vendor/heck/src/kebab.rs

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