HTML::Tree(3pm)

1HTML::Tree(3)         User Contributed Perl Documentation        HTML::Tree(3)
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NAME

6       HTML::Tree - build and scan parse-trees of HTML
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VERSION

9       This document describes version 5.07 of HTML::Tree, released August 31,
10       2017 as part of HTML-Tree.
11

SYNOPSIS

13           use HTML::TreeBuilder;
14           my $tree = HTML::TreeBuilder->new();
15           $tree->parse_file($filename);
16
17               # Then do something with the tree, using HTML::Element
18               # methods -- for example:
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20           $tree->dump
21
22               # Finally:
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24           $tree->delete;
25

DESCRIPTION

27       HTML-Tree is a suite of Perl modules for making parse trees out of HTML
28       source.  It consists of mainly two modules, whose documentation you
29       should refer to: HTML::TreeBuilder and HTML::Element.
30
31       HTML::TreeBuilder is the module that builds the parse trees.  (It uses
32       HTML::Parser to do the work of breaking the HTML up into tokens.)
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34       The tree that TreeBuilder builds for you is made up of objects of the
35       class HTML::Element.
36
37       If you find that you do not properly understand the documentation for
38       HTML::TreeBuilder and HTML::Element, it may be because you are
39       unfamiliar with tree-shaped data structures, or with object-oriented
40       modules in general. Sean Burke has written some articles for The Perl
41       Journal ("www.tpj.com") that seek to provide that background.  The full
42       text of those articles is contained in this distribution, as:
43
44       HTML::Tree::AboutObjects
45           "User's View of Object-Oriented Modules" from TPJ17.
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47       HTML::Tree::AboutTrees
48           "Trees" from TPJ18
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50       HTML::Tree::Scanning
51           "Scanning HTML" from TPJ19
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53       Readers already familiar with object-oriented modules and tree-shaped
54       data structures should read just the last article.  Readers without
55       that background should read the first, then the second, and then the
56       third.
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METHODS

59       All these methods simply redirect to the corresponding method in
60       HTML::TreeBuilder.  It's more efficient to use HTML::TreeBuilder
61       directly, and skip loading HTML::Tree at all.
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63   new
64       Redirects to "new" in HTML::TreeBuilder.
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66   new_from_file
67       Redirects to "new_from_file" in HTML::TreeBuilder.
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69   new_from_content
70       Redirects to "new_from_content" in HTML::TreeBuilder.
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72   new_from_url
73       Redirects to "new_from_url" in HTML::TreeBuilder.
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SUPPORT

76       You can find documentation for this module with the perldoc command.
77
78           perldoc HTML::Tree
79
80           You can also look for information at:
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82       ·   AnnoCPAN: Annotated CPAN documentation
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84           <http://annocpan.org/dist/HTML-Tree>
85
86       ·   CPAN Ratings
87
88           <http://cpanratings.perl.org/d/HTML-Tree>
89
90       ·   RT: CPAN's request tracker
91
92           <http://rt.cpan.org/NoAuth/Bugs.html?Dist=HTML-Tree>
93
94       ·   Search CPAN
95
96           <http://search.cpan.org/dist/HTML-Tree>
97
98       ·   Stack Overflow
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100           <http://stackoverflow.com/questions/tagged/html-tree>
101
102           If you have a question about how to use HTML-Tree, Stack Overflow
103           is the place to ask it.  Make sure you tag it both "perl" and
104           "html-tree".
105

SOURCE REPOSITORY

121       HTML-Tree is now maintained using Git.  The main public repository is
122       <https://github.com/kentfredric/HTML-Tree>.
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124       The best way to send a patch is to make a pull request there.
125

ACKNOWLEDGEMENTS

127       Thanks to Gisle Aas, Sean Burke and Andy Lester for their original
128       work.
129
130       Thanks to Chicago Perl Mongers (http://chicago.pm.org) for their
131       patches submitted to HTML::Tree as part of the Phalanx project
132       (http://qa.perl.org/phalanx).
133
134       Thanks to the following people for additional patches and
135       documentation: Terrence Brannon, Gordon Lack, Chris Madsen and Ricardo
136       Signes.
137

AUTHOR

139       Current maintainers:
140
141       ·   Christopher J. Madsen "<perl AT cjmweb.net>"
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143       ·   Jeff Fearn "<jfearn AT cpan.org>"
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145       Original HTML-Tree author:
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147       ·   Gisle Aas
148
149       Former maintainers:
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151       ·   Sean M. Burke
152
153       ·   Andy Lester
154
155       ·   Pete Krawczyk "<petek AT cpan.org>"
156
157       You can follow or contribute to HTML-Tree's development at
158       <https://github.com/kentfredric/HTML-Tree>.
159

COPYRIGHT AND LICENSE

161       Copyright 1995-1998 Gisle Aas, 1999-2004 Sean M. Burke, 2005 Andy
162       Lester, 2006 Pete Krawczyk, 2010 Jeff Fearn, 2012 Christopher J.
163       Madsen.  (Except the articles contained in HTML::Tree::AboutObjects,
164       HTML::Tree::AboutTrees, and HTML::Tree::Scanning, which are all
165       copyright 2000 The Perl Journal.)
166
167       Except for those three TPJ articles, the whole HTML-Tree distribution,
168       of which this file is a part, is free software; you can redistribute it
169       and/or modify it under the same terms as Perl itself.
170
171       Those three TPJ articles may be distributed under the same terms as
172       Perl itself.
173
174       The programs in this library are distributed in the hope that they will
175       be useful, but without any warranty; without even the implied warranty
176       of merchantability or fitness for a particular purpose.
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180perl v5.28.1                      2019-02-02                     HTML::Tree(3)