This is a request related to Data Forms.
The 'match' and 'match-error' parameters work for a text field, but they are not available for a wiki field.
It would be extremely powerful to allow regular expression matching on a wiki field - we can restrict length, restrict the tags that can be used, etc.
Please add the 'match' and 'match-error' parameters to the wiki field type.
For more information, see the related community forum post here.