vendor/heck/src/kebab.rs

   1 /// This trait defines a kebab case conversion.
   2 ///
   3 /// In kebab-case, word boundaries are indicated by hyphens.
   4 ///
   5 /// ## Example:
   6 ///
   7 /// ```rust
   8 /// extern crate heck;
   9 /// fn main() {
  10 ///
  11 ///     use heck::KebabCase;
  12 ///
  13 ///     let sentence = "We are going to inherit the earth.";
  14 ///     assert_eq!(sentence.to_kebab_case(), "we-are-going-to-inherit-the-earth");
  15 /// }
  16 /// ```
  17 pub trait KebabCase: ToOwned {
  18     /// Convert this type to kebab case.
  19     fn to_kebab_case(&self) -> Self::Owned;
  20 }
  21
  22 impl KebabCase for str {
  23     fn to_kebab_case(&self) -> Self::Owned {
  24         ::transform(self, ::lowercase, |s| s.push('-'))
  25     }
  26 }
  27
  28 #[cfg(test)]
  29 mod tests {
  30     use super::KebabCase;
  31
  32     macro_rules! t {
  33         ($t:ident : $s1:expr => $s2:expr) => {
  34             #[test]
  35             fn $t() {
  36                 assert_eq!($s1.to_kebab_case(), $s2)
  37             }
  38         }
  39     }
  40
  41     t!(test1: "CamelCase" => "camel-case");
  42     t!(test2: "This is Human case." => "this-is-human-case");
  43     t!(test3: "MixedUP CamelCase, with some Spaces" => "mixed-up-camel-case-with-some-spaces");
  44     t!(test4: "mixed_up_ snake_case with some _spaces" => "mixed-up-snake-case-with-some-spaces");
  45     t!(test5: "kebab-case" => "kebab-case");
  46     t!(test6: "SHOUTY_SNAKE_CASE" => "shouty-snake-case");
  47     t!(test7: "snake_case" => "snake-case");
  48     t!(test8: "this-contains_ ALLKinds OfWord_Boundaries" => "this-contains-all-kinds-of-word-boundaries");
  49     t!(test9: "XΣXΣ baﬄe" => "xσxς-baﬄe");
  50     t!(test10: "XMLHttpRequest" => "xml-http-request");
  51 }