Bug #4041: Array#to_csv generates invalid US-ASCII string

• Status: Closed
• Assignee: JEG2 (James Gray)
• Target version: -
• ruby -v: ruby 1.9.3dev (2010-11-10 trunk 29738) [i686-linux]

[akr (Akira Tanaka)]

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I found Array#to_csv method generates a string with invalid encoding.

% ./ruby -rcsv -ve '
a = ["foo".force_encoding("US-ASCII"), "\u3042"]
p a.map {|v| v.encoding }
s = a.to_csv
p s
p s.encoding'
ruby 1.9.3dev (2010-11-10 trunk 29738) [i686-linux]
[#Encoding:US-ASCII, #Encoding:UTF-8]
"foo,\xE3\x81\x82\n"
#Encoding:US-ASCII

The array to convert to CSV using Array#to_csv contains US-ASCII string and
UTF-8 string.
But the result is US-ASCII string which contains 8-bit bytes.

I think the result should be UTF-8 string.

Tanaka Akira
=end

[naruse (Yui NARUSE)]

• Category set to lib
• Status changed from Open to Assigned
• Assignee set to JEG2 (James Gray)
• Priority changed from 3 to Normal
• ruby -v set to ruby 1.9.3dev (2010-11-10 trunk 29738) [i686-linux]

=begin

=end

[JEG2 (James Gray)]

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I agree that this is a problem. I will look into it.
=end

[JEG2 (James Gray)]

• Status changed from Assigned to Closed
• % Done changed from 0 to 100

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This issue was solved with changeset r29808.
Akira, thank you for reporting this issue.
Your contribution to Ruby is greatly appreciated.
May Ruby be with you.

=end