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Full Discussion: Combine columns from multiple files
Top Forums Shell Programming and Scripting Combine columns from multiple files Post 302634305 by sdf on Thursday 3rd of May 2012 07:24:59 AM
Old 05-03-2012
Combine columns from multiple files
Can anybody help on the script to combine/concatenate columns from multiple files

input1
HTML Code:
4 135
5 185
6 85
11 30
16 72
17 30
21 52
22 76
input2
HTML Code:
2 50
4 50
6 33
8 62
10 25
12 46
14 42
15 46
output
HTML Code:
nr input1 input2
2          50
4  135     50
5  185
6  85      33
8          62
10         25
11  30
12         46
14         42
15         46
16  72
17  30
21  52
22  76
 

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LEARN ABOUT DEBIAN

html::treebuilder::libxml

HTML::TreeBuilder::LibXML(3pm)				User Contributed Perl Documentation			    HTML::TreeBuilder::LibXML(3pm)

NAME

       HTML::TreeBuilder::LibXML - HTML::TreeBuilder and XPath compatible interface with libxml

SYNOPSIS

	   use HTML::TreeBuilder::LibXML;

	   my $tree = HTML::TreeBuilder::LibXML->new;
	   $tree->parse($html);
	   $tree->eof;

	   # $tree and $node compatible to HTML::Element
	   my @nodes = $tree->findvalue($xpath);
	   for my $node (@nodes) {
	       print $node->tag;
	       my %attr = $node->all_external_attr;
	   }

	   HTML::TreeBuilder::LibXML->replace_original(); # replace HTML::TreeBuilder::XPath->new

DESCRIPTION

       HTML::TreeBuilder::XPath is libxml based compatible interface to HTML::TreeBuilder, which could be slow for a large document.

       HTML::TreeBuilder::LibXML is drop-in-replacement for HTML::TreeBuilder::XPath.

       This module doesn't implement all of HTML::TreeBuilder and HTML::Element APIs, but enough methods are defined so modules like Web::Scraper
       work.

BENCHMARK

       This is a benchmark result by tools/benchmark.pl

	       Web::Scraper: 0.26
	       HTML::TreeBuilder::XPath: 0.09
	       HTML::TreeBuilder::LibXML: 0.01_01

			    Rate  no_libxml use_libxml
	       no_libxml  5.45/s	 --	  -94%
	       use_libxml 94.3/s      1632%	    --

AUTHOR

       Tokuhiro Matsuno <tokuhirom  slkjfd gmail.com>

       Tatsuhiko Miyagawa <miyagawa@cpan.org>

       Masahiro Chiba

THANKS TO

       woremacx++ http://d.hatena.ne.jp/woremacx/20080202/1201927162

       id:dailyflower

SEE ALSO

       HTML::TreeBuilder, HTML::TreeBuilder::XPath

LICENSE

       This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself.

perl v5.14.2							    2012-04-02					    HTML::TreeBuilder::LibXML(3pm)
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