Provide a UUID in edittemplate templates.

[ikiwiki.git] / IkiWiki / Plugin / mdwn.pm

diff --git a/IkiWiki/Plugin/mdwn.pm b/IkiWiki/Plugin/mdwn.pm
index c1f978ad3b99c2c0cd68c5aa75570725e3db8489..014e78eea124604e249d35d42a6b9ccf6524c254 100644 (file)
--- a/IkiWiki/Plugin/mdwn.pm
+++ b/IkiWiki/Plugin/mdwn.pm
@@ -4,33 +4,115 @@ package IkiWiki::Plugin::mdwn;
 
 use warnings;
 use strict;
-use IkiWiki;
+use IkiWiki 3.00;
 
-sub import { #{{{
-       IkiWiki::hook(type => "htmlize", id => "mdwn", call => \&htmlize);
-} # }}}
+sub import {
+       hook(type => "getsetup", id => "mdwn", call => \&getsetup);
+       hook(type => "htmlize", id => "mdwn", call => \&htmlize, longname => "Markdown");
+}
 
-sub htmlize ($) { #{{{
-       my $content = shift;
+sub getsetup () {
+       return
+               plugin => {
+                       safe => 1,
+                       rebuild => 1, # format plugin
+                       section => "format",
+               },
+               multimarkdown => {
+                       type => "boolean",
+                       example => 0,
+                       description => "enable multimarkdown features?",
+                       safe => 1,
+                       rebuild => 1,
+               },
+               nodiscount => {
+                       type => "boolean",
+                       example => 0,
+                       description => "disable use of markdown discount?",
+                       safe => 1,
+                       rebuild => 1,
+               },
+}
 
-       if (! $INC{"/usr/bin/markdown"}) {
-               # Note: a proper perl module is available in Debian
-               # for markdown, but not upstream yet.
+my $markdown_sub;
+sub htmlize (@) {
+       my %params=@_;
+       my $content = $params{content};
+
+       if (! defined $markdown_sub) {
+               # Markdown is forked and splintered upstream and can be
+               # available in a variety of forms. Support them all.
                no warnings 'once';
                $blosxom::version="is a proper perl module too much to ask?";
                use warnings 'all';
-               do "/usr/bin/markdown" || IkiWiki::error("failed to load /usr/bin/markdown: $!");
+
+               if (exists $config{multimarkdown} && $config{multimarkdown}) {
+                       eval q{use Text::MultiMarkdown};
+                       if ($@) {
+                               debug(gettext("multimarkdown is enabled, but Text::MultiMarkdown is not installed"));
+                       }
+                       else {
+                               $markdown_sub=sub {
+                                       Text::MultiMarkdown::markdown(shift, {use_metadata => 0});
+                               }
+                       }
+               }
+               if (! defined $markdown_sub &&
+                   (! exists $config{nodiscount} || ! $config{nodiscount})) {
+                       eval q{use Text::Markdown::Discount};
+                       if (! $@) {
+                               $markdown_sub=sub {
+                                       my $t=shift;
+                                       # Workaround for discount binding bug
+                                       # https://rt.cpan.org/Ticket/Display.html?id=73657
+                                       return "" if $t=~/^\s*$/;
+                                       # Workaround for discount's eliding
+                                       # of <style> blocks.
+                                       # https://rt.cpan.org/Ticket/Display.html?id=74016
+                                       $t=~s/<style/<elyts/ig;
+                                       my $r=Text::Markdown::Discount::markdown($t);
+                                       $r=~s/<elyts/<style/ig;
+                                       return $r;
+                               }
+                       }
+               }
+               if (! defined $markdown_sub) {
+                       eval q{use Text::Markdown};
+                       if (! $@) {
+                               if (Text::Markdown->can('markdown')) {
+                                       $markdown_sub=\&Text::Markdown::markdown;
+                               }
+                               else {
+                                       $markdown_sub=\&Text::Markdown::Markdown;
+                               }
+                       }
+                       else {
+                               eval q{use Markdown};
+                               if (! $@) {
+                                       $markdown_sub=\&Markdown::Markdown;
+                               }
+                               else {
+                                       my $error = $@;
+                                       do "/usr/bin/markdown" ||
+                                               error(sprintf(gettext("failed to load Markdown.pm perl module (%s) or /usr/bin/markdown (%s)"), $error, $!));
+                                       $markdown_sub=\&Markdown::Markdown;
+                               }
+                       }
+               }
+               
                require Encode;
        }
        
        # Workaround for perl bug (#376329)
        $content=Encode::encode_utf8($content);
-       $content=Encode::encode_utf8($content);
-       $content=Markdown::Markdown($content);
-       $content=Encode::decode_utf8($content);
+       eval {$content=&$markdown_sub($content)};
+       if ($@) {
+               eval {$content=&$markdown_sub($content)};
+               print STDERR $@ if $@;
+       }
        $content=Encode::decode_utf8($content);
 
        return $content;
-} # }}}
+}
 
 1