linuxthreads/man/troffprepro

   1 #!/usr/local/bin/perl
   2
   3 $insynopsis = 0;
   4
   5 open(INPUT, $ARGV[0]) || die("cannot open $ARGV[0]");
   6 open(OUTPUT, "> $ARGV[1]") || die("cannot create $ARGV[1]");
   7
   8 select(OUTPUT);
   9
  10 line:
  11 while(<INPUT>) {
  12   if (/^\.XREF (.*)$/) {
  13     $xref = $1;
  14     $_ = $ARGV[1];
  15     m/^.*\.(([1-8]).*)$/;
  16     $suffix = $1;
  17     $extension = $2;
  18     open(XREF, "> $xref.$suffix");
  19     print XREF ".so man$extension/$ARGV[1]\n";
  20     close(XREF);
  21     next line;
  22   }
  23   if (/^\.SH/) {
  24     $insynopsis = /SYNOPSIS/;
  25     print $_;
  26     next;
  27   }
  28   if ($insynopsis) {
  29     if (/^#/) {
  30       print ".B ", $_;
  31     }
  32     elsif (/^[a-z]/) {
  33       chop;
  34 #      if (m/^([a-zA-Z][a-zA-Z0-9_]*\s+[a-zA-Z][a-zA-Z0-9_]*)\(/) {
  35 #          print ".B \"", $1, "\"\n";
  36 #          $_ = '(' . $';
  37 #      }
  38 #      s/([a-zA-Z][a-zA-Z0-9_]*)(\s*[,()=])/" \1 "\2/g;
  39       s/([ *])([a-zA-Z][a-zA-Z0-9_]*)(\s*[,)=])/\1" \2 "\3/g;
  40       print ".BI \"", $_, "\"\n";
  41     }
  42     else {
  43       print $_;
  44     }
  45     next;
  46   }
  47   chop;
  48   s/!([^!]+)!\|([^|]+)\|([^\s]*)\s*/\n.BI "\1" "\2\3"\n/g;
  49   s/([!|])([^!|]+)\1([^\s]*)\s*/do subst($1,$2,$3)/eg;
  50   s/^\n+//;
  51   s/\n+$//;
  52   s/\n\n+/\n/g;
  53   print $_, "\n";
  54 }
  55
  56 close(INPUT);
  57 close(OUTPUT);
  58
  59 sub subst {
  60   local ($a, $b, $c) = @_;
  61   if ($c) {
  62     "\n" . ($a eq "!" ? ".BR " : ".IR ") . "\"$b\" $c\n"
  63   } else {
  64     "\n" . ($a eq "!" ? ".B " : ".I ") . "\"$b\"\n"
  65   }
  66 }
  67
  68