From f718e2b0db0fe3477212a8dd6c3ec067f4432862 Mon Sep 17 00:00:00 2001
From: Klaus Weidenbach <Klaus.Weidenbach@gmx.net>
Date: Sat, 18 Mar 2017 17:50:05 +0100
Subject: :arrow_up: Update HTML Purifier library.

Updated HTML Purifier from 4.6.0 to 4.9.2 with better PHP7 compatibility.
Used composer to manage this library.
---
 library/HTMLPurifier/EntityParser.php | 153 ----------------------------------
 1 file changed, 153 deletions(-)
 delete mode 100644 library/HTMLPurifier/EntityParser.php

(limited to 'library/HTMLPurifier/EntityParser.php')

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
-- 
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