Entity replacement

James K. Tauber jtauber at jtauber.com
Sun Jun 1 07:12:19 BST 1997

Am I correct in thinking that one benefit of requiring entity and element 
structure to be synchronized is that a well-formed document is also 
well-formed before general entity replacement; ie you can parse the 
document before entity replacement, parse the entities and then just insert 
the parse tree of the later into the former?

If this is true, then is there some similar constraint that could be 
applied to use of parameter entities? This might already have been done in 
the choice of where to use % in the productions but I can't quite work out 
the pattern. It would be nice if parameter entity replacement could be 
described without recourse to the % notation in the spec's productions. 
Would it be helpful, for example, to increase the number of non-terminal 
symbols in the grammar and then specify which non-terminal symbols can be 
replaced by parameter entity reference?

PS Can people check out http://www.jtauber.com/xml/ and let me know 
(off-list) what they think and what could be added?


James K. Tauber / jtauber at jtauber.com
Perth, Western Australia

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