in reply to Re^3: Remove node information by searching tag element
in thread remove node information by searching tag element.

Sorry still you didn't understand my problem I think, In the above input data as I provided, in that data number tag is same in first data node and third data node, but reaming information is different only number tag is same. I need to delete the entire node if number tag element is same in any node. I am printing $info into new file so before printing into new file I need to eliminate duplicate nodes by using number tag. I hope now you understand clearly, I posted my expected result also. can you suggest me.

  • Comment on Re^4: Remove node information by searching tag element

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Re^5: Remove node information by searching tag element
by MidLifeXis (Monsignor) on Nov 23, 2011 at 14:45 UTC

    Given your output data, the approach I provided will do the job. $key should be the 'number tag element'. Don't add the results if you have already seen the number.

    This block of code illustrates the technique.

    my @data = qw( a b 3 d a f b );
my %seen;
for ( @data ) {
    print $_, "\n" unless $seen{$_}++;
}

__DATA__
a
b
3
d
f

    [download]

    You should be able to apply this technique to your problem space.

    --MidLifeXis

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[d/l]
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      hi I reeded total xml::libxml::reader; but how to extract specific element form resulting $info and how to compare this is repeated or not. please help me i am not able to implement.

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