Backport #4279: String#unpack('M') always results US-ASCII encoded string

• Status: Closed
• Assignee: yugui (Yuki Sonoda)

[phasis68 (Heesob Park)]

=begin
$ irb
irb(main):001:0> "=C6=F7".unpack('M*')
=> ["\xC6\xF7"]
irb(main):002:0> "=C6=F7".unpack('M*')[0].encoding
=> #Encoding:US-ASCII
irb(main):003:0> "=C6=F7".unpack('M*')[0].valid_encoding?
=> true
irb(main):004:0> "\xC6\xF7".encoding
=> #Encoding:EUC-KR
irb(main):005:0> "\xC6\xF7".valid_encoding?
=> true
=end

[naruse (Yui NARUSE)]

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

=begin
This issue was solved with changeset r30542.
Heesob, thank you for reporting this issue.
Your contribution to Ruby is greatly appreciated.
May Ruby be with you.

=end

[nobu (Nobuyoshi Nakada)]

• Tracker changed from Bug to Backport
• Project changed from Ruby master to Backport192
• Category changed from core to core
• Status changed from Closed to Assigned
• Assignee set to yugui (Yuki Sonoda)
• Target version deleted (2.0.0)

"\xC6\xF7" is not ascii only.

$ ruby-1.9.2 -v -e 'p "=C6=F7".unpack("M*")[0].ascii_only?'
ruby 1.9.2p188 (2011-03-28 revision 31204) [x86_64-linux]
true

[yugui (Yuki Sonoda)]

• Status changed from Assigned to Closed

This issue was solved with changeset r31852.
Heesob, thank you for reporting this issue.
Your contribution to Ruby is greatly appreciated.
May Ruby be with you.

---

merges r30542 from trunk into ruby_1_9_2. Fixes #4279.

• pack.c (pack_unpack): the resulted string of unpack('M') must have
  ASCII-8BIT encoding (and ENC_CODERANGE_VALID). [ruby-core:34482]