Whatpm::ContentChecker use Whatpm::ContentChecker;
Whatpm::ContentChecker->check_document ($doc, sub {
my %arg = @_;
warn get_node_path ($arg{node}), ": ",
($arg{level} || "Error"), ": ",
$arg{type}, "\n";
});
Whatpm::ContentChecker->check_element ($doc, sub {
my %arg = @_;
warn get_node_path ($arg{node}), ": ",
($arg{level} || "Error"), ": ",
$arg{type}, "\n";
});The Perl module Whatpm::ContentChecker contains methods for validation of entire or part of DOM tree with regard to relevant Web standards such as HTML.
This module contains two class methods:
Whatpm::ContentChecker->check_document ($document, $onerror)Checks a document, $document, and its descendant for their conformance. If there is an error or a warnign, then the $onerror CODE is invoked with named arguments same as ones for the method check_element.
Whatpm::ContentChecker->check_element ($element, $onerror)Checks an element, $element, and its descendant for their conformance. If there is an error or a warning, then the $onerror CODE is invoked with named arguments:
undef)A string which describes the severity of the error or warning. For the list of the severities, see <https://suika.suikawiki.org/gate/2005/sw/Whatpm%20Error%20Types>.
The node with which the error is detected.
A string which describes the type of the error or warning. For the list of the errors and warnings, see <https://suika.suikawiki.org/gate/2005/sw/Whatpm%20Error%20Types>.
An optional string argumenting the type of the error, e.g. an element name.
An optional string in which the error occurs. For example, a URL extracted from a complex attribute value, in whcih a conformance error is detected.
Whatpm::ContentChecker - XML 1.0, XML 1.1, XML Namespaces 1.0, XML Namespaces 1.1, xml:base, xml:id.
Whatpm::ContentChecker::HTML - Web Applications 1.0 (including HTML Living Standard and HTML5), manakai's Conformance Checking Guideline for Obsolete HTML Elements and Attributes.
Whatpm::ContentChecker::Atom - Atom 1.0, Atom Threading Extension.
For more information, see <https://suika.suikawiki.org/gate/2007/html/standards>.
This conformance checker is work in progress; it might not be able to detect all the errors in the DOM tree, and it might detect an error for a node that is conforming in fact.
This section is not complete.
This section describes various internal constructions used in Whatpm::ContentChecker and relevant modules. These data structures are not public interfaces -- they should not be accessed or modified by applications. They are documented here for the convenience of development only.
$self->{flag} Structure$self->{flag}->{has_label}This flag is set to a true value if and only if there is a label element ancestor of the current node.
$self->{flag}->{has_labelable}This flag is set to 1 if and only if a nearest ancestor label element has the for attribute and there is no labelable form-associated element that is a descendant of the label element and precedes the current node in tree order. This flag is set to 2 if and only if there is a labelable form-associated element that is a descendant of the nearest ancestor label element of the current node and precedes the current node in tree order. This flag is otherwise set to a false value. However, when there is no ancestor label element of the current node, i.e. when $self->{flag}->{has_label} is false, the value of the $self->{flag}->{has_labelable} flag is undefined.
$element_state Structure$element_state->{has_label_original}Used to preserve the value of $self->{flag}->{has_label} at the time of invocation of the method element_start for the element being checked.
$element_state->{has_labelable_original}Used to preserve the value of $self->{flag}->{has_labelable} at the time of invocation of the method element_start for the element being checked.
<https://suika.suikawiki.org/gate/2005/sw/Whatpm%20Error%20Types>
Wakaba <wakaba@suikawiki.org>
Copyright 2007-2011 Wakaba <wakaba@suikawiki.org>.
This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself.