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<?php
/**
* Represents a WordPress locale
*/
class Loco_Locale implements JsonSerializable {
/**
* @var array
*/
private $tag;
/**
* Name in English
* @var string
*/
private $name;
/**
* Name in language of self
* @var string
*/
private $_name;
/**
* Cache of raw plural data
* @var array
*/
private $plurals;
/**
* @return Loco_Locale
*/
public static function parse( $tag ){
$locale = new Loco_Locale('');
try {
$locale->setSubtags( loco_parse_locale($tag) );
}
catch( Exception $e ){
// isValid should return false
}
return $locale;
}
public function __construct( $lang = '', $region = '', $variant = '' ){
$this->tag = compact('lang','region','variant');
}
/**
* @internal
* Allow read-only access to subtags
*/
public function __get( $t ){
return isset($this->tag[$t]) ? $this->tag[$t] : '';
}
/**
* Set subtags as produced from loco_parse_locale
* @return Loco_Locale
*/
public function setSubtags( array $tag ){
$default = array( 'lang' => '', 'region' => '', 'variant' => '' );
// disallow setting of unsupported tags
if( $bad = array_diff_key($tag, $default) ){
throw new Loco_error_LocaleException('Unsupported subtags: '.implode(',',$bad) );
}
$tag += $default;
// language tag is minimum requirement
if( ! $tag['lang'] ){
throw new Loco_error_LocaleException('Locale must have a language');
}
// no UN codes in Wordpress
if( is_numeric($tag['region']) ){
throw new Loco_error_LocaleException('Numeric regions not supported');
}
// single, scalar variant. Only using for Formal german currently.
if( is_array($tag['variant']) ){
$tag['variant'] = implode('_',$tag['variant']);
}
$this->tag = $tag;
return $this;
}
/**
* @return string
*/
public function __toString(){
return implode('_',array_filter($this->tag));
}
/**
* @return string
*/
public function getName(){
return (string) $this->name;
}
/**
* @return string
*/
public function getNativeName(){
return (string) $this->_name;
}
/**
* @return string
*/
public function getIcon(){
$tag = array();
if( ! $this->tag['lang'] ){
$tag[] = 'lang lang-zxx';
}
foreach( $this->tag as $class => $code ){
if( $code ){
$tag[] = $class.' '.$class.'-'.$code;
}
}
return strtolower( implode(' ',$tag) );
}
/**
* @return Loco_Locale
*/
public function setName( $english_name, $native_name = '' ){
$this->name = $english_name;
$this->_name = $native_name;
return $this;
}
/**
* Test whether locale is valid
*/
public function isValid(){
return (bool) $this->tag['lang']; // && 'zxx' !== $this->tag['lang'];
}
/**
* @return Loco_Locale
*/
public function normalize(){
$this->tag['lang'] = strtolower($this->tag['lang']);
$this->tag['region'] = strtoupper($this->tag['region']);
$this->tag['variant'] = strtolower($this->tag['variant']);
return $this;
}
/**
* Resolve this locale's "official" name from WordPress's translation api
* @return string English name currently set
*/
public function fetchName( Loco_api_WordPressTranslations $api ){
$tag = $this->normalize()->__toString();
if( $raw = $api->getLocaleData($tag) ){
$this->setName( $raw['english_name'], $raw['native_name'] );
}
return $this->name;
}
/**
* Resolve this locale's name from compiled Loco data
* @return string English name currently set
*/
public function buildName(){
$names = array();
// should at least have a language or not valid
if( $this->isValid() ){
$code = $this->tag['lang'];
$db = Loco_data_CompiledData::get('languages');
if( $name = $db[$code] ){
// if variant is present add only that in brackets (no lookup required)
if( $code = $this->tag['variant'] ){
$name .= ' ('.ucfirst($code).')';
}
// else add region in brackets if present
else if( $code = $this->tag['region'] ){
$db = Loco_data_CompiledData::get('regions');
if( $extra = $db[$code] ){
$name .= ' ('.$extra.')';
}
else {
$name .= ' ('.$code.')';
}
}
$this->setName( $name );
}
}
else {
$this->name = __('Invalid locale','loco');
}
return $this->name;
}
/**
* @return array
*/
public function jsonSerialize(){
$a = $this->tag;
$a['label'] = $this->name;
// plural data expected by editor
$p = $this->getPluralData();
$a['pluraleq'] = $p[0];
$a['plurals'] = $p[1];
$a['nplurals'] = count($p[1]);
return $a;
}
/**
* Get raw plural data
* @internal
* @return array
*/
public function getPluralData(){
if( ! $this->plurals ){
$db = Loco_data_CompiledData::get('plurals');
$lc = $this->lang;
$id = isset($db[$lc]) ? $db[$lc] : 0;
$this->plurals = $db[''][$id];
}
return $this->plurals;
}
/**
* Get PO style Plural-Forms header value comprising number of forms and integer equation for n
* @return string
*/
public function getPluralFormsHeader(){
list( $equation, $forms ) = $this->getPluralData();
return sprintf('nplurals=%u; plural=%s;', count($forms), $equation );
}
/**
* @return string
*/
public function exportJson(){
return json_encode( $this->jsonSerialize() );
}
}
// Depends on compiled library
if( ! function_exists('loco_parse_locale') ){
loco_include('lib/compiled/locales.php');
}
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