X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=blobdiff_plain;f=regcomp.pl;h=febd5505521923dbcfad170f815c2d429c936ebc;hb=b2a156bd8e464af88881c77344280160fd844dcf;hp=6ae847882d49aa0217a3c77f91acf6c5eab46f6b;hpb=22d4bb9ccb8701e68f9243547d7e3a3c55f70908;p=p5sagit%2Fp5-mst-13.2.git

diff --git a/regcomp.pl b/regcomp.pl
index 6ae8478..febd550 100644
--- a/regcomp.pl
+++ b/regcomp.pl
@@ -1,3 +1,7 @@
+BEGIN {
+    # Get function prototypes
+    require 'regen_lib.pl';
+}
 #use Fatal qw(open close rename chmod unlink);
 open DESC, 'regcomp.sym';
 $ind = 0;
@@ -12,15 +16,19 @@ while (<DESC>) {
 }
 close DESC;
 $tot = $ind;
+die "Too many regexp opcodes! Maximum is 256, but there are $tot in file!"
+    if $tot>256;
 
 $tmp_h = 'tmp_reg.h';
 
 unlink $tmp_h if -f $tmp_h;
 
 open OUT, ">$tmp_h";
+binmode OUT;
 
 print OUT <<EOP;
-/* !!!!!!!   DO NOT EDIT THIS FILE   !!!!!!!
+/* -*- buffer-read-only: t -*-
+   !!!!!!!   DO NOT EDIT THIS FILE   !!!!!!!
    This file is built by regcomp.pl from regcomp.sym.
    Any changes made here will be lost!
 */
@@ -37,6 +45,7 @@ EOP
 }
 
 print OUT <<EOP;
+#define REGNODE_MAX $oind
 
 #ifndef DOINIT
 EXTCONST U8 PL_regkind[];
@@ -110,10 +119,9 @@ static const int reg_num = $tot;
 #endif /* DEBUGGING */
 #endif /* REG_COMP_C */
 
+/* ex: set ro: */
 EOP
 
-close OUT;
+close OUT or die "close $tmp_h: $!";
 
-chmod 0666, 'regnodes.h';
-unlink 'regnodes.h';
-rename $tmp_h, 'regnodes.h';
+safer_rename $tmp_h, 'regnodes.h';