117 lines
4.1 KiB
PHP
117 lines
4.1 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:
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*
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* Copyright (c) 2006, Gregory Beaver <cellog@php.net>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the distribution.
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* * Neither the name of the PHP_ParserGenerator nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
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* IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
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* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
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* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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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.opensource.org/licenses/bsd-license.php New BSD License
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* @version CVS: $Id: PropagationLink.php,v 1.1 2006/07/18 00:53:10 cellog Exp $
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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.opensource.org/licenses/bsd-license.php New BSD License
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* @version 0.1.5
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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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/**
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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 $next = 0;
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/**
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* Add a propagation link to the current list
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*
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* This prepends the configuration passed in to the first parameter
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* which is either 0 or a PHP_ParserGenerator_PropagationLink defining
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* an existing list.
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* @param PHP_ParserGenerator_PropagationLink|null
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* @param PHP_ParserGenerator_Config
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*/
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public static function Plink_add(&$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 = $cfp;
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}
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/**
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* Transfer every propagation link on the list "from" to the list "to"
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*/
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public static function Plink_copy(PHP_ParserGenerator_PropagationLink &$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 = $nextpl;
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}
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}
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/**
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* Delete every propagation link on the list
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* @param PHP_ParserGenerator_PropagationLink|0
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*/
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public static function Plink_delete($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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