contrib/make-obstacks-texi.pl

   1 #!/usr/bin/perl -w
   2
   3 # (C) 2013 Free Software Foundation
   4 # Contributed by Tobias Burnus
   5 #
   6 # This script is Free Software, and it can be copied, distributed and
   7 # modified as defined in the GNU General Public License.  A copy of
   8 # its license can be downloaded from http://www.gnu.org/copyleft/gpl.html
   9
  10 use strict;
  11 use File::Basename;
  12
  13
  14 if ($#ARGV != 0 or $ARGV[0] eq "")  {
  15    my $name = basename($0);
  16
  17    print "\nUSAGE: `$name` memory.texi\n\n";
  18    print "Reads GLIBC's manual/memory.texi and extracts the obstacks section\n"
  19         ."Redirect the output to update GCC's libiberty/obstacks.texi\n\n";
  20    exit 1;
  21 }
  22
  23 open (IN, "<$ARGV[0]") || die "Cannot open '$ARGV[0]': $!";
  24 my $data = join ("", <IN>);
  25 close (IN);
  26
  27 $data =~ s/.*\@node Obstacks\n/\@node Obstacks\n/s;
  28 $data =~ s/\n\@node [^\n]+\n\@subsection.*/\n/s;
  29
  30 # Add refs to GLIBC
  31 $data =~ s/(\@p?xref{[^}]*)}/$1, , , libc, The GNU C Library Reference Manual}/gs;
  32
  33
  34 # And undo the refs which are in this file
  35 my @nodes = grep /^\@node /, (split /\n/, $data);
  36
  37 foreach my $node (@nodes) {
  38   $node =~ s/\@node //;
  39   $node =~ s/,.*//;
  40   $node =~ s/ / *\n?/g;
  41   chomp ($node);
  42
  43   $data =~ s/(\@p?xref{$node), , , libc, The GNU C Library Reference Manual}/$1}/gsi;
  44 }
  45
  46 print $data;