#! /usr/bin/perl -w

# This is script to tidy up the Texinfo file that docbook2texi produces. We
# have to change "conceptindex" and "optionindex" to "cindex" and "findex", and
# we also have to add access to the index into the menus and a final node.

# Find the start of the first menu.

while (<>)
  {
  print;
  last if /^\@menu/;
  }

# Find the end of the first menu.

while (<>)
  {
  last if /^$/;
  print;
  }

# Insert a menu link to the index.

print "* Concept Index::\n\n";

# Find the final @bye line. En route, we look for the last chapter node, the
# one that has nothing following, and insert a pointer to an index node. Also,
# change the index names.

while (<>)
  {
  last if /^\@bye/;
  if (/^\@node ([^,]+), , (.*)/)
    {
    my($save1) = $1;
    my($save2) = $2;
    my($saveline) = $_;
    $_ = <>;
    if (/^\@chapter/)
      {
      print "\@node $save1, Concept Index, $save2\n";
      $previous = $save1;
      }
    else
      {
      print "$saveline";
      }
    print;
    }
  else
    {
    s/conceptindex/cindex/;
    s/optionindex/findex/;
    s/variableindex/findex/;
    print;
    }
  }

# Insert the final index stuff at the end.

print "\@appendix\n";
print "\@node Concept Index, , $previous, Top\n";
print "\n\@printindex cp\n\n";

print;

# End