Bug #833: Encoding in which Array#pack returns when the last format is 'u', 'M', 'm' - Ruby - Ruby Issue Tracking System

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Bug #833

closed

Encoding in which Array#pack returns when the last format is 'u', 'M', 'm'

Added by yugui (Yuki Sonoda) over 16 years ago. Updated about 14 years ago.

Status:

Closed

Assignee:

-

Target version:

-

ruby -v:

Backport:

[ruby-dev:37295]

Description

=begin
Yuguiです。

たぶん[ruby-dev:37286]がらみですが、パックフォーマットの最後に'u', 'M',
'm'があると戻り値が問答無用でUS-ASCIIになります。

str1 = "\xE0\xE1".force_encoding("iso-8859-1")
str2 = "\u3042".encode("UTF-16BE")
bin1 = "\xFF\xFe\x81\x82"

p [str1].pack("A*").encoding #=> #Encoding:ISO-8859-1
p [str2].pack("A*").encoding #=> #Encoding:UTF-16BE
p [str1, str2].pack("AA").encoding #=> #Encoding:ASCII_8BIT
p [str1, bin1].pack("Am").encoding #=> #Encoding:US-ASCII
p [str2, bin1].pack("Am").encoding #=> #Encoding:US-ASCII
p [str1, str2, bin1].pack("AAm").encoding #=> #Encoding:US-ASCII

--
Yugui [email protected]
http://yugui.jp
私は私をDumpする
=end

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