parser.js

// Martin Pravda
// parser.js

// This file contains the main implementation of the geopackage parser
// which extracts tabular data and turns them into readable tabular format

/*jslint browser, node */

import db_header from "./db_header.js";
import page from "./page.js";
import utils from "./utils.js";

function parse(view) {
    const header = db_header.parse(view);
    const enconding = db_header.encodings[header.db_text_encoding - 1];
    const pages = utils.make_empty_list(
        header.db_pages_count
    ).map(function (ignore, page_number) {
        if (page_number === 0) {

// database header resides within the first 100 bytes of the first page
// thus we need to start from the offset 100 in order to parse the page

            return page.parse(view, 100, enconding);
        }
        return page.parse(view, page_number * header.page_size, enconding);
    });

    return Object.freeze({
        header,
        pages
    });
}

export default Object.freeze(parse);