Schematron schema for XHTML 1.0
Author: Masayasu Ishikawa
CAUTION: This is purely experimental.
XHTML 1.0 documents MUST use
the id attribute when defining fragment identifiers. The name
attribute MAY also be used for backward compatibility.
The a element MUST NOT contain other a elements.
The pre element MUST NOT contain the element.
The label element MUST NOT contain other label elements.
The form element MUST NOT contain other form elements.
The button element MUST NOT contain the element.
The href and nohref attributes
on the area element MUST NOT be used at the same time.
The img element MUST be inside
an a element to define a server-side image map.
The value of
the lang and xml:lang attributes MUST be identical.
XHTML 1.0 documents SHOULD use
the xml:lang attribute when specifying the language. The lang
attribute MAY also be used for backward compatibility.
The value of
the id and name attributes MUST be identical.