Is there any quick way to use pull out keys that match a specific regex pattern?
eg
I need a fast way to get all the keys that start with 123..
Meaning I should get
only....
Currently I am looking through all the keys and using regex on them. I have over 2k such keys and it is making my program very slow. I am trying to tune it. Any suggestions are welcomed. Thank you.
hello
I have loop , in this loop im picking names , this names I want to be keys in %hash
but I don't know how to set in every loop entertain different key in the %hash (1 Reply)
Say that I want to match any of the following:
abc
def
ghi
The letters will either be "abc", "def", or "ghi", only those three patterns. The numbers will vary, but there will only be numbers between the brackets.
I've only been able to match abc, using the following:
abc.*.
I'm... (1 Reply)
Hi, sorry, two hash related questions in one day .. but this has got me a bit stuck.
I have a mysql database table that kind of looks like this, the table is called "view1" and a snippet of that table (SELECT'ing just rows with serial number 0629AN1200) is below
serial nic_name ... (2 Replies)
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 $line;
my(... (1 Reply)
Hi,
In Perl, is it possible to use a range of numbers with '..' as a key in a hash?
Something in like:
%hash = (
'768..1536' => '1G',
'1537..2560' => '2G'
);
That is, the range operation is evaluated, and all members of the range are... (3 Replies)
hi all,
i have a small problem regarding sorting the keys in a hash.
my %hash;
for($i=0;$i<19;$i++)
{
$hash{$i}=$i;
}
foreach $c (sort keys %hash)
{
print "\n $hash{$c}";
} (1 Reply)
I am trying to store this information (info and number) in hash. number is the key and info is value in a hash.i shown my code below.
#!/usr/bin/perl
use warnings;
use strict;
use XML::LibXML::Reader;
my $file;open $file, 'formal.xml');
my $reader =... (0 Replies)
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 need to search for lines starting with "Include" and later has string "httpd-ssl.conf"
like the regex should return match for "Include conf/extra/httpd-ssl.conf"
I tried the following:
^]*#;].+Include.*httpd-ssl.conf
Below is my current file:
# Secure (SSL/TLS) connections... (7 Replies)
Discussion started by: mohtashims
7 Replies
LEARN ABOUT DEBIAN
aptpkg::hash
AptPkg::hash(3pm) User Contributed Perl Documentation AptPkg::hash(3pm)NAME
AptPkg::hash - a helper class for implementing tied hashes
SYNOPSIS
use AptPkg::hash;
DESCRIPTION
The AptPkg::hash class provides hash-like access for objects which have an underlying XS implementation.
Such objects need to add AptPkg::hash to @ISA, provide get, set and exists methods, and an iterator class.
AptPkg::hash
new([XS_OBJECT])
Create a object as a tied hash. The object is implemented as a hash reference blessed into the class, which in turn is tied to
AptPkg::hash.
This means that both $obj->method() and $obj->{key} valid, the latter invoking get/set (through FETCH/STORE).
The tie associates an array reference with the hash, which initially contains a reference to the hash, the XS object and an anon hash
which may be used by subclasses to store state information.
If no XS object is passed, one is created via new in the XS class. The name of that class is constructed from the class name, by
lower-casing the last component and prefixing it with an underscore (eg. AptPkg::Config becomes AptPkg::_config).
If the module contains a @KEYS array, then the private hash will be populated with those entries as keys (see the description below of
the AptPkg::hash::method class).
_self, _xs, _priv
Accessors which may be used in subclass methods to fetch the three array elements associated with the hash reference.
keys(ARGS)
In a scalar context, creates and returns a new iterator object (the class name with the suffix ::Iter appended).
The XS object, the private hash and any arguments are passed to the constructor.
In an array context, the iterator is used to generate a list of keys which are then returned.
The iterator class must implement a next method, which returns the current key and advances to the next.
AptPkg::hash::method
The AptPkg::hash::method class extends AptPkg::hash, providing a simple way to map a fixed set of keys (defined by the @KEYS array) into
method calls on either the object, or the internal XS object.
Classes inheriting from AptPkg::hash::method should provide an iterator class which inherits from AptPkg::hash::method::iter.
AUTHOR
Brendan O'Dea <bod@debian.org>
perl v5.14.2 2012-03-16 AptPkg::hash(3pm)