John L. Clark wrote: > I am trying to sort out some weird behavior with respect to including > system configurations and augmenting detection capabilities. In > particular, I have included a system configuration and added another > detection section to the parent configuration. My first problem is that > with the additional detection section, the included detection no longer > seems to work. Is there any way to add new detection functionality to > a previous set?
No, there is no way to augment an existing detection rule. You need to totally redefine it. > My second problem is that a given detection rule doesn't seem to match, > and I'm not entirely sure why. The detection rule is of the form: > > <cfg:detect> > <cfg:dtdSystemId>http://some.where/some.dtd</cfg:dtdSystemId> > </cfg:detect> > > But this is not matching an external entity reference of the form: > > <!DOCTYPE root PUBLIC "-//Group//Some PubidLiteral//EN" > "http://some.where/some.dtd";> > > It is not entirely clear from the documentation (perhaps the bug lies > there), but it might be that <cfg:dtdSystemId> only matches the > SystemLiteral[0] of a SYSTEM external entity reference and that > <cfg:dtdPublicId> only matches the PubidLiteral of a PUBLIC external > entity reference. If this is the case, then I seek the ability to match > on the SystemLiteral of the PUBLIC external entity reference. This may > be a non-issue, as it may be true that I can always match on the > PubidLiteral instead, but I am concerned about allocating PubidLiterals > (but not SystemLiterals) to information sets which I am developing. > --- <cfg:dtdSystemId>http://some.where/some.dtd</cfg:dtdSystemId> --- matches both --- <!DOCTYPE root PUBLIC "-//Group//Some PubidLiteral//EN" "http://some.where/some.dtd";> --- and --- <!DOCTYPE root SYSTEM "http://some.where/some.dtd";> --- Your problem may be elsewhere because, in an attempt to reproduce your problem, I have changed the detection rule in sdocbook.xxe from: --- <detect> <dtdPublicId substring="true">DTD Simplified DocBook XML</dtdPublicId> </detect> --- to: --- <detect> <dtdSystemId>http://www.oasis-open.org/docbook/xml/simple/4.1.2.5/sdocbook.dtd</dtdSystemId> </detect> --- and I was able to correctly open my Simplified DocBook documents. That is, I was not able to reproduce the problem you described.
