keynote-parser2/lib/parse/parse-iwa-snappy.js

A library for parsing Apple Keynote file

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.parseIwaSnappy = void 0;
const parse_iwa_snappy_frame_1 = require("./parse-iwa-snappy-frame");
/**
 * Parse IWA file snappy-compressed data
 *
 * @see https://github.com/obriensp/iWorkFileFormat/blob/master/Docs/index.md#snappy-compression
 */
const parseIwaSnappy = (data) => {
    // unpack the snappy frames one by one and concat them
    const chunks = [];
    let cursor = 0;
    while (cursor < data.length - 4) {
        const { chunk, nextCursor } = (0, parse_iwa_snappy_frame_1.parseIwaSnappyFrame)(data, cursor);
        chunks.push(chunk);
        cursor = nextCursor;
    }
    return Buffer.concat(chunks);
};
exports.parseIwaSnappy = parseIwaSnappy;