94 lines
2.8 KiB
PHP
94 lines
2.8 KiB
PHP
<?php
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/**
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* PHP_ParserGenerator, a php 5 parser generator.
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*
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* This is a direct port of the Lemon parser generator, found at
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* {@link http://www.hwaci.com/sw/lemon/}
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*
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* PHP version 5
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*
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* LICENSE: This source file is subject to version 3.01 of the PHP license
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* that is available through the world-wide-web at the following URI:
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* http://www.php.net/license/3_01.txt. If you did not receive a copy of
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* the PHP License and are unable to obtain it through the web, please
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* send a note to license@php.net so we can mail you a copy immediately.
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*
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* @category php
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* @package PHP_ParserGenerator
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* @author Gregory Beaver <cellog@php.net>
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* @copyright 2006 Gregory Beaver
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* @license http://www.php.net/license/3_01.txt PHP License 3.01
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* @version CVS: $Id$
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* @since File available since Release 0.1.0
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*/
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/**
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* A followset propagation link indicates that the contents of one
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* configuration followset should be propagated to another whenever
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* the first changes.
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*
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* @package PHP_ParserGenerator
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* @author Gregory Beaver <cellog@php.net>
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* @copyright 2006 Gregory Beaver
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* @license http://www.php.net/license/3_01.txt PHP License 3.01
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* @version 0.1.0
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* @since Class available since Release 0.1.0
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*/
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class PHP_ParserGenerator_PropagationLink {
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/**
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* The configuration that defines this propagation link
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* @var PHP_ParserGenerator_Config
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*/
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public $cfp;
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/**
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* The next propagation link
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* @var PHP_ParserGenerator_PropagationLink|0
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*/
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public $next = 0;
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/**
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* Add a propagation link to the current list
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*
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* This prepends the configuration passed in to the first parameter
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* which is either 0 or a PHP_ParserGenerator_PropagationLink defining
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* an existing list.
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* @param PHP_ParserGenerator_PropagationLink|null
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* @param PHP_ParserGenerator_Config
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*/
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static function Plink_add(&$plpp, PHP_ParserGenerator_Config $cfp)
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{
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$new = new PHP_ParserGenerator_PropagationLink;
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$new->next = $plpp;
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$plpp = $new;
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$new->cfp = $cfp;
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}
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/**
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* Transfer every propagation link on the list "from" to the list "to"
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*/
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static function Plink_copy(PHP_ParserGenerator_PropagationLink &$to,
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PHP_ParserGenerator_PropagationLink $from)
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{
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while ($from) {
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$nextpl = $from->next;
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$from->next = $to;
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$to = $from;
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$from = $nextpl;
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}
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}
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/**
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* Delete every propagation link on the list
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* @param PHP_ParserGenerator_PropagationLink|0
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*/
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static function Plink_delete($plp)
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{
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while ($plp) {
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$nextpl = $plp->next;
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$plp->next = 0;
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$plp = $nextpl;
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}
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}
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}
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