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.\" ========================================================================
.\"
.IX Title "HTML::Lint::HTML4 3pm"
.TH HTML::Lint::HTML4 3pm "2020-12-28" "perl v5.32.0" "User Contributed Perl Documentation"
.\" For nroff, turn off justification.  Always turn off hyphenation; it makes
.\" way too many mistakes in technical documents.
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.SH "NAME"
HTML::Lint::HTML4 \-\- Rules for HTML 4 as used by HTML::Lint.
.SH "SYNOPSIS"
.IX Header "SYNOPSIS"
Collection of tags and attributes for use by HTML::Lint.  You can add
your own tags and attributes if you like.
.PP
.Vb 2
\&    # Add an attribute that your company uses.
\&    HTML::Lint::HTML4::add_attribute( \*(Aqbody\*(Aq, \*(Aqproprietary\-attribute\*(Aq );
\&
\&    # Add the HTML 5 <canvas> tag.
\&    HTML::Lint::HTML4::add_tag( \*(Aqcanvas\*(Aq );
\&    HTML::Lint::HTML4::add_attribute( \*(Aqcanvas\*(Aq, $_ ) for qw( height width );
.Ve
.PP
This must be done before HTML::Lint does any validation.  Note also that
this modifies a global table, and is not on a per-object basis.
.SH "FUNCTIONS"
.IX Header "FUNCTIONS"
The functions below are very specifically not exported, and need to be
called with a complete package reference, so as to remind the programmer
that she is monkeying with the entire package.
.ie n .SS "add_tag( $tag );"
.el .SS "add_tag( \f(CW$tag\fP );"
.IX Subsection "add_tag( $tag );"
Adds a tag to the list of tags that HTML::Lint knows about.  If you
specify a tag that HTML::Lint already knows about, then nothing is
changed.
.PP
.Vb 1
\&    HTML::Lint::HTML4::add_tag( \*(Aqcanvas\*(Aq );
.Ve
.ie n .SS "add_attribute( $tag, $attribute );"
.el .SS "add_attribute( \f(CW$tag\fP, \f(CW$attribute\fP );"
.IX Subsection "add_attribute( $tag, $attribute );"
Adds an attribute to a tag that HTML::Lint knows about.  The tag must
already be known to HTML::Lint or else this function will die.
.PP
.Vb 1
\&    HTML::Lint::HTML4::add_attribute( \*(Aqcanvas\*(Aq, $_ ) for qw( height width );
.Ve
.SH "AUTHOR"
.IX Header "AUTHOR"
Andy Lester \f(CW\*(C`andy at petdance.com\*(C'\fR
.SH "COPYRIGHT"
.IX Header "COPYRIGHT"
Copyright 2005\-2018 Andy Lester.
.PP
This program is free software; you can redistribute it and/or modify it
under the terms of the Artistic License v2.0.
.PP
http://www.opensource.org/licenses/Artistic\-2.0
.PP
Please note that these modules are not products of or supported by the
employers of the various contributors to the code.