DTD questions

[Robert William Vesterman]

(1) Is there a way to say that an attribute is an ID, but it also must
be of a certain form (i.e. conform to an <!ENTITY> specification)?

(2) Is there a way to say that an attribute's value should be
considered case-insensitive?

Thanks,

Bob Vesterman.

 

[Bjoern Hoehrmann]

* Robert William Vesterman wrote in comp.text.xml:

(1) Is there a way to say that an attribute is an ID, but it also must
be of a certain form (i.e. conform to an <!ENTITY> specification)?
No.

(2) Is there a way to say that an attribute's value should be
considered case-insensitive?

No.

 

[Peter Flynn]

(1) Is there a way to say that an attribute is an ID, but it also must
be of a certain form (i.e. conform to an <!ENTITY> specification)?

No. ID values must be literals.

(2) Is there a way to say that an attribute's value should be
considered case-insensitive?

No, XML specifies that they must be case-sensitive.
If you want them to be case-insensitive, use SGML instead of XML.

///Peter

 

[Arjun Ray]

Robert William Vesterman wrote:

No, XML specifies that they must be case-sensitive.
If you want them to be case-insensitive, use SGML instead of XML.

Yes, but it needs to be remembered here that SGML doesn't really have a
"case insensitivity" option. The option is better termed "case folding",
where name tokens are normalized by the parser to upper-case form.