+ 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 {
+ my %flags=( use_metadata => 0 );
+
+ $flags{disable_footnotes}=not $config{mdwn_footnotes};
+
+ Text::MultiMarkdown::markdown(shift, \%flags);
+ }
+ }
+ }
+ if (! defined $markdown_sub &&
+ (! exists $config{nodiscount} || ! $config{nodiscount})) {
+ eval q{use Text::Markdown::Discount};
+ if (! $@) {
+ my $markdown = \&Text::Markdown::Discount::markdown;
+ my $always_flags = 0;
+
+ # Disable Pandoc-style % Title, % Author, % Date
+ # Use the meta plugin instead
+ $always_flags |= Text::Markdown::Discount::MKD_NOHEADER();
+
+ # Disable Unicodification of quote marks, em dashes...
+ # Use the typography plugin instead
+ $always_flags |= Text::Markdown::Discount::MKD_NOPANTS();
+
+ # Workaround for discount's eliding of <style> blocks.
+ # https://rt.cpan.org/Ticket/Display.html?id=74016
+ if (Text::Markdown::Discount->can('MKD_NOSTYLE')) {
+ $always_flags |= Text::Markdown::Discount::MKD_NOSTYLE();
+ }
+ elsif ($markdown->('<style>x</style>', 0) !~ '<style>' &&
+ $markdown->('<style>x</style>', 0x00400000) =~ m{<style>x</style>}) {
+ $always_flags |= 0x00400000;
+ }
+
+ # Enable fenced code blocks in libmarkdown >= 2.2.0
+ # https://bugs.debian.org/888055
+ if (Text::Markdown::Discount->can('MKD_FENCEDCODE')) {
+ $always_flags |= Text::Markdown::Discount::MKD_FENCEDCODE();
+ }
+ elsif ($markdown->("~~~\nx\n~~~", 0) !~ m{<pre\b} &&
+ $markdown->("~~~\nx\n~~~", 0x02000000) =~ m{<pre\b}) {
+ $always_flags |= 0x02000000;
+ }
+
+ # PHP Markdown Extra-style term\n: definition -> <dl>
+ if (Text::Markdown::Discount->can('MKD_DLEXTRA')) {
+ $always_flags |= Text::Markdown::Discount::MKD_DLEXTRA();
+ }
+ elsif ($markdown->("term\n: def\n", 0) !~ m{<dl>} &&
+ $markdown->("term\n: def\n", 0x01000000) =~ m{<dl>}) {
+ $always_flags |= 0x01000000;
+ }
+
+ # Allow dashes and underscores in tag names
+ if (Text::Markdown::Discount->can('MKD_GITHUBTAGS')) {
+ $always_flags |= Text::Markdown::Discount::MKD_GITHUBTAGS();
+ }
+ elsif ($markdown->('<foo_bar>', 0) !~ m{<foo_bar} &&
+ $markdown->('<foo_bar>', 0x08000000) =~ m{<foo_bar\b}) {
+ $always_flags |= 0x08000000;
+ }
+
+ $markdown_sub=sub {
+ my $t=shift;
+
+ # Workaround for discount binding bug
+ # https://rt.cpan.org/Ticket/Display.html?id=73657
+ return "" if $t=~/^\s*$/;
+
+ my $flags=$always_flags;
+
+ if ($config{mdwn_footnotes}) {
+ $flags |= Text::Markdown::Discount::MKD_EXTRA_FOOTNOTE();
+ }
+
+ unless ($config{mdwn_alpha_lists}) {
+ $flags |= Text::Markdown::Discount::MKD_NOALPHALIST();
+ }
+
+ return Text::Markdown::Discount::markdown($t, $flags);
+ }
+ }