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|
<?php
namespace KzykHys\Pygments;
use Symfony\Component\Process\Process;
use Symfony\Component\Process\ProcessBuilder;
/**
* Pygments.php - A Thin Wrapper for the Python Pygments
*
* @author Kazuyuki Hayashi <hayashi@valnur.net>
*/
class Pygments
{
/**
* @var string
*/
private $pygmentize;
/**
* Constructor
*
* @param string $pygmentize The path to pygmentize command
*/
public function __construct($pygmentize = 'pygmentize')
{
$this->pygmentize = $pygmentize;
}
/**
* Highlight the input code
*
* @param string $code The code to highlight
* @param string $lexer The name of the lexer (php, html,...)
* @param string $formatter The name of the formatter (html, ansi,...)
* @param array $options An array of options
*
* @return string
*/
public function highlight($code, $lexer = null, $formatter = null, $options = array())
{
$builder = $this->createProcessBuilder();
if ($lexer) {
$builder->add('-l')->add($lexer);
} else {
$builder->add('-g');
}
if ($formatter) {
$builder->add('-f')->add($formatter);
}
if (count($options)) {
$arg = array();
foreach ($options as $key => $value) {
$arg[] = sprintf('%s=%s', $key, $value);
}
$builder->add('-O')->add(implode(',', $arg));
}
$process = $builder->getProcess()->setStdin($code);
return $this->getOutput($process);
}
/**
* Gets style definition
*
* @param string $style The name of the style (default, colorful,...)
* @param string $selector The css selector
*
* @return string
*/
public function getCss($style = 'default', $selector = null)
{
$builder = $this->createProcessBuilder();
$builder->add('-f')->add('html');
$builder->add('-S')->add($style);
if ($selector) {
$builder->add('-a')->add($selector);
}
return $this->getOutput($builder->getProcess());
}
/**
* Guesses a lexer name based solely on the given filename
*
* @param string $fileName The file does not need to exist, or be readable.
*
* @return string
*/
public function guessLexer($fileName)
{
$process = $this->createProcessBuilder()
->setArguments(array('-N', $fileName))
->getProcess();
return trim($this->getOutput($process));
}
/**
* Gets a list of lexers
*
* @return array
*/
public function getLexers()
{
$process = $this->createProcessBuilder()
->setArguments(array('-L', 'lexer'))
->getProcess();
$output = $this->getOutput($process);
return $this->parseList($output);
}
/**
* Gets a list of formatters
*
* @return array
*/
public function getFormatters()
{
$process = $this->createProcessBuilder()
->setArguments(array('-L', 'formatter'))
->getProcess();
$output = $this->getOutput($process);
return $this->parseList($output);
}
/**
* Gets a list of styles
*
* @return array
*/
public function getStyles()
{
$process = $this->createProcessBuilder()
->setArguments(array('-L', 'style'))
->getProcess();
$output = $this->getOutput($process);
return $this->parseList($output);
}
/**
* @return ProcessBuilder
*/
protected function createProcessBuilder()
{
return ProcessBuilder::create()->setPrefix($this->pygmentize);
}
/**
* @param Process $process
* @throws \RuntimeException
* @return string
*/
protected function getOutput(Process $process)
{
$process->run();
if (!$process->isSuccessful()) {
throw new \RuntimeException($process->getErrorOutput());
}
return $process->getOutput();
}
/**
* @param string $input
* @return array
*/
protected function parseList($input)
{
$list = array();
if (preg_match_all('/^\* (.*?):\r?\n *([^\r\n]*?)$/m', $input, $matches, PREG_SET_ORDER)) {
foreach ($matches as $match) {
$names = explode(',', $match[1]);
foreach ($names as $name) {
$list[trim($name)] = $match[2];
}
}
}
return $list;
}
}
|
