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<?php |
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namespace CliColorizer; |
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class Colorizer implements ColorizerInterface |
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{ |
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public const FOREGROUND_BLACK = '0;30'; |
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public const FOREGROUND_RED = '0;31'; |
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public const FOREGROUND_GREEN = '0;32'; |
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public const FOREGROUND_BROWN = '0;33'; |
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public const FOREGROUND_BLUE = '0;34'; |
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public const FOREGROUND_MAGENTA = '0;35'; |
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public const FOREGROUND_CYAN = '0;36'; |
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public const FOREGROUND_LIGHTGREY = '0;37'; |
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public const FOREGROUND_DARKGREY = '1;30'; |
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public const FOREGROUND_LIGHTRED = '1;31'; |
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public const FOREGROUND_LIGHTGREEN = '1;32'; |
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public const FOREGROUND_YELLOW = '1;33'; |
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public const FOREGROUND_LIGHTBLUE = '1;34'; |
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public const FOREGROUND_PURPLE = '1;35'; |
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public const FOREGROUND_LIGHTCYAN = '1;36'; |
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public const FOREGROUND_WHITE = '1;37'; |
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public const BACKGROUND_BLACK = 40; |
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public const BACKGROUND_RED = 41; |
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public const BACKGROUND_GREEN = 42; |
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public const BACKGROUND_YELLOW = 43; |
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public const BACKGROUND_BLUE = 44; |
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public const BACKGROUND_MAGENTA = 45; |
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public const BACKGROUND_CYAN = 46; |
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public const BACKGROUND_LIGHTGREY = 47; |
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/** @var string */ |
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protected $foregroundColor; |
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/** @var string */ |
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protected $foregroundText; |
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/** @var string */ |
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protected $backgroundColor; |
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/** @var string */ |
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protected $backgroundText; |
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/** @var array */ |
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public static $foregroundTexts = [ |
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'0;30' => 'black', |
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'0;31' => 'red', |
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'0;32' => 'green', |
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'0;33' => 'brown', |
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'0;34' => 'blue', |
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'0;35' => 'magenta', |
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'0;36' => 'cyan', |
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'0;37' => 'lightGrey', |
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'1;30' => 'darkGrey', |
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'1;31' => 'lightRed', |
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'1;32' => 'lightGreen', |
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'1;33' => 'yellow', |
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'1;34' => 'lightBlue', |
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'1;35' => 'lightPurple', |
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'1;36' => 'lightCyan', |
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'1;37' => 'white', |
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]; |
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/** @var array */ |
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public static $backgroundTexts = [ |
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40 => 'black', |
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41 => 'red', |
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42 => 'green', |
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43 => 'yellow', |
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44 => 'blue', |
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45 => 'magenta', |
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46 => 'cyan', |
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47 => 'lightgrey' |
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]; |
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/** |
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* @inheritDoc |
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*/ |
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public function color( |
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string $sentence, |
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string $foreground = null, |
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int $background = null, |
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bool $endOfLine = false |
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) { |
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$this->setForegroundCode($foreground); |
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$this->setBackgroundColor($background); |
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$sentence = $endOfLine ? $sentence . PHP_EOL : $sentence; |
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return $this->doColorize($sentence, [$foreground, $background]); |
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} |
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/** |
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* @param string $foregroundCode |
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* |
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* @param null $text |
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* |
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* @return bool|Colorizer |
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*/ |
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public function setForegroundCode(string $foregroundCode, $text = null) |
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{ |
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$this->foregroundColor = $foregroundCode; |
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if (!array_key_exists($this->foregroundColor, self::$foregroundTexts)) { |
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// todo: throw a custom exception |
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return false; |
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} |
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if (null === $text) { |
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$this->foregroundText = self::$foregroundTexts[$foregroundCode] ?? 'unknown foreground color'; |
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return $this; |
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} |
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$this->foregroundText = $text; |
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return $this; |
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} |
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/** |
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* @param string|int $backgroundColor |
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* @param null $text |
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* |
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* @return bool|Colorizer |
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*/ |
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public function setBackgroundColor($backgroundColor, $text = null) |
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{ |
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if (is_int($backgroundColor)) { |
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$backgroundColor = (string) $backgroundColor; |
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} |
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$this->backgroundColor = $backgroundColor; |
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if ($this->backgroundColor < self::BACKGROUND_BLACK || $this->backgroundColor > self::BACKGROUND_LIGHTGREY) { |
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// todo: throw a custom exception |
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return false; |
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} |
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if (null === $text) { |
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$this->backgroundText = self::$backgroundTexts[$backgroundColor] ?? 'unknown background color'; |
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return $this; |
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} |
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$this->backgroundText = $text; |
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return $this; |
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} |
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/** |
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* @return array |
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*/ |
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public function getForegroundColors(): array |
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{ |
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return array_keys(self::$foregroundTexts); |
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} |
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/** |
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* @return array |
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*/ |
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public function getBackgroundColors(): array |
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{ |
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return array_keys(self::$backgroundTexts); |
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} |
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/** |
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* @param string $sentence |
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* @param array $arguments |
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* |
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* @return string |
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*/ |
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private function doColorize(string $sentence, array $arguments): string |
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{ |
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$sentence = str_pad($sentence, 15, ' ', STR_PAD_BOTH); |
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[$foreground, $background] = $arguments; |
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$coloredOutput = ''; |
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if (array_key_exists($foreground, self::$foregroundTexts)) { |
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$coloredOutput .= "\033[" . $foreground . ';'; |
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} else{ |
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// todo: throw an exception or set default value |
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} |
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if (array_key_exists($background, self::$backgroundTexts)) { |
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$coloredOutput .= $background . 'm'; |
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} |
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$coloredOutput .= $sentence . "\033[0m"; |
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return $coloredOutput . PHP_EOL; |
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} |
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/** |
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* @return string |
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*/ |
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public function getForegroundText(): string |
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{ |
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return $this->foregroundText; |
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} |
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/** |
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* @return string |
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*/ |
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public function getBackgroundText(): string |
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{ |
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return $this->backgroundText; |
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} |
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} |
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This check marks access to variables or properties that have not been declared yet. While PHP has no explicit notion of declaring a variable, accessing it before a value is assigned to it is most likely a bug.