[#44036] [ruby-trunk - Feature #6242][Open] Ruby should support lists — "shugo (Shugo Maeda)" <redmine@...>

20 messages 2012/04/01

[#44084] [ruby-trunk - Bug #6246][Open] 1.9.3-p125 intermittent segfault — "jshow (Jodi Showers)" <jodi@...>

22 messages 2012/04/02

[#44156] [ruby-trunk - Feature #6265][Open] Remove 'useless' 'concatenation' syntax — "rosenfeld (Rodrigo Rosenfeld Rosas)" <rr.rosas@...>

45 messages 2012/04/06

[#44163] [ruby-trunk - Bug #6266][Open] encoding related exception with recent integrated psych — "jonforums (Jon Forums)" <redmine@...>

10 messages 2012/04/06

[#44303] [ruby-trunk - Feature #6284][Open] Add composition for procs — "pabloh (Pablo Herrero)" <pablodherrero@...>

57 messages 2012/04/12

[#44349] [ruby-trunk - Feature #6293][Open] new queue / blocking queues — "tenderlovemaking (Aaron Patterson)" <aaron@...>

10 messages 2012/04/13

[#44402] [ruby-trunk - Feature #6308][Open] Eliminate delegation from WeakRef — "headius (Charles Nutter)" <headius@...>

20 messages 2012/04/17

[#44403] [ruby-trunk - Feature #6309][Open] Add a reference queue for weak references — "headius (Charles Nutter)" <headius@...>

15 messages 2012/04/17

[#44533] [ruby-trunk - Bug #6341][Open] SIGSEGV: Thread.new { fork { GC.start } }.join — "rudolf (r stu3)" <redmine@...>

24 messages 2012/04/22

[#44630] [ruby-trunk - Feature #6361][Open] Bitwise string operations — "MartinBosslet (Martin Bosslet)" <Martin.Bosslet@...>

31 messages 2012/04/26

[#44648] [ruby-trunk - Feature #6367][Open] #same? for Enumerable — "prijutme4ty (Ilya Vorontsov)" <prijutme4ty@...>

16 messages 2012/04/26

[#44704] [ruby-trunk - Feature #6373][Open] public #self — "trans (Thomas Sawyer)" <transfire@...>

61 messages 2012/04/27

[#44748] [ruby-trunk - Feature #6376][Open] Feature lookup and checking if feature is loaded — "trans (Thomas Sawyer)" <transfire@...>

13 messages 2012/04/28

[ruby-core:44467] [ruby-trunk - Bug #6324][Assigned] Spurious/incorrect warning on File.open with internal_encoding specified in string mode to duplicate external_encoding

From: "mame (Yusuke Endoh)" <mame@...>
Date: 2012-04-19 19:36:41 UTC
List: ruby-core #44467
Issue #6324 has been updated by mame (Yusuke Endoh).

Status changed from Open to Assigned
Assignee set to duerst (Martin D端rst)

Martin-sensei, Naruse-san, what do you think?

-- 
Yusuke Endoh <[email protected]>
----------------------------------------
Bug #6324: Spurious/incorrect warning on File.open with internal_encoding specified in string mode to duplicate external_encoding
https://bugs.ruby-lang.org/issues/6324#change-26022

Author: jrochkind (jonathan rochkind)
Status: Assigned
Priority: Normal
Assignee: duerst (Martin D端rst)
Category: 
Target version: 
ruby -v: ruby 1.9.3p125 (2012-02-16 revision 34643) [x86_64-linux]


Normally, if you open a File specifying an internal_encoding equivalent to an external_encoding, using the string method, it gives you a warning. _Normally_ this warning is possibly appropriate and accurate:



   irb(main):018:0* f = File.open("test", "r:cp866:cp866")
   (irb):18: warning: Ignoring internal encoding cp866: it is identical to external encoding cp866

However, there is a case where it is NOT. If you have set your Encoding.default_internal

   irb(main):019:0> Encoding.default_internal = "UTF-8"
   irb(main):020:0> f = File.open("test", "r:cp866:cp866")
   (irb):20: warning: Ignoring internal encoding cp866: it is identical to external encoding cp866

In this case, it is neccesary to set the internal_encoding to override the non-nil Encoding.default_internal

The functionality in fact _works_ here, we HAVE succesfully over-ridden the default_internal:

   irb(main):022:0> p f.internal_encoding
   => nil
   irb(main):023:0> f.read.encoding
   => #<Encoding:IBM866>

So the warning is in fact _wrong_, the :internal_encoding was NOT ignored, it was used as desired. The warning is also unneccesary, what was being done here makes perfect sense, there's no need for a warning. 

Note that the named argument approach works differnetly, no warning is output (whether or not you've set Encoding.default_internal). 


    irb(main):024:0> f = File.open("foo", :external_encoding => "cp866", :internal_encoding => "cp866")
    => #<File:foo>  # NO WARNING OUTPUT
    irb(main):025:0> f.internal_encoding
    => nil # CORRECT
    irb(main):026:0> f.read.encoding
    => #<Encoding:IBM866> # CORRECT

Both the named argument and the permission-string method seem to work properly and equivalently. But only the permission-string argument method gives you an incorrect warning. 




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

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