Hi all,
I'm starting to get the hang of instaparse and it just looks awesome!
However there is a little thing that bugs me....I may be doing it wrong
that why I'm asking here. The behaviour that I want sounds reasonable at
least to me...so here is an example:
(insta/parser
"S = TOKEN (SPACE TOKEN)* END (*any full sentence*)
TOKEN = NUM | DRUG | PK | MECH | SIGN | EFF| NEG*| WORD*
<WORD> = #'\\w+'
NUM = #'[0-9]+'
ADV = #'[a-z]+ly'
<SPACE> = #'\\s+'
DRUG = #'(?i)didanosine|quinidine'
PK = #'(?i)exposure|bioavailability|lower?[\\s|\\-]?clearance'
MECH = #'[a-z]+ed'
EFF = SIGN? MECH | MECH SIGN?
SIGN = ADV | NEG
NEG = 'not'
END = '.' " ))
The result of this is a parser which sees everyhting as :TOKEN. That is
because WORD matches almost everything. However I thought that putting
it last would remedy the situation...it seems that the most general rule
is applied first. Is that by design?Am I going about it the wrong way?
also, I'd like to pass a function instead of a regex in the DRUG rule.
I'd like to have it check a dictionary instead of matching a regex. Is
that at all possible?
many many thanks,
Jim
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