IkiWiki/Plugin/mdwn.pm

   1 #!/usr/bin/perl
   2 # Markdown markup language
   3 package IkiWiki::Plugin::mdwn;
   4
   5 use warnings;
   6 use strict;
   7 use IkiWiki 2.00;
   8
   9 sub import { #{{{
  10         hook(type => "getsetup", id => "mdwn", call => \&getsetup);
  11         hook(type => "htmlize", id => "mdwn", call => \&htmlize);
  12 } # }}}
  13
  14 sub getsetup () { #{{{
  15         return
  16                 multimarkdown => {
  17                         type => "boolean",
  18                         example => 0,
  19                         description => "enable multimarkdown features?",
  20                         safe => 1,
  21                         rebuild => 1,
  22                 },
  23 } #}}}
  24
  25 my $markdown_sub;
  26 sub htmlize (@) { #{{{
  27         my %params=@_;
  28         my $content = $params{content};
  29
  30         if (! defined $markdown_sub) {
  31                 # Markdown is forked and splintered upstream and can be
  32                 # available in a variety of forms. Support them all.
  33                 no warnings 'once';
  34                 $blosxom::version="is a proper perl module too much to ask?";
  35                 use warnings 'all';
  36
  37                 if (exists $config{multimarkdown} && $config{multimarkdown}) {
  38                         eval q{use Text::MultiMarkdown};
  39                         if ($@) {
  40                                 debug(gettext("multimarkdown is enabled, but Text::MultiMarkdown is not installed"));
  41                         }
  42                         $markdown_sub=sub {
  43                                 Text::MultiMarkdown::markdown(shift, {use_metadata => 0});
  44                         }
  45                 }
  46                 if (! defined $markdown_sub) {
  47                         eval q{use Text::Markdown};
  48                         if (! $@) {
  49                                 if (Text::Markdown->can('markdown')) {
  50                                         $markdown_sub=\&Text::Markdown::markdown;
  51                                 }
  52                                 else {
  53                                         $markdown_sub=\&Text::Markdown::Markdown;
  54                                 }
  55                         }
  56                         else {
  57                                 eval q{use Markdown};
  58                                 if (! $@) {
  59                                         $markdown_sub=\&Markdown::Markdown;
  60                                 }
  61                                 else {
  62                                         do "/usr/bin/markdown" ||
  63                                                 error(sprintf(gettext("failed to load Markdown.pm perl module (%s) or /usr/bin/markdown (%s)"), $@, $!));
  64                                         $markdown_sub=\&Markdown::Markdown;
  65                                 }
  66                         }
  67                 }
  68
  69                 require Encode;
  70         }
  71
  72         # Workaround for perl bug (#376329)
  73         $content=Encode::encode_utf8($content);
  74         eval {$content=&$markdown_sub($content)};
  75         if ($@) {
  76                 eval {$content=&$markdown_sub($content)};
  77                 print STDERR $@ if $@;
  78         }
  79         $content=Encode::decode_utf8($content);
  80
  81         return $content;
  82 } # }}}
  83
  84 1