Файл: system/vendor/gettext/translator/src/Translator.php
Строк: 448
<?php
declare(strict_types = 1);
namespace Gettext;
use GettextGeneratorArrayGenerator;
use InvalidArgumentException;
class Translator implements TranslatorInterface
{
protected $domain;
protected $dictionary = [];
protected $plurals = [];
public static function createFromTranslations(Translations ...$allTranslations): Translator
{
$translator = new static();
$arrayGenerator = new ArrayGenerator();
foreach ($allTranslations as $translations) {
$translator->addTranslations(
$arrayGenerator->generateArray($translations)
);
}
return $translator;
}
/**
* Load new translations from php files
*/
public function loadTranslations(string ...$files): self
{
foreach ($files as $file) {
$translations = include $file;
if (!is_array($translations)) {
throw new InvalidArgumentException('Invalid translations file: it must return an array');
}
$this->addTranslations($translations);
}
return $this;
}
/**
* Add new translations to the dictionary.
*/
public function addTranslations(array $translations): self
{
$domain = $translations['domain'] ?? '';
//Set the first domain loaded as default domain
if ($this->domain === null) {
$this->domain = $domain;
}
if (isset($this->dictionary[$domain])) {
$this->dictionary[$domain] = array_replace_recursive($this->dictionary[$domain], $translations['messages']);
return $this;
}
if (!empty($translations['plural-forms'])) {
list($count, $code) = array_map('trim', explode(';', $translations['plural-forms'], 2));
// extract just the expression turn 'n' into a php variable '$n'.
// Slap on a return keyword and semicolon at the end.
$this->plurals[$domain] = [
'count' => (int) str_replace('nplurals=', '', $count),
'code' => str_replace('plural=', 'return ', str_replace('n', '$n', $code)).';',
];
}
$this->dictionary[$domain] = $translations['messages'];
return $this;
}
/**
* Set the default domain.
*/
public function defaultDomain(string $domain): self
{
$this->domain = $domain;
return $this;
}
public function noop(string $original): string
{
return $original;
}
public function gettext(string $original): string
{
return $this->translate(null, null, $original);
}
public function ngettext(string $original, string $plural, int $value): string
{
return $this->translatePlural(null, null, $original, $plural, $value);
}
public function dngettext(string $domain, string $original, string $plural, int $value): string
{
return $this->translatePlural($domain, null, $original, $plural, $value);
}
public function npgettext(string $context, string $original, string $plural, int $value): string
{
return $this->translatePlural(null, $context, $original, $plural, $value);
}
public function pgettext(string $context, string $original): string
{
return $this->translate(null, $context, $original);
}
public function dgettext(string $domain, string $original): string
{
return $this->translate($domain, null, $original);
}
public function dpgettext(string $domain, string $context, string $original): string
{
return $this->translate($domain, $context, $original);
}
public function dnpgettext(string $domain, string $context, string $original, string $plural, int $value): string
{
return $this->translatePlural($domain, $context, $original, $plural, $value);
}
protected function translate(?string $domain, ?string $context, string $original): string
{
$translation = $this->getTranslation($domain, $context, $original);
if (isset($translation[0]) && $translation[0] !== '') {
return $translation[0];
}
return $original;
}
protected function translatePlural(
?string $domain,
?string $context,
string $original,
string $plural,
int $value
): string {
$translation = $this->getTranslation($domain, $context, $original);
$key = $this->getPluralIndex($domain, $value, $translation === null);
if (isset($translation[$key]) && $translation[$key] !== '') {
return $translation[$key];
}
return ($key === 0) ? $original : $plural;
}
/**
* Search and returns a translation.
*/
protected function getTranslation(?string $domain, ?string $context, string $original): ?array
{
if ($domain === null) {
$domain = $this->domain;
}
if ($context === null) {
$context = '';
}
$translation = $this->dictionary[$domain][$context][$original] ?? null;
return $translation === null ? $translation : (array) $translation;
}
/**
* Executes the plural decision code given the number to decide which
* plural version to take.
*/
protected function getPluralIndex(?string $domain, int $n, bool $fallback): int
{
if ($domain === null) {
$domain = $this->domain;
}
//Not loaded domain or translation, use a fallback
if (!isset($this->plurals[$domain]) || $fallback === true) {
return $n == 1 ? 0 : 1;
}
if (!isset($this->plurals[$domain]['function'])) {
$code = self::fixTerseIfs($this->plurals[$domain]['code']);
$this->plurals[$domain]['function'] = eval("return function ($n) { $code };");
}
if ($this->plurals[$domain]['count'] <= 2) {
return call_user_func($this->plurals[$domain]['function'], $n) ? 1 : 0;
}
return call_user_func($this->plurals[$domain]['function'], $n);
}
/**
* This function will recursively wrap failure states in brackets if they contain a nested terse if.
*
* This because PHP can not handle nested terse if's unless they are wrapped in brackets.
*
* This code probably only works for the gettext plural decision codes.
*
* return ($n==1 ? 0 : $n%10>=2 && $n%10<=4 && ($n%100<10 || $n%100>=20) ? 1 : 2);
* becomes
* return ($n==1 ? 0 : ($n%10>=2 && $n%10<=4 && ($n%100<10 || $n%100>=20) ? 1 : 2));
*/
private static function fixTerseIfs(string $code, bool $inner = false): string
{
/*
* (?P<expression>[^?]+) Capture everything up to ? as 'expression'
* ? ?
* (?P<success>[^:]+) Capture everything up to : as 'success'
* : :
* (?P<failure>[^;]+) Capture everything up to ; as 'failure'
*/
preg_match('/(?P<expression>[^?]+)?(?P<success>[^:]+):(?P<failure>[^;]+)/', $code, $matches);
// If no match was found then no terse if was present
if (!isset($matches[0])) {
return $code;
}
$expression = $matches['expression'];
$success = $matches['success'];
$failure = $matches['failure'];
// Go look for another terse if in the failure state.
$failure = static::fixTerseIfs($failure, true);
$code = $expression.' ? '.$success.' : '.$failure;
if ($inner) {
return "($code)";
}
// note the semicolon. We need that for executing the code.
return "$code;";
}
}