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|
/// This trait defines a mixed case conversion.
///
/// In mixedCase, word boundaries are indicated by capital letters, excepting
/// the first word.
///
/// ## Example:
///
/// ```rust
/// extern crate heck;
/// fn main() {
///
/// use heck::MixedCase;
///
/// let sentence = "It is we who built these palaces and cities.";
/// assert_eq!(sentence.to_mixed_case(), "itIsWeWhoBuiltThesePalacesAndCities");
/// }
/// ```
pub trait MixedCase: ToOwned {
/// Convert this type to mixed case.
fn to_mixed_case(&self) -> Self::Owned;
}
impl MixedCase for str {
fn to_mixed_case(&self) -> String {
::transform(self, |s, out| {
if out.is_empty() { ::lowercase(s, out); }
else { ::capitalize(s, out) }
}, |_| {})
}
}
#[cfg(test)]
mod tests {
use super::MixedCase;
macro_rules! t {
($t:ident : $s1:expr => $s2:expr) => {
#[test]
fn $t() {
assert_eq!($s1.to_mixed_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");
// TODO unicode tests
}
|
