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<?php |
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namespace League\CLImate\Decorator\Parser; |
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use League\CLImate\Util\Helper; |
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class Ansi extends Parser |
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{ |
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/** |
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* Wrap the string in the current style |
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* |
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* @param string $str |
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* |
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* @return string |
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*/ |
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556 |
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public function apply($str) |
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{ |
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return $this->start() . $this->parse($str) . $this->end(); |
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} |
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/** |
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* Get the string that begins the style |
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* |
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* @param string $codes |
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* @return string |
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*/ |
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protected function start($codes = null) |
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{ |
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$codes = $codes ?: $this->currentCode(); |
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$codes = $this->codeStr($codes); |
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return $this->wrapCodes($codes); |
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} |
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/** |
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* Get the string that ends the style |
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* |
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* @param string|array $codes |
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* @return string |
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*/ |
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protected function end($codes = null) |
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{ |
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if (empty($codes)) { |
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$codes = [0]; |
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} else { |
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$codes = Helper::toArray($codes); |
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// Reset everything back to normal up front |
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array_unshift($codes, 0); |
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} |
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return $this->wrapCodes($this->codeStr($codes)); |
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} |
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/** |
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* Wrap the code string in the full escaped sequence |
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* |
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* @param string $codes |
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* |
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* @return string |
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*/ |
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protected function wrapCodes($codes) |
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{ |
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return "\e[{$codes}m"; |
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} |
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/** |
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* Parse the string for tags and replace them with their codes |
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* |
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* @param string $str |
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* |
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* @return string |
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*/ |
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protected function parse($str) |
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{ |
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$count = preg_match_all($this->tags->regex(), $str, $matches); |
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// If we didn't find anything, return the string right back |
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if (!$count || !is_array($matches)) { |
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return $str; |
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} |
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// All we want is the array of actual strings matched |
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$matches = reset($matches); |
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return $this->parseTags($str, $matches); |
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} |
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/** |
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* Parse the given string for the tags and replace them with the appropriate codes |
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* |
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* @param string $str |
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* @param array $tags |
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* |
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* @return string |
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*/ |
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protected function parseTags($str, $tags) |
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{ |
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// Let's keep a history of styles applied |
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$history = ($this->currentCode()) ? [$this->currentCode()] : []; |
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foreach ($tags as $tag) { |
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$str = $this->replaceTag($str, $tag, $history); |
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} |
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return $str; |
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} |
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/** |
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* Replace the tag in the str |
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* |
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* @param string $str |
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* @param string $tag |
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* @param array $history |
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* |
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* @return string |
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*/ |
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protected function replaceTag($str, $tag, &$history) |
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{ |
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// We will be replacing tags one at a time, can't pass this by reference |
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$replace_count = 1; |
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if (strpos($tag, '/')) { |
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// We are closing out the tag, pop off the last element and get the codes that are left |
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array_pop($history); |
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$replace = $this->end($history); |
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} else { |
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// We are starting a new tag, add it onto the history and replace with correct color code |
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$history[] = $this->tags->value($tag); |
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$replace = $this->start($this->tags->value($tag)); |
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} |
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return str_replace($tag, $replace, $str, $replace_count); |
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} |
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/** |
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* Stringify the codes |
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* |
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* @param mixed $codes |
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* |
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* @return string |
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*/ |
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556 |
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protected function codeStr($codes) |
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{ |
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// If we get something that is already a code string, just pass it back |
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if (!is_array($codes) && strpos($codes, ';')) { |
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return $codes; |
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} |
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556 |
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$codes = Helper::toArray($codes); |
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// Sort for the sake of consistency and testability |
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556 |
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sort($codes); |
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return implode(';', $codes); |
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} |
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/** |
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* Retrieve the current style code |
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* |
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* @return string |
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*/ |
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556 |
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protected function currentCode() |
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{ |
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return $this->codeStr($this->current); |
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} |
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} |
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thephpleague /
climate
