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<?php |
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|
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namespace Gettext\Languages; |
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|
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use Exception; |
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|
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/** |
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* Holds the CLDR data. |
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*/ |
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class CldrData |
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{ |
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/** |
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* Super-special plural category: this should always be present for any language. |
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* |
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* @var string |
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*/ |
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const OTHER_CATEGORY = 'other'; |
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|
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/** |
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* The list of the plural categories, sorted from 'zero' to 'other'. |
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* |
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* @var string[] |
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*/ |
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public static $categories = array('zero', 'one', 'two', 'few', 'many', self::OTHER_CATEGORY); |
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|
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/** |
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* The loaded CLDR data. |
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* |
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* @var array |
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*/ |
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private static $data; |
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|
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/** |
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* @var array |
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*/ |
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private static $plurals; |
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|
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/** |
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* Returns a dictionary containing the language names. |
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* The keys are the language identifiers. |
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* The values are the language names in US English. |
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* |
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* @return string[] |
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*/ |
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public static function getLanguageNames() |
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{ |
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return self::getData('languages'); |
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} |
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|
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/** |
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* Return a dictionary containing the territory names (in US English). |
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* The keys are the territory identifiers. |
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* The values are the territory names in US English. |
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* |
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* @return string[] |
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*/ |
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public static function getTerritoryNames() |
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{ |
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return self::getData('territories'); |
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} |
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|
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/** |
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* Return a dictionary containing the script names (in US English). |
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* The keys are the script identifiers. |
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* The values are the script names in US English. |
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* |
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* @param bool $standAlone set to true to retrieve the stand-alone script names, false otherwise |
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* |
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* @return string[] |
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*/ |
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public static function getScriptNames($standAlone) |
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{ |
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return self::getData($standAlone ? 'standAloneScripts' : 'scripts'); |
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} |
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|
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/** |
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* A dictionary containing the plural rules. |
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* The keys are the language identifiers. |
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* The values are arrays whose keys are the CLDR category names and the values are the CLDR category definition. |
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* |
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* @example The English key-value pair is somethink like this: |
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* <code><pre> |
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* "en": { |
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* "pluralRule-count-one": "i = 1 and v = 0 @integer 1", |
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* "pluralRule-count-other": " @integer 0, 2~16, 100, 1000, 10000, 100000, 1000000, … @decimal 0.0~1.5, 10.0, 100.0, 1000.0, 10000.0, 100000.0, 1000000.0, …" |
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* } |
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* </pre></code> |
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* |
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* @return array |
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*/ |
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public static function getPlurals() |
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{ |
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return self::getData('plurals'); |
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} |
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|
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/** |
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* Return a list of superseded language codes. |
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* |
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* @return array keys are the former language codes, values are the new language/locale codes |
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*/ |
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public static function getSupersededLanguages() |
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{ |
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return self::getData('supersededLanguages'); |
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} |
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|
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/** |
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* Retrieve the name of a language, as well as if a language code is deprecated in favor of another language code. |
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* |
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* @param string $id the language identifier |
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* |
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* @return array|null Returns an array with the keys 'id' (normalized), 'name', 'supersededBy' (optional), 'territory' (optional), 'script' (optional), 'baseLanguage' (optional), 'categories'. If $id is not valid returns null. |
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*/ |
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public static function getLanguageInfo($id) |
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{ |
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$result = null; |
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$matches = array(); |
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if (preg_match('/^([a-z]{2,3})(?:[_\-]([a-z]{4}))?(?:[_\-]([a-z]{2}|[0-9]{3}))?(?:$|-)/i', $id, $matches)) { |
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$languageId = strtolower($matches[1]); |
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$scriptId = (isset($matches[2]) && ($matches[2] !== '')) ? ucfirst(strtolower($matches[2])) : null; |
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$territoryId = (isset($matches[3]) && ($matches[3] !== '')) ? strtoupper($matches[3]) : null; |
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$normalizedId = $languageId; |
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if (isset($scriptId)) { |
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$normalizedId .= '_' . $scriptId; |
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} |
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if (isset($territoryId)) { |
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$normalizedId .= '_' . $territoryId; |
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} |
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// Structure precedence: see Likely Subtags - http://www.unicode.org/reports/tr35/tr35-31/tr35.html#Likely_Subtags |
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$variants = array(); |
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$variantsWithScript = array(); |
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$variantsWithTerritory = array(); |
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if (isset($scriptId) && isset($territoryId)) { |
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$variantsWithTerritory[] = $variantsWithScript[] = $variants[] = "{$languageId}_{$scriptId}_{$territoryId}"; |
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} |
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if (isset($scriptId)) { |
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$variantsWithScript[] = $variants[] = "{$languageId}_{$scriptId}"; |
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} |
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if (isset($territoryId)) { |
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$variantsWithTerritory[] = $variants[] = "{$languageId}_{$territoryId}"; |
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} |
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$variants[] = $languageId; |
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$allGood = true; |
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$scriptName = null; |
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$scriptStandAloneName = null; |
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if (isset($scriptId)) { |
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$scriptNames = self::getScriptNames(false); |
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if (isset($scriptNames[$scriptId])) { |
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$scriptName = $scriptNames[$scriptId]; |
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$scriptStandAloneNames = self::getScriptNames(true); |
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$scriptStandAloneName = $scriptStandAloneNames[$scriptId]; |
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} else { |
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$allGood = false; |
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} |
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} |
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$territoryName = null; |
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if (isset($territoryId)) { |
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$territoryNames = self::getTerritoryNames(); |
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if (isset($territoryNames[$territoryId])) { |
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if ($territoryId !== '001') { |
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$territoryName = $territoryNames[$territoryId]; |
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} |
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} else { |
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$allGood = false; |
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} |
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} |
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$languageName = null; |
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$languageNames = self::getLanguageNames(); |
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foreach ($variants as $variant) { |
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if (isset($languageNames[$variant])) { |
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$languageName = $languageNames[$variant]; |
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if (isset($scriptName) && (!in_array($variant, $variantsWithScript))) { |
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$languageName = $scriptName . ' ' . $languageName; |
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} |
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if (isset($territoryName) && (!in_array($variant, $variantsWithTerritory))) { |
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$languageName .= ' (' . $territoryNames[$territoryId] . ')'; |
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} |
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break; |
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} |
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} |
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if (!isset($languageName)) { |
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$allGood = false; |
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} |
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$baseLanguage = null; |
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if (isset($scriptId) || isset($territoryId)) { |
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if (isset($languageNames[$languageId]) && ($languageNames[$languageId] !== $languageName)) { |
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$baseLanguage = $languageNames[$languageId]; |
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} |
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} |
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$plural = null; |
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$plurals = self::getPlurals(); |
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foreach ($variants as $variant) { |
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if (isset($plurals[$variant])) { |
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$plural = $plurals[$variant]; |
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break; |
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} |
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} |
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if (!isset($plural)) { |
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$allGood = false; |
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} |
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$supersededBy = null; |
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$supersededBys = self::getSupersededLanguages(); |
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foreach ($variants as $variant) { |
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if (isset($supersededBys[$variant])) { |
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$supersededBy = $supersededBys[$variant]; |
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break; |
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} |
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} |
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if ($allGood) { |
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$result = array(); |
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$result['id'] = $normalizedId; |
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$result['name'] = $languageName; |
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if (isset($supersededBy)) { |
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$result['supersededBy'] = $supersededBy; |
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} |
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if (isset($scriptStandAloneName)) { |
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$result['script'] = $scriptStandAloneName; |
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} |
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if (isset($territoryName)) { |
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$result['territory'] = $territoryName; |
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} |
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if (isset($baseLanguage)) { |
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$result['baseLanguage'] = $baseLanguage; |
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} |
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$result['categories'] = $plural; |
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} |
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} |
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|
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return $result; |
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} |
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|
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/** |
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* Returns the loaded CLDR data. |
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* |
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* @param string $key Can be 'languages', 'territories', 'plurals', 'supersededLanguages', 'scripts', 'standAloneScripts' |
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* |
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* @return array |
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*/ |
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private static function getData($key) |
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{ |
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if (!isset(self::$data)) { |
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$fixKeys = function ($list, &$standAlone = null) { |
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$result = array(); |
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$standAlone = array(); |
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$match = null; |
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foreach ($list as $key => $value) { |
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$variant = ''; |
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if (preg_match('/^(.+)-alt-(short|variant|stand-alone|long|menu)$/', $key, $match)) { |
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$key = $match[1]; |
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$variant = $match[2]; |
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} |
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$key = str_replace('-', '_', $key); |
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switch ($key) { |
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case 'root': // Language: Root |
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case 'und': // Language: Unknown Language |
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case 'zxx': // Language: No linguistic content |
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case 'ZZ': // Territory: Unknown Region |
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case 'Zinh': // Script: Inherited |
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case 'Zmth': // Script: Mathematical Notation |
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case 'Zsym': // Script: Symbols |
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case 'Zxxx': // Script: Unwritten |
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case 'Zyyy': // Script: Common |
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case 'Zzzz': // Script: Unknown Script |
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break; |
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default: |
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switch ($variant) { |
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case 'stand-alone': |
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$standAlone[$key] = $value; |
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break; |
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case '': |
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$result[$key] = $value; |
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break; |
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} |
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break; |
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} |
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} |
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|
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return $result; |
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}; |
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$data = array(); |
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$json = json_decode(file_get_contents(__DIR__ . '/cldr-data/main/en-US/languages.json'), true); |
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$data['languages'] = $fixKeys($json['main']['en-US']['localeDisplayNames']['languages']); |
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$json = json_decode(file_get_contents(__DIR__ . '/cldr-data/main/en-US/territories.json'), true); |
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$data['territories'] = $fixKeys($json['main']['en-US']['localeDisplayNames']['territories']); |
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$json = json_decode(file_get_contents(__DIR__ . '/cldr-data/supplemental/plurals.json'), true); |
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$data['plurals'] = $fixKeys($json['supplemental']['plurals-type-cardinal']); |
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$json = json_decode(file_get_contents(__DIR__ . '/cldr-data/main/en-US/scripts.json'), true); |
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$data['scripts'] = $fixKeys($json['main']['en-US']['localeDisplayNames']['scripts'], $data['standAloneScripts']); |
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$data['standAloneScripts'] = array_merge($data['scripts'], $data['standAloneScripts']); |
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$data['scripts'] = array_merge($data['standAloneScripts'], $data['scripts']); |
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$data['supersededLanguages'] = array(); |
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// Remove the languages for which we don't have plurals |
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$m = null; |
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foreach (array_keys(array_diff_key($data['languages'], $data['plurals'])) as $missingPlural) { |
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if (preg_match('/^([a-z]{2,3})_/', $missingPlural, $m)) { |
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if (!isset($data['plurals'][$m[1]])) { |
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unset($data['languages'][$missingPlural]); |
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} |
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} else { |
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unset($data['languages'][$missingPlural]); |
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} |
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} |
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// Fix the languages for which we have plurals |
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$formerCodes = array( |
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'in' => 'id', // former Indonesian |
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'iw' => 'he', // former Hebrew |
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'ji' => 'yi', // former Yiddish |
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'jw' => 'jv', // former Javanese |
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'mo' => 'ro_MD', // former Moldavian |
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); |
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$knownMissingLanguages = array( |
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'guw' => 'Gun', |
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'hnj' => 'Mong Njua', |
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'nah' => 'Nahuatl', |
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'smi' => 'Sami', |
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); |
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foreach (array_keys(array_diff_key($data['plurals'], $data['languages'])) as $missingLanguage) { |
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if (isset($formerCodes[$missingLanguage]) && isset($data['languages'][$formerCodes[$missingLanguage]])) { |
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$data['languages'][$missingLanguage] = $data['languages'][$formerCodes[$missingLanguage]]; |
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$data['supersededLanguages'][$missingLanguage] = $formerCodes[$missingLanguage]; |
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} else { |
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if (isset($knownMissingLanguages[$missingLanguage])) { |
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$data['languages'][$missingLanguage] = $knownMissingLanguages[$missingLanguage]; |
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} else { |
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throw new Exception("We have the plural rule for the language '{$missingLanguage}' but we don't have its language name"); |
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} |
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} |
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} |
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ksort($data['languages'], SORT_STRING); |
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ksort($data['territories'], SORT_STRING); |
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ksort($data['plurals'], SORT_STRING); |
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ksort($data['scripts'], SORT_STRING); |
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ksort($data['standAloneScripts'], SORT_STRING); |
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ksort($data['supersededLanguages'], SORT_STRING); |
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self::$data = $data; |
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} |
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if (!isset(self::$data[$key])) { |
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throw new Exception("Invalid CLDR data key: '{$key}'"); |
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} |
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|
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return self::$data[$key]; |
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} |
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} |
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|
