Re: Semantic error recovery

isckbk@leonis.nus.sg (Kiong Beng Kee)
Wed, 10 Nov 1993 05:07:34 GMT

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Newsgroups: comp.compilers
From: isckbk@leonis.nus.sg (Kiong Beng Kee)
Keywords: errors, Pascal
Organization: National University of Singapore
References: 93-11-023
Date: Wed, 10 Nov 1993 05:07:34 GMT

Steve Boswell (whatis@gni.ai.mit.edu) wrote:
: Are there compilers that recover from semantic errors without a cascade of
: meaningless error messages? How do they do it?


A Model Implementation of Standard Pascal (Welsh) describes a scheme of
using dummy values in place of undeclared identifiers ..etc so that
such errors are merely reported once.


The simplier book "Structured Systems Programming" (same author) also
describes the technique. Actually, syntactic error recovery in this
book is also very neat.
--

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