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   1  <?php
   2  
   3  /**
   4  * @package   s9e\TextFormatter
   5  * @copyright Copyright (c) 2010-2022 The s9e authors
   6  * @license   http://www.opensource.org/licenses/mit-license.php The MIT License
   7  */
   8  namespace s9e\TextFormatter\Configurator\TemplateNormalizations;
   9  
  10  use DOMAttr;
  11  use s9e\TextFormatter\Configurator\Helpers\AVTHelper;
  12  use s9e\TextFormatter\Configurator\Helpers\XPathHelper;
  13  
  14  class MinifyXPathExpressions extends AbstractNormalization
  15  {
  16      /**
  17      * {@inheritdoc}
  18      */
  19      protected $queries = ['//@*[contains(., " ") or contains(., ")")]'];
  20  
  21      /**
  22      * {@inheritdoc}
  23      */
  24  	protected function normalizeAttribute(DOMAttr $attribute)
  25      {
  26          $element = $attribute->parentNode;
  27          if (!$this->isXsl($element))
  28          {
  29              // Replace XPath expressions in non-XSL elements
  30              $this->replaceAVT($attribute);
  31          }
  32          elseif (in_array($attribute->nodeName, ['match', 'select', 'test'], true))
  33          {
  34              // Replace the content of match, select and test attributes of an XSL element
  35              $expr = XPathHelper::minify($attribute->nodeValue);
  36              $element->setAttribute($attribute->nodeName, $expr);
  37          }
  38      }
  39  
  40      /**
  41      * Minify XPath expressions in given attribute
  42      *
  43      * @param  DOMAttr $attribute
  44      * @return void
  45      */
  46  	protected function replaceAVT(DOMAttr $attribute)
  47      {
  48          AVTHelper::replace(
  49              $attribute,
  50              function ($token)
  51              {
  52                  if ($token[0] === 'expression')
  53                  {
  54                      $token[1] = XPathHelper::minify($token[1]);
  55                  }
  56  
  57                  return $token;
  58              }
  59          );
  60      }
  61  }