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subrule of subrule immediately fails

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From:
terrence.x.brannon
Date:
October 23, 2007 11:32
Subject:
subrule of subrule immediately fails
Message ID:
OFDFB6C4B4.9555E24E-ON8525737D.0064EEE7-8525737D.0065B937@jpmchase.com
The following grammar (piece) works fine:

geoloc: geoloc_ and(?) geoloc_ | geoloc_
geoloc_: city | state | country | area

but per 
http://search.cpan.org/~dconway/Parse-RecDescent-v1.95.1/lib/Parse/RecDescent.pm#Subrules

I want distinct geoloc values, so I did this:

geoloc: geoloc1 and(?) geoloc2 | geoloc_
geeloc1: geoloc_
geeloc2: geoloc_
geoloc_: city | state | country | area


but then the autotrace immediately fails:

 2|tok_of_ty|                                      |" bahrain kuwait"
 2|tok_of_ty|Trying subrule: [geoloc]              |
 3|  geoloc  |Trying rule: [geoloc]                 |
 3|  geoloc  |Trying production: [geoloc1 and       |
  |          |geoloc2]                              |
 3|  geoloc  |Trying subrule: [geoloc1]             |
 3|  geoloc  |<<Didn't match subrule: [geoloc1]>>   |

--
Terrence Brannon - SID W049945
614-213-2475 (office)
614-213-3426 (fax)
818-359-0893 (cell)



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