remove_to<'s>(s: &'s str, c: char) -> &'s str1 pub fn remove_to<'s>(s: &'s str, c: char) -> &'s str {
2 match s.rfind(c) {
3 Some(pos) => &s[(pos + 1)..],
4 None => s,
5 }
6 }
7
remove_suffix<'s>(s: &'s str, suffix: &str) -> &'s str8 pub fn remove_suffix<'s>(s: &'s str, suffix: &str) -> &'s str {
9 if !s.ends_with(suffix) {
10 s
11 } else {
12 &s[..(s.len() - suffix.len())]
13 }
14 }
15
16 #[cfg(test)]
17 mod test {
18
19 use super::remove_suffix;
20 use super::remove_to;
21
22 #[test]
test_remove_to()23 fn test_remove_to() {
24 assert_eq!("aaa", remove_to("aaa", '.'));
25 assert_eq!("bbb", remove_to("aaa.bbb", '.'));
26 assert_eq!("ccc", remove_to("aaa.bbb.ccc", '.'));
27 }
28
29 #[test]
test_remove_suffix()30 fn test_remove_suffix() {
31 assert_eq!("bbb", remove_suffix("bbbaaa", "aaa"));
32 assert_eq!("aaa", remove_suffix("aaa", "bbb"));
33 }
34 }
35