Built-in sniffs

DocbookCS ships with four sniffs. Each can be enabled, disabled, or configured via <property> elements in docbookcs.xml.

Ensures xml:id appears before xmlns attributes on the same element.

Flags exception class names wrapped in <classname> that should use <exceptionname>.

Flags <para> elements that contain only inline content and should be <simpara>.

Detects trailing whitespace and mixed tabs and spaces in indentation.