSPACE;
2678 while (*++s == '<') ;
2681 if (*s == '.' && s[1] == '.' && s[2] == '.') {
2685 *fpc++ = s - base; /* fieldsize for FETCH */
2687 *fpc++ = ischop ? FF_CHECKCHOP : FF_CHECKNL;
2705 { /* need to jump to the next word */
2707 z = WORD_ALIGN - SvCUR(sv) % WORD_ALIGN;
2708 SvGROW(sv, SvCUR(sv) + z + arg * sizeof(U16) + 4);
2709 s = SvPVX(sv) + SvCUR(sv) + z;
2711 Copy(fops, s, arg, U16);
2713 sv_magic(sv, Nullsv, 'f', Nullch, 0);