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<?php
namespace SMW\DataValues\ValueFormatters;
use SMWDataValue as DataValue;
use SMWOutputs as Outputs;
/**
* @license GNU GPL v2+
* @since 2.4
*
* @author mwjames
*/
class CodeStringValueFormatter extends StringValueFormatter {
/**
* @since 2.4
*
* {@inheritDoc}
*/
public function isFormatterFor( DataValue $dataValue ) {
return $dataValue->getTypeID() === '_cod';
}
/**
* @see StringValueFormatter::doFormat
*/
protected function doFormat( $dataValue, $type, $linker ) {
$abbreviate = $type === self::WIKI_LONG || $type === self::HTML_LONG;
$text = $dataValue->getDataItem()->getString();
// Escape and wrap values of type Code. The result is escaped to be
// HTML-safe (it will also work in wiki context). The result will
// contain mark-up that must not be escaped again.
Outputs::requireResource( 'ext.smw.style' );
if ( $this->isJson( $text ) ) {
$result = self::asJson( $text );
} else {
// This disables all active wiki and HTML markup:
$result = str_replace(
[ '<code>', '</code>', '<nowiki>', '</nowiki>', '<', '>', ' ', '[', '{', '=', "'", ':', "\n", '[' ],
[ '', '', '', '', '<', '>', ' ', '[', '{', '=', ''', ':', "<br />", '[' ],
$text
);
}
if ( $abbreviate ) {
$result = "<div style=\"min-height:5em; overflow:auto;\">$result</div>";
}
return "<div class=\"smwpre\">$result</div>";
}
/**
* @since 2.5
*
* @param string $string
*
* @return string
*/
public static function asJson( $string, $flag = 0 ) {
if ( $flag > 0 ) {
return json_encode( json_decode( $string ), $flag );
}
return json_encode( json_decode( $string ), JSON_PRETTY_PRINT | JSON_UNESCAPED_SLASHES | JSON_UNESCAPED_UNICODE );
}
private function isJson( $string ) {
// Don't bother
if ( substr( $string, 0, 1 ) !== '{' ) {
return false;
}
json_decode( $string );
return ( json_last_error() == JSON_ERROR_NONE );
}
}
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