ECalBackendSExp Regular expressions for calendar searches. @text: @Returns: @sexp: @Returns: @sexp: @object: @backend: @Returns: @sexp: @comp: @backend: @Returns: @esexp: @argc: @argv: @data: @Returns: @esexp: @argc: @argv: @data: @Returns: @esexp: @argc: @argv: @data: @Returns: @esexp: @argc: @argv: @data: @Returns: @esexp: @argc: @argv: @data: @Returns: