public function highlight($source, $lexer)
{
$hash = sha1($source);
if (!file_exists($this->kernel->getCacheDir() . '/highlight')) {
mkdir($this->kernel->getCacheDir() . '/highlight');
}
$cache = $this->kernel->getCacheDir() . '/highlight/' . $hash;
if (file_exists($cache)) {
$highlight = file_get_contents($cache);
} else {
$highlight = Pygmentize::format($source, $lexer);
file_put_contents($cache, $highlight);
}
return '<div class="highlight"><pre><code class="' . $lexer . '">' . $highlight . '</code></pre></div>';
}
public function indexAction()
{
$lexers = Pygmentize::lexers();
$lexers['objcpp'] = $lexers['objc++'];
unset($lexers['objc++']);
unset($lexers['obj-c++']);
$lexers['objectivecpp'] = $lexers['objectivec++'];
unset($lexers['objective-c++']);
foreach ($lexers as $k => $v) {
unset($lexers[$k]);
$k = str_replace('-', '', $k);
$k = str_replace('+', '', $k);
$k = str_replace(' ', '', $k);
$lexers[$k] = $v;
}
unset($lexers['antlrc#']);
unset($lexers['antlr-c#']);
unset($lexers['c++']);
unset($lexers['c++-objdumb']);
unset($lexers['c#']);
ksort($lexers);
return $this->render('HighlightBundle:docs:index.html.twig', array('lexers' => $lexers));
}
/**
* {@inheritdoc}
*
* @throws \InvalidArgumentException When the target directory does not exist or symlink cannot be used
*/
protected function execute(InputInterface $input, OutputInterface $output)
{
$targetArg = rtrim($input->getArgument('target'), '/');
if (!is_dir($targetArg)) {
throw new \InvalidArgumentException(sprintf('The target directory "%s" does not exist.', $input->getArgument('target')));
}
/** @var Filesystem $filesystem */
$filesystem = $this->getContainer()->get('filesystem');
// Create the bundles directory otherwise symlink will fail.
$bundlesDir = $targetArg . '/bundles/';
$filesystem->mkdir($bundlesDir, 0777);
$output->writeln('Installing Highlight assets.');
$targetDir = $bundlesDir . 'highlight-extra';
$namespaceParts = explode('\\', __NAMESPACE__);
array_pop($namespaceParts);
$output->writeln(sprintf('Installing assets for <comment>%s</comment> into <comment>%s</comment>', implode('\\', $namespaceParts), $targetDir));
$filesystem->remove($targetDir);
$filesystem->mkdir($targetDir, 0777);
$filesystem->mkdir($targetDir . '/css', 0777);
foreach (Pygmentize::styles() as $style => $styleName) {
file_put_contents($targetDir . '/css/' . $style . '.css', Pygmentize::getStyle($style));
}
}
/**
* Parses a token and returns a node.
*
* @param \Twig_Token $token A Twig_Token instance
* @throws \Exception
* @throws \Twig_Error_Syntax
* @return \Twig_NodeInterface A Twig_NodeInterface instance
*/
public function parse(\Twig_Token $token)
{
$lineNo = $token->getLine();
$stream = $this->parser->getStream();
$pygmentizeLexers = array_keys(Pygmentize::lexers());
$acceptedLexers = array();
foreach ($pygmentizeLexers as $lexer) {
$k = str_replace('+', '', $lexer);
$k = str_replace('-', '', $k);
$k = str_replace(' ', '', $k);
$acceptedLexers[$k] = $lexer;
}
$additionalLexers = array('twig' => 'jinja', 'twightml' => 'html+jinja', 'htmltwig' => 'html+jinja', 'composer' => 'json', 'objcpp' => 'obj-c++', 'objectivecpp' => 'objective-c++');
$lexer = null;
if (!$stream->test(\Twig_Token::BLOCK_END_TYPE)) {
if ($stream->test(\Twig_Token::BLOCK_END_TYPE)) {
throw new \Twig_Error_Syntax('A lexer is needed for highlighting. ', $stream->getCurrent()->getLine(), $stream->getFilename());
}
$lexer = $this->parser->getExpressionParser()->parseExpression();
if (array_key_exists($lexer->getAttribute('name'), $acceptedLexers)) {
$lexer->setAttribute('name', $acceptedLexers[$lexer->getAttribute('name')]);
} else {
if (array_key_exists($lexer->getAttribute('name'), $additionalLexers)) {
$lexer->setAttribute('name', $additionalLexers[$lexer->getAttribute('name')]);
} else {
throw new \Twig_Error_Syntax('Unexpected lexer: ' . $lexer->getAttribute('name'), $stream->getCurrent()->getLine(), $stream->getFilename());
}
}
}
$stream->expect(\Twig_Token::BLOCK_END_TYPE);
$source = $this->parser->subparse(array($this, 'decideBlockEnd'), true);
if (!$source instanceof \Twig_Node && !$source instanceof \Twig_Node_Text && !$source instanceof \Twig_Node_Expression) {
throw new \Twig_Error_Syntax('A message inside a highlight tag must be a simple text.', $source->getLine(), $stream->getFilename());
}
$stream->expect(\Twig_Token::BLOCK_END_TYPE);
return new HighlightNode($source, $lexer, $lineNo, $this->getTag());
}
