1 files changed, 131 insertions, 0 deletions
diff --git a/www/wiki/extensions/SemanticMediaWiki/src/DataValues/ValueFormatters/StringValueFormatter.php b/www/wiki/extensions/SemanticMediaWiki/src/DataValues/ValueFormatters/StringValueFormatter.php
new file mode 100644
index 00000000..d55ad620
--- /dev/null
+++ b/www/wiki/extensions/SemanticMediaWiki/src/DataValues/ValueFormatters/StringValueFormatter.php
@@ -0,0 +1,131 @@
+<?php
+
+namespace SMW\DataValues\ValueFormatters;
+
+use RuntimeException;
+use SMW\DataValues\StringValue;
+use SMW\Highlighter;
+use SMW\Utils\Normalizer;
+use SMWDataValue as DataValue;
+
+/**
+ * @license GNU GPL v2+
+ * @since 2.4
+ *
+ * @author mwjames
+ */
+class StringValueFormatter extends DataValueFormatter {
+
+	/**
+	 * @since 2.4
+	 *
+	 * {@inheritDoc}
+	 */
+	public function isFormatterFor( DataValue $dataValue ) {
+		return $dataValue instanceof StringValue;
+	}
+
+	/**
+	 * @since 2.4
+	 *
+	 * {@inheritDoc}
+	 */
+	public function format( $dataValue, $options = null ) {
+
+		if ( !is_array( $options ) ) {
+			throw new RuntimeException( "Option is not an array!" );
+		}
+
+		// Normally we would do `list( $type, $linker ) = $options;` BUT due to
+		// PHP 7.0 ... "The order that the assignment operations are performed in has changed."
+
+		$type = $options[0];
+		$linker = isset( $options[1] ) ? $options[1] : null;
+
+		if ( !$dataValue instanceof StringValue ) {
+			throw new RuntimeException( "The formatter is missing a valid StringValue object" );
+		}
+
+		if ( $type === self::VALUE ) {
+			return $dataValue->isValid() ? $dataValue->getDataItem()->getString() : 'error';
+		}
+
+		if ( $dataValue->getCaption() !== false && $type === self::WIKI_SHORT ) {
+			return $dataValue->getCaption();
+		}
+
+		if ( $dataValue->getCaption() !== false && $type === self::HTML_SHORT ) {
+			return smwfXMLContentEncode( $dataValue->getCaption() );
+		}
+
+		if ( !$dataValue->isValid() ) {
+			return $dataValue->getDataItem()->getUserValue();
+		}
+
+		return $this->doFormat( $dataValue, $type, $linker );
+	}
+
+	protected function doFormat( $dataValue, $type, $linker ) {
+
+		$text = $dataValue->getDataItem()->getString();
+		$length = mb_strlen( $text );
+
+		// Make a possibly shortened printout string for displaying the value.
+		// The result is only escaped to be HTML-safe if this is requested
+		// explicitly. The result will contain mark-up that must not be escaped
+		// again.
+		$abbreviate = $type === self::WIKI_LONG || $type === self::HTML_LONG;
+		$requestedLength = intval( $dataValue->getOutputFormat() );
+
+		// Appease the MW parser to correctly apply formatting on the
+		// first indent
+		if ( $text !== '' && ( $text{0} === '*' || $text{0} === '#' || $text{0} === ':' ) ) {
+			$text = "\n" . $text . "\n";
+		}
+
+		if ( $requestedLength > 0 && $requestedLength < $length ) {
+			// Reduces the length and finish it with a whole word
+			return Normalizer::reduceLengthTo( $text, $requestedLength ) . ' …';
+		}
+
+		if ( $type === self::HTML_SHORT || $type === self::HTML_LONG ) {
+			$text = smwfXMLContentEncode( $text );
+		}
+
+		if ( $abbreviate && $length > 255 ) {
+			$text = $this->getAbbreviatedText( $text, $length, $linker );
+		}
+
+		return $text;
+	}
+
+	private function getAbbreviatedText( $text, $length, $linker ) {
+
+		if ( $linker === false || $linker === null ) {
+			$ellipsis = ' <span class="smwwarning">…</span> ';
+		} else {
+			$highlighter = Highlighter::factory( Highlighter::TYPE_TEXT );
+			$highlighter->setContent(  [
+				'caption' => ' … ',
+				'content' => $text
+			] );
+
+			$ellipsis = $highlighter->getHtml();
+		}
+
+		$startOff = 42;
+		$endOff = 42;
+
+		// Avoid breaking a link (i.e. [[ ... ]])
+		if ( ( $pos = stripos ( $text, '[[' ) ) && $pos < 42 ) {
+			$startOff = stripos ( $text, ']]' ) + 2;
+		}
+
+		if ( ( $pos = strrpos ( $text, ']]' ) ) && $pos > $length - $endOff ) {
+			$endOff = $length - strrpos( $text, '[[' );
+		}
+
+		return mb_substr( $text, 0, $startOff ) . $ellipsis . mb_substr( $text, $length - $endOff );
+	}
+
+}