insideout10 / wordlift-plugin

	 *

	 * @return string The escaped value.

	 */

	public static function escape_value( $value ) {

		// see http://www.w3.org/TR/rdf-sparql-query/

		//    '\t'	U+0009 (tab)

		//    '\n'	U+000A (line feed)

		//    '\r'	U+000D (carriage return)

		//    '\b'	U+0008 (backspace)

		//    '\f'	U+000C (form feed)

		//    '\"'	U+0022 (quotation mark, double quote mark)

		//    "\'"	U+0027 (apostrophe-quote, single quote mark)

		//    '\\'	U+005C (backslash)

		$escaped_value = str_replace( '\\', '\\\\', $value );

		$escaped_value = str_replace( '\'', '\\\'', $escaped_value );

		$escaped_value = str_replace( '"', '\\"', $escaped_value );

		$escaped_value = str_replace( "\f", '\\f', $escaped_value );

		$escaped_value = str_replace( "\b", '\\b', $escaped_value );

		$escaped_value = str_replace( "\r", '\\r', $escaped_value );

		$escaped_value = str_replace( "\n", '\\n', $escaped_value );

		$escaped_value = str_replace( "\t", '\\t', $escaped_value );

		return $escaped_value;

	}

}

	 *

	 * @return string The escaped string.

	 */

	public function escape( $string ) {

		// see http://www.w3.org/TR/rdf-sparql-query/

		//    '\t'	U+0009 (tab)

		//    '\n'	U+000A (line feed)

		//    '\r'	U+000D (carriage return)

		//    '\b'	U+0008 (backspace)

		//    '\f'	U+000C (form feed)

		//    '\"'	U+0022 (quotation mark, double quote mark)

		//    "\'"	U+0027 (apostrophe-quote, single quote mark)

		//    '\\'	U+005C (backslash)

		$string = str_replace( '\\', '\\\\', $string );

		$string = str_replace( '\'', '\\\'', $string );

		$string = str_replace( '"', '\\"', $string );

		$string = str_replace( "\f", '\\f', $string );

		$string = str_replace( "\b", '\\b', $string );

		$string = str_replace( "\r", '\\r', $string );

		$string = str_replace( "\n", '\\n', $string );

		$string = str_replace( "\t", '\\t', $string );

		return $string;

	}

}