character property

Can anyone enlighten me as to the purpose of the character property in the
XSL working draft?  The value of the property is a single character, but
what is that character used for?


+-----------------------+------------------------+-------------------+
| Elliotte Rusty Harold | elharo@xxxxxxxxxxxxxxx | Writer/Programmer |
+-----------------------+------------------------+-------------------+
|        XML: Extensible Markup Language (IDG Books 1998)            |
|   http://www.amazon.com/exec/obidos/ISBN=0764531999/cafeaulaitA/   |
+----------------------------------+---------------------------------+
|  Read Cafe au Lait for Java News:  http://sunsite.unc.edu/javafaq/ |
|  Read Cafe con Leche for XML News: http://sunsite.unc.edu/xml/     |
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