Main element Use the category element to group rules/rulegroups. The attribute name shows the category use, e.g. 'Grammar', 'Spelling', 'Style' etc. Defines a group of rules to display several rules as one in the configuration user interface. A group has a unique ID. The whole rule group can be switched by default off using the attribute 'default'. The rule element. The unique ID is required only if the rule is not contained in a rule group. The rule can be switched by default off (using the default attribute). A short description of the error detected by this rule displayed on the context menu in OOo. Message shown to the user if a rule matches. Suggestion displayed to the user. Specifies examples used in JUnit tests and as internal documentation. The attribute 'correction' is used to check if the suggested correction is correct; multiple suggestions are joined with "|". The attribute triggers_error is not used.