Bug #9414

strftime returns incorrectly encoded string

Added by Jimmy Song about 1 year ago. Updated about 1 year ago.

[ruby-core:<unknown>]
Status:Feedback
Priority:Normal
Assignee:Nobuyoshi Nakada
ruby -v:- Backport:1.9.3: UNKNOWN, 2.0.0: UNKNOWN, 2.1: UNKNOWN

Description

On French Windows 7 with date set to July 1 2014 (summer daylight savings time):

C:\Ruby200\bin>irb
DL is deprecated, please use Fiddle
irb(main):001:0> Time.now.strftime("%Z")
=> "Centre (heure d\x92\xE9t\xE9)"
irb(main):002:0> Time.now.strftime("%Z").encoding
=> #<Encoding:CP850>
irb(main):003:0> puts Time.now.strftime("%Z")
Centre (heure dÆÚtÚ)
=> nil
irb(main):004:0> puts Time.now.strftime("%Z").force_encoding("CP1252")
Centre (heure d'été)
=> nil
irb(main):005:0>

It looks like the string that is returned by strftime here does not actually match the encoding that is applied to it? The returned bytes only make sense if interpreted as Windows-1252, not CP850. This is on a clean install of Ruby with no gems added.

History

#1 Updated by Nobuyoshi Nakada about 1 year ago

  • Status changed from Open to Feedback

What's your system codepage, 850 or 1252?

#2 Updated by Nobuyoshi Nakada about 1 year ago

  • Description updated (diff)

#3 Updated by Nobuyoshi Nakada about 1 year ago

  • ruby -v changed from ruby 2.0.0p353 (2013-11-22) [i386-mingw32] to -

Issue #9414 has been updated by Nobuyoshi Nakada.

Status changed from Open to Feedback

What's your system codepage, 850 or 1252?


Bug #9414: strftime returns incorrectly encoded string
https://bugs.ruby-lang.org/issues/9414#change-44351

  • Author: Jimmy Song
  • Status: Feedback
  • Priority: Normal
  • Assignee: Nobuyoshi Nakada
  • Category: platform/mingw
  • Target version: current: 2.2.0
  • ruby -v: ruby 2.0.0p353 (2013-11-22) [i386-mingw32]
  • Backport: 1.9.3: UNKNOWN, 2.0.0: UNKNOWN, 2.1: UNKNOWN ---------------------------------------- On French Windows 7 with date set to July 1 2014 (summer daylight savings time):

C:\Ruby200\bin>irb
DL is deprecated, please use Fiddle
irb(main):001:0> Time.now.strftime("%Z")
=> "Centre (heure d\x92\xE9t\xE9)"
irb(main):002:0> Time.now.strftime("%Z").encoding
=> #Encoding:CP850
irb(main):003:0> puts Time.now.strftime("%Z")
Centre (heure dÆÚtÚ)
=> nil
irb(main):004:0> puts Time.now.strftime("%Z").force_encoding("CP1252")
Centre (heure d'été)
=> nil
irb(main):005:0>

It looks like the string that is returned by strftime here does not actually match the encoding that is applied to it? The returned bytes only make sense if interpreted as Windows-1252, not CP850. This is on a clean install of Ruby with no gems added.

--
http://bugs.ruby-lang.org/

#4 Updated by Nobuyoshi Nakada about 1 year ago

Issue #9414 has been updated by Nobuyoshi Nakada.

Description updated


Bug #9414: strftime returns incorrectly encoded string
https://bugs.ruby-lang.org/issues/9414#change-44352

  • Author: Jimmy Song
  • Status: Feedback
  • Priority: Normal
  • Assignee: Nobuyoshi Nakada
  • Category: platform/mingw
  • Target version: current: 2.2.0
  • ruby -v: ruby 2.0.0p353 (2013-11-22) [i386-mingw32]
  • Backport: 1.9.3: UNKNOWN, 2.0.0: UNKNOWN, 2.1: UNKNOWN ---------------------------------------- On French Windows 7 with date set to July 1 2014 (summer daylight savings time):
 C:\Ruby200\bin>irb
 DL is deprecated, please use Fiddle
 irb(main):001:0> Time.now.strftime("%Z")
 => "Centre (heure d\x92\xE9t\xE9)"
 irb(main):002:0> Time.now.strftime("%Z").encoding
 => #<Encoding:CP850>
 irb(main):003:0> puts Time.now.strftime("%Z")
 Centre (heure dÆÚtÚ)
 => nil
 irb(main):004:0> puts Time.now.strftime("%Z").force_encoding("CP1252")
 Centre (heure d'été)
 => nil
 irb(main):005:0>

It looks like the string that is returned by strftime here does not actually match the encoding that is applied to it? The returned bytes only make sense if interpreted as Windows-1252, not CP850. This is on a clean install of Ruby with no gems added.

--
http://bugs.ruby-lang.org/

#5 Updated by Jimmy Song about 1 year ago

How do I determine the system code page?

#6 Updated by Jimmy Song about 1 year ago

Ah, ok, I think I got it:

C:\Ruby200\bin>chcp
Page de codes active : 850

#7 Updated by Jimmy Song about 1 year ago

Issue #9414 has been updated by Jimmy Song.

How do I determine the system code page?


Bug #9414: strftime returns incorrectly encoded string
https://bugs.ruby-lang.org/issues/9414#change-44358

  • Author: Jimmy Song
  • Status: Feedback
  • Priority: Normal
  • Assignee: Nobuyoshi Nakada
  • Category: platform/mingw
  • Target version: current: 2.2.0
  • ruby -v: -
  • Backport: 1.9.3: UNKNOWN, 2.0.0: UNKNOWN, 2.1: UNKNOWN ---------------------------------------- On French Windows 7 with date set to July 1 2014 (summer daylight savings time):
 C:\Ruby200\bin>irb
 DL is deprecated, please use Fiddle
 irb(main):001:0> Time.now.strftime("%Z")
 => "Centre (heure d\x92\xE9t\xE9)"
 irb(main):002:0> Time.now.strftime("%Z").encoding
 => #<Encoding:CP850>
 irb(main):003:0> puts Time.now.strftime("%Z")
 Centre (heure dÆÚtÚ)
 => nil
 irb(main):004:0> puts Time.now.strftime("%Z").force_encoding("CP1252")
 Centre (heure d'été)
 => nil
 irb(main):005:0>

It looks like the string that is returned by strftime here does not actually match the encoding that is applied to it? The returned bytes only make sense if interpreted as Windows-1252, not CP850. This is on a clean install of Ruby with no gems added.

--
http://bugs.ruby-lang.org/

#8 Updated by Jimmy Song about 1 year ago

Issue #9414 has been updated by Jimmy Song.

Ah, ok, I think I got it:

C:\Ruby200\bin>chcp
Page de codes active : 850


Bug #9414: strftime returns incorrectly encoded string
https://bugs.ruby-lang.org/issues/9414#change-44359

  • Author: Jimmy Song
  • Status: Feedback
  • Priority: Normal
  • Assignee: Nobuyoshi Nakada
  • Category: platform/mingw
  • Target version: current: 2.2.0
  • ruby -v: -
  • Backport: 1.9.3: UNKNOWN, 2.0.0: UNKNOWN, 2.1: UNKNOWN ---------------------------------------- On French Windows 7 with date set to July 1 2014 (summer daylight savings time):
 C:\Ruby200\bin>irb
 DL is deprecated, please use Fiddle
 irb(main):001:0> Time.now.strftime("%Z")
 => "Centre (heure d\x92\xE9t\xE9)"
 irb(main):002:0> Time.now.strftime("%Z").encoding
 => #<Encoding:CP850>
 irb(main):003:0> puts Time.now.strftime("%Z")
 Centre (heure dÆÚtÚ)
 => nil
 irb(main):004:0> puts Time.now.strftime("%Z").force_encoding("CP1252")
 Centre (heure d'été)
 => nil
 irb(main):005:0>

It looks like the string that is returned by strftime here does not actually match the encoding that is applied to it? The returned bytes only make sense if interpreted as Windows-1252, not CP850. This is on a clean install of Ruby with no gems added.

--
http://bugs.ruby-lang.org/

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