1use unicase::UniCase;
2
3include!("mime_types.rs");
4include!(env!("MIME_TYPES_GENERATED_PATH"));
5
6#[cfg(feature = "rev-mappings")]
7#[derive(Copy, Clone)]
8struct TopLevelExts {
9 start: usize,
10 end: usize,
11 subs: &'static [(UniCase<&'static str>, (usize, usize))],
12}
13
14pub fn get_mime_types(ext: &str) -> Option<&'static [&'static str]> {
15 let ext: UniCase<&str> = UniCase::new(ext);
16
17 map_lookup(map:MIME_TYPES, &ext)
18}
19
20#[cfg(feature = "rev-mappings")]
21pub fn get_extensions(toplevel: &str, sublevel: &str) -> Option<&'static [&'static str]> {
22 if toplevel == "*" {
23 return Some(EXTS);
24 }
25
26 let top: TopLevelExts = map_lookup(map:REV_MAPPINGS, key:toplevel)?;
27
28 if sublevel == "*" {
29 return Some(&EXTS[top.start..top.end]);
30 }
31
32 let sub: (usize, usize) = map_lookup(&top.subs, key:sublevel)?;
33 Some(&EXTS[sub.0..sub.1])
34}
35
36fn map_lookup<K, V>(map: &'static [(K, V)], key: &str) -> Option<V>
37 where K: Copy + Into<UniCase<&'static str>>, V: Copy {
38 mapOption.binary_search_by_key(&UniCase::new(key), |(k: &K, _)| (*k).into())
39 .ok()
40 .map(|i: usize| map[i].1)
41}
42