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use unicase::UniCase;
include!("mime_types.rs");
include!(concat!(env!("OUT_DIR"), "/mime_types_generated.rs"));
#[cfg(feature = "rev-mappings")]
#[derive(Copy, Clone)]
struct TopLevelExts {
start: usize,
end: usize,
subs: &'static [(UniCase<&'static str>, (usize, usize))],
}
pub fn get_mime_types(ext: &str) -> Option<&'static [&'static str]> {
let ext = UniCase::new(ext);
map_lookup(MIME_TYPES, &ext)
}
#[cfg(feature = "rev-mappings")]
pub fn get_extensions(toplevel: &str, sublevel: &str) -> Option<&'static [&'static str]> {
if toplevel == "*" {
return Some(EXTS);
}
let top = map_lookup(REV_MAPPINGS, toplevel)?;
if sublevel == "*" {
return Some(&EXTS[top.start..top.end]);
}
let sub = map_lookup(&top.subs, sublevel)?;
Some(&EXTS[sub.0..sub.1])
}
fn map_lookup<K, V>(map: &'static [(K, V)], key: &str) -> Option<V>
where K: Copy + Into<UniCase<&'static str>>, V: Copy {
map.binary_search_by_key(&UniCase::new(key), |(k, _)| (*k).into())
.ok()
.map(|i| map[i].1)
}