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  • From: John Cowan <cowan@m...>
  • To: Jim DeLaHunt <from.xml-dev@j...>
  • Date: Sun, 15 Jul 2012 17:46:00 -0400

Jim DeLaHunt scripsit:

> I'm not sure how important this is to your usage, but The Unicode
> Standard already defines the meaning of a Byte Order Mark (BOM) code
> point in the midst of data. Up until Unicode 3.2, the BOM code point
> U+FEFF had the Byte Order Mark semantics at the start of a text
> stream, and the Zero-Width Non-Breaking Space (ZWNBS) semantics
> within a text stream. As such, your "<data>" element could validly
> include a U+FEFF codoe point.

That's true, but a U+FEFF cannot appear outside the root element, where
only PIs, comments, and whitespace are valid, never character content.
However, using a control character is easier on the recipient, who can
split the documents before parsing them.

-- 
Being understandable rather than obscurantist poses certain
risks, in that one's opinions are clear and therefore     | John Cowan
falsifiable in the light of new data, but it has the      | cowan@c...
advantage of encouraging feedback from others.  --James A. Matisoff


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