Some open questions with regard to the error messages sent by the checker:
we should probably have a style guide of some sort; for instance, I don't think we should be using "you" or "your Web page" (the user of the checker may not be the owner of the Web page in the first place); also, it should be clear whether the messages start with a capital letter, finish with a period
I'm not clear whether we can put markup in the error messages or not
in many cases, we will want to bind an error message with a specific file, and ideally, a specific line in the said file; the checker should make it easy to do that binding
the messages we'll be sending have 3 goals:
* identify an issue
* explain why it is a problem
\ give guidance on how to fix the problem
these 3 levels should probably be managed separately (since there are cases where we will want a subset of the 3 levels)
we had talked about various degrees of errors
we discussed using a well-known localization framework to make it easier for others to manage or contribute to translations
Some open questions with regard to the error messages sent by the checker: