[antlr-interest] How can I use my grammar's tokens without them being considered tokens?

[Avid Trober]

For example,  "SERVICE" is a keyword in my grammar:

 

tokens

{

                SERVICE = 'SERVICE';

                OTHER_KEYWORD = 'OTHER_KEYWORD'

.

}

 

Therefore, I can't use SERVICE as a value to OTHER_KEYWORD, like this:

 

OTHER_KEYWORD=SERVICE

 

Based on this grammar rule:

 

keywordValuePair

                :               keyword=identifier EQUAL
keywordValue=identifier

                                -> ^(KEYWORD_VALUE_PAIR $keyword
$keywordValue)

 

In fact, I can't use *any* token in my grammar on the right side of the
equal sign above.

 

There are times when I want SERVICE, or any value in tokens {.}, to be
considered an IDENTIFIER, not a token:

 

identifier 

                : IDENTIFIER;

.

IDENTIFIER : ( 'A' .. 'Z' | 'a'..'z' | '_') ( 'A' .. 'Z' | 'a'..'z' | '0' ..
'9' | '_' | '.' )* ;