I18N::htmlAttributes() - Code Metrics - Inspection of "Add borders to block contains in edit-blocks page" - fisharebest/webtrees - Measure and Improve Code Quality continuously with Scrutinizer

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Push — master ( 316db8...97e0d0 )

by Greg

created 2019-11-11 17:57 UTC

I18N::htmlAttributes() A

↳ Parent: I18N::init()

Complexity

Conditions	1
Paths	1

Size

Total Lines	3
Code Lines	1

Duplication

Lines	0
Ratio	0 %

Importance

Changes

Metric	Value
cc	1
eloc	1
nc	1
nop	0
dl	0
loc	3
rs	10
c	0
b	0
f	0

<?php

/**
 * webtrees: online genealogy
 * Copyright (C) 2019 webtrees development team
 * 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 3 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, see <http://www.gnu.org/licenses/>.
 */

declare(strict_types=1);

namespace Fisharebest\Webtrees;

use Collator;
use Exception;
use Fisharebest\Localization\Locale;
use Fisharebest\Localization\Locale\LocaleEnUs;
use Fisharebest\Localization\Locale\LocaleInterface;
use Fisharebest\Localization\Translation;
use Fisharebest\Localization\Translator;
use Fisharebest\Webtrees\Module\ModuleCustomInterface;
use Fisharebest\Webtrees\Module\ModuleLanguageInterface;
use Fisharebest\Webtrees\Services\ModuleService;
use Illuminate\Support\Collection;

use function array_merge;
use function class_exists;
use function html_entity_decode;
use function in_array;
use function mb_strtolower;
use function mb_strtoupper;
use function mb_substr;
use function ord;
use function sprintf;
use function str_replace;
use function strcmp;
use function strip_tags;
use function strlen;
use function strpos;
use function strtr;

/**
 * Internationalization (i18n) and localization (l10n).
 */
class I18N
{
    // MO files use special characters for plurals and context.
    public const PLURAL  = "\x00";
    public const CONTEXT = "\x04";
    private const DIGITS = '0123456789٠١٢٣٤٥٦٧٨٩۰۱۲۳۴۵۶۷۸۹';
    private const DOTLESS_I_LOCALES = [
        'az',
        'tr',
    ];
    private const DOTLESS_I_TOLOWER = [
        'I' => 'ı',
        'İ' => 'i',
    ];

    // Digits are always rendered LTR, even in RTL text.
    private const DOTLESS_I_TOUPPER = [
        'ı' => 'I',
        'i' => 'İ',
    ];

    // These locales need special handling for the dotless letter I.
    private const SCRIPT_CHARACTER_RANGES = [
        [
            'Latn',
            0x0041,
            0x005A,
        ],
        [
            'Latn',
            0x0061,
            0x007A,
        ],
        [
            'Latn',
            0x0100,
            0x02AF,
        ],
        [
            'Grek',
            0x0370,
            0x03FF,
        ],
        [
            'Cyrl',
            0x0400,
            0x052F,
        ],
        [
            'Hebr',
            0x0590,
            0x05FF,
        ],
        [
            'Arab',
            0x0600,
            0x06FF,
        ],
        [
            'Arab',
            0x0750,
            0x077F,
        ],
        [
            'Arab',
            0x08A0,
            0x08FF,
        ],
        [
            'Deva',
            0x0900,
            0x097F,
        ],
        [
            'Taml',
            0x0B80,
            0x0BFF,
        ],
        [
            'Sinh',
            0x0D80,
            0x0DFF,
        ],
        [
            'Thai',
            0x0E00,
            0x0E7F,
        ],
        [
            'Geor',
            0x10A0,
            0x10FF,
        ],
        [
            'Grek',
            0x1F00,
            0x1FFF,
        ],
        [
            'Deva',
            0xA8E0,
            0xA8FF,
        ],
        [
            'Hans',
            0x3000,
            0x303F,
        ],
        // Mixed CJK, not just Hans
        [
            'Hans',
            0x3400,
            0xFAFF,
        ],
        // Mixed CJK, not just Hans
        [
            'Hans',
            0x20000,
            0x2FA1F,
        ],
        // Mixed CJK, not just Hans
    ];
    private const MIRROR_CHARACTERS = [
        '('  => ')',
        ')'  => '(',
        '['  => ']',
        ']'  => '[',
        '{'  => '}',
        '}'  => '{',
        '<'  => '>',
        '>'  => '<',
        '‹ ' => '›',
        '› ' => '‹',
        '«'  => '»',
        '»'  => '«',
        '﴾ ' => '﴿',
        '﴿ ' => '﴾',
        '“ ' => '”',
        '” ' => '“',
        '‘ ' => '’',
        '’ ' => '‘',
    ];
    /** @var string Punctuation used to separate list items, typically a comma */
    public static $list_separator;

    // The ranges of characters used by each script.
    /** @var LocaleInterface The current locale (e.g. LocaleEnGb) */
    private static $locale;

    // Characters that are displayed in mirror form in RTL text.
    /** @var Translator An object that performs translation */
    private static $translator;
    /** @var  Collator|null From the php-intl library */
    private static $collator;

    /**
     * The preferred locales for this site, or a default list if no preference.
     *
     * @return LocaleInterface[]
     */
    public static function activeLocales(): array
    {
        /** @var Collection $locales */
        $locales = app(ModuleService::class)
            ->findByInterface(ModuleLanguageInterface::class, false, true)
            ->map(static function (ModuleLanguageInterface $module): LocaleInterface {
                return $module->locale();
            });

        if ($locales->isEmpty()) {
            return [new LocaleEnUs()];
        }

        return $locales->all();
    }

    /**
     * Which MySQL collation should be used for this locale?
     *
     * @return string
     */
    public static function collation(): string
    {
        $collation = self::$locale->collation();
        switch ($collation) {
            case 'croatian_ci':
            case 'german2_ci':
            case 'vietnamese_ci':
                // Only available in MySQL 5.6
                return 'utf8_unicode_ci';
            default:
                return 'utf8_' . $collation;
        }
    }

    /**
     * What format is used to display dates in the current locale?
     *
     * @return string
     */
    public static function dateFormat(): string
    {
        /* I18N: This is the format string for full dates. See http://php.net/date for codes */
        return self::$translator->translate('%j %F %Y');
    }

    /**
     * Convert the digits 0-9 into the local script
     * Used for years, etc., where we do not want thousands-separators, decimals, etc.
     *
     * @param string|int $n
     *
     * @return string
     */
    public static function digits($n): string
    {
        return self::$locale->digits((string) $n);
    }

    /**
     * What is the direction of the current locale
     *
     * @return string "ltr" or "rtl"
     */
    public static function direction(): string
    {
        return self::$locale->direction();
    }

    /**
     * Initialise the translation adapter with a locale setting.
     *
     * @param string $code
     * @param bool   $setup
     *
     * @return void
     */
    public static function init(string $code, bool $setup = false): void
    {
        self::$locale = Locale::create($code);

        // Load the translation file
        $translation_file = __DIR__ . '/../resources/lang/' . self::$locale->languageTag() . '/messages.php';

        try {
            $translation  = new Translation($translation_file);
            $translations = $translation->asArray();
        } catch (Exception $ex) {
            // The translations files are created during the build process, and are
            // not included in the source code.
            // Assuming we are using dev code, and build (or rebuild) the files.
            $po_file      = Webtrees::ROOT_DIR . 'resources/lang/' . self::$locale->languageTag() . '/messages.po';
            $translation  = new Translation($po_file);
            $translations = $translation->asArray();
            file_put_contents($translation_file, '<?php return ' . var_export($translations, true) . ';');
        }

        // Add translations from custom modules (but not during setup, as we have no database/modules)
        if (!$setup) {
            $translations = app(ModuleService::class)
                ->findByInterface(ModuleCustomInterface::class)
                ->reduce(static function (array $carry, ModuleCustomInterface $item): array {
                    return array_merge($carry, $item->customTranslations(self::$locale->languageTag()));
                }, $translations);
        }

        // Create a translator
        self::$translator = new Translator($translations, self::$locale->pluralRule());

        /* I18N: This punctuation is used to separate lists of items */
        self::$list_separator = self::translate(', ');

        // Create a collator
        try {
            if (class_exists('Collator')) {
                // Symfony provides a very incomplete polyfill - which cannot be used.
                self::$collator = new Collator(self::$locale->code());
                // Ignore upper/lower case differences
                self::$collator->setStrength(Collator::SECONDARY);
            }
        } catch (Exception $ex) {
            // PHP-INTL is not installed?  We'll use a fallback later.
            self::$collator = null;
        }
    }

    /**
     * Translate a string, and then substitute placeholders
     * echo I18N::translate('Hello World!');
     * echo I18N::translate('The %s sat on the mat', 'cat');
     *
     * @param string $message
     * @param string ...$args
     *
     * @return string
     */
    public static function translate(string $message, ...$args): string
    {
        $message = self::$translator->translate($message);

        return sprintf($message, ...$args);
    }

    /**
     * @return string
     */
    public static function languageTag(): string
    {
        return self::$locale->languageTag();
    }

    /**
     * @return LocaleInterface
     */
    public static function locale(): LocaleInterface
    {
        return self::$locale;
    }

    /**
     * Translate a number into the local representation.
     * e.g. 12345.67 becomes
     * en: 12,345.67
     * fr: 12 345,67
     * de: 12.345,67
     *
     * @param float $n
     * @param int   $precision
     *
     * @return string
     */
    public static function number(float $n, int $precision = 0): string
    {
        return self::$locale->number(round($n, $precision));
    }

    /**
     * Translate a fraction into a percentage.
     * e.g. 0.123 becomes
     * en: 12.3%
     * fr: 12,3 %
     * de: 12,3%
     *
     * @param float $n
     * @param int   $precision
     *
     * @return string
     */
    public static function percentage(float $n, int $precision = 0): string
    {
        return self::$locale->percent(round($n, $precision + 2));
    }

    /**
     * Translate a plural string
     * echo self::plural('There is an error', 'There are errors', $num_errors);
     * echo self::plural('There is one error', 'There are %s errors', $num_errors);
     * echo self::plural('There is %1$s %2$s cat', 'There are %1$s %2$s cats', $num, $num, $colour);
     *
     * @param string $singular
     * @param string $plural
     * @param int    $count
     * @param string ...$args
     *
     * @return string
     */
    public static function plural(string $singular, string $plural, int $count, ...$args): string
    {
        $message = self::$translator->translatePlural($singular, $plural, $count);

        return sprintf($message, ...$args);
    }

    /**
     * UTF8 version of PHP::strrev()
     * Reverse RTL text for third-party libraries such as GD2 and googlechart.
     * These do not support UTF8 text direction, so we must mimic it for them.
     * Numbers are always rendered LTR, even in RTL text.
     * The visual direction of characters such as parentheses should be reversed.
     *
     * @param string $text Text to be reversed
     *
     * @return string
     */
    public static function reverseText($text): string
    {
        // Remove HTML markup - we can't display it and it is LTR.
        $text = strip_tags($text);
        // Remove HTML entities.
        $text = html_entity_decode($text, ENT_QUOTES, 'UTF-8');

        // LTR text doesn't need reversing
        if (self::scriptDirection(self::textScript($text)) === 'ltr') {
            return $text;
        }

        // Mirrored characters
        $text = strtr($text, self::MIRROR_CHARACTERS);

        $reversed = '';
        $digits   = '';
        while ($text !== '') {
            $letter = mb_substr($text, 0, 1);
            $text   = mb_substr($text, 1);
            if (strpos(self::DIGITS, $letter) !== false) {
                $digits .= $letter;
            } else {
                $reversed = $letter . $digits . $reversed;
                $digits   = '';
            }
        }

        return $digits . $reversed;
    }

    /**
     * Return the direction (ltr or rtl) for a given script
     * The PHP/intl library does not provde this information, so we need
     * our own lookup table.
     *
     * @param string $script
     *
     * @return string
     */
    public static function scriptDirection($script): string
    {
        switch ($script) {
            case 'Arab':
            case 'Hebr':
            case 'Mong':
            case 'Thaa':
                return 'rtl';
            default:
                return 'ltr';
        }
    }

    /**
     * Identify the script used for a piece of text
     *
     * @param string $string
     *
     * @return string
     */
    public static function textScript($string): string
    {
        $string = strip_tags($string); // otherwise HTML tags show up as latin
        $string = html_entity_decode($string, ENT_QUOTES, 'UTF-8'); // otherwise HTML entities show up as latin
        $string = str_replace([
            '@N.N.',
            '@P.N.',
        ], '', $string); // otherwise unknown names show up as latin
        $pos    = 0;
        $strlen = strlen($string);
        while ($pos < $strlen) {
            // get the Unicode Code Point for the character at position $pos
            $byte1 = ord($string[$pos]);
            if ($byte1 < 0x80) {
                $code_point = $byte1;
                $chrlen     = 1;
            } elseif ($byte1 < 0xC0) {
                // Invalid continuation character
                return 'Latn';
            } elseif ($byte1 < 0xE0) {
                $code_point = (($byte1 & 0x1F) << 6) + (ord($string[$pos + 1]) & 0x3F);
                $chrlen     = 2;
            } elseif ($byte1 < 0xF0) {
                $code_point = (($byte1 & 0x0F) << 12) + ((ord($string[$pos + 1]) & 0x3F) << 6) + (ord($string[$pos + 2]) & 0x3F);
                $chrlen     = 3;
            } elseif ($byte1 < 0xF8) {
                $code_point = (($byte1 & 0x07) << 24) + ((ord($string[$pos + 1]) & 0x3F) << 12) + ((ord($string[$pos + 2]) & 0x3F) << 6) + (ord($string[$pos + 3]) & 0x3F);
                $chrlen     = 3;
            } else {
                // Invalid UTF
                return 'Latn';
            }

            foreach (self::SCRIPT_CHARACTER_RANGES as $range) {
                if ($code_point >= $range[1] && $code_point <= $range[2]) {
                    return $range[0];
                }
            }
            // Not a recognised script. Maybe punctuation, spacing, etc. Keep looking.
            $pos += $chrlen;
        }

        return 'Latn';
    }

    /**
     * Perform a case-insensitive comparison of two strings.
     *
     * @param string $string1
     * @param string $string2
     *
     * @return int
     */
    public static function strcasecmp($string1, $string2): int
    {
        if (self::$collator instanceof Collator) {
            return self::$collator->compare($string1, $string2);
        }

        return strcmp(self::strtolower($string1), self::strtolower($string2));
    }

    /**
     * Convert a string to lower case.
     *
     * @param string $string
     *
     * @return string
     */
    public static function strtolower($string): string
    {
        if (in_array(self::$locale->language()->code(), self::DOTLESS_I_LOCALES, true)) {
            $string = strtr($string, self::DOTLESS_I_TOLOWER);
        }

        return mb_strtolower($string);
    }

    /**
     * Convert a string to upper case.
     *
     * @param string $string
     *
     * @return string
     */
    public static function strtoupper($string): string
    {
        if (in_array(self::$locale->language()->code(), self::DOTLESS_I_LOCALES, true)) {
            $string = strtr($string, self::DOTLESS_I_TOUPPER);
        }

        return mb_strtoupper($string);
    }

    /**
     * What format is used to display dates in the current locale?
     *
     * @return string
     */
    public static function timeFormat(): string
    {
        /* I18N: This is the format string for the time-of-day. See http://php.net/date for codes */
        return self::$translator->translate('%H:%i:%s');
    }

    /**
     * Context sensitive version of translate.
     * echo I18N::translateContext('NOMINATIVE', 'January');
     * echo I18N::translateContext('GENITIVE', 'January');
     *
     * @param string $context
     * @param string $message
     * @param string ...$args
     *
     * @return string
     */
    public static function translateContext(string $context, string $message, ...$args): string
    {
        $message = self::$translator->translateContext($context, $message);

        return sprintf($message, ...$args);
    }
}


1			<?php
2
3			/**
4			* webtrees: online genealogy
5			* Copyright (C) 2019 webtrees development team
6			* This program is free software: you can redistribute it and/or modify
7			* it under the terms of the GNU General Public License as published by
8			* the Free Software Foundation, either version 3 of the License, or
9			* (at your option) any later version.
10			* This program is distributed in the hope that it will be useful,
11			* but WITHOUT ANY WARRANTY; without even the implied warranty of
12			* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13			* GNU General Public License for more details.
14			* You should have received a copy of the GNU General Public License
15			* along with this program. If not, see <http://www.gnu.org/licenses/>.
16			*/
17
18			declare(strict_types=1);
19
20			namespace Fisharebest\Webtrees;
21
22			use Collator;
23			use Exception;
24			use Fisharebest\Localization\Locale;
25			use Fisharebest\Localization\Locale\LocaleEnUs;
26			use Fisharebest\Localization\Locale\LocaleInterface;
27			use Fisharebest\Localization\Translation;
28			use Fisharebest\Localization\Translator;
29			use Fisharebest\Webtrees\Module\ModuleCustomInterface;
30			use Fisharebest\Webtrees\Module\ModuleLanguageInterface;
31			use Fisharebest\Webtrees\Services\ModuleService;
32			use Illuminate\Support\Collection;
33
34			use function array_merge;
35			use function class_exists;
36			use function html_entity_decode;
37			use function in_array;
38			use function mb_strtolower;
39			use function mb_strtoupper;
40			use function mb_substr;
41			use function ord;
42			use function sprintf;
43			use function str_replace;
44			use function strcmp;
45			use function strip_tags;
46			use function strlen;
47			use function strpos;
48			use function strtr;
49
50			/**
51			* Internationalization (i18n) and localization (l10n).
52			*/
53			class I18N
54			{
55			// MO files use special characters for plurals and context.
56			public const PLURAL = "\x00";
57			public const CONTEXT = "\x04";
58			private const DIGITS = '0123456789٠١٢٣٤٥٦٧٨٩۰۱۲۳۴۵۶۷۸۹';
59			private const DOTLESS_I_LOCALES = [
60			'az',
61			'tr',
62			];
63			private const DOTLESS_I_TOLOWER = [
64			'I' => 'ı',
65			'İ' => 'i',
66			];
67
68			// Digits are always rendered LTR, even in RTL text.
69			private const DOTLESS_I_TOUPPER = [
70			'ı' => 'I',
71			'i' => 'İ',
72			];
73
74			// These locales need special handling for the dotless letter I.
75			private const SCRIPT_CHARACTER_RANGES = [
76			[
77			'Latn',
78			0x0041,
79			0x005A,
80			],
81			[
82			'Latn',
83			0x0061,
84			0x007A,
85			],
86			[
87			'Latn',
88			0x0100,
89			0x02AF,
90			],
91			[
92			'Grek',
93			0x0370,
94			0x03FF,
95			],
96			[
97			'Cyrl',
98			0x0400,
99			0x052F,
100			],
101			[
102			'Hebr',
103			0x0590,
104			0x05FF,
105			],
106			[
107			'Arab',
108			0x0600,
109			0x06FF,
110			],
111			[
112			'Arab',
113			0x0750,
114			0x077F,
115			],
116			[
117			'Arab',
118			0x08A0,
119			0x08FF,
120			],
121			[
122			'Deva',
123			0x0900,
124			0x097F,
125			],
126			[
127			'Taml',
128			0x0B80,
129			0x0BFF,
130			],
131			[
132			'Sinh',
133			0x0D80,
134			0x0DFF,
135			],
136			[
137			'Thai',
138			0x0E00,
139			0x0E7F,
140			],
141			[
142			'Geor',
143			0x10A0,
144			0x10FF,
145			],
146			[
147			'Grek',
148			0x1F00,
149			0x1FFF,
150			],
151			[
152			'Deva',
153			0xA8E0,
154			0xA8FF,
155			],
156			[
157			'Hans',
158			0x3000,
159			0x303F,
160			],
161			// Mixed CJK, not just Hans
162			[
163			'Hans',
164			0x3400,
165			0xFAFF,
166			],
167			// Mixed CJK, not just Hans
168			[
169			'Hans',
170			0x20000,
171			0x2FA1F,
172			],
173			// Mixed CJK, not just Hans
174			];
175			private const MIRROR_CHARACTERS = [
176			'(' => ')',
177			')' => '(',
178			'[' => ']',
179			']' => '[',
180			'{' => '}',
181			'}' => '{',
182			'<' => '>',
183			'>' => '<',
184			'‹ ' => '›',
185			'› ' => '‹',
186			'«' => '»',
187			'»' => '«',
188			'﴾ ' => '﴿',
189			'﴿ ' => '﴾',
190			'“ ' => '”',
191			'” ' => '“',
192			'‘ ' => '’',
193			'’ ' => '‘',
194			];
195			/** @var string Punctuation used to separate list items, typically a comma */
196			public static $list_separator;
197
198			// The ranges of characters used by each script.
199			/** @var LocaleInterface The current locale (e.g. LocaleEnGb) */
200			private static $locale;
201
202			// Characters that are displayed in mirror form in RTL text.
203			/** @var Translator An object that performs translation */
204			private static $translator;
205			/** @var Collator\|null From the php-intl library */
206			private static $collator;
207
208			/**
209			* The preferred locales for this site, or a default list if no preference.
210			*
211			* @return LocaleInterface[]
212			*/
213			public static function activeLocales(): array
214			{
215			/** @var Collection $locales */
216			$locales = app(ModuleService::class)
217			->findByInterface(ModuleLanguageInterface::class, false, true)
218			->map(static function (ModuleLanguageInterface $module): LocaleInterface {
219			return $module->locale();
220			});
221
222			if ($locales->isEmpty()) {
223			return [new LocaleEnUs()];
224			}
225
226			return $locales->all();
227			}
228
229			/**
230			* Which MySQL collation should be used for this locale?
231			*
232			* @return string
233			*/
234			public static function collation(): string
235			{
236			$collation = self::$locale->collation();
237			switch ($collation) {
238			case 'croatian_ci':
239			case 'german2_ci':
240			case 'vietnamese_ci':
241			// Only available in MySQL 5.6
242			return 'utf8_unicode_ci';
243			default:
244			return 'utf8_' . $collation;
245			}
246			}
247
248			/**
249			* What format is used to display dates in the current locale?
250			*
251			* @return string
252			*/
253			public static function dateFormat(): string
254			{
255			/* I18N: This is the format string for full dates. See http://php.net/date for codes */
256			return self::$translator->translate('%j %F %Y');
257			}
258
259			/**
260			* Convert the digits 0-9 into the local script
261			* Used for years, etc., where we do not want thousands-separators, decimals, etc.
262			*
263			* @param string\|int $n
264			*
265			* @return string
266			*/
267			public static function digits($n): string
268			{
269			return self::$locale->digits((string) $n);
270			}
271
272			/**
273			* What is the direction of the current locale
274			*
275			* @return string "ltr" or "rtl"
276			*/
277			public static function direction(): string
278			{
279			return self::$locale->direction();
280			}
281
282			/**
283			* Initialise the translation adapter with a locale setting.
284			*
285			* @param string $code
286			* @param bool $setup
287			*
288			* @return void
289			*/
290			public static function init(string $code, bool $setup = false): void
291			{
292			self::$locale = Locale::create($code);
293
294			// Load the translation file
295			$translation_file = __DIR__ . '/../resources/lang/' . self::$locale->languageTag() . '/messages.php';
296
297			try {
298			$translation = new Translation($translation_file);
299			$translations = $translation->asArray();
300			} catch (Exception $ex) {
301			// The translations files are created during the build process, and are
302			// not included in the source code.
303			// Assuming we are using dev code, and build (or rebuild) the files.
304			$po_file = Webtrees::ROOT_DIR . 'resources/lang/' . self::$locale->languageTag() . '/messages.po';
305			$translation = new Translation($po_file);
306			$translations = $translation->asArray();
307			file_put_contents($translation_file, '<?php return ' . var_export($translations, true) . ';');
308			}
309
310			// Add translations from custom modules (but not during setup, as we have no database/modules)
311			if (!$setup) {
312			$translations = app(ModuleService::class)
313			->findByInterface(ModuleCustomInterface::class)
314			->reduce(static function (array $carry, ModuleCustomInterface $item): array {
315			return array_merge($carry, $item->customTranslations(self::$locale->languageTag()));
316			}, $translations);
317			}
318
319			// Create a translator
320			self::$translator = new Translator($translations, self::$locale->pluralRule());
321
322			/* I18N: This punctuation is used to separate lists of items */
323			self::$list_separator = self::translate(', ');
324
325			// Create a collator
326			try {
327			if (class_exists('Collator')) {
328			// Symfony provides a very incomplete polyfill - which cannot be used.
329			self::$collator = new Collator(self::$locale->code());
330			// Ignore upper/lower case differences
331			self::$collator->setStrength(Collator::SECONDARY);
332			}
333			} catch (Exception $ex) {
334			// PHP-INTL is not installed? We'll use a fallback later.
335			self::$collator = null;
336			}
337			}
338
339			/**
340			* Translate a string, and then substitute placeholders
341			* echo I18N::translate('Hello World!');
342			* echo I18N::translate('The %s sat on the mat', 'cat');
343			*
344			* @param string $message
345			* @param string ...$args
346			*
347			* @return string
348			*/
349			public static function translate(string $message, ...$args): string
350			{
351			$message = self::$translator->translate($message);
352
353			return sprintf($message, ...$args);
354			}
355
356			/**
357			* @return string
358			*/
359			public static function languageTag(): string
360			{
361			return self::$locale->languageTag();
362			}
363
364			/**
365			* @return LocaleInterface
366			*/
367			public static function locale(): LocaleInterface
368			{
369			return self::$locale;
370			}
371
372			/**
373			* Translate a number into the local representation.
374			* e.g. 12345.67 becomes
375			* en: 12,345.67
376			* fr: 12 345,67
377			* de: 12.345,67
378			*
379			* @param float $n
380			* @param int $precision
381			*
382			* @return string
383			*/
384			public static function number(float $n, int $precision = 0): string
385			{
386			return self::$locale->number(round($n, $precision));
387			}
388
389			/**
390			* Translate a fraction into a percentage.
391			* e.g. 0.123 becomes
392			* en: 12.3%
393			* fr: 12,3 %
394			* de: 12,3%
395			*
396			* @param float $n
397			* @param int $precision
398			*
399			* @return string
400			*/
401			public static function percentage(float $n, int $precision = 0): string
402			{
403			return self::$locale->percent(round($n, $precision + 2));
404			}
405
406			/**
407			* Translate a plural string
408			* echo self::plural('There is an error', 'There are errors', $num_errors);
409			* echo self::plural('There is one error', 'There are %s errors', $num_errors);
410			* echo self::plural('There is %1$s %2$s cat', 'There are %1$s %2$s cats', $num, $num, $colour);
411			*
412			* @param string $singular
413			* @param string $plural
414			* @param int $count
415			* @param string ...$args
416			*
417			* @return string
418			*/
419			public static function plural(string $singular, string $plural, int $count, ...$args): string
420			{
421			$message = self::$translator->translatePlural($singular, $plural, $count);
422
423			return sprintf($message, ...$args);
424			}
425
426			/**
427			* UTF8 version of PHP::strrev()
428			* Reverse RTL text for third-party libraries such as GD2 and googlechart.
429			* These do not support UTF8 text direction, so we must mimic it for them.
430			* Numbers are always rendered LTR, even in RTL text.
431			* The visual direction of characters such as parentheses should be reversed.
432			*
433			* @param string $text Text to be reversed
434			*
435			* @return string
436			*/
437			public static function reverseText($text): string
438			{
439			// Remove HTML markup - we can't display it and it is LTR.
440			$text = strip_tags($text);
441			// Remove HTML entities.
442			$text = html_entity_decode($text, ENT_QUOTES, 'UTF-8');
443
444			// LTR text doesn't need reversing
445			if (self::scriptDirection(self::textScript($text)) === 'ltr') {
446			return $text;
447			}
448
449			// Mirrored characters
450			$text = strtr($text, self::MIRROR_CHARACTERS);
451
452			$reversed = '';
453			$digits = '';
454			while ($text !== '') {
455			$letter = mb_substr($text, 0, 1);
456			$text = mb_substr($text, 1);
457			if (strpos(self::DIGITS, $letter) !== false) {
458			$digits .= $letter;
459			} else {
460			$reversed = $letter . $digits . $reversed;
461			$digits = '';
462			}
463			}
464
465			return $digits . $reversed;
466			}
467
468			/**
469			* Return the direction (ltr or rtl) for a given script
470			* The PHP/intl library does not provde this information, so we need
471			* our own lookup table.
472			*
473			* @param string $script
474			*
475			* @return string
476			*/
477			public static function scriptDirection($script): string
478			{
479			switch ($script) {
480			case 'Arab':
481			case 'Hebr':
482			case 'Mong':
483			case 'Thaa':
484			return 'rtl';
485			default:
486			return 'ltr';
487			}
488			}
489
490			/**
491			* Identify the script used for a piece of text
492			*
493			* @param string $string
494			*
495			* @return string
496			*/
497			public static function textScript($string): string
498			{
499			$string = strip_tags($string); // otherwise HTML tags show up as latin
500			$string = html_entity_decode($string, ENT_QUOTES, 'UTF-8'); // otherwise HTML entities show up as latin
501			$string = str_replace([
502			'@N.N.',
503			'@P.N.',
504			], '', $string); // otherwise unknown names show up as latin
505			$pos = 0;
506			$strlen = strlen($string);
507			while ($pos < $strlen) {
508			// get the Unicode Code Point for the character at position $pos
509			$byte1 = ord($string[$pos]);
510			if ($byte1 < 0x80) {
511			$code_point = $byte1;
512			$chrlen = 1;
513			} elseif ($byte1 < 0xC0) {
514			// Invalid continuation character
515			return 'Latn';
516			} elseif ($byte1 < 0xE0) {
517			$code_point = (($byte1 & 0x1F) << 6) + (ord($string[$pos + 1]) & 0x3F);
518			$chrlen = 2;
519			} elseif ($byte1 < 0xF0) {
520			$code_point = (($byte1 & 0x0F) << 12) + ((ord($string[$pos + 1]) & 0x3F) << 6) + (ord($string[$pos + 2]) & 0x3F);
521			$chrlen = 3;
522			} elseif ($byte1 < 0xF8) {
523			$code_point = (($byte1 & 0x07) << 24) + ((ord($string[$pos + 1]) & 0x3F) << 12) + ((ord($string[$pos + 2]) & 0x3F) << 6) + (ord($string[$pos + 3]) & 0x3F);
524			$chrlen = 3;
525			} else {
526			// Invalid UTF
527			return 'Latn';
528			}
529
530			foreach (self::SCRIPT_CHARACTER_RANGES as $range) {
531			if ($code_point >= $range[1] && $code_point <= $range[2]) {
532			return $range[0];
533			}
534			}
535			// Not a recognised script. Maybe punctuation, spacing, etc. Keep looking.
536			$pos += $chrlen;
537			}
538
539			return 'Latn';
540			}
541
542			/**
543			* Perform a case-insensitive comparison of two strings.
544			*
545			* @param string $string1
546			* @param string $string2
547			*
548			* @return int
549			*/
550			public static function strcasecmp($string1, $string2): int
551			{
552			if (self::$collator instanceof Collator) {
553			return self::$collator->compare($string1, $string2);
554			}
555
556			return strcmp(self::strtolower($string1), self::strtolower($string2));
557			}
558
559			/**
560			* Convert a string to lower case.
561			*
562			* @param string $string
563			*
564			* @return string
565			*/
566			public static function strtolower($string): string
567			{
568			if (in_array(self::$locale->language()->code(), self::DOTLESS_I_LOCALES, true)) {
569			$string = strtr($string, self::DOTLESS_I_TOLOWER);
570			}
571
572			return mb_strtolower($string);
573			}
574
575			/**
576			* Convert a string to upper case.
577			*
578			* @param string $string
579			*
580			* @return string
581			*/
582			public static function strtoupper($string): string
583			{
584			if (in_array(self::$locale->language()->code(), self::DOTLESS_I_LOCALES, true)) {
585			$string = strtr($string, self::DOTLESS_I_TOUPPER);
586			}
587
588			return mb_strtoupper($string);
589			}
590
591			/**
592			* What format is used to display dates in the current locale?
593			*
594			* @return string
595			*/
596			public static function timeFormat(): string
597			{
598			/* I18N: This is the format string for the time-of-day. See http://php.net/date for codes */
599			return self::$translator->translate('%H:%i:%s');
600			}
601
602			/**
603			* Context sensitive version of translate.
604			* echo I18N::translateContext('NOMINATIVE', 'January');
605			* echo I18N::translateContext('GENITIVE', 'January');
606			*
607			* @param string $context
608			* @param string $message
609			* @param string ...$args
610			*
611			* @return string
612			*/
613			public static function translateContext(string $context, string $message, ...$args): string
614			{
615			$message = self::$translator->translateContext($context, $message);
616
617			return sprintf($message, ...$args);
618			}
619			}
620

fisharebest / webtrees

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