>        ISA parser: Loosen the regular expressions matching filenames.
>
>        The regular expressions matching filenames in the ##include directives 
> and the
>        internally generated ##newfile directives where only looking for 
> filenames
>        composed of alpha numeric characters, periods, and dashes. In 
> Unix/Linux, the
>        rules for what characters can be in a filename are much looser than 
> that. This
>        change replaces those expressions with ones that look for anything 
> other than
>        a quote character. Technically quote characters are allowed as well so 
> we
>        should allow escaping them somehow, but the additional complexity 
> probably
>        isn't worth it.

I still think that my changes to the Grammar class to support
importing while building a scanner that uses it would be a good future
solution.

Those changes are in reviewboard as #715.

  Nate
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