src/syntax_mapping.rs · bat

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bat/src/syntax_mapping.rs

35 lines 936 B history raw

1use std::borrow::Cow;

2use std::collections::HashMap;

4#[derive(Debug, Clone)]

5pub struct SyntaxMapping(HashMap<String, String>);

7impl SyntaxMapping {

8 pub fn new() -> SyntaxMapping {

9 SyntaxMapping(HashMap::new())

10 }

12 pub fn insert(&mut self, from: impl Into<String>, to: impl Into<String>) -> Option<String> {

13 self.0.insert(from.into(), to.into())

14 }

16 pub fn replace<'a>(&self, input: impl Into<Cow<'a, str>>) -> Cow<'a, str> {

17 let input = input.into();

18 match self.0.get(input.as_ref()) {

19 Some(s) => Cow::from(s.clone()),

20 None => input,

21 }

22 }

25#[test]

26fn basic() {

27 let mut map = SyntaxMapping::new();

28 map.insert("Cargo.lock", "toml");

29 map.insert(".ignore", ".gitignore");

31 assert_eq!("toml", map.replace("Cargo.lock"));

32 assert_eq!("other.lock", map.replace("other.lock"));

34 assert_eq!(".gitignore", map.replace(".ignore"));