Control Characters

Eric Hellman eric at
Wed Feb 3 18:36:12 GMT 1999

Why are the control characters x80-x9F allowed in XML character data, while
x0-x8,xB,xC,xE-x1F are illegal? Is it that the illegals have meanings that
XML does not support? Just wondering.

Has "BEL" been banished to a "Unisound" encoding ?;--}

I have a DTD in which some entities are given the default value xFFFD in
the external subset because they are placeholders for strings to be
supplied in an internal subset with the document. Is this an appropriate
use of Unicode's "replacement character"?


Eric Hellman
Openly Informatics, Inc.           Tools for 21st Century Scholarly Publishing

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