#! /usr/bin/perl -w

$style = (@ARGV > 0)? $ARGV[0] : "a4ps";

open(IN, "z-rawindex")   || die "Can't open z-rawindex\n";
open(OUT, ">z-contents") || die "Can't open z-contents\n";

print OUT <<'EOF';
.if ~~sys.fancy
.linelength ~~sys.linelength + 0.2in
.pagedepth ~~sys.pagedepth - 0.2in
.linedepth 12.24
.fi
.include "markup.sg"
.set chapter -1
.set p 0
.format p roman
.tabset 2em 2em
.
.foot
.set p ~~sys.pagenumber
$c [~~p]
.endfoot
.
.chapter Contents
.disable filling
.justify left
EOF

while(<IN>)
  {
  if (/\$e/)
    {
    s/\$e\s*$//;                      # "see also" lines have no line number
    s/--\s*\d+$//;                    # remove "extra" number for index page 

    s/\n$//;                          # trailing newline
    
    if (!/^\$/)
      {
      print OUT ".blank\n";
      print OUT ".if ~~sys.leftonpage < 2*~~sys.linedepth\n";
      print OUT ".newpage\n";
      print OUT ".fi\n";  
      print OUT "\$shead\{$_\}\n"; 
      print OUT ".blank\n";
      }  
    else
      { 
      print OUT "$_\n";
      } 
    }  
  } 

close(IN);
close(OUT);

system("sgcal z-contents -to zc-gcode -style $style -index /dev/null");
if ($style eq "a4ps")
  {
  system("sgtops zc-gcode -to zc-ps");
  print "PostScript in zc-ps\n";
  }
else
  {
  system("mv -f zc-gcode zc-txt");
  print "Text in zc-txt\n";       
  }

# End