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vendor/symfony/console/Formatter/OutputFormatter.php
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282
vendor/symfony/console/Formatter/OutputFormatter.php
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<?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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* @author Roland Franssen <franssen.roland@gmail.com>
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*/
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class OutputFormatter implements WrappableOutputFormatterInterface
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{
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private $decorated;
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private $styles = [];
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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(bool $decorated = false, array $styles = [])
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{
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$this->decorated = $decorated;
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$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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return $this->formatAndWrap((string) $message, 0);
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}
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/**
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* {@inheritdoc}
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*/
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public function formatAndWrap(string $message, int $width)
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{
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$offset = 0;
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$output = '';
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$tagRegex = '[a-z][a-z0-9,_=;-]*+';
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$currentLineLength = 0;
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preg_match_all("#<(($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), $output, $width, $currentLineLength);
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$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 = $this->createStyleFromString($tag)) {
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$output .= $this->applyCurrentStyle($text, $output, $width, $currentLineLength);
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} elseif ($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), $output, $width, $currentLineLength);
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if (false !== strpos($output, "\0")) {
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return strtr($output, ["\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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* @return OutputFormatterStyle|false False if string is not format string
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*/
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private function createStyleFromString(string $string)
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{
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if (isset($this->styles[$string])) {
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return $this->styles[$string];
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}
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if (!preg_match_all('/([^=]+)=([^;]+)(;|$)/', $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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$match[0] = strtolower($match[0]);
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if ('fg' == $match[0]) {
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$style->setForeground(strtolower($match[1]));
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} elseif ('bg' == $match[0]) {
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$style->setBackground(strtolower($match[1]));
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} elseif ('options' === $match[0]) {
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preg_match_all('([^,;]+)', strtolower($match[1]), $options);
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$options = array_shift($options);
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foreach ($options as $option) {
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$style->setOption($option);
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}
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} else {
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return false;
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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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private function applyCurrentStyle(string $text, string $current, int $width, int &$currentLineLength): string
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{
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if ('' === $text) {
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return '';
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}
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if (!$width) {
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return $this->isDecorated() ? $this->styleStack->getCurrent()->apply($text) : $text;
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}
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if (!$currentLineLength && '' !== $current) {
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$text = ltrim($text);
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}
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if ($currentLineLength) {
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$prefix = substr($text, 0, $i = $width - $currentLineLength)."\n";
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$text = substr($text, $i);
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} else {
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$prefix = '';
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}
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preg_match('~(\\n)$~', $text, $matches);
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$text = $prefix.preg_replace('~([^\\n]{'.$width.'})\\ *~', "\$1\n", $text);
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$text = rtrim($text, "\n").($matches[1] ?? '');
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if (!$currentLineLength && '' !== $current && "\n" !== substr($current, -1)) {
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$text = "\n".$text;
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}
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$lines = explode("\n", $text);
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foreach ($lines as $line) {
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$currentLineLength += \strlen($line);
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if ($width <= $currentLineLength) {
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$currentLineLength = 0;
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}
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}
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if ($this->isDecorated()) {
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foreach ($lines as $i => $line) {
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$lines[$i] = $this->styleStack->getCurrent()->apply($line);
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}
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}
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return implode("\n", $lines);
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}
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}
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