1HTML::Tree(3) User Contributed Perl Documentation HTML::Tree(3)
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6 HTML::Tree - overview of HTML::TreeBuilder et al
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9 3.23
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12 use HTML::TreeBuilder;
13 my $tree = HTML::TreeBuilder->new();
14 $tree->parse_file($filename);
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16 # Then do something with the tree, using HTML::Element
17 # methods -- for example:
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19 $tree->dump
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21 # Finally:
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23 $tree->delete;
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26 HTML-Tree is a suite of Perl modules for making parse trees out of HTML
27 source. It consists of mainly two modules, whose documentation you
28 should refer to: HTML::TreeBuilder and HTML::Element.
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30 HTML::TreeBuilder is the module that builds the parse trees. (It uses
31 HTML::Parser to do the work of breaking the HTML up into tokens.)
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33 The tree that TreeBuilder builds for you is made up of objects of the
34 class HTML::Element.
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36 If you find that you do not properly understand the documentation for
37 HTML::TreeBuilder and HTML::Element, it may be because you are
38 unfamiliar with tree-shaped data structures, or with object-oriented
39 modules in general. Sean Burke has written some articles for The Perl
40 Journal ("www.tpj.com") that seek to provide that background. The full
41 text of those articles is contained in this distribution, as:
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43 HTML::Tree::AboutObjects
44 "User's View of Object-Oriented Modules" from TPJ17.
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46 HTML::Tree::AboutTrees
47 "Trees" from TPJ18
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49 HTML::Tree::Scanning
50 "Scanning HTML" from TPJ19
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52 Readers already familiar with object-oriented modules and tree-shaped
53 data structures should read just the last article. Readers without
54 that background should read the first, then the second, and then the
55 third.
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58 You can find documentation for this module with the perldoc command.
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60 perldoc HTML::Tree
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62 You can also look for information at:
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64 · AnnoCPAN: Annotated CPAN documentation
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66 <http://annocpan.org/dist/HTML-Tree>
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68 · CPAN Ratings
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70 <http://cpanratings.perl.org/d/HTML-Tree>
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72 · RT: CPAN's request tracker
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74 <http://rt.cpan.org/NoAuth/Bugs.html?Dist=HTML-Tree>
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76 · Search CPAN
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78 <http://search.cpan.org/dist/HTML-Tree>
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81 HTML::TreeBuilder, HTML::Element, HTML::Tagset, HTML::Parser,
82 HTML::DOMbo
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84 The book Perl & LWP by Sean M. Burke published by O'Reilly and
85 Associates, 2002. ISBN: 0-596-00178-9
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87 It has several chapters to do with HTML processing in general, and
88 HTML-Tree specifically. There's more info at:
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90 http://www.oreilly.com/catalog/perllwp/
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92 http://www.amazon.com/exec/obidos/ASIN/0596001789
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95 HTML::Tree is maintained in Subversion hosted at perl.org.
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97 http://svn.perl.org/modules/HTML-Tree
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99 The latest development work is always at:
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101 http://svn.perl.org/modules/HTML-Tree/trunk
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103 Any patches sent should be diffed against this repository.
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106 Thanks to Gisle Aas, Sean Burke and Andy Lester for their original
107 work.
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109 Thanks to Chicago Perl Mongers (http://chicago.pm.org) for their
110 patches submitted to HTML::Tree as part of the Phalanx project
111 (http://qa.perl.org/phalanx).
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113 Thanks to the following people for additional patches and
114 documentation: Terrence Brannon, Gordon Lack, Chris Madsen and Ricardo
115 Signes.
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118 Original HTML-Tree author Gisle Aas. Handed off to Sean M. Burke. and
119 Andy Lester. Currently maintained by Pete Krawczyk "<petek@cpan.org>".
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122 Copyright 1995-1998 Gisle Aas; 1999-2004 Sean M. Burke; 2005 Andy
123 Lester; 2006 Pete Krawczyk. (Except the articles contained in
124 HTML::Tree::AboutObjects, HTML::Tree::AboutTrees, and
125 HTML::Tree::Scanning, which are all copyright 2000 The Perl Journal.)
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127 Except for those three TPJ articles, the whole HTML-Tree distribution,
128 of which this file is a part, is free software; you can redistribute it
129 and/or modify it under the same terms as Perl itself.
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131 Those three TPJ articles may be distributed under the same terms as
132 Perl itself.
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134 The programs in this library are distributed in the hope that they will
135 be useful, but without any warranty; without even the implied warranty
136 of merchantability or fitness for a particular purpose.
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140perl v5.10.1 2006-11-12 HTML::Tree(3)