499 Zeilen
17 KiB
PHP
499 Zeilen
17 KiB
PHP
<?php // vi: set fenc=utf-8 ts=4 sw=4 et:
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/*
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* Copyright (C) 2013 Nicolas Grekas - p@tchwork.com
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*
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* This library is free software; you can redistribute it and/or modify it
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* under the terms of the (at your option):
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* Apache License v2.0 (http://apache.org/licenses/LICENSE-2.0.txt), or
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* GNU General Public License v2.0 (http://gnu.org/licenses/gpl-2.0.txt).
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*/
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namespace Patchwork;
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use Normalizer as n;
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/**
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* UTF-8 Grapheme Cluster aware string manipulations implementing the quasi complete
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* set of native PHP string functions that need UTF-8 awareness and more.
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* Missing are printf-family functions.
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*/
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class Utf8
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{
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protected static
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$commonCaseFold = array(
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array('µ','ſ',"\xCD\x85",'ς',"\xCF\x90","\xCF\x91","\xCF\x95","\xCF\x96","\xCF\xB0","\xCF\xB1","\xCF\xB5","\xE1\xBA\x9B","\xE1\xBE\xBE"),
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array('μ','s','ι', 'σ','β', 'θ', 'φ', 'π', 'κ', 'ρ', 'ε', "\xE1\xB9\xA1",'ι' )
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),
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$cp1252 = array('','','','','
','','','','','','','','','','','','','','','','','','','','','',''),
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$utf8 = array('€','‚','ƒ','„','…','†','‡','ˆ','‰','Š','‹','Œ','Ž','‘','’','“','”','•','–','—','˜','™','š','›','œ','ž','Ÿ');
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static function isUtf8($s)
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{
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return (bool) preg_match('//u', $s); // Since PHP 5.2.5, this also excludes invalid five and six bytes sequences
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}
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// Generic UTF-8 to ASCII transliteration
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static function toAscii($s)
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{
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if (preg_match("/[\x80-\xFF]/", $s))
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{
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static $translitExtra = false;
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$translitExtra or $translitExtra = self::getData('translit_extra');
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$s = n::normalize($s, n::NFKD);
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$s = preg_replace('/\p{Mn}+/u', '', $s);
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$s = str_replace($translitExtra[0], $translitExtra[1], $s);
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$s = iconv('UTF-8', 'ASCII' . ('glibc' !== ICONV_IMPL ? '//IGNORE' : '') . '//TRANSLIT', $s);
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}
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return $s;
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}
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// Unicode transformation for caseless matching
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// see http://unicode.org/reports/tr21/tr21-5.html
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static function strtocasefold($s, $full = true, $turkish = false)
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{
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$s = str_replace(self::$commonCaseFold[0], self::$commonCaseFold[1], $s);
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if ($turkish)
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{
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false !== strpos($s, 'I') && $s = str_replace('I', 'ı', $s);
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$full && false !== strpos($s, 'İ') && $s = str_replace('İ', 'i', $s);
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}
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if ($full)
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{
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static $fullCaseFold = false;
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$fullCaseFold || $fullCaseFold = self::getData('caseFolding_full');
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$s = str_replace($fullCaseFold[0], $fullCaseFold[1], $s);
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}
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return self::strtolower($s);
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}
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// Generic case sensitive collation support for self::strnatcmp()
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static function strtonatfold($s)
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{
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$s = n::normalize($s, n::NFD);
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return preg_replace('/\p{Mn}+/u', '', $s);
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}
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// PHP string functions that need UTF-8 awareness
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static function substr($s, $start, $len = 2147483647)
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{
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/**/ static $bug62759;
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/**/ isset($bug62759) or $bug62759 = extension_loaded('intl') && 'à' === grapheme_substr('éà', 1, -2);
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/**/ if ($bug62759)
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/**/ {
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return PHP\Shim\Intl::grapheme_substr_workaround62759($s, $start, $len);
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/**/ }
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/**/ else
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/**/ {
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return grapheme_substr($s, $start, $len);
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/**/ }
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}
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static function strlen($s) {return grapheme_strlen($s);}
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static function strpos ($s, $needle, $offset = 0) {return grapheme_strpos ($s, $needle, $offset);}
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static function strrpos($s, $needle, $offset = 0) {return grapheme_strrpos($s, $needle, $offset);}
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static function stripos($s, $needle, $offset = 0)
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{
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/**/ if (50418 > PHP_VERSION_ID || 50500 == PHP_VERSION_ID)
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/**/ {
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// Don't use grapheme_stripos because of https://bugs.php.net/61860
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if ($offset < 0) $offset = 0;
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if (!$needle = mb_stripos($s, $needle, $offset, 'UTF-8')) return $needle;
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return grapheme_strlen(iconv_substr($s, 0, $needle, 'UTF-8'));
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/**/ }
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/**/ else
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/**/ {
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return grapheme_stripos($s, $needle, $offset);
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/**/ }
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}
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static function strripos($s, $needle, $offset = 0)
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{
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/**/ if (50418 > PHP_VERSION_ID || 50500 == PHP_VERSION_ID)
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/**/ {
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// Don't use grapheme_strripos because of https://bugs.php.net/61860
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if ($offset < 0) $offset = 0;
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if (!$needle = mb_strripos($s, $needle, $offset, 'UTF-8')) return $needle;
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return grapheme_strlen(iconv_substr($s, 0, $needle, 'UTF-8'));
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/**/ }
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/**/ else
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/**/ {
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return grapheme_strripos($s, $needle, $offset);
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/**/ }
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}
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static function stristr($s, $needle, $before_needle = false)
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{
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if ('' === (string) $needle) return false;
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return mb_stristr($s, $needle, $before_needle, 'UTF-8');
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}
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static function strstr ($s, $needle, $before_needle = false) {return grapheme_strstr($s, $needle, $before_needle);}
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static function strrchr ($s, $needle, $before_needle = false) {return mb_strrchr ($s, $needle, $before_needle, 'UTF-8');}
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static function strrichr($s, $needle, $before_needle = false) {return mb_strrichr($s, $needle, $before_needle, 'UTF-8');}
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static function strtolower($s, $form = n::NFC) {if (n::isNormalized($s = mb_strtolower($s, 'UTF-8'), $form)) return $s; return n::normalize($s, $form);}
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static function strtoupper($s, $form = n::NFC) {if (n::isNormalized($s = mb_strtoupper($s, 'UTF-8'), $form)) return $s; return n::normalize($s, $form);}
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static function wordwrap($s, $width = 75, $break = "\n", $cut = false)
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{
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// This implementation could be extended to handle unicode word boundaries,
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// but that's enough work for today (see http://www.unicode.org/reports/tr29/)
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$width = (int) $width;
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$s = explode($break, $s);
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$iLen = count($s);
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$result = array();
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$line = '';
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$lineLen = 0;
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for ($i = 0; $i < $iLen; ++$i)
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{
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$words = explode(' ', $s[$i]);
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$line && $result[] = $line;
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$lineLen = grapheme_strlen($line);
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$jLen = count($words);
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for ($j = 0; $j < $jLen; ++$j)
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{
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$w = $words[$j];
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$wLen = grapheme_strlen($w);
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if ($lineLen + $wLen < $width)
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{
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if ($j) $line .= ' ';
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$line .= $w;
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$lineLen += $wLen + 1;
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}
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else
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{
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if ($j || $i) $result[] = $line;
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$line = '';
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$lineLen = 0;
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if ($cut && $wLen > $width)
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{
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$w = self::str_split($w);
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do
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{
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$result[] = implode('', array_slice($w, 0, $width));
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$line = implode('', $w = array_slice($w, $width));
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$lineLen = $wLen -= $width;
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}
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while ($wLen > $width);
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$w = implode('', $w);
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}
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$line = $w;
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$lineLen = $wLen;
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}
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}
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}
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$line && $result[] = $line;
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return implode($break, $result);
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}
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static function chr($c)
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{
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if (0x80 > $c %= 0x200000) return chr($c);
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if (0x800 > $c) return chr(0xC0 | $c>>6) . chr(0x80 | $c & 0x3F);
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if (0x10000 > $c) return chr(0xE0 | $c>>12) . chr(0x80 | $c>>6 & 0x3F) . chr(0x80 | $c & 0x3F);
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return chr(0xF0 | $c>>18) . chr(0x80 | $c>>12 & 0x3F) . chr(0x80 | $c>>6 & 0x3F) . chr(0x80 | $c & 0x3F);
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}
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static function count_chars($s, $mode = 0)
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{
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if (1 != $mode) user_error(__METHOD__ . '(): the only allowed $mode is 1', E_USER_WARNING);
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$s = self::str_split($s);
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return array_count_values($s);
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}
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static function ltrim($s, $charlist = INF)
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{
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$charlist = INF === $charlist ? '\s' : self::rxClass($charlist);
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return preg_replace("/^{$charlist}+/u", '', $s);
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}
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static function ord($s)
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{
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$a = ($s = unpack('C*', substr($s, 0, 4))) ? $s[1] : 0;
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if (0xF0 <= $a) return (($a - 0xF0)<<18) + (($s[2] - 0x80)<<12) + (($s[3] - 0x80)<<6) + $s[4] - 0x80;
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if (0xE0 <= $a) return (($a - 0xE0)<<12) + (($s[2] - 0x80)<<6) + $s[3] - 0x80;
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if (0xC0 <= $a) return (($a - 0xC0)<<6) + $s[2] - 0x80;
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return $a;
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}
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static function rtrim($s, $charlist = INF)
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{
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$charlist = INF === $charlist ? '\s' : self::rxClass($charlist);
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return preg_replace("/{$charlist}+$/u", '', $s);
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}
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static function trim($s, $charlist = INF) {return self::rtrim(self::ltrim($s, $charlist), $charlist);}
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static function str_ireplace($search, $replace, $subject, &$count = null)
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{
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$search = (array) $search;
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foreach ($search as &$s) $s = '' !== (string) $s ? '/' . preg_quote($s, '/') . '/ui' : '/^(?<=.)$/';
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$subject = preg_replace($search, $replace, $subject, -1, $replace);
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$count = $replace;
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return $subject;
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}
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static function str_pad($s, $len, $pad = ' ', $type = STR_PAD_RIGHT)
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{
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$slen = grapheme_strlen($s);
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if ($len <= $slen) return $s;
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$padlen = grapheme_strlen($pad);
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$freelen = $len - $slen;
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$len = $freelen % $padlen;
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if (STR_PAD_RIGHT == $type) return $s . str_repeat($pad, $freelen / $padlen) . ($len ? grapheme_substr($pad, 0, $len) : '');
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if (STR_PAD_LEFT == $type) return str_repeat($pad, $freelen / $padlen) . ($len ? grapheme_substr($pad, 0, $len) : '') . $s;
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if (STR_PAD_BOTH == $type)
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{
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$freelen /= 2;
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$type = ceil($freelen);
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$len = $type % $padlen;
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$s .= str_repeat($pad, $type / $padlen) . ($len ? grapheme_substr($pad, 0, $len) : '');
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$type = floor($freelen);
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$len = $type % $padlen;
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return str_repeat($pad, $type / $padlen) . ($len ? grapheme_substr($pad, 0, $len) : '') . $s;
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}
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user_error(__METHOD__ . '(): Padding type has to be STR_PAD_LEFT, STR_PAD_RIGHT, or STR_PAD_BOTH', E_USER_WARNING);
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}
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static function str_shuffle($s)
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{
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$s = self::str_split($s);
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shuffle($s);
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return implode('', $s);
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}
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static function str_split($s, $len = 1)
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{
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if (1 > $len = (int) $len)
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{
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$len = func_get_arg(1);
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return str_split($s, $len);
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}
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/**/ if (extension_loaded('intl'))
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/**/ {
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$a = array();
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$p = 0;
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$l = strlen($s);
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while ($p < $l) $a[] = grapheme_extract($s, 1, GRAPHEME_EXTR_COUNT, $p, $p);
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/**/ }
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/**/ else
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/**/ {
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preg_match_all('/' . GRAPHEME_CLUSTER_RX . '/u', $s, $a);
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$a = $a[0];
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/**/ }
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if (1 == $len) return $a;
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$s = array();
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$p = -1;
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foreach ($a as $l => $a)
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{
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if ($l % $len) $s[$p] .= $a;
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else $s[++$p] = $a;
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}
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return $s;
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}
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static function str_word_count($s, $format = 0, $charlist = '')
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{
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$charlist = self::rxClass($charlist, '\pL');
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$s = preg_split("/({$charlist}+(?:[\p{Pd}’']{$charlist}+)*)/u", $s, -1, PREG_SPLIT_DELIM_CAPTURE);
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$charlist = array();
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$len = count($s);
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if (1 == $format) for ($i = 1; $i < $len; $i+=2) $charlist[] = $s[$i];
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else if (2 == $format)
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{
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$offset = grapheme_strlen($s[0]);
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for ($i = 1; $i < $len; $i+=2)
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{
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$charlist[$offset] = $s[$i];
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$offset += grapheme_strlen($s[$i]) + grapheme_strlen($s[$i+1]);
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}
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}
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else $charlist = ($len - 1) / 2;
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return $charlist;
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}
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static function strcmp ($a, $b) {return (string) $a === (string) $b ? 0 : strcmp(n::normalize($a, n::NFD), n::normalize($b, n::NFD));}
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static function strnatcmp ($a, $b) {return (string) $a === (string) $b ? 0 : strnatcmp(self::strtonatfold($a), self::strtonatfold($b));}
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static function strcasecmp ($a, $b) {return self::strcmp (self::strtocasefold($a), self::strtocasefold($b));}
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static function strnatcasecmp($a, $b) {return self::strnatcmp(self::strtocasefold($a), self::strtocasefold($b));}
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static function strncasecmp ($a, $b, $len) {return self::strncmp(self::strtocasefold($a), self::strtocasefold($b), $len);}
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static function strncmp ($a, $b, $len) {return self::strcmp(self::substr($a, 0, $len), self::substr($b, 0, $len));}
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static function strcspn($s, $charlist, $start = 0, $len = 2147483647)
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{
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if ('' === (string) $charlist) return null;
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if ($start || 2147483647 != $len) $s = self::substr($s, $start, $len);
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return preg_match('/^(.*?)' . self::rxClass($charlist) . '/us', $s, $len) ? grapheme_strlen($len[1]) : grapheme_strlen($s);
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}
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static function strpbrk($s, $charlist)
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{
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if (preg_match('/' . self::rxClass($charlist) . '/us', $s, $m)) return substr($s, strpos($s, $m[0]));
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else return false;
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}
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static function strrev($s)
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{
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$s = self::str_split($s);
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return implode('', array_reverse($s));
|
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}
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static function strspn($s, $mask, $start = 0, $len = 2147483647)
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{
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if ($start || 2147483647 != $len) $s = self::substr($s, $start, $len);
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return preg_match('/^' . self::rxClass($mask) . '+/u', $s, $s) ? grapheme_strlen($s[0]) : 0;
|
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}
|
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|
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static function strtr($s, $from, $to = INF)
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{
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if (INF !== $to)
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{
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$from = self::str_split($from);
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$to = self::str_split($to);
|
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$a = count($from);
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$b = count($to);
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if ($a > $b) $from = array_slice($from, 0, $b);
|
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else if ($a < $b) $to = array_slice($to , 0, $a);
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$from = array_combine($from, $to);
|
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}
|
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return strtr($s, $from);
|
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}
|
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|
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static function substr_compare($a, $b, $offset, $len = 2147483647, $i = 0)
|
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{
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$a = self::substr($a, $offset, $len);
|
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return $i ? self::strcasecmp($a, $b) : self::strcmp($a, $b);
|
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}
|
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|
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static function substr_count($s, $needle, $offset = 0, $len = 2147483647)
|
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{
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return substr_count(self::substr($s, $offset, $len), $needle);
|
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}
|
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static function substr_replace($s, $replace, $start, $len = 2147483647)
|
||
{
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$s = self::str_split($s);
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$replace = self::str_split($replace);
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array_splice($s, $start, $len, $replace);
|
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return implode('', $s);
|
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}
|
||
|
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static function ucfirst($s)
|
||
{
|
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$c = iconv_substr($s, 0, 1, 'UTF-8');
|
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return self::ucwords($c) . substr($s, strlen($c));
|
||
}
|
||
|
||
static function lcfirst($s)
|
||
{
|
||
$c = iconv_substr($s, 0, 1, 'UTF-8');
|
||
return mb_strtolower($c, 'UTF-8') . substr($s, strlen($c));
|
||
}
|
||
|
||
static function ucwords($s)
|
||
{
|
||
return mb_convert_case($s, MB_CASE_TITLE, 'UTF-8');
|
||
}
|
||
|
||
static function number_format($number, $decimals = 0, $dec_point = '.', $thousands_sep = ',')
|
||
{
|
||
/**/ if (PHP_VERSION_ID < 50400)
|
||
/**/ {
|
||
if (isset($thousands_sep[1]) || isset($dec_point[1]))
|
||
{
|
||
return str_replace(
|
||
array('.', ','),
|
||
array($dec_point, $thousands_sep),
|
||
number_format($number, $decimals, '.', ',')
|
||
);
|
||
}
|
||
/**/ }
|
||
|
||
return number_format($number, $decimals, $dec_point, $thousands_sep);
|
||
}
|
||
|
||
static function utf8_encode($s)
|
||
{
|
||
$s = utf8_encode($s);
|
||
if (false === strpos($s, "\xC2")) return $s;
|
||
else return str_replace(self::$cp1252, self::$utf8, $s);
|
||
}
|
||
|
||
static function utf8_decode($s)
|
||
{
|
||
$s = str_replace(self::$utf8, self::$cp1252, $s);
|
||
return utf8_decode($s);
|
||
}
|
||
|
||
|
||
protected static function rxClass($s, $class = '')
|
||
{
|
||
$class = array($class);
|
||
|
||
foreach (self::str_split($s) as $s)
|
||
{
|
||
if ('-' === $s) $class[0] = '-' . $class[0];
|
||
else if (!isset($s[2])) $class[0] .= preg_quote($s, '/');
|
||
else if (1 === iconv_strlen($s, 'UTF-8')) $class[0] .= $s;
|
||
else $class[] = $s;
|
||
}
|
||
|
||
$class[0] = '[' . $class[0] . ']';
|
||
|
||
if (1 === count($class)) return $class[0];
|
||
else return '(?:' . implode('|', $class) . ')';
|
||
}
|
||
|
||
protected static function getData($file)
|
||
{
|
||
$file = __DIR__ . '/Utf8/data/' . $file . '.ser';
|
||
if (file_exists($file)) return unserialize(file_get_contents($file));
|
||
else return false;
|
||
}
|
||
}
|