Path: utzoo!dciem!nrcaer!scs!spl1!laidbak!att!ihnp4!ucbvax!ADS.COM!hokey%plus5
From: hokey%plus5@ADS.COM (Hokey)
Newsgroups: comp.std.c
Subject: Re: compressed maps
Message-ID: <2447@plus5.UUCP>
Date: 4 Jun 88 17:21:45 GMT
Article-I.D.: plus5.2447
References: <478@ontenv.UUCP> <3096@cognos.UUCP>
Sender: daemon@ucbvax.BERKELEY.EDU
Reply-To: hokey%plus5@ads.com (Hokey)
Organization: Plus Five Computer Services, St. Louis, MO
Lines: 18
Summary: We need more than freopen().


I just made some small changes to parse.y which examined the file name.
If the name ends in .Z, make input come from a pipe from zcat.

This has been working for me since V8 pathalias.

This does point out a shortcoming in the stdio routines.

It would be really nice to have [fp][fp]reopen() routines, to handle
all the possible combinations of "Close the old file/pipe and make it
a new file/pipe".

Another possibility would be to have a preopen() function.  In this case,
both freopen() and preopen() would have to be able to properly close whatever
(either a file or a pipe) is currently associated with the FILE before opening
the new file or pipe.
-- 
Hokey