stupide question

[Pascal Bourguignon]

Yes, it is.

reuss writes:
> have somebody experiences with gnustep+ncurses?
> if any, is it possible to treat ncurses *ptr-s as NSString-s?
> thanks

Objective-C is a strict superset  of C. That means that in Objective-C
programs, functions  and methods, you  can use plain old  C functions,
and in  Objective-C types and classes,  you can use plain  old C types
and structures.

So, for  one thing,  you can perfectly  use ncurses in  an Objective-C
program that uses  GNUstep. On the other hand,  ncurses is for driving
textual  terminals, not  bitmap displays,  but you  can have  either a
terminal emulation  inside a GNUstep  window, or have  a "multiheaded"
application  that has both  windows and  terminal interfaces  (or even
just a CLI tool without a GUI).

Now a  second point is  how do you  manipulate *ptr objects.   I don't
know  ncurses,  so I'll  assume  that'a a  plain  old  C string  type.
Normally, you'd use the standard  C library functions to manipulate it
(strcpy, strchr, sprintf, etc...).  If you miss some function found in
the  NSString  methods, then  you  could convert  a  C  string into  a
NSString,  do your  manipulations, and  convert  back to  a C  string.
That's  quite costly  (you  have to  copy  in and  out,  there may  be
conversions of encoding, etc), and you  would do that only if you have
really  complicated   needs  better  done  with   NSString  than  with
string.h...

 { char* cstring;
   NSMutableString* buffer=[NSMutableStrin stringWithCString:"Hello World!"];
   NSRange r={3,7};
   [buffer deleteCharactersInRange:r];
   cstring=[buffer lossyCString];
 }

-- 
__Pascal_Bourguignon__                   http://www.informatimago.com/
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