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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-18 02:49:50 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-18 02:49:50 +0000 |
commit | 9835e2ae736235810b4ea1c162ca5e65c547e770 (patch) | |
tree | 3fcebf40ed70e581d776a8a4c65923e8ec20e026 /vendor/heck/src/train.rs | |
parent | Releasing progress-linux version 1.70.0+dfsg2-1~progress7.99u1. (diff) | |
download | rustc-9835e2ae736235810b4ea1c162ca5e65c547e770.tar.xz rustc-9835e2ae736235810b4ea1c162ca5e65c547e770.zip |
Merging upstream version 1.71.1+dfsg1.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'vendor/heck/src/train.rs')
-rw-r--r-- | vendor/heck/src/train.rs | 85 |
1 files changed, 85 insertions, 0 deletions
diff --git a/vendor/heck/src/train.rs b/vendor/heck/src/train.rs new file mode 100644 index 000000000..04dd6a996 --- /dev/null +++ b/vendor/heck/src/train.rs @@ -0,0 +1,85 @@ +use std::fmt; + +use crate::{capitalize, transform}; + +/// This trait defines a train case conversion. +/// +/// In Train-Case, word boundaries are indicated by hyphens and words start +/// with Capital Letters. +/// +/// ## Example: +/// +/// ```rust +/// use heck::ToTrainCase; +/// +/// let sentence = "We are going to inherit the earth."; +/// assert_eq!(sentence.to_train_case(), "We-Are-Going-To-Inherit-The-Earth"); +/// ``` +pub trait ToTrainCase: ToOwned { + /// Convert this type to Train-Case. + fn to_train_case(&self) -> Self::Owned; +} + +impl ToTrainCase for str { + fn to_train_case(&self) -> Self::Owned { + AsTrainCase(self).to_string() + } +} + +/// This wrapper performs a train case conversion in [`fmt::Display`]. +/// +/// ## Example: +/// +/// ``` +/// use heck::AsTrainCase; +/// +/// let sentence = "We are going to inherit the earth."; +/// assert_eq!(format!("{}", AsTrainCase(sentence)), "We-Are-Going-To-Inherit-The-Earth"); +/// ``` +pub struct AsTrainCase<T: AsRef<str>>(pub T); + +impl<T: AsRef<str>> fmt::Display for AsTrainCase<T> { + fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result { + transform(self.0.as_ref(), capitalize, |f| write!(f, "-"), f) + } +} + +#[cfg(test)] +mod tests { + use super::ToTrainCase; + + macro_rules! t { + ($t:ident : $s1:expr => $s2:expr) => { + #[test] + fn $t() { + assert_eq!($s1.to_train_case(), $s2) + } + }; + } + + t!(test1: "CamelCase" => "Camel-Case"); + t!(test2: "This is Human case." => "This-Is-Human-Case"); + t!(test3: "MixedUP CamelCase, with some Spaces" => "Mixed-Up-Camel-Case-With-Some-Spaces"); + t!(test4: "mixed_up_ snake_case with some _spaces" => "Mixed-Up-Snake-Case-With-Some-Spaces"); + t!(test5: "kebab-case" => "Kebab-Case"); + t!(test6: "SHOUTY_SNAKE_CASE" => "Shouty-Snake-Case"); + t!(test7: "snake_case" => "Snake-Case"); + t!(test8: "this-contains_ ALLKinds OfWord_Boundaries" => "This-Contains-All-Kinds-Of-Word-Boundaries"); + #[cfg(feature = "unicode")] + t!(test9: "XΣXΣ baffle" => "Xσxς-Baffle"); + t!(test10: "XMLHttpRequest" => "Xml-Http-Request"); + t!(test11: "FIELD_NAME11" => "Field-Name11"); + t!(test12: "99BOTTLES" => "99bottles"); + t!(test13: "FieldNamE11" => "Field-Nam-E11"); + t!(test14: "abc123def456" => "Abc123def456"); + t!(test16: "abc123DEF456" => "Abc123-Def456"); + t!(test17: "abc123Def456" => "Abc123-Def456"); + t!(test18: "abc123DEf456" => "Abc123-D-Ef456"); + t!(test19: "ABC123def456" => "Abc123def456"); + t!(test20: "ABC123DEF456" => "Abc123def456"); + t!(test21: "ABC123Def456" => "Abc123-Def456"); + t!(test22: "ABC123DEf456" => "Abc123d-Ef456"); + t!(test23: "ABC123dEEf456FOO" => "Abc123d-E-Ef456-Foo"); + t!(test24: "abcDEF" => "Abc-Def"); + t!(test25: "ABcDE" => "A-Bc-De"); +} |