Re: is correct to use waddnstr for utf8 strings?

[Thomas Dickey]

On Wed, May 01, 2019 at 04:48:01PM +0200, Pavel Stehule wrote:
> Hi
> 
> st 1. 5. 2019 v 14:39 odesílatel Pavel Stehule <address@hidden>
> napsal:
> 
> > Hi
> >
> > I try to fix some issues with utf8 chars on Solaris.
...
> I wrote small test. Looks so Solaris doesn't work correctly with 3bytes
> utf8 chars. Two bytes are ok.
> 
> Is it ncurses issue or Solaris issue?

I suspect Solaris (though I might find time on the weekend to investigate
this).

There's an additional factor that the package is probably rather old.

> 
> Pavel

> #include <ncursesw/curses.h>                                                  
>   
> #include <locale.h>                                                           
>   
> #include <string.h>                                                           
>   
>                                                                               
>   
> int main()                                                                    
>   
> {                                                                             
>   
>         /* these strings has 30 chars display width */                        
>   
>         char *str1 = "└────────────────────────────┴";                        
>   

One problem with Solaris, which I worked-around a few years ago,
is that all of the line-drawing characters are "ambiguous width",
and that Solaris' locale assigns all of those to double-width.

See

https://invisible-island.net/ncurses/NEWS.html#t20151219

and subsequent mention of Solaris.

-- 
Thomas E. Dickey <address@hidden>
https://invisible-island.net
ftp://ftp.invisible-island.net

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