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fmt: simplify parse_parameter

This commit is contained in:
Andrew Paseltiner 2013-01-07 14:47:06 -05:00
parent 4550cb0562
commit af298deff7
1 changed files with 5 additions and 11 deletions
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16
src/libcore/extfmt.rs
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@ -229,17 +229,11 @@ pub mod ct {
pub fn parse_parameter(s: &str, i: uint, lim: uint) ->
Parsed<Option<uint>> {
if i >= lim { return Parsed::new(None, i); }
let num = peek_num(s, i, lim);
return match num {
None => Parsed::new(None, i),
Some(t) => {
let n = t.val;
let j = t.next;
if j < lim && s[j] == '$' as u8 {
Parsed::new(Some(n), j + 1)
} else { Parsed::new(None, i) }
}
};
match peek_num(s, i, lim) {
Some(num) if num.next < lim && s[num.next] == '$' as u8 =>
Parsed::new(Some(num.val), num.next + 1),
_ => Parsed::new(None, i)
}
}
pub fn parse_flags(s: &str, i: uint, lim: uint) ->
Parsed<~[Flag]> {