Sponsored Content
Top Forums Shell Programming and Scripting Perl: Any quick way to use regex on hash keys? Post 302428418 by Leion on Thursday 10th of June 2010 12:43:12 AM
Old 06-10-2010
Perl: Any quick way to use regex on hash keys?

Hi,

Is there any quick way to use pull out keys that match a specific regex pattern?

eg
Code:
%hash ;
$hash(123,456) = xxx;
$hash(123,457) = xxx;
$hash(123,458) = xxx;
$hash(223,459) = xxx;

I need a fast way to get all the keys that start with 123..
Meaning I should get
Code:
$hash(123,456) = xxx;
$hash(123,457) = xxx;
$hash(123,458) = xxx;

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.

Last edited by Leion; 06-10-2010 at 02:44 AM..
 

9 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

How to set dynamically keys names in perl %hash

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)
Discussion started by: umen
1 Replies

2. Shell Programming and Scripting

Quick regex question

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)
Discussion started by: retrovertigo
1 Replies

3. Shell Programming and Scripting

PERL - another quick hash of hashes question

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)
Discussion started by: hcclnoodles
2 Replies

4. Shell Programming and Scripting

Perl Hash:Can not keep hash data in the same order that it was inserted

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)
Discussion started by: jgfcoimbra
1 Replies

5. Shell Programming and Scripting

perl hash - using a range as a hash key.

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)
Discussion started by: dsw
3 Replies

6. Shell Programming and Scripting

Sorting keys of a hash in perl

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)
Discussion started by: niteesh_!7
1 Replies

7. Programming

store information in hash and display number of keys.

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)
Discussion started by: veerubiji
0 Replies

8. Shell Programming and Scripting

Compare values of hashes of hash for n number of hash in perl without sorting.

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)
Discussion started by: asak
1 Replies

9. Shell Programming and Scripting

Need regex for line not starting with hash #

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
Net::Whois::Parser(3pm) 				User Contributed Perl Documentation				   Net::Whois::Parser(3pm)

NAME
Net::Whois::Parser - module for parsing whois information SYNOPSIS
use Net::Whois::Parser; my $info = parse_whois( domain => $domain ); my $info = parse_whois( raw => $whois_raw_text, domain => $domain ); my $info = parse_whois( raw => $whois_raw_text, server => $whois_server ); $info = { nameservers => [ { domain => 'ns.example.com', ip => '123.123.123.123' }, { domain => 'ns.example.com' }, ], emails => [ 'admin@example.com' ], domain => 'example.com', somefield1 => 'value', somefield2 => [ 'value', 'value2' ], ... }; # Your own parsers sub my_parser { my ( $text ) = @_; return { nameservers => [ { domain => 'ns.example.com', ip => '123.123.123.123' }, { domain => 'ns.example.com' }, ], emails => [ 'admin@example.com' ], somefield => 'value', somefield2 => [ 'value', 'value2' ], }; } $Net::Whois::Parser::PARSERS{'whois.example.com'} = &my_parser; $Net::Whois::Parser::PARSERS{'DEFAULT'} = &my_default_parser; # If you want to get all values of fields from all whois answers $Net::Whois::Parser::GET_ALL_VALUES = 1; # example # Net::Whois::Raw returns 2 answers $raw = [ { text => 'key: value1' }, { text => 'key: value2'}]; $data = parse_whois(raw => $raw); # If flag is off parser returns # { key => 'value2' }; # If flag is on parser returns # { key => [ 'value1', 'value2' ] }; # If you want to convert some field name to another: $Net::Whois::Parser::FIELD_NAME_CONV{'Domain name'} = 'domain'; # If you want to format some fields. # I think it is very useful for dates. $Net::Whois::Parser::HOOKS{'expiration_date'} = [ &format_date ]; DESCRIPTION
Net::Whois::Parser module provides Whois data parsing. You can add your own parsers for any whois server. FUNCTIONS
parse_whois(%args) Returns hash of whois data. Arguments: 'domain' - domain 'raw' - raw whois text 'server' - whois server 'which_whois' - option for Net::Whois::Raw::whois. Default value is QRY_ALL CHANGES
See file "Changes" in the distribution AUTHOR
Ivan Sokolov, "<ivsokolov@cpan.org>" COPYRIGHT &; LICENSE Copyright 2009 Ivan Sokolov This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself. perl v5.14.2 2012-01-20 Net::Whois::Parser(3pm)
All times are GMT -4. The time now is 05:40 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy