blob: 0f846c3a89fa2d84d4067aca7c2145051f8b2dc4 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
|
/// This trait defines a shouty snake case conversion.
///
/// In SHOUTY_SNAKE_CASE, word boundaries are indicated by underscores and all
/// words are in uppercase.
///
/// ## Example:
///
/// ```rust
/// extern crate heck;
/// fn main() {
///
/// use heck::ShoutySnakeCase;
///
/// let sentence = "That world is growing in this minute.";
/// assert_eq!(sentence.to_shouty_snake_case(), "THAT_WORLD_IS_GROWING_IN_THIS_MINUTE");
/// }
/// ```
pub trait ShoutySnakeCase: ToOwned {
/// Convert this type to shouty snake case.
fn to_shouty_snake_case(&self) -> Self::Owned;
}
/// Oh heck, ShoutySnekCase is an alias for ShoutySnakeCase. See ShoutySnakeCase for
/// more documentation.
pub trait ShoutySnekCase: ToOwned {
/// CONVERT THIS TYPE TO SNEK CASE.
#[allow(non_snake_case)]
fn TO_SHOUTY_SNEK_CASE(&self) -> Self::Owned;
}
impl<T: ?Sized + ShoutySnakeCase> ShoutySnekCase for T {
fn TO_SHOUTY_SNEK_CASE(&self) -> Self::Owned {
self.to_shouty_snake_case()
}
}
impl ShoutySnakeCase for str {
fn to_shouty_snake_case(&self) -> Self::Owned {
::transform(self, ::uppercase, |s| s.push('_'))
}
}
#[cfg(test)]
mod tests {
use super::ShoutySnakeCase;
macro_rules! t {
($t:ident : $s1:expr => $s2:expr) => {
#[test]
fn $t() {
assert_eq!($s1.to_shouty_snake_case(), $s2)
}
}
}
t!(test1: "CamelCase" => "CAMEL_CASE");
t!(test2: "This is Human case." => "THIS_IS_HUMAN_CASE");
t!(test3: "MixedUP CamelCase, with some Spaces" => "MIXED_UP_CAMEL_CASE_WITH_SOME_SPACES");
t!(test4: "mixed_up_snake_case with some _spaces" => "MIXED_UP_SNAKE_CASE_WITH_SOME_SPACES");
t!(test5: "kebab-case" => "KEBAB_CASE");
t!(test6: "SHOUTY_SNAKE_CASE" => "SHOUTY_SNAKE_CASE");
t!(test7: "snake_case" => "SNAKE_CASE");
t!(test8: "this-contains_ ALLKinds OfWord_Boundaries" => "THIS_CONTAINS_ALL_KINDS_OF_WORD_BOUNDARIES");
t!(test9: "XΣXΣ baffle" => "XΣXΣ_BAFFLE");
t!(test10: "XMLHttpRequest" => "XML_HTTP_REQUEST");
}
|
