Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!wuarchive!sdd.hp.com!spool.mu.edu!uwm.edu!bionet!apple!ksand
From: ksand@Apple.COM (Kent Sandvik)
Newsgroups: comp.sys.mac.programmer
Subject: Re: MPW 3.1 C stdio question(s)
Message-ID: <49788@apple.Apple.COM>
Date: 1 Mar 91 23:49:22 GMT
References: <1991Mar1.030623.9398@cs.rochester.edu>
Organization: Apple Computer Inc., Cupertino, CA
Lines: 48

In article <1991Mar1.030623.9398@cs.rochester.edu> miller@cs.rochester.edu writes:
>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'.


The standard I/O is buffered by default, so you don't get anything before
you do a fflush (e.g. fflush(stdio); ).

MPW 3.2 will contain a library of standard I/O routines which makes
it possible to fast hack simple standalone binaries (not MPW tools)
which use standard I/O procedures. It's called SIOW. Last time I checked
the beta releases it even had default code for printing and clipboard
support.

As for a ported curses library to MPW, I don't know of any. I do know
that the curses libraries have been ported to the Think-C environment,
as part of the nethack port. John V{tte or someone else should know
the story behind that one.


Kent 'Skonk' Sandvik

-- 
Kent Sandvik, Apple Computer Inc, Developer Technical Support
NET:ksand@apple.com, AppleLink: KSAND  DISCLAIMER: Private mumbo-jumbo
Zippy++ says: "C++ was given to mankind, so that we might learn patience"