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<?php
# Copyright (C) 2004 Brion Vibber <brion@pobox.com>
# http://www.mediawiki.org/
#
# This program 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.
#
# This program 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 this program; if not, write to the Free Software Foundation, Inc.,
# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
# http://www.gnu.org/copyleft/gpl.html
/**
* Test feeds random 16-byte strings to both the pure PHP and ICU-based
* UtfNormal::cleanUp() code paths, and checks to see if there's a
* difference. Will run forever until it finds one or you kill it.
*
* @ingroup UtfNormal
* @access private
*/
if( php_sapi_name() != 'cli' ) {
die( "Run me from the command line please.\n" );
}
/** */
require_once( 'UtfNormal.php' );
require_once( '../DifferenceEngine.php' );
dl('php_utfnormal.so' );
# mt_srand( 99999 );
function randomString( $length, $nullOk, $ascii = false ) {
$out = '';
for( $i = 0; $i < $length; $i++ )
$out .= chr( mt_rand( $nullOk ? 0 : 1, $ascii ? 127 : 255 ) );
return $out;
}
/* Duplicate of the cleanUp() path for ICU usage */
function donorm( $str ) {
# We exclude a few chars that ICU would not.
$str = preg_replace( '/[\x00-\x08\x0b\x0c\x0e-\x1f]/', UTF8_REPLACEMENT, $str );
$str = str_replace( UTF8_FFFE, UTF8_REPLACEMENT, $str );
$str = str_replace( UTF8_FFFF, UTF8_REPLACEMENT, $str );
# UnicodeString constructor fails if the string ends with a head byte.
# Add a junk char at the end, we'll strip it off
return rtrim( utf8_normalize( $str . "\x01", UNORM_NFC ), "\x01" );
}
function wfMsg($x) {
return $x;
}
function showDiffs( $a, $b ) {
$ota = explode( "\n", str_replace( "\r\n", "\n", $a ) );
$nta = explode( "\n", str_replace( "\r\n", "\n", $b ) );
$diffs = new Diff( $ota, $nta );
$formatter = new TableDiffFormatter();
$funky = $formatter->format( $diffs );
$matches = array();
preg_match_all( '/<(?:ins|del) class="diffchange">(.*?)<\/(?:ins|del)>/', $funky, $matches );
foreach( $matches[1] as $bit ) {
$hex = bin2hex( $bit );
echo "\t$hex\n";
}
}
$size = 16;
$n = 0;
while( true ) {
$n++;
echo "$n\n";
$str = randomString( $size, true);
$clean = UtfNormal::cleanUp( $str );
$norm = donorm( $str );
echo strlen( $clean ) . ", " . strlen( $norm );
if( $clean == $norm ) {
echo " (match)\n";
} else {
echo " (FAIL)\n";
echo "\traw: " . bin2hex( $str ) . "\n" .
"\tphp: " . bin2hex( $clean ) . "\n" .
"\ticu: " . bin2hex( $norm ) . "\n";
echo "\n\tdiffs:\n";
showDiffs( $clean, $norm );
die();
}
$str = '';
$clean = '';
$norm = '';
}
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