Re: Preview in grammar

"Ulrich Frank" <franku@fmi.uni-passau.de>
9 May 2006 00:54:35 -0400

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From: "Ulrich Frank" <franku@fmi.uni-passau.de>
Newsgroups: comp.compilers
Date: 9 May 2006 00:54:35 -0400
Organization: http://groups.google.com
References: 06-05-01106-05-015
Keywords: parse

Hello Hans,


thanks for this really important info, that LALR(1) is not suitable for
error reporting. However in SableCC a good error reporting is realized,
although SableCC also is LALR(1). I think this can be realized because
the lookahead token are not calculated at runtimethe but at the same
time the parser is gettiing generated from the grammar.


So I have to possibilities: either I realize the calculation of the
lookahead token like in sablecc or I take an LR(1) parser.


I haven't searched for a LR(1) parser generator yet (I will do this
after this message ;), but do you know a good one?


Ulrich Frank


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