[ruby-core:82546] [Ruby trunk Feature#13780] String#each_grapheme

Issue #13780 has been updated by matz (Yukihiro Matsumoto).


`grapheme` sounds like an element in the grapheme cluster. How about `each_grapheme_cluster`?
If everyone gets used to the `grapheme` as an alias of `grapheme cluster`, we'd love to add an alias `each_grapheme`.

Matz.


----------------------------------------
Feature #13780: String#each_grapheme
https://bugs.ruby-lang.org/issues/13780#change-66354

* Author: rbjl (Jan Lelis)
* Status: Assigned
* Priority: Normal
* Assignee: naruse (Yui NARUSE)
* Target version: 2.5
----------------------------------------
Ruby's regex engine has support for graphemes via `\X`:

https://github.com/k-takata/Onigmo/blob/791140951eefcf17db4e762e789eb046ea8a114c/doc/RE#L117-L124

This is really useful when working with Unicode strings. However, code like `string.scan(/\X/)` is not so readable enough, which might lead people to use String#each_char, when they really should split by graphemes.

What I propose is two new methods:

- String#each_grapheme which returns an Enumerator of graphemes (in the same way like `\X`)

and 

- String#graphemes which returns an Array of graphemes (in the same way like `\X`)

What do you think?

Resources

- Unicode速 Standard Annex #29: Unicode Text Segmentation: http://unicode.org/reports/tr29/
- Related issue: https://bugs.ruby-lang.org/issues/12831




-- 
https://bugs.ruby-lang.org/

Unsubscribe: <mailto:[e-mail]?subject=unsubscribe>
<http://lists.ruby-lang.org/cgi-bin/mailman/options/ruby-core>