Duncan Gibson wrote:
> "fl_everything_to_utf8()"
Hmm, but isn't that what iconv(3) is for?
I'm not sure, but I think that was the rationale behind FLTK
not providing that. I think the edict was: FLTK would support
ascii and valid utf8 only; everything else would yield
undefined behavior.
I'm thinking it shouldn't be an FLTK issue if someone supplies
non-utf8 strings and gets weird behaviors or a crash.
I think that was the rationale behind not having an
fl_everything_to_utf8(), but I might be over simplifying.
I'm perhaps outta my league replying to this thread; I try to
know as little as possible about Unicode, and didn't know what
'surrogates' were in this context till I looked it up.
Sounds like surrogate pairs are a kind of UTF-16 encoded Unicode,
which sounds like non-utf8, something GNU iconv lib could convert?
I had a similar situation where I was using O'ksi'D's utf8 fork
to display Japanese text, and ran into some text that wouldn't display
correctly. Turned out it was SJIS encoded japanese (non-utf8), and had
to add iconv() to my code to do the conversion, then it worked fine.
Had to find a Windows version of iconv, but that wasn't too hard IIRC.
The code I ended up with was something like:
const iconv_t ierr = (iconv_t)-1;
const size_t serr = (size_t)-1;
static iconv_t it = ierr;
// Open iconv conversion (if not already)
if ( it == ierr ) {
const char *from = "SJIS"; // input text we want to
convert
const char *to = "UTF-8"; // desired output format
(FLTK always utf8)
it = iconv_open(to, from);
}
// Assuming iconv_open() worked, pump SJIS strings into it,
convert to utf8
if ( it != ierr ) {
if ( iconv(it, // SJIS->UTF8 open
descriptor
&in_buf, &in_siz, // input string
&out_buf, &out_siz // output string
) == serr ) {
// conversion error
} else {
// success -- add terminating NULL, display utf8 string
in FLTK
}
}
I imagine similar code could be used to convert the UTF-16 -> UTF-8?
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