fix false positive in link_types_changed

[git.ikiwiki.info.git] / IkiWiki / Plugin / highlight.pm

diff --git a/IkiWiki/Plugin/highlight.pm b/IkiWiki/Plugin/highlight.pm
index 90e7053d92d42d4b3f4e760c23aa537471e72e44..e517ac5c06aa425771dcac7256a8e3127da8d3bb 100644 (file)
--- a/IkiWiki/Plugin/highlight.pm
+++ b/IkiWiki/Plugin/highlight.pm
@@ -4,6 +4,7 @@ package IkiWiki::Plugin::highlight;
 use warnings;
 use strict;
 use IkiWiki 3.00;
+use Encode;
 
 # locations of highlight's files
 my $filetypes="/etc/highlight/filetypes.conf";
@@ -22,6 +23,7 @@ sub getsetup () {
                plugin => {
                        safe => 1,
                        rebuild => 1, # format plugin
+                       section => "format",
                },
                tohighlight => {
                        type => "string",
@@ -69,15 +71,16 @@ sub htmlizefallback {
                return;
        }
 
-       return highlight($langfile, shift);
+       return Encode::decode_utf8(highlight($langfile, shift));
 }
 
 my %ext2lang;
 my $filetypes_read=0;
+my %highlighters;
 
 # Parse highlight's config file to get extension => language mappings.
 sub read_filetypes () {
-       open (IN, $filetypes);
+       open (IN, $filetypes) || error("$filetypes: $!");
        while (<IN>) {
                chomp;
                if (/^\$ext\((.*)\)=(.*)$/) {
@@ -88,23 +91,23 @@ sub read_filetypes () {
        $filetypes_read=1;
 }
 
-sub langfile ($) {
-       return "$langdefdir/$_[0].lang";
-}
 
 # Given a filename extension, determines the language definition to
 # use to highlight it.
 sub ext2langfile ($) {
        my $ext=shift;
 
+       my $langfile="$langdefdir/$ext.lang";
+       return $langfile if exists $highlighters{$langfile};
+
        read_filetypes() unless $filetypes_read;
        if (exists $ext2lang{$ext}) {
-               return langfile($ext2lang{$ext});
+               return "$langdefdir/$ext2lang{$ext}.lang";
        }
        # If a language only has one common extension, it will not
        # be listed in filetypes, so check the langfile.
-       elsif (-e langfile($ext)) {
-               return langfile($ext);
+       elsif (-e $langfile) {
+               return $langfile;
        }
        else {
                return undef;
@@ -122,16 +125,21 @@ sub highlight ($$) {
                return $input;
        }
 
-       my $gen = highlightc::CodeGenerator_getInstance($highlightc::XHTML);
-       $gen->setFragmentCode(1); # generate html fragment
-       $gen->setHTMLEnclosePreTag(1); # include stylish <pre>
-       $gen->initLanguage($langfile);
-       $gen->initTheme("/dev/null"); # theme is not needed because CSS is not emitted
-       $gen->setEncoding("utf-8");
+       my $gen;
+       if (! exists $highlighters{$langfile}) {
+               $gen = highlightc::CodeGenerator_getInstance($highlightc::XHTML);
+               $gen->setFragmentCode(1); # generate html fragment
+               $gen->setHTMLEnclosePreTag(1); # include stylish <pre>
+               $gen->initTheme("/dev/null"); # theme is not needed because CSS is not emitted
+               $gen->initLanguage($langfile); # must come after initTheme
+               $gen->setEncoding("utf-8");
+               $highlighters{$langfile}=$gen;
+       }
+       else {          
+               $gen=$highlighters{$langfile};
+       }
 
-       my $output=$gen->generateString($input);
-       highlightc::CodeGenerator_deleteInstance($gen);
-       return $output;
+       return $gen->generateString($input);
 }
 
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