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



NAME
       HTML::AsSubs - functions that construct a HTML syntax tree

VERSION
       This document describes version 5.03 of HTML::AsSubs, released September 22, 2012 as part of HTML-Tree. HTMLTree.
       Tree.

SYNOPSIS
        use HTML::AsSubs;
        $h = body(
                  h1("This is the heading"),
                  p("This is the first paragraph which contains a ",
                    a({href=>'link.html'}, "link"),
                    " and an ",
                    img({src=>'img.gif', alt=>'image'}),
                    "."
                   ),
                 );
        print $h->as_HTML;

DESCRIPTION
       This module exports functions that can be used to construct various HTML elements. The functions are
       named after the tags of the corresponding HTML element and are all written in lower case. If the
       first argument is a hash reference then it will be used to initialize the attributes of this element.
       The remaining arguments are regarded as content.

       For a similar idea (i.e., it's another case where the syntax tree of the Perl source mirrors the
       syntax tree of the HTML produced), see HTML::Element's "new_from_lol" method.

       For what I now think is a cleaner implementation of this same idea, see the excellent module
       "XML::Generator", which is what I suggest for actual real-life use.  (I suggest this over
       "HTML::AsSubs" and over "CGI.pm"'s HTML-making functions.)

ACKNOWLEDGEMENT
       This module was inspired by the following message:

        Date: Tue, 4 Oct 1994 16:11:30 +0100
        Subject: Wow! I have a large lightbulb above my head!

        Take a moment to consider these lines:

        %OVERLOAD=( '""' => sub { join("", @{$_[0]}) } );

        sub html { my($type)=shift; bless ["<$type>", @_, "</$type>"]; }

        :-)  I *love* Perl 5!  Thankyou Larry and Ilya.

        Regards,
        Tim Bunce.

        p.s. If you didn't get it, think about recursive data types: html(html())
        p.p.s. I'll turn this into a much more practical example in a day or two.
        p.p.p.s. It's a pity that overloads are not inherited. Is this a bug?

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

SEE ALSO
       HTML::Element, XML::Generator

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

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

AUTHOR
       Current maintainers:

       •   Christopher J. Madsen "<perl AT cjmweb.net>"

       •   Jeff Fearn "<jfearn AT cpan.org>"

       Original HTML-Tree author:

       •   Gisle Aas

       Former maintainers:

       •   Sean M. Burke

       •   Andy Lester

       •   Pete Krawczyk "<petek AT cpan.org>"

       You can follow or contribute to HTML-Tree's development at http://github.com/madsen/HTML-Tree
       <http://github.com/madsen/HTML-Tree>.

COPYRIGHT AND LICENSE
       Copyright 1995-1998 Gisle Aas, 1999-2004 Sean M. Burke, 2005 Andy Lester, 2006 Pete Krawczyk, 2010
       Jeff Fearn, 2012 Christopher J. Madsen.

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

       The programs in this library are distributed in the hope that they will be useful, but without any
       warranty; without even the implied warranty of merchantability or fitness for a particular purpose.



perl v5.16.2                                     2013-08-25                                  HTML::AsSubs(3)