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<?php
declare(strict_types=1);
/**
* This file is part of the Carbon package.
*
* (c) Brian Nesbitt <brian@nesbot.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Carbon\Traits;
use Carbon\CarbonInterface;
use Carbon\Exceptions\InvalidTypeException;
use Carbon\Exceptions\NotLocaleAwareException;
use Carbon\Language;
use Carbon\Translator;
use Carbon\TranslatorStrongTypeInterface;
use Closure;
use Symfony\Component\Translation\TranslatorBagInterface;
use Symfony\Contracts\Translation\LocaleAwareInterface;
use Symfony\Contracts\Translation\TranslatorInterface;
/**
* Trait Localization.
*
* Embed default and locale translators and translation base methods.
*/
trait Localization
{
use StaticLocalization;
/**
* Specific translator of the current instance.
*/
protected ?TranslatorInterface $localTranslator = null;
/**
* Return true if the current instance has its own translator.
*/
public function hasLocalTranslator(): bool
{
return isset($this->localTranslator);
}
/**
* Get the translator of the current instance or the default if none set.
*/
public function getLocalTranslator(): TranslatorInterface
{
return $this->localTranslator ?? $this->transmitFactory(static fn () => static::getTranslator());
}
/**
* Set the translator for the current instance.
*/
public function setLocalTranslator(TranslatorInterface $translator): self
{
$this->localTranslator = $translator;
return $this;
}
/**
* Returns raw translation message for a given key.
*
* @param TranslatorInterface|null $translator the translator to use
* @param string $key key to find
* @param string|null $locale current locale used if null
* @param string|null $default default value if translation returns the key
*
* @return string|Closure|null
*/
public static function getTranslationMessageWith($translator, string $key, ?string $locale = null, ?string $default = null)
{
if (!($translator instanceof TranslatorBagInterface && $translator instanceof TranslatorInterface)) {
throw new InvalidTypeException(
'Translator does not implement '.TranslatorInterface::class.' and '.TranslatorBagInterface::class.'. '.
(\is_object($translator) ? \get_class($translator) : \gettype($translator)).' has been given.',
);
}
if (!$locale && $translator instanceof LocaleAwareInterface) {
$locale = $translator->getLocale();
}
$result = self::getFromCatalogue($translator, $translator->getCatalogue($locale), $key);
return $result === $key ? $default : $result;
}
/**
* Returns raw translation message for a given key.
*
* @param string $key key to find
* @param string|null $locale current locale used if null
* @param string|null $default default value if translation returns the key
* @param TranslatorInterface $translator an optional translator to use
*
* @return string
*/
public function getTranslationMessage(string $key, ?string $locale = null, ?string $default = null, $translator = null)
{
return static::getTranslationMessageWith($translator ?? $this->getLocalTranslator(), $key, $locale, $default);
}
/**
* Translate using translation string or callback available.
*
* @param TranslatorInterface $translator an optional translator to use
* @param string $key key to find
* @param array $parameters replacement parameters
* @param int|float|null $number number if plural
*
* @return string
*/
public static function translateWith(TranslatorInterface $translator, string $key, array $parameters = [], $number = null): string
{
$message = static::getTranslationMessageWith($translator, $key, null, $key);
if ($message instanceof Closure) {
return (string) $message(...array_values($parameters));
}
if ($number !== null) {
$parameters['%count%'] = $number;
}
if (isset($parameters['%count%'])) {
$parameters[':count'] = $parameters['%count%'];
}
return (string) $translator->trans($key, $parameters);
}
/**
* Translate using translation string or callback available.
*
* @param string $key key to find
* @param array $parameters replacement parameters
* @param string|int|float|null $number number if plural
* @param TranslatorInterface|null $translator an optional translator to use
* @param bool $altNumbers pass true to use alternative numbers
*
* @return string
*/
public function translate(
string $key,
array $parameters = [],
string|int|float|null $number = null,
?TranslatorInterface $translator = null,
bool $altNumbers = false,
): string {
$translation = static::translateWith($translator ?? $this->getLocalTranslator(), $key, $parameters, $number);
if ($number !== null && $altNumbers) {
return str_replace((string) $number, $this->translateNumber((int) $number), $translation);
}
return $translation;
}
/**
* Returns the alternative number for a given integer if available in the current locale.
*
* @param int $number
*
* @return string
*/
public function translateNumber(int $number): string
{
$translateKey = "alt_numbers.$number";
$symbol = $this->translate($translateKey);
if ($symbol !== $translateKey) {
return $symbol;
}
if ($number > 99 && $this->translate('alt_numbers.99') !== 'alt_numbers.99') {
$start = '';
foreach ([10000, 1000, 100] as $exp) {
$key = "alt_numbers_pow.$exp";
if ($number >= $exp && $number < $exp * 10 && ($pow = $this->translate($key)) !== $key) {
$unit = floor($number / $exp);
$number -= $unit * $exp;
$start .= ($unit > 1 ? $this->translate("alt_numbers.$unit") : '').$pow;
}
}
$result = '';
while ($number) {
$chunk = $number % 100;
$result = $this->translate("alt_numbers.$chunk").$result;
$number = floor($number / 100);
}
return "$start$result";
}
if ($number > 9 && $this->translate('alt_numbers.9') !== 'alt_numbers.9') {
$result = '';
while ($number) {
$chunk = $number % 10;
$result = $this->translate("alt_numbers.$chunk").$result;
$number = floor($number / 10);
}
return $result;
}
return (string) $number;
}
/**
* Translate a time string from a locale to an other.
*
* @param string $timeString date/time/duration string to translate (may also contain English)
* @param string|null $from input locale of the $timeString parameter (`Carbon::getLocale()` by default)
* @param string|null $to output locale of the result returned (`"en"` by default)
* @param int $mode specify what to translate with options:
* - CarbonInterface::TRANSLATE_ALL (default)
* - CarbonInterface::TRANSLATE_MONTHS
* - CarbonInterface::TRANSLATE_DAYS
* - CarbonInterface::TRANSLATE_UNITS
* - CarbonInterface::TRANSLATE_MERIDIEM
* You can use pipe to group: CarbonInterface::TRANSLATE_MONTHS | CarbonInterface::TRANSLATE_DAYS
*
* @return string
*/
public static function translateTimeString(
string $timeString,
?string $from = null,
?string $to = null,
int $mode = CarbonInterface::TRANSLATE_ALL,
): string {
// Fallback source and destination locales
$from = $from ?: static::getLocale();
$to = $to ?: CarbonInterface::DEFAULT_LOCALE;
if ($from === $to) {
return $timeString;
}
// Standardize apostrophe
$timeString = strtr($timeString, ['’' => "'"]);
$fromTranslations = [];
$toTranslations = [];
foreach (['from', 'to'] as $key) {
$language = $$key;
$translator = Translator::get($language);
$translations = $translator->getMessages();
if (!isset($translations[$language])) {
return $timeString;
}
$translationKey = $key.'Translations';
$messages = $translations[$language];
$months = $messages['months'] ?? [];
$weekdays = $messages['weekdays'] ?? [];
$meridiem = $messages['meridiem'] ?? ['AM', 'PM'];
if (isset($messages['ordinal_words'])) {
$timeString = self::replaceOrdinalWords(
$timeString,
$key === 'from' ? array_flip($messages['ordinal_words']) : $messages['ordinal_words']
);
}
if ($key === 'from') {
foreach (['months', 'weekdays'] as $variable) {
$list = $messages[$variable.'_standalone'] ?? null;
if ($list) {
foreach ($$variable as $index => &$name) {
$name .= '|'.$messages[$variable.'_standalone'][$index];
}
}
}
}
$$translationKey = array_merge(
$mode & CarbonInterface::TRANSLATE_MONTHS ? static::getTranslationArray($months, static::MONTHS_PER_YEAR, $timeString) : [],
$mode & CarbonInterface::TRANSLATE_MONTHS ? static::getTranslationArray($messages['months_short'] ?? [], static::MONTHS_PER_YEAR, $timeString) : [],
$mode & CarbonInterface::TRANSLATE_DAYS ? static::getTranslationArray($weekdays, static::DAYS_PER_WEEK, $timeString) : [],
$mode & CarbonInterface::TRANSLATE_DAYS ? static::getTranslationArray($messages['weekdays_short'] ?? [], static::DAYS_PER_WEEK, $timeString) : [],
$mode & CarbonInterface::TRANSLATE_DIFF ? static::translateWordsByKeys([
'diff_now',
'diff_today',
'diff_yesterday',
'diff_tomorrow',
'diff_before_yesterday',
'diff_after_tomorrow',
], $messages, $key) : [],
$mode & CarbonInterface::TRANSLATE_UNITS ? static::translateWordsByKeys([
'year',
'month',
'week',
'day',
'hour',
'minute',
'second',
], $messages, $key) : [],
$mode & CarbonInterface::TRANSLATE_MERIDIEM ? array_map(function ($hour) use ($meridiem) {
if (\is_array($meridiem)) {
return $meridiem[$hour < static::HOURS_PER_DAY / 2 ? 0 : 1];
}
return $meridiem($hour, 0, false);
}, range(0, 23)) : [],
);
}
return substr(preg_replace_callback('/(?<=[\d\s+.\/,_-])('.implode('|', $fromTranslations).')(?=[\d\s+.\/,_-])/iu', function ($match) use ($fromTranslations, $toTranslations) {
[$chunk] = $match;
foreach ($fromTranslations as $index => $word) {
if (preg_match("/^$word\$/iu", $chunk)) {
return $toTranslations[$index] ?? '';
}
}
return $chunk; // @codeCoverageIgnore
}, " $timeString "), 1, -1);
}
/**
* Translate a time string from the current locale (`$date->locale()`) to another one.
*
* @param string $timeString time string to translate
* @param string|null $to output locale of the result returned ("en" by default)
*
* @return string
*/
public function translateTimeStringTo(string $timeString, ?string $to = null): string
{
return static::translateTimeString($timeString, $this->getTranslatorLocale(), $to);
}
/**
* Get/set the locale for the current instance.
*
* @param string|null $locale
* @param string ...$fallbackLocales
*
* @return $this|string
*/
public function locale(?string $locale = null, string ...$fallbackLocales): static|string
{
if ($locale === null) {
return $this->getTranslatorLocale();
}
if (!$this->localTranslator || $this->getTranslatorLocale($this->localTranslator) !== $locale) {
$translator = Translator::get($locale);
if (!empty($fallbackLocales)) {
$translator->setFallbackLocales($fallbackLocales);
foreach ($fallbackLocales as $fallbackLocale) {
$messages = Translator::get($fallbackLocale)->getMessages();
if (isset($messages[$fallbackLocale])) {
$translator->setMessages($fallbackLocale, $messages[$fallbackLocale]);
}
}
}
$this->localTranslator = $translator;
}
return $this;
}
/**
* Get the current translator locale.
*
* @return string
*/
public static function getLocale(): string
{
return static::getLocaleAwareTranslator()->getLocale();
}
/**
* Set the current translator locale and indicate if the source locale file exists.
* Pass 'auto' as locale to use the closest language to the current LC_TIME locale.
*
* @param string $locale locale ex. en
*/
public static function setLocale(string $locale): void
{
static::getLocaleAwareTranslator()->setLocale($locale);
}
/**
* Set the fallback locale.
*
* @see https://symfony.com/doc/current/components/translation.html#fallback-locales
*
* @param string $locale
*/
public static function setFallbackLocale(string $locale): void
{
$translator = static::getTranslator();
if (method_exists($translator, 'setFallbackLocales')) {
$translator->setFallbackLocales([$locale]);
if ($translator instanceof Translator) {
$preferredLocale = $translator->getLocale();
$translator->setMessages($preferredLocale, array_replace_recursive(
$translator->getMessages()[$locale] ?? [],
Translator::get($locale)->getMessages()[$locale] ?? [],
$translator->getMessages($preferredLocale),
));
}
}
}
/**
* Get the fallback locale.
*
* @see https://symfony.com/doc/current/components/translation.html#fallback-locales
*/
public static function getFallbackLocale(): ?string
{
$translator = static::getTranslator();
if (method_exists($translator, 'getFallbackLocales')) {
return $translator->getFallbackLocales()[0] ?? null;
}
return null;
}
/**
* Set the current locale to the given, execute the passed function, reset the locale to previous one,
* then return the result of the closure (or null if the closure was void).
*
* @param string $locale locale ex. en
* @param callable $func
*
* @return mixed
*/
public static function executeWithLocale(string $locale, callable $func): mixed
{
$currentLocale = static::getLocale();
static::setLocale($locale);
$newLocale = static::getLocale();
$result = $func(
$newLocale === 'en' && strtolower(substr((string) $locale, 0, 2)) !== 'en'
? false
: $newLocale,
static::getTranslator(),
);
static::setLocale($currentLocale);
return $result;
}
/**
* Returns true if the given locale is internally supported and has short-units support.
* Support is considered enabled if either year, day or hour has a short variant translated.
*
* @param string $locale locale ex. en
*
* @return bool
*/
public static function localeHasShortUnits(string $locale): bool
{
return static::executeWithLocale($locale, function ($newLocale, TranslatorInterface $translator) {
return ($newLocale && (($y = static::translateWith($translator, 'y')) !== 'y' && $y !== static::translateWith($translator, 'year'))) || (
($y = static::translateWith($translator, 'd')) !== 'd' &&
$y !== static::translateWith($translator, 'day')
) || (
($y = static::translateWith($translator, 'h')) !== 'h' &&
$y !== static::translateWith($translator, 'hour')
);
});
}
/**
* Returns true if the given locale is internally supported and has diff syntax support (ago, from now, before, after).
* Support is considered enabled if the 4 sentences are translated in the given locale.
*
* @param string $locale locale ex. en
*
* @return bool
*/
public static function localeHasDiffSyntax(string $locale): bool
{
return static::executeWithLocale($locale, function ($newLocale, TranslatorInterface $translator) {
if (!$newLocale) {
return false;
}
foreach (['ago', 'from_now', 'before', 'after'] as $key) {
if ($translator instanceof TranslatorBagInterface &&
self::getFromCatalogue($translator, $translator->getCatalogue($newLocale), $key) instanceof Closure
) {
continue;
}
if ($translator->trans($key) === $key) {
return false;
}
}
return true;
});
}
/**
* Returns true if the given locale is internally supported and has words for 1-day diff (just now, yesterday, tomorrow).
* Support is considered enabled if the 3 words are translated in the given locale.
*
* @param string $locale locale ex. en
*
* @return bool
*/
public static function localeHasDiffOneDayWords(string $locale): bool
{
return static::executeWithLocale($locale, function ($newLocale, TranslatorInterface $translator) {
return $newLocale &&
$translator->trans('diff_now') !== 'diff_now' &&
$translator->trans('diff_yesterday') !== 'diff_yesterday' &&
$translator->trans('diff_tomorrow') !== 'diff_tomorrow';
});
}
/**
* Returns true if the given locale is internally supported and has words for 2-days diff (before yesterday, after tomorrow).
* Support is considered enabled if the 2 words are translated in the given locale.
*
* @param string $locale locale ex. en
*
* @return bool
*/
public static function localeHasDiffTwoDayWords(string $locale): bool
{
return static::executeWithLocale($locale, function ($newLocale, TranslatorInterface $translator) {
return $newLocale &&
$translator->trans('diff_before_yesterday') !== 'diff_before_yesterday' &&
$translator->trans('diff_after_tomorrow') !== 'diff_after_tomorrow';
});
}
/**
* Returns true if the given locale is internally supported and has period syntax support (X times, every X, from X, to X).
* Support is considered enabled if the 4 sentences are translated in the given locale.
*
* @param string $locale locale ex. en
*
* @return bool
*/
public static function localeHasPeriodSyntax($locale)
{
return static::executeWithLocale($locale, function ($newLocale, TranslatorInterface $translator) {
return $newLocale &&
$translator->trans('period_recurrences') !== 'period_recurrences' &&
$translator->trans('period_interval') !== 'period_interval' &&
$translator->trans('period_start_date') !== 'period_start_date' &&
$translator->trans('period_end_date') !== 'period_end_date';
});
}
/**
* Returns the list of internally available locales and already loaded custom locales.
* (It will ignore custom translator dynamic loading.)
*
* @return array
*/
public static function getAvailableLocales()
{
$translator = static::getLocaleAwareTranslator();
return $translator instanceof Translator
? $translator->getAvailableLocales()
: [$translator->getLocale()];
}
/**
* Returns list of Language object for each available locale. This object allow you to get the ISO name, native
* name, region and variant of the locale.
*
* @return Language[]
*/
public static function getAvailableLocalesInfo()
{
$languages = [];
foreach (static::getAvailableLocales() as $id) {
$languages[$id] = new Language($id);
}
return $languages;
}
/**
* Get the locale of a given translator.
*
* If null or omitted, current local translator is used.
* If no local translator is in use, current global translator is used.
*/
protected function getTranslatorLocale($translator = null): ?string
{
if (\func_num_args() === 0) {
$translator = $this->getLocalTranslator();
}
$translator = static::getLocaleAwareTranslator($translator);
return $translator?->getLocale();
}
/**
* Throw an error if passed object is not LocaleAwareInterface.
*
* @param LocaleAwareInterface|null $translator
*
* @return LocaleAwareInterface|null
*/
protected static function getLocaleAwareTranslator($translator = null)
{
if (\func_num_args() === 0) {
$translator = static::getTranslator();
}
if ($translator && !($translator instanceof LocaleAwareInterface || method_exists($translator, 'getLocale'))) {
throw new NotLocaleAwareException($translator); // @codeCoverageIgnore
}
return $translator;
}
/**
* @param mixed $translator
* @param \Symfony\Component\Translation\MessageCatalogueInterface $catalogue
*
* @return mixed
*/
private static function getFromCatalogue($translator, $catalogue, string $id, string $domain = 'messages')
{
return $translator instanceof TranslatorStrongTypeInterface
? $translator->getFromCatalogue($catalogue, $id, $domain)
: $catalogue->get($id, $domain); // @codeCoverageIgnore
}
/**
* Return the word cleaned from its translation codes.
*
* @param string $word
*
* @return string
*/
private static function cleanWordFromTranslationString($word)
{
$word = str_replace([':count', '%count', ':time'], '', $word);
$word = strtr($word, ['’' => "'"]);
$word = preg_replace(
'/\{(?:-?\d+(?:\.\d+)?|-?Inf)(?:,(?:-?\d+|-?Inf))?}|[\[\]](?:-?\d+(?:\.\d+)?|-?Inf)(?:,(?:-?\d+|-?Inf))?[\[\]]/',
'',
$word,
);
return trim($word);
}
/**
* Translate a list of words.
*
* @param string[] $keys keys to translate.
* @param string[] $messages messages bag handling translations.
* @param string $key 'to' (to get the translation) or 'from' (to get the detection RegExp pattern).
*
* @return string[]
*/
private static function translateWordsByKeys($keys, $messages, $key): array
{
return array_map(function ($wordKey) use ($messages, $key) {
$message = $key === 'from' && isset($messages[$wordKey.'_regexp'])
? $messages[$wordKey.'_regexp']
: ($messages[$wordKey] ?? null);
if (!$message) {
return '>>DO NOT REPLACE<<';
}
$parts = explode('|', $message);
return $key === 'to'
? self::cleanWordFromTranslationString(end($parts))
: '(?:'.implode('|', array_map(static::cleanWordFromTranslationString(...), $parts)).')';
}, $keys);
}
/**
* Get an array of translations based on the current date.
*
* @param callable $translation
* @param int $length
* @param string $timeString
*
* @return string[]
*/
private static function getTranslationArray($translation, $length, $timeString): array
{
$filler = '>>DO NOT REPLACE<<';
if (\is_array($translation)) {
return array_pad($translation, $length, $filler);
}
$list = [];
$date = static::now();
for ($i = 0; $i < $length; $i++) {
$list[] = $translation($date, $timeString, $i) ?? $filler;
}
return $list;
}
private static function replaceOrdinalWords(string $timeString, array $ordinalWords): string
{
return preg_replace_callback('/(?<![a-z])[a-z]+(?![a-z])/i', function (array $match) use ($ordinalWords) {
return $ordinalWords[mb_strtolower($match[0])] ?? $match[0];
}, $timeString);
}
}
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