Beefy Boxes and Bandwidth Generously Provided by pair Networks
We don't bite newbies here... much

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.


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

Log In?

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

How do I use this? | Other CB clients
Other Users?
Others chanting in the Monastery: (4)
As of 2015-11-28 09:48 GMT
Find Nodes?
    Voting Booth?

    What would be the most significant thing to happen if a rope (or wire) tied the Earth and the Moon together?

    Results (741 votes), past polls