While I agree that it would be a good homework assignment it's not.
What I have is a logic look up table for health records using an EAV
model (in an SQL table):
rowID - key - value
From a web form I select some keys and values. When submitted, I
create a new rowID and put in the
from perldoc -f exists:
Given an expression that specifies a hash element or array element, returns
true if the specified element in the hash or array has ever been initialized,
even if the corresponding value is undefined. The element is not autovivified
if it doesn't exist.
for details se
> if( exists $data{$key} ){
>print "\t\$data{$key} exists\n";
Hi:
thanks for your kind help.
Could I get the conclusion that exists is only used for determining
the element of hash and arrays?
appreciate your help,
miloody
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Peter Scott wrote:
On Mon, 06 Oct 2008 09:05:37 -0700, (Randal L. Schwartz) wrote:
"Praveena" == Praveena Vittal <[EMAIL PROTECTED]> writes:
Praveena> Do you have any idea that these books are available online?
Many of them, Only illegally. Don't be a pirate. Don't steal f
On Mon, 06 Oct 2008 09:05:37 -0700, (Randal L. Schwartz) wrote:
>> "Praveena" == Praveena Vittal <[EMAIL PROTECTED]> writes:
>
> Praveena> Do you have any idea that these books are available online?
>
> Many of them, Only illegally. Don't be a pirate. Don't steal from me.
Now, now. Many o
-Original Message-
From: Rob Dixon [mailto:[EMAIL PROTECTED]
Sent: Monday, October 06, 2008 12:37 PM
To: Perl Beginners
Cc: Randal L. Schwartz; Mr. Shawn H. Corey
Subject: Re: combinations
What are the real-world problems that are solved using a list of
combinations of
sets of items?
Ro
> "Rob" == Rob Dixon <[EMAIL PROTECTED]> writes:
Rob> The homework aroma entices me to respond with another question -
Rob> hopefully an educational one. I hadn't thought of watermarking them
Rob> though - good idea :)
I didn't come up with the watermark idea. Can't remember where I saw it..
loody wrote:
>
> I have to compare 2 values which is represented by 2 bytes as 0x
> and 0x00fe in 2's complement system.
> so the difference between them should be -1 - 254 =-255.
> but before do such calculation, I have to translate 0x as -1.
> Is there build-in function in perl for me to
Mr. Shawn H. Corey wrote:
> Rob Dixon wrote:
>>
>> My example wasn't a nested one. It was just an example of two incorrect brace
>> matches as the OP described them.
>
> You make it sound like I just discovered them and haven't been using
> them for the past 30 years.
If you have been using state
loody wrote:
Dear all:
Hello,
I want to use hash to keep my records.
But before using it, I want to determine whether the value of the key exist?
perldoc -q "What.s the difference between .delete. and .undef. with hashes"
John
--
Perl isn't a toolbox, but a small machine shop where you
ca
loody wrote:
Dear all:
Hello,
I have to compare 2 values which is represented by 2 bytes as 0x
and 0x00fe in 2's complement system.
so the difference between them should be -1 - 254 =-255.
but before do such calculation, I have to translate 0x as -1.
Is there build-in function in perl
On Mon, 2008-10-06 at 12:12 +0100, Rob Dixon wrote:
> Mr. Shawn H. Corey wrote:
> > On Fri, 2008-10-03 at 12:38 +0100, Rob Dixon wrote:
> >> Mr. Shawn H. Corey wrote:
> >>>
> >>> Note that if these structures can be nested, you will have to use a FSA
> >>> with a push-down stack.
> >>
> >> That wil
Randal L. Schwartz wrote:
>> "Peter" == Peter Scott <[EMAIL PROTECTED]> writes:
>
> Peter> Did you see the smiley? Randal might have been more inclined to give a
> Peter> less cute answer if the poster said what he wanted this for, because it
> Peter> does sound like homework.
>
> Precisely.
Mr. Shawn H. Corey wrote:
> On Mon, 2008-10-06 at 09:02 -0700, Randal L. Schwartz wrote:
>>
>> As in, my answer started with a joke. Hence the smiley. But I did have a
>> puzzling question about this recurring need for "all combinations" and
>> always stated rather abstractly, without the real-wo
Have you tried the standard Net::SSH does it not work with cisco devices?
On Mon, Oct 6, 2008 at 1:22 PM, Paul <[EMAIL PROTECTED]> wrote:
> I've searched CPAN, but have not found an equivalent module such as
> Net::Telnet::Cisco for SSH (SSH2). Is there one somewhere out there?
> Thanks.
>
>
>
>
Randal L. Schwartz wrote:
>> ""Mr" == "Mr Shawn H Corey" <[EMAIL PROTECTED]> writes:
>
> "Mr> On Sun, 2008-10-05 at 21:30 -0700, Randal L. Schwartz wrote:
>>> Eh? My question has *nothing* to do with my solution. My question
>>> has to do with the original question.
>
> "Mr> And my question
Jordi Moles Blanco schreef:
> my $path = $ARGV[3];
my ($path) = $ARGV[3] =~
m{ ^# SOB
(# start capturing
(?:# start group
/ # a slash
[a-z]+ # followed by 1 or more lowercase letters
)
Vyacheslav Karamov wrote:
> Hi All!
>
> I need to capture cite numbers, but I have an extra values. I need to
> capture cites, not figures, chapters and so on.
> For example in "[see 9; Figure 7]", only "9" i.e. citation number must
> be captured.
>
>
> my $regex = qr
> {
> (
I've searched CPAN, but have not found an equivalent module such as
Net::Telnet::Cisco for SSH (SSH2). Is there one somewhere out there?
Thanks.
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Vyacheslav Karamov schreef:
> 6 - wrong. I don't understand why 6 instead of 60 was captured.
Change your "[1-9]+" to "[1-9][0-9]*".
--
Affijn, Ruud
"Gewoon is een tijger."
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[EMAIL PROTECTED] schreef:
> i keep on getting this error in httpd log when i run a perl script
> which uses cache::fastmmap
Does it actually use cache::fastmmap, or Cache::FastMmap?
--
Affijn, Ruud
"Gewoon is een tijger."
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On Mon, 2008-10-06 at 09:02 -0700, Randal L. Schwartz wrote:
> As in, my answer started with a joke. Hence the smiley. But I did
> have a
> puzzling question about this recurring need for "all combinations" and
> always
> stated rather abstractly, without the real-world need backing it up.
>
Yo
> "Praveena" == Praveena Vittal <[EMAIL PROTECTED]> writes:
Praveena> Do you have any idea that these books are available online?
Many of them, Only illegally. Don't be a pirate. Don't steal from me.
I'm here to try to help you, but if you steal from me, what's my
motivation?
--
Randal L
> "Peter" == Peter Scott <[EMAIL PROTECTED]> writes:
Peter> Did you see the smiley? Randal might have been more inclined to give a
Peter> less cute answer if the poster said what he wanted this for, because it
Peter> does sound like homework.
Precisely. If it smells like homework to me, I t
> ""Mr" == "Mr Shawn H Corey" <[EMAIL PROTECTED]> writes:
"Mr> On Sun, 2008-10-05 at 21:30 -0700, Randal L. Schwartz wrote:
>> Eh? My question has *nothing* to do with my solution. My question
>> has to do with the original question.
"Mr> And my question is why isn't these abilities of glob
> From: Jeff Pang [mailto:[EMAIL PROTECTED]
> Sent: 06 October 2008 14:37
> To: Praveena Vittal
> Cc: beginners@perl.org
> Subject: Re: certification for perl
>
> > Message du 06/10/08 15:31
> > De : "Praveena Vittal"
> > A : "Jeff Pang"
> > Copie à : beginners@perl.org
> > Objet : Re: certificati
2008/10/6 Dermot <[EMAIL PROTECTED]>:
> Hi,
>
> use HTTP::Request::Common qw(POST);
>
> my $req = POST $url, [user => '[EMAIL PROTECTED]', passwd =>
> 'B3NzaC1yo7393Cbonx2a1xd562LiCjtYwU7LAb' , contrib => $code];
>
That was wrong of me. I should have tested more before I hit send. Of
course
Hi,
I am trying to configure a POST request using LWP to post the hash below.
my %test = (
user=> '[EMAIL PROTECTED]',
passwd => 'B3NzaC1yo7393Cbonx2a1xd562LiCjtYwU7LAb',
contrib => $code,
name => $name,
id
Hi All!
I need to capture cite numbers, but I have an extra values. I need to
capture cites, not figures, chapters and so on.
For example in "[see 9; Figure 7]", only "9" i.e. citation number must
be captured.
my $regex = qr
{
(?i)
On Mon, 2008-10-06 at 07:11 -0700, [EMAIL PROTECTED] wrote:
> Hi,
>
> I have large file in following format:
>
> ID | Time | IP | Code
>
>
> Now I want to write script that will cluster data by IP addr. and
> count total number of IDs for corresponding IP.
>
> I am new to perl.
>
>
#!/usr/b
> Message du 06/10/08 17:03
> De : "[EMAIL PROTECTED]"
> A : beginners@perl.org
> Copie à :
> Objet : data from file
>
>
> Hi,
>
> I have large file in following format:
>
> ID | Time | IP | Code
>
>
> Now I want to write script that will cluster data by IP addr. and
> count total number of IDs for
Hi,
I have large file in following format:
ID | Time | IP | Code
Now I want to write script that will cluster data by IP addr. and
count total number of IDs for corresponding IP.
I am new to perl.
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En/na Raymond Wan ha escrit:
Hi Jordi,
Jordi Moles Blanco wrote:
1. how can i "untain" that var?
2. can i modify the way that snmp works to disable that "-T" flag
when it passes the control to the perl script?
i've tried to untain the var with any means i've found, like this one:
***
On Mon, 2008-10-06 at 22:35 +0900, Raymond Wan wrote:
> Try:
>
> if (defined $hash{$key}) {
> ...
>
Defined is not the same as exists.
#!/usr/bin/perl
use strict;
use warnings;
my %data = (
b => undef,
c => 1,
);
for my $key ( qw( a b c ) ){
print "\$key = $key\n";
if( exists $data{$
On Sun, 05 Oct 2008 19:06:35 -0400, Mr. Shawn H. Corey wrote:
> On Sun, 2008-10-05 at 15:11 -0700, Randal L. Schwartz wrote:
>> my @result = map [split /-/], glob "{a}-{b,c}-{d,e,f}-{a}";
>>
>> :-)
>>
>> But seriously, why does this come up often?
>
> Because your solution relies on knowledge of
Jeff,
So many new books i heard.
Do you have any idea that these books are available online?
Thanks,
Praveena
Jeff Pang wrote:
Who asked you for that? Ok you say you have read all the books below, that will
be enough for a certification. :-)
Advanced Perl Programming - O'Reilly 1999.p
> Message du 06/10/08 15:40
> De : "[EMAIL PROTECTED]"
> A : beginners@perl.org
> Copie à :
> Objet : Cache::FastMmap
>
>
> Cache::FastMmap does not support threads sorry at /usr/lib/perl5/
> site_perl/5.8.5/i386-linux-thread-multi/Cache/FastMmap.pm line 1134
>
You should re-install Perl and
Cache::FastMmap does not support threads sorry at /usr/lib/perl5/
site_perl/5.8.5/i386-linux-thread-multi/Cache/FastMmap.pm line 1134
hi all,
i keep on getting this error in httpd log when i run a perl script
which uses cache::fastmmap
how can i rectify this and run script successfully
i checke
> Message du 06/10/08 15:31
> De : "Praveena Vittal"
> A : "Jeff Pang"
> Copie à : beginners@perl.org
> Objet : Re: certification for perl
>
> Jeff,
>
> So many new books i heard.
>
> Do you have any idea that these books are available online?
>
I don't know if they all are free o
Hi Miloody,
Try:
if (defined $hash{$key}) {
...
Ray
loody wrote:
Dear all:
I want to use hash to keep my records.
But before using it, I want to determine whether the value of the key exist?
Below is my source code:
if($hash{$key} eq "")
{
print "the value of the $key is empty\n";
> Message du 06/10/08 15:25
> De : "loody"
> A : "Perl beginners"
> Copie à :
> Objet : How to check empty hash value properly?
>
>
> Dear all:
> I want to use hash to keep my records.
> But before using it, I want to determine whether the value of the key exist?
> Below is my source code:
> if($ha
On Mon, 2008-10-06 at 21:18 +0800, loody wrote:
> Dear all:
> I have to compare 2 values which is represented by 2 bytes as 0x
> and 0x00fe in 2's complement system.
> so the difference between them should be -1 - 254 =-255.
> but before do such calculation, I have to translate 0x as -1.
>
Who asked you for that? Ok you say you have read all the books below, that will
be enough for a certification. :-)
Advanced Perl Programming - O'Reilly 1999.pdf
Advanced Perl Programming, 2nd Edition (2005).chm
Automating Windows with Perl - Miller Freeman 1999.pdf
Beginning Perl - Wrox 2000.pdf
Dear all:
I want to use hash to keep my records.
But before using it, I want to determine whether the value of the key exist?
Below is my source code:
if($hash{$key} eq "")
{
print "the value of the $key is empty\n";
$hash{$key}=1;
}
else
{
$hash{$key}++;
}
It works but I wi
Dear all:
I have to compare 2 values which is represented by 2 bytes as 0x
and 0x00fe in 2's complement system.
so the difference between them should be -1 - 254 =-255.
but before do such calculation, I have to translate 0x as -1.
Is there build-in function in perl for me to use, or should
From: Rob Coops
On Mon, Oct 6, 2008 at 2:16 PM, Praveena Vittal
<[EMAIL PROTECTED]>wrote:
> > I like to do some certification in perl,but i could not get any
information
> > about the available certifications in perl .
> >
> > Could anyone help me in this?
> >
>
> Oh, boy that is a can of worms
Hi Jordi,
Jordi Moles Blanco wrote:
1. how can i "untain" that var?
2. can i modify the way that snmp works to disable that "-T" flag when
it passes the control to the perl script?
i've tried to untain the var with any means i've found, like this one:
*
$path =~ s/;//g;
*
On Mon, 2008-10-06 at 04:51 -0700, irata wrote:
> perl -e '$text = "(7) 32"; printf "[%s][%s]\n", ( $text =~ /\((\d+)
> \)\s+(\d+)/ )'
$ perl -e '$text = "(7) 32"; printf "[%s][%s]\n", ( $text =~ /\((\d+)
> \)\s+(\d+)/ )'
[][]
$ perl -e '$text = "(7) 32"; printf "[%s][%s]\n", ( $text =~
It looks there is a space there..
# perl -e '$text = "(7) 32"; printf "[%s][%s]\n", ( $text =~ /\((\d+)
\)\s+(\d+)/ )'
[][]
# perl -e '$text = "(7) 32"; printf "[%s][%s]\n", ( $text =~
/\((\d+)\)\s+(\d+)/ )'
[7][32]
On Mon, Oct 6, 2008 at 2:51 PM, irata <[EMAIL PROTECTED]> wrote:
> Hello,
Hello,
can someone explain me, why this short regex don't give the result I
expect:
perl -e '$text = "(7) 32"; printf "[%s][%s]\n", ( $text =~ /\((\d+)
\)\s+(\d+)/ )'
I supposed that the output is "[7][32]", but the output is "[][]". I
don't know why...
Regards...
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On Mon, Oct 6, 2008 at 2:16 PM, Praveena Vittal <[EMAIL PROTECTED]>wrote:
> Hi All,
>
> I like to do some certification in perl,but i could not get any information
> about the available certifications in perl .
>
> Could anyone help me in this?
>
> Thanks,
> Praveena
>
Oh, boy that is a can of w
Hi All,
I like to do some certification in perl,but i could not get any
information about the available certifications in perl .
Could anyone help me in this?
Thanks,
Praveena
hi,
I'm really struggling with this and i would very pleased if you could
help me.
I'm using a perl script to extend snmp functionality.
As you already now, when snmp "passes" the control to the perl script,
it enables the flag "-T" . Therefore, the problem is that i can't use
any tainted v
From: org chen <[EMAIL PROTECTED]>
> I have a huge file, there are 47,286,116 lines. I am search a line and
> repalce this line with another string. I know this line is between
> 20,000,000th to 30,000,000th lines. Which way is more fast and safe:
And is the string exactly as long as the original
Mr. Shawn H. Corey wrote:
> On Fri, 2008-10-03 at 12:38 +0100, Rob Dixon wrote:
>> Mr. Shawn H. Corey wrote:
>>>
>>> Note that if these structures can be nested, you will have to use a FSA
>>> with a push-down stack.
>>
>> That will match a line like
>>
>> [wrong) and (wrong]
>>
>> Rob
>>
>
> No
Mr. Shawn H. Corey wrote:
> On Sun, 2008-10-05 at 21:30 -0700, Randal L. Schwartz wrote:
>>
>> Eh? My question has *nothing* to do with my solution. My question
>> has to do with the original question.
>
> And my question is why isn't these abilities of glob described in
> perldoc?
They are des
On Sun, 2008-10-05 at 21:30 -0700, Randal L. Schwartz wrote:
> Eh? My question has *nothing* to do with my solution. My question
> has to do with the original question.
And my question is why isn't these abilities of glob described in
perldoc?
--
Just my 0.0002 million dollars worth,
Sh
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