Hi,
AnsiString can contain insdie UTF-8. WideString is for UTF-16 and
UCS-2, that requires more bytes then UTF-8.
Please note that each char on UTF-8 is two bytes (like AnsiString),
while UTF-16 is 4 bytes (if I remember correctly).
On 6/7/06, Alexandre Leclerc <[EMAIL PROTECTED]> wrote:
Hi all,
I see that many classes and functions are not using widestring. So i
must understand that all these are not UTF8 capable? (If I understand
UTF8, widestring would not support UTF16?).
Ok, when coding a procedure reading files (LoadFromStream/File) should
I always use widestring and then try guess if it is only normal
ansistring and if you convert ansistring to widestring in order to use
the functions?
Or do we have to always code 2 times the same function: one with wide
string, the other not. The goal of my question is to avoid coding two
times the same stuff (even if this is copy-paste, you need to maintain
the code).
Right now I code for window; no UTF8 problems for now :) But I want my
app to run under linux.
1. how do I detect UTF8/Ainsi files? Is this possible? (I talk about
text files for now).
Theoreticly you need to see how many bytes you need to enter in order
to have one char (use hex-editor for better view by your eyes).
but on real life, it's almost impossible to detect such things...
thats why most programs gives you the ability to change it while
loading/working.
2. what is a #32 char in widechar? #xx#32? (I do comparisons like 'if
pchar = #32 then'... I don't know how to translate this.
In the Unicode world, each language have it's own "space" char... But
the regular ASCII english values are still the same, only that it have
another byte before of them.
3. in TStringList.LoadFromStream... there are no widestring... how
could a widestring version be done so that LoadFromStream(ansi) would
call after convertion (?) to wide string LoadFromStream(widestring)?
You need to implement it by yourself . In order to load a widestring
file, you should do something like so:
var
f : file of widestring;
s : widestring;
assignfile (f, file_to_open);
reseat (f);
readln (f, s);
...
closefile(s);
(In fact I'm asking all this to start coding for the future right now.)
Best regards.
--
Alexandre Leclerc
Ido
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