RE: Regular expressions should support \x{....} escapes

> >> http://www.w3.org/TR/charmod/#C073 has "Publicly 
> interchanged content
> >> SHOULD NOT use codepoints in the private use area." 
> 
> Personally, I am tending to increasingly strict reading of 
> SHOULDs and 
> SHOULD NOTs. I feel that generic software should implement 
> these as MUST 
> and MUST NOT, 

Well, this rule is phrased as a requirement on the content (and hence the
content author), not on the software. And I don't think the software has any
business knowing or asking who the content is being exchanged between and
making judgements as to whether it's a public interchange or not: it should
mind its own business. In fact, I'm fed up with software that tries to muck
about with my content, and I don't intend writing any that mucks about with
other people's.

Michael Kay
http://www.saxonica.com/