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MySQLDumper/library/Msd/Sql/Parser/Statement/Comment.php

56 Zeilen
1.5 KiB
PHP

<?php
/**
* This file is part of MySQLDumper released under the GNU/GPL 2 license
* http://www.mysqldumper.net
*
* @package MySQLDumper
* @subpackage SQL-Parser
* @version SVN: $Rev$
* @author $Author$
*/
/**
* Class to parse MySQL comments.
* This enables you to analyze and modify MySQL queries, which the user has entered.
*
* @package MySQLDumper
* @subpackage SQL-Parser
*/
class Msd_Sql_Parser_Statement_Comment implements Msd_Sql_Parser_Interface
{
/**
* Parse the statement.
*
* @param Msd_Sql_Object $statement MySQL comment.
*
* @return void
*/
public function parse(Msd_Sql_Object $sql)
{
$sql->setState('Comment');
$firstChars = $sql->getData(3);
$returnStatement = false;
if (substr($firstChars, 0, 2) == '--' || substr($firstChars, 0, 1) == '#') {
// one line comment -> match new line
$match = "\n";
} else {
if ($firstChars == '/*!') {
// conditionial statement
$match = '*/;';
$returnStatement = true;
} else {
// multi line comment
$match = '*/';
}
}
$endOfStatement = $sql->getPosition($match);
$statement = $sql->getData($endOfStatement);
$sql->setPointer($endOfStatement);
if ($returnStatement === true) {
return $statement;
} else {
return false;
}
}
}