: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.

1 files changed, 204 insertions, 0 deletions

diff --git a/vendor/ezyang/htmlpurifier/library/HTMLPurifier/Language.php b/vendor/ezyang/htmlpurifier/library/HTMLPurifier/Language.php
new file mode 100644
index 000000000..65277dd43
--- /dev/null
+++ b/vendor/ezyang/htmlpurifier/library/HTMLPurifier/Language.php
@@ -0,0 +1,204 @@
+<?php
+
+/**
+ * Represents a language and defines localizable string formatting and
+ * other functions, as well as the localized messages for HTML Purifier.
+ */
+class HTMLPurifier_Language
+{
+
+    /**
+     * ISO 639 language code of language. Prefers shortest possible version.
+     * @type string
+     */
+    public $code = 'en';
+
+    /**
+     * Fallback language code.
+     * @type bool|string
+     */
+    public $fallback = false;
+
+    /**
+     * Array of localizable messages.
+     * @type array
+     */
+    public $messages = array();
+
+    /**
+     * Array of localizable error codes.
+     * @type array
+     */
+    public $errorNames = array();
+
+    /**
+     * True if no message file was found for this language, so English
+     * is being used instead. Check this if you'd like to notify the
+     * user that they've used a non-supported language.
+     * @type bool
+     */
+    public $error = false;
+
+    /**
+     * Has the language object been loaded yet?
+     * @type bool
+     * @todo Make it private, fix usage in HTMLPurifier_LanguageTest
+     */
+    public $_loaded = false;
+
+    /**
+     * @type HTMLPurifier_Config
+     */
+    protected $config;
+
+    /**
+     * @type HTMLPurifier_Context
+     */
+    protected $context;
+
+    /**
+     * @param HTMLPurifier_Config $config
+     * @param HTMLPurifier_Context $context
+     */
+    public function __construct($config, $context)
+    {
+        $this->config  = $config;
+        $this->context = $context;
+    }
+
+    /**
+     * Loads language object with necessary info from factory cache
+     * @note This is a lazy loader
+     */
+    public function load()
+    {
+        if ($this->_loaded) {
+            return;
+        }
+        $factory = HTMLPurifier_LanguageFactory::instance();
+        $factory->loadLanguage($this->code);
+        foreach ($factory->keys as $key) {
+            $this->$key = $factory->cache[$this->code][$key];
+        }
+        $this->_loaded = true;
+    }
+
+    /**
+     * Retrieves a localised message.
+     * @param string $key string identifier of message
+     * @return string localised message
+     */
+    public function getMessage($key)
+    {
+        if (!$this->_loaded) {
+            $this->load();
+        }
+        if (!isset($this->messages[$key])) {
+            return "[$key]";
+        }
+        return $this->messages[$key];
+    }
+
+    /**
+     * Retrieves a localised error name.
+     * @param int $int error number, corresponding to PHP's error reporting
+     * @return string localised message
+     */
+    public function getErrorName($int)
+    {
+        if (!$this->_loaded) {
+            $this->load();
+        }
+        if (!isset($this->errorNames[$int])) {
+            return "[Error: $int]";
+        }
+        return $this->errorNames[$int];
+    }
+
+    /**
+     * Converts an array list into a string readable representation
+     * @param array $array
+     * @return string
+     */
+    public function listify($array)
+    {
+        $sep      = $this->getMessage('Item separator');
+        $sep_last = $this->getMessage('Item separator last');
+        $ret = '';
+        for ($i = 0, $c = count($array); $i < $c; $i++) {
+            if ($i == 0) {
+            } elseif ($i + 1 < $c) {
+                $ret .= $sep;
+            } else {
+                $ret .= $sep_last;
+            }
+            $ret .= $array[$i];
+        }
+        return $ret;
+    }
+
+    /**
+     * Formats a localised message with passed parameters
+     * @param string $key string identifier of message
+     * @param array $args Parameters to substitute in
+     * @return string localised message
+     * @todo Implement conditionals? Right now, some messages make
+     *     reference to line numbers, but those aren't always available
+     */
+    public function formatMessage($key, $args = array())
+    {
+        if (!$this->_loaded) {
+            $this->load();
+        }
+        if (!isset($this->messages[$key])) {
+            return "[$key]";
+        }
+        $raw = $this->messages[$key];
+        $subst = array();
+        $generator = false;
+        foreach ($args as $i => $value) {
+            if (is_object($value)) {
+                if ($value instanceof HTMLPurifier_Token) {
+                    // factor this out some time
+                    if (!$generator) {
+                        $generator = $this->context->get('Generator');
+                    }
+                    if (isset($value->name)) {
+                        $subst['$'.$i.'.Name'] = $value->name;
+                    }
+                    if (isset($value->data)) {
+                        $subst['$'.$i.'.Data'] = $value->data;
+                    }
+                    $subst['$'.$i.'.Compact'] =
+                    $subst['$'.$i.'.Serialized'] = $generator->generateFromToken($value);
+                    // a more complex algorithm for compact representation
+                    // could be introduced for all types of tokens. This
+                    // may need to be factored out into a dedicated class
+                    if (!empty($value->attr)) {
+                        $stripped_token = clone $value;
+                        $stripped_token->attr = array();
+                        $subst['$'.$i.'.Compact'] = $generator->generateFromToken($stripped_token);
+                    }
+                    $subst['$'.$i.'.Line'] = $value->line ? $value->line : 'unknown';
+                }
+                continue;
+            } elseif (is_array($value)) {
+                $keys = array_keys($value);
+                if (array_keys($keys) === $keys) {
+                    // list
+                    $subst['$'.$i] = $this->listify($value);
+                } else {
+                    // associative array
+                    // no $i implementation yet, sorry
+                    $subst['$'.$i.'.Keys'] = $this->listify($keys);
+                    $subst['$'.$i.'.Values'] = $this->listify(array_values($value));
+                }
+                continue;
+            }
+            $subst['$' . $i] = $value;
+        }
+        return strtr($raw, $subst);
+    }
+}
+
+// vim: et sw=4 sts=4