Beefy Boxes and Bandwidth Generously Provided by pair Networks
"be consistent"
 
PerlMonks  

Re: Need help understanding some code ...

by Krambambuli (Deacon)
on May 16, 2010 at 09:42 UTC ( #840214=note: print w/ replies, xml ) Need Help??


in reply to Need help understanding some code ...

Looking at something like

#!/usr/bin/perl use strict; use warnings; my $temp = 'key1=two_tabs%09%09+other_two_tabs%09%09&key2=three_nulls_ +%00%00%00'; my @pairs = split(/&/, $temp); foreach my $item(@pairs) { my ($key, $value) = split(/=/, $item, 2); $value =~ tr/+/ /; $value =~ s/%(..)/pack("c", hex($1))/ge; $value =~ s/\t/ /g; $value =~ s/\0//g; print "Key: '$key', value: '$value'\n"; }
you'll get

Key: 'key1', value: 'two_tabs   other_two_tabs  '
Key: 'key2', value: 'two_nulls_'

where the _encoded_ TABs and NULLs are transformed to spaces and respectively eliminated.

But as others mentioned already, you shouldn't do this as above if trying to clean up the inputted data but use a module that handles things like this in much more detail.


Krambambuli
---


Comment on Re: Need help understanding some code ...
Download Code

Log In?
Username:
Password:

What's my password?
Create A New User
Node Status?
node history
Node Type: note [id://840214]
help
Chatterbox?
and the web crawler heard nothing...

How do I use this? | Other CB clients
Other Users?
Others making s'mores by the fire in the courtyard of the Monastery: (4)
As of 2014-09-21 15:00 GMT
Sections?
Information?
Find Nodes?
Leftovers?
    Voting Booth?

    How do you remember the number of days in each month?











    Results (172 votes), past polls