Re: [fltk.general] Fl_Input replace() with UTF-8 strings

[chris]

Forgot to mention:
System: FLTK 1.3 current SVN, Linux.


> Hello,
>
> I have a question in regarding use of the Fl_Input::insert() method
> in combination with UTF-8 strings.
>
> If I want to insert a text after the second UTF-8 character, it
> would seem natural to use:
>
> ---- snip ----
> #include <FL/Fl_Input.H>
> #include <stdio.h>
> int main()
> {
>   Fl_Input t(0,0,0,0);
>   t.value( "ДБИЯ" );
>   t.position( 2 );
>   printf( "t.value(): '%s' size=%d\n", t.value(), t.size());
>   t.insert( "Ж" );
>   printf( "t.value(): '%s' size=%d\n", t.value(), t.size());
>   printf( "t.position(): %d\n", t.position());
> }
> ---- snip ----
>
> But it looks like position(2) sets the position to the byte-offset 2
> and not after the second *UTF-8 character*, as the outcome is:
>
> ---- snip ----
> t.value(): 'ДБИЯ' size=8
> t.position(): 2
> t.value(): 'ДЖБИЯ' size=10
> t.position(): 4
> ---- snip ----
>
>
> How is it supposed to be done and is this the desired behaviour?
>
> chris
>


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