variable lookahead in cup? Please help.

Martin.Hampl@stud.uni-erlangen.de (Martin)
20 Aug 2003 01:34:05 -0400

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variable lookahead in cup? Please help. Martin.Hampl@stud.uni-erlangen.de (2003-08-20)
Re: variable lookahead in cup? Please help. Martin.Hampl@stud.uni-erlangen.de (2003-08-23)
Re: variable lookahead in cup? Please help. haberg@matematik.su.se (2003-08-23)
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From: Martin.Hampl@stud.uni-erlangen.de (Martin)
Newsgroups: comp.compilers
Date: 20 Aug 2003 01:34:05 -0400
Organization: 1&1 Internet AG
Keywords: parse, Java, question
Posted-Date: 20 Aug 2003 01:34:05 EDT

Hi,


I am trying to write a Paser for a simple language. I'd like it to parse
the expression 'STRING = STRING & STRING' like STRING = (STRING &
STRING)' but 'STRING = STRING & STRING = STRING' like (STRING = STRING)
& (STRING = STRING).


How on earth do I accomplish this with CUP?


With a variable lookahead it would be trivial (or so I think) but I
haven't found anything like this in the documentation.


I'd be grateful for advice,
Martin.

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