X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=blobdiff_plain;f=pp_ctl.c;h=046c6661f2426f492da5748ce37eaf08981ae27d;hb=fcf2db383b9625d65c84a8308e9be05a073bed3b;hp=fce163fc3e9538e06f15dd2f876087146a2be80e;hpb=084916e3fc0f2b4a3c1f5c34365624111b26973e;p=p5sagit%2Fp5-mst-13.2.git

diff --git a/pp_ctl.c b/pp_ctl.c
index fce163f..046c666 100644
--- a/pp_ctl.c
+++ b/pp_ctl.c
@@ -1,6 +1,6 @@
 /*    pp_ctl.c
  *
- *    Copyright (c) 1991-2000, Larry Wall
+ *    Copyright (c) 1991-2001, Larry Wall
  *
  *    You may distribute under the terms of either the GNU General Public
  *    License or the Artistic License, as specified in the README file.
@@ -47,7 +47,7 @@ static I32 sv_cmp_locale_static(pTHXo_ SV *a, SV *b);
 
 PP(pp_wantarray)
 {
-    djSP;
+    dSP;
     I32 cxix;
     EXTEND(SP, 1);
 
@@ -80,7 +80,7 @@ PP(pp_regcreset)
 
 PP(pp_regcomp)
 {
-    djSP;
+    dSP;
     register PMOP *pm = (PMOP*)cLOGOP->op_other;
     register char *t;
     SV *tmpstr;
@@ -91,7 +91,7 @@ PP(pp_regcomp)
     if (SvROK(tmpstr)) {
 	SV *sv = SvRV(tmpstr);
 	if(SvMAGICAL(sv))
-	    mg = mg_find(sv, 'r');
+	    mg = mg_find(sv, PERL_MAGIC_qr);
     }
     if (mg) {
 	regexp *re = (regexp *)mg->mg_obj;
@@ -115,9 +115,16 @@ PP(pp_regcomp)
 
 	    pm->op_pmflags = pm->op_pmpermflags;	/* reset case sensitivity */
 	    if (DO_UTF8(tmpstr))
-		pm->op_pmdynflags |= PMdf_UTF8;
+		pm->op_pmdynflags |= PMdf_DYN_UTF8;
+	    else {
+		pm->op_pmdynflags &= ~PMdf_DYN_UTF8;
+		if (pm->op_pmdynflags & PMdf_UTF8)
+		    t = (char*)bytes_to_utf8((U8*)t, &len);
+	    }
 	    pm->op_pmregexp = CALLREGCOMP(aTHX_ t, t + len, pm);
-	    PL_reginterp_cnt = 0;		/* XXXX Be extra paranoid - needed
+	    if (!DO_UTF8(tmpstr) && (pm->op_pmdynflags & PMdf_UTF8))
+		Safefree(t);
+	    PL_reginterp_cnt = 0;	/* XXXX Be extra paranoid - needed
 					   inside tie/overload accessors.  */
 	}
     }
@@ -149,7 +156,7 @@ PP(pp_regcomp)
 
 PP(pp_substcont)
 {
-    djSP;
+    dSP;
     register PMOP *pm = (PMOP*) cLOGOP->op_other;
     register PERL_CONTEXT *cx = &cxstack[cxstack_ix];
     register SV *dstr = cx->sb_dstr;
@@ -176,8 +183,8 @@ PP(pp_substcont)
 				      : (REXEC_COPY_STR|REXEC_IGNOREPOS|REXEC_NOT_FIRST))))
 	{
 	    SV *targ = cx->sb_targ;
-	    sv_catpvn(dstr, s, cx->sb_strend - s);
 
+	    sv_catpvn(dstr, s, cx->sb_strend - s);
 	    cx->sb_rxtainted |= RX_MATCH_TAINTED(rx);
 
 	    (void)SvOOK_off(targ);
@@ -185,13 +192,15 @@ PP(pp_substcont)
 	    SvPVX(targ) = SvPVX(dstr);
 	    SvCUR_set(targ, SvCUR(dstr));
 	    SvLEN_set(targ, SvLEN(dstr));
+	    if (DO_UTF8(dstr))
+		SvUTF8_on(targ);
 	    SvPVX(dstr) = 0;
 	    sv_free(dstr);
 
 	    TAINT_IF(cx->sb_rxtainted & 1);
 	    PUSHs(sv_2mortal(newSViv((I32)cx->sb_iters - 1)));
 
-	    (void)SvPOK_only(targ);
+	    (void)SvPOK_only_UTF8(targ);
 	    TAINT_IF(cx->sb_rxtainted);
 	    SvSETMAGIC(targ);
 	    SvTAINT(targ);
@@ -209,17 +218,18 @@ PP(pp_substcont)
 	cx->sb_strend = s + (cx->sb_strend - m);
     }
     cx->sb_m = m = rx->startp[0] + orig;
-    sv_catpvn(dstr, s, m-s);
+    if (m > s)
+	sv_catpvn(dstr, s, m-s);
     cx->sb_s = rx->endp[0] + orig;
     { /* Update the pos() information. */
 	SV *sv = cx->sb_targ;
 	MAGIC *mg;
 	I32 i;
 	if (SvTYPE(sv) < SVt_PVMG)
-	    SvUPGRADE(sv, SVt_PVMG);
-	if (!(mg = mg_find(sv, 'g'))) {
-	    sv_magic(sv, Nullsv, 'g', Nullch, 0);
-	    mg = mg_find(sv, 'g');
+	    (void)SvUPGRADE(sv, SVt_PVMG);
+	if (!(mg = mg_find(sv, PERL_MAGIC_regex_global))) {
+	    sv_magic(sv, Nullsv, PERL_MAGIC_regex_global, Nullch, 0);
+	    mg = mg_find(sv, PERL_MAGIC_regex_global);
 	}
 	i = m - orig;
 	if (DO_UTF8(sv))
@@ -294,7 +304,7 @@ Perl_rxres_free(pTHX_ void **rsp)
 
 PP(pp_formline)
 {
-    djSP; dMARK; dORIGMARK;
+    dSP; dMARK; dORIGMARK;
     register SV *tmpForm = *++MARK;
     register U16 *fpc;
     register char *t;
@@ -302,18 +312,18 @@ PP(pp_formline)
     register char *s;
     register char *send;
     register I32 arg;
-    register SV *sv;
-    char *item;
-    I32 itemsize;
-    I32 fieldsize;
+    register SV *sv = Nullsv;
+    char *item = Nullch;
+    I32 itemsize  = 0;
+    I32 fieldsize = 0;
     I32 lines = 0;
     bool chopspace = (strchr(PL_chopset, ' ') != Nullch);
-    char *chophere;
-    char *linemark;
+    char *chophere = Nullch;
+    char *linemark = Nullch;
     NV value;
-    bool gotsome;
+    bool gotsome = FALSE;
     STRLEN len;
-    STRLEN fudge = SvCUR(tmpForm) * (IN_BYTE ? 1 : 3) + 1;
+    STRLEN fudge = SvCUR(tmpForm) * (IN_BYTES ? 1 : 3) + 1;
     bool item_is_utf = FALSE;
 
     if (!SvMAGICAL(tmpForm) || !SvCOMPILED(tmpForm)) {
@@ -363,7 +373,7 @@ PP(pp_formline)
 		PerlIO_printf(Perl_debug_log, "%-16s%ld\n", name, (long) arg);
 	    else
 		PerlIO_printf(Perl_debug_log, "%-16s\n", name);
-	} )
+	} );
 	switch (*fpc++) {
 	case FF_LINEMARK:
 	    linemark = t;
@@ -540,8 +550,14 @@ PP(pp_formline)
 	    s = item;
 	    if (item_is_utf) {
 		while (arg--) {
-		    if (*s & 0x80) {
-			switch (UTF8SKIP(s)) {
+		    if (UTF8_IS_CONTINUED(*s)) {
+			STRLEN skip = UTF8SKIP(s);
+			switch (skip) {
+			default:
+			    Move(s,t,skip,char);
+			    s += skip;
+			    t += skip;
+			    break;
 			case 7: *t++ = *s++;
 			case 6: *t++ = *s++;
 			case 5: *t++ = *s++;
@@ -654,8 +670,8 @@ PP(pp_formline)
 #if defined(USE_LONG_DOUBLE)
 		if (arg & 256) {
 		    sprintf(t, "%#0*.*" PERL_PRIfldbl,
-			    (int) fieldsize, (int) arg & 255, value); 
-/* is this legal? I don't have long doubles */      
+			    (int) fieldsize, (int) arg & 255, value);
+/* is this legal? I don't have long doubles */
 		} else {
 		    sprintf(t, "%0*.0" PERL_PRIfldbl, (int) fieldsize, value);
 		}
@@ -672,7 +688,7 @@ PP(pp_formline)
 	    }
 	    t += fieldsize;
 	    break;
-	    
+	
 	case FF_NEWLINE:
 	    f++;
 	    while (t-- > linemark && *t == ' ') ;
@@ -740,7 +756,7 @@ PP(pp_formline)
 
 PP(pp_grepstart)
 {
-    djSP;
+    dSP;
     SV *src;
 
     if (PL_stack_base + *PL_markstack_ptr == SP) {
@@ -777,12 +793,12 @@ PP(pp_mapstart)
 
 PP(pp_mapwhile)
 {
-    djSP;
+    dSP;
     I32 items = (SP - PL_stack_base) - *PL_markstack_ptr; /* how many new items */
     I32 count;
     I32 shift;
     SV** src;
-    SV** dst; 
+    SV** dst;
 
     /* first, move source pointer to the next item in the source list */
     ++PL_markstack_ptr[-1];
@@ -814,7 +830,7 @@ PP(pp_mapwhile)
 	     * irrelevant.  --jhi */
             if (shift < count)
                 shift = count; /* Avoid shifting too often --Ben Tilly */
-	    
+	
 	    EXTEND(SP,shift);
 	    src = SP;
 	    dst = (SP += shift);
@@ -824,9 +840,9 @@ PP(pp_mapwhile)
 		*dst-- = *src--;
 	}
 	/* copy the new items down to the destination list */
-	dst = PL_stack_base + (PL_markstack_ptr[-2] += items) - 1; 
+	dst = PL_stack_base + (PL_markstack_ptr[-2] += items) - 1;
 	while (items--)
-	    *dst-- = SvTEMP(TOPs) ? POPs : sv_mortalcopy(POPs); 
+	    *dst-- = SvTEMP(TOPs) ? POPs : sv_mortalcopy(POPs);
     }
     LEAVE;					/* exit inner scope */
 
@@ -865,13 +881,13 @@ PP(pp_mapwhile)
 
 PP(pp_sort)
 {
-    djSP; dMARK; dORIGMARK;
+    dSP; dMARK; dORIGMARK;
     register SV **up;
     SV **myorigmark = ORIGMARK;
     register I32 max;
     HV *stash;
     GV *gv;
-    CV *cv;
+    CV *cv = 0;
     I32 gimme = GIMME;
     OP* nextop = PL_op->op_next;
     I32 overloading = 0;
@@ -1015,7 +1031,7 @@ PP(pp_sort)
 			? ( (PL_op->op_private & OPpSORT_INTEGER)
 			    ? ( overloading ? amagic_i_ncmp : sv_i_ncmp)
 			    : ( overloading ? amagic_ncmp : sv_ncmp))
-			: ( (PL_op->op_private & OPpLOCALE)
+			: ( IN_LOCALE_RUNTIME
 			    ? ( overloading
 				? amagic_cmp_locale
 				: sv_cmp_locale_static)
@@ -1050,7 +1066,7 @@ PP(pp_range)
 
 PP(pp_flip)
 {
-    djSP;
+    dSP;
 
     if (GIMME == G_ARRAY) {
 	RETURNOP(((LOGOP*)cUNOP->op_first)->op_other);
@@ -1063,7 +1079,7 @@ PP(pp_flip)
  	if (PL_op->op_private & OPpFLIP_LINENUM) {
  	    struct io *gp_io;
  	    flip = PL_last_in_gv
- 		&& (gp_io = GvIOp(PL_last_in_gv))
+ 		&& (gp_io = GvIO(PL_last_in_gv))
  		&& SvIV(sv) == (IV)IoLINES(gp_io);
  	} else {
  	    flip = SvTRUE(sv);
@@ -1089,7 +1105,7 @@ PP(pp_flip)
 
 PP(pp_flop)
 {
-    djSP;
+    dSP;
 
     if (GIMME == G_ARRAY) {
 	dPOPPOPssrl;
@@ -1144,7 +1160,8 @@ PP(pp_flop)
 	SV *targ = PAD_SV(cUNOP->op_first->op_targ);
 	sv_inc(targ);
 	if ((PL_op->op_private & OPpFLIP_LINENUM)
-	  ? (PL_last_in_gv && SvIV(sv) == (IV)IoLINES(GvIOp(PL_last_in_gv)))
+	  ? (GvIO(PL_last_in_gv)
+	     && SvIV(sv) == (IV)IoLINES(GvIOp(PL_last_in_gv)))
 	  : SvTRUE(sv) ) {
 	    sv_setiv(PAD_SV(((UNOP*)cUNOP->op_first)->op_first->op_targ), 0);
 	    sv_catpv(targ, "E0");
@@ -1160,7 +1177,6 @@ PP(pp_flop)
 STATIC I32
 S_dopoptolabel(pTHX_ char *label)
 {
-    dTHR;
     register I32 i;
     register PERL_CONTEXT *cx;
 
@@ -1169,27 +1185,27 @@ S_dopoptolabel(pTHX_ char *label)
 	switch (CxTYPE(cx)) {
 	case CXt_SUBST:
 	    if (ckWARN(WARN_EXITING))
-		Perl_warner(aTHX_ WARN_EXITING, "Exiting substitution via %s", 
+		Perl_warner(aTHX_ WARN_EXITING, "Exiting substitution via %s",
 			PL_op_name[PL_op->op_type]);
 	    break;
 	case CXt_SUB:
 	    if (ckWARN(WARN_EXITING))
-		Perl_warner(aTHX_ WARN_EXITING, "Exiting subroutine via %s", 
+		Perl_warner(aTHX_ WARN_EXITING, "Exiting subroutine via %s",
 			PL_op_name[PL_op->op_type]);
 	    break;
 	case CXt_FORMAT:
 	    if (ckWARN(WARN_EXITING))
-		Perl_warner(aTHX_ WARN_EXITING, "Exiting format via %s", 
+		Perl_warner(aTHX_ WARN_EXITING, "Exiting format via %s",
 			PL_op_name[PL_op->op_type]);
 	    break;
 	case CXt_EVAL:
 	    if (ckWARN(WARN_EXITING))
-		Perl_warner(aTHX_ WARN_EXITING, "Exiting eval via %s", 
+		Perl_warner(aTHX_ WARN_EXITING, "Exiting eval via %s",
 			PL_op_name[PL_op->op_type]);
 	    break;
 	case CXt_NULL:
 	    if (ckWARN(WARN_EXITING))
-		Perl_warner(aTHX_ WARN_EXITING, "Exiting pseudo-block via %s", 
+		Perl_warner(aTHX_ WARN_EXITING, "Exiting pseudo-block via %s",
 			PL_op_name[PL_op->op_type]);
 	    return -1;
 	case CXt_LOOP:
@@ -1216,7 +1232,6 @@ Perl_dowantarray(pTHX)
 I32
 Perl_block_gimme(pTHX)
 {
-    dTHR;
     I32 cxix;
 
     cxix = dopoptosub(cxstack_ix);
@@ -1237,17 +1252,29 @@ Perl_block_gimme(pTHX)
     }
 }
 
+I32
+Perl_is_lvalue_sub(pTHX)
+{
+    I32 cxix;
+
+    cxix = dopoptosub(cxstack_ix);
+    assert(cxix >= 0);  /* We should only be called from inside subs */
+
+    if (cxstack[cxix].blk_sub.lval && CvLVALUE(cxstack[cxix].blk_sub.cv))
+	return cxstack[cxix].blk_sub.lval;
+    else
+	return 0;
+}
+
 STATIC I32
 S_dopoptosub(pTHX_ I32 startingblock)
 {
-    dTHR;
     return dopoptosub_at(cxstack, startingblock);
 }
 
 STATIC I32
 S_dopoptosub_at(pTHX_ PERL_CONTEXT *cxstk, I32 startingblock)
 {
-    dTHR;
     I32 i;
     register PERL_CONTEXT *cx;
     for (i = startingblock; i >= 0; i--) {
@@ -1268,7 +1295,6 @@ S_dopoptosub_at(pTHX_ PERL_CONTEXT *cxstk, I32 startingblock)
 STATIC I32
 S_dopoptoeval(pTHX_ I32 startingblock)
 {
-    dTHR;
     I32 i;
     register PERL_CONTEXT *cx;
     for (i = startingblock; i >= 0; i--) {
@@ -1287,7 +1313,6 @@ S_dopoptoeval(pTHX_ I32 startingblock)
 STATIC I32
 S_dopoptoloop(pTHX_ I32 startingblock)
 {
-    dTHR;
     I32 i;
     register PERL_CONTEXT *cx;
     for (i = startingblock; i >= 0; i--) {
@@ -1295,27 +1320,27 @@ S_dopoptoloop(pTHX_ I32 startingblock)
 	switch (CxTYPE(cx)) {
 	case CXt_SUBST:
 	    if (ckWARN(WARN_EXITING))
-		Perl_warner(aTHX_ WARN_EXITING, "Exiting substitution via %s", 
+		Perl_warner(aTHX_ WARN_EXITING, "Exiting substitution via %s",
 			PL_op_name[PL_op->op_type]);
 	    break;
 	case CXt_SUB:
 	    if (ckWARN(WARN_EXITING))
-		Perl_warner(aTHX_ WARN_EXITING, "Exiting subroutine via %s", 
+		Perl_warner(aTHX_ WARN_EXITING, "Exiting subroutine via %s",
 			PL_op_name[PL_op->op_type]);
 	    break;
 	case CXt_FORMAT:
 	    if (ckWARN(WARN_EXITING))
-		Perl_warner(aTHX_ WARN_EXITING, "Exiting format via %s", 
+		Perl_warner(aTHX_ WARN_EXITING, "Exiting format via %s",
 			PL_op_name[PL_op->op_type]);
 	    break;
 	case CXt_EVAL:
 	    if (ckWARN(WARN_EXITING))
-		Perl_warner(aTHX_ WARN_EXITING, "Exiting eval via %s", 
+		Perl_warner(aTHX_ WARN_EXITING, "Exiting eval via %s",
 			PL_op_name[PL_op->op_type]);
 	    break;
 	case CXt_NULL:
 	    if (ckWARN(WARN_EXITING))
-		Perl_warner(aTHX_ WARN_EXITING, "Exiting pseudo-block via %s", 
+		Perl_warner(aTHX_ WARN_EXITING, "Exiting pseudo-block via %s",
 			PL_op_name[PL_op->op_type]);
 	    return -1;
 	case CXt_LOOP:
@@ -1329,7 +1354,6 @@ S_dopoptoloop(pTHX_ I32 startingblock)
 void
 Perl_dounwind(pTHX_ I32 cxix)
 {
-    dTHR;
     register PERL_CONTEXT *cx;
     I32 optype;
 
@@ -1363,42 +1387,6 @@ Perl_dounwind(pTHX_ I32 cxix)
     }
 }
 
-/*
- * Closures mentioned at top level of eval cannot be referenced
- * again, and their presence indirectly causes a memory leak.
- * (Note that the fact that compcv and friends are still set here
- * is, AFAIK, an accident.)  --Chip
- *
- * XXX need to get comppad et al from eval's cv rather than
- * relying on the incidental global values.
- */
-STATIC void
-S_free_closures(pTHX)
-{
-    dTHR;
-    SV **svp = AvARRAY(PL_comppad_name);
-    I32 ix;
-    for (ix = AvFILLp(PL_comppad_name); ix >= 0; ix--) {
-	SV *sv = svp[ix];
-	if (sv && sv != &PL_sv_undef && *SvPVX(sv) == '&') {
-	    SvREFCNT_dec(sv);
-	    svp[ix] = &PL_sv_undef;
-
-	    sv = PL_curpad[ix];
-	    if (CvCLONE(sv)) {
-		SvREFCNT_dec(CvOUTSIDE(sv));
-		CvOUTSIDE(sv) = Nullcv;
-	    }
-	    else {
-		SvREFCNT_dec(sv);
-		sv = NEWSV(0,0);
-		SvPADTMP_on(sv);
-		PL_curpad[ix] = sv;
-	    }
-	}
-    }
-}
-
 void
 Perl_qerror(pTHX_ SV *err)
 {
@@ -1444,8 +1432,9 @@ Perl_die_where(pTHX_ char *message, STRLEN msglen)
 		    }
 		}
 	    }
-	    else
+	    else {
 		sv_setpvn(ERRSV, message, msglen);
+	    }
 	}
 	else
 	    message = SvPVx(ERRSV, msglen);
@@ -1513,7 +1502,7 @@ Perl_die_where(pTHX_ char *message, STRLEN msglen)
 
 PP(pp_xor)
 {
-    djSP; dPOPTOPssrl;
+    dSP; dPOPTOPssrl;
     if (SvTRUE(left) != SvTRUE(right))
 	RETSETYES;
     else
@@ -1522,7 +1511,7 @@ PP(pp_xor)
 
 PP(pp_andassign)
 {
-    djSP;
+    dSP;
     if (!SvTRUE(TOPs))
 	RETURN;
     else
@@ -1531,7 +1520,7 @@ PP(pp_andassign)
 
 PP(pp_orassign)
 {
-    djSP;
+    dSP;
     if (SvTRUE(TOPs))
 	RETURN;
     else
@@ -1540,7 +1529,7 @@ PP(pp_orassign)
 	
 PP(pp_caller)
 {
-    djSP;
+    dSP;
     register I32 cxix = dopoptosub(cxstack_ix);
     register PERL_CONTEXT *cx;
     register PERL_CONTEXT *ccstack = cxstack;
@@ -1668,10 +1657,10 @@ PP(pp_caller)
 	SV * mask ;
 	SV * old_warnings = cx->blk_oldcop->cop_warnings ;
 
-	if  (old_warnings == pWARN_NONE || 
+	if  (old_warnings == pWARN_NONE ||
 		(old_warnings == pWARN_STD && (PL_dowarn & G_WARN_ON) == 0))
             mask = newSVpvn(WARN_NONEstring, WARNsize) ;
-        else if (old_warnings == pWARN_ALL || 
+        else if (old_warnings == pWARN_ALL ||
 		  (old_warnings == pWARN_STD && PL_dowarn & G_WARN_ON))
             mask = newSVpvn(WARN_ALLstring, WARNsize) ;
         else
@@ -1683,7 +1672,7 @@ PP(pp_caller)
 
 PP(pp_reset)
 {
-    djSP;
+    dSP;
     char *tmps;
     STRLEN n_a;
 
@@ -1710,7 +1699,7 @@ PP(pp_dbstate)
 
     if (PL_op->op_private || SvIV(PL_DBsingle) || SvIV(PL_DBsignal) || SvIV(PL_DBtrace))
     {
-	djSP;
+	dSP;
 	register CV *cv;
 	register PERL_CONTEXT *cx;
 	I32 gimme = G_ARRAY;
@@ -1722,7 +1711,8 @@ PP(pp_dbstate)
 	if (!cv)
 	    DIE(aTHX_ "No DB::DB routine defined");
 
-	if (CvDEPTH(cv) >= 1 && !(PL_debug & (1<<30))) /* don't do recursive DB::DB call */
+	if (CvDEPTH(cv) >= 1 && !(PL_debug & DEBUG_DB_RECURSE_FLAG))
+	    /* don't do recursive DB::DB call */
 	    return NORMAL;
 
 	ENTER;
@@ -1754,7 +1744,7 @@ PP(pp_scope)
 
 PP(pp_enteriter)
 {
-    djSP; dMARK;
+    dSP; dMARK;
     register PERL_CONTEXT *cx;
     I32 gimme = GIMME_V;
     SV **svp;
@@ -1768,7 +1758,6 @@ PP(pp_enteriter)
 
 #ifdef USE_THREADS
     if (PL_op->op_flags & OPf_SPECIAL) {
-	dTHR;
 	svp = &THREADSV(PL_op->op_targ);	/* per-thread variable */
 	SAVEGENERICSV(*svp);
 	*svp = NEWSV(0,0);
@@ -1776,9 +1765,11 @@ PP(pp_enteriter)
     else
 #endif /* USE_THREADS */
     if (PL_op->op_targ) {
+#ifndef USE_ITHREADS
 	svp = &PL_curpad[PL_op->op_targ];		/* "my" variable */
 	SAVESPTR(*svp);
-#ifdef USE_ITHREADS
+#else
+	SAVEPADSV(PL_op->op_targ);
 	iterdata = (void*)PL_op->op_targ;
 	cxtype |= CXp_PADVAR;
 #endif
@@ -1832,7 +1823,7 @@ PP(pp_enteriter)
 
 PP(pp_enterloop)
 {
-    djSP;
+    dSP;
     register PERL_CONTEXT *cx;
     I32 gimme = GIMME_V;
 
@@ -1848,7 +1839,7 @@ PP(pp_enterloop)
 
 PP(pp_leaveloop)
 {
-    djSP;
+    dSP;
     register PERL_CONTEXT *cx;
     I32 gimme;
     SV **newsp;
@@ -1888,7 +1879,7 @@ PP(pp_leaveloop)
 
 PP(pp_return)
 {
-    djSP; dMARK;
+    dSP; dMARK;
     I32 cxix;
     register PERL_CONTEXT *cx;
     bool popsub2 = FALSE;
@@ -1928,8 +1919,6 @@ PP(pp_return)
 	POPEVAL(cx);
 	if (CxTRYBLOCK(cx))
 	    break;
-	if (AvFILLp(PL_comppad_name) >= 0)
-	    free_closures();
 	lex_end();
 	if (optype == OP_REQUIRE &&
 	    (MARK == SP || (gimme == G_SCALAR && !SvTRUE(*SP))) )
@@ -1999,7 +1988,7 @@ PP(pp_return)
 
 PP(pp_last)
 {
-    djSP;
+    dSP;
     I32 cxix;
     register PERL_CONTEXT *cx;
     I32 pop2 = 0;
@@ -2156,7 +2145,6 @@ S_dofindlabel(pTHX_ OP *o, char *label, OP **opstack, OP **oplimit)
     }
     *ops = 0;
     if (o->op_flags & OPf_KIDS) {
-	dTHR;
 	/* First try all the kids at this level, since that's likeliest. */
 	for (kid = cUNOPo->op_first; kid; kid = kid->op_sibling) {
 	    if ((kid->op_type == OP_NEXTSTATE || kid->op_type == OP_DBSTATE) &&
@@ -2187,7 +2175,7 @@ PP(pp_dump)
 
 PP(pp_goto)
 {
-    djSP;
+    dSP;
     OP *retop = 0;
     I32 ix;
     register PERL_CONTEXT *cx;
@@ -2238,7 +2226,7 @@ PP(pp_goto)
 	    if (cxix < cxstack_ix)
 		dounwind(cxix);
 	    TOPBLOCK(cx);
-	    if (CxTYPE(cx) == CXt_EVAL && cx->blk_eval.old_op_type == OP_ENTEREVAL) 
+	    if (CxREALEVAL(cx))
 		DIE(aTHX_ "Can't goto subroutine from an eval-string");
 	    mark = PL_stack_sp;
 	    if (CxTYPE(cx) == CXt_SUB && cx->blk_sub.hasargs) {
@@ -2306,7 +2294,7 @@ PP(pp_goto)
 
 		    PL_stack_sp--;		/* There is no cv arg. */
 		    /* Push a mark for the start of arglist */
-		    PUSHMARK(mark); 
+		    PUSHMARK(mark);
 		    (void)(*CvXSUB(cv))(aTHXo_ cv);
 		    /* Pop the current context like a decent sub should */
 		    POPBLOCK(cx, PL_curpm);
@@ -2380,14 +2368,14 @@ PP(pp_goto)
 #ifdef USE_THREADS
 		if (!cx->blk_sub.hasargs) {
 		    AV* av = (AV*)PL_curpad[0];
-		    
+		
 		    items = AvFILLp(av) + 1;
 		    if (items) {
 			/* Mark is at the end of the stack. */
 			EXTEND(SP, items);
 			Copy(AvARRAY(av), SP + 1, items, SV*);
 			SP += items;
-			PUTBACK ;		    
+			PUTBACK ;		
 		    }
 		}
 #endif /* USE_THREADS */		
@@ -2437,7 +2425,7 @@ PP(pp_goto)
 		     */
 		    SV *sv = GvSV(PL_DBsub);
 		    CV *gotocv;
-		    
+		
 		    if (PERLDB_SUB_NN) {
 			SvIVX(sv) = PTR2IV(cv); /* Already upgraded, saved */
 		    } else {
@@ -2469,6 +2457,8 @@ PP(pp_goto)
 
     if (label && *label) {
 	OP *gotoprobe = 0;
+	bool leaving_eval = FALSE;
+        PERL_CONTEXT *last_eval_cx = 0;
 
 	/* find label */
 
@@ -2478,8 +2468,15 @@ PP(pp_goto)
 	    cx = &cxstack[ix];
 	    switch (CxTYPE(cx)) {
 	    case CXt_EVAL:
-		gotoprobe = PL_eval_root; /* XXX not good for nested eval */
-		break;
+		leaving_eval = TRUE;
+                if (CxREALEVAL(cx)) {
+		    gotoprobe = (last_eval_cx ?
+				last_eval_cx->blk_eval.old_eval_root :
+				PL_eval_root);
+		    last_eval_cx = cx;
+		    break;
+                }
+                /* else fall through */
 	    case CXt_LOOP:
 		gotoprobe = cx->blk_oldcop->op_sibling;
 		break;
@@ -2517,6 +2514,17 @@ PP(pp_goto)
 	if (!retop)
 	    DIE(aTHX_ "Can't find label %s", label);
 
+	/* if we're leaving an eval, check before we pop any frames
+           that we're not going to punt, otherwise the error
+	   won't be caught */
+
+	if (leaving_eval && *enterops && enterops[1]) {
+	    I32 i;
+            for (i = 1; enterops[i]; i++)
+                if (enterops[i]->op_type == OP_ENTERITER)
+                    DIE(aTHX_ "Can't \"goto\" into the middle of a foreach loop");
+	}
+
 	/* pop unwanted frames */
 
 	if (ix < cxstack_ix) {
@@ -2564,7 +2572,7 @@ PP(pp_goto)
 
 PP(pp_exit)
 {
-    djSP;
+    dSP;
     I32 anum;
 
     if (MAXARG < 1)
@@ -2585,7 +2593,7 @@ PP(pp_exit)
 #ifdef NOTYET
 PP(pp_nswitch)
 {
-    djSP;
+    dSP;
     NV value = SvNVx(GvSV(cCOP->cop_gv));
     register I32 match = I_32(value);
 
@@ -2604,7 +2612,7 @@ PP(pp_nswitch)
 
 PP(pp_cswitch)
 {
-    djSP;
+    dSP;
     register I32 match;
 
     if (PL_multiline)
@@ -2667,7 +2675,6 @@ S_docatch_body(pTHX)
 STATIC OP *
 S_docatch(pTHX_ OP *o)
 {
-    dTHR;
     int ret;
     OP *oldop = PL_op;
     volatile PERL_SI *cursi = PL_curstackinfo;
@@ -2760,12 +2767,12 @@ Perl_sv_compile_2op(pTHX_ SV *sv, OP** startop, char *code, AV** avp)
 #else
     SAVEVPTR(PL_op);
 #endif
-    PL_hints = 0;
+    PL_hints &= HINT_UTF8;
 
     PL_op = &dummy;
     PL_op->op_type = OP_ENTEREVAL;
     PL_op->op_flags = 0;			/* Avoid uninit warning. */
-    PUSHBLOCK(cx, CXt_EVAL, SP);
+    PUSHBLOCK(cx, CXt_EVAL|(PL_curcop == &PL_compiling ? 0 : CXp_REAL), SP);
     PUSHEVAL(cx, 0, Nullgv);
     rop = doeval(G_SCALAR, startop);
     POPBLOCK(cx,PL_curpm);
@@ -2825,6 +2832,9 @@ S_doeval(pTHX_ int gimme, OP** startop)
     PL_compcv = (CV*)NEWSV(1104,0);
     sv_upgrade((SV *)PL_compcv, SVt_PVCV);
     CvEVAL_on(PL_compcv);
+    assert(CxTYPE(&cxstack[cxstack_ix]) == CXt_EVAL);
+    cxstack[cxstack_ix].blk_eval.cv = PL_compcv;
+
 #ifdef USE_THREADS
     CvOWNER(PL_compcv) = 0;
     New(666, CvMUTEXP(PL_compcv), 1, perl_mutex);
@@ -2856,7 +2866,7 @@ S_doeval(pTHX_ int gimme, OP** startop)
 	CvOUTSIDE(PL_compcv) = (CV*)SvREFCNT_inc(caller);
     }
 
-    SAVEFREESV(PL_compcv);
+    SAVEMORTALIZESV(PL_compcv);	/* must remain until end of current statement */
 
     /* make sure we compile in the right package */
 
@@ -3004,15 +3014,15 @@ S_doopen_pmc(pTHX_ const char *name, const char *mode)
 
 PP(pp_require)
 {
-    djSP;
+    dSP;
     register PERL_CONTEXT *cx;
     SV *sv;
     char *name;
     STRLEN len;
-    char *tryname;
+    char *tryname = Nullch;
     SV *namesv = Nullsv;
     SV** svp;
-    I32 gimme = G_SCALAR;
+    I32 gimme = GIMME_V;
     PerlIO *tryrsfp = 0;
     STRLEN n_a;
     int filter_has_file = 0;
@@ -3022,19 +3032,19 @@ PP(pp_require)
 
     sv = POPs;
     if (SvNIOKp(sv)) {
-	if (SvPOK(sv) && SvNOK(sv)) {		/* require v5.6.1 */
+	if (SvPOK(sv) && SvNOK(sv) && SvNV(sv)) {		/* require v5.6.1 */
 	    UV rev = 0, ver = 0, sver = 0;
 	    STRLEN len;
 	    U8 *s = (U8*)SvPVX(sv);
 	    U8 *end = (U8*)SvPVX(sv) + SvCUR(sv);
 	    if (s < end) {
-		rev = utf8_to_uv(s, end - s, &len, 0);
+		rev = utf8n_to_uvchr(s, end - s, &len, 0);
 		s += len;
 		if (s < end) {
-		    ver = utf8_to_uv(s, end - s, &len, 0);
+		    ver = utf8n_to_uvchr(s, end - s, &len, 0);
 		    s += len;
 		    if (s < end)
-			sver = utf8_to_uv(s, end - s, &len, 0);
+			sver = utf8n_to_uvchr(s, end - s, &len, 0);
 		}
 	    }
 	    if (PERL_REVISION < rev
@@ -3090,22 +3100,27 @@ PP(pp_require)
 
     /* prepare to compile file */
 
+#ifdef MACOS_TRADITIONAL
     if (PERL_FILE_IS_ABSOLUTE(name)
-	|| (*name == '.' && (name[1] == '/' ||
-			     (name[1] == '.' && name[2] == '/'))))
+	|| (*name == ':' && name[1] != ':' && strchr(name+2, ':')))
     {
 	tryname = name;
 	tryrsfp = doopen_pmc(name,PERL_SCRIPT_MODE);
-#ifdef MACOS_TRADITIONAL
 	/* We consider paths of the form :a:b ambiguous and interpret them first
 	   as global then as local
 	*/
-    	if (!tryrsfp && name[0] == ':' && name[1] != ':' && strchr(name+2, ':'))
+    	if (!tryrsfp && *name == ':' && name[1] != ':' && strchr(name+2, ':'))
 	    goto trylocal;
     }
-    else 
+    else
 trylocal: {
 #else
+    if (PERL_FILE_IS_ABSOLUTE(name)
+	|| (*name == '.' && (name[1] == '/' ||
+			     (name[1] == '.' && name[2] == '/'))))
+    {
+	tryname = name;
+	tryrsfp = doopen_pmc(name,PERL_SCRIPT_MODE);
     }
     else {
 #endif
@@ -3141,7 +3156,10 @@ trylocal: {
 		    PUSHs(dirsv);
 		    PUSHs(sv);
 		    PUTBACK;
-		    count = call_sv(loader, G_ARRAY);
+		    if (sv_isobject(loader))
+			count = call_method("INC", G_ARRAY);
+		    else
+			count = call_sv(loader, G_ARRAY);
 		    SPAGAIN;
 
 		    if (count > 0) {
@@ -3312,8 +3330,10 @@ trylocal: {
         PL_compiling.cop_warnings = pWARN_ALL ;
     else if (PL_dowarn & G_WARN_ALL_OFF)
         PL_compiling.cop_warnings = pWARN_NONE ;
-    else 
+    else
         PL_compiling.cop_warnings = pWARN_STD ;
+    SAVESPTR(PL_compiling.cop_io);
+    PL_compiling.cop_io = Nullsv;
 
     if (filter_sub || filter_child_proc) {
 	SV *datasv = filter_add(run_user_filter, Nullsv);
@@ -3340,7 +3360,7 @@ trylocal: {
     PL_eval_owner = thr;
     MUTEX_UNLOCK(&PL_eval_mutex);
 #endif /* USE_THREADS */
-    return DOCATCH(doeval(G_SCALAR, NULL));
+    return DOCATCH(doeval(gimme, NULL));
 }
 
 PP(pp_dofile)
@@ -3350,7 +3370,7 @@ PP(pp_dofile)
 
 PP(pp_entereval)
 {
-    djSP;
+    dSP;
     register PERL_CONTEXT *cx;
     dPOPss;
     I32 gimme = GIMME_V, was = PL_sub_generation;
@@ -3367,7 +3387,7 @@ PP(pp_entereval)
     ENTER;
     lex_start(sv);
     SAVETMPS;
- 
+
     /* switch to eval mode */
 
     if (PERLDB_NAMEEVAL && CopLINE(PL_curcop)) {
@@ -3399,6 +3419,13 @@ PP(pp_entereval)
         PL_compiling.cop_warnings = newSVsv(PL_curcop->cop_warnings);
         SAVEFREESV(PL_compiling.cop_warnings);
     }
+    SAVESPTR(PL_compiling.cop_io);
+    if (specialCopIO(PL_curcop->cop_io))
+        PL_compiling.cop_io = PL_curcop->cop_io;
+    else {
+        PL_compiling.cop_io = newSVsv(PL_curcop->cop_io);
+        SAVEFREESV(PL_compiling.cop_io);
+    }
 
     push_return(PL_op->op_next);
     PUSHBLOCK(cx, (CXt_EVAL|CXp_REAL), SP);
@@ -3427,7 +3454,7 @@ PP(pp_entereval)
 
 PP(pp_leaveeval)
 {
-    djSP;
+    dSP;
     register SV **mark;
     SV **newsp;
     PMOP *newpm;
@@ -3469,9 +3496,6 @@ PP(pp_leaveeval)
     }
     PL_curpm = newpm;	/* Don't pop $1 et al till now */
 
-    if (AvFILLp(PL_comppad_name) >= 0)
-	free_closures();
-
 #ifdef DEBUGGING
     assert(CvDEPTH(PL_compcv) == 1);
 #endif
@@ -3498,7 +3522,7 @@ PP(pp_leaveeval)
 
 PP(pp_entertry)
 {
-    djSP;
+    dSP;
     register PERL_CONTEXT *cx;
     I32 gimme = GIMME_V;
 
@@ -3508,7 +3532,6 @@ PP(pp_entertry)
     push_return(cLOGOP->op_other->op_next);
     PUSHBLOCK(cx, (CXt_EVAL|CXp_TRYBLOCK), SP);
     PUSHEVAL(cx, 0, 0);
-    PL_eval_root = PL_op;		/* Only needed so that goto works right. */
 
     PL_in_eval = EVAL_INEVAL;
     sv_setpv(ERRSV,"");
@@ -3518,7 +3541,7 @@ PP(pp_entertry)
 
 PP(pp_leavetry)
 {
-    djSP;
+    dSP;
     register SV **mark;
     SV **newsp;
     PMOP *newpm;
@@ -3569,20 +3592,20 @@ S_doparseform(pTHX_ SV *sv)
     STRLEN len;
     register char *s = SvPV_force(sv, len);
     register char *send = s + len;
-    register char *base;
+    register char *base = Nullch;
     register I32 skipspaces = 0;
-    bool noblank;
-    bool repeat;
+    bool noblank   = FALSE;
+    bool repeat    = FALSE;
     bool postspace = FALSE;
     U16 *fops;
     register U16 *fpc;
-    U16 *linepc;
+    U16 *linepc = 0;
     register I32 arg;
     bool ischop;
 
     if (len == 0)
 	Perl_croak(aTHX_ "Null picture in formline");
-    
+
     New(804, fops, (send - s)*3+10, U16);    /* Almost certainly too long... */
     fpc = fops;
 
@@ -3610,7 +3633,7 @@ S_doparseform(pTHX_ SV *sv)
 	case ' ': case '\t':
 	    skipspaces++;
 	    continue;
-	    
+	
 	case '\n': case 0:
 	    arg = s - base;
 	    skipspaces++;
@@ -3755,7 +3778,7 @@ S_doparseform(pTHX_ SV *sv)
     }
     Copy(fops, s, arg, U16);
     Safefree(fops);
-    sv_magic(sv, Nullsv, 'f', Nullch, 0);
+    sv_magic(sv, Nullsv, PERL_MAGIC_fm, Nullch, 0);
     SvCOMPILED_on(sv);
 }
 
@@ -3766,7 +3789,7 @@ S_doparseform(pTHX_ SV *sv)
  * Research Group at University of California, Berkeley.
  *
  * See also: "Optimistic Merge Sort" (SODA '92)
- *      
+ *
  * The integration to Perl is by John P. Linderman <jpl@research.att.com>.
  *
  * The code can be distributed under the same terms as Perl itself.
@@ -4136,7 +4159,6 @@ S_qsortsv(pTHX_ gptr *list1, size_t nmemb, SVCOMPARE_t cmp)
 static I32
 sortcv(pTHXo_ SV *a, SV *b)
 {
-    dTHR;
     I32 oldsaveix = PL_savestack_ix;
     I32 oldscopeix = PL_scopestack_ix;
     I32 result;
@@ -4160,7 +4182,6 @@ sortcv(pTHXo_ SV *a, SV *b)
 static I32
 sortcv_stacked(pTHXo_ SV *a, SV *b)
 {
-    dTHR;
     I32 oldsaveix = PL_savestack_ix;
     I32 oldscopeix = PL_scopestack_ix;
     I32 result;
@@ -4366,7 +4387,7 @@ run_user_filter(pTHXo_ int idx, SV *buf_sv, int maxlen)
     }
 
     if (filter_sub && len >= 0) {
-	djSP;
+	dSP;
 	int count;
 
 	ENTER;