Minimum Distance Error Recovery for LR Parsers
Dain, J.A. (1992) Minimum Distance Error Recovery for LR Parsers. Technical Report. Department of Computer Science, Coventry, UK.
We present a method for recovering from syntax errors encountered during parsing. The method provides a form of minimum distance repair, has linear time complexity, and is completely automatic. It is incorporated into the LR parser-generator yacc in such a way that the compiler writer can generate a parser with recovery without providing any additional information to yacc |Error messages phrased in terms of source input are generated automatically. We present a formal method for evaluating the performance of error recovery methods, based on global minimum-distance error correction, and show that the error recovery method presented achieves a theoretically best performance on 80 percent of Pascal programs in the Ripley-Druseikis collection.
|Item Type:||Monograph (Technical Report)|
|Subjects:||Q Science > QA Mathematics > QA75 Electronic computers. Computer science|
|Divisions:||Faculty of Science > Computer Science|
|Depositing User:||Mr Ebrahim Ardeshir|
|Date Deposited:||24 Apr 2012 14:02|
|Last Modified:||01 Nov 2012 18:06|
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