Added GeshiBundle to highlight source code

Signed-off-by: Gergely Polonkai (W00d5t0ck) <polesz@w00d5t0ck.info>

src/GergelyPolonkai/GeshiBundle/DependencyInjection/Configuration.php

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+<?php
+
+namespace GergelyPolonkai\GeshiBundle\DependencyInjection;
+
+use Symfony\Component\Config\Definition\Builder\TreeBuilder;
+use Symfony\Component\Config\Definition\ConfigurationInterface;
+
+/**
+ * This is the class that validates and merges configuration from your app/config files
+ *
+ * To learn more see {@link http://symfony.com/doc/current/cookbook/bundles/extension.html#cookbook-bundles-extension-config-class}
+ */
+class Configuration implements ConfigurationInterface
+{
+    /**
+     * {@inheritDoc}
+     */
+    public function getConfigTreeBuilder()
+    {
+        $treeBuilder = new TreeBuilder();
+        $rootNode = $treeBuilder->root('gergely_polonkai_geshi');
+
+        // Here you should define the parameters that are allowed to
+        // configure your bundle. See the documentation linked above for
+        // more information on that topic.
+
+        return $treeBuilder;
+    }
+}

src/GergelyPolonkai/GeshiBundle/DependencyInjection/GergelyPolonkaiGeshiExtension.php

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+<?php
+
+namespace GergelyPolonkai\GeshiBundle\DependencyInjection;
+
+use Symfony\Component\DependencyInjection\ContainerBuilder;
+use Symfony\Component\Config\FileLocator;
+use Symfony\Component\HttpKernel\DependencyInjection\Extension;
+use Symfony\Component\DependencyInjection\Loader;
+
+/**
+ * This is the class that loads and manages your bundle configuration
+ *
+ * To learn more see {@link http://symfony.com/doc/current/cookbook/bundles/extension.html}
+ */
+class GergelyPolonkaiGeshiExtension extends Extension
+{
+    /**
+     * {@inheritDoc}
+     */
+    public function load(array $configs, ContainerBuilder $container)
+    {
+        $configuration = new Configuration();
+        $config = $this->processConfiguration($configuration, $configs);
+
+        $loader = new Loader\YamlFileLoader($container, new FileLocator(__DIR__.'/../Resources/config'));
+        $loader->load('services.yml');
+    }
+}

src/GergelyPolonkai/GeshiBundle/GergelyPolonkaiGeshiBundle.php

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+<?php
+
+namespace GergelyPolonkai\GeshiBundle;
+
+use Symfony\Component\HttpKernel\Bundle\Bundle;
+
+class GergelyPolonkaiGeshiBundle extends Bundle
+{
+}

src/GergelyPolonkai/GeshiBundle/Resources/config/services.yml

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+parameters:
+    gergely_polonkai_geshi.geshi_highlighter.class: GergelyPolonkai\GeshiBundle\Twig\GeshiHighlight
+
+services:
+    gergely_polonkai_geshi.geshi_highlighter:
+        class: %gergely_polonkai_geshi.geshi_highlighter.class%
+        tags:
+            - { name: 'twig.extension' }

src/GergelyPolonkai/GeshiBundle/Twig/GeshiHighlight.php

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+<?php
+
+namespace GergelyPolonkai\GeshiBundle\Twig;
+
+use GeSHi;
+
+/**
+ * Description of GeshiHighlight
+ *
+ * @author polonkai.gergely
+ */
+class GeshiHighlight extends \Twig_Extension
+{
+    /**
+     *
+     * @var \GeSHi $geshi
+     */
+    private $geshi;
+
+    public function __construct()
+    {
+        $this->geshi = new GeSHi();
+    }
+
+    public function getFilters()
+    {
+        return array(
+            'geshi_highlight' => new \Twig_Filter_Method($this, 'geshiFilter', array('is_safe' => array('html'))),
+        );
+    }
+
+    public function geshiFilter($code, $lang)
+    {
+        $this->geshi->set_language($lang);
+        $this->geshi->set_source($code);
+        $this->geshi->enable_line_numbers(GESHI_NORMAL_LINE_NUMBERS);
+        $this->geshi->enable_keyword_links(false);
+        $this->geshi->enable_classes();
+        return $this->geshi->parse_code();
+    }
+
+    public function getName() {
+        return 'geshi_highlighter';
+    }
+}