Re: "Unicode"

From	"Alf P. Steinbach" <alf.p.steinbach+usenet@gmail.com>
Newsgroups	comp.lang.c++, comp.lang.c
Subject	Re: "Unicode"
Date	2016-09-08 02:16 +0200
Organization	A noiseless patient Spider
Message-ID	<nqqam8$906$1@dont-email.me> (permalink)
References	(5 earlier) <ap-dnQfmBryPG1HKnZ2dnUU78c_NnZ2d@brightview.co.uk> <V-ednY8NC_o-DVHKnZ2dnUU78QHNnZ2d@giganews.com> <wPOdneAYmKDDS1DKnZ2dnUU78f_NnZ2d@brightview.co.uk> <y-qdnS41zcF8QVDKnZ2dnUU78bnNnZ2d@giganews.com> <I9idnSszcJ7K603KnZ2dnUU78afNnZ2d@brightview.co.uk>

Cross-posted to 2 groups.

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On 07.09.2016 22:19, Vir Campestris wrote:
<>
> This is weird. You can call chcp 65001 on a command prompt to set it to
> UTF-8, and I'm absolutely certain I've done it from an app in the past.
> And yet I can't find the documentation for it anywhere. I wonder if it's
> something that used to work, but doesn't any more?

The Windows API level has never supported UTF-8 in consoles. The 
behavior has been as if errors are sticky. Output could work till the 
first non-ASCII character, but input wouldn't work at all (down at the 
API level).

In Windows versions before Windows 8, using codepage 65000 would get you 
funny “out of memory” and other errors, from e.g. "more" command:

[example]
[c:\my\forums\clc++]
 > chcp 65000
Active code page: 65000

[c:\my\forums\clc++]
 > more
Not enough memory.

[c:\my\forums\clc++]
 > ver
Microsoft Windows [Version 6.1.7601]
[/example]

I'm not sure exactly when that was fixed, but as I recall it's not that 
same idiotic error message in Windows 10; maybe no error.

Windows 10 got a lot of improvements in the console subsystem, including 
ordinary shortkeys for copy/paste, unwrapping of wrapped output lines, 
and once again support for ANSI escape sequences.

However, the escape sequence support isn't quite quite yet, and it 
doesn't work with Windows Script Host, apparently because WSH uses 
direct Unicode console i/o while (apparently) the escape sequences only 
work for byte streams  --  which is sort of ironic, that the now almost 
deprecated WSH console i/o is not poor enough to get the benefits…

Cheers!,

- Alf

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"Unicode" Lynn McGuire <lynnmcguire5@gmail.com> - 2016-08-29 12:06 -0500
  Re: "Unicode" Daniel <danielaparker@gmail.com> - 2016-08-29 11:52 -0700
    Re: "Unicode" Lynn McGuire <lynnmcguire5@gmail.com> - 2016-08-30 12:24 -0500
      Re: "Unicode" legalize+jeeves@mail.xmission.com (Richard) - 2016-08-30 18:50 +0000
        Re: "Unicode" Lynn McGuire <lynnmcguire5@gmail.com> - 2016-08-30 14:11 -0500
          Re: "Unicode" legalize+jeeves@mail.xmission.com (Richard) - 2016-08-30 19:44 +0000
        Re: "Unicode" Vir Campestris <vir.campestris@invalid.invalid> - 2016-08-30 21:29 +0100
          Re: "Unicode" legalize+jeeves@mail.xmission.com (Richard) - 2016-08-31 20:31 +0000
            Re: "Unicode" "Alf P. Steinbach" <alf.p.steinbach+usenet@gmail.com> - 2016-09-01 01:50 +0200
              Re: "Unicode" Daniel <danielaparker@gmail.com> - 2016-08-31 18:47 -0700
                Re: "Unicode" "Osmium" <r124c4u102@comcast.net> - 2016-09-01 06:01 -0500
              Re: "Unicode" Jerry Stuckle <jstucklex@attglobal.net> - 2016-08-31 23:06 -0400
                Re: "Unicode" Ian Collins <ian-news@hotmail.com> - 2016-09-01 15:21 +1200
                Re: "Unicode" Jerry Stuckle <jstucklex@attglobal.net> - 2016-09-01 15:07 -0400
                Re: "Unicode" "Alf P. Steinbach" <alf.p.steinbach+usenet@gmail.com> - 2016-09-01 08:02 +0200
                Re: "Unicode" legalize+jeeves@mail.xmission.com (Richard) - 2016-09-01 18:46 +0000
                Re: "Unicode" David Brown <david.brown@hesbynett.no> - 2016-09-01 10:09 +0200
                Re: "Unicode" Mr Flibble <flibbleREMOVETHISBIT@i42.co.uk> - 2016-09-01 17:58 +0100
                Re: "Unicode" Jerry Stuckle <jstucklex@attglobal.net> - 2016-09-01 15:08 -0400
                Re: "Unicode" Mr Flibble <flibbleREMOVETHISBIT@i42.co.uk> - 2016-09-01 21:20 +0100
                Re: "Unicode" Jerry Stuckle <jstucklex@attglobal.net> - 2016-09-01 20:52 -0400
                Re: "Unicode" Mr Flibble <flibbleREMOVETHISBIT@i42.co.uk> - 2016-09-02 14:44 +0100
                Re: "Unicode" Jerry Stuckle <jstucklex@attglobal.net> - 2016-09-02 10:10 -0400
                Re: "Unicode" Mr Flibble <flibbleREMOVETHISBIT@i42.co.uk> - 2016-09-02 16:35 +0100
                Re: "Unicode" Jerry Stuckle <jstucklex@attglobal.net> - 2016-09-02 12:26 -0400
                Re: "Unicode" Mr Flibble <flibbleREMOVETHISBIT@i42.co.uk> - 2016-09-02 17:02 +0100
                Re: "Unicode" Jerry Stuckle <jstucklex@attglobal.net> - 2016-09-02 12:33 -0400
                Re: "Unicode" Mr Flibble <flibbleREMOVETHISBIT@i42.co.uk> - 2016-09-02 17:53 +0100
                Re: "Unicode" Gareth Owen <gwowen@gmail.com> - 2016-09-02 19:20 +0100
                Re: "Unicode" Jerry Stuckle <jstucklex@attglobal.net> - 2016-09-02 16:36 -0400
                Re: "Unicode" Mr Flibble <flibbleREMOVETHISBIT@i42.co.uk> - 2016-09-02 21:45 +0100
                Re: "Unicode" Jerry Stuckle <jstucklex@attglobal.net> - 2016-09-02 19:57 -0400
              Re: "Unicode" legalize+jeeves@mail.xmission.com (Richard) - 2016-09-01 18:45 +0000
                Re: "Unicode" Jerry Stuckle <jstucklex@attglobal.net> - 2016-09-01 15:11 -0400
                Re: "Unicode" David Brown <david.brown@hesbynett.no> - 2016-09-01 22:27 +0200
                Re: "Unicode" Mr Flibble <flibbleREMOVETHISBIT@i42.co.uk> - 2016-09-01 21:37 +0100
                Re: "Unicode" Jerry Stuckle <jstucklex@attglobal.net> - 2016-09-01 20:53 -0400
                Re: "Unicode" "Alf P. Steinbach" <alf.p.steinbach+usenet@gmail.com> - 2016-09-02 05:57 +0200
      Re: "Unicode" Bo Persson <bop@gmb.dk> - 2016-08-30 21:30 +0200
        Re: "Unicode" Bo Persson <bop@gmb.dk> - 2016-08-30 21:40 +0200
        Re: "Unicode" Daniel <danielaparker@gmail.com> - 2016-08-30 13:39 -0700
  Re: "Unicode" Mr Flibble <flibbleREMOVETHISBIT@i42.co.uk> - 2016-09-01 21:54 +0100
    Re: "Unicode" raltbos@xs4all.nl (Richard Bos) - 2016-09-03 08:00 +0000
      Re: "Unicode" Mr Flibble <flibbleREMOVETHISBIT@i42.co.uk> - 2016-09-03 14:10 -0500
        Re: "Unicode" "Alf P. Steinbach" <alf.p.steinbach+usenet@gmail.com> - 2016-09-04 09:56 +0200
          Re: "Unicode" Paavo Helde <myfirstname@osa.pri.ee> - 2016-09-04 14:37 +0300
            Re: "Unicode" "Alf P. Steinbach" <alf.p.steinbach+usenet@gmail.com> - 2016-09-05 12:53 +0200
              Re: "Unicode" Paavo Helde <myfirstname@osa.pri.ee> - 2016-09-05 15:30 +0300
                Re: "Unicode" "Alf P. Steinbach" <alf.p.steinbach+usenet@gmail.com> - 2016-09-05 16:13 +0200
                Re: "Unicode" Paavo Helde <myfirstname@osa.pri.ee> - 2016-09-05 22:03 +0300
                Re: "Unicode" "Alf P. Steinbach" <alf.p.steinbach+usenet@gmail.com> - 2016-09-05 23:54 +0200
                Re: "Unicode" Keith Thompson <kst-u@mib.org> - 2016-09-05 15:35 -0700
                Re: "Unicode" "Alf P. Steinbach" <alf.p.steinbach+usenet@gmail.com> - 2016-09-06 00:18 +0200
                Re: "Unicode" Keith Thompson <kst-u@mib.org> - 2016-09-05 16:17 -0700
                Re: "Unicode" "Alf P. Steinbach" <alf.p.steinbach+usenet@gmail.com> - 2016-09-06 01:20 +0200
                Re: "Unicode" Keith Thompson <kst-u@mib.org> - 2016-09-05 17:16 -0700
                Re: "Unicode" "Alf P. Steinbach" <alf.p.steinbach+usenet@gmail.com> - 2016-09-06 02:42 +0200
                Re: "Unicode" Mr Flibble <flibbleREMOVETHISBIT@i42.co.uk> - 2016-09-05 23:05 +0100
          Re: "Unicode" Vir Campestris <vir.campestris@invalid.invalid> - 2016-09-04 21:37 +0100
            Re: "Unicode" Paavo Helde <myfirstname@osa.pri.ee> - 2016-09-05 00:22 +0300
              Re: "Unicode" Vir Campestris <vir.campestris@invalid.invalid> - 2016-09-05 21:32 +0100
                Re: "Unicode" Paavo Helde <myfirstname@osa.pri.ee> - 2016-09-06 00:00 +0300
                Re: "Unicode" Vir Campestris <vir.campestris@invalid.invalid> - 2016-09-07 21:19 +0100
                Re: "Unicode" "Alf P. Steinbach" <alf.p.steinbach+usenet@gmail.com> - 2016-09-08 02:16 +0200

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