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android / platform / external / rust / crates / heck / 911f50a7aa0fad1003055814aa3bad5cb3d3dba5
commit911f50a7aa0fad1003055814aa3bad5cb3d3dba5[log] [tgz]
authorJeff Vander Stoep <jeffv@google.com>Sat Feb 18 01:01:47 2023 +0000
committerAutomerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>Sat Feb 18 01:01:47 2023 +0000
tree855a8fcdd7c39a5975ad6d1f34520e597d507012
parenta826ecde20a1557be00bd5bb88435114d412a12d [diff]
parent3f50c54c505f7cf4fe268d7e8602b206f8bf204b [diff]
Upgrade heck to 0.4.1 am: 3e60f5b81b am: 6b88be41d8 am: 32329a9a49 am: 5f67e400a6 am: 3f50c54c50 Original change: https://android-review.googlesource.com/c/platform/external/rust/crates/heck/+/2440576 Change-Id: I7c53b49cc5a3301a06f3effc4691a2d191795e0d Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>
tree: 855a8fcdd7c39a5975ad6d1f34520e597d507012
  1. 0.3.3/
  2. patches/
  3. src/
  4. LICENSE ⇨ LICENSE-APACHE
  5. NOTICE ⇨ LICENSE
  6. .cargo_vcs_info.json
  7. .gitignore
  8. Android.bp
  9. Cargo.toml
  10. Cargo.toml.orig
  11. cargo2android.json
  12. CHANGELOG.md
  13. LICENSE-APACHE
  14. LICENSE-MIT
  15. METADATA
  16. MODULE_LICENSE_APACHE2
  17. OWNERS
  18. README.md
  19. TEST_MAPPING
README.md

heck is a case conversion library

I specifically requested the opposite of this.

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.