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From: miller@cs.rochester.edu
Newsgroups: comp.sys.mac.programmer
Subject: MPW 3.1 C stdio question(s)
Message-ID: <1991Mar1.030623.9398@cs.rochester.edu>
Date: 1 Mar 91 03:06:23 GMT
Sender: miller@cs.rochester.edu (Brad Miller)
Organization: University of Rochester Computer Science Department
Lines: 42

Hi,

I'm trying to get a couple of UNIX-type programs up under the MPW
shell. Nothing *too* bizzare, but I can't seem to get much working...
in particular I need to do raw i/o to the console, and send control
information as well (e.g. clear to end of line, move cursor, etc.).
Similar to the CONSOLE library in THINK C, or the CURSES package in
unix.

But I'm stuck. Not only isn't there any console control defined in
the C or MPW manuals (if there is, please point me to it!), but something
simple like

main (){
   setbuf(stdin, NULL);
   setbuf(stdout, NULL);
   while (getchar() != NULL){
	     putchar('x');
   }
}

compiled and linked to be a tool, I'd expect on running it that every
char I type would cause an x to be printed, but actually the input is echoed
and nothing is printed until I do command-ret. when I get a single 'x'.

Is there any way to get unbuffered, no echo, no editing input from the
worksheet? (or stdin whatever it turns out to be?)

Is there any way to control the worksheet from a tool, e.g. clearing the
screen, getting the size of the screen, etc. I'd like to get this tool
up (for personal use) asap, rather than have to learn how to do everything
via mac windows and a large port...

Thanks for any help,
(probably a mailed response would be best; I can summarize)

<<I'm trying to do this in MPW because I prefer working in it than THINK,
but if worst comes to worst, I suppose I can get the tool up over there>>.

Regards,
Brad Miller
miller@cs.rochester.edu