eliza-core/_esm2015/Reassemble.js

A rendition of ELIZA program engine by Weizenbaum sharable for all javascript environments

import * as estring from './estring';
import { UnexpectedNumberException } from './exceptions';
export class Reassemble {
    constructor($template, $decompose, $annotate) {
        this.template = $template;
        this.decompose = $decompose;
        this.annotate = $annotate;
    }
    isAnnotated() {
        return !!this.annotate;
    }
    getAnnotate() {
        if (!this.annotate) {
            throw new Error('This Reassemble is not annotated');
        }
        return this.annotate;
    }
    getTemplate() {
        return this.template;
    }
    assemble(decomposedTokens) {
        let ruleTemplate = this.template;
        do {
            const lines = estring.match(ruleTemplate, 'goto *');
            if (lines && lines[0]) {
                return {
                    gotoKey: lines[0],
                };
            }
        } while (0);
        let work = '';
        do {
            if (estring.match(ruleTemplate, '(#)*')) {
                ruleTemplate = ' ' + ruleTemplate;
                continue;
            }
            const lines = estring.match(ruleTemplate, '* (#)*');
            if (!lines) {
                break;
            }
            ruleTemplate = lines[2];
            const n = parseInt(lines[1], 10) - 1;
            if (isNaN(n)) {
                throw new UnexpectedNumberException(lines[1], 'reassembly');
            }
            if (n < 0 || n > decomposedTokens.length) {
                throw new Error(`Fatal Error: Substitution number is bad ${lines[1]} in ${this.getTemplate}`);
            }
            const term = decomposedTokens[n];
            work += `${lines[0]} ${term}`;
        } while (true);
        work += ruleTemplate;
        return { result: work, annotation: this.annotate };
    }
}