ikiwiki/IkiWiki/Plugin/htmltidy.pm

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#!/usr/bin/perl
# HTML Tidy plugin
# requires 'tidy' binary, found in Debian or http://tidy.sf.net/
# mostly a proof-of-concept on how to use external filters.
# It is particularly useful when the html plugin is used.
#
# by Faidon Liambotis
package IkiWiki::Plugin::htmltidy;
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use warnings;
use strict;
use IkiWiki 2.00;
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use IPC::Open2;
sub import { #{{{
hook(type => "getsetup", id => "tidy", call => \&getsetup);
hook(type => "sanitize", id => "tidy", call => \&sanitize);
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} # }}}
sub getsetup () { #{{{
return
plugin => {
safe => 1,
rebuild => undef,
},
} #}}}
sub sanitize (@) { #{{{
my %params=@_;
my $pid;
my $sigpipe=0;
$SIG{PIPE}=sub { $sigpipe=1 };
$pid=open2(*IN, *OUT, 'tidy -quiet -asxhtml -utf8 --show-body-only yes --show-warnings no --tidy-mark no --markup yes 2>/dev/null');
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# open2 doesn't respect "use open ':utf8'"
binmode (IN, ':utf8');
binmode (OUT, ':utf8');
print OUT $params{content};
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close OUT;
local $/ = undef;
my $ret=<IN>;
close IN;
waitpid $pid, 0;
$SIG{PIPE}="DEFAULT";
return "" if $sigpipe || ! defined $ret;
return $ret;
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} # }}}
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