parser generator

LALR Parser Generator

The LALR Parser Generator (LPG, formerly known as JikesPG) is an open source lexical analyzer generator and LALR parser generator for the Java programming language. The input grammars are written as BNF rules. LPG supports backtracking to resolve ambiguities and generates code for the representation of abstract syntax trees. One of the strengths of LPG is its error recovery method.

The Java development tools of the IDE Eclipse use LPG to generate a parser for parsing Java.

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