cshell bug?

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3 total messages Started by Michael Collier Mon, 22 Oct 1990 21:13

#363

Author: Michael Collier
Date: Mon, 22 Oct 1990 21:13

23 lines
1032 bytes

i execute the following piece of cshell under dynix 3.0.12:

#! /bin/csh
if(0) then
if(1) then
echo cant get here
else
echo bug
endif
endif

i get the following output:

bug

the shell is matching the "else" with the first, outermost "if", not with
the second, nested "if". can anyone tell me if this is fixed under 3.0.17?
if not, why not? thanks.
--
Michael H. Collier				INET:    collier@ariel.unm.edu
						BITNET:  COLLIER@UNMB
home: 1160 Don Pasqual NW; Los Lunas, NM 87031; (505) 865 8770
work: UNM CIRT; 2701 Campus Bvd; Albuquerque, NM 87131; (505) 277 8039

Re: cshell bug?

#364

Author: Keith Pyle
Date: Tue, 23 Oct 1990 17:52

20 lines
1470 bytes

In article <1990Oct22.211323.21097@ariel.unm.edu> collier@triton.unm.edu (Michael Collier) writes:
>i execute the following piece of cshell under dynix 3.0.12:
> ...
>the shell is matching the "else" with the first, outermost "if", not with
>the second, nested "if". can anyone tell me if this is fixed under 3.0.17?
>if not, why not? thanks.

The behavior is unchanged in Dynix 3.0.17.  It also behaves this way
under SunOS 4.0 & 4.1 and System V/386 Release 3.00 on a Unisys
U6000/51.  It does not have a problem on either Ultrix 3.1 or HP/UX
7.0.

I'll refrain from commenting on why I think it wasn't fixed in 3.0.17.
-- 
-----------------------------------------------------------------------------
Keith Pyle                                UUCP: ...!cs.utexas.edu!execu!keith
Execucom Systems Corp., Austin, Texas     Internet: keith@execu.com
"It's 10 o'clock.  Do you know where      Disclaimer: What??
   your child processes are?"                  You actually believed me?
-----------------------------------------------------------------------------

Re: cshell bug? RTM

#367

Author: John Barlow
Date: Mon, 29 Oct 1990 09:35

33 lines
1672 bytes

I run Dynix 3.0.12, and the following code works, as long as you
have the space between the "if" and the "(" :

#!/bin/csh
if (0) then
if (1) then
echo cant get here
else
echo bug
endif
endif

if you don't have the space it echos "bug".

Please note the manual (although you have to wade through 11 pages,
and then its only a few lines):

> ... It is important to note that no two components of
>     an expression can appear in the same word; except when
>
>Revision 1.22 87/08/06                                         12
>
>CSH(1)              DYNIX Programmer's Manual              CSH(1)
>
>     adjacent to components of expressions which are syntacti-
>     cally significant to the parser (`&' `|' `<' `>' `(' `)')
>     they should be surrounded by spaces.
      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

jdb = John Barlow, Parallel Computing Research Facility,
Australian National University, I-Block, PO Box 4, Canberra, 2601, Australia.
email = jdb@arp.anu.oz.au  {soon to be jdb@arp.anu.edu.au}
[International = +61 6, Australia = 06] [Phone = 2492930, Fax = 2490747]

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