Thread View: comp.bugs.sys5
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2 total messages
Started by Dale Worley
Mon, 26 Oct 1987 16:26
New (UnixTC) awk - warning
Author: Dale Worley
Date: Mon, 26 Oct 1987 16:26
Date: Mon, 26 Oct 1987 16:26
23 lines
1113 bytes
1113 bytes
root@investor.UUCP (Bob Peirce) writes:
> 'BEGIN {
> stuff
> }{
> more stuff
> }'
>
> The manual
> states on p.22 that "The opening brace of an action must be on the
> same line as the pattern it accompanies."
Eh? As far as I can tell, the pattern is an implied "all lines",
physically represented by the null string immediately preceeding the
open brace. And that null string is on the same line as the open
brace.
What am I missing?
Dale
--
Dale Worley Cullinet Software ARPA: culdev1!drw@eddie.mit.edu
UUCP: ...!seismo!harvard!mit-eddie!culdev1!drw
If you get fed twice a day, how bad can life be?
Re: New (UnixTC) awk - warning
Author: Brandon Allbery
Date: Sat, 31 Oct 1987 03:32
Date: Sat, 31 Oct 1987 03:32
31 lines
1756 bytes
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As quoted from <1697@culdev1.UUCP> by drw@culdev1.UUCP (Dale Worley):
+---------------
| root@investor.UUCP (Bob Peirce) writes:
| > 'BEGIN {
| > stuff
| > }{
| > more stuff
| > }'
| >
| > states on p.22 that "The opening brace of an action must be on the
| > same line as the pattern it accompanies."
|
| Eh? As far as I can tell, the pattern is an implied "all lines",
| physically represented by the null string immediately preceeding the
| open brace. And that null string is on the same line as the open
| brace.
| What am I missing?
+---------------
That the format of an awk "rule" is
pattern action \n
In particular, the pattern MUST be the first thing on the line. I have been
writing awk scripts with this in mind the whole time that I have used awk;
as a result, my scripts are compatible. Using undocumented behavior is a
good way to be burned by changes to a program.
--
Brandon S. Allbery necntc!ncoast!allbery@harvard.harvard.edu
{harvard!necntc,well!hoptoad,sun!mandrill!hal,uunet!hnsurg3}!ncoast!allbery
"Uncle _who_?" -- Lt. Worf ^^^^^^^^^^^^^ NOTE NEW PATH!
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