X-Git-Url: https://sipb.mit.edu/gitweb.cgi/ikiwiki.git/blobdiff_plain/cade16fbb6df5b1374f28a393ef9bf2b715c143b..1d6eb13e2b3b7cf60f26ae4c5b631b0e65e34c5f:/IkiWiki/Plugin/mdwn.pm

diff --git a/IkiWiki/Plugin/mdwn.pm b/IkiWiki/Plugin/mdwn.pm
index 8e037f5de..430194bff 100644
--- a/IkiWiki/Plugin/mdwn.pm
+++ b/IkiWiki/Plugin/mdwn.pm
@@ -4,41 +4,114 @@ 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");
+}
 
-my $markdown_loaded=0;
-sub htmlize ($) { #{{{
-	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 (! $markdown_loaded) {
-		# Note: This hack to make markdown run as a proper perl
-		# module. 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';
 
-		eval q{use Markdown};
-		if ($@) {
-			do "/usr/bin/markdown" ||
-				IkiWiki::error("failed to load Markdown.pm perl module ($@) or /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 {
+					do "/usr/bin/markdown" ||
+						error(sprintf(gettext("failed to load Markdown.pm perl module (%s) or /usr/bin/markdown (%s)"), $@, $!));
+					$markdown_sub=\&Markdown::Markdown;
+				}
+			}
 		}
-		$markdown_loaded=1;
+		
 		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