bin/mudela-book.pl

   1 #!@PERL@ -w
   2 # -*-Perl-*-
   3 my $mudcount = 0;
   4 my $mudela_b = 0;
   5 my $outname = "-";
   6 my $outdir;
   7 use Getopt::Long;
   8
   9
  10 # do something, check return status
  11 sub my_system
  12 {
  13     my (@cmds) = @_;
  14     foreach $cmd (@cmds) {
  15         my ($ignoreret)=0;
  16         if ( $cmd  =~ /^-/ ) {
  17             $ignoreret = 1;
  18             $cmd = substr ($cmd, 1);
  19         }
  20
  21         my $ret =  ( system ($cmd));
  22         if ($ret) {
  23             if ($ignoreret) {
  24                 print STDERR "ignoring failed command \`$cmd\' (status $ret)\n";
  25             }else {
  26                 print STDERR "\nmudela-book: failed on command \`$cmd\' (status $ret)\n";
  27                 exit 2;
  28             }
  29         }
  30     }
  31 }
  32 sub gen_mufile
  33 {
  34     return "$outdir/$outname$mudcount.ly";
  35 }
  36
  37 sub gen_texfile
  38 {
  39     return "$outdir/$outname$mudcount.tex";
  40 }
  41
  42 sub close_mudela
  43 {
  44     $mudela_b = 0;
  45     if ($fragment_b) {
  46         print MUDELA "}\n \\paper { linewidth = -1.0\\cm; castingalgorithm = \\Wordwrap; } }\n";
  47         $fragment_b =0;
  48     }
  49     if ( $verbatim_b)  {
  50         print BOOK "\\end{verbatim}\n\\interexample";
  51         $verbatim_b =0;
  52     }
  53     close MUDELA;
  54     my $status =0;
  55     if ( -f gen_mufile ) {
  56         $status = system "diff -q $outdir/book-mudela.ly " . gen_mufile;
  57     } else {
  58         $status = 1;
  59         }
  60     if ( $status ) {
  61         rename "$outdir/book-mudela.ly", gen_mufile;
  62         unlink gen_texfile;
  63     }
  64
  65     if ( ! -f gen_texfile) {
  66         my_system "lilypond ". gen_mufile;
  67         rename "lelie.tex", gen_texfile;
  68     }
  69     print BOOK "\\preexample\\input " . gen_texfile . "\n\\postexample\n";
  70
  71 }
  72
  73 sub open_mudela
  74 {
  75     $mudcount++;
  76     $mudela_b = 1       ;
  77     open MUDELA, ">$outdir/book-mudela.ly";
  78     if ($verbatim_b) {
  79         print BOOK "\\begin{verbatim}\n";
  80     }
  81     if ($fragment_b) {
  82         print MUDELA "\\score { \\melodic {";
  83     }
  84
  85 }
  86
  87 sub begin_b
  88 {
  89     my ($s) = @_;
  90     return (/^\\begin{$s}/) ;
  91 }
  92
  93 sub end_b
  94 {
  95     my ($s) = @_;
  96     return (/^\\end{$s}/) ;
  97 }
  98 sub parse_mudela_opts
  99 {
 100    my ($s) = @_;
 101    $s =~ s/[\[\]]//g;
 102
 103    $verbatim_b =1 if ($s =~ /verbatim/ );
 104    $fragment_b = 1 if ($s =~ /fragment/ );
 105 }
 106
 107 sub help
 108 {
 109     print  "usage: convert-mudela [options] [file]
 110 options:
 111 --help
 112 --outdir=DIRECTORY      write all files in directory DIRECTORY
 113 --outname=NAME          use NAME as base  for the output
 114 ";
 115     exit;
 116 }
 117
 118 sub main
 119 {
 120     GetOptions( 'outdir=s', 'outname=s', 'help');
 121     help    if ( $opt_help ) ;
 122
 123     if  (defined ($opt_outdir)) {
 124         $outdir = $opt_outdir .  "/";
 125     } else {
 126         $outdir = ".";
 127     }
 128
 129     if (defined ($ARGV[0])) {
 130         $infile = $ARGV[0] ;
 131     } else {
 132         $infile = "-";
 133     }
 134     if (defined ($opt_outname)) {
 135         $outname = $opt_outname ;
 136     } else {
 137         die "Need to have an output name, use --outname" if ( $infile eq "-");
 138         $outname = "$infile.tex";
 139     }
 140
 141     my $openout ="$outdir$outname";
 142     if  ( $infile eq $openout ) {
 143         die "The input can't be the output\n";
 144     }
 145
 146     open INFILE, "<$infile";
 147     open BOOK, ">$openout";
 148     while (<INFILE>) {
 149         if ($mudela_b) {
 150             if (end_b "mudela") {
 151                 close_mudela;
 152                 next;
 153             }
 154             print MUDELA;
 155             if ( $verbatim_b ) {
 156                 my $s = $_;
 157                 $s =~ s/\t/    /g; #shit
 158                 print BOOK $s;
 159             }
 160
 161         } else {
 162             if (/^\\begin(\[.*\])?{mudela}/ ) {
 163                 my $opts ="";
 164                 $opts = $1 if ( defined ($1));
 165
 166                 parse_mudela_opts($opts);
 167                 open_mudela;
 168                 next;
 169             }
 170             print BOOK;
 171         }
 172     }
 173     close INFILE;
 174     close BOOK;
 175 }
 176
 177
 178 main;