[antlr-interest] Tokens and context

[John Lam]

I've been scratching my head over this one. Here's the general problem:
I want to be able to use "*" as a wildcarding character. The problem is
that it can be treated as either a token or as part of an identifier.
Consider:

public void System.Foo();

I would also like to find this method using the following expressions:

[1] * void System.Foo();
[2] public void *();
[3] public void System.*();
[4] public void S*.*();

The problem is that * is treated as a token in [1] and as part of the
identifier in cases 2-4. 

Is there a general solution to this problem? Currently I'm using a
really crufty hack that involves creating a new token ("any") to
represent * in the accessibility modifiers.

Thanks!

-John
http://www.iunknown.com

 

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