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| Related articles |
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| Error reporting (for syntactic errors) roar.foshaug@systor.st (Roar) (2007-01-08) |
| Re: Error reporting (for syntactic errors) roar.foshaug@systor.st (Roar) (2007-01-09) |
| Re: Error reporting (for syntactic errors) rsc@swtch.com (Russ Cox) (2007-01-09) |
| From: | "Russ Cox" <rsc@swtch.com> |
| Newsgroups: | comp.compilers |
| Date: | 9 Jan 2007 13:31:02 -0500 |
| Organization: | Compilers Central |
| References: | 07-01-024 |
| Keywords: | parse, errors |
| Posted-Date: | 09 Jan 2007 13:31:02 EST |
> The compiler is backtracking in the sense that if a production fails,
> the next alternative, if any, is tried, but it does NOT backtrack
> within a production.
This informal description sounds like the same thing a
packrat parser does. You might look at how the various
packrat parser generators handle error reporting:
See for example section 3.2.4 of
http://pdos.csail.mit.edu/~baford/packrat/thesis/thesis.pdf
Russ
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