What are invalid characters in XML

Question

I am working with some XML that holds strings like:

This is a string

Some of the strings that I am passing to the

Answer 1

For XSL (on really lazy days) I use:

capture="&(?!amp;)" capturereplace="&"

to translate all &-signs that aren't follwed på amp; to proper ones.

We have cases where the input is in CDATA but the system which uses the XML doesn't take it into account. It's a sloppy fix, beware...