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-rw-r--r--vendor/ipl/i18n/src/Locale.php124
1 files changed, 124 insertions, 0 deletions
diff --git a/vendor/ipl/i18n/src/Locale.php b/vendor/ipl/i18n/src/Locale.php
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+++ b/vendor/ipl/i18n/src/Locale.php
@@ -0,0 +1,124 @@
+<?php
+
+namespace ipl\I18n;
+
+class Locale
+{
+ /** @var string Default locale code */
+ protected $defaultLocale = 'en_US';
+
+ /**
+ * Get the default locale
+ *
+ * @return string
+ */
+ public function getDefaultLocale()
+ {
+ return $this->defaultLocale;
+ }
+
+ /**
+ * Set the default locale
+ *
+ * @param string $defaultLocale
+ *
+ * @return $this
+ */
+ public function setDefaultLocale($defaultLocale)
+ {
+ $this->defaultLocale = $defaultLocale;
+
+ return $this;
+ }
+
+ /**
+ * Return the preferred locale based on the given HTTP header and the available translations
+ *
+ * @param string $header The HTTP "Accept-Language" header
+ * @param array $available Available translations
+ *
+ * @return string The browser's preferred locale code
+ */
+ public function getPreferred($header, array $available)
+ {
+ $headerValues = explode(',', $header);
+ for ($i = 0; $i < count($headerValues); $i++) {
+ // In order to accomplish a stable sort we need to take the original
+ // index into account as well during element comparison
+ $headerValues[$i] = [$headerValues[$i], $i];
+ }
+ usort( // Sort DESC but keep equal elements ASC
+ $headerValues,
+ function ($a, $b) {
+ $tagA = explode(';', $a[0], 2);
+ $tagB = explode(';', $b[0], 2);
+ $qValA = (float) (strpos($a[0], ';') > 0 ? substr(array_pop($tagA), 2) : 1);
+ $qValB = (float) (strpos($b[0], ';') > 0 ? substr(array_pop($tagB), 2) : 1);
+
+ return $qValA < $qValB ? 1 : ($qValA > $qValB ? -1 : ($a[1] > $b[1] ? 1 : ($a[1] < $b[1] ? -1 : 0)));
+ }
+ );
+ for ($i = 0; $i < count($headerValues); $i++) {
+ // We need to reset the array to its original structure once it's sorted
+ $headerValues[$i] = $headerValues[$i][0];
+ }
+ $requestedLocales = [];
+ foreach ($headerValues as $headerValue) {
+ if (strpos($headerValue, ';') > 0) {
+ $parts = explode(';', $headerValue, 2);
+ $headerValue = $parts[0];
+ }
+ $requestedLocales[] = str_replace('-', '_', $headerValue);
+ }
+ $requestedLocales = array_combine(
+ array_map('strtolower', array_values($requestedLocales)),
+ array_values($requestedLocales)
+ );
+
+ $available[] = $this->defaultLocale;
+ $availableLocales = array_combine(
+ array_map('strtolower', array_values($available)),
+ array_values($available)
+ );
+
+ $similarMatch = null;
+
+ foreach ($requestedLocales as $requestedLocaleLowered => $requestedLocale) {
+ $localeObj = $this->parseLocale($requestedLocaleLowered);
+
+ if (
+ isset($availableLocales[$requestedLocaleLowered])
+ && (! $similarMatch || $this->parseLocale($similarMatch)->language === $localeObj->language)
+ ) {
+ // Prefer perfect match only if no similar match has been found yet or the perfect match is more precise
+ // than the similar match
+ return $availableLocales[$requestedLocaleLowered];
+ }
+
+ if (! $similarMatch) {
+ foreach ($availableLocales as $availableLocaleLowered => $availableLocale) {
+ if ($this->parseLocale($availableLocaleLowered)->language === $localeObj->language) {
+ $similarMatch = $availableLocaleLowered;
+ break;
+ }
+ }
+ }
+ }
+
+ return $similarMatch ? $availableLocales[$similarMatch] : $this->defaultLocale;
+ }
+
+ /**
+ * Parse a locale into its subtags
+ *
+ * Converts to output of {@link \Locale::parseLocale()} to an object and returns it.
+ *
+ * @param string $locale
+ *
+ * @return object Output of {@link \Locale::parseLocale()} converted to an object
+ */
+ public function parseLocale($locale)
+ {
+ return (object) \Locale::parseLocale($locale);
+ }
+}