@npmstuff/argdown-core/dist-esm/ArgdownTreeWalker.js

A pluggable parser for the Argdown argumentation syntax

import { EventEmitter } from "eventemitter3";
import { isRuleNode, isTokenNode } from "./model/model";
export class ArgdownTreeWalker extends EventEmitter {
    constructor() {
        super(...arguments);
        this.visitNode = (request, response, node, parentNode, childIndex, logger) => {
            if (node) {
                if (isRuleNode(node)) {
                    this.emit(node.name + "Entry", request, response, node, parentNode, childIndex, logger);
                    if (node.children && node.children.length > 0) {
                        for (var i = 0; i < node.children.length; i++) {
                            let child = node.children[i];
                            this.visitNode(request, response, child, node, i, logger);
                        }
                    }
                    this.emit(node.name + "Exit", request, response, node, parentNode, childIndex, logger);
                }
                else if (isTokenNode(node)) {
                    this.emit(node.tokenType.name, request, response, node, parentNode, childIndex, logger);
                }
            }
        };
    }
    walk(request, response, logger) {
        if (response.ast) {
            this.visitNode(request, response, response.ast, null, null, logger);
        }
    }
}
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