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be7f6d4834
Prior to this change, all the line endings in the imported HTMLPurifier library were using CRLF (\r\n aka Windows style), but the HTMLPurifier source and also the downloadable artefacts use LF (\n aka Linux style) as line endings. This has been the case since 510d190382003985eafd6f4407190d43509016a5 when with the commit "MDL-38672 import HTML Purifier 4.5.0" all line endings were changed from LF to CRLF. There was no comment in the commit on why this change was done. As the original source uses LF, this commit partly reverts 510d190382003985eafd6f4407190d43509016a5 and goes back to LF as line endings. Signed-off-by: Daniel Ziegenberg <daniel@ziegenberg.at>
96 lines
2.6 KiB
PHP
96 lines
2.6 KiB
PHP
<?php
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/**
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* Registry object that contains information about the current context.
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* @warning Is a bit buggy when variables are set to null: it thinks
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* they don't exist! So use false instead, please.
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* @note Since the variables Context deals with may not be objects,
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* references are very important here! Do not remove!
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*/
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class HTMLPurifier_Context
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{
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/**
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* Private array that stores the references.
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* @type array
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*/
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private $_storage = array();
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/**
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* Registers a variable into the context.
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* @param string $name String name
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* @param mixed $ref Reference to variable to be registered
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*/
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public function register($name, &$ref)
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{
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if (array_key_exists($name, $this->_storage)) {
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trigger_error(
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"Name $name produces collision, cannot re-register",
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E_USER_ERROR
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);
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return;
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}
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$this->_storage[$name] =& $ref;
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}
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/**
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* Retrieves a variable reference from the context.
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* @param string $name String name
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* @param bool $ignore_error Boolean whether or not to ignore error
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* @return mixed
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*/
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public function &get($name, $ignore_error = false)
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{
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if (!array_key_exists($name, $this->_storage)) {
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if (!$ignore_error) {
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trigger_error(
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"Attempted to retrieve non-existent variable $name",
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E_USER_ERROR
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);
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}
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$var = null; // so we can return by reference
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return $var;
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}
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return $this->_storage[$name];
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}
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/**
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* Destroys a variable in the context.
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* @param string $name String name
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*/
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public function destroy($name)
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{
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if (!array_key_exists($name, $this->_storage)) {
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trigger_error(
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"Attempted to destroy non-existent variable $name",
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E_USER_ERROR
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);
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return;
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}
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unset($this->_storage[$name]);
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}
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/**
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* Checks whether or not the variable exists.
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* @param string $name String name
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* @return bool
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*/
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public function exists($name)
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{
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return array_key_exists($name, $this->_storage);
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}
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/**
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* Loads a series of variables from an associative array
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* @param array $context_array Assoc array of variables to load
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*/
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public function loadArray($context_array)
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{
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foreach ($context_array as $key => $discard) {
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$this->register($key, $context_array[$key]);
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}
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}
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}
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// vim: et sw=4 sts=4
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