WPXV is a XHTML validator for WordPress. WPXV validates post content against XHTML 1.0 Transitional and outputs valid/invalid messages and results from xmllint when editing a post. Users can validate a single post when editing the post or do batch validation in the Manage page.
Currently, there are three validation modes available: 1. template: Validate what end users see, i.e., the post page with full template and comments and thus this is the slowest mode. 2. filters: Validate filtered post content. This mode is used if there are other markup plugins enabled. For example, Wordpress Gallery2 adds a non-XHTML tag that has to be translated by its filter. 3. raw: Validate the content in editing area without any modification.
