@yar.ua/numerals/lib/syntax/node.js

Number to text - Inflector for Ukrainian numerals

import { SyntaxEdge } from "./edge.js";
import { DummyLexeme } from "../lexeme/dummy.js";
export class SyntaxNode {
    constructor(lexeme) {
        this.lexeme = lexeme;
        this.edges = [];
    }
    add_child(lexeme, rel) {
        const child = new SyntaxNode(lexeme);
        return this.add_child_node(child, rel);
    }
    add_child_node(child, rel) {
        const edge = new SyntaxEdge(this, child, rel);
        this.edges.push(edge);
        return child;
    }
    agree() {
        this.edges
            .slice()
            .reverse()
            .forEach((edge) => edge.agree());
    }
    lexemes() {
        return [this.lexeme, ...this.edges.flatMap((e) => e.child.lexemes())];
    }
    text() {
        return this.lexemes()
            .map((l) => l.text())
            .reverse()
            .join(" ");
    }
    toObject() {
        return {
            kind: "SyntaxNode",
            lexeme: this.lexeme.toObject(),
            children: this.edges.map((e) => e.toObject()),
        };
    }
}
export class DummySyntaxNode extends SyntaxNode {
    constructor(form, persistent_form) {
        super(new DummyLexeme(form, persistent_form));
    }
    lexemes() {
        return this.edges.flatMap((e) => e.child.lexemes());
    }
}