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-rw-r--r--library/HTMLPurifier/EntityParser.php153
1 files changed, 0 insertions, 153 deletions
diff --git a/library/HTMLPurifier/EntityParser.php b/library/HTMLPurifier/EntityParser.php
deleted file mode 100644
index 61529dcd9..000000000
--- a/library/HTMLPurifier/EntityParser.php
+++ /dev/null
@@ -1,153 +0,0 @@
-<?php
-
-// if want to implement error collecting here, we'll need to use some sort
-// of global data (probably trigger_error) because it's impossible to pass
-// $config or $context to the callback functions.
-
-/**
- * Handles referencing and derefencing character entities
- */
-class HTMLPurifier_EntityParser
-{
-
- /**
- * Reference to entity lookup table.
- * @type HTMLPurifier_EntityLookup
- */
- protected $_entity_lookup;
-
- /**
- * Callback regex string for parsing entities.
- * @type string
- */
- protected $_substituteEntitiesRegex =
- '/&(?:[#]x([a-fA-F0-9]+)|[#]0*(\d+)|([A-Za-z_:][A-Za-z0-9.\-_:]*));?/';
- // 1. hex 2. dec 3. string (XML style)
-
- /**
- * Decimal to parsed string conversion table for special entities.
- * @type array
- */
- protected $_special_dec2str =
- array(
- 34 => '"',
- 38 => '&',
- 39 => "'",
- 60 => '<',
- 62 => '>'
- );
-
- /**
- * Stripped entity names to decimal conversion table for special entities.
- * @type array
- */
- protected $_special_ent2dec =
- array(
- 'quot' => 34,
- 'amp' => 38,
- 'lt' => 60,
- 'gt' => 62
- );
-
- /**
- * Substitutes non-special entities with their parsed equivalents. Since
- * running this whenever you have parsed character is t3h 5uck, we run
- * it before everything else.
- *
- * @param string $string String to have non-special entities parsed.
- * @return string Parsed string.
- */
- public function substituteNonSpecialEntities($string)
- {
- // it will try to detect missing semicolons, but don't rely on it
- return preg_replace_callback(
- $this->_substituteEntitiesRegex,
- array($this, 'nonSpecialEntityCallback'),
- $string
- );
- }
-
- /**
- * Callback function for substituteNonSpecialEntities() that does the work.
- *
- * @param array $matches PCRE matches array, with 0 the entire match, and
- * either index 1, 2 or 3 set with a hex value, dec value,
- * or string (respectively).
- * @return string Replacement string.
- */
-
- protected function nonSpecialEntityCallback($matches)
- {
- // replaces all but big five
- $entity = $matches[0];
- $is_num = (@$matches[0][1] === '#');
- if ($is_num) {
- $is_hex = (@$entity[2] === 'x');
- $code = $is_hex ? hexdec($matches[1]) : (int) $matches[2];
- // abort for special characters
- if (isset($this->_special_dec2str[$code])) {
- return $entity;
- }
- return HTMLPurifier_Encoder::unichr($code);
- } else {
- if (isset($this->_special_ent2dec[$matches[3]])) {
- return $entity;
- }
- if (!$this->_entity_lookup) {
- $this->_entity_lookup = HTMLPurifier_EntityLookup::instance();
- }
- if (isset($this->_entity_lookup->table[$matches[3]])) {
- return $this->_entity_lookup->table[$matches[3]];
- } else {
- return $entity;
- }
- }
- }
-
- /**
- * Substitutes only special entities with their parsed equivalents.
- *
- * @notice We try to avoid calling this function because otherwise, it
- * would have to be called a lot (for every parsed section).
- *
- * @param string $string String to have non-special entities parsed.
- * @return string Parsed string.
- */
- public function substituteSpecialEntities($string)
- {
- return preg_replace_callback(
- $this->_substituteEntitiesRegex,
- array($this, 'specialEntityCallback'),
- $string
- );
- }
-
- /**
- * Callback function for substituteSpecialEntities() that does the work.
- *
- * This callback has same syntax as nonSpecialEntityCallback().
- *
- * @param array $matches PCRE-style matches array, with 0 the entire match, and
- * either index 1, 2 or 3 set with a hex value, dec value,
- * or string (respectively).
- * @return string Replacement string.
- */
- protected function specialEntityCallback($matches)
- {
- $entity = $matches[0];
- $is_num = (@$matches[0][1] === '#');
- if ($is_num) {
- $is_hex = (@$entity[2] === 'x');
- $int = $is_hex ? hexdec($matches[1]) : (int) $matches[2];
- return isset($this->_special_dec2str[$int]) ?
- $this->_special_dec2str[$int] :
- $entity;
- } else {
- return isset($this->_special_ent2dec[$matches[3]]) ?
- $this->_special_ent2dec[$matches[3]] :
- $entity;
- }
- }
-}
-
-// vim: et sw=4 sts=4