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<?php |
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/** |
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* File containing the {@see Mailcode_Parser_Safeguard_Formatter} class. |
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* |
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* @package Mailcode |
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* @subpackage Parser |
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* @see Mailcode_Parser_Safeguard_Formatter |
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*/ |
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declare(strict_types=1); |
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namespace Mailcode; |
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use AppUtils\ConvertHelper; |
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/** |
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* Abstract base class for safeguard formatters: these |
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* are used to apply diverse formattings to the string |
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* being parsed. |
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* |
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* @package Mailcode |
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* @subpackage Parser |
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* @author Sebastian Mordziol <[email protected]> |
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*/ |
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abstract class Mailcode_Parser_Safeguard_Formatter |
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{ |
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/** |
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* @var Mailcode_Parser_Safeguard |
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*/ |
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protected $safeguard; |
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public function __construct(Mailcode_Parser_Safeguard $safeguard) |
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{ |
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$this->safeguard = $safeguard; |
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} |
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abstract public function format(string $subject) : string; |
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/** |
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* Resolves a list of positions of needle in the haystack. |
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* |
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* @param string $needle |
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* @param string $haystack |
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* @return int[] |
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*/ |
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protected function resolvePositions(string $needle, string $haystack) : array |
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{ |
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$lastPos = 0; |
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$positions = array(); |
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while (($lastPos = mb_strpos($haystack, $needle, $lastPos))!== false) |
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{ |
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$positions[] = $lastPos; |
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$lastPos = $lastPos + mb_strlen($needle); |
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} |
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return $positions; |
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} |
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/** |
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* Resolves the newline character used in the string. |
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* |
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* @param string $subject |
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* @return string |
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*/ |
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protected function resolveNewlineChar(string $subject) : string |
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{ |
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$eol = ConvertHelper::detectEOLCharacter($subject); |
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if($eol) |
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{ |
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return $eol->getCharacter(); |
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} |
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return PHP_EOL; |
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} |
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/** |
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* Resolves the list of placeholder strings that need |
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* to be formatted. This includes only commands that |
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* do not generate content. |
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* |
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* @return string[] |
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*/ |
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protected function resolvePlaceholderStrings() : array |
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{ |
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$placeholders = $this->filterPlaceholders(); |
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$result = array(); |
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foreach($placeholders as $placeholder) |
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{ |
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$result[] = $placeholder->getReplacementText(); |
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} |
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return $result; |
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} |
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/** |
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* @return \Mailcode\Mailcode_Parser_Safeguard_Placeholder[] |
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*/ |
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protected function filterPlaceholders() |
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{ |
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return $this->safeguard->getPlaceholders(); |
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} |
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} |
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