Markdown & syntax highlighter

Colorful.php

<?php
namespace Sundown\Render;

class Colorful extends HTML {
    public function blockCode($code, $lang) {
        if($lang) {
            return self::renderCode($code, $lang);
        }
        return parent::blockCode($code, $lang);
    }

    public static function renderCode($code, $lang) {
        $tmp = tmpfile();
        fwrite($tmp, $code);
        $meta_data = stream_get_meta_data($tmp);
        $cmd = "pygmentize -f html -l $lang -P encoding=utf-8 {$meta_data['uri']}";
        $output = shell_exec($cmd);
        fclose($tmp);
        return $output;
    }
}

markdown

#!/usr/bin/env python

import sys
import misaka as m
from misaka import HtmlRenderer, Markdown
from pygments import highlight
from pygments.lexers import get_lexer_by_name
from pygments.formatters import HtmlFormatter
# https://github.com/FSX/misaka
# http://pygments.org/

class ColorRenderer(HtmlRenderer):
    def block_code(self, text, lang):
        if not lang:
            return '<pre><code>%s</code></pre>' % text.strip()
        lexer = get_lexer_by_name(lang, stripall = True)
        return highlight(text, lexer, HtmlFormatter())

if __name__ == '__main__':
    if len(sys.argv) > 1:
        with open(sys.argv[1], 'r') as fd:
            text = fd.read()
    else:
        text = sys.stdin.read()
    text = text.decode('utf-8')

    flags = m.HTML_HARD_WRAP
    exts = m.EXT_FENCED_CODE | m.EXT_AUTOLINK | m.EXT_NO_INTRA_EMPHASIS | m.EXT_SUPERSCRIPT | m.EXT_TABLES
    md = Markdown(ColorRenderer(flags), exts)
    print md.render(text).encode('utf-8')

markdown.php

<?php

function Markdown($text) {
    $desc = array( array('pipe', 'r'), array('pipe', 'w'));
    $process = proc_open(__DIR__.'/markdown', $desc, $pipes);
    fwrite($pipes[0], $text);
    fclose($pipes[0]);
    $output = stream_get_contents($pipes[1]);
    fclose($pipes[1]);
    return $output;
}

/*
 * https://github.com/chobie/php-sundown
 */
function Markdown1($text) {
    exec('pygmentize', $output, $status);
    if($status === 0) {
        include_once 'Colorful.php';
    }
    $flags = array("hard_wrap" => true);
    $extensions = array(
        "hard_wrap" => true,
        "fenced_code_blocks" => true,
        "autolink" => true,
    );
    $renderClass = 'Sundown\Render'. (class_exists('Sundown\Render\Colorful') ? '\Colorful' : '\HTML');
    $sundown = new Sundown\Markdown(new $renderClass($flags), $extensions);
    return $sundown->render($text);
}