<?php
/**
*
* @package phpBB3
* @copyright (c) 2005 phpBB Group
* @license http://opensource.org/licenses/gpl-2.0.php GNU General Public License v2
*
*/
if (php_sapi_name() != 'cli')
{
die("This program must be run from the command line.\n");
}
//
// Security message:
//
// This script is potentially dangerous.
// Remove or comment the next line (die(".... ) to enable this script.
// Do NOT FORGET to either remove this script or disable it after you have used it.
//
die("Please read the first lines of this script for instructions on how to enable it");
set_time_limit(0);
define('IN_PHPBB', true);
$phpbb_root_path = '../';
$phpEx = substr(strrchr(__FILE__, '.'), 1);
echo "Checking for required files\n";
download('http://unicode.org/reports/tr39/data/confusables.txt');
download('http://unicode.org/Public/UNIDATA/CaseFolding.txt');
echo "\n";
/**
* Load the confusables table
*/
echo "Loading confusables\n";
$unidata = file_get_contents('confusables.txt');
/**
* Load the CaseFolding table
*/
echo "Loading CaseFolding\n";
$casefolds = file_get_contents('CaseFolding.txt');
function utf8_chr($cp)
{
if ($cp > 0xFFFF)
{
return chr(0xF0 | ($cp >> 18)) . chr(0x80 | (($cp >> 12) & 0x3F)) . chr(0x80 | (($cp >> 6) & 0x3F)) . chr(0x80 | ($cp & 0x3F));
}
else if ($cp > 0x7FF)
{
return chr(0xE0 | ($cp >> 12)) . chr(0x80 | (($cp >> 6) & 0x3F)) . chr(0x80 | ($cp & 0x3F));
}
else if ($cp > 0x7F)
{
return chr(0xC0 | ($cp >> 6)) . chr(0x80 | ($cp & 0x3F));
}
else
{
return chr($cp);
}
}
preg_match_all('/^([0-9A-F]+) ;\s((?:[0-9A-F]+ )*);.*?$/im', $unidata, $array, PREG_SET_ORDER);
preg_match_all('/^([0-9A-F]+); ([CFS]); ([0-9A-F]+(?: [0-9A-F]+)*);/im', $casefolds, $casefold_array);
// some that we defined ourselves
$uniarray = array(
"\xC2\xA1" => "\x69", // EXCLAMATION MARK, INVERTED => LATIN SMALL LETTER I
"\xC7\x83" => "\x21", // LATIN LETTER RETROFLEX CLICK => EXCLAMATION MARK
"\xCE\xB1" => "\x61", // GREEK SMALL LETTER ALPHA => LATIN SMALL LETTER A
"\xE1\x9A\x80" => "\x20", // OGHAM SPACE MARK
"\xC2\xAD" => '', // HYPHEN, SOFT => empty string
"\xDB\x9D" => '', // ARABIC END OF AYAH
"\xDC\x8F" => '', // SYRIAC ABBREVIATION MARK
"\xE1\xA0\x86" => '', // MONGOLIAN TODO SOFT HYPHEN
"\xE1\xA0\x8E" => '', // MONGOLIAN VOWEL SEPARATOR
"\xE2\x80\x8B" => '', // ZERO WIDTH SPACE
"\xE2\x80\x8C" => '', // ZERO WIDTH NON-JOINER
"\xE2\x80\x8D" => '', // ZERO WIDTH JOINER
"\xE2\x80\xA8" => '', // LINE SEPARATOR
"\xE2\x80\xA9" => '', // PARAGRAPH SEPARATOR
"\xE2\x81\xA0" => '', // WORD JOINER
"\xE2\x81\xA1" => '', // FUNCTION APPLICATION
"\xE2\x81\xA2" => '', // INVISIBLE TIMES
"\xE2\x81\xA3" => '', // INVISIBLE SEPARATOR
"\xE2\x81\xAA" => '', // [CONTROL CHARACTERS]
"\xE2\x81\xAB" => '', // [CONTROL CHARACTERS]
"\xE2\x81\xAC" => '', // [CONTROL CHARACTERS]
"\xE2\x81\xAD" => '', // [CONTROL CHARACTERS]
"\xE2\x81\xAE" => '', // [CONTROL CHARACTERS]
"\xE2\x81\xAF" => '', // [CONTROL CHARACTERS]
"\xEF\xBB\xBF" => '', // ZERO WIDTH NO-BREAK SPACE
"\xEF\xBF\xB9" => '', // [CONTROL CHARACTERS]
"\xEF\xBF\xBA" => '', // [CONTROL CHARACTERS]
"\xEF\xBF\xBB" => '', // [CONTROL CHARACTERS]
"\xEF\xBF\xBC" => '', // [CONTROL CHARACTERS]
"\xF0\x9D\x85\xB3" => '', // [MUSICAL CONTROL CHARACTERS]
"\xF0\x9D\x85\xB4" => '', // [MUSICAL CONTROL CHARACTERS]
"\xF0\x9D\x85\xB5" => '', // [MUSICAL CONTROL CHARACTERS]
"\xF0\x9D\x85\xB6" => '', // [MUSICAL CONTROL CHARACTERS]
"\xF0\x9D\x85\xB7" => '', // [MUSICAL CONTROL CHARACTERS]
"\xF0\x9D\x85\xB8" => '', // [MUSICAL CONTROL CHARACTERS]
"\xF0\x9D\x85\xB9" => '', // [MUSICAL CONTROL CHARACTERS]
"\xF0\x9D\x85\xBA" => '', // [MUSICAL CONTROL CHARACTERS]
);
$copy = $uniarray;
/**
* @todo we need to check that the $uniarray does not reverse any of the mappings defined in the unicode definition
*/
foreach ($array as $value)
{
$temp_hold = implode(array_map('utf8_chr', array_map('hexdec', explode(' ', trim($value[2])))));
if (isset($copy[utf8_chr(hexdec((string)$value[1]))]))
{
$num = '';
$string = utf8_chr(hexdec((string)$value[1]));
for ($i = 0; $i < strlen($string); $i++)
{
$num .= '\x' . str_pad(base_convert(ord($string[$i]), 10, 16), 2, '0', STR_PAD_LEFT);
}
echo $num . "\n";
if ($uniarray[$string] != $temp_hold)
{
echo " --> $string\n";
echo " --> " . $temp_hold . "\n";
}
}
// do some tests for things that transform into something with the number one
if (strpos($temp_hold, utf8_chr(0x0031)) !== false)
{
// any kind of letter L?
if (strpos($value[0], 'LETTER L') !== false || strpos($value[0], 'IOTA') !== false || strpos($value[0], 'SMALL L ') !== false || preg_match('/SMALL LIGATURE [^L]*L /', $value[0]))
{
// replace all of the mappings that transform some sort of letter l to number one instead to some sort of letter l to latin small letter l
$temp_hold = str_replace(utf8_chr(0x0031), utf8_chr(0x006C), $temp_hold);
}
}
// uppercased chars that were folded do not exist in this universe,
// no amount of normalization could ever "trick" this into not working
if (in_array($value[1], $casefold_array[1]))
{
continue;
}
$uniarray[utf8_chr(hexdec((string)$value[1]))] = $temp_hold;
}
echo "Writing to confusables.$phpEx\n";
$fp = fopen($phpbb_root_path . 'includes/utf/data/confusables.' . $phpEx, 'wb');
fwrite($fp, '<?php return ' . my_var_export($uniarray) . ';');
fclose($fp);
/**
* Return a parsable string representation of a variable
*
* This is function is limited to array/strings/integers
*
* @param mixed $var Variable
* @return string PHP code representing the variable
*/
function my_var_export($var)
{
if (is_array($var))
{
$lines = array();
foreach ($var as $k => $v)
{
$lines[] = my_var_export($k) . '=>' . my_var_export($v);
}
return 'array(' . implode(',', $lines) . ')';
}
else if (is_string($var))
{
return "'" . str_replace(array('\\', "'"), array('\\\\', "\\'"), $var) . "'";
}
else
{
return $var;
}
}
/**
* Download a file to the develop/ dir
*
* @param string $url URL of the file to download
* @return null
*/
function download($url)
{
global $phpbb_root_path;
if (file_exists($phpbb_root_path . 'develop/' . basename($url)))
{
return;
}
echo 'Downloading from ', $url, ' ';
if (!$fpr = fopen($url, 'rb'))
{
die("Can't download from $url\nPlease download it yourself and put it in the develop/ dir, kthxbai");
}
if (!$fpw = fopen($phpbb_root_path . 'develop/' . basename($url), 'wb'))
{
die("Can't open develop/" . basename($url) . " for output... please check your permissions or something");
}
$i = 0;
$chunk = 32768;
$done = '';
while (!feof($fpr))
{
$i += fwrite($fpw, fread($fpr, $chunk));
echo str_repeat("\x08", strlen($done));
$done = ($i >> 10) . ' KiB';
echo $done;
}
fclose($fpr);
fclose($fpw);
echo "\n";
}