[inseparable changes from patch from perl5.003_13 to perl5.003_14]

 CORE LANGUAGE CHANGES

Subject: Eliminate support for {if,unless,while,until} BLOCK BLOCK
From: Chip Salzenberg <chip@atlantic.net>
Files: perly.c perly.c.diff perly.y toke.c

Subject: Taint $x after $x =~ s/pat/xyz/ if pat or xyz is tainted by locale
From: Chip Salzenberg <chip@atlantic.net>
Files: cop.h mg.c pp_ctl.c pp_hot.c

Subject: Complete support for modifying undefined array members in foreach
From: Chip Salzenberg <chip@atlantic.net>
Files: global.sym mg.c perl.h pp.c pp_hot.c proto.h sv.c

 DOCUMENTATION

Subject: Update pod/Makefile; s/perli18n/perllocale/
From: Chip Salzenberg <chip@atlantic.net>
Files: ext/POSIX/POSIX.pod lib/I18N/Collate.pm pod/Makefile pod/perl.pod pod/perlmod.pod pod/perlnews.pod pod/roffitall

 OTHER CORE CHANGES

Subject: Bug in debugger with import manipulations
Date: Mon, 23 Dec 1996 05:37:48 -0500 (EST)
From: Ilya Zakharevich <ilya@math.ohio-state.edu>
Files: pp_hot.c

    Finally I traced why MakeMaker runs wrongly under debugger: debugger
    function calling sequence was assuming that
    	GvCV(CvGV(cv)) == cv
    for non-anonymous subs (ne END). MakeMaker managed to break it by
    	*A::B = \&C::D;
    	eval 'sub C::D {new one}';
    
    After this CvGV(\&A::B) is *C::D, but &{*C::D} is the "new one".
    
    Patch follows (note that in this case we do not sacrifice having a
    subroutine name in debugger output ;-).
    
    Enjoy,
    
    p5p-msgid: <199612231037.FAA08617@monk.mps.ohio-state.edu>

Subject: Import and dynamic methods
Date: Mon, 23 Dec 1996 01:45:37 -0500 (EST)
From: Ilya Zakharevich <ilya@math.ohio-state.edu>
Files: gv.c hv.c sv.c

    Here is the patch which corrects bad things which happens when you
    import subroutines and otherwise manipulate the symbol tree.
    
    I put forward the only chunk which may be controversal, since it may
    have a minor performance penalty. It is independent of the others, so
    it can be freely deleted.
    
    The manipulations which correctly propagate to method calls:
    	a) Pruning globs:		delete $B::{method}
    	b) Undefing subroutines:	undef &B::method;
    	c) Importing:			*B::method = \&mymethod;
    
    Enjoy,
    
    p5p-msgid: <199612230645.BAA08378@monk.mps.ohio-state.edu>

Subject: sv_gets patch
Date: Sun, 22 Dec 1996 03:24:04 -0500 (EST)
From: Ilya Zakharevich <ilya@math.ohio-state.edu>
Files: pp_hot.c

    I sent this patch before as a part of 
    	pos $str =
    	$str = /failing/g
    patch. Now I separate it in the case it was tainted by environment:
    
    Synopsis:
    	$a = <FH>;
    does not work as expected if $a is magic (say, tied).
    
    Enjoy,
    
    p5p-msgid: <199612220824.DAA07235@monk.mps.ohio-state.edu>

Subject: pos $str patch
Date: Sun, 22 Dec 1996 03:31:21 -0500 (EST)
From: Ilya Zakharevich <ilya@math.ohio-state.edu>
Files: mg.c pp_hot.c t/op/pat.t

    This patch was (mostly) posted already.
    
    It fixes the bug:
    	pos $str 
    is reset to undef if
    	$str =~ /failing/g
    fails.
    
    Additionally, if fixes the hidded bit (=MGf_MINMATCH) surviving
    setting 
    	pos $str = ...
    
    Enjoy,
    
    p5p-msgid: <199612220831.DAA07247@monk.mps.ohio-state.edu>

 PORTABILITY

Subject: Fix bugs in bincompat3 usage
From: Chip Salzenberg <chip@atlantic.net>
Files: perl.h perl_exp.SH

Subject: VMS patches to 5.003_13
Date: Mon, 23 Dec 1996 01:26:47 -0500 (EST)
From: Charles Bailey <bailey@HMIVAX.HUMGEN.UPENN.EDU>
Files: deb.c ext/POSIX/POSIX.xs gv.c lib/File/Copy.pm mg.c perl.c perl.h proto.h sv.c t/lib/filecopy.t taint.c toke.c util.c vms/Makefile vms/config.vms vms/descrip.mms vms/gen_shrfls.pl vms/genconfig.pl vms/genopt.com vms/perly_c.vms vms/perly_h.vms vms/test.com vms/vms.c vms/vms_yfix.pl

    private-msgid: <01IDBYYFYPIS002ASE@hmivax.humgen.upenn.edu>

 UTILITIES, LIBRARY, AND EXTENSIONS

Subject: Remove libnet
From: Chip Salzenberg <chip@atlantic.net>
Files: MANIFEST pod/perlmod.pod

Subject: Update IO->VERSION() to 1.1201 for CPAN's sake
From: Chip Salzenberg <chip@atlantic.net>
Files: ext/IO/lib/IO/Handle.pm lib/IO/Handle.pm

Subject: Remodel File::Copy.
From: Chip Salzenberg <chip@atlantic.net>
Files: lib/File/Copy.pm

1 files changed, 48 insertions, 21 deletions

diff --git a/mg.c b/mg.c
index d4c781ea71..0225ca45c1 100644
--- a/mg.c
+++ b/mg.c
@@ -27,9 +27,11 @@
 #endif
 
 #define TAINT_FROM_REGEX(sv,rx) \
-	if ((rx)->exec_tainted)	\
-	    SvTAINTED_on(sv);	\
-	else			\
+	if ((rx)->exec_tainted)	{	\
+	    TAINT;			\
+	    SvTAINTED_on(sv);		\
+	}				\
+	else				\
 	    SvTAINTED_off(sv);
 
 /*
@@ -287,10 +289,8 @@ MAGIC *mg;
 		(t = rx->endp[paren]))
 	    {
 		i = t - s;
-		if (i >= 0) {
-		    TAINT_IF(rx->exec_tainted);
+		if (i >= 0)
 		    return i;
-		}
 	    }
 	}
 	return 0;
@@ -308,10 +308,8 @@ MAGIC *mg;
 	if (curpm && (rx = curpm->op_pmregexp)) {
 	    if ((s = rx->subbeg)) {
 		i = rx->startp[0] - s;
-		if (i >= 0) {
-		    TAINT_IF(rx->exec_tainted);
+		if (i >= 0)
 		    return i;
-		}
 	    }
 	}
 	return 0;
@@ -1005,6 +1003,7 @@ MAGIC* mg;
     else if (pos > len)
 	pos = len;
     mg->mg_len = pos;
+    mg->mg_flags &= ~MGf_MINMATCH;
 
     return 0;
 }
@@ -1101,34 +1100,62 @@ MAGIC* mg;
 }
 
 int
-magic_setvivary(sv,mg)
+magic_getitervar(sv,mg)
 SV* sv;
 MAGIC* mg;
 {
+    SV *targ = Nullsv;
     if (LvTARGLEN(sv)) {
 	AV* av = (AV*)LvTARG(sv);
-	if (LvTARGOFF(sv) <= AvFILL(av)) {
-	    SV** svp = AvARRAY(av) + LvTARGOFF(sv);
-	    LvTARG(sv) = newSVsv(*svp);
-	    SvREFCNT_dec(*svp);
-	    *svp = SvREFCNT_inc(LvTARG(sv));
-	}
-	else
-	    LvTARG(sv) = Nullsv;
-	LvTARGLEN(sv) = 0;
-	SvREFCNT_dec(av);
+	if (LvTARGOFF(sv) <= AvFILL(av))
+	    targ = AvARRAY(av)[LvTARGOFF(sv)];
     }
+    else
+	targ = LvTARG(sv);
+    sv_setsv(sv, targ ? targ : &sv_undef);
+    return 0;
+}
+
+int
+magic_setitervar(sv,mg)
+SV* sv;
+MAGIC* mg;
+{
+    if (LvTARGLEN(sv))
+	vivify_itervar(sv);
     if (LvTARG(sv))
 	sv_setsv(LvTARG(sv), sv);
     return 0;
 }
 
 int
-magic_freevivary(sv,mg)
+magic_freeitervar(sv,mg)
 SV* sv;
 MAGIC* mg;
 {
     SvREFCNT_dec(LvTARG(sv));
+    return 0;
+}
+
+void
+vivify_itervar(sv)
+SV* sv;
+{
+    AV* av;
+
+    if (!LvTARGLEN(sv))
+	return;
+    av = (AV*)LvTARG(sv);
+    if (LvTARGOFF(sv) <= AvFILL(av)) {
+	SV** svp = AvARRAY(av) + LvTARGOFF(sv);
+	LvTARG(sv) = newSVsv(*svp);
+	SvREFCNT_dec(*svp);
+	*svp = SvREFCNT_inc(LvTARG(sv));
+    }
+    else
+	LvTARG(sv) = Nullsv;
+    SvREFCNT_dec(av);
+    LvTARGLEN(sv) = 0;
 }
 
 int