1HTML::AsSubs(3)       User Contributed Perl Documentation      HTML::AsSubs(3)
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3
4

NAME

6       HTML::AsSubs - functions that construct a HTML syntax tree
7

VERSION

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

SYNOPSIS

13        use HTML::AsSubs;
14        $h = body(
15                  h1("This is the heading"),
16                  p("This is the first paragraph which contains a ",
17                    a({href=>'link.html'}, "link"),
18                    " and an ",
19                    img({src=>'img.gif', alt=>'image'}),
20                    "."
21                   ),
22                 );
23        print $h->as_HTML;
24

DESCRIPTION

26       This module exports functions that can be used to construct various
27       HTML elements. The functions are named after the tags of the
28       corresponding HTML element and are all written in lower case. If the
29       first argument is a hash reference then it will be used to initialize
30       the attributes of this element. The remaining arguments are regarded as
31       content.
32
33       For a similar idea (i.e., it's another case where the syntax tree of
34       the Perl source mirrors the syntax tree of the HTML produced), see
35       HTML::Element's "new_from_lol" method.
36
37       For what I now think is a cleaner implementation of this same idea, see
38       the excellent module "XML::Generator", which is what I suggest for
39       actual real-life use.  (I suggest this over "HTML::AsSubs" and over
40       "CGI.pm"'s HTML-making functions.)
41

ACKNOWLEDGEMENT

43       This module was inspired by the following message:
44
45        Date: Tue, 4 Oct 1994 16:11:30 +0100
46        Subject: Wow! I have a large lightbulb above my head!
47
48        Take a moment to consider these lines:
49
50        %OVERLOAD=( '""' => sub { join("", @{$_[0]}) } );
51
52        sub html { my($type)=shift; bless ["<$type>", @_, "</$type>"]; }
53
54        :-)  I *love* Perl 5!  Thankyou Larry and Ilya.
55
56        Regards,
57        Tim Bunce.
58
59        p.s. If you didn't get it, think about recursive data types: html(html())
60        p.p.s. I'll turn this into a much more practical example in a day or two.
61        p.p.p.s. It's a pity that overloads are not inherited. Is this a bug?
62

BUGS

64       The exported link() function overrides the builtin link() function.
65       The exported tr() function must be called using &tr(...) syntax because
66       it clashes with the builtin tr/../../ operator.
67

SEE ALSO

69       HTML::Element, XML::Generator
70
71   html head title base link meta isindex nextid script style body h1 h2 h3 h4
72       h5 h6 p pre div blockquote a img br hr ol ul dir menu li dl dt dd dfn
73       cite code em kbd samp strong var address span b i u tt center font big
74       small strike sub sup table tr td th caption form input select option
75       textarea object applet param map area frame frameset noframe
76       A bunch of methods for creating tags.
77

Private Functions

79   _elem()
80       The _elem() function is wrapped by all the html 'tag' functions. It
81       takes a tag-name, optional hashref of attributes and a list of content
82       as parameters.
83

AUTHOR

85       Current maintainers:
86
87       ·   Christopher J. Madsen "<perl AT cjmweb.net>"
88
89       ·   Jeff Fearn "<jfearn AT cpan.org>"
90
91       Original HTML-Tree author:
92
93       ·   Gisle Aas
94
95       Former maintainers:
96
97       ·   Sean M. Burke
98
99       ·   Andy Lester
100
101       ·   Pete Krawczyk "<petek AT cpan.org>"
102
103       You can follow or contribute to HTML-Tree's development at
104       <https://github.com/kentfredric/HTML-Tree>.
105

107       Copyright 1995-1998 Gisle Aas, 1999-2004 Sean M. Burke, 2005 Andy
108       Lester, 2006 Pete Krawczyk, 2010 Jeff Fearn, 2012 Christopher J.
109       Madsen.
110
111       This library is free software; you can redistribute it and/or modify it
112       under the same terms as Perl itself.
113
114       The programs in this library are distributed in the hope that they will
115       be useful, but without any warranty; without even the implied warranty
116       of merchantability or fitness for a particular purpose.
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120perl v5.30.0                      2019-07-26                   HTML::AsSubs(3)
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