Re: information on sablecc (error recovery)

[Etienne Gagnon <gagnon.etienne_m@uqam.ca>]

Hi Pieter,

I you are willing to work on this, I would suggest that you take the approach
suggested in Andrew Appel's "Modern compiler implementation in Java" book,
*second* edition, namely:  Page 78 & 79 "GLOBAL ERROR REPAIR" (using the Burke-Fisher
error repair algorithm), which would fit quite nicely in the SableCC framework.

To change this (e.g. Burke-Fisher), you need not modify any *.java source files,
only the source *.txt files in src/org/sablecc/sablecc/.

Hava fun!

Etienne



pieter@West.NL wrote:
> Hello Mr. Gagnon,
>
> I'm planning on using your compiler compiler, but I want to adapt it al
> little. I noticed that a compiler, generared with the latest version (3.0
> beta 1) of your compiler compiler, stops as soon as an error is
> encountered in the in the input file. I want to adapt this in order to
> make the compiler continue so that other errors will be found too (for
> example by letting the compiler guess which token was omitted). However,
> in stead of goning through every single source file to find out how I can
> do this, I hoped you could tell me in which file(s) your compiler compiler
> handles the possible errors in the input file.
> If I know this, adapting the compiler compiler to my needs will at least
> be a little easier.
> Thanks in advance.
>
> Greetings,
> Pieter van der Spek
>
>
> PS If you like, I can send you my modifications
>
>
>
> -------------------
>
> Pieter van der Spek
> ---- West Consulting B.V.        - www.west.nl
> ---- Tu Delft / Computer Science - www.tudelft.nl


--
Etienne M. Gagnon, Ph.D.             http://www.info.uqam.ca/~egagnon/
SableVM:                                       http://www.sablevm.org/
SableCC:                                       http://www.sablecc.org/