[fpc-pascal] question about changing default ASCII table in the
fpc 2.2.0 IDE
XHajT03 at hajny.biz
Mon Jul 5 22:02:37 CEST 2010
On 25 Jun 10, at 8:07, Noel and Marie wrote:
> Thanks Tomas. I didn't see your promise to look at the problem.
Sorry, it took somewhat longer, but the results are here:
1) It works as expected if _not_ using unit Crt.
2) There is a bug in implementation of unit Crt for Windows. This bug
stems from May 2006 already and it was a result of a patch from Maxim
Ganetsky trying to fix bug #6785
(http://bugs.freepascal.org/view.php?id=6785). Since that patch, all
output with unit Crt uses the so called ANSI code page under Windows
which is IMHO wrong. I've added a comment to bug #6785 and filed a
new bug report (http://bugs.freepascal.org/view.php?id=16846) - you
may want to monitor that one in order to be notified when it gets
Until the bug is fixed, there are several possible solutions for you,
- You may comment line 699 (and preferably also line 743) in your
local copy of rtl/win/crt.pp (trunk version from SVN) and recompile
RTL (and packages). That isn't a complete fix, but it should probably
be sufficient for your needs.
- If you only need to output this one particular character, you may
do so using the particular Win32 API directly. Admittedly not very
nice and certainly not portable, but at least a possible workaround.
- If you don't need unit Crt, you may simply remove it from your uses
> I have just relied on email replies for comments etc. How do I look at all
> comments, other questions, etc on the Web?
Sorry, I'm not sure if I understand this question. Do you refer to an
archive of this mailing list? If so, you can find a link on the FPC
WWW pages (under Mailing lists).
Hope this helps
> ----- Original Message -----
> From: "Tomas Hajny" <XHajT03 at hajny.biz>
> To: "FPC-Pascal users discussions" <fpc-pascal at lists.freepascal.org>
> Sent: Thursday, June 24, 2010 11:59 PM
> Subject: Re: [fpc-pascal] question about changing default ASCII table in the
> fpc 2.2.0 IDE
> On Thu, June 24, 2010 06:41, Noel and Marie wrote:
> > Hello,
> > I would like to print a square root symbol using write(chr(251)); as I
> > could before SP3 for XP was installed on my PC.
> > Currently am getting a superscript 1 rather than the square root symbol
> > from
> > write(chr(251)).
> > I've tried the following kind suggestions of Tomas Hajny, unfortunately
> > without success:
> > 1. In a command shell I entered
> > CHCP 437 and then ran the program
> > 2. Modified the source code to include the Windows unit and added line
> > setConsoleOutputCP(437);,
> > compiled and then ran the program.
> > I examined the registry settings in directory Codepage.
> > Name Data
> > (default ) (value not set)
> > ...
> > ACP 1252
> > MACCP 10000
> > OEMCP 850
> > OEMHAL vgaoem.fon
> > Changed OEMCP to 437 and got an accented 'u'. Then restored
> > the system.
> > I wonder if anyone can suggest a solution to the problem.
> I still intend to have a look at it (as promised previously), just had no
> time for that (if noone else provides answer till then).
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