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use std::ops::Range;
pub trait Slice<'s>: AsRef<str> + Clone + PartialEq {
fn slice(&self, range: Range<usize>) -> Self;
fn trim(&mut self);
}
impl<'s> Slice<'s> for String {
fn slice(&self, range: Range<usize>) -> Self {
self[range].to_string()
}
fn trim(&mut self) {
*self = self.trim_end().to_string();
}
}
impl<'s> Slice<'s> for &'s str {
fn slice(&self, range: Range<usize>) -> Self {
&self[range]
}
fn trim(&mut self) {
*self = self.trim_end();
}
}