DOCBOOK: SDATA-Warnings

[Holger Rauch <Holger.Rauch@heitec.de>]

Hi!

When I convert an SGML file to an XML file using "sgml2xml" (part of the
SP package) I get the following warnings:

sgml2xml:evaluation_textverarbeitungssysteme.sgml:803:17:W: reference to
internal SDATA entity "ndash" not allowed in XML
sgml2xml:evaluation_textverarbeitungssysteme.sgml:803:36:W: reference to
internal SDATA entity "ndash" not allowed in XML
sgml2xml:evaluation_textverarbeitungssysteme.sgml:935:23:W: reference to
internal SDATA entity "mdash" not allowed in XML
sgml2xml:evaluation_textverarbeitungssysteme.sgml:1209:1:W: reference to
internal SDATA entity "mdash" not allowed in XML
sgml2xml:evaluation_textverarbeitungssysteme.sgml:1210:25:W: reference to
internal SDATA entity "mdash" not allowed in XML
sgml2xml:evaluation_textverarbeitungssysteme.sgml:1413:48:W: reference to
internal SDATA entity "lt" not allowed in XML
sgml2xml:evaluation_textverarbeitungssysteme.sgml:1413:66:W: reference to
internal SDATA entity "gt" not allowed in XML

What is an "SDATA entity"? What notation do I have to use in XML instead
of "<", ">", "–", "—"?

Thanks for your advice!

P. S.: Hopefully that's the right list for this issue. If not, I
apologize.

Greetings,

	Holger