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<?php |
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/** |
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* This file is part of Collision. |
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* |
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* (c) Nuno Maduro <[email protected]> |
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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 NunoMaduro\Collision; |
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use NunoMaduro\Collision\Exceptions\ShouldNotHappen; |
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/** |
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* This is an Collision Console Color implementation. |
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* |
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* Code originally from { JakubOnderka\\PhpConsoleColor }. But the package got deprecated. |
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* |
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* @internal |
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* |
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* @final |
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*/ |
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class ConsoleColor |
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{ |
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const FOREGROUND = 38; |
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const BACKGROUND = 48; |
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const COLOR256_REGEXP = '~^(bg_)?color_([0-9]{1,3})$~'; |
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const RESET_STYLE = 0; |
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/** @var bool */ |
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private $isSupported; |
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/** @var bool */ |
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private $forceStyle = false; |
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/** @var array */ |
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private $styles = [ |
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'none' => null, |
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'bold' => '1', |
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'dark' => '2', |
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'italic' => '3', |
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'underline' => '4', |
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'blink' => '5', |
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'reverse' => '7', |
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'concealed' => '8', |
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'default' => '39', |
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'black' => '30', |
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'red' => '31', |
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'green' => '32', |
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'yellow' => '33', |
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'blue' => '34', |
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'magenta' => '35', |
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'cyan' => '36', |
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'light_gray' => '37', |
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'dark_gray' => '90', |
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'light_red' => '91', |
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'light_green' => '92', |
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'light_yellow' => '93', |
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'light_blue' => '94', |
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'light_magenta' => '95', |
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'light_cyan' => '96', |
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'white' => '97', |
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'bg_default' => '49', |
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'bg_black' => '40', |
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'bg_red' => '41', |
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'bg_green' => '42', |
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'bg_yellow' => '43', |
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'bg_blue' => '44', |
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'bg_magenta' => '45', |
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'bg_cyan' => '46', |
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'bg_light_gray' => '47', |
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'bg_dark_gray' => '100', |
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'bg_light_red' => '101', |
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'bg_light_green' => '102', |
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'bg_light_yellow' => '103', |
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'bg_light_blue' => '104', |
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'bg_light_magenta' => '105', |
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'bg_light_cyan' => '106', |
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'bg_white' => '107', |
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]; |
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/** @var array */ |
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private $themes = []; |
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public function __construct() |
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{ |
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$this->isSupported = $this->isSupported(); |
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} |
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/** |
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* @param string|array $style |
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* @param string $text |
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* |
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* @return string |
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* |
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* @throws InvalidStyleException |
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* @throws \InvalidArgumentException |
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*/ |
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public function apply($style, $text) |
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{ |
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if (!$this->isStyleForced() && !$this->isSupported()) { |
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return $text; |
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} |
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if (is_string($style)) { |
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$style = [$style]; |
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} |
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if (!is_array($style)) { |
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throw new \InvalidArgumentException('Style must be string or array.'); |
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} |
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$sequences = []; |
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foreach ($style as $s) { |
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if (isset($this->themes[$s])) { |
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$sequences = array_merge($sequences, $this->themeSequence($s)); |
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} elseif ($this->isValidStyle($s)) { |
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$sequences[] = $this->styleSequence($s); |
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} else { |
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throw new ShouldNotHappen(); |
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} |
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} |
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$sequences = array_filter($sequences, function ($val) { |
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return $val !== null; |
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}); |
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if (empty($sequences)) { |
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return $text; |
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} |
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return $this->escSequence(implode(';', $sequences)) . $text . $this->escSequence(self::RESET_STYLE); |
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} |
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/** |
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* @param bool $forceStyle |
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*/ |
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public function setForceStyle($forceStyle) |
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{ |
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$this->forceStyle = (bool) $forceStyle; |
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} |
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/** |
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* @return bool |
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*/ |
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public function isStyleForced() |
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{ |
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return $this->forceStyle; |
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} |
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public function setThemes(array $themes) |
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{ |
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$this->themes = []; |
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foreach ($themes as $name => $styles) { |
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$this->addTheme($name, $styles); |
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} |
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} |
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/** |
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* @param string $name |
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* @param array|string $styles |
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*/ |
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public function addTheme($name, $styles) |
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{ |
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if (is_string($styles)) { |
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$styles = [$styles]; |
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} |
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if (!is_array($styles)) { |
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throw new \InvalidArgumentException('Style must be string or array.'); |
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} |
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foreach ($styles as $style) { |
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if (!$this->isValidStyle($style)) { |
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throw new InvalidStyleException($style); |
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} |
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} |
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$this->themes[$name] = $styles; |
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} |
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/** |
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* @return array |
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*/ |
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public function getThemes() |
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{ |
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return $this->themes; |
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} |
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/** |
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* @param string $name |
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* |
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* @return bool |
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*/ |
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public function hasTheme($name) |
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{ |
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return isset($this->themes[$name]); |
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} |
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/** |
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* @param string $name |
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*/ |
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public function removeTheme($name) |
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{ |
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unset($this->themes[$name]); |
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} |
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/** |
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* @return bool |
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*/ |
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public function isSupported() |
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{ |
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if (DIRECTORY_SEPARATOR === '\\') { |
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View Code Duplication |
if (function_exists('sapi_windows_vt100_support') && @sapi_windows_vt100_support(STDOUT)) { |
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return true; |
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} elseif (getenv('ANSICON') !== false || getenv('ConEmuANSI') === 'ON') { |
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return true; |
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} |
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return false; |
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} else { |
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return function_exists('posix_isatty') && @posix_isatty(STDOUT); |
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} |
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} |
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/** |
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* @return bool |
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*/ |
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public function are256ColorsSupported() |
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{ |
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View Code Duplication |
if (DIRECTORY_SEPARATOR === '\\') { |
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return function_exists('sapi_windows_vt100_support') && @sapi_windows_vt100_support(STDOUT); |
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} else { |
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return strpos(getenv('TERM'), '256color') !== false; |
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} |
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} |
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/** |
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* @return array |
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*/ |
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public function getPossibleStyles() |
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{ |
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return array_keys($this->styles); |
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} |
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/** |
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* @param string $name |
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* |
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* @return string[] |
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*/ |
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private function themeSequence($name) |
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{ |
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$sequences = []; |
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foreach ($this->themes[$name] as $style) { |
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$sequences[] = $this->styleSequence($style); |
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} |
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return $sequences; |
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} |
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/** |
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* @param string $style |
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* |
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* @return string |
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*/ |
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private function styleSequence($style) |
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{ |
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if (array_key_exists($style, $this->styles)) { |
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return $this->styles[$style]; |
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} |
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if (!$this->are256ColorsSupported()) { |
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return null; |
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} |
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preg_match(self::COLOR256_REGEXP, $style, $matches); |
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$type = $matches[1] === 'bg_' ? self::BACKGROUND : self::FOREGROUND; |
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$value = $matches[2]; |
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return "$type;5;$value"; |
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} |
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/** |
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* @param string $style |
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* |
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* @return bool |
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*/ |
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private function isValidStyle($style) |
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{ |
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return array_key_exists($style, $this->styles) || preg_match(self::COLOR256_REGEXP, $style); |
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} |
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/** |
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* @param string|int $value |
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* |
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* @return string |
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*/ |
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private function escSequence($value) |
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{ |
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return "\033[{$value}m"; |
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} |
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} |
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Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation.
You can also find more detailed suggestions in the “Code” section of your repository.