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Implement Identifier Checking (for reserved characters) #16

djspiewak opened this Issue May 12, 2011 · 2 comments


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djspiewak commented May 12, 2011

Currently, it is possible to do something like this following:

Elem(None, "<", Attributes(), Group())

Clearly, this Elem name doesn't make any sense. We should run all identifiers through a regexp to ensure this case is rejected at runtime.


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jespersm commented May 13, 2011

An exception should be thrown in Elem#apply, right?
Normally, I'd go for IlleglArgumentException or similar, is this bad Scala style?


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djspiewak commented May 13, 2011

Actually, it should be thrown in the constructor for Elem. It's easier (and more efficient at runtime) if we stick with the compiler auto-generated apply method on the Elem companion object.

IllegalArgumentException is actually just right for the situation. I'm usually a bit lazy with my exceptions in Scala and I just use RuntimeException everywhere (which is definitely bad Scala style). :-) That reminds me: I really should go through and replace those instances in Anti-XML…

djspiewak added a commit that referenced this issue May 17, 2011

@djspiewak djspiewak closed this May 17, 2011

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