1 files changed, 52 insertions, 0 deletions

diff --git a/heck/src/camel.rs b/heck/src/camel.rs
new file mode 100644
index 0000000..74bd741
--- /dev/null
+++ b/heck/src/camel.rs
@@ -0,0 +1,52 @@
+/// This trait defines a camel case conversion.
+///
+/// In CamelCase, word boundaries are indicated by capital letters, including
+/// the first word.
+///
+/// ## Example:
+///
+/// ```rust
+/// extern crate heck;
+/// fn main() {
+///     
+///     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");
+}