chevrotain-allstar

LL(*) lookahead strategy for the Chevrotain parser library

Last updated 3 years ago by msujew .

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$ cnpm install chevrotain-allstar

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Chevrotain Allstar

This is a lookahead plugin package for the Chevrotain parser library. It implements the ALL(*) lookahead algorithm introduced for ANTLR4. The algorithm features unbounded lookahead, compared to the normal LL(k) behavior of Chevrotain.

Usage

When creating your parser, pass an instance of the LLStarLookaheadStrategy to the lookaheadStrategy property of the base parser constructor options.

import { LLStarLookaheadStrategy } from "chevrotain-allstar";

class Parser extends EmbeddedActionsParser {
    constructor() {
        super(tokens, {
            lookaheadStrategy: new LLStarLookaheadStrategy()
        });
        this.performSelfAnalysis()
    }
}