regex occurrences
I found this bit of code somewhere, and I've used it whenever I need to
count occurrences of something. It doesn't require any extra temp variables.
It works although I don't know why. Perhaps someone can explain exactly
what's happening here...
#count t
;
Is the same but the first just eliminates the temporary.
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED]]On Behalf Of
Adrian Brinton
Sent: Sat December 14 2002 05:58
To: [EMAIL PROTECTED]
Subject: Re: Re: Counting regex occurrences
I found this bit of code
On 14.12.2002 11:57 Uhr, "Adrian Brinton" <[EMAIL PROTECTED]> wrote:
>
> #count the occurrences of "a"
> $string = "aaabbbcccddd";
> $count = () = $string =~ /a/g;
> print "Count is $count\n";
>
This is really cool ! I never ever seen this kind of line. Is there any rule
or document snipe or exp
ences of "a"
$string = "aaabbbcccddd";
$count = () = $string =~ /a/g;
print "Count is $count\n";
Adrian Brinton
> - Original Message -
> From: "Coonfield, Ben CONT" <[EMAIL PROTECTED]>
> Date: Thu, 12 Dec 2002 15:12:09 -0500
> To: [EMAIL PROTEC
h then get forced to scalar
# based on composition of $b
$b = ($a =~ tr/a/a/);
# verify we counted the number of 'a's in $a
print $b;
# bye
exit;
-Original Message-
From: Coonfield, Ben CONT [mailto:[EMAIL PROTECTED]]
Sent: Thursday, December 12, 2002 12:12 PM
To: [EMAIL PROT
It seems like there should be a simpler way to count the number of
occurrences of a regular expression. For example:
@temp= / Current Value: /g;
$count=@temp;
I don't really care about @temp, I only want to get the value for $count.
So how can I do this without creating a (named) temporary varia
