mirror of
https://github.com/phpbb/phpbb.git
synced 2025-02-08 01:35:17 +01:00
571 lines
12 KiB
PHP
571 lines
12 KiB
PHP
<?php
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/**
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*
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* @package phpBB3
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* @copyright (c) 2005 phpBB Group
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* @license http://opensource.org/licenses/gpl-2.0.php GNU General Public License v2
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*
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*/
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if (php_sapi_name() != 'cli')
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{
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die("This program must be run from the command line.\n");
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}
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//
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// Security message:
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//
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// This script is potentially dangerous.
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// Remove or comment the next line (die(".... ) to enable this script.
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// Do NOT FORGET to either remove this script or disable it after you have used it.
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//
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die("Please read the first lines of this script for instructions on how to enable it");
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set_time_limit(0);
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define('IN_PHPBB', true);
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$phpbb_root_path = '../';
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$phpEx = substr(strrchr(__FILE__, '.'), 1);
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echo "Checking for required files\n";
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download('http://www.unicode.org/Public/UNIDATA/CompositionExclusions.txt');
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download('http://www.unicode.org/Public/UNIDATA/DerivedNormalizationProps.txt');
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download('http://www.unicode.org/Public/UNIDATA/UnicodeData.txt');
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echo "\n";
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require_once($phpbb_root_path . 'includes/utf/utf_normalizer.' . $phpEx);
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$file_contents = array();
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/**
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* Generate some Hangul/Jamo stuff
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*/
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echo "\nGenerating Hangul and Jamo tables\n";
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for ($i = 0; $i < UNICODE_HANGUL_LCOUNT; ++$i)
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{
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$utf_char = cp_to_utf(UNICODE_HANGUL_LBASE + $i);
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$file_contents['utf_normalizer_common']['utf_jamo_index'][$utf_char] = $i * UNICODE_HANGUL_VCOUNT * UNICODE_HANGUL_TCOUNT + UNICODE_HANGUL_SBASE;
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$file_contents['utf_normalizer_common']['utf_jamo_type'][$utf_char] = UNICODE_JAMO_L;
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}
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for ($i = 0; $i < UNICODE_HANGUL_VCOUNT; ++$i)
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{
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$utf_char = cp_to_utf(UNICODE_HANGUL_VBASE + $i);
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$file_contents['utf_normalizer_common']['utf_jamo_index'][$utf_char] = $i * UNICODE_HANGUL_TCOUNT;
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$file_contents['utf_normalizer_common']['utf_jamo_type'][$utf_char] = UNICODE_JAMO_V;
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}
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for ($i = 0; $i < UNICODE_HANGUL_TCOUNT; ++$i)
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{
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$utf_char = cp_to_utf(UNICODE_HANGUL_TBASE + $i);
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$file_contents['utf_normalizer_common']['utf_jamo_index'][$utf_char] = $i;
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$file_contents['utf_normalizer_common']['utf_jamo_type'][$utf_char] = UNICODE_JAMO_T;
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}
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/**
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* Load the CompositionExclusions table
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*/
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echo "Loading CompositionExclusion\n";
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$fp = fopen('CompositionExclusions.txt', 'rt');
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$exclude = array();
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while (!feof($fp))
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{
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$line = fgets($fp, 1024);
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if (!strpos(' 0123456789ABCDEFabcdef', $line[0]))
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{
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continue;
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}
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$cp = strtok($line, ' ');
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if ($pos = strpos($cp, '..'))
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{
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$start = hexdec(substr($cp, 0, $pos));
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$end = hexdec(substr($cp, $pos + 2));
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for ($i = $start; $i < $end; ++$i)
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{
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$exclude[$i] = 1;
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}
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}
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else
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{
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$exclude[hexdec($cp)] = 1;
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}
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}
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fclose($fp);
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/**
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* Load QuickCheck tables
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*/
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echo "Generating QuickCheck tables\n";
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$fp = fopen('DerivedNormalizationProps.txt', 'rt');
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while (!feof($fp))
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{
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$line = fgets($fp, 1024);
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if (!strpos(' 0123456789ABCDEFabcdef', $line[0]))
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{
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continue;
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}
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$p = array_map('trim', explode(';', strtok($line, '#')));
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/**
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* Capture only NFC_QC, NFKC_QC
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*/
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if (!preg_match('#^NFK?C_QC$#', $p[1]))
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{
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continue;
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}
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if ($pos = strpos($p[0], '..'))
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{
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$start = hexdec(substr($p[0], 0, $pos));
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$end = hexdec(substr($p[0], $pos + 2));
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}
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else
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{
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$start = $end = hexdec($p[0]);
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}
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if ($start >= UTF8_HANGUL_FIRST && $end <= UTF8_HANGUL_LAST)
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{
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/**
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* We do not store Hangul syllables in the array
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*/
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continue;
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}
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if ($p[2] == 'M')
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{
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$val = UNICODE_QC_MAYBE;
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}
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else
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{
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$val = UNICODE_QC_NO;
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}
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if ($p[1] == 'NFKC_QC')
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{
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$file = 'utf_nfkc_qc';
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}
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else
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{
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$file = 'utf_nfc_qc';
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}
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for ($i = $start; $i <= $end; ++$i)
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{
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/**
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* The vars have the same name as the file: $utf_nfc_qc is in utf_nfc_qc.php
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*/
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$file_contents[$file][$file][cp_to_utf($i)] = $val;
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}
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}
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fclose($fp);
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/**
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* Do mappings
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*/
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echo "Loading Unicode decomposition mappings\n";
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$fp = fopen($phpbb_root_path . 'develop/UnicodeData.txt', 'rt');
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$map = array();
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while (!feof($fp))
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{
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$p = explode(';', fgets($fp, 1024));
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$cp = hexdec($p[0]);
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if (!empty($p[3]))
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{
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/**
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* Store combining class > 0
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*/
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$file_contents['utf_normalizer_common']['utf_combining_class'][cp_to_utf($cp)] = (int) $p[3];
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}
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if (!isset($p[5]) || !preg_match_all('#[0-9A-F]+#', strip_tags($p[5]), $m))
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{
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continue;
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}
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if (strpos($p[5], '>'))
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{
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$map['NFKD'][$cp] = implode(' ', array_map('hexdec', $m[0]));
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}
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else
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{
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$map['NFD'][$cp] = $map['NFKD'][$cp] = implode(' ', array_map('hexdec', $m[0]));
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}
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}
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fclose($fp);
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/**
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* Build the canonical composition table
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*/
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echo "Generating the Canonical Composition table\n";
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foreach ($map['NFD'] as $cp => $decomp_seq)
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{
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if (!strpos($decomp_seq, ' ') || isset($exclude[$cp]))
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{
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/**
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* Singletons are excluded from canonical composition
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*/
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continue;
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}
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$utf_seq = implode('', array_map('cp_to_utf', explode(' ', $decomp_seq)));
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if (!isset($file_contents['utf_canonical_comp']['utf_canonical_comp'][$utf_seq]))
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{
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$file_contents['utf_canonical_comp']['utf_canonical_comp'][$utf_seq] = cp_to_utf($cp);
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}
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}
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/**
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* Decompose the NF[K]D mappings recursively and prepare the file contents
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*/
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echo "Generating the Canonical and Compatibility Decomposition tables\n\n";
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foreach ($map as $type => $decomp_map)
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{
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foreach ($decomp_map as $cp => $decomp_seq)
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{
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$decomp_map[$cp] = decompose($decomp_map, $decomp_seq);
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}
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unset($decomp_seq);
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if ($type == 'NFKD')
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{
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$file = 'utf_compatibility_decomp';
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$var = 'utf_compatibility_decomp';
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}
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else
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{
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$file = 'utf_canonical_decomp';
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$var = 'utf_canonical_decomp';
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}
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/**
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* Generate the corresponding file
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*/
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foreach ($decomp_map as $cp => $decomp_seq)
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{
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$file_contents[$file][$var][cp_to_utf($cp)] = implode('', array_map('cp_to_utf', explode(' ', $decomp_seq)));
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}
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}
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/**
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* Generate and/or alter the files
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*/
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foreach ($file_contents as $file => $contents)
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{
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/**
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* Generate a new file
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*/
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echo "Writing to $file.$phpEx\n";
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if (!$fp = fopen($phpbb_root_path . 'includes/utf/data/' . $file . '.' . $phpEx, 'wb'))
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{
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trigger_error('Cannot open ' . $file . ' for write');
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}
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fwrite($fp, '<?php');
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foreach ($contents as $var => $val)
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{
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fwrite($fp, "\n\$GLOBALS[" . my_var_export($var) . ']=' . my_var_export($val) . ";");
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}
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fclose($fp);
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}
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echo "\n*** UTF-8 normalization tables done\n\n";
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/**
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* Now we'll generate the files needed by the search indexer
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*/
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echo "Generating search indexer tables\n";
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$fp = fopen($phpbb_root_path . 'develop/UnicodeData.txt', 'rt');
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$map = array();
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while ($line = fgets($fp, 1024))
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{
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/**
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* The current line is split, $m[0] hold the codepoint in hexadecimal and
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* all other fields numbered as in http://www.unicode.org/Public/UNIDATA/UCD.html#UnicodeData.txt
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*/
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$m = explode(';', $line);
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/**
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* @var integer $cp Current char codepoint
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* @var string $utf_char UTF-8 representation of current char
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*/
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$cp = hexdec($m[0]);
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$utf_char = cp_to_utf($cp);
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/**
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* $m[2] holds the "General Category" of the character
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* @link http://www.unicode.org/Public/UNIDATA/UCD.html#General_Category_Values
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*/
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switch ($m[2][0])
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{
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case 'L':
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/**
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* We allow all letters and map them to their lowercased counterpart on the fly
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*/
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$map_to_hex = (isset($m[13][0])) ? $m[13] : $m[0];
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if (preg_match('#^LATIN.*(?:LETTER|LIGATURE) ([A-Z]{2}(?![A-Z]))$#', $m[1], $capture))
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{
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/**
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* Special hack for some latin ligatures. Using the name of a character
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* is bad practice, but for now it works well enough.
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*
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* @todo Note that ligatures with combining marks such as U+01E2 are
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* not supported at this time
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*/
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$map[$cp] = strtolower($capture[1]);
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}
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else if (isset($m[13][0]))
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{
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/**
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* If the letter has a lowercased form, use it
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*/
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$map[$cp] = hex_to_utf($m[13]);
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}
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else
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{
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/**
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* In all other cases, map the letter to itself
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*/
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$map[$cp] = $utf_char;
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}
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break;
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case 'M':
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/**
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* We allow all marks, they are mapped to themselves
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*/
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$map[$cp] = $utf_char;
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break;
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case 'N':
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/**
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* We allow all numbers, but we map them to their numeric value whenever
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* possible. The numeric value (field #8) is in ASCII already
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*
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* @todo Note that fractions such as U+00BD will be converted to something
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* like "1/2", with a slash. However, "1/2" entered in ASCII is converted
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* to "1 2". This will have to be fixed.
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*/
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$map[$cp] = (isset($m[8][0])) ? $m[8] : $utf_char;
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break;
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default:
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/**
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* Everything else is ignored, skip to the next line
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*/
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continue 2;
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}
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}
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fclose($fp);
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/**
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* Add some cheating
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*/
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$cheats = array(
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'00DF' => 'ss', # German sharp S
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'00C5' => 'ae', # Capital A with diaeresis
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'00E4' => 'ae', # Small A with diaeresis
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'00D6' => 'oe', # Capital O with diaeresis
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'00F6' => 'oe', # Small O with diaeresis
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'00DC' => 'ue', # Capital U with diaeresis
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'00FC' => 'ue', # Small U with diaeresis
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);
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/**
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* Add our "cheat replacements" to the map
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*/
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foreach ($cheats as $hex => $map_to)
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{
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$map[hexdec($hex)] = $map_to;
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}
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/**
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* Split the map into smaller blocks
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*/
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$file_contents = array();
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foreach ($map as $cp => $map_to)
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{
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$file_contents[$cp >> 11][cp_to_utf($cp)] = $map_to;
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}
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unset($map);
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foreach ($file_contents as $idx => $contents)
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{
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echo "Writing to search_indexer_$idx.$phpEx\n";
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$fp = fopen($phpbb_root_path . 'includes/utf/data/search_indexer_' . $idx . '.' . $phpEx, 'wb');
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fwrite($fp, '<?php return ' . my_var_export($contents) . ';');
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fclose($fp);
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}
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echo "\n*** Search indexer tables done\n\n";
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die("\nAll done!\n");
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////////////////////////////////////////////////////////////////////////////////
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// Internal functions //
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////////////////////////////////////////////////////////////////////////////////
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/**
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* Decompose a sequence recusively
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*
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* @param array $decomp_map Decomposition mapping, passed by reference
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* @param string $decomp_seq Decomposition sequence as decimal codepoints separated with a space
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* @return string Decomposition sequence, fully decomposed
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*/
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function decompose(&$decomp_map, $decomp_seq)
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{
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$ret = array();
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foreach (explode(' ', $decomp_seq) as $cp)
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{
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if (isset($decomp_map[$cp]))
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{
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$ret[] = decompose($decomp_map, $decomp_map[$cp]);
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}
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else
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{
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$ret[] = $cp;
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}
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}
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return implode(' ', $ret);
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}
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/**
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* Return a parsable string representation of a variable
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*
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* This is function is limited to array/strings/integers
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*
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* @param mixed $var Variable
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* @return string PHP code representing the variable
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*/
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function my_var_export($var)
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{
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if (is_array($var))
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{
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$lines = array();
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foreach ($var as $k => $v)
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{
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$lines[] = my_var_export($k) . '=>' . my_var_export($v);
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}
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return 'array(' . implode(',', $lines) . ')';
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}
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else if (is_string($var))
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{
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return "'" . str_replace(array('\\', "'"), array('\\\\', "\\'"), $var) . "'";
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}
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else
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{
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return $var;
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}
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}
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/**
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* Download a file to the develop/ dir
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*
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* @param string $url URL of the file to download
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* @return null
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*/
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function download($url)
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{
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global $phpbb_root_path;
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if (file_exists($phpbb_root_path . 'develop/' . basename($url)))
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{
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return;
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}
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echo 'Downloading from ', $url, ' ';
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if (!$fpr = fopen($url, 'rb'))
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{
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die("Can't download from $url\nPlease download it yourself and put it in the develop/ dir, kthxbai");
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}
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if (!$fpw = fopen($phpbb_root_path . 'develop/' . basename($url), 'wb'))
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{
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die("Can't open develop/" . basename($url) . " for output... please check your permissions or something");
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}
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$i = 0;
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$chunk = 32768;
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$done = '';
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while (!feof($fpr))
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{
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$i += fwrite($fpw, fread($fpr, $chunk));
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echo str_repeat("\x08", strlen($done));
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$done = ($i >> 10) . ' KiB';
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echo $done;
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}
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fclose($fpr);
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fclose($fpw);
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echo "\n";
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}
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/**
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* Convert a codepoint in hexadecimal to a UTF-8 char
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*
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* @param string $hex Codepoint, in hexadecimal
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* @return string UTF-8 char
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*/
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function hex_to_utf($hex)
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{
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return cp_to_utf(hexdec($hex));
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}
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/**
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* Return a UTF string formed from a sequence of codepoints in hexadecimal
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*
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* @param string $seq Sequence of codepoints, separated with a space
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* @return string UTF-8 string
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*/
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function hexseq_to_utf($seq)
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{
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return implode('', array_map('hex_to_utf', explode(' ', $seq)));
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}
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/**
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* Convert a codepoint to a UTF-8 char
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*
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* @param integer $cp Unicode codepoint
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* @return string UTF-8 string
|
|
*/
|
|
function cp_to_utf($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);
|
|
}
|
|
} |