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Error tokens and GLR

From: Frank Heckenbach
Subject: Error tokens and GLR
Date: Thu, 12 May 2005 06:18:13 +0200
User-agent: semail 20050409

I was wondering about error recovery in GLR parsers. When can a GLR
parser generate error tokens? Is it only when it's non-split? I
suppose so, as otherwise it might be dangerous as rules containing
an error reduction could e.g. end on a higher %dprec than a correct
parse, but I'd like to be sure.


Frank Heckenbach, address@hidden
GnuPG and PGP keys: http://fjf.gnu.de/plan (7977168E)

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