lkrubner@g... wrote:

: 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?

enforcement of a scheme = validation

You want a "validating parser".  

Xerces is one such parser.  Not sure about php specific tools.


--

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