docs: function parseMultiLineExpression( str , runtime , applicable ) {
  	runtime.i += 2 ;
  	if ( applicable ) { runtime.i ++ ; }
  
  	// If the parent is still undefined, now we know for sure that this is a string
  	// Expression are always folded
  	setCurrentMultiLine( runtime , 'Expression' , true , applicable , runtime.operators ) ;
  	//runtime.depth ++ ;
  	increaseDepth( runtime ) ;
  
  	if ( runtime.i >= runtime.iEndOfLine ) {
  		appendParentMultiLine( '' , runtime ) ;
  		return ;
  	}
  
  	if ( str[ runtime.i ] !== ' ' ) {
  		throw new SyntaxError( "Expecting a space ' ' after the '$=' or '$$=', but got '" + str[ runtime.i ] + "' (" + common.parsers.locationStr( runtime ) + ")" ) ;
  	}
  
  	runtime.i ++ ;
  
  	if ( runtime.i >= runtime.iEndOfLine ) {
  		appendParentMultiLine( '' , runtime ) ;
  		return ;
  	}
  
  	appendParentMultiLine( str.slice( runtime.i , runtime.iEndOfLine ) , runtime ) ;
  }