Peter Flynn wrote:
> There are
> two related types of error that do occur in XML, however:
>
> a) conceptual errors in the construction of DTDs or Schemas
> b) well-formedness or validity errors in the document
>
> Type (a) is usually down to a misunderstanding of the nature of markup.
> Some people want to model data in unusual, perverse, or vexatious ways
> (even CS people who ought to know better :-) but mostly there are good
> tools for creating Schemas and DTDs built into IDEs and editors which
> allow you to test their syntactic validity even if they allow semantic
> nonsense.
>
> Type (b) is tested with standard parsing and validation tools, either
> standalone (from the console command line) or built into the interface
> of whatever editor or other IDE you are using.

I guess I meant, party, option B, and then I guess I also meant the PHP
code that might generate some XML. But I suppose that is a PHP
question. I was thinking about well-formedness, for sure, but also
enforcement of a scheme. Like, if a DTD says only one thing is allowed
in a field, and something else gets in there. I suppose that is
well-formedness too?