[ruby-core:74930] [Ruby trunk Misc#12277] Coding rule: colum number

Issue #12277 has been updated by Shyouhei Urabe.


I was on the meeting.  I'm for some line width cap, be they 80 or 120.
It is a good idea to be concise.  I'm especially for comments being concise.

However I don't like the idea of indiscreetly line-folding things _only because_ they are long.  I'd like to advise refactoring such function so that long lines would disappear.  When avoiding long lines makes it less intuitive, they should be left long I believe.  C's prototype declaration (especially with many const restrict pointers) is one of such example.

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Misc #12277: Coding rule: colum number
https://bugs.ruby-lang.org/issues/12277#change-58059

* Author: Koichi Sasada
* Status: Open
* Priority: Normal
* Assignee: 
----------------------------------------
Eric proposed that code should be limited in 80 column.
https://bugs.ruby-lang.org/issues/12236#note-1

At today's developer's meeting, I asked how long column is suitable.

* declaration can over limitation.
* logic should have some limitation (permit exceptional cases)

This is an survey at today's meeting.

```
Expected column limitation:
      80 none
     100 2 people
     120 some people
over 120 only ko1
```




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