On 15.12.2012 21:35, Martin wrote:
I am trying to figure out how to do that, or what I do wrong. I found
a page about $codepage, but it did not help
http://wiki.freepascal.org/LCL_Unicode_Support
I didnt find the fpc specific page, if exists (I suspect it does)
I am calling a function "function Foo(A:string)" {$mode objfpc}{$H+}
I call it with a constant, that contains an german umlaut. Checked
with a hex editor, the constant in the source file is utf8
- If I save the source (in utf8), without a utf8 BOM, then it works
fine on windows.
- If I had a bom, then the string received by the function appears to
be ascii (checked memory dump in debugger "oe" becomes d6
- if I add {$codepage utf8} it also becomes ascii
If I do *not* add that, it seems something gos wrong with the encoding
on a PowerPC Mac. Unfortunately this is someone else's pc, and I have
no more info.
If I add it things also go wrong, only different. Again no more info.
-----------
I know the provided info, is very little. If there is anything obvious
then tell me.
Thanks
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Probably this is due to significant change in FPC 2.7 RTL
*String* type implies the encoding inside
under WIndows it is ANSI by default.
Try to write simple application that concatenates (s:=a+b) two strings
with umlauted letters.
The resulting string loose the umlauts under Windows.
The only thing that help at the RTL level -
{$ifdef FPC}
SetMultiByteConversionCodePage(CP_UTF8);
{$endif}
This brings similar behaviour for RTL functions ether in Windows and
UNIX but completely breaks file IO.
You wont be able to open file which names translates to
more-than-one-byte per symbol.
because RTL IO is ANSI-specific under Windows.
Other approach - use the *UnicodeString*. Forget the *string* type.
regards,
Anton
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