Hello,
I have parsed an xml file using perl to get the hash values and the output looks like this
$VAR1 = {
'RT' => {
'List' => {
'String' => ... (1 Reply)
Can Someone explain me why even using Tie::IxHash I can not get the output data in the same order that it was inserted? See code below.
#!/usr/bin/perl
use warnings;
use Tie::IxHash;
use strict;
tie (my %programs, "Tie::IxHash");
while (my $line = <DATA>) {
chomp $line;
my(... (1 Reply)
I have the perl data structure and what i need to do is find all values in
@{$extractColumns{'2'}{'D'}} which are not there in @{$extractColumns{'2'}{'M'}} but seems like i need to put a flag somewhere and i messed up
foreach my $order (keys %extractColumns)
{
foreach my $value... (2 Replies)
Hi,
In Perl, is it possible to use a range of numbers with '..' as a key in a hash?
Something in like:
%hash = (
'768..1536' => '1G',
'1537..2560' => '2G'
);
That is, the range operation is evaluated, and all members of the range are... (3 Replies)
I have a file containing data like so:
2012-01-02 GREEN 4
2012-01-02 GREEN 6
2012-01-02 GREEN 7
2012-01-02 BLUE 4
2012-01-02 BLUE 3
2012-01-02 GREEN 4
2012-01-02 RED 4
2012-01-02 RED 8
2012-01-02 GREEN 4
2012-01-02 YELLOW 5
2012-01-02 YELLOW 2
I can't always predict what the... (4 Replies)
I want to sort values of a hash in ascending order.
my %records;
for my $value (sort values %records){print $value,"\n";}
When I use the above code I get values in this order: 1,10,11,2,3,4,5,6,7,8,9. But, I need values in my output in this order: 1,2,3,4,5,6,7,8,9,10,11.
Can Someone... (1 Reply)
Hi,
I have an hashes of hash, where hash is dynamic, it can be n number of hash. i need to compare data_count values of all .
my %result (
$abc => {
'data_count' => '10',
'ID' => 'ABC122',
}
$def => {
'data_count' => '20',
'ID' => 'defASe',
... (1 Reply)
I'm filling in a table of values for grades. I decided to go with reading into a hash from the files but I'm coming up with an error when printing a value that does not exist. I need to know if I can on-the-fly print a space (" ") or blank in place of the grade.
Here's what the output should... (2 Replies)
I am trying to speed up creating a line by line hash file from a huge file using Perl.
Here is my current (working but too slow) Bash code:
(while read line; do hash=$(echo -n $line | md5sum); echo ${hash:0:32}; done)And here is my Perl code:
perl -MDigest::MD5 -le 'foreach $line ( <STDIN> )... (3 Replies)
Discussion started by: Michael Stora
3 Replies
LEARN ABOUT DEBIAN
regexp::reggrp
Regexp::RegGrp(3pm) User Contributed Perl Documentation Regexp::RegGrp(3pm)NAME
Regexp::RegGrp - Groups a regular expressions collection
VERSION
Version 1.002
DESCRIPTION
Groups regular expressions to one regular expression
SYNOPSIS
use Regexp::RegGrp;
my $reggrp = Regexp::RegGrp->new(
{
reggrp => [
{
regexp => '%name%',
replacement => 'John Doe',
modifier => $modifier
},
{
regexp => '%company%',
replacement => 'ACME',
modifier => $modifier
}
],
restore_pattern => $restore_pattern
}
);
$reggrp->exec( $scalar );
To return a scalar without changing the input simply use (e.g. example 2):
my $ret = $reggrp->exec( $scalar );
The first argument must be a hashref. The keys are:
reggrp (required)
Arrayref of hashrefs. The keys of each hashref are:
regexp (required)
A regular expression
replacement (optional)
Scalar or sub.
A replacement for the regular expression match. If not set, nothing will be replaced except "store" is set. In this case the
match is replaced by something like sprintf("x01%dx01", $idx) where $idx is the index of the stored element in the store_data
arrayref. If "store" is set the default is:
sub {
return sprintf( "x01%dx01", $_[0]->{store_index} );
}
If a custom restore_pattern is passed to to constructor you MUST also define a replacement. Otherwise it is undefined.
If you define a subroutine as replacement an hashref is passed to this subroutine. This hashref has four keys:
match Scalar. The match of the regular expression.
submatches Arrayref of submatches.
store_index The next index. You need this if you want to create a placeholder and store the replacement in the
$self->{store_data} arrayref.
opts Hashref of custom options.
modifier (optional)
Scalar. The default is 'sm'.
store (optional)
Scalar or sub. If you define a subroutine an hashref is passed to this subroutine. This hashref has three keys:
match Scalar. The match of the regular expression.
submatches Arrayref of submatches.
opts Hashref of custom options.
A replacement for the regular expression match. It will not replace the match directly. The replacement will be stored in the
$self->{store_data} arrayref. The placeholders in the text can easily be rereplaced with the restore_stored method later.
restore_pattern (optional)
Scalar or Regexp object. The default restore pattern is
qr~x01(d+)x01~
This means, if you use the restore_stored method it is looking for x010x01, x011x01, ... and replaces the matches with
$self->{store_data}->[0], $self->{store_data}->[1], ...
EXAMPLES
Example 1
Common usage.
#!/usr/bin/perl
use strict;
use warnings;
use Regexp::RegGrp;
my $reggrp = Regexp::RegGrp->new(
{
reggrp => [
{
regexp => '%name%',
replacement => 'John Doe'
},
{
regexp => '%company%',
replacement => 'ACME'
}
]
}
);
open( INFILE, 'unprocessed.txt' );
open( OUTFILE, '>processed.txt' );
my $txt = join( '', <INFILE> );
$reggrp->exec( $txt );
print OUTFILE $txt;
close(INFILE);
close(OUTFILE);
Example 2
A scalar is requested by the context. The input will remain unchanged.
#!/usr/bin/perl
use strict;
use warnings;
use Regexp::RegGrp;
my $reggrp = Regexp::RegGrp->new(
{
reggrp => [
{
regexp => '%name%',
replacement => 'John Doe'
},
{
regexp => '%company%',
replacement => 'ACME'
}
]
}
);
open( INFILE, 'unprocessed.txt' );
open( OUTFILE, '>processed.txt' );
my $unprocessed = join( '', <INFILE> );
my $processed = $reggrp->exec( $unprocessed );
print OUTFILE $processed;
close(INFILE);
close(OUTFILE);
AUTHOR
Merten Falk, "<nevesenin at cpan.org>"
BUGS
Please report any bugs or feature requests through the web interface at http://github.com/nevesenin/regexp-reggrp-perl/issues
<http://github.com/nevesenin/regexp-reggrp-perl/issues>.
SUPPORT
You can find documentation for this module with the perldoc command.
perldoc Regexp::RegGrp
COPYRIGHT & LICENSE
Copyright 2010, 2011 Merten Falk, all rights reserved.
This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself.
perl v5.14.2 2012-02-18 Regexp::RegGrp(3pm)