The spec says that the dfdl:choiceLength property specifies the length of the choice in bytes, so specifying a unit is not required. Perhaps a future DFDL version or a Daffodil extension could add a dfdl:choiceLengnthUnits property so you could specify units. But I suspect no one has seen a format in the wild that actually needs the feature, so there wasn't a reason to add it to the spec and future complicate implementations.
- Steve On 8/19/20 12:19 PM, Roger L Costello wrote: > Hi Folks, > > I have a choice element in which I specify dfdl:choiceLengthKind="explicit" > and dfdl:choiceLength="3" but I do not specify dfdl:lengthUnits. I run my > schema and get no error. Why? I believe that I should get an error. What > value is there to telling the parser that each branch of the choice is 3? > 3 what? 3 bytes? 3 bits? 3 characters? > > /Roger >
