Upgrade Unicode::Collate from version 1.04 to 1.07

[perl5.git] / regen_perly.pl

diff --git a/regen_perly.pl b/regen_perly.pl
index 124b031..b962756 100644 (file)
--- a/regen_perly.pl
+++ b/regen_perly.pl
@@ -73,16 +73,21 @@ unless ($version) { die <<EOF; }
 Could not find a version of bison in your path. Please install bison.
 EOF
 
-unless ($version =~ /\b(1\.875[a-z]?|2\.[01345])\b/) { die <<EOF; }
+# Don't change this to add new bison versions without testing that the generated
+# files actually work :-) Win32 in particular may not like them. :-(
+unless ($version =~ /\b(1\.875[a-z]?|2\.[0134567])\b/) { die <<EOF; }
 
 You have the wrong version of bison in your path; currently 1.875
-2.0, 2.1, 2.3, 2.4 or 2.5 is required.  Try installing
+2.0, 2.1, 2.3, 2.4, 2.5, 2.6 or 2.7 is required.  Try installing
     http://ftp.gnu.org/gnu/bison/bison-2.5.1.tar.gz
 or similar.  Your bison identifies itself as:
 
 $version
 EOF
 
+# bison's version number, not the entire string, is most useful later on.
+$version = $1;
+
 # creates $tmpc_file and $tmph_file
 my_system("$bison -d -o $tmpc_file $y_file");
 
@@ -116,9 +121,13 @@ open my $tmph_fh, '<', $tmph_file or die "Can't open $tmph_file: $!\n";
 
 my $endcore_done = 0;
 # Token macros need to be generated manually from bison 2.4 on
-my $gather_tokens = ($version =~ /\b2\.[45]\b/ ? undef : 0);
+my $gather_tokens = $version >= 2.4 ? undef : 0;
 my $tokens;
 while (<$tmph_fh>) {
+    # bison 2.6 adds header guards, which break things because of where we
+    # insert #ifdef PERL_CORE, so strip them because they aren't important
+    next if /YY_PERLYTMP_H/;
+
     print $h_fh "#ifdef PERL_CORE\n" if $. == 1;
     if (!$endcore_done and /YYSTYPE_IS_DECLARED/) {
        print $h_fh <<h;
@@ -302,7 +311,7 @@ sub make_type_tab {
                { "toketype_" .
                    (defined $tokens{$1} ? $tokens{$1} : $default_token)
                }ge;
-    $fields =~ s/, \s* 0 \s* $//x
+    $fields =~ s/, \s* (?:0|YY_NULL) \s* $//x
        or die "make_type_tab: couldn't delete trailing ',0'\n";
 
     return