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<?php
/**
* A file with metadata about the locale it relates to
*/
class Loco_fs_LocaleFile extends Loco_fs_File {
/**
* @var Loco_Locale|null
*/
private $locale;
/**
* @var string
*/
private $suffix;
/**
* @var string
*/
private $prefix;
/**
* @var string
*/
private $hash = '';
/**
* Lazy handling of localized path info
* @return array [ prefix, suffix, hash ]
*/
public function split(){
if( is_null($this->suffix) ){
// note that `filename` isn't used here because of double extensions (.l10n.php)
$parts = explode('-',$this->basename() );
$tail = array_pop($parts);
$this->suffix = explode('.',$tail,2)[0];
// handle script hashes for JSONs only
if( '.json' === substr($tail,-5) && preg_match('/^[0-9a-f]{32}$/',$this->suffix) ){
$this->hash = $this->suffix;
$this->suffix = array_pop($parts);
}
$this->prefix = implode('-',$parts);
// handle situations where unsuffixed name is wrongly taken as the prefix
// e.g. "de.po" is valid but "hello.po" is not.
// There are still some ambiguous situations, e.g. "foo-bar.po" is valid, but nonsense
if( ! $this->prefix && ! $this->getLocale()->isValid() ){
$this->prefix = $this->suffix;
$this->suffix = '';
$this->locale = null;
}
}
return [ $this->prefix, $this->suffix, $this->hash ];
}
/**
* @return Loco_Locale
*/
public function getLocale(){
if( ! $this->locale ){
if( $tag = $this->getSuffix() ){
$this->locale = Loco_Locale::parse($tag);
}
else {
$this->locale = new Loco_Locale('');
}
}
return $this->locale;
}
/**
* @param $locale Loco_locale
* @return Loco_fs_LocaleFile
*/
public function cloneLocale( Loco_locale $locale ){
$this->split();
$path = (string) $locale;
if( $str = $this->prefix ){
$path = $str.'-'.$path;
}
if( $str = $this->extension() ){
$path .= '.'.$str;
}
if( $dir = $this->getParent() ){
$path = $dir->getPath().'/'.$path;
}
return new Loco_fs_LocaleFile($path);
}
/**
* Get prefix (or stem) from name that comes before locale suffix.
* @return string
*/
public function getPrefix(){
$info = $this->split();
return $info[0];
}
/**
* Get suffix (or locale code) from name that comes after "-" separator
* @return string
*/
public function getSuffix(){
$info = $this->split();
return $info[1];
}
/**
* @return string
*/
public function getHash(){
$info = $this->split();
return $info[2];
}
/**
* Test if file is suffix only, e.g. "en_US.po"
* @return bool
*/
public function hasSuffixOnly(){
$info = $this->split();
return $info[1] && ! $info[0];
}
/**
* Test if file is prefix only, e.g. "incorrect.po"
* @return bool
*/
public function hasPrefixOnly(){
$info = $this->split();
return $info[0] && ! $info[1];
}
}
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