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Seperated out sql parsing functions into a new file.
git-svn-id: file:///svn/phpbb/trunk@1069 89ea8834-ac86-4346-8a33-228a782c2dd0
This commit is contained in:
the_systech
parent
bc14000a95
commit
1871f5e2c0
2 changed files with 122 additions and 86 deletions
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@ -40,7 +40,6 @@ if($setmodules == 1)
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$phpbb_root_path = "./../";
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$phpbb_root_path = "./../";
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include($phpbb_root_path . 'extension.inc');
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include($phpbb_root_path . 'extension.inc');
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include($phpbb_root_path . 'common.'.$phpEx);
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include($phpbb_root_path . 'common.'.$phpEx);
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//
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//
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// Start session management
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// Start session management
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//
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//
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@ -73,9 +72,16 @@ define("VERBOSE", 0);
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//
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//
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@set_time_limit(1200);
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@set_time_limit(1200);
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//
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// Pull in the functions for splitting an sql file into individual statements
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//
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include($phpbb_root_path . 'includes/sql_parse'.$phpEx);
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//
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//
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// The following functions are adapted from phpMyAdmin and upgrade_20.php
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// The following functions are adapted from phpMyAdmin and upgrade_20.php
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//
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//
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//
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//
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// This function is used for grabbing the sequences for postgres...
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// This function is used for grabbing the sequences for postgres...
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//
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//
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@ -653,91 +659,6 @@ function output_table_content($content)
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return;
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return;
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}
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}
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//
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// remove_remarks will strip the sql comment lines out of an uploaded sql file
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//
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function remove_remarks($sql)
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{
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$lines = explode("\n", $sql);
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// try to keep mem. use down
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$sql = "";
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$linecount = count($lines);
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$output = "";
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for ($i = 0; $i < $linecount; $i++)
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{
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if (($i != ($linecount - 1)) || (strlen($lines[$i]) > 0))
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{
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if ($lines[$i][0] != "#")
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{
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$output .= $lines[$i] . "\n";
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}
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else
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{
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$output .= "\n";
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}
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// Trading a bit of speed for lower mem. use here.
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$lines[$i] = "";
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}
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}
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return $output;
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}
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//
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// split_sql_file will split an uploaded sql file into single sql statements.
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// Note: expects trim() to have already been run on $sql.
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//
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function split_sql_file($sql, $delimiter)
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{
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// Split up our string into "possible" SQL statements.
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$tokens = explode($delimiter, $sql);
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// try to save memory.
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$sql = "";
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$output = array();
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// we don't actually care about the matches preg gives us.
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$matches = array();
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// this is faster than calling count($oktens) every time thru the loop.
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$token_count = count($tokens);
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for ($i = 0; $i < $token_count; $i++)
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{
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// Don't wanna add an empty string as the last thing in the array.
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if (($i != ($token_count - 1)) || (strlen($tokens[$i] > 0)))
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{
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// This is the total number of single quotes in the token.
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$total_quotes = preg_match_all("/'/", $tokens[$i], $matches);
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// Counts single quotes that are preceded by an odd number of backslashes,
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// which means they're escaped quotes.
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$escaped_quotes = preg_match_all("/(?<!\\\\)(\\\\\\\\)*\\\\'/", $tokens[$i], $matches);
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$unescaped_quotes = $total_quotes - $escaped_quotes;
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// If the number of unescaped quotes is even, then the delimiter did NOT occur inside a string literal.
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if (($unescaped_quotes % 2) == 0)
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{
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// It's a complete sql statement.
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$output[] = $tokens[$i];
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// save memory.
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$tokens[$i] = "";
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}
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else
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{
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// it's not complete, so prepend it onto the next token and continue the loop as usual.
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$tokens[$i + 1] = $tokens[$i] . ";" . $tokens[$i + 1];
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// save memory.
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$tokens[$i] = "";
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}
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}
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}
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return $output;
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}
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//
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//
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// End Functions
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// End Functions
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// -------------
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// -------------
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115
phpBB/includes/sql_parse.php
Normal file
115
phpBB/includes/sql_parse.php
Normal file
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@ -0,0 +1,115 @@
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<?php
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/***************************************************************************
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* sql_parse.php
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* -------------------
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* begin : Thu May 31, 2001
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* copyright : (C) 2001 The phpBB Group
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* email : support@phpbb.com
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*
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* $Id$
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*
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****************************************************************************/
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/***************************************************************************
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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***************************************************************************/
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/***************************************************************************
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*
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* These functions are mainly for use in the db_utilities under the admin
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* however in order to make these functions available elsewhere, specifically
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* in the installation phase of phpBB I have seperated out a couple of
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* functions into this file. JLH
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*
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\***************************************************************************/
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//
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// remove_remarks will strip the sql comment lines out of an uploaded sql file
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//
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function remove_remarks($sql)
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{
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$lines = explode("\n", $sql);
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// try to keep mem. use down
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$sql = "";
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$linecount = count($lines);
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$output = "";
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for ($i = 0; $i < $linecount; $i++)
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{
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if (($i != ($linecount - 1)) || (strlen($lines[$i]) > 0))
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{
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if ($lines[$i][0] != "#")
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{
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$output .= $lines[$i] . "\n";
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}
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else
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{
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$output .= "\n";
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}
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// Trading a bit of speed for lower mem. use here.
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$lines[$i] = "";
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}
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}
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return $output;
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}
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//
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// split_sql_file will split an uploaded sql file into single sql statements.
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// Note: expects trim() to have already been run on $sql.
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//
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function split_sql_file($sql, $delimiter)
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{
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// Split up our string into "possible" SQL statements.
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$tokens = explode($delimiter, $sql);
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// try to save memory.
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$sql = "";
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$output = array();
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// we don't actually care about the matches preg gives us.
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$matches = array();
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// this is faster than calling count($oktens) every time thru the loop.
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$token_count = count($tokens);
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for ($i = 0; $i < $token_count; $i++)
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{
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// Don't wanna add an empty string as the last thing in the array.
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if (($i != ($token_count - 1)) || (strlen($tokens[$i] > 0)))
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{
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// This is the total number of single quotes in the token.
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$total_quotes = preg_match_all("/'/", $tokens[$i], $matches);
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// Counts single quotes that are preceded by an odd number of backslashes,
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// which means they're escaped quotes.
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$escaped_quotes = preg_match_all("/(?<!\\\\)(\\\\\\\\)*\\\\'/", $tokens[$i], $matches);
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$unescaped_quotes = $total_quotes - $escaped_quotes;
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// If the number of unescaped quotes is even, then the delimiter did NOT occur inside a string literal.
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if (($unescaped_quotes % 2) == 0)
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{
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// It's a complete sql statement.
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$output[] = $tokens[$i];
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// save memory.
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$tokens[$i] = "";
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}
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else
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{
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// it's not complete, so prepend it onto the next token and continue the loop as usual.
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$tokens[$i + 1] = $tokens[$i] . ";" . $tokens[$i + 1];
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// save memory.
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$tokens[$i] = "";
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}
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}
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}
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return $output;
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}
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?>
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