From: aycabta@...
Date: 2018-07-18T05:18:27+00:00
Subject: [ruby-core:87975] [Ruby trunk Bug#14919] Add String#byteinsert

Issue #14919 has been reported by aycabta (aycabta .).

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Bug #14919: Add String#byteinsert
https://bugs.ruby-lang.org/issues/14919

* Author: aycabta (aycabta .)
* Status: Open
* Priority: Normal
* Assignee: 
* Target version: 
* ruby -v: 
* Backport: 2.3: UNKNOWN, 2.4: UNKNOWN, 2.5: UNKNOWN
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It's important for multibyte String editing. Unicode grapheme characters sometimes have plural code points. In text editing, software sometimes should add a new code point to an existing grapheme character. String#byteinsert is important for it.

I implemented by pure Ruby in my code.
https://github.com/aycabta/reline/blob/b17e5fd61092adfd7e87d576301e4e19a4d9e6d8/lib/reline/line_editor.rb#L255-L260




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