| 1 | use unicase::UniCase; |
|---|---|
| 2 | |
| 3 | include!("mime_types.rs"); |
| 4 | include!(env!("MIME_TYPES_GENERATED_PATH")); |
| 5 | |
| 6 | #[cfg(feature = "rev-mappings")] |
| 7 | #[derive(Copy, Clone)] |
| 8 | struct TopLevelExts { |
| 9 | start: usize, |
| 10 | end: usize, |
| 11 | subs: &'static [(UniCase<&'static str>, (usize, usize))], |
| 12 | } |
| 13 | |
| 14 | pub 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")] |
| 21 | pub 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 | |
| 36 | fn map_lookup<K, V>(map: &'static [(K, V)], key: &str) -> Option<V> |
| 37 | where K: Copy + Into<UniCase<&'static str>>, V: Copy { |
| 38 | mapOption |
| 39 | .ok() |
| 40 | .map(|i: usize| map[i].1) |
| 41 | } |
| 42 |