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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
/**
* This script generates UniNormalData.inc from the Unicode Character Database
* and supplementary files.
*
* @package UtfNormal
* @access private
*/
/** */
if( php_sapi_name() != 'cli' ) {
die( "Run me from the command line please.\n" );
}
require_once 'UtfNormalUtil.php';
$in = fopen("DerivedNormalizationProps.txt", "rt" );
if( !$in ) {
print "Can't open DerivedNormalizationProps.txt for reading.\n";
print "If necessary, fetch this file from the internet:\n";
print "http://www.unicode.org/Public/UNIDATA/CompositionExclusions.txt\n";
exit(-1);
}
print "Initializing normalization quick check tables...\n";
$checkNFC = array();
while( false !== ($line = fgets( $in ) ) ) {
if( preg_match( '/^([0-9A-F]+)(?:..([0-9A-F]+))?\s*;\s*(NFC_QC)\s*;\s*([MN])/', $line, $matches ) ) {
list( $junk, $first, $last, $prop, $value ) = $matches;
#print "$first $last $prop $value\n";
if( !$last ) $last = $first;
for( $i = hexdec( $first ); $i <= hexdec( $last ); $i++) {
$char = codepointToUtf8( $i );
$checkNFC[$char] = $value;
}
}
}
fclose( $in );
$in = fopen("CompositionExclusions.txt", "rt" );
if( !$in ) {
print "Can't open CompositionExclusions.txt for reading.\n";
print "If necessary, fetch this file from the internet:\n";
print "http://www.unicode.org/Public/UNIDATA/CompositionExclusions.txt\n";
exit(-1);
}
$exclude = array();
while( false !== ($line = fgets( $in ) ) ) {
if( preg_match( '/^([0-9A-F]+)/i', $line, $matches ) ) {
$codepoint = $matches[1];
$source = codepointToUtf8( hexdec( $codepoint ) );
$exclude[$source] = true;
}
}
fclose($in);
$in = fopen("UnicodeData.txt", "rt" );
if( !$in ) {
print "Can't open UnicodeData.txt for reading.\n";
print "If necessary, fetch this file from the internet:\n";
print "http://www.unicode.org/Public/UNIDATA/UnicodeData.txt\n";
exit(-1);
}
$compatibilityDecomp = array();
$canonicalDecomp = array();
$canonicalComp = array();
$combiningClass = array();
$total = 0;
$compat = 0;
$canon = 0;
print "Reading character definitions...\n";
while( false !== ($line = fgets( $in ) ) ) {
$columns = split(';', $line);
$codepoint = $columns[0];
$name = $columns[1];
$canonicalCombiningClass = $columns[3];
$decompositionMapping = $columns[5];
$source = codepointToUtf8( hexdec( $codepoint ) );
if( $canonicalCombiningClass != 0 ) {
$combiningClass[$source] = intval( $canonicalCombiningClass );
}
if( $decompositionMapping === '' ) continue;
if( preg_match( '/^<(.+)> (.*)$/', $decompositionMapping, $matches ) ) {
# Compatibility decomposition
$canonical = false;
$decompositionMapping = $matches[2];
$compat++;
} else {
$canonical = true;
$canon++;
}
$total++;
$dest = hexSequenceToUtf8( $decompositionMapping );
$compatibilityDecomp[$source] = $dest;
if( $canonical ) {
$canonicalDecomp[$source] = $dest;
if( empty( $exclude[$source] ) ) {
$canonicalComp[$dest] = $source;
}
}
#print "$codepoint | $canonicalCombiningClasses | $decompositionMapping\n";
}
fclose( $in );
print "Recursively expanding canonical mappings...\n";
$changed = 42;
$pass = 1;
while( $changed > 0 ) {
print "pass $pass\n";
$changed = 0;
foreach( $canonicalDecomp as $source => $dest ) {
$newDest = preg_replace_callback(
'/([\xc0-\xff][\x80-\xbf]+)/',
'callbackCanonical',
$dest);
if( $newDest === $dest ) continue;
$changed++;
$canonicalDecomp[$source] = $newDest;
}
$pass++;
}
print "Recursively expanding compatibility mappings...\n";
$changed = 42;
$pass = 1;
while( $changed > 0 ) {
print "pass $pass\n";
$changed = 0;
foreach( $compatibilityDecomp as $source => $dest ) {
$newDest = preg_replace_callback(
'/([\xc0-\xff][\x80-\xbf]+)/',
'callbackCompat',
$dest);
if( $newDest === $dest ) continue;
$changed++;
$compatibilityDecomp[$source] = $newDest;
}
$pass++;
}
print "$total decomposition mappings ($canon canonical, $compat compatibility)\n";
$out = fopen("UtfNormalData.inc", "wt");
if( $out ) {
$serCombining = escapeSingleString( serialize( $combiningClass ) );
$serComp = escapeSingleString( serialize( $canonicalComp ) );
$serCanon = escapeSingleString( serialize( $canonicalDecomp ) );
$serCheckNFC = escapeSingleString( serialize( $checkNFC ) );
$outdata = "<" . "?php
/**
* This file was automatically generated -- do not edit!
* Run UtfNormalGenerate.php to create this file again (make clean && make)
* @package MediaWiki
*/
/** */
global \$utfCombiningClass, \$utfCanonicalComp, \$utfCanonicalDecomp, \$utfCheckNFC;
\$utfCombiningClass = unserialize( '$serCombining' );
\$utfCanonicalComp = unserialize( '$serComp' );
\$utfCanonicalDecomp = unserialize( '$serCanon' );
\$utfCheckNFC = unserialize( '$serCheckNFC' );
?" . ">\n";
fputs( $out, $outdata );
fclose( $out );
print "Wrote out UtfNormalData.inc\n";
} else {
print "Can't create file UtfNormalData.inc\n";
exit(-1);
}
$out = fopen("UtfNormalDataK.inc", "wt");
if( $out ) {
$serCompat = escapeSingleString( serialize( $compatibilityDecomp ) );
$outdata = "<" . "?php
/**
* This file was automatically generated -- do not edit!
* Run UtfNormalGenerate.php to create this file again (make clean && make)
* @package MediaWiki
*/
/** */
global \$utfCompatibilityDecomp;
\$utfCompatibilityDecomp = unserialize( '$serCompat' );
?" . ">\n";
fputs( $out, $outdata );
fclose( $out );
print "Wrote out UtfNormalDataK.inc\n";
exit(0);
} else {
print "Can't create file UtfNormalDataK.inc\n";
exit(-1);
}
# ---------------
function callbackCanonical( $matches ) {
global $canonicalDecomp;
if( isset( $canonicalDecomp[$matches[1]] ) ) {
return $canonicalDecomp[$matches[1]];
}
return $matches[1];
}
function callbackCompat( $matches ) {
global $compatibilityDecomp;
if( isset( $compatibilityDecomp[$matches[1]] ) ) {
return $compatibilityDecomp[$matches[1]];
}
return $matches[1];
}
?>
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