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Top Forums Shell Programming and Scripting How to strip out common terms in string Post 302221601 by ahjiefreak on Monday 4th of August 2008 10:37:30 PM
Old 08-04-2008
Hi.,

Which 0 in orange line do you mean.

The example of data is :-

0, 0, 0, 0, 1, 2, 0, 4, 5, 6, 7,foo
0, 0, 0, 0, 1, 4, 0, 5, 5, 5, 5,foo1
0, 0, 6, 0, 1, 6, 0, 6, 1, 2, 3,orange
etc...

I wanted to remove the 0 which occur on the same COLUMNS of foo,foo1 and orange in this case.

Desired output is:-

0,1,2,4,5,6,7,foo
0,1,4,5,5,5,5,foo1
6,1,6,6,1,2,3,orange
 

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YAML::Node(3)						User Contributed Perl Documentation					     YAML::Node(3)

NAME
YAML::Node - A generic data node that encapsulates YAML information SYNOPSIS
use YAML; use YAML::Node; my $ynode = YAML::Node->new({}, 'ingerson.com/fruit'); %$ynode = qw(orange orange apple red grape green); print Dump $ynode; yields: --- !ingerson.com/fruit orange: orange apple: red grape: green DESCRIPTION
A generic node in YAML is similar to a plain hash, array, or scalar node in Perl except that it must also keep track of its type. The type is a URI called the YAML type tag. YAML::Node is a class for generating and manipulating these containers. A YAML node (or ynode) is a tied hash, array or scalar. In most ways it behaves just like the plain thing. But you can assign and retrieve and YAML type tag URI to it. For the hash flavor, you can also assign the order that the keys will be retrieved in. By default a ynode will offer its keys in the same order that they were assigned. YAML::Node has a class method call new() that will return a ynode. You pass it a regular node and an optional type tag. After that you can use it like a normal Perl node, but when you YAML::Dump it, the magical properties will be honored. This is how you can control the sort order of hash keys during a YAML serialization. By default, YAML sorts keys alphabetically. But notice in the above example that the keys were Dumped in the same order they were assigned. YAML::Node exports a function called ynode(). This function returns the tied object so that you can call special methods on it like ->keys(). keys() works like this: use YAML; use YAML::Node; %$node = qw(orange orange apple red grape green); $ynode = YAML::Node->new($node); ynode($ynode)->keys(['grape', 'apple']); print Dump $ynode; produces: --- grape: green apple: red It tells the ynode which keys and what order to use. ynodes will play a very important role in how programs use YAML. They are the foundation of how a Perl class can marshall the Loading and Dumping of its objects. The upcoming versions of YAML.pm will have much more information on this. AUTHOR
Ingy dA~Xt Net <ingy@cpan.org> COPYRIGHT
Copyright (c) 2006. Ingy dA~Xt Net. All rights reserved. Copyright (c) 2002. Brian Ingerson. All rights reserved. This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself. See <http://www.perl.com/perl/misc/Artistic.html> perl v5.12.1 2010-01-03 YAML::Node(3)
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