On Fri, Feb 06, 2004 at 09:46:50PM +, Ton Hospel scripsit:
See also:
echo | perl -lpe 'print q'
which outputs:
}continue{print or die qq(-p destination: $!\n)
Well, I had no problem with the thread until now! How the f... does this
work
Golfers also use the fact that in a
What does the construct }{ mean?
From perlrun:
-p causes Perl to assume the following loop around your program, which
makes it iterate over filename arguments somewhat like sed:
LINE:
while () {
...# your program goes here
} continue {
print or die -p destination: $!\n;
}
The
On Fri, Feb 06, 2004 at 11:56:16PM +0100, Leo wrote:
On Fri, Feb 06, 2004 at 09:46:50PM +, Ton Hospel scripsit:
See also:
echo | perl -lpe 'print q'
which outputs:
}continue{print or die qq(-p destination: $!\n)
Well, I had no problem with the thread until now! How the f... does
Leo [EMAIL PROTECTED] writes:
echo | perl -lpe 'print q'
which outputs:
}continue{print or die qq(-p destination: $!\n)
Well, I had no problem with the thread until now! How the f... does this
work
It gets converted to:
LINE: while (defined($_ = ARGV)) {
print
I am appalled that that works. I thought perlrun was being figurative
when it described -p, but it seems not so.
[EMAIL PROTECTED]:~/work$ perl -MO=Deparse -pe ' } { $_=foo\n' /dev/null
LINE: while (defined($_ = ARGV)) {
();
}
{
$_ = foo\n;
}
continue {
print $_;
On Fri, 06 Feb 2004 at 09:45:43 -0500, [EMAIL PROTECTED] wrote:
What does the construct }{ mean? As in
$ perl -pe ' } { $_=foo\n' /dev/null
foo
I figure it has to do with how the -p switch affects the script that
is passed to the interpreter. Is this documented anywhere?
Yes, in
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From: Allen, Greg [EMAIL PROTECTED]
Date: Fri, 6 Feb 2004 14:51:57 -
X-WSS-ID: 6C3D75871563186-01-01
X-BigFish: v
X-SMTPD: qpsmtpd/0.26, http://develooper.com/code/qpsmtpd/
It is
, 2004 3:37 PM
To: Allen, Greg
Cc: [EMAIL PROTECTED]
Subject: Re: What does }{ mean?
X-Original-To: [EMAIL PROTECTED]
Mailing-List: contact [EMAIL PROTECTED]; run by ezmlm
From: Allen, Greg [EMAIL PROTECTED]
Date: Fri, 6 Feb 2004 14:51:57 -
X-WSS-ID: 6C3D75871563186-01-01
X
From: Allen, Greg [EMAIL PROTECTED]
It would appear that any block is allowed a continue clause.
That's what threw me off.
kj
K == [EMAIL PROTECTED] writes:
K I figured that much, but then I'm left with interpreting a construct
K of the form:
Kwhile(defined($_ = ARGV)){}{$_ = foo\n}continue{print $_}
K ^^
K ??
K I didn't think such a
See also:
echo | perl -lpe 'print q'
which outputs:
}continue{print or die qq(-p destination: $!\n)
Golfers also use the fact that in a -p/-n program the next character
is a ;, for example
#!perl -alp0
s!.+!$;[EMAIL PROTECTED],$_}=%$z]=$z=$_.$[EMAIL PROTECTED],@F!eg;$_=pop@
as solution to
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