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From: akr@fsij•org
To: ruby-dev@ruby-lang.org
Subject: [ruby-dev:50393] [Ruby trunk Bug#14240] warn four special variables: $; $, $/ $\
Date: Tue, 26 Dec 2017 08:08:09 +0000 (UTC)	[thread overview]
Message-ID: <redmine.issue-14240.20171226080808.9160e118218718fb@ruby-lang.org> (raw)
In-Reply-To: redmine.issue-14240.20171226080808@ruby-lang.org

Issue #14240 has been reported by akr (Akira Tanaka).

----------------------------------------
Bug #14240: warn four special variables: $; $, $/ $\
https://bugs.ruby-lang.org/issues/14240

* Author: akr (Akira Tanaka)
* Status: Open
* Priority: Normal
* Assignee: 
* Target version: 
* ruby -v: 
* Backport: 2.3: UNKNOWN, 2.4: UNKNOWN, 2.5: UNKNOWN
----------------------------------------
I think the four special variables for separators should be deprecated.

```
$/    input record separator (default argument for "gets")
$\    output record separator ("print" prints it at last)
$,    default separator for Array#join and print
$;    default separator for String#split
```

I feel many program doesn't work if they are set to non-default value.

Since they are global, not thread local,
we can not change these variables safely in a multi threaded program.

So, I think we should warn them (and delete them in future).







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

       reply	other threads:[~2017-12-26  8:08 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <redmine.issue-14240.20171226080808@ruby-lang.org>
2017-12-26  8:08 ` akr [this message]
2017-12-26  8:13 ` [ruby-dev:50394] [Ruby trunk Bug#14240] warn four special variables: $; $, $/ $\ matz
2017-12-26  8:55   ` [ruby-dev:50396] " Eric Wong
2017-12-26  9:23     ` [ruby-dev:50397] Re: [ruby-core:84472] " Tanaka Akira
2017-12-26 19:52       ` [ruby-dev:50400] Re: [ruby-core:84476] " Eric Wong
2017-12-26 11:08 ` [ruby-dev:50398] " shevegen
2017-12-26 21:15 ` [ruby-dev:50401] " eregontp
2018-01-24  8:22 ` [ruby-dev:50425] " akr
2018-01-25 10:10 ` [ruby-dev:50431] " nobu
2019-07-26 23:19 ` [ruby-dev:50820] [Ruby master " merch-redmine
2019-07-27  1:54 ` [ruby-dev:50821] " nobu
2019-07-29 19:03 ` [ruby-dev:50823] " merch-redmine
2019-07-30  1:52 ` [ruby-dev:50824] " nobu
2019-08-26  0:58 ` [ruby-dev:50837] " merch-redmine
2019-08-26  4:33 ` [ruby-dev:50838] " nobu
2019-12-26  2:39 ` [ruby-dev:50902] [Ruby master Feature#14240] " mame

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