On 2010-09-02 21:15, Chas. Owens wrote:
my $string = do {
open my $fh, "<", "filename" or die $!;
local $/;
<$fh>;
};
To make it use less memory, write it like this:
my $string;
{
open my $fh, "<", "filename" or die $!;
local $/;
$string = <$fh>;
};
--
Ruud
--
To unsubs
> "CO" == Chas Owens writes:
CO> You may think there is more code in the while loop version, but really
CO> it there is less. File::Slurp is a pure Perl module. That means that
CO> whatever loop it is using to get the data must happen in Perl. Then
CO> you copy that data to an arra
On Thu, Sep 2, 2010 at 13:08, Uri Guttman wrote:
snip
> for the excluded hash, it is simpler and probably much faster than line
> by line. the latter way needs to run much more perl code which is slower
> than a single slice. i won't benchmark it because it is also better
> coding which is more im
> "CO" == Chas Owens writes:
CO> On Thu, Sep 2, 2010 at 04:39, Uri Guttman wrote:
CO> snip
>> if you want speed, that is not the best way to read in the file
>> lines. File::Slurp (on cpan) can do that for you and is cleaner as well:
CO> snip
CO> If there was one thing I could c
On Thu, Sep 2, 2010 at 04:39, Uri Guttman wrote:
snip
> if you want speed, that is not the best way to read in the file
> lines. File::Slurp (on cpan) can do that for you and is cleaner as well:
snip
If there was one thing I could change about this list, it would be
that to ban people from saying
Hi Stuart,
a few comments on your code.
On Wednesday 01 September 2010 21:18:10 Kryten wrote:
> Wow. Thank you Shlomi, Thank you Chas and Thank you Shawn.
>
> Hash sets seem to be the way to go here. Much quickness too!
>
> Here is what I have ( the least I can do is give you all a chance to
>
> "K" == Kryten writes:
K> Here is what I have ( the least I can do is give you all a chance to
K> laugh
K> at my code! ):-
here comes the laughter! :)
K> #!/usr/bin/perl
K> use warnings ;
put use strict in there too. you are declaring some vars, strict
enforces that you declar
Wow. Thank you Shlomi, Thank you Chas and Thank you Shawn.
Hash sets seem to be the way to go here. Much quickness too!
Here is what I have ( the least I can do is give you all a chance to
laugh
at my code! ):-
#!/usr/bin/perl
use warnings ;
my $names_file = 'C:\names.log' ;
my $exclude_list =
On 10-09-01 07:55 AM, Kryten wrote:
Hi,
I'm very much a beginner.
Could anyone point me in the right direction on how to accomplish the
following, please?
I have a fairly long log file call it file A, it has around 20,000
lines of three element space separated variables.
File A looks like:-
On Wed, Sep 1, 2010 at 07:55, Kryten wrote:
> Hi,
>
> I'm very much a beginner.
>
> Could anyone point me in the right direction on how to accomplish the
> following, please?
>
> I have a fairly long log file call it file A, it has around 20,000
> lines of three element space separated variables.
Hi Stuart,
On Wednesday 01 September 2010 14:55:21 Kryten wrote:
> Hi,
>
> I'm very much a beginner.
>
> Could anyone point me in the right direction on how to accomplish the
> following, please?
>
> I have a fairly long log file call it file A, it has around 20,000
> lines of three element spa
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