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From: "andrykonchin (Andrew Konchin) via ruby-core" <ruby-core@ml.ruby-lang.org>
To: ruby-core@ml.ruby-lang.org
Cc: "andrykonchin (Andrew Konchin)" <noreply@ruby-lang.org>
Subject: [ruby-core:117470] [Ruby master Bug#20416] IO#read doesn't preserve buffer encoding if `maxlen = nil`
Date: Tue, 09 Apr 2024 12:18:59 +0000 (UTC)	[thread overview]
Message-ID: <redmine.issue-20416.20240409121858.13553@ruby-lang.org> (raw)
In-Reply-To: redmine.issue-20416.20240409121858.13553@ruby-lang.org

Issue #20416 has been reported by andrykonchin (Andrew Konchin).

----------------------------------------
Bug #20416: IO#read doesn't preserve buffer encoding if `maxlen = nil`
https://bugs.ruby-lang.org/issues/20416

* Author: andrykonchin (Andrew Konchin)
* Status: Open
* ruby -v: 3.3.0
* Backport: 3.0: UNKNOWN, 3.1: UNKNOWN, 3.2: UNKNOWN, 3.3: UNKNOWN
----------------------------------------
`IO#read(nil, buffer)` doesn't change buffer's encoding, but it does when `maxlen` parameter is specified:

```ruby
buffer = "".encode(Encoding::ISO_8859_1)

File.open("test.rb").read(1000, buffer).encoding # => #<Encoding:ISO-8859-1>
File.open("test.rb").read(nil, buffer).encoding  # => #<Encoding:UTF-8>
```

I would expect changing buffer encoding in all the cases.



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       reply	other threads:[~2024-04-09 12:19 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-04-09 12:18 andrykonchin (Andrew Konchin) via ruby-core [this message]
2024-04-09 12:34 ` [ruby-core:117471] [Ruby master Bug#20416] IO#read doesn't preserve buffer encoding if `maxlen = nil` byroot (Jean Boussier) via ruby-core
2024-04-09 13:10 ` [ruby-core:117474] " byroot (Jean Boussier) via ruby-core

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