MediaWiki 1.30.2

[autoinstallsdev/mediawiki.git] / vendor / wikimedia / remex-html / RemexHtml / Tokenizer / LazyAttributes.php

diff --git a/vendor/wikimedia/remex-html/RemexHtml/Tokenizer/LazyAttributes.php b/vendor/wikimedia/remex-html/RemexHtml/Tokenizer/LazyAttributes.php
new file mode 100644 (file)
index 0000000..92299e5
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+++ b/vendor/wikimedia/remex-html/RemexHtml/Tokenizer/LazyAttributes.php
@@ -0,0 +1,100 @@
+<?php
+
+namespace RemexHtml\Tokenizer;
+
+/**
+ * An Attributes implementation which defers interpretation of regex match
+ * results until the caller requires them.
+ *
+ * This should not be directly instantiated outside of Tokenizer.
+ */
+class LazyAttributes implements Attributes {
+       private $tokenizer;
+       private $data;
+       private $attributes;
+       private $attrObjects;
+
+       public function __construct( $data, callable $interpreter ) {
+               $this->interpreter = $interpreter;
+               $this->data = $data;
+       }
+
+       private function init() {
+               if ( $this->attributes === null ) {
+                       $func = $this->interpreter;
+                       $this->attributes = $func( $this->data );
+                       $this->interpreter = null;
+               }
+       }
+
+       public function offsetExists( $offset ) {
+               if ( $this->attributes === null ) {
+                       $this->init();
+               }
+               return isset( $this->attributes[$offset] );
+       }
+
+       public function &offsetGet( $offset ) {
+               if ( $this->attributes === null ) {
+                       $this->init();
+               }
+               return $this->attributes[$offset];
+       }
+
+       public function offsetSet( $offset, $value ) {
+               if ( $this->attributes === null ) {
+                       $this->init();
+               }
+               $this->attributes[$offset] = $value;
+       }
+
+       public function offsetUnset( $offset ) {
+               if ( $this->attributes === null ) {
+                       $this->init();
+               }
+               unset( $this->attributes[$offset] );
+       }
+
+       public function getValues() {
+               if ( $this->attributes === null ) {
+                       $this->init();
+               }
+               return $this->attributes;
+       }
+
+       public function getObjects() {
+               if ( $this->attrObjects === null ) {
+                       if ( $this->attributes === null ) {
+                               $this->init();
+                       }
+                       $result = [];
+                       foreach ( $this->attributes as $name => $value ) {
+                               $result[$name] = new Attribute( $name, null, null, $name, $value );
+                       }
+                       $this->attrObjects = $result;
+               }
+               return $this->attrObjects;
+       }
+
+       public function count() {
+               return is_object( $this->data ) ? $this->data->count() : count( $this->data );
+       }
+
+       public function getIterator() {
+               if ( $this->attributes === null ) {
+                       $this->init();
+               }
+               return new \ArrayIterator( $this->attributes );
+       }
+
+       public function merge( Attributes $other ) {
+               if ( $this->attributes === null ) {
+                       $this->init();
+               }
+               foreach ( $other as $name => $value ) {
+                       if ( !isset( $this->attributes[$name] ) ) {
+                               $this->attributes[$name] = $value;
+                       }
+               }
+       }
+}