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<?php
/**
* GeSHi - Generic Syntax Highlighter
* ----------------------------------
*
* For information on how to use GeSHi, please consult the documentation
* found in the docs/ directory, or online at http://geshi.org/docs/
*
* This file is part of GeSHi.
*
* GeSHi is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* GeSHi is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with GeSHi; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
* You can view a copy of the GNU GPL in the COPYING file that comes
* with GeSHi, in the docs/ directory.
*
* @package scripts
* @author Nigel McNie <nigel@geshi.org>
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL
* @copyright (C) 2005 Nigel McNie
* @version 1.1.0
*
*/
/**
* Class that is overridden to provide an implementation of getting keywords
* for a particular language
*
* @author Nigel McNie <nigel@geshi.org>
* @since 0.1.0
* @abstract
*/
class KeywordGetterStrategy
{
/**#@+
* @access private
*/
/**
* The language that this getter is getting keywords for
* @var string
*/
var $_language;
/**
* The keyword group within the language that this getter is
* getting keywords for
* @var string
*/
var $_keywordGroup;
/**
* The keyword groups that are valid (supported) by this strategy
* @var array
*/
var $_validKeywordGroups;
/**
* used?
*/
var $_keywords = array();
/**#@-*/
/**
* @abstract
*/
function getKeywords ($keyword_group)
{
return new KeywordGetterError(LANG_NOT_SUPPORTED, $this->_language);
}
/**
* @return array
*/
function getValidKeywordGroups ()
{
return $this->_validKeywordGroups;
}
/**
* Checks whether the keyword group asked for is valid
*/
function keywordGroupIsValid ($keyword_group) {
if (in_array($keyword_group, $this->_validKeywordGroups)) {
return true;
}
return new KeywordGetterError(INVALID_KEYWORD_GROUP, $this->_language,
array('{KEYWORD_GROUP}' => $keyword_group));
}
}
?>
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