[antlr-interest] A question on Mr. Parr's book--Page 45
Bryan S Follins
asalh at mindspring.com
Wed Jul 22 17:27:04 PDT 2009
Chap 3, page 45:
There is a snippet of code that reads:
prog: stat+
stat: expr NEWLINE
| ID '=' expr NEWLINE
| NEWLINE
;
If I attempt to make a small grammar to test this, like the following:
Grammar P;
prog: stat+
stat: expr NEWLINE
| ID '=' expr NEWLINE
| NEWLINE
;
Will the grammar work in ANTLR Works? When I try, I get "reference to
undefined rule: expr." How do I
correct that error?
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