extras/ConfigDoc/HTMLXSLTProcessor.php

   1 <?php
   2
   3 /**
   4  * Decorator/extender XSLT processor specifically for HTML documents.
   5  */
   6 class ConfigDoc_HTMLXSLTProcessor
   7 {
   8
   9     /**
  10      * Instance of XSLTProcessor
  11      */
  12     protected $xsltProcessor;
  13
  14     public function __construct($proc = false)
  15     {
  16         if ($proc === false) $proc = new XSLTProcessor();
  17         $this->xsltProcessor = $proc;
  18     }
  19
  20     /**
  21      * @note Allows a string $xsl filename to be passed
  22      */
  23     public function importStylesheet($xsl)
  24     {
  25         if (is_string($xsl)) {
  26             $xsl_file = $xsl;
  27             $xsl = new DOMDocument();
  28             $xsl->load($xsl_file);
  29         }
  30         return $this->xsltProcessor->importStylesheet($xsl);
  31     }
  32
  33     /**
  34      * Transforms an XML file into compatible XHTML based on the stylesheet
  35      * @param $xml XML DOM tree, or string filename
  36      * @return string HTML output
  37      * @todo Rename to transformToXHTML, as transformToHTML is misleading
  38      */
  39     public function transformToHTML($xml)
  40     {
  41         if (is_string($xml)) {
  42             $dom = new DOMDocument();
  43             $dom->load($xml);
  44         } else {
  45             $dom = $xml;
  46         }
  47         $out = $this->xsltProcessor->transformToXML($dom);
  48
  49         // fudges for HTML backwards compatibility
  50         // assumes that document is XHTML
  51         $out = str_replace('/>', ' />', $out); // <br /> not <br/>
  52         $out = str_replace(' xmlns=""', '', $out); // rm unnecessary xmlns
  53
  54         if (class_exists('Tidy')) {
  55             // cleanup output
  56             $config = array(
  57                 'indent'        => true,
  58                 'output-xhtml'  => true,
  59                 'wrap'          => 80
  60             );
  61             $tidy = new Tidy;
  62             $tidy->parseString($out, $config, 'utf8');
  63             $tidy->cleanRepair();
  64             $out = (string) $tidy;
  65         }
  66
  67         return $out;
  68     }
  69
  70     /**
  71      * Bulk sets parameters for the XSL stylesheet
  72      * @param array $options Associative array of options to set
  73      */
  74     public function setParameters($options)
  75     {
  76         foreach ($options as $name => $value) {
  77             $this->xsltProcessor->setParameter('', $name, $value);
  78         }
  79     }
  80
  81     /**
  82      * Forward any other calls to the XSLT processor
  83      */
  84     public function __call($name, $arguments)
  85     {
  86         call_user_func_array(array($this->xsltProcessor, $name), $arguments);
  87     }
  88
  89 }
  90
  91 // vim: et sw=4 sts=4