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<?php
/**
* Support for XML translation format used by Android.
*
* @file
* @author Niklas Laxström
* @license GPL-2.0+
*/
/**
* Support for XML translation format used by Android.
* @since 2012-08-19
* @ingroup FFS
*/
class AndroidXmlFFS extends SimpleFFS {
protected static $pluralWords = array(
'zero' => 1,
'one' => 1,
'two' => 1,
'few' => 1,
'many' => 1,
'other' => 1,
);
public function supportsFuzzy() {
return 'yes';
}
public function getFileExtensions() {
return array( '.xml' );
}
/**
* @param string $data
* @return array Parsed data.
*/
public function readFromVariable( $data ) {
$reader = new SimpleXMLElement( $data );
$messages = array();
$mangler = $this->group->getMangler();
/** @var SimpleXMLElement $element */
foreach ( $reader as $element ) {
$key = (string)$element['name'];
if ( $element->getName() === 'string' ) {
$value = $this->readElementContents( $element );
} elseif ( $element->getName() === 'plurals' ) {
$forms = array();
foreach ( $element as $item ) {
$forms[(string)$item['quantity']] = $this->readElementContents( $item );
}
$value = $this->flattenPlural( $forms );
} else {
wfDebug( __METHOD__ . ': Unknown XML element name.' );
continue;
}
if ( isset( $element['fuzzy'] ) && (string)$element['fuzzy'] === 'true' ) {
$value = TRANSLATE_FUZZY . $value;
}
$messages[$key] = $value;
}
return array(
'AUTHORS' => array(), // @todo
'MESSAGES' => $mangler->mangle( $messages ),
);
}
protected function readElementContents( $element ) {
return stripcslashes( (string)$element );
}
protected function formatElementContents( $contents ) {
// Kudos to the brilliant person who invented this braindead file format
$escaped = addcslashes( $contents, '"\'' );
if ( substr( $escaped, 0, 1 ) === '@' ) {
// '@' at beginning of string refers to another string by name.
// Add backslash to escape it too.
$escaped = '\\' . $escaped;
}
return $escaped;
}
protected function writeReal( MessageCollection $collection ) {
$template = <<<XML
<?xml version="1.0" encoding="utf-8"?>
<resources></resources>
XML;
$writer = new SimpleXMLElement( $template );
$mangler = $this->group->getMangler();
$collection->filter( 'hastranslation', false );
if ( count( $collection ) === 0 ) {
return '';
}
/**
* @var $m TMessage
*/
foreach ( $collection as $key => $m ) {
$key = $mangler->unmangle( $key );
$value = $m->translation();
$value = str_replace( TRANSLATE_FUZZY, '', $value );
// Handle plurals
if ( strpos( $value, '{{PLURAL' ) === false ) {
$element = $writer->addChild( 'string', $this->formatElementContents( $value ) );
} else {
$element = $writer->addChild( 'plurals' );
$forms = $this->unflattenPlural( $value );
foreach ( $forms as $quantity => $content ) {
$item = $element->addChild( 'item', $this->formatElementContents( $content ) );
$item->addAttribute( 'quantity', $quantity );
}
}
$element->addAttribute( 'name', $key );
// This is non-standard
if ( $m->hasTag( 'fuzzy' ) ) {
$element->addAttribute( 'fuzzy', 'true' );
}
}
// Make the output pretty with DOMDocument
$dom = new DOMDocument( '1.0' );
$dom->formatOutput = true;
$dom->loadXML( $writer->asXML() );
return $dom->saveXML();
}
/**
* Flattens array of plurals into string.
*
* @param array $forms array
* @return string
*/
protected function flattenPlural( array $forms ) {
$pls = '{{PLURAL';
foreach ( $forms as $key => $value ) {
$pls .= "|$key=$value";
}
$pls .= '}}';
return $pls;
}
/**
* Converts the flattened plural into messages
*
* @param string $message
* @return array
*/
protected function unflattenPlural( $message ) {
$regex = '~\{\{PLURAL\|(.*?)}}~s';
$matches = array();
$match = array();
while ( preg_match( $regex, $message, $match ) ) {
$uniqkey = TranslateUtils::getPlaceholder();
$matches[$uniqkey] = $match;
$message = preg_replace( $regex, $uniqkey, $message, 1 );
}
// No plurals, should not happen.
if ( !count( $matches ) ) {
return array();
}
// The final array of alternative plurals forms.
$alts = array();
/*
* Then loop trough each plural block and replacing the placeholders
* to construct the alternatives. Produces invalid output if there is
* multiple plural bocks which don't have the same set of keys.
*/
$pluralChoice = implode( '|', array_keys( self::$pluralWords ) );
$regex = "~($pluralChoice)\s*=\s*(.+)~s";
foreach ( $matches as $ph => $plu ) {
$forms = explode( '|', $plu[1] );
foreach ( $forms as $form ) {
if ( $form === '' ) {
continue;
}
$match = array();
if ( !preg_match( $regex, $form, $match ) ) {
// No quantity key was provided
continue;
}
$formWord = $match[1];
$value = $match[2];
if ( !isset( $alts[$formWord] ) ) {
$alts[$formWord] = $message;
}
$string = $alts[$formWord];
$alts[$formWord] = str_replace( $ph, $value, $string );
}
}
return $alts;
}
}
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