IkiWiki/Plugin/hnb.pm



#!/usr/bin/perl
# hnb markup
# Licensed under the GPL v2 or greater
# Copyright (C) 2008 by Axel Beckert <abe@deuxchevaux.org>
# 
# TODO: Make a switch to allow both HTML export routines of hnb 
# (`export_html` and `export_htmlcss`) to be used.

package IkiWiki::Plugin::hnb;

use warnings;
use strict;
use IkiWiki 3.00;
use File::Temp qw(:mktemp);

sub import {
    hook(type => "getsetup", id => "hnb", call => \&getsetup);
    hook(type => "htmlize", id => "hnb", call => \&htmlize);
}

sub getsetup () {
    return
        plugin => {
            safe => 1,
            rebuild => 1, # format plugin
            section => "format",
        },
}

sub htmlize (@) {
    my %params = @_;

    # hnb outputs version number etc. every time to STDOUT, so
    # using files makes it easier to seprarate.

    my $tmpin  = mkstemp( "/tmp/ikiwiki-hnbin.XXXXXXXXXX"  );
    my $tmpout = mkstemp( "/tmp/ikiwiki-hnbout.XXXXXXXXXX" );

    open(TMP, '>', $tmpin) or die "Can't write to $tmpin: $!";
    print TMP $params{content};
    close TMP;

    system("hnb '$tmpin' 'go root' 'export_html $tmpout' > /dev/null");
    unlink $tmpin;

    open(TMP, '<', $tmpout) or die "Can't read from $tmpout: $!";
    local $/;
    my $ret = <TMP>;
    close TMP;
    unlink $tmpout;

    $ret =~ s/.*<body>//si;
    $ret =~ s/<body>.*//si;

    return $ret;
}

1;