NAME

HTML::Lint - check for HTML errors in a string or file

SYNOPSIS

    my $lint = HTML::Lint->new;
	
    $lint->parse( $data );
    $lint->parse_file( $filename );
	
    my $error_count = $lint->errors;

    foreach my $error ( $lint->errors ) {
	print $error->as_string, "\n";
    }

HTML::Lint also comes with a wrapper program called weblint that handles linting from the command line:

$ weblint http://www.cnn.com/
http://www.cnn.com/ (395:83) <IMG> tag has no HEIGHT and WIDTH attributes.
http://www.cnn.com/ (395:83) <IMG> does not have ALT text defined
http://www.cnn.com/ (396:217) Unknown element <nobr>
http://www.cnn.com/ (396:241) </nobr> with no opening <nobr>
http://www.cnn.com/ (842:7) target attribute in <a> is repeated

And finally, you can also get Apache::Lint that passes any mod_perl-generated code through HTML::Lint and get it dumped into your Apache error_log.

[Mon Jun  3 14:03:31 2002] [warn] /foo.pl (1:45) </p> with no opening <p>
[Mon Jun  3 14:03:31 2002] [warn] /foo.pl (1:49) Unknown element <gronk>
[Mon Jun  3 14:03:31 2002] [warn] /foo.pl (1:56) Unknown attribute "x" for tag <table>

VERSION

Version 1.10

$Header: /cvsroot/html-lint/html-lint/lib/HTML/Lint.pm,v 1.26 2002/07/18 03:56:47 petdance Exp $

EXPORTS

None. It's all object-based.

METHODS

HTML::Lint is based on the HTML::Parser module. Any method call that works with HTML::Parser will work in <HTML::Lint>. However, you'll probably only want to use the parse() or parse_file() methods.

new()

Create an HTML::Lint object, which inherits from HTML::Parser. The new method takes no arguments.

errors()

In list context, errors returns all of the errors found in the parsed text. In scalar context, it returns the number of errors found.

clear_errors()

Clears the list of errors, in case you want to print and clear, print and clear.

newfile( $filename )

Call newfile() whenever you switch to another file in a batch of linting. Otherwise, the object thinks everything is from the same file.

SEE ALSO

HTML::Lint::Error, HTML::Parser

TODO

• Allow a "check this string" method for building into tests.

• Check for attributes that require values

  For instance, BGCOLOR should be BGCOLOR="something", but if it's just BGCOLOR, that's a problem. (Plus, that crashes IE OSX)

• Check form validity: Are any fields duplicated on the form?

• Add link checking

• Handle obsolete tags

• Create a .t file for each potential error message

• Anything like <BR> or <P> inside of <A>

• <TABLE>s that have no rows.

• Form fields that aren't in a FORM

• Check for valid entities, and that they end with semicolons

• DIVs with nothing in them.

• HEIGHT= that have percents in them.

• Check for goofy stuff like:

  <b><li></b><b>Hello Reader - Spanish Level 1 (K-3)</b>

LICENSE

This code may be distributed under the same terms as Perl itself.

Please note that these modules are not products of or supported by the employers of the various contributors to the code.

AUTHOR

Andy Lester, <andy@petdance.com>