| use crate::{capitalize, transform}; |
| |
| /// This trait defines a camel case conversion. |
| /// |
| /// In CamelCase, word boundaries are indicated by capital letters, including |
| /// the first word. |
| /// |
| /// ## Example: |
| /// |
| /// ```rust |
| /// use heck::CamelCase; |
| /// |
| /// let sentence = "We are not in the least afraid of ruins."; |
| /// assert_eq!(sentence.to_camel_case(), "WeAreNotInTheLeastAfraidOfRuins"); |
| /// ``` |
| pub trait CamelCase: ToOwned { |
| /// Convert this type to camel case. |
| fn to_camel_case(&self) -> Self::Owned; |
| } |
| |
| impl CamelCase for str { |
| fn to_camel_case(&self) -> String { |
| transform(self, capitalize, |_| {}) |
| } |
| } |
| |
| #[cfg(test)] |
| mod tests { |
| use super::CamelCase; |
| |
| macro_rules! t { |
| ($t:ident : $s1:expr => $s2:expr) => { |
| #[test] |
| fn $t() { |
| assert_eq!($s1.to_camel_case(), $s2) |
| } |
| }; |
| } |
| |
| t!(test1: "CamelCase" => "CamelCase"); |
| t!(test2: "This is Human case." => "ThisIsHumanCase"); |
| t!(test3: "MixedUP_CamelCase, with some Spaces" => "MixedUpCamelCaseWithSomeSpaces"); |
| t!(test4: "mixed_up_ snake_case, with some _spaces" => "MixedUpSnakeCaseWithSomeSpaces"); |
| t!(test5: "kebab-case" => "KebabCase"); |
| t!(test6: "SHOUTY_SNAKE_CASE" => "ShoutySnakeCase"); |
| t!(test7: "snake_case" => "SnakeCase"); |
| t!(test8: "this-contains_ ALLKinds OfWord_Boundaries" => "ThisContainsAllKindsOfWordBoundaries"); |
| t!(test9: "XΣXΣ baffle" => "XσxςBaffle"); |
| t!(test10: "XMLHttpRequest" => "XmlHttpRequest"); |
| } |