5 pub type ParseResult<T> = Result<T, ()>;
11 pub fn colon_or_space(s: &str) -> ParseResult<&str> {
15 pub fn timezone_offset_zulu<F>(s: &str, colon: F) -> ParseResult<(&str, i32)>
16 where F: FnMut(&str) -> ParseResult<&str> {
20 pub fn parse<'a, I>(mut s: &str, items: I) -> ParseResult<()>
21 where I: Iterator<Item=Item<'a>> {
22 macro_rules! try_consume {
23 ($e:expr) => ({ let (s_, v) = try!($e); s = s_; v })
25 let offset = try_consume!(timezone_offset_zulu(s.trim_start(), colon_or_space));
26 let offset = try_consume!(timezone_offset_zulu(s.trim_start(), colon_or_space));