235 lines
6.1 KiB
PHP
235 lines
6.1 KiB
PHP
<?php
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/*
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* This file is part of the Symfony package.
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*
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* (c) Fabien Potencier <fabien@symfony.com>
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*
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* For the full copyright and license information, please view the LICENSE
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* file that was distributed with this source code.
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*/
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namespace Symfony\Component\Console\Formatter;
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use Symfony\Component\Console\Exception\InvalidArgumentException;
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/**
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* Formatter class for console output.
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*
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* @author Konstantin Kudryashov <ever.zet@gmail.com>
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*/
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class OutputFormatter implements OutputFormatterInterface
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{
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private $decorated;
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private $styles = array();
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private $styleStack;
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/**
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* Escapes "<" special char in given text.
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*
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* @param string $text Text to escape
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*
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* @return string Escaped text
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*/
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public static function escape($text)
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{
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$text = preg_replace('/([^\\\\]?)</', '$1\\<', $text);
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return self::escapeTrailingBackslash($text);
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}
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/**
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* Escapes trailing "\" in given text.
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*
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* @param string $text Text to escape
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*
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* @return string Escaped text
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*
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* @internal
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*/
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public static function escapeTrailingBackslash($text)
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{
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if ('\\' === substr($text, -1)) {
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$len = strlen($text);
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$text = rtrim($text, '\\');
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$text = str_replace("\0", '', $text);
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$text .= str_repeat("\0", $len - strlen($text));
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}
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return $text;
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}
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/**
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* Initializes console output formatter.
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*
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* @param bool $decorated Whether this formatter should actually decorate strings
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* @param OutputFormatterStyleInterface[] $styles Array of "name => FormatterStyle" instances
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*/
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public function __construct($decorated = false, array $styles = array())
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{
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$this->decorated = (bool) $decorated;
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$this->setStyle('error', new OutputFormatterStyle('white', 'red'));
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$this->setStyle('info', new OutputFormatterStyle('green'));
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$this->setStyle('comment', new OutputFormatterStyle('yellow'));
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$this->setStyle('question', new OutputFormatterStyle('black', 'cyan'));
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foreach ($styles as $name => $style) {
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$this->setStyle($name, $style);
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}
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$this->styleStack = new OutputFormatterStyleStack();
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}
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/**
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* {@inheritdoc}
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*/
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public function setDecorated($decorated)
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{
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$this->decorated = (bool) $decorated;
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}
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/**
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* {@inheritdoc}
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*/
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public function isDecorated()
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{
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return $this->decorated;
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}
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/**
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* {@inheritdoc}
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*/
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public function setStyle($name, OutputFormatterStyleInterface $style)
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{
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$this->styles[strtolower($name)] = $style;
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}
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/**
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* {@inheritdoc}
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*/
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public function hasStyle($name)
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{
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return isset($this->styles[strtolower($name)]);
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}
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/**
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* {@inheritdoc}
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*/
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public function getStyle($name)
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{
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if (!$this->hasStyle($name)) {
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throw new InvalidArgumentException(sprintf('Undefined style: %s', $name));
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}
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return $this->styles[strtolower($name)];
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}
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/**
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* {@inheritdoc}
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*/
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public function format($message)
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{
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$message = (string) $message;
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$offset = 0;
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$output = '';
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$tagRegex = '[a-z][a-z0-9_=;-]*+';
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preg_match_all("#<(($tagRegex) | /($tagRegex)?)>#ix", $message, $matches, PREG_OFFSET_CAPTURE);
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foreach ($matches[0] as $i => $match) {
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$pos = $match[1];
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$text = $match[0];
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if (0 != $pos && '\\' == $message[$pos - 1]) {
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continue;
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}
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// add the text up to the next tag
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$output .= $this->applyCurrentStyle(substr($message, $offset, $pos - $offset));
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$offset = $pos + strlen($text);
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// opening tag?
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if ($open = '/' != $text[1]) {
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$tag = $matches[1][$i][0];
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} else {
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$tag = isset($matches[3][$i][0]) ? $matches[3][$i][0] : '';
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}
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if (!$open && !$tag) {
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// </>
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$this->styleStack->pop();
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} elseif (false === $style = $this->createStyleFromString(strtolower($tag))) {
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$output .= $this->applyCurrentStyle($text);
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} elseif ($open) {
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$this->styleStack->push($style);
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} else {
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$this->styleStack->pop($style);
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}
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}
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$output .= $this->applyCurrentStyle(substr($message, $offset));
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if (false !== strpos($output, "\0")) {
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return strtr($output, array("\0" => '\\', '\\<' => '<'));
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}
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return str_replace('\\<', '<', $output);
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}
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/**
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* @return OutputFormatterStyleStack
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*/
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public function getStyleStack()
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{
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return $this->styleStack;
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}
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/**
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* Tries to create new style instance from string.
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*
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* @param string $string
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*
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* @return OutputFormatterStyle|false false if string is not format string
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*/
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private function createStyleFromString($string)
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{
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if (isset($this->styles[$string])) {
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return $this->styles[$string];
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}
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if (!preg_match_all('/([^=]+)=([^;]+)(;|$)/', strtolower($string), $matches, PREG_SET_ORDER)) {
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return false;
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}
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$style = new OutputFormatterStyle();
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foreach ($matches as $match) {
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array_shift($match);
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if ('fg' == $match[0]) {
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$style->setForeground($match[1]);
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} elseif ('bg' == $match[0]) {
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$style->setBackground($match[1]);
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} else {
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try {
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$style->setOption($match[1]);
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} catch (\InvalidArgumentException $e) {
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return false;
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}
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}
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}
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return $style;
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}
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/**
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* Applies current style from stack to text, if must be applied.
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*
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* @param string $text Input text
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*
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* @return string Styled text
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*/
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private function applyCurrentStyle($text)
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{
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return $this->isDecorated() && strlen($text) > 0 ? $this->styleStack->getCurrent()->apply($text) : $text;
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}
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}
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