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:117478] [Ruby master Bug#20418] `StringIO#read(..., buffer)` doesn't preserve buffer's encoding
Date: Tue, 09 Apr 2024 17:14:13 +0000 (UTC) [thread overview]
Message-ID: <redmine.issue-20418.20240409171412.13553@ruby-lang.org> (raw)
In-Reply-To: redmine.issue-20418.20240409171412.13553@ruby-lang.org
Issue #20418 has been reported by andrykonchin (Andrew Konchin).
----------------------------------------
Bug #20418: `StringIO#read(..., buffer)` doesn't preserve buffer's encoding
https://bugs.ruby-lang.org/issues/20418
* Author: andrykonchin (Andrew Konchin)
* Status: Open
* ruby -v: 3.2.2
* Backport: 3.0: UNKNOWN, 3.1: UNKNOWN, 3.2: UNKNOWN, 3.3: UNKNOWN
----------------------------------------
IO#read (and similar methods `#read_nonblock`, `#readpartial`, `#sysread`) when called with a `buffer` argument preserve its encoding. But `StringIO#read` doesn't do so:
```ruby
file = File.open('test.rb')
buffer = "".encode(Encoding::ISO_8859_1)
file.read(10, buffer)
buffer.encoding # => #<Encoding:ISO-8859-1>
```
```ruby
require 'stringio'
io = StringIO.new("# encoding")
buffer = "".encode(Encoding::ISO_8859_1)
io.read(10, buffer)
buffer.encoding # => #<Encoding:ASCII-8BIT>
```
I would expect StringIO's read and similar methods to preserve a buffer's encoding.
--
https://bugs.ruby-lang.org/
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next parent reply other threads:[~2024-04-09 17:14 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-04-09 17:14 andrykonchin (Andrew Konchin) via ruby-core [this message]
2024-04-11 14:17 ` [ruby-core:117493] [Ruby master Bug#20418] `StringIO#read(..., buffer)` doesn't preserve buffer's encoding byroot (Jean Boussier) via ruby-core
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