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