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