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<?php
/**
* Implements support for message storage in YAML format.
*
* This class adds new key into FILES section: \c codeAsRoot.
* If it is set to true, all messages will under language code.
* @ingroup FFS
*/
class YamlFFS extends SimpleFFS implements MetaYamlSchemaExtender {
/**
* @param FileBasedMessageGroup $group
*/
public function __construct( FileBasedMessageGroup $group ) {
parent::__construct( $group );
$this->flattener = $this->getFlattener();
}
public function getFileExtensions() {
return [ '.yaml', '.yml' ];
}
/**
* @param string $data
* @return array Parsed data.
*/
public function readFromVariable( $data ) {
// Authors first.
$matches = [];
preg_match_all( '/^#\s*Author:\s*(.*)$/m', $data, $matches );
$authors = $matches[1];
// Then messages.
$messages = TranslateYaml::loadString( $data );
// Some groups have messages under language code
if ( isset( $this->extra['codeAsRoot'] ) ) {
$messages = array_shift( $messages );
}
$messages = $this->flatten( $messages );
$messages = $this->group->getMangler()->mangle( $messages );
foreach ( $messages as &$value ) {
$value = rtrim( $value, "\n" );
}
return [
'AUTHORS' => $authors,
'MESSAGES' => $messages,
];
}
/**
* @param MessageCollection $collection
* @return string
*/
protected function writeReal( MessageCollection $collection ) {
$output = $this->doHeader( $collection );
$output .= $this->doAuthors( $collection );
$mangler = $this->group->getMangler();
$messages = [];
/**
* @var $m TMessage
*/
foreach ( $collection as $key => $m ) {
$key = $mangler->unmangle( $key );
$value = $m->translation();
$value = str_replace( TRANSLATE_FUZZY, '', $value );
if ( $value === '' ) {
continue;
}
$messages[$key] = $value;
}
if ( !count( $messages ) ) {
return false;
}
$messages = $this->unflatten( $messages );
// Some groups have messages under language code.
if ( isset( $this->extra['codeAsRoot'] ) ) {
$code = $this->group->mapCode( $collection->code );
$messages = [ $code => $messages ];
}
$output .= TranslateYaml::dump( $messages );
return $output;
}
/**
* @param MessageCollection $collection
* @return string
*/
protected function doHeader( MessageCollection $collection ) {
global $wgSitename;
global $wgTranslateYamlLibrary;
$code = $collection->code;
$name = TranslateUtils::getLanguageName( $code );
$native = TranslateUtils::getLanguageName( $code, $code );
$output = "# Messages for $name ($native)\n";
$output .= "# Exported from $wgSitename\n";
if ( isset( $wgTranslateYamlLibrary ) ) {
$output .= "# Export driver: $wgTranslateYamlLibrary\n";
}
return $output;
}
/**
* @param MessageCollection $collection
* @return string
*/
protected function doAuthors( MessageCollection $collection ) {
$output = '';
$authors = $collection->getAuthors();
$authors = $this->filterAuthors( $authors, $collection->code );
foreach ( $authors as $author ) {
$output .= "# Author: $author\n";
}
return $output;
}
/**
* Obtains object used to flatten and unflatten arrays. In this implementation
* we use the ArrayFlattener class which also supports CLDR pluralization rules.
*
* @return object with flatten, unflatten methods
*/
protected function getFlattener() {
$nestingSeparator = $this->extra['nestingSeparator'] ?? '.';
$parseCLDRPlurals = $this->extra['parseCLDRPlurals'] ?? false;
// Instantiate helper class for flattening and unflattening nested arrays
return new ArrayFlattener( $nestingSeparator, $parseCLDRPlurals );
}
/**
* Flattens multidimensional array by using the path to the value as key
* with each individual key separated by a dot.
*
* @param array $messages
*
* @return array
*/
protected function flatten( $messages ) {
return $this->flattener->flatten( $messages );
}
/**
* Performs the reverse operation of flatten. Each dot (or custom separator)
* in the key starts a new subarray in the final array.
*
* @param array $messages
*
* @return array
*/
protected function unflatten( $messages ) {
return $this->flattener->unflatten( $messages );
}
public function isContentEqual( $a, $b ) {
return $this->flattener->compareContent( $a, $b );
}
public static function getExtraSchema() {
$schema = [
'root' => [
'_type' => 'array',
'_children' => [
'FILES' => [
'_type' => 'array',
'_children' => [
'codeAsRoot' => [
'_type' => 'boolean',
],
'nestingSeparator' => [
'_type' => 'text',
],
'parseCLDRPlurals' => [
'_type' => 'boolean',
]
]
]
]
]
];
return $schema;
}
}
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