Article:		The Long, Long Arm of SGML
Subject:		Mismatch between parsing and generation
Date:		2003-12-15 09:43:33
From:		John Cowan
A roadblock to the use of DTD internal subsets for entities in the present design is that XML parsers are only guaranteed to process the internal subset and are free to ignore any external subset, whereas XSLT can only generate a reference to an external subset on output and has no facilities for regenerating any internal subset. So a pipeline of XML transformations quickly loses the entity information and has no provision for re-creating it.

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