Locale::withScript() - Code Metrics - Inspection of "Cleanup" - yiisoft/i18n - Measure and Improve Code Quality continuously with Scrutinizer

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by Alexander

created 2020-12-25 23:18 UTC

Locale::withScript() A

↳ Parent: Locale

Complexity

Conditions	1
Paths	1

Size

Total Lines	5
Code Lines	3

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	4
CRAP Score	1

Importance

Changes

Metric	Value
cc	1
eloc	3
nc	1
nop	1
dl	0
loc	5
ccs	4
cts	4
cp	1
crap	1
rs	10
c	0
b	0
f	0

<?php

declare(strict_types=1);

namespace Yiisoft\I18n;

use InvalidArgumentException;

/**
 * Locale stores locale information created from BCP 47 formatted string.
 *
 * @see https://tools.ietf.org/html/bcp47
 */
final class Locale
{
    /**
     * @var string|null Two-letter ISO-639-2 language code.
     *
     * @see http://www.loc.gov/standards/iso639-2/
     */
    private ?string $language = null;

    /**
     * @var string|null Extended language subtags.
     */
    private ?string $extendedLanguage = null;

    /**
     * @var string|null
     */
    private ?string $extension = null;

    /**
     * @var string|null Four-letter ISO 15924 script code.
     *
     * @see http://www.unicode.org/iso15924/iso15924-codes.html
     */
    private ?string $script = null;

    /**
     * @var string|null Two-letter ISO 3166-1 country code.
     *
     * @see https://www.iso.org/iso-3166-country-codes.html
     */
    private ?string $region = null;

    /**
     * @var string|null variant of language conventions to use.
     */
    private ?string $variant = null;

    /**
     * @var string|null ICU currency.
     */
    private ?string $currency = null;

    /**
     * @var string|null ICU calendar.
     */
    private ?string $calendar = null;

    /**
     * @var string|null ICU collation.
     */
    private ?string $collation = null;

    /**
     * @var string|null ICU numbers.
     */
    private ?string $numbers = null;

    /**
     * @var string|null
     */
    private ?string $grandfathered = null;

    /**
     * @var string|null
     */
    private ?string $private = null;

    /**
     * Locale constructor.
     *
     * @param string $localeString BCP 47 formatted locale string.
     *
     * @see https://tools.ietf.org/html/bcp47
     *
     * @throws InvalidArgumentException
     */
    public function __construct(string $localeString)
    {
        if (!preg_match(self::getBCP47Regex(), $localeString, $matches)) {
            throw new InvalidArgumentException($localeString . ' is not valid BCP 47 formatted locale string.');
        }

        if (!empty($matches['language'])) {
            $this->language = strtolower($matches['language']);
        }

        if (!empty($matches['region'])) {
            $this->region = strtoupper($matches['region']);
        }

        if (!empty($matches['variant'])) {
            $this->variant = $matches['variant'];
        }

        if (!empty($matches['extendedLanguage'])) {
            $this->extendedLanguage = $matches['extendedLanguage'];
        }

        if (!empty($matches['extension'])) {
            $this->extension = $matches['extension'];
        }

        if (!empty($matches['script'])) {
            $this->script = ucfirst(strtolower($matches['script']));
        }

        if (!empty($matches['grandfathered'])) {
            $this->grandfathered = $matches['grandfathered'];
        }

        if (!empty($matches['private'])) {
            $this->private = preg_replace('~^x-~', '', $matches['private']);
        }

        if (!empty($matches['keywords'])) {
            foreach (explode(';', $matches['keywords']) as $pair) {
                [$key, $value] = explode('=', $pair);

                if ($key === 'calendar') {
                    $this->calendar = $value;
                }

                if ($key === 'collation') {
                    $this->collation = $value;
                }

                if ($key === 'currency') {
                    $this->currency = $value;
                }

                if ($key === 'numbers') {
                    $this->numbers = $value;
                }
            }
        }
    }

    /**
     * @return string Four-letter ISO 15924 script code.
     *
     * @see http://www.unicode.org/iso15924/iso15924-codes.html
     */
    public function script(): ?string
    {
        return $this->script;
    }

    /**
     * @param string|null $script Four-letter ISO 15924 script code.
     *
     * @see http://www.unicode.org/iso15924/iso15924-codes.html
     *
     * @return self
     */
    public function withScript(?string $script): self
    {
        $new = clone $this;
        $new->script = $script;
        return $new;
    }

    /**
     * @return string Variant of language conventions to use.
     */
    public function variant(): ?string
    {
        return $this->variant;
    }

    /**
     * @param string|null $variant Variant of language conventions to use.
     *
     * @return self
     */
    public function withVariant(?string $variant): self
    {
        $new = clone $this;
        $new->variant = $variant;
        return $new;
    }

    /**
     * @return string|null Two-letter ISO-639-2 language code.
     *
     * @see http://www.loc.gov/standards/iso639-2/
     */
    public function language(): ?string
    {
        return $this->language;
    }

    /**
     * @param string|null $language Two-letter ISO-639-2 language code.
     *
     * @see http://www.loc.gov/standards/iso639-2/
     *
     * @return self
     */
    public function withLanguage(?string $language): self
    {
        $new = clone $this;
        $new->language = $language;
        return $new;
    }

    /**
     * @return string|null ICU calendar.
     */
    public function calendar(): ?string
    {
        return $this->calendar;
    }

    /**
     * @param string|null $calendar ICU calendar.
     *
     * @return self
     */
    public function withCalendar(?string $calendar): self
    {
        $new = clone $this;
        $new->calendar = $calendar;
        return $new;
    }

    /**
     * @return string|null ICU collation.
     */
    public function collation(): ?string
    {
        return $this->collation;
    }

    /**
     * @param string|null $collation ICU collation.
     *
     * @return self
     */
    public function withCollation(?string $collation): self
    {
        $new = clone $this;
        $new->collation = $collation;
        return $new;
    }

    /**
     * @return string|null ICU numbers.
     */
    public function numbers(): ?string
    {
        return $this->numbers;
    }

    /**
     * @param string|null $numbers ICU numbers.
     *
     * @return self
     */
    public function withNumbers(?string $numbers): self
    {
        $new = clone $this;
        $new->numbers = $numbers;
        return $new;
    }

    /**
     * @return string Two-letter ISO 3166-1 country code.
     *
     * @see https://www.iso.org/iso-3166-country-codes.html
     */
    public function region(): ?string
    {
        return $this->region;
    }

    /**
     * @param string|null $region Two-letter ISO 3166-1 country code.
     *
     * @see https://www.iso.org/iso-3166-country-codes.html
     *
     * @return self
     */
    public function withRegion(?string $region): self
    {
        $new = clone $this;
        $new->region = $region;
        return $new;
    }

    /**
     * @return string ICU currency.
     */
    public function currency(): ?string
    {
        return $this->currency;
    }

    /**
     * @param string|null $currency ICU currency.
     *
     * @return self
     */
    public function withCurrency(?string $currency): self
    {
        $new = clone $this;
        $new->currency = $currency;

        return $new;
    }

    /**
     * @return string|null Extended language subtags.
     */
    public function extendedLanguage(): ?string
    {
        return $this->extendedLanguage;
    }

    /**
     * @param string|null $extendedLanguage Extended language subtags.
     *
     * @return self
     */
    public function withExtendedLanguage(?string $extendedLanguage): self
    {
        $new = clone $this;
        $new->extendedLanguage = $extendedLanguage;

        return $new;
    }

    /**
     * @return string|null
     */
    public function private(): ?string
    {
        return $this->private;
    }

    /**
     * @param string|null $private
     *
     * @return self
     */
    public function withPrivate(?string $private): self
    {
        $new = clone $this;
        $new->private = $private;

        return $new;
    }

    /**
     * @return string Regular expression for parsing BCP 47.
     *
     * @see https://tools.ietf.org/html/bcp47
     */
    private static function getBCP47Regex(): string
    {
        $regular = '(?:art-lojban|cel-gaulish|no-bok|no-nyn|zh-guoyu|zh-hakka|zh-min|zh-min-nan|zh-xiang)';
        $irregular = '(?:en-GB-oed|i-ami|i-bnn|i-default|i-enochian|i-hak|i-klingon|i-lux|i-mingo|i-navajo|i-pwn|i-tao|i-tay|i-tsu|sgn-BE-FR|sgn-BE-NL|sgn-CH-DE)';
        $grandfathered = '(?<grandfathered>' . $irregular . '|' . $regular . ')';
        $private = '(?<private>x(?:-[A-Za-z0-9]{1,8})+)';
        $singleton = '[0-9A-WY-Za-wy-z]';
        $extension = '(?<extension>' . $singleton . '(?:-[A-Za-z0-9]{2,8})+)';
        $variant = '(?<variant>[A-Za-z0-9]{5,8}|[0-9][A-Za-z0-9]{3})';
        $region = '(?<region>[A-Za-z]{2}|[0-9]{3})';
        $script = '(?<script>[A-Za-z]{4})';
        $extendedLanguage = '(?<extendedLanguage>[A-Za-z]{3}(?:-[A-Za-z]{3}){0,2})';
        $language = '(?<language>[A-Za-z]{4,8})|(?<language>[A-Za-z]{2,3})(?:-' . $extendedLanguage . ')?';
        $icuKeywords = '(?:@(?<keywords>.*?))?';
        $languageTag = '(?:' . $language . '(?:-' . $script . ')?' . '(?:-' . $region . ')?' . '(?:-' . $variant . ')*' . '(?:-' . $extension . ')*' . '(?:-' . $private . ')?' . ')';
        return '/^(?J:' . $grandfathered . '|' . $languageTag . '|' . $private . ')' . $icuKeywords . '$/';
    }

    public function __toString(): string
    {
        return $this->asString();
    }

    /**
     * @return string Locale string.
     */
    public function asString(): string
    {
        if ($this->grandfathered !== null) {
            return $this->grandfathered;
        }

        $result = [];
        if ($this->language !== null) {
            $result[] = $this->language;

            if ($this->extendedLanguage !== null) {
                $result[] = $this->extendedLanguage;
            }

            if ($this->script !== null) {
                $result[] = $this->script;
            }

            if ($this->region !== null) {
                $result[] = $this->region;
            }

            if ($this->variant !== null) {
                $result[] = $this->variant;
            }

            if ($this->extension !== null) {
                $result[] = $this->extension;
            }
        }

        if ($this->private !== null) {
            $result[] = 'x-' . $this->private;
        }

        $keywords = [];
        if ($this->currency !== null) {
            $keywords[] = 'currency=' . $this->currency;
        }
        if ($this->collation !== null) {
            $keywords[] = 'collation=' . $this->collation;
        }
        if ($this->calendar !== null) {
            $keywords[] = 'calendar=' . $this->calendar;
        }
        if ($this->numbers !== null) {
            $keywords[] = 'numbers=' . $this->numbers;
        }

        $string = implode('-', $result);

        if ($keywords !== []) {
            $string .= '@' . implode(';', $keywords);
        }

        return $string;
    }

    /**
     * Returns fallback locale.
     *
     * @return self Fallback locale.
     */
    public function fallbackLocale(): self
    {
        $fallback = $this
            ->withCalendar(null)
            ->withCollation(null)
            ->withCurrency(null)
            ->withExtendedLanguage(null)
            ->withNumbers(null)
            ->withPrivate(null);

        if ($fallback->variant() !== null) {
            return $fallback->withVariant(null);
        }

        if ($fallback->region() !== null) {
            return $fallback->withRegion(null);
        }

        if ($fallback->script() !== null) {
            return $fallback->withScript(null);
        }

        return $fallback;
    }
}


1		<?php
2
3		declare(strict_types=1);
4
5		namespace Yiisoft\I18n;
6
7		use InvalidArgumentException;
8
9		/**
10		* Locale stores locale information created from BCP 47 formatted string.
11		*
12		* @see https://tools.ietf.org/html/bcp47
13		*/
14		final class Locale
15		{
16		/**
17		* @var string\|null Two-letter ISO-639-2 language code.
18		*
19		* @see http://www.loc.gov/standards/iso639-2/
20		*/
21		private ?string $language = null;
22
23		/**
24		* @var string\|null Extended language subtags.
25		*/
26		private ?string $extendedLanguage = null;
27
28		/**
29		* @var string\|null
30		*/
31		private ?string $extension = null;
32
33		/**
34		* @var string\|null Four-letter ISO 15924 script code.
35		*
36		* @see http://www.unicode.org/iso15924/iso15924-codes.html
37		*/
38		private ?string $script = null;
39
40		/**
41		* @var string\|null Two-letter ISO 3166-1 country code.
42		*
43		* @see https://www.iso.org/iso-3166-country-codes.html
44		*/
45		private ?string $region = null;
46
47		/**
48		* @var string\|null variant of language conventions to use.
49		*/
50		private ?string $variant = null;
51
52		/**
53		* @var string\|null ICU currency.
54		*/
55		private ?string $currency = null;
56
57		/**
58		* @var string\|null ICU calendar.
59		*/
60		private ?string $calendar = null;
61
62		/**
63		* @var string\|null ICU collation.
64		*/
65		private ?string $collation = null;
66
67		/**
68		* @var string\|null ICU numbers.
69		*/
70		private ?string $numbers = null;
71
72		/**
73		* @var string\|null
74		*/
75		private ?string $grandfathered = null;
76
77		/**
78		* @var string\|null
79		*/
80		private ?string $private = null;
81
82		/**
83		* Locale constructor.
84		*
85		* @param string $localeString BCP 47 formatted locale string.
86		*
87		* @see https://tools.ietf.org/html/bcp47
88		*
89		* @throws InvalidArgumentException
90		*/
91	28	public function __construct(string $localeString)
92		{
93	28	if (!preg_match(self::getBCP47Regex(), $localeString, $matches)) {
94	1	throw new InvalidArgumentException($localeString . ' is not valid BCP 47 formatted locale string.');
95		}
96
97	27	if (!empty($matches['language'])) {
98	26	$this->language = strtolower($matches['language']);
99		}
100
101	27	if (!empty($matches['region'])) {
102	16	$this->region = strtoupper($matches['region']);
103		}
104
105	27	if (!empty($matches['variant'])) {
106	5	$this->variant = $matches['variant'];
107		}
108
109	27	if (!empty($matches['extendedLanguage'])) {
110	2	$this->extendedLanguage = $matches['extendedLanguage'];
111		}
112
113	27	if (!empty($matches['extension'])) {
114	1	$this->extension = $matches['extension'];
115		}
116
117	27	if (!empty($matches['script'])) {
118	5	$this->script = ucfirst(strtolower($matches['script']));
119		}
120
121	27	if (!empty($matches['grandfathered'])) {
122	1	$this->grandfathered = $matches['grandfathered'];
123		}
124
125	27	if (!empty($matches['private'])) {
126	5	$this->private = preg_replace('~^x-~', '', $matches['private']);
127		}
128
129	27	if (!empty($matches['keywords'])) {
130	5	foreach (explode(';', $matches['keywords']) as $pair) {
131	5	[$key, $value] = explode('=', $pair);
132
133	5	if ($key === 'calendar') {
134	2	$this->calendar = $value;
135		}
136
137	5	if ($key === 'collation') {
138	2	$this->collation = $value;
139		}
140
141	5	if ($key === 'currency') {
142	2	$this->currency = $value;
143		}
144
145	5	if ($key === 'numbers') {
146	2	$this->numbers = $value;
147		}
148		}
149		}
150	27	}
151
152		/**
153		* @return string Four-letter ISO 15924 script code.
154		*
155		* @see http://www.unicode.org/iso15924/iso15924-codes.html
156		*/
157	5	public function script(): ?string
158		{
159	5	return $this->script;
160		}
161
162		/**
163		* @param string\|null $script Four-letter ISO 15924 script code.
164		*
165		* @see http://www.unicode.org/iso15924/iso15924-codes.html
166		*
167		* @return self
168		*/
169	2	public function withScript(?string $script): self
170		{
171	2	$new = clone $this;
172	2	$new->script = $script;
173	2	return $new;
174		}
175
176		/**
177		* @return string Variant of language conventions to use.
178		*/
179	4	public function variant(): ?string
180		{
181	4	return $this->variant;
182		}
183
184		/**
185		* @param string\|null $variant Variant of language conventions to use.
186		*
187		* @return self
188		*/
189	2	public function withVariant(?string $variant): self
190		{
191	2	$new = clone $this;
192	2	$new->variant = $variant;
193	2	return $new;
194		}
195
196		/**
197		* @return string\|null Two-letter ISO-639-2 language code.
198		*
199		* @see http://www.loc.gov/standards/iso639-2/
200		*/
201	3	public function language(): ?string
202		{
203	3	return $this->language;
204		}
205
206		/**
207		* @param string\|null $language Two-letter ISO-639-2 language code.
208		*
209		* @see http://www.loc.gov/standards/iso639-2/
210		*
211		* @return self
212		*/
213	1	public function withLanguage(?string $language): self
214		{
215	1	$new = clone $this;
216	1	$new->language = $language;
217	1	return $new;
218		}
219
220		/**
221		* @return string\|null ICU calendar.
222		*/
223	2	public function calendar(): ?string
224		{
225	2	return $this->calendar;
226		}
227
228		/**
229		* @param string\|null $calendar ICU calendar.
230		*
231		* @return self
232		*/
233	3	public function withCalendar(?string $calendar): self
234		{
235	3	$new = clone $this;
236	3	$new->calendar = $calendar;
237	3	return $new;
238		}
239
240		/**
241		* @return string\|null ICU collation.
242		*/
243	2	public function collation(): ?string
244		{
245	2	return $this->collation;
246		}
247
248		/**
249		* @param string\|null $collation ICU collation.
250		*
251		* @return self
252		*/
253	3	public function withCollation(?string $collation): self
254		{
255	3	$new = clone $this;
256	3	$new->collation = $collation;
257	3	return $new;
258		}
259
260		/**
261		* @return string\|null ICU numbers.
262		*/
263	2	public function numbers(): ?string
264		{
265	2	return $this->numbers;
266		}
267
268		/**
269		* @param string\|null $numbers ICU numbers.
270		*
271		* @return self
272		*/
273	3	public function withNumbers(?string $numbers): self
274		{
275	3	$new = clone $this;
276	3	$new->numbers = $numbers;
277	3	return $new;
278		}
279
280		/**
281		* @return string Two-letter ISO 3166-1 country code.
282		*
283		* @see https://www.iso.org/iso-3166-country-codes.html
284		*/
285	5	public function region(): ?string
286		{
287	5	return $this->region;
288		}
289
290		/**
291		* @param string\|null $region Two-letter ISO 3166-1 country code.
292		*
293		* @see https://www.iso.org/iso-3166-country-codes.html
294		*
295		* @return self
296		*/
297	2	public function withRegion(?string $region): self
298		{
299	2	$new = clone $this;
300	2	$new->region = $region;
301	2	return $new;
302		}
303
304		/**
305		* @return string ICU currency.
306		*/
307	2	public function currency(): ?string
308		{
309	2	return $this->currency;
310		}
311
312		/**
313		* @param string\|null $currency ICU currency.
314		*
315		* @return self
316		*/
317	3	public function withCurrency(?string $currency): self
318		{
319	3	$new = clone $this;
320	3	$new->currency = $currency;
321
322	3	return $new;
323		}
324
325		/**
326		* @return string\|null Extended language subtags.
327		*/
328	2	public function extendedLanguage(): ?string
329		{
330	2	return $this->extendedLanguage;
331		}
332
333		/**
334		* @param string\|null $extendedLanguage Extended language subtags.
335		*
336		* @return self
337		*/
338	3	public function withExtendedLanguage(?string $extendedLanguage): self
339		{
340	3	$new = clone $this;
341	3	$new->extendedLanguage = $extendedLanguage;
342
343	3	return $new;
344		}
345
346		/**
347		* @return string\|null
348		*/
349	3	public function private(): ?string
350		{
351	3	return $this->private;
352		}
353
354		/**
355		* @param string\|null $private
356		*
357		* @return self
358		*/
359	3	public function withPrivate(?string $private): self
360		{
361	3	$new = clone $this;
362	3	$new->private = $private;
363
364	3	return $new;
365		}
366
367		/**
368		* @return string Regular expression for parsing BCP 47.
369		*
370		* @see https://tools.ietf.org/html/bcp47
371		*/
372	28	private static function getBCP47Regex(): string
373		{
374	28	$regular = '(?:art-lojban\|cel-gaulish\|no-bok\|no-nyn\|zh-guoyu\|zh-hakka\|zh-min\|zh-min-nan\|zh-xiang)';
375	28	$irregular = '(?:en-GB-oed\|i-ami\|i-bnn\|i-default\|i-enochian\|i-hak\|i-klingon\|i-lux\|i-mingo\|i-navajo\|i-pwn\|i-tao\|i-tay\|i-tsu\|sgn-BE-FR\|sgn-BE-NL\|sgn-CH-DE)';
376	28	$grandfathered = '(?<grandfathered>' . $irregular . '\|' . $regular . ')';
377	28	$private = '(?<private>x(?:-[A-Za-z0-9]{1,8})+)';
378	28	$singleton = '[0-9A-WY-Za-wy-z]';
379	28	$extension = '(?<extension>' . $singleton . '(?:-[A-Za-z0-9]{2,8})+)';
380	28	$variant = '(?<variant>[A-Za-z0-9]{5,8}\|[0-9][A-Za-z0-9]{3})';
381	28	$region = '(?<region>[A-Za-z]{2}\|[0-9]{3})';
382	28	$script = '(?<script>[A-Za-z]{4})';
383	28	$extendedLanguage = '(?<extendedLanguage>[A-Za-z]{3}(?:-[A-Za-z]{3}){0,2})';
384	28	$language = '(?<language>[A-Za-z]{4,8})\|(?<language>[A-Za-z]{2,3})(?:-' . $extendedLanguage . ')?';
385	28	$icuKeywords = '(?:@(?<keywords>.*?))?';
386	28	$languageTag = '(?:' . $language . '(?:-' . $script . ')?' . '(?:-' . $region . ')?' . '(?:-' . $variant . ')' . '(?:-' . $extension . ')' . '(?:-' . $private . ')?' . ')';
387	28	return '/^(?J:' . $grandfathered . '\|' . $languageTag . '\|' . $private . ')' . $icuKeywords . '$/';
388		}
389
390	1	public function __toString(): string
391		{
392	1	return $this->asString();
393		}
394
395		/**
396		* @return string Locale string.
397		*/
398	3	public function asString(): string
399		{
400	3	if ($this->grandfathered !== null) {
401	1	return $this->grandfathered;
402		}
403
404	3	$result = [];
405	3	if ($this->language !== null) {
406	3	$result[] = $this->language;
407
408	3	if ($this->extendedLanguage !== null) {
409	1	$result[] = $this->extendedLanguage;
410		}
411
412	3	if ($this->script !== null) {
413	1	$result[] = $this->script;
414		}
415
416	3	if ($this->region !== null) {
417	2	$result[] = $this->region;
418		}
419
420	3	if ($this->variant !== null) {
421	1	$result[] = $this->variant;
422		}
423
424	3	if ($this->extension !== null) {
425	1	$result[] = $this->extension;
426		}
427		}
428
429	3	if ($this->private !== null) {
430	1	$result[] = 'x-' . $this->private;
431		}
432
433	3	$keywords = [];
434	3	if ($this->currency !== null) {
435	1	$keywords[] = 'currency=' . $this->currency;
436		}
437	3	if ($this->collation !== null) {
438	1	$keywords[] = 'collation=' . $this->collation;
439		}
440	3	if ($this->calendar !== null) {
441	1	$keywords[] = 'calendar=' . $this->calendar;
442		}
443	3	if ($this->numbers !== null) {
444	1	$keywords[] = 'numbers=' . $this->numbers;
445		}
446
447	3	$string = implode('-', $result);
448
449	3	if ($keywords !== []) {
450	1	$string .= '@' . implode(';', $keywords);
451		}
452
453	3	return $string;
454		}
455
456		/**
457		* Returns fallback locale.
458		*
459		* @return self Fallback locale.
460		*/
461	2	public function fallbackLocale(): self
462		{
463		$fallback = $this
464	2	->withCalendar(null)
465	2	->withCollation(null)
466	2	->withCurrency(null)
467	2	->withExtendedLanguage(null)
468	2	->withNumbers(null)
469	2	->withPrivate(null);
470
471	2	if ($fallback->variant() !== null) {
472	1	return $fallback->withVariant(null);
473		}
474
475	2	if ($fallback->region() !== null) {
476	1	return $fallback->withRegion(null);
477		}
478
479	2	if ($fallback->script() !== null) {
480	1	return $fallback->withScript(null);
481		}
482
483	1	return $fallback;
484		}
485		}
486

yiisoft / i18n

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Locale::withScript() A

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