[DFDL-WG] How do I ignore the case of my initiator and my elements?
Garriss Jr., James P.
jgarriss at mitre.org
Wed Jun 19 14:32:05 EDT 2013
Issue #1
Email header names have a set value, but in practice SMTP servers do what they want. So this is the required header name for content type:
Content-Type: <some value>
But variations exist, such as this:
Content-type: <some value>
Rather than trying to guess every possible combination, I think it would be good to simply ignore the case of the header name.
(I have modeled header names as initiators.)
Issue #2
The spec says that the value of the content type is case insensitive, so all the following possibilities (and more) are allowed:
Content-Type: text/html
Content-Type: TEXT/HTML
Content-Type: Text/Html
Content-Type: tExT/hTmL
So obviously I need to be able to ignore the case of the header's value.
(I have modeled the type (e.g., text) and the subtype (e.g., html) as elements. And as there's obviously a limited set of allowed for each, I've constrained these with an enumerated list.)
I have attached a simplified version of the schema I'm using for the content header. How would I modify it in order to ignore the case of the header name and the header value?
TIA!
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