1use crate::EnglishCore;
2impl EnglishCore {
3 pub fn pair_match(word: &str, listik: &[(&str, &str)]) -> Option<String> {
4 listik
5 .iter()
6 .find(|(sing, _)| *sing == word)
7 .map(|(_, plur)| plur.to_string())
8 }
9
10 pub fn replace_last_occurence(input: &str, pattern: &str, replacement: &str) -> String {
11 if let Some(last_index) = input.rfind(pattern) {
12 let (before_last, _after_last) = input.split_at(last_index);
13 format!("{}{}", before_last, replacement)
14 } else {
15 input.into()
16 }
17 }
18 pub fn iter_replace_last(word: &str, pairs: &[(&str, &str)]) -> Option<String> {
19 for (sing, plur) in pairs {
20 if word.ends_with(sing) {
21 return Some(EnglishCore::replace_last_occurence(word, sing, plur));
22 }
23 }
24 None
25 }
26
27 pub fn starts_with_uppercase(word: &str) -> bool {
28 word.chars()
29 .next()
30 .map(|c| c.is_uppercase())
31 .unwrap_or(false)
32 }
33}