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Initial vendor packages

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Signed-off-by: Valentin Popov <valentin@popov.link>
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Valentin Popov
2024-01-08 01:21:28 +04:00
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{"files":{"CHANGELOG.md":"be2b711f318b4447b7c0fa067ac1804dff0b01894d2782722646910a6b2c4b10","Cargo.toml":"bef2e967708cafccb70a6de0f2eeed8914f9a58c1fc9094cf0e6bde671768f7b","LICENSE-APACHE":"a60eea817514531668d7e00765731449fe14d059d3249e0bc93b36de45f759f2","LICENSE-MIT":"7b63ecd5f1902af1b63729947373683c32745c16a10e8e6292e2e2dcd7e90ae0","README.md":"a53c56a404fa7b97e4a5426798430186e715fcf38480327d42700494cae70f76","src/kebab.rs":"f2a4900541fe36584b0705108f5f1d23501bcb3429fffe04106077baecc6dc5a","src/lib.rs":"6cf5759deb604eb1035061ed52c1f71a629ac3fa6faefecceeb9d3cb9f4a9919","src/lower_camel.rs":"24a3ea7ce7f765b27fb0adec207498569f27045edc56c9089ae05fc428c54d5f","src/shouty_kebab.rs":"4516fbb2295c400869221912257828c90e7c0d43f3bdf4aaefb6d384606f4866","src/shouty_snake.rs":"01b8c1e7ac5e680827e2744e62bf4704fc7ebd0d555c5b040bca5f5fb50e4ffd","src/snake.rs":"fc69443dd1a9248667484d5feb52911a1c6dfed1442b01b5b23e371c5b716a5e","src/title.rs":"0cc0b3014559ab6047ed9e7afb624bbe97014a4498297a4c3b28f3410b75d1dc","src/train.rs":"6d20c7153b2e574653c57d039a5077c707c4f15e5b8be765bd5042a4dabc32d4","src/upper_camel.rs":"9cb094ade94cf6212a4b6e491b0fdad92ad8fbb0d55095c70691f9d66ce25366"},"package":"95505c38b4572b2d910cecb0281560f54b440a19336cbbcb27bf6ce6adc6f5a8"}

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# 0.4.1
Improvements:
- Add Train-Case support
# 0.4.0
Breaking changes:
* Make unicode support optional (off by default). Enable the `unicode` crate
feature if you need unicode support.
* Rename all traits from `SomeCase` to `ToSomeCase`, matching `std`s convention
of beginning trait names with a verb (`ToOwned`, `AsRef`, …)
* Rename `ToMixedCase` to `ToLowerCamelCase`
* Rename `ToCamelCase` to `ToUpperCamelCase`
* Add `ToPascalCase` as an alias to `ToUpperCamelCase`

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# THIS FILE IS AUTOMATICALLY GENERATED BY CARGO
#
# When uploading crates to the registry Cargo will automatically
# "normalize" Cargo.toml files for maximal compatibility
# with all versions of Cargo and also rewrite `path` dependencies
# to registry (e.g., crates.io) dependencies.
#
# If you are reading this file be aware that the original Cargo.toml
# will likely look very different (and much more reasonable).
# See Cargo.toml.orig for the original contents.
[package]
edition = "2018"
name = "heck"
version = "0.4.1"
authors = ["Without Boats <woboats@gmail.com>"]
include = [
"src/**/*",
"LICENSE-*",
"README.md",
"CHANGELOG.md",
]
description = "heck is a case conversion library."
homepage = "https://github.com/withoutboats/heck"
documentation = "https://docs.rs/heck"
readme = "README.md"
keywords = [
"string",
"case",
"camel",
"snake",
"unicode",
]
license = "MIT OR Apache-2.0"
repository = "https://github.com/withoutboats/heck"
[dependencies.unicode-segmentation]
version = "1.2.0"
optional = true
[features]
default = []
unicode = ["unicode-segmentation"]

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Copyright (c) 2015 The Rust Project Developers
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# **heck** is a case conversion library
!["I specifically requested the opposite of this."](./no_step_on_snek.png)
This library exists to provide case conversion between common cases like
CamelCase and snake_case. It is intended to be unicode aware, internally
consistent, and reasonably well performing.
## Definition of a word boundary
Word boundaries are defined as the "unicode words" defined in the
`unicode_segmentation` library, as well as within those words in this manner:
1. All underscore characters are considered word boundaries.
2. If an uppercase character is followed by lowercase letters, a word boundary
is considered to be just prior to that uppercase character.
3. If multiple uppercase characters are consecutive, they are considered to be
within a single word, except that the last will be part of the next word if it
is followed by lowercase characters (see rule 2).
That is, "HelloWorld" is segmented `Hello|World` whereas "XMLHttpRequest" is
segmented `XML|Http|Request`.
Characters not within words (such as spaces, punctuations, and underscores)
are not included in the output string except as they are a part of the case
being converted to. Multiple adjacent word boundaries (such as a series of
underscores) are folded into one. ("hello__world" in snake case is therefore
"hello_world", not the exact same string). Leading or trailing word boundary
indicators are dropped, except insofar as CamelCase capitalizes the first word.
## Cases contained in this library:
1. UpperCamelCase
2. lowerCamelCase
3. snake_case
4. kebab-case
5. SHOUTY_SNAKE_CASE
6. Title Case
7. SHOUTY-KEBAB-CASE
8. Train-Case
## Contributing
PRs of additional well-established cases welcome.
This library is a little bit opinionated (dropping punctuation, for example).
If that doesn't fit your use case, I hope there is another crate that does. I
would prefer **not** to receive PRs to make this behavior more configurable.
Bug reports & fixes always welcome. :-)
## MSRV
The minimum supported Rust version for this crate is 1.32.0. This may change in
minor or patch releases, but we probably won't ever require a very recent
version. If you would like to have a stronger guarantee than that, please open
an issue.
## License
heck is distributed under the terms of both the MIT license and the
Apache License (Version 2.0).
See LICENSE-APACHE and LICENSE-MIT for details.

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use std::fmt;
use crate::{lowercase, transform};
/// This trait defines a kebab case conversion.
///
/// In kebab-case, word boundaries are indicated by hyphens.
///
/// ## Example:
///
/// ```rust
/// use heck::ToKebabCase;
///
/// let sentence = "We are going to inherit the earth.";
/// assert_eq!(sentence.to_kebab_case(), "we-are-going-to-inherit-the-earth");
/// ```
pub trait ToKebabCase: ToOwned {
/// Convert this type to kebab case.
fn to_kebab_case(&self) -> Self::Owned;
}
impl ToKebabCase for str {
fn to_kebab_case(&self) -> Self::Owned {
AsKebabCase(self).to_string()
}
}
/// This wrapper performs a kebab case conversion in [`fmt::Display`].
///
/// ## Example:
///
/// ```
/// use heck::AsKebabCase;
///
/// let sentence = "We are going to inherit the earth.";
/// assert_eq!(format!("{}", AsKebabCase(sentence)), "we-are-going-to-inherit-the-earth");
/// ```
pub struct AsKebabCase<T: AsRef<str>>(pub T);
impl<T: AsRef<str>> fmt::Display for AsKebabCase<T> {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
transform(self.0.as_ref(), lowercase, |f| write!(f, "-"), f)
}
}
#[cfg(test)]
mod tests {
use super::ToKebabCase;
macro_rules! t {
($t:ident : $s1:expr => $s2:expr) => {
#[test]
fn $t() {
assert_eq!($s1.to_kebab_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");
}

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//! **heck** is a case conversion library.
//!
//! This library exists to provide case conversion between common cases like
//! CamelCase and snake_case. It is intended to be unicode aware, internally
//! consistent, and reasonably well performing.
//!
//! ## Definition of a word boundary
//!
//! Word boundaries are defined as the "unicode words" defined in the
//! `unicode_segmentation` library, as well as within those words in this
//! manner:
//!
//! 1. All underscore characters are considered word boundaries.
//! 2. If an uppercase character is followed by lowercase letters, a word
//! boundary is considered to be just prior to that uppercase character.
//! 3. If multiple uppercase characters are consecutive, they are considered to
//! be within a single word, except that the last will be part of the next word
//! if it is followed by lowercase characters (see rule 2).
//!
//! That is, "HelloWorld" is segmented `Hello|World` whereas "XMLHttpRequest" is
//! segmented `XML|Http|Request`.
//!
//! Characters not within words (such as spaces, punctuations, and underscores)
//! are not included in the output string except as they are a part of the case
//! being converted to. Multiple adjacent word boundaries (such as a series of
//! underscores) are folded into one. ("hello__world" in snake case is therefore
//! "hello_world", not the exact same string). Leading or trailing word boundary
//! indicators are dropped, except insofar as CamelCase capitalizes the first
//! word.
//!
//! ### Cases contained in this library:
//!
//! 1. UpperCamelCase
//! 2. lowerCamelCase
//! 3. snake_case
//! 4. kebab-case
//! 5. SHOUTY_SNAKE_CASE
//! 6. Title Case
//! 7. SHOUTY-KEBAB-CASE
//! 8. Train-Case
#![deny(missing_docs)]
#![forbid(unsafe_code)]
mod kebab;
mod lower_camel;
mod shouty_kebab;
mod shouty_snake;
mod snake;
mod title;
mod train;
mod upper_camel;
pub use kebab::{AsKebabCase, ToKebabCase};
pub use lower_camel::{AsLowerCamelCase, ToLowerCamelCase};
pub use shouty_kebab::{AsShoutyKebabCase, ToShoutyKebabCase};
pub use shouty_snake::{
AsShoutySnakeCase, AsShoutySnakeCase as AsShoutySnekCase, ToShoutySnakeCase, ToShoutySnekCase,
};
pub use snake::{AsSnakeCase, AsSnakeCase as AsSnekCase, ToSnakeCase, ToSnekCase};
pub use title::{AsTitleCase, ToTitleCase};
pub use train::{AsTrainCase, ToTrainCase};
pub use upper_camel::{
AsUpperCamelCase, AsUpperCamelCase as AsPascalCase, ToPascalCase, ToUpperCamelCase,
};
use std::fmt;
#[cfg(feature = "unicode")]
fn get_iterator(s: &str) -> unicode_segmentation::UnicodeWords {
use unicode_segmentation::UnicodeSegmentation;
s.unicode_words()
}
#[cfg(not(feature = "unicode"))]
fn get_iterator(s: &str) -> impl Iterator<Item = &str> {
s.split(|letter: char| !letter.is_ascii_alphanumeric())
}
fn transform<F, G>(
s: &str,
mut with_word: F,
mut boundary: G,
f: &mut fmt::Formatter,
) -> fmt::Result
where
F: FnMut(&str, &mut fmt::Formatter) -> fmt::Result,
G: FnMut(&mut fmt::Formatter) -> fmt::Result,
{
/// Tracks the current 'mode' of the transformation algorithm as it scans
/// the input string.
///
/// The mode is a tri-state which tracks the case of the last cased
/// character of the current word. If there is no cased character
/// (either lowercase or uppercase) since the previous word boundary,
/// than the mode is `Boundary`. If the last cased character is lowercase,
/// then the mode is `Lowercase`. Othertherwise, the mode is
/// `Uppercase`.
#[derive(Clone, Copy, PartialEq)]
enum WordMode {
/// There have been no lowercase or uppercase characters in the current
/// word.
Boundary,
/// The previous cased character in the current word is lowercase.
Lowercase,
/// The previous cased character in the current word is uppercase.
Uppercase,
}
let mut first_word = true;
for word in get_iterator(s) {
let mut char_indices = word.char_indices().peekable();
let mut init = 0;
let mut mode = WordMode::Boundary;
while let Some((i, c)) = char_indices.next() {
// Skip underscore characters
if c == '_' {
if init == i {
init += 1;
}
continue;
}
if let Some(&(next_i, next)) = char_indices.peek() {
// The mode including the current character, assuming the
// current character does not result in a word boundary.
let next_mode = if c.is_lowercase() {
WordMode::Lowercase
} else if c.is_uppercase() {
WordMode::Uppercase
} else {
mode
};
// Word boundary after if next is underscore or current is
// not uppercase and next is uppercase
if next == '_' || (next_mode == WordMode::Lowercase && next.is_uppercase()) {
if !first_word {
boundary(f)?;
}
with_word(&word[init..next_i], f)?;
first_word = false;
init = next_i;
mode = WordMode::Boundary;
// Otherwise if current and previous are uppercase and next
// is lowercase, word boundary before
} else if mode == WordMode::Uppercase && c.is_uppercase() && next.is_lowercase() {
if !first_word {
boundary(f)?;
} else {
first_word = false;
}
with_word(&word[init..i], f)?;
init = i;
mode = WordMode::Boundary;
// Otherwise no word boundary, just update the mode
} else {
mode = next_mode;
}
} else {
// Collect trailing characters as a word
if !first_word {
boundary(f)?;
} else {
first_word = false;
}
with_word(&word[init..], f)?;
break;
}
}
}
Ok(())
}
fn lowercase(s: &str, f: &mut fmt::Formatter) -> fmt::Result {
let mut chars = s.chars().peekable();
while let Some(c) = chars.next() {
if c == 'Σ' && chars.peek().is_none() {
write!(f, "ς")?;
} else {
write!(f, "{}", c.to_lowercase())?;
}
}
Ok(())
}
fn uppercase(s: &str, f: &mut fmt::Formatter) -> fmt::Result {
for c in s.chars() {
write!(f, "{}", c.to_uppercase())?;
}
Ok(())
}
fn capitalize(s: &str, f: &mut fmt::Formatter) -> fmt::Result {
let mut char_indices = s.char_indices();
if let Some((_, c)) = char_indices.next() {
write!(f, "{}", c.to_uppercase())?;
if let Some((i, _)) = char_indices.next() {
lowercase(&s[i..], f)?;
}
}
Ok(())
}

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use std::fmt;
use crate::{capitalize, lowercase, transform};
/// This trait defines a lower camel case conversion.
///
/// In lowerCamelCase, word boundaries are indicated by capital letters,
/// excepting the first word.
///
/// ## Example:
///
/// ```rust
/// use heck::ToLowerCamelCase;
///
/// let sentence = "It is we who built these palaces and cities.";
/// assert_eq!(sentence.to_lower_camel_case(), "itIsWeWhoBuiltThesePalacesAndCities");
/// ```
pub trait ToLowerCamelCase: ToOwned {
/// Convert this type to lower camel case.
fn to_lower_camel_case(&self) -> Self::Owned;
}
impl ToLowerCamelCase for str {
fn to_lower_camel_case(&self) -> String {
AsLowerCamelCase(self).to_string()
}
}
/// This wrapper performs a lower camel case conversion in [`fmt::Display`].
///
/// ## Example:
///
/// ```
/// use heck::AsLowerCamelCase;
///
/// let sentence = "It is we who built these palaces and cities.";
/// assert_eq!(format!("{}", AsLowerCamelCase(sentence)), "itIsWeWhoBuiltThesePalacesAndCities");
/// ```
pub struct AsLowerCamelCase<T: AsRef<str>>(pub T);
impl<T: AsRef<str>> fmt::Display for AsLowerCamelCase<T> {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
let mut first = true;
transform(
self.0.as_ref(),
|s, f| {
if first {
first = false;
lowercase(s, f)
} else {
capitalize(s, f)
}
},
|_| Ok(()),
f,
)
}
}
#[cfg(test)]
mod tests {
use super::ToLowerCamelCase;
macro_rules! t {
($t:ident : $s1:expr => $s2:expr) => {
#[test]
fn $t() {
assert_eq!($s1.to_lower_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");
#[cfg(feature = "unicode")]
t!(test9: "XΣXΣ baffle" => "xσxςBaffle");
t!(test10: "XMLHttpRequest" => "xmlHttpRequest");
// TODO unicode tests
}

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use std::fmt;
use crate::{transform, uppercase};
/// This trait defines a shouty kebab case conversion.
///
/// In SHOUTY-KEBAB-CASE, word boundaries are indicated by hyphens and all
/// words are in uppercase.
///
/// ## Example:
///
/// ```rust
/// use heck::ToShoutyKebabCase;
///
/// let sentence = "We are going to inherit the earth.";
/// assert_eq!(sentence.to_shouty_kebab_case(), "WE-ARE-GOING-TO-INHERIT-THE-EARTH");
/// ```
pub trait ToShoutyKebabCase: ToOwned {
/// Convert this type to shouty kebab case.
fn to_shouty_kebab_case(&self) -> Self::Owned;
}
impl ToShoutyKebabCase for str {
fn to_shouty_kebab_case(&self) -> Self::Owned {
AsShoutyKebabCase(self).to_string()
}
}
/// This wrapper performs a kebab case conversion in [`fmt::Display`].
///
/// ## Example:
///
/// ```
/// use heck::AsShoutyKebabCase;
///
/// let sentence = "We are going to inherit the earth.";
/// assert_eq!(format!("{}", AsShoutyKebabCase(sentence)), "WE-ARE-GOING-TO-INHERIT-THE-EARTH");
/// ```
pub struct AsShoutyKebabCase<T: AsRef<str>>(pub T);
impl<T: AsRef<str>> fmt::Display for AsShoutyKebabCase<T> {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
transform(self.0.as_ref(), uppercase, |f| write!(f, "-"), f)
}
}
#[cfg(test)]
mod tests {
use super::ToShoutyKebabCase;
macro_rules! t {
($t:ident : $s1:expr => $s2:expr) => {
#[test]
fn $t() {
assert_eq!($s1.to_shouty_kebab_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: "SHOUTY-KEBAB-CASE" => "SHOUTY-KEBAB-CASE");
}

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use std::fmt;
use crate::{transform, uppercase};
/// This trait defines a shouty snake case conversion.
///
/// In SHOUTY_SNAKE_CASE, word boundaries are indicated by underscores and all
/// words are in uppercase.
///
/// ## Example:
///
/// ```rust
/// use heck::ToShoutySnakeCase;
///
/// let sentence = "That world is growing in this minute.";
/// assert_eq!(sentence.to_shouty_snake_case(), "THAT_WORLD_IS_GROWING_IN_THIS_MINUTE");
/// ```
pub trait ToShoutySnakeCase: ToOwned {
/// Convert this type to shouty snake case.
fn to_shouty_snake_case(&self) -> Self::Owned;
}
/// Oh heck, ToShoutySnekCase is an alias for ToShoutySnakeCase. See
/// ToShoutySnakeCase for more documentation.
pub trait ToShoutySnekCase: ToOwned {
/// CONVERT THIS TYPE TO SNEK CASE.
#[allow(non_snake_case)]
fn TO_SHOUTY_SNEK_CASE(&self) -> Self::Owned;
}
impl<T: ?Sized + ToShoutySnakeCase> ToShoutySnekCase for T {
fn TO_SHOUTY_SNEK_CASE(&self) -> Self::Owned {
self.to_shouty_snake_case()
}
}
impl ToShoutySnakeCase for str {
fn to_shouty_snake_case(&self) -> Self::Owned {
AsShoutySnakeCase(self).to_string()
}
}
/// This wrapper performs a shouty snake case conversion in [`fmt::Display`].
///
/// ## Example:
///
/// ```
/// use heck::AsShoutySnakeCase;
///
/// let sentence = "That world is growing in this minute.";
/// assert_eq!(format!("{}", AsShoutySnakeCase(sentence)), "THAT_WORLD_IS_GROWING_IN_THIS_MINUTE");
/// ```
pub struct AsShoutySnakeCase<T: AsRef<str>>(pub T);
impl<T: AsRef<str>> fmt::Display for AsShoutySnakeCase<T> {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
transform(self.0.as_ref(), uppercase, |f| write!(f, "_"), f)
}
}
#[cfg(test)]
mod tests {
use super::ToShoutySnakeCase;
macro_rules! t {
($t:ident : $s1:expr => $s2:expr) => {
#[test]
fn $t() {
assert_eq!($s1.to_shouty_snake_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");
}

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use std::fmt;
use crate::{lowercase, transform};
/// This trait defines a snake case conversion.
///
/// In snake_case, word boundaries are indicated by underscores.
///
/// ## Example:
///
/// ```rust
/// use heck::ToSnakeCase;
///
/// let sentence = "We carry a new world here, in our hearts.";
/// assert_eq!(sentence.to_snake_case(), "we_carry_a_new_world_here_in_our_hearts");
/// ```
pub trait ToSnakeCase: ToOwned {
/// Convert this type to snake case.
fn to_snake_case(&self) -> Self::Owned;
}
/// Oh heck, SnekCase is an alias for ToSnakeCase. See ToSnakeCase for
/// more documentation.
pub trait ToSnekCase: ToOwned {
/// Convert this type to snek case.
fn to_snek_case(&self) -> Self::Owned;
}
impl<T: ?Sized + ToSnakeCase> ToSnekCase for T {
fn to_snek_case(&self) -> Self::Owned {
self.to_snake_case()
}
}
impl ToSnakeCase for str {
fn to_snake_case(&self) -> String {
AsSnakeCase(self).to_string()
}
}
/// This wrapper performs a snake case conversion in [`fmt::Display`].
///
/// ## Example:
///
/// ```
/// use heck::AsSnakeCase;
///
/// let sentence = "We carry a new world here, in our hearts.";
/// assert_eq!(format!("{}", AsSnakeCase(sentence)), "we_carry_a_new_world_here_in_our_hearts");
/// ```
pub struct AsSnakeCase<T: AsRef<str>>(pub T);
impl<T: AsRef<str>> fmt::Display for AsSnakeCase<T> {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
transform(self.0.as_ref(), lowercase, |f| write!(f, "_"), f)
}
}
#[cfg(test)]
mod tests {
use super::ToSnakeCase;
macro_rules! t {
($t:ident : $s1:expr => $s2:expr) => {
#[test]
fn $t() {
assert_eq!($s1.to_snake_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");
}

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use std::fmt;
use crate::{capitalize, transform};
/// This trait defines a title case conversion.
///
/// In Title Case, word boundaries are indicated by spaces, and every word is
/// capitalized.
///
/// ## Example:
///
/// ```rust
/// use heck::ToTitleCase;
///
/// let sentence = "We have always lived in slums and holes in the wall.";
/// assert_eq!(sentence.to_title_case(), "We Have Always Lived In Slums And Holes In The Wall");
/// ```
pub trait ToTitleCase: ToOwned {
/// Convert this type to title case.
fn to_title_case(&self) -> Self::Owned;
}
impl ToTitleCase for str {
fn to_title_case(&self) -> String {
AsTitleCase(self).to_string()
}
}
/// This wrapper performs a title case conversion in [`fmt::Display`].
///
/// ## Example:
///
/// ```
/// use heck::AsTitleCase;
///
/// let sentence = "We have always lived in slums and holes in the wall.";
/// assert_eq!(format!("{}", AsTitleCase(sentence)), "We Have Always Lived In Slums And Holes In The Wall");
/// ```
pub struct AsTitleCase<T: AsRef<str>>(pub T);
impl<T: AsRef<str>> fmt::Display for AsTitleCase<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::ToTitleCase;
macro_rules! t {
($t:ident : $s1:expr => $s2:expr) => {
#[test]
fn $t() {
assert_eq!($s1.to_title_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");
}

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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");
}

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use std::fmt;
use crate::{capitalize, transform};
/// This trait defines an upper camel case conversion.
///
/// In UpperCamelCase, word boundaries are indicated by capital letters,
/// including the first word.
///
/// ## Example:
///
/// ```rust
/// use heck::ToUpperCamelCase;
///
/// let sentence = "We are not in the least afraid of ruins.";
/// assert_eq!(sentence.to_upper_camel_case(), "WeAreNotInTheLeastAfraidOfRuins");
/// ```
pub trait ToUpperCamelCase: ToOwned {
/// Convert this type to upper camel case.
fn to_upper_camel_case(&self) -> Self::Owned;
}
impl ToUpperCamelCase for str {
fn to_upper_camel_case(&self) -> String {
AsUpperCamelCase(self).to_string()
}
}
/// ToPascalCase is an alias for ToUpperCamelCase. See ToUpperCamelCase for more
/// documentation.
pub trait ToPascalCase: ToOwned {
/// Convert this type to upper camel case.
fn to_pascal_case(&self) -> Self::Owned;
}
impl<T: ?Sized + ToUpperCamelCase> ToPascalCase for T {
fn to_pascal_case(&self) -> Self::Owned {
self.to_upper_camel_case()
}
}
/// This wrapper performs a upper camel case conversion in [`fmt::Display`].
///
/// ## Example:
///
/// ```
/// use heck::AsUpperCamelCase;
///
/// let sentence = "We are not in the least afraid of ruins.";
/// assert_eq!(format!("{}", AsUpperCamelCase(sentence)), "WeAreNotInTheLeastAfraidOfRuins");
/// ```
pub struct AsUpperCamelCase<T: AsRef<str>>(pub T);
impl<T: AsRef<str>> fmt::Display for AsUpperCamelCase<T> {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
transform(self.0.as_ref(), capitalize, |_| Ok(()), f)
}
}
#[cfg(test)]
mod tests {
use super::ToUpperCamelCase;
macro_rules! t {
($t:ident : $s1:expr => $s2:expr) => {
#[test]
fn $t() {
assert_eq!($s1.to_upper_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");
#[cfg(feature = "unicode")]
t!(test9: "XΣXΣ baffle" => "XσxςBaffle");
t!(test10: "XMLHttpRequest" => "XmlHttpRequest");
}