parse-wormedit: json format option

[wormy.git] / parse-wormedit

diff --git a/parse-wormedit b/parse-wormedit
index 99daaa15e8579dfa8d8a889a593ba19294122c2d..aa220513657bfdaf49507b9311e97ea627334025 100755 (executable)
--- a/parse-wormedit
+++ b/parse-wormedit
@@ -54,12 +54,12 @@ else {
 
 if ($opt{output}) {{
        # derive format from file extension
-       if ($opt{output} =~ /\.yaml$/) {
-               $opt{format} //= 'yaml';
+       if ($opt{output} =~ /\.(yaml|json|txt)$/) {
+               $opt{format} //= $1
        }
-       elsif ($opt{output} !~ /\.txt$/) {
-               $opt{format} //= 'pnm';
-               last;  # images are written directly to file
+       else {
+               # images are written directly to file
+               last;
        }
 
        # redirect standard output to given file
@@ -70,26 +70,9 @@ if ($opt{output}) {{
 
 # output with user-preferred formatting
 given ($opt{format}) {
-when ('pnm') {
-       require Games::Wormy::Render;
-
-       my @request;
-       if ($opt{levels}) {
-               # find all numeric values in argument
-               @request = $opt{levels} =~ /(\d+)/g;
-       }
-       else {
-               # default to all singleplayer levels
-               @request = 0 .. $data->{levelcount}->{single} - 1;
-       }
-       @request or die "no levels found or specified\n";
-
-       my $img = Games::Wormy::Render->composite(
-               map { $data->{levels}->[$_] } @request
-       ) or die "empty result for levels\n";
-       $img->write(
-               $opt{output} ? (file => $opt{output}) : (fh => \*STDOUT, type => 'pnm')
-       ) or die $img->errstr;
+when ('json') {
+       require JSON;
+       say JSON->new->encode($data);
 }
 when ('yaml') {
        # full data in yaml (human-readable) formatting
@@ -113,7 +96,7 @@ when ('yaml') {
 
        print $yml;
 }
-default {
+when ('txt') {
        print $data->{name};
        print " ($data->{description})" if defined $data->{description};
        print "\n";
@@ -166,6 +149,32 @@ default {
        }
        print "\n";
 }
+default {
+       require Games::Wormy::Render;
+
+       my @request;
+       if ($opt{levels}) {
+               # find all numeric values in argument
+               @request = $opt{levels} =~ /(\d+)/g;
+       }
+       else {
+               # default to all singleplayer levels
+               @request = 0 .. $data->{levelcount}->{single} - 1;
+       }
+       @request or die "no levels found or specified\n";
+
+       my $img = Games::Wormy::Render->composite(
+               map { $data->{levels}->[$_] } @request
+       ) or die "empty result for levels\n";
+       if ($opt{format} ~~ 'pbm') {
+               $img = $img->to_paletted({make_colors => 'mono'});
+               $opt{format} = 'pnm';
+       }
+       $img->write(
+               $opt{output} ? (file => $opt{output}) : (fh => \*STDOUT),
+               type => $opt{format} // 'pnm',
+       ) or die $img->errstr;
+}
 }
 
 __END__
@@ -196,6 +205,10 @@ Plain text summary of levelpack contents.
 
 All parsed data in YAML syntax.
 
+=item json
+
+Parsed data in JSON syntax.
+
 =item pnm, png, bmp, ...
 
 Image drawing of rendered levels.