--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/dep.pl	Wed Mar 08 13:16:18 2006 +0000
@@ -0,0 +1,123 @@
+#!/usr/bin/perl 
+#
+# Walk through source, add labels and make classes
+#
+#use strict;
+
+my %deplist;
+
+#open class file and write preamble 
+open(CLASS, ">tommath_class.h") or die "Couldn't open tommath_class.h for writing\n";
+print CLASS "#if !(defined(LTM1) && defined(LTM2) && defined(LTM3))\n#if defined(LTM2)\n#define LTM3\n#endif\n#if defined(LTM1)\n#define LTM2\n#endif\n#define LTM1\n\n#if defined(LTM_ALL)\n";
+
+foreach my $filename (glob "bn*.c") {
+   my $define = $filename;
+
+print "Processing $filename\n";
+
+   # convert filename to upper case so we can use it as a define 
+   $define =~ tr/[a-z]/[A-Z]/;
+   $define =~ tr/\./_/;
+   print CLASS "#define $define\n";
+
+   # now copy text and apply #ifdef as required 
+   my $apply = 0;
+   open(SRC, "<$filename");
+   open(OUT, ">tmp");
+
+   # first line will be the #ifdef
+   my $line = <SRC>;
+   if ($line =~ /include/) {
+      print OUT $line;
+   } else {
+      print OUT "#include <tommath.h>\n#ifdef $define\n$line";
+      $apply = 1;
+   }
+   while (<SRC>) {
+      if (!($_ =~ /tommath\.h/)) {
+         print OUT $_;
+      }
+   }
+   if ($apply == 1) {
+      print OUT "#endif\n";
+   }
+   close SRC;
+   close OUT;
+
+   unlink($filename);
+   rename("tmp", $filename);
+}
+print CLASS "#endif\n\n";
+
+# now do classes 
+
+foreach my $filename (glob "bn*.c") {
+   open(SRC, "<$filename") or die "Can't open source file!\n"; 
+
+   # convert filename to upper case so we can use it as a define 
+   $filename =~ tr/[a-z]/[A-Z]/;
+   $filename =~ tr/\./_/;
+
+   print CLASS "#if defined($filename)\n";
+   my $list = $filename;
+
+   # scan for mp_* and make classes
+   while (<SRC>) {
+      my $line = $_;
+      while ($line =~ m/(fast_)*(s_)*mp\_[a-z_0-9]*/) {
+          $line = $';
+          # now $& is the match, we want to skip over LTM keywords like
+          # mp_int, mp_word, mp_digit
+          if (!($& eq "mp_digit") && !($& eq "mp_word") && !($& eq "mp_int")) {
+             my $a = $&;
+             $a =~ tr/[a-z]/[A-Z]/;
+             $a = "BN_" . $a . "_C";
+             if (!($list =~ /$a/)) {
+                print CLASS "   #define $a\n";
+             }
+             $list = $list . "," . $a;
+          }
+      }
+   }
+   @deplist{$filename} = $list;
+
+   print CLASS "#endif\n\n";
+   close SRC;
+}
+
+print CLASS "#ifdef LTM3\n#define LTM_LAST\n#endif\n#include <tommath_superclass.h>\n#include <tommath_class.h>\n#else\n#define LTM_LAST\n#endif\n";
+close CLASS;
+
+#now let's make a cool call graph... 
+
+open(OUT,">callgraph.txt");
+$indent = 0;
+foreach (keys %deplist) {
+   $list = "";
+   draw_func(@deplist{$_});
+   print OUT "\n\n";
+}
+close(OUT);
+
+sub draw_func()
+{
+   my @funcs = split(",", $_[0]);
+   if ($list =~ /@funcs[0]/) {
+      return;
+   } else {
+      $list = $list . @funcs[0];
+   }
+   if ($indent == 0) { }
+   elsif ($indent >= 1) { print OUT "|   " x ($indent - 1) . "+--->"; }
+   print OUT @funcs[0] . "\n";   
+   shift @funcs;
+      my $temp = $list;
+   foreach my $i (@funcs) {
+      ++$indent;
+      draw_func(@deplist{$i});
+      --$indent;
+   }
+      $list = $temp;
+}
+
+