keboola/syrup-component-bundle

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Utility/Utility.php

Summary

Maintainability
B
6 hrs
Test Coverage
<?php
/**
 * Created by Miroslav Čillík <miro@keboola.com>
 * Date: 05/02/14
 * Time: 15:43
 */

namespace Syrup\ComponentBundle\Utility;

class Utility
{
    /**
     * Remove any illegal characters, accents, etc.
     *
     * @param  string $string  String to unaccent
     * @return string $string  Unaccented string
     */
    public static function unaccent($string)
    {
        if (!preg_match('/[\x80-\xff]/', $string)) {
            return $string;
        }

        if (self::seemsUtf8($string)) {
            $chars = array(
                // Decompositions for Latin-1 Supplement
                chr(195).chr(128) => 'A', chr(195).chr(129) => 'A',
                chr(195).chr(130) => 'A', chr(195).chr(131) => 'A',
                chr(195).chr(132) => 'A', chr(195).chr(133) => 'A',
                chr(195).chr(135) => 'C', chr(195).chr(136) => 'E',
                chr(195).chr(137) => 'E', chr(195).chr(138) => 'E',
                chr(195).chr(139) => 'E', chr(195).chr(140) => 'I',
                chr(195).chr(141) => 'I', chr(195).chr(142) => 'I',
                chr(195).chr(143) => 'I', chr(195).chr(145) => 'N',
                chr(195).chr(146) => 'O', chr(195).chr(147) => 'O',
                chr(195).chr(148) => 'O', chr(195).chr(149) => 'O',
                chr(195).chr(150) => 'O', chr(195).chr(153) => 'U',
                chr(195).chr(154) => 'U', chr(195).chr(155) => 'U',
                chr(195).chr(156) => 'U', chr(195).chr(157) => 'Y',
                chr(195).chr(159) => 's', chr(195).chr(160) => 'a',
                chr(195).chr(161) => 'a', chr(195).chr(162) => 'a',
                chr(195).chr(163) => 'a', chr(195).chr(164) => 'a',
                chr(195).chr(165) => 'a', chr(195).chr(167) => 'c',
                chr(195).chr(168) => 'e', chr(195).chr(169) => 'e',
                chr(195).chr(170) => 'e', chr(195).chr(171) => 'e',
                chr(195).chr(172) => 'i', chr(195).chr(173) => 'i',
                chr(195).chr(174) => 'i', chr(195).chr(175) => 'i',
                chr(195).chr(177) => 'n', chr(195).chr(178) => 'o',
                chr(195).chr(179) => 'o', chr(195).chr(180) => 'o',
                chr(195).chr(181) => 'o', chr(195).chr(182) => 'o',
                chr(195).chr(182) => 'o', chr(195).chr(185) => 'u',
                chr(195).chr(186) => 'u', chr(195).chr(187) => 'u',
                chr(195).chr(188) => 'u', chr(195).chr(189) => 'y',
                chr(195).chr(191) => 'y',
                // Decompositions for Latin Extended-A
                chr(196).chr(128) => 'A', chr(196).chr(129) => 'a',
                chr(196).chr(130) => 'A', chr(196).chr(131) => 'a',
                chr(196).chr(132) => 'A', chr(196).chr(133) => 'a',
                chr(196).chr(134) => 'C', chr(196).chr(135) => 'c',
                chr(196).chr(136) => 'C', chr(196).chr(137) => 'c',
                chr(196).chr(138) => 'C', chr(196).chr(139) => 'c',
                chr(196).chr(140) => 'C', chr(196).chr(141) => 'c',
                chr(196).chr(142) => 'D', chr(196).chr(143) => 'd',
                chr(196).chr(144) => 'D', chr(196).chr(145) => 'd',
                chr(196).chr(146) => 'E', chr(196).chr(147) => 'e',
                chr(196).chr(148) => 'E', chr(196).chr(149) => 'e',
                chr(196).chr(150) => 'E', chr(196).chr(151) => 'e',
                chr(196).chr(152) => 'E', chr(196).chr(153) => 'e',
                chr(196).chr(154) => 'E', chr(196).chr(155) => 'e',
                chr(196).chr(156) => 'G', chr(196).chr(157) => 'g',
                chr(196).chr(158) => 'G', chr(196).chr(159) => 'g',
                chr(196).chr(160) => 'G', chr(196).chr(161) => 'g',
                chr(196).chr(162) => 'G', chr(196).chr(163) => 'g',
                chr(196).chr(164) => 'H', chr(196).chr(165) => 'h',
                chr(196).chr(166) => 'H', chr(196).chr(167) => 'h',
                chr(196).chr(168) => 'I', chr(196).chr(169) => 'i',
                chr(196).chr(170) => 'I', chr(196).chr(171) => 'i',
                chr(196).chr(172) => 'I', chr(196).chr(173) => 'i',
                chr(196).chr(174) => 'I', chr(196).chr(175) => 'i',
                chr(196).chr(176) => 'I', chr(196).chr(177) => 'i',
                chr(196).chr(178) => 'IJ',chr(196).chr(179) => 'ij',
                chr(196).chr(180) => 'J', chr(196).chr(181) => 'j',
                chr(196).chr(182) => 'K', chr(196).chr(183) => 'k',
                chr(196).chr(184) => 'k', chr(196).chr(185) => 'L',
                chr(196).chr(186) => 'l', chr(196).chr(187) => 'L',
                chr(196).chr(188) => 'l', chr(196).chr(189) => 'L',
                chr(196).chr(190) => 'l', chr(196).chr(191) => 'L',
                chr(197).chr(128) => 'l', chr(197).chr(129) => 'L',
                chr(197).chr(130) => 'l', chr(197).chr(131) => 'N',
                chr(197).chr(132) => 'n', chr(197).chr(133) => 'N',
                chr(197).chr(134) => 'n', chr(197).chr(135) => 'N',
                chr(197).chr(136) => 'n', chr(197).chr(137) => 'N',
                chr(197).chr(138) => 'n', chr(197).chr(139) => 'N',
                chr(197).chr(140) => 'O', chr(197).chr(141) => 'o',
                chr(197).chr(142) => 'O', chr(197).chr(143) => 'o',
                chr(197).chr(144) => 'O', chr(197).chr(145) => 'o',
                chr(197).chr(146) => 'OE',chr(197).chr(147) => 'oe',
                chr(197).chr(148) => 'R', chr(197).chr(149) => 'r',
                chr(197).chr(150) => 'R', chr(197).chr(151) => 'r',
                chr(197).chr(152) => 'R', chr(197).chr(153) => 'r',
                chr(197).chr(154) => 'S', chr(197).chr(155) => 's',
                chr(197).chr(156) => 'S', chr(197).chr(157) => 's',
                chr(197).chr(158) => 'S', chr(197).chr(159) => 's',
                chr(197).chr(160) => 'S', chr(197).chr(161) => 's',
                chr(197).chr(162) => 'T', chr(197).chr(163) => 't',
                chr(197).chr(164) => 'T', chr(197).chr(165) => 't',
                chr(197).chr(166) => 'T', chr(197).chr(167) => 't',
                chr(197).chr(168) => 'U', chr(197).chr(169) => 'u',
                chr(197).chr(170) => 'U', chr(197).chr(171) => 'u',
                chr(197).chr(172) => 'U', chr(197).chr(173) => 'u',
                chr(197).chr(174) => 'U', chr(197).chr(175) => 'u',
                chr(197).chr(176) => 'U', chr(197).chr(177) => 'u',
                chr(197).chr(178) => 'U', chr(197).chr(179) => 'u',
                chr(197).chr(180) => 'W', chr(197).chr(181) => 'w',
                chr(197).chr(182) => 'Y', chr(197).chr(183) => 'y',
                chr(197).chr(184) => 'Y', chr(197).chr(185) => 'Z',
                chr(197).chr(186) => 'z', chr(197).chr(187) => 'Z',
                chr(197).chr(188) => 'z', chr(197).chr(189) => 'Z',
                chr(197).chr(190) => 'z', chr(197).chr(191) => 's',
                // Euro Sign
                chr(226).chr(130).chr(172) => 'E',
                // GBP (Pound) Sign
                chr(194).chr(163) => '',
                'Ä' => 'Ae', 'ä' => 'ae', 'Ü' => 'Ue', 'ü' => 'ue',
                'Ö' => 'Oe', 'ö' => 'oe', 'ß' => 'ss',
                // Norwegian characters
                'Å'=>'Aa','Æ'=>'Ae','Ø'=>'O','æ'=>'a','ø'=>'o','å'=>'aa'
            );

            $string = strtr($string, $chars);
        } else {
            // Assume ISO-8859-1 if not UTF-8
            $chars['in'] = chr(128).chr(131).chr(138).chr(142).chr(154).chr(158)
                .chr(159).chr(162).chr(165).chr(181).chr(192).chr(193).chr(194)
                .chr(195).chr(196).chr(197).chr(199).chr(200).chr(201).chr(202)
                .chr(203).chr(204).chr(205).chr(206).chr(207).chr(209).chr(210)
                .chr(211).chr(212).chr(213).chr(214).chr(216).chr(217).chr(218)
                .chr(219).chr(220).chr(221).chr(224).chr(225).chr(226).chr(227)
                .chr(228).chr(229).chr(231).chr(232).chr(233).chr(234).chr(235)
                .chr(236).chr(237).chr(238).chr(239).chr(241).chr(242).chr(243)
                .chr(244).chr(245).chr(246).chr(248).chr(249).chr(250).chr(251)
                .chr(252).chr(253).chr(255);

            $chars['out'] = "EfSZszYcYuAAAAAACEEEEIIIINOOOOOOUUUUYaaaaaaceeeeiiiinoooooouuuuyy";

            $string = strtr($string, $chars['in'], $chars['out']);
            $doubleChars['in'] = array(chr(140), chr(156), chr(198), chr(208), chr(222), chr(223), chr(230), chr(240), chr(254));
            $doubleChars['out'] = array('OE', 'oe', 'AE', 'DH', 'TH', 'ss', 'ae', 'dh', 'th');
            $string = str_replace($doubleChars['in'], $doubleChars['out'], $string);
        }

        return $string;
    }

    /**
     * Check if a string has utf7 characters in it
     *
     * By bmorel at ssi dot fr
     *
     * @param  string $string
     * @return boolean $bool
     */
    public static function seemsUtf8($string)
    {
        for ($i = 0; $i < strlen($string); $i++) {
            if (ord($string[$i]) < 0x80) {
                continue;   # 0bbbbbbb
            } elseif ((ord($string[$i]) & 0xE0) == 0xC0) {
                $n=1;       # 110bbbbb
            } elseif ((ord($string[$i]) & 0xF0) == 0xE0) {
                $n=2;       # 1110bbbb
            } elseif ((ord($string[$i]) & 0xF8) == 0xF0) {
                $n=3;       # 11110bbb
            } elseif ((ord($string[$i]) & 0xFC) == 0xF8) {
                $n=4;       # 111110bb
            } elseif ((ord($string[$i]) & 0xFE) == 0xFC) {
                $n=5;       # 1111110b
            } else {
                return false; # Does not match any model
            }

            for ($j = 0; $j < $n; $j++) {
                # n bytes matching 10bbbbbb follow ?
                if ((++$i == strlen($string)) || ((ord($string[$i]) & 0xC0) != 0x80)) {
                    return false;
                }
            }
        }
        return true;
    }

    /**
     * https://github.com/nette/nette/blob/master/Nette/Utils/Strings.php#L167
     * Converts to ASCII.
     * @param  string  UTF-8 encoding
     * @return string  ASCII
     */
    private static function toAscii($s)
    {
        $s = preg_replace('#[^\x09\x0A\x0D\x20-\x7E\xA0-\x{2FF}\x{370}-\x{10FFFF}]#u', '', $s);
        $s = strtr($s, '`\'"^~', "\x01\x02\x03\x04\x05");
        if (ICONV_IMPL === 'glibc') {
            $s = @iconv('UTF-8', 'WINDOWS-1250//TRANSLIT', $s); // intentionally @
            $s = strtr(
                $s,
                "\xa5\xa3\xbc\x8c\xa7\x8a\xaa\x8d\x8f\x8e\xaf\xb9\xb3\xbe\x9c\x9a\xba\x9d\x9f\x9e"
                . "\xbf\xc0\xc1\xc2\xc3\xc4\xc5\xc6\xc7\xc8\xc9\xca\xcb\xcc\xcd\xce\xcf\xd0\xd1\xd2\xd3"
                . "\xd4\xd5\xd6\xd7\xd8\xd9\xda\xdb\xdc\xdd\xde\xdf\xe0\xe1\xe2\xe3\xe4\xe5\xe6\xe7\xe8"
                . "\xe9\xea\xeb\xec\xed\xee\xef\xf0\xf1\xf2\xf3\xf4\xf5\xf6\xf8\xf9\xfa\xfb\xfc\xfd\xfe",
                "ALLSSSSTZZZallssstzzzRAAAALCCCEEEEIIDDNNOOOOxRUUUUYTsraaaalccceeeeiiddnnooooruuuuyt"
            );
        } else {
            $s = @iconv('UTF-8', 'ASCII//TRANSLIT', $s); // intentionally @
        }
        $s = str_replace(array('`', "'", '"', '^', '~'), '', $s);
        return strtr($s, "\x01\x02\x03\x04\x05", '`\'"^~');
    }

    /**
     * https://github.com/nette/nette/blob/master/Nette/Utils/Strings.php#L188
     * Converts to web safe characters [a-z0-9-] text.
     * @param  string  UTF-8 encoding
     * @param  string  allowed characters
     * @param  bool
     * @return string
     */
    public static function webalize($s, $charlist = null, $lower = true)
    {
        $s = self::toAscii($s);
        if ($lower) {
            $s = strtolower($s);
        }
        $s = preg_replace('#[^a-z0-9' . preg_quote($charlist, '#') . ']+#i', '_', $s);
        $s = trim($s, '_');
        return $s;
    }
}