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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;
use warnings;
use strict;
use IkiWiki;
use IPC::Open2;
sub import { #{{{
IkiWiki::hook(type => "sanitize", id => "tidy", call => \&sanitize);
} # }}}
sub sanitize (@) { #{{{
my %params=@_;
my $tries=10;
my $pid;
while (1) {
eval {
$pid=open2(*IN, *OUT, 'tidy -quiet -asxhtml -utf8 --show-body-only yes --show-warnings no --tidy-mark no');
};
last unless $@;
$tries--;
if ($tries < 1) {
IkiWiki::debug("failed to run tidy: $@");
return $params{content};
}
}
# open2 doesn't respect "use open ':utf8'"
binmode (IN, ':utf8');
binmode (OUT, ':utf8');
print OUT $params{content};
close OUT;
local $/ = undef;
my $ret=<IN>;
close IN;
waitpid $pid, 0;
return $ret;
} # }}}
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