includes/tidy/RemexCompatFormatter.php

   1 <?php
   2
   3 namespace MediaWiki\Tidy;
   4
   5 use RemexHtml\HTMLData;
   6 use RemexHtml\Serializer\HtmlFormatter;
   7 use RemexHtml\Serializer\SerializerNode;
   8
   9 /**
  10  * @internal
  11  */
  12 class RemexCompatFormatter extends HtmlFormatter {
  13         private static $markedEmptyElements = [
  14                 'li' => true,
  15                 'p' => true,
  16                 'tr' => true,
  17         ];
  18
  19         public function __construct( $options = [] ) {
  20                 parent::__construct( $options );
  21                 $this->attributeEscapes["\xc2\xa0"] = '&#160;';
  22                 unset( $this->attributeEscapes["&"] );
  23                 $this->textEscapes["\xc2\xa0"] = '&#160;';
  24                 unset( $this->textEscapes["&"] );
  25         }
  26
  27         public function startDocument( $fragmentNamespace, $fragmentName ) {
  28                 return '';
  29         }
  30
  31         public function element( SerializerNode $parent, SerializerNode $node, $contents ) {
  32                 $data = $node->snData;
  33                 if ( $data && $data->isPWrapper ) {
  34                         if ( $data->nonblankNodeCount ) {
  35                                 return "<p>$contents</p>";
  36                         } else {
  37                                 return $contents;
  38                         }
  39                 }
  40
  41                 $name = $node->name;
  42                 $attrs = $node->attrs;
  43                 if ( isset( self::$markedEmptyElements[$name] ) && $attrs->count() === 0 ) {
  44                         if ( strspn( $contents, "\t\n\f\r " ) === strlen( $contents ) ) {
  45                                 return "<{$name} class=\"mw-empty-elt\">$contents</{$name}>";
  46                         }
  47                 }
  48
  49                 $s = "<$name";
  50                 foreach ( $attrs->getValues() as $attrName => $attrValue ) {
  51                         $encValue = strtr( $attrValue, $this->attributeEscapes );
  52                         $s .= " $attrName=\"$encValue\"";
  53                 }
  54                 if ( $node->namespace === HTMLData::NS_HTML && isset( $this->voidElements[$name] ) ) {
  55                         $s .= ' />';
  56                         return $s;
  57                 }
  58
  59                 $s .= '>';
  60                 if ( $node->namespace === HTMLData::NS_HTML
  61                         && isset( $contents[0] ) && $contents[0] === "\n"
  62                         && isset( $this->prefixLfElements[$name] )
  63                 ) {
  64                         $s .= "\n$contents</$name>";
  65                 } else {
  66                         $s .= "$contents</$name>";
  67                 }
  68                 return $s;
  69         }
  70 }