Jeff Hooker wrote: > > Docbook's profiling attributes allow users, in theory, to enter more > than one attribute value in each attribute. If the "audience" attribute > has three possible values (e.g. internal, external, reviewer), you could > define an element as belonging to both the internal and reviewer > audience (i.e. NOT external) by writing it as audience="internal; reviewer". > > The problem arises when actually trying to allow users to enter the > multiple values. Since the values are defined within the schema, they > appear as a drop-down list in XXE, forcing users to pick only one at a > time. This is completely reasonable, since while the publishing scripts > understand the meaning of values separated by a semicolon, there is no > way of explaining to a schema, so XXE interprets the schema and manages > the presentation. Ideally, however, they would appear as a pick list so > that users could select more than one of the values. > > I understand that this cuts directly against XXE's grain; basically > setting it up so that users can create an invalid document. That said, > is there any way of doing this? >
No, there is no way to make XXE allow users to specify something which does not conform to the schema. You seem to have already modified the schema to specify: audience=internal|external|reviewer So why not modify it to specify all the possible combinations? audience=internal|external|reviewer|internal;external|...|internal;external;reviewer With 3 atomic values, this is not a big deal. With more than 3 ou 4 atomic values, do not use an enumeration. Instead use a more free form attribute (CDATA). With DocBook 5, you can constrain the attribute value with a regexp.
