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<?php |
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/** |
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* @package s9e\TextFormatter |
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* @copyright Copyright (c) 2010-2017 The s9e Authors |
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* @license http://www.opensource.org/licenses/mit-license.php The MIT License |
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*/ |
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namespace s9e\TextFormatter\Configurator\TemplateNormalizations; |
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use DOMNode; |
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/** |
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* Convert simple expressions in curly brackets in text into xsl:value-of elements |
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* |
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* Will replace |
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* <span>{$FOO}{@bar}</span> |
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* with |
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* <span><xsl:value-of value="$FOO"/><xsl:value-of value="@bar"/></span> |
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*/ |
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class ConvertCurlyExpressionsInText extends AbstractNormalization |
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{ |
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/** |
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* {@inheritdoc} |
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*/ |
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protected $queries = ['//*[namespace-uri() != $XSL]/text()[contains(., "{@") or contains(., "{$")]']; |
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/** |
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* Insert a text node before given node |
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* |
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* @param string $text |
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* @param DOMNode $node |
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* @return void |
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*/ |
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protected function insertTextBefore($text, $node) |
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{ |
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$node->parentNode->insertBefore($this->createTextNode($text), $node); |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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protected function normalizeNode(DOMNode $node) |
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{ |
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$parentNode = $node->parentNode; |
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preg_match_all( |
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'#\\{([$@][-\\w]+)\\}#', |
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$node->textContent, |
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$matches, |
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PREG_SET_ORDER | PREG_OFFSET_CAPTURE |
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); |
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$lastPos = 0; |
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foreach ($matches as $m) |
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{ |
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$pos = $m[0][1]; |
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// Catch up to current position |
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if ($pos > $lastPos) |
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{ |
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$text = substr($node->textContent, $lastPos, $pos - $lastPos); |
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$this->insertTextBefore($text, $node); |
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} |
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$lastPos = $pos + strlen($m[0][0]); |
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// Add the xsl:value-of element |
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$parentNode |
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->insertBefore($this->createElement('xsl:value-of'), $node) |
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->setAttribute('select', $m[1][0]); |
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} |
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// Append the rest of the text |
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$text = substr($node->textContent, $lastPos); |
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$this->insertTextBefore($text, $node); |
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// Now remove the old text node |
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$parentNode->removeChild($node); |
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} |
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} |
s9e /
TextFormatter
