@fauton/cfg/dist/convertGrammarToString.js

A package to work with context free grammars and LL1 parsers

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.convertGrammarToString = void 0;
/**
 * Convert a cfg to its string representation
 * @param productionRules Production rules record
 * @returns A string corresponding to the cfg rules
 */
function convertGrammarToString(productionRules) {
    const grammarStringLines = [];
    const productionRulesEntries = Object.entries(productionRules);
    productionRulesEntries.forEach(([variable, rules]) => {
        grammarStringLines.push(`${variable} -> ${rules.map((rule) => (rule.length === 0 ? 'ϵ' : rule)).join(' | ')}`);
    });
    return grammarStringLines;
}
exports.convertGrammarToString = convertGrammarToString;