X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=blobdiff_plain;f=mg.c;h=f97c6cedb07aacf4efacdd13e4b6123db746ab7e;hb=1725693fac4322554ed5d17f384f2502ef67bf23;hp=721cfb9c34b7553113338f847ed6cea679cffe4e;hpb=ed79a026b5aec9cc3f786c2971aa15a4b21f396c;p=p5sagit%2Fp5-mst-13.2.git

diff --git a/mg.c b/mg.c
index 721cfb9..f97c6ce 100644
--- a/mg.c
+++ b/mg.c
@@ -16,11 +16,6 @@
 #define PERL_IN_MG_C
 #include "perl.h"
 
-/* XXX If this causes problems, set i_unistd=undef in the hint file.  */
-#ifdef I_UNISTD
-# include <unistd.h>
-#endif
-
 #if defined(HAS_GETGROUPS) || defined(HAS_SETGROUPS)
 #  ifndef NGROUPS
 #    define NGROUPS 32
@@ -44,7 +39,6 @@ struct magic_state {
 STATIC void
 S_save_magic(pTHX_ I32 mgs_ix, SV *sv)
 {
-    dTHR;
     MGS* mgs;
     assert(SvMAGICAL(sv));
 
@@ -96,7 +90,6 @@ Do magic after a value is retrieved from the SV.  See C<sv_magic>.
 int
 Perl_mg_get(pTHX_ SV *sv)
 {
-    dTHR;
     I32 mgs_ix;
     MAGIC* mg;
     MAGIC** mgp;
@@ -139,7 +132,6 @@ Do magic after a value is assigned to the SV.  See C<sv_magic>.
 int
 Perl_mg_set(pTHX_ SV *sv)
 {
-    dTHR;
     I32 mgs_ix;
     MAGIC* mg;
     MAGIC* nextmg;
@@ -200,7 +192,7 @@ Perl_mg_size(pTHX_ SV *sv)
 {
     MAGIC* mg;
     I32 len;
-    
+
     for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) {
 	MGVTBL* vtbl = mg->mg_virtual;
 	if (vtbl && vtbl->svt_len) {
@@ -339,7 +331,6 @@ Perl_mg_free(pTHX_ SV *sv)
 U32
 Perl_magic_regdata_cnt(pTHX_ SV *sv, MAGIC *mg)
 {
-    dTHR;
     register REGEXP *rx;
 
     if (PL_curpm && (rx = PL_curpm->op_pmregexp)) {
@@ -348,14 +339,13 @@ Perl_magic_regdata_cnt(pTHX_ SV *sv, MAGIC *mg)
 	else			/* @- */
 	    return rx->lastparen;
     }
-    
+
     return (U32)-1;
 }
 
 int
 Perl_magic_regdatum_get(pTHX_ SV *sv, MAGIC *mg)
 {
-    dTHR;
     register I32 paren;
     register I32 s;
     register I32 i;
@@ -383,7 +373,6 @@ Perl_magic_regdatum_get(pTHX_ SV *sv, MAGIC *mg)
 int
 Perl_magic_regdatum_set(pTHX_ SV *sv, MAGIC *mg)
 {
-    dTHR;
     Perl_croak(aTHX_ PL_no_modify);
     /* NOT REACHED */
     return 0;
@@ -392,7 +381,6 @@ Perl_magic_regdatum_set(pTHX_ SV *sv, MAGIC *mg)
 U32
 Perl_magic_len(pTHX_ SV *sv, MAGIC *mg)
 {
-    dTHR;
     register I32 paren;
     register I32 i;
     register REGEXP *rx;
@@ -456,10 +444,6 @@ Perl_magic_len(pTHX_ SV *sv, MAGIC *mg)
 	    }
 	}
 	return 0;
-    case ',':
-	return (STRLEN)PL_ofslen;
-    case '\\':
-	return (STRLEN)PL_orslen;
     }
     magic_get(sv,mg);
     if (!SvPOK(sv) && SvNIOK(sv)) {
@@ -474,7 +458,6 @@ Perl_magic_len(pTHX_ SV *sv, MAGIC *mg)
 int
 Perl_magic_get(pTHX_ SV *sv, MAGIC *mg)
 {
-    dTHR;
     register I32 paren;
     register char *s;
     register I32 i;
@@ -498,7 +481,7 @@ Perl_magic_get(pTHX_ SV *sv, MAGIC *mg)
 #ifdef MACOS_TRADITIONAL
 	{
 	    char msg[256];
-	    
+	
 	    sv_setnv(sv,(double)gMacPerl_OSErr);
 	    sv_setpv(sv, gMacPerl_OSErr ? GetSysErrText(gMacPerl_OSErr, msg) : "");	
 	}
@@ -563,15 +546,22 @@ Perl_magic_get(pTHX_ SV *sv, MAGIC *mg)
 	else
 	    sv_setsv(sv, &PL_sv_undef);
 	break;
-    case '\017':		/* ^O */
-	sv_setpv(sv, PL_osname);
+    case '\017':		/* ^O & ^OPEN */
+	if (*(mg->mg_ptr+1) == '\0')
+	    sv_setpv(sv, PL_osname);
+	else if (strEQ(mg->mg_ptr, "\017PEN")) {
+	    if (!PL_compiling.cop_io)
+		sv_setsv(sv, &PL_sv_undef);
+            else {
+	        sv_setsv(sv, PL_compiling.cop_io);
+	    }
+	}
 	break;
     case '\020':		/* ^P */
 	sv_setiv(sv, (IV)PL_perldb);
 	break;
     case '\023':		/* ^S */
 	{
-	    dTHR;
 	    if (PL_lex_state != LEX_NOTPARSING)
 		(void)SvOK_off(sv);
 	    else if (PL_in_eval)
@@ -596,10 +586,10 @@ Perl_magic_get(pTHX_ SV *sv, MAGIC *mg)
             }
             else if (PL_compiling.cop_warnings == pWARN_ALL) {
 	        sv_setpvn(sv, WARN_ALLstring, WARNsize) ;
-	    }    
+	    }
             else {
 	        sv_setsv(sv, PL_compiling.cop_warnings);
-	    }    
+	    }
 	    SvPOK_only(sv);
 	}
 	else if (strEQ(mg->mg_ptr, "\027IDE_SYSTEM_CALLS"))
@@ -725,10 +715,8 @@ Perl_magic_get(pTHX_ SV *sv, MAGIC *mg)
 	sv_setiv(sv, (IV)(IoFLAGS(GvIOp(PL_defoutgv)) & IOf_FLUSH) != 0 );
 	break;
     case ',':
-	sv_setpvn(sv,PL_ofs,PL_ofslen);
 	break;
     case '\\':
-	sv_setpvn(sv,PL_ors,PL_orslen);
 	break;
     case '#':
 	sv_setpv(sv,PL_ofmt);
@@ -895,7 +883,6 @@ Perl_magic_set_all_env(pTHX_ SV *sv, MAGIC *mg)
 #if defined(VMS)
     Perl_die(aTHX_ "Can't make list assignment to %%ENV on this system");
 #else
-    dTHR;
     if (PL_localizing) {
 	HE* entry;
 	STRLEN n_a;
@@ -936,11 +923,6 @@ Perl_magic_clear_all_env(pTHX_ SV *sv, MAGIC *mg)
 	    cur += len+1;
     }
     FreeEnvironmentStrings(envv);
-#   else
-#	ifdef __CYGWIN__
-    I32 i;
-    for (i = 0; environ[i]; i++)
-       safesysfree(environ[i]);
 #	else
 #	    ifndef PERL_USE_SAFE_PUTENV
     I32 i;
@@ -951,7 +933,6 @@ Perl_magic_clear_all_env(pTHX_ SV *sv, MAGIC *mg)
 	for (i = 0; environ[i]; i++)
 	    safesysfree(environ[i]);
 #	    endif /* PERL_USE_SAFE_PUTENV */
-#	endif /* __CYGWIN__ */
 
     environ[0] = Nullch;
 
@@ -1009,7 +990,6 @@ Perl_magic_clearsig(pTHX_ SV *sv, MAGIC *mg)
 int
 Perl_magic_setsig(pTHX_ SV *sv, MAGIC *mg)
 {
-    dTHR;
     register char *s;
     I32 i;
     SV** svp;
@@ -1126,7 +1106,7 @@ Perl_magic_setnkeys(pTHX_ SV *sv, MAGIC *mg)
 	hv_ksplit((HV*)LvTARG(sv), SvIV(sv));
     }
     return 0;
-}          
+}
 
 /* caller is responsible for stack switching/cleanup */
 STATIC int
@@ -1137,7 +1117,7 @@ S_magic_methcall(pTHX_ SV *sv, MAGIC *mg, char *meth, I32 flags, int n, SV *val)
     PUSHMARK(SP);
     EXTEND(SP, n);
     PUSHs(SvTIED_obj(sv, mg));
-    if (n > 1) { 
+    if (n > 1) {
 	if (mg->mg_ptr) {
 	    if (mg->mg_len >= 0)
 		PUSHs(sv_2mortal(newSVpvn(mg->mg_ptr, mg->mg_len)));
@@ -1205,7 +1185,7 @@ Perl_magic_clearpack(pTHX_ SV *sv, MAGIC *mg)
 
 U32
 Perl_magic_sizepack(pTHX_ SV *sv, MAGIC *mg)
-{         
+{
     dSP;
     U32 retval = 0;
 
@@ -1267,12 +1247,11 @@ int
 Perl_magic_existspack(pTHX_ SV *sv, MAGIC *mg)
 {
     return magic_methpack(sv,mg,"EXISTS");
-} 
+}
 
 int
 Perl_magic_setdbline(pTHX_ SV *sv, MAGIC *mg)
 {
-    dTHR;
     OP *o;
     I32 i;
     GV* gv;
@@ -1291,7 +1270,6 @@ Perl_magic_setdbline(pTHX_ SV *sv, MAGIC *mg)
 int
 Perl_magic_getarylen(pTHX_ SV *sv, MAGIC *mg)
 {
-    dTHR;
     sv_setiv(sv, AvFILL((AV*)mg->mg_obj) + PL_curcop->cop_arybase);
     return 0;
 }
@@ -1299,7 +1277,6 @@ Perl_magic_getarylen(pTHX_ SV *sv, MAGIC *mg)
 int
 Perl_magic_setarylen(pTHX_ SV *sv, MAGIC *mg)
 {
-    dTHR;
     av_fill((AV*)mg->mg_obj, SvIV(sv) - PL_curcop->cop_arybase);
     return 0;
 }
@@ -1308,11 +1285,10 @@ int
 Perl_magic_getpos(pTHX_ SV *sv, MAGIC *mg)
 {
     SV* lsv = LvTARG(sv);
-    
+
     if (SvTYPE(lsv) >= SVt_PVMG && SvMAGIC(lsv)) {
 	mg = mg_find(lsv, 'g');
 	if (mg && mg->mg_len >= 0) {
-	    dTHR;
 	    I32 i = mg->mg_len;
 	    if (DO_UTF8(lsv))
 		sv_pos_b2u(lsv, &i);
@@ -1331,10 +1307,9 @@ Perl_magic_setpos(pTHX_ SV *sv, MAGIC *mg)
     SSize_t pos;
     STRLEN len;
     STRLEN ulen = 0;
-    dTHR;
 
     mg = 0;
-    
+
     if (SvTYPE(lsv) >= SVt_PVMG && SvMAGIC(lsv))
 	mg = mg_find(lsv, 'g');
     if (!mg) {
@@ -1425,6 +1400,8 @@ Perl_magic_getsubstr(pTHX_ SV *sv, MAGIC *mg)
     if (rem + offs > len)
 	rem = len - offs;
     sv_setpvn(sv, tmps + offs, (STRLEN)rem);
+    if (DO_UTF8(lsv))
+        SvUTF8_on(sv);
     return 0;
 }
 
@@ -1440,7 +1417,6 @@ Perl_magic_setsubstr(pTHX_ SV *sv, MAGIC *mg)
 int
 Perl_magic_gettaint(pTHX_ SV *sv, MAGIC *mg)
 {
-    dTHR;
     TAINT_IF((mg->mg_len & 1) ||
 	     ((mg->mg_len & 2) && mg->mg_obj == sv));	/* kludge */
     return 0;
@@ -1449,7 +1425,6 @@ Perl_magic_gettaint(pTHX_ SV *sv, MAGIC *mg)
 int
 Perl_magic_settaint(pTHX_ SV *sv, MAGIC *mg)
 {
-    dTHR;
     if (PL_localizing) {
 	if (PL_localizing == 1)
 	    mg->mg_len <<= 1;
@@ -1508,7 +1483,6 @@ Perl_magic_getdefelem(pTHX_ SV *sv, MAGIC *mg)
 		targ = AvARRAY(av)[LvTARGOFF(sv)];
 	}
 	if (targ && targ != &PL_sv_undef) {
-	    dTHR;		/* just for SvREFCNT_dec */
 	    /* somebody else defined it for us */
 	    SvREFCNT_dec(LvTARG(sv));
 	    LvTARG(sv) = SvREFCNT_inc(targ);
@@ -1539,7 +1513,6 @@ Perl_magic_setdefelem(pTHX_ SV *sv, MAGIC *mg)
 void
 Perl_vivify_defelem(pTHX_ SV *sv)
 {
-    dTHR;			/* just for SvREFCNT_inc and SvREFCNT_dec*/
     MAGIC *mg;
     SV *value = Nullsv;
 
@@ -1663,7 +1636,6 @@ Perl_magic_setcollxfrm(pTHX_ SV *sv, MAGIC *mg)
 int
 Perl_magic_set(pTHX_ SV *sv, MAGIC *mg)
 {
-    dTHR;
     register char *s;
     I32 i;
     STRLEN len;
@@ -1712,12 +1684,20 @@ Perl_magic_set(pTHX_ SV *sv, MAGIC *mg)
 	    PL_inplace = Nullch;
 	break;
     case '\017':	/* ^O */
-	if (PL_osname)
-	    Safefree(PL_osname);
-	if (SvOK(sv))
-	    PL_osname = savepv(SvPV(sv,len));
-	else
-	    PL_osname = Nullch;
+	if (*(mg->mg_ptr+1) == '\0') {
+	    if (PL_osname)
+		Safefree(PL_osname);
+	    if (SvOK(sv))
+		PL_osname = savepv(SvPV(sv,len));
+	    else
+		PL_osname = Nullch;
+	}
+	else if (strEQ(mg->mg_ptr, "\017PEN")) {
+	    if (!PL_compiling.cop_io)
+		PL_compiling.cop_io = newSVsv(sv);
+	    else
+		sv_setsv(PL_compiling.cop_io,sv);
+	}
 	break;
     case '\020':	/* ^P */
 	PL_perldb = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv);
@@ -1735,7 +1715,7 @@ Perl_magic_set(pTHX_ SV *sv, MAGIC *mg)
 	if (*(mg->mg_ptr+1) == '\0') {
 	    if ( ! (PL_dowarn & G_WARN_ALL_MASK)) {
 	        i = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv);
-	        PL_dowarn = (PL_dowarn & ~G_WARN_ON) 
+	        PL_dowarn = (PL_dowarn & ~G_WARN_ON)
 		    		| (i ? G_WARN_ON : G_WARN_OFF) ;
 	    }
 	}
@@ -1831,21 +1811,24 @@ Perl_magic_set(pTHX_ SV *sv, MAGIC *mg)
 	PL_rs = SvREFCNT_inc(PL_nrs);
 	break;
     case '\\':
-	if (PL_ors)
-	    Safefree(PL_ors);
+	if (PL_ors_sv)
+	    SvREFCNT_dec(PL_ors_sv);
 	if (SvOK(sv) || SvGMAGICAL(sv)) {
-	    s = SvPV(sv,PL_orslen);
-	    PL_ors = savepvn(s,PL_orslen);
+	    PL_ors_sv = newSVsv(sv);
 	}
 	else {
-	    PL_ors = Nullch;
-	    PL_orslen = 0;
+	    PL_ors_sv = Nullsv;
 	}
 	break;
     case ',':
-	if (PL_ofs)
-	    Safefree(PL_ofs);
-	PL_ofs = savepv(SvPV(sv, PL_ofslen));
+	if (PL_ofs_sv)
+	    SvREFCNT_dec(PL_ofs_sv);
+	if (SvOK(sv) || SvGMAGICAL(sv)) {
+	    PL_ofs_sv = newSVsv(sv);
+	}
+	else {
+	    PL_ofs_sv = Nullsv;
+	}
 	break;
     case '#':
 	if (PL_ofmt)
@@ -2041,7 +2024,7 @@ Perl_magic_set(pTHX_ SV *sv, MAGIC *mg)
 		if (PL_origargv[i] == s + 1
 #ifdef OS2
 		    || PL_origargv[i] == s + 2
-#endif 
+#endif
 		   )
 		{
 		    ++s;
@@ -2054,7 +2037,7 @@ Perl_magic_set(pTHX_ SV *sv, MAGIC *mg)
 	    if (PL_origenviron && (PL_origenviron[0] == s + 1
 #ifdef OS2
 				|| (PL_origenviron[0] == s + 9 && (s += 8))
-#endif 
+#endif
 	       )) {
 		my_setenv("NoNe  SuCh", Nullch);
 					    /* force copy of environment */
@@ -2103,7 +2086,6 @@ Perl_magic_set(pTHX_ SV *sv, MAGIC *mg)
 int
 Perl_magic_mutexfree(pTHX_ SV *sv, MAGIC *mg)
 {
-    dTHR;
     DEBUG_S(PerlIO_printf(Perl_debug_log,
 			  "0x%"UVxf": magic_mutexfree 0x%"UVxf"\n",
 			  PTR2UV(thr), PTR2UV(sv));)
@@ -2157,7 +2139,7 @@ Perl_sighandler(int sig)
 #if defined(WIN32) && defined(PERL_IMPLICIT_CONTEXT)
     PERL_SET_THX(aTHXo);	/* fake TLS, see above */
 #endif
-    
+
     if (PL_savestack_ix + 15 <= PL_savestack_max)
 	flags |= 1;
     if (PL_markstack_ptr < PL_markstack_max - 2)
@@ -2178,7 +2160,7 @@ Perl_sighandler(int sig)
 	o_save_i = PL_savestack_ix;
 	SAVEDESTRUCTOR_X(unwind_handler_stack, (void*)&flags);
     }
-    if (flags & 4) 
+    if (flags & 4)
 	PL_markstack_ptr++;		/* Protect mark. */
     if (flags & 8) {
 	PL_retstack_ix++;
@@ -2187,7 +2169,7 @@ Perl_sighandler(int sig)
     if (flags & 16)
 	PL_scopestack_ix += 1;
     /* sv_2cv is too complicated, try a simpler variant first: */
-    if (!SvROK(PL_psig_ptr[sig]) || !(cv = (CV*)SvRV(PL_psig_ptr[sig])) 
+    if (!SvROK(PL_psig_ptr[sig]) || !(cv = (CV*)SvRV(PL_psig_ptr[sig]))
 	|| SvTYPE(cv) != SVt_PVCV)
 	cv = sv_2cv(PL_psig_ptr[sig],&st,&gv,TRUE);
 
@@ -2221,16 +2203,16 @@ Perl_sighandler(int sig)
 cleanup:
     if (flags & 1)
 	PL_savestack_ix -= 8; /* Unprotect save in progress. */
-    if (flags & 4) 
+    if (flags & 4)
 	PL_markstack_ptr--;
-    if (flags & 8) 
+    if (flags & 8)
 	PL_retstack_ix--;
     if (flags & 16)
 	PL_scopestack_ix -= 1;
     if (flags & 64)
 	SvREFCNT_dec(sv);
     PL_op = myop;			/* Apparently not needed... */
-    
+
     PL_Sv = tSv;			/* Restore global temporaries. */
     PL_Xpv = tXpv;
     return;
@@ -2244,7 +2226,6 @@ cleanup:
 static void
 restore_magic(pTHXo_ void *p)
 {
-    dTHR;
     MGS* mgs = SSPTR(PTR2IV(p), MGS*);
     SV* sv = mgs->mgs_sv;
 
@@ -2286,7 +2267,6 @@ restore_magic(pTHXo_ void *p)
 static void
 unwind_handler_stack(pTHXo_ void *p)
 {
-    dTHR;
     U32 flags = *(U32*)p;
 
     if (flags & 1)