rtf-stream-parser/dist/src/features/checkVersion.js

Stream Transform class to tokenize RTF, and another to de-encapsulate text or HTML

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.checkVersion = void 0;
exports.checkVersion = {
    allTokenHandler: (global, token) => {
        if (global._count === 1 && token.type !== 0) {
            throw new Error('File should start with "{"');
        }
        if (global._count === 2 && (token.word !== 'rtf' || (token.param && token.param !== 1))) {
            throw new Error('File should start with "{\\rtf[0,1]"');
        }
    },
    preStreamFlushHandler: global => {
        if (global._count === 0) {
            throw new Error('File should start with "{"');
        }
        else if (global._count === 1) {
            throw new Error('File should start with "{\\rtf"');
        }
    }
};