[perl #56880] Allow v10 as a label or package name

diff --git a/t/base/lex.t b/t/base/lex.t
index bca43b4..b1c4a09 100644 (file)
--- a/t/base/lex.t
+++ b/t/base/lex.t
@@ -1,6 +1,6 @@
 #!./perl
 
-print "1..81\n";
+print "1..85\n";
 
 $x = 'x';
 
@@ -380,3 +380,23 @@ for(qw< require goto last next redo dump >) {
     print "ok ", $test++, " - [perl #105924] $_ WORD << ...\n";
     print "# $@" if $@;
 }
+
+# http://rt.perl.org/rt3/Ticket/Display.html?id=56880
+my $counter = 0;
+eval 'v23: $counter++; goto v23 unless $counter == 2';
+print "not " unless $counter == 2;
+print "ok 82 - Use v[0-9]+ as a label\n";
+$counter = 0;
+eval 'v23 : $counter++; goto v23 unless $counter == 2';
+print "not " unless $counter == 2;
+print "ok 83 - Use v[0-9]+ as a label with space before colon\n";
+ 
+my $output = "";
+eval "package v10::foo; sub test2 { return 'v10::foo' }
+      package v10; sub test { return v10::foo::test2(); }
+      package main; \$output = v10::test(); "; 
+print "not " unless $output eq 'v10::foo';
+print "ok 84 - call a function in package v10::foo\n";
+
+print "not " unless (1?v65:"bar") eq 'A';
+print "ok 85 - colon detection after vstring does not break ? vstring :\n";

diff --git a/toke.c b/toke.c
index d225514..e9a06eb 100644 (file)
--- a/toke.c
+++ b/toke.c
@@ -6553,8 +6553,16 @@ Perl_yylex(pTHX)
                s = scan_num(s, &pl_yylval);
                TERM(THING);
            }
+           else if ((*start == ':' && start[1] == ':')
+                 || (PL_expect == XSTATE && *start == ':'))
+               goto keylookup;
+           else if (PL_expect == XSTATE) {
+               d = start;
+               while (d < PL_bufend && isSPACE(*d)) d++;
+               if (*d == ':') goto keylookup;
+           }
            /* avoid v123abc() or $h{v1}, allow C<print v10;> */
-           else if (!isALPHA(*start) && (PL_expect == XTERM
+           if (!isALPHA(*start) && (PL_expect == XTERM
                        || PL_expect == XREF || PL_expect == XSTATE
                        || PL_expect == XTERMORDORDOR)) {
                GV *const gv = gv_fetchpvn_flags(s, start - s,