build/extract-doc.pl

   1 #!/usr/bin/perl
   2 use strict;
   3 use warnings;
   4
   5 my( $inname, $outname, $depname, $basedir ) = @ARGV;
   6 if( defined $inname ) {
   7         open IN, $inname or die "Could not read $inname ($!)\n";
   8 } else {
   9         open IN, "<&STDIN" or die "Could not read stdin ($!)\n";
  10 }
  11 if( defined $outname ) {
  12         open OUT, ">$outname" or die "Could not write $outname ($!)\n";
  13 } else {
  14         open OUT, ">&STDOUT" or die "Could not write to stdout ($!)\n";
  15 }
  16 my $hasdep;
  17 if( defined $depname ) {
  18         open DEP, ">>$depname" or die "Could not write $depname ($!)\n";
  19         $hasdep = 1;
  20 }
  21
  22 print DEP "$outname:" if( $hasdep );
  23
  24 sub formatNote( $$ ) {
  25         my( $head, $comment ) = @_;
  26         $head =~ s/[\t ]+/ /g;
  27         print OUT "\n";
  28         print OUT "''''\n";
  29         print OUT "..................\n";
  30         print OUT "$head\n";
  31         print OUT "..................\n\n";
  32         print OUT "$comment\n";
  33 }
  34
  35 sub process( $ ) {
  36         my $file = shift;
  37         open FILE, $file or die "Could nod read $file ($!)\n";
  38         my $line;
  39         my $active;
  40         my $verbatim;
  41         my $buff;
  42         my $head;
  43         my $struct;
  44         while( defined( $line = <FILE> ) ) {
  45                 chomp $line;
  46                 if( $struct ) {
  47                         $head .= "\n".$line;
  48                         if( $line =~ /}/ ) {
  49                                 formatNote( $head, $buff );
  50                                 $struct = 0;
  51                                 $buff = undef;
  52                                 $head = undef;
  53                         }
  54                 } elsif( $verbatim ) {
  55                         if( $line =~ /\*\// ) {
  56                                 $verbatim = 0;
  57                         } else {
  58                                 $line =~ s/^\s*\* ?//;
  59                                 print OUT "$line\n";
  60                         }
  61                 } elsif( $active ) {
  62                         if( $line =~ /\*\// ) {
  63                                 $active = 0;
  64                         } else {
  65                                 $line =~ s/^\s*\* ?//;
  66                                 $line =~ s/^\s*$/+/;
  67                                 $buff .= "$line\n";
  68                         }
  69                 } else {
  70                         if( ( $line =~ /\S/ ) && ( defined $buff ) ) {
  71                                 if( $line =~ /\(/ || $line !~ /{/ ) {
  72                                         $_ = $line;
  73                                         s/^\s*\s?//;
  74                                         s/\/\/.*//;
  75                                         s/\/\*.*?\*\///gs;
  76                                         s/[;{].*//;
  77                                         formatNote( $_, $buff );
  78                                         $head = undef;
  79                                         $buff = undef;
  80                                 } else {
  81                                         $head = $line;
  82                                         $struct = 1;
  83                                 }
  84                         } elsif( ( $head, $buff ) = ( $line =~ /^(.*)\/\*\*(.*)\*\*\// ) ) {
  85                                 $buff =~ s/^\s*//;
  86                                 $buff =~ s/\s*$//;
  87                                 if( $head =~ /\(/ || $head !~ /{/ ) {
  88                                         $head =~ s/^\s*//;
  89                                         $head =~ s/\/\*.*?\*\///gs;
  90                                         $head =~ s/([;{]).*/$1/;
  91                                         formatNote( $head, $buff );
  92                                         $head = undef;
  93                                         $buff = undef;
  94                                 } else {
  95                                         $struct = 1;
  96                                 }
  97                         } elsif( $line =~ /\/\*\*\*/ ) {
  98                                 $verbatim = 1;
  99                         } elsif( $line =~ /\/\*\*/ ) {
 100                                 $active = 1;
 101                         }
 102                 }
 103         }
 104         close FILE;
 105 }
 106
 107 my $line;
 108 while( defined( $line = <IN> ) ) {
 109         chomp $line;
 110         if( my( $fname ) = ( $line =~ /^!!\s*(.*\S)/ ) ) {
 111                 $fname = "$basedir/$fname" if( ( $fname !~ /^\// ) && defined $basedir );
 112                 process( $fname );
 113                 print DEP " $fname" if( $hasdep );
 114         } else {
 115                 print OUT "$line\n";
 116         }
 117 }
 118
 119 print DEP "\n" if( $hasdep );
 120
 121 close IN;
 122 close OUT;
 123 close DEP;