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Use split_once polyfill

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This commit is contained in:
Aleksey Kladov 2020-07-30 22:19:58 +02:00
parent 239dd506f6
commit be49547b44
5 changed files with 30 additions and 22 deletions
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15
crates/stdx/src/lib.rs
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@ -109,9 +109,18 @@ pub fn replace(buf: &mut String, from: char, to: &str) {
*buf = buf.replace(from, to)
}
pub fn split_delim(haystack: &str, delim: char) -> Option<(&str, &str)> {
let idx = haystack.find(delim)?;
Some((&haystack[..idx], &haystack[idx + delim.len_utf8()..]))
// https://github.com/rust-lang/rust/issues/74773
pub fn split_once(haystack: &str, delim: char) -> Option<(&str, &str)> {
let mut split = haystack.splitn(2, delim);
let prefix = split.next()?;
let suffix = split.next()?;
Some((prefix, suffix))
}
pub fn rsplit_once(haystack: &str, delim: char) -> Option<(&str, &str)> {
let mut split = haystack.rsplitn(2, delim);
let suffix = split.next()?;
let prefix = split.next()?;
Some((prefix, suffix))
}
pub fn trim_indent(mut text: &str) -> String {