molstar
Version:
A comprehensive macromolecular library.
35 lines (34 loc) • 1.53 kB
JavaScript
/**
* Copyright (c) 2018-2023 mol* contributors, licensed under MIT, See LICENSE file for more info.
*
* @author Alexander Rose <alexander.rose@weirdbyte.de>
* @author Russell Parker <russell@benchling.com>
*/
// TODO only support compressed files for which uncompression support is available???
// TODO store globally with decompression plugins?
const COMPRESSED_EXT_LIST = ['gz', 'zip'];
export function getFileNameInfo(fileName) {
let path = fileName;
let protocol = '';
const queryIndex = path.lastIndexOf('?');
const query = queryIndex !== -1 ? path.substring(queryIndex) : '';
path = path.substring(0, queryIndex === -1 ? path.length : queryIndex);
const name = path.replace(/^.*[\\/]/, '');
let base = name.substring(0, name.lastIndexOf('.'));
const nameSplit = name.split('.');
let ext = nameSplit.length > 1 ? (nameSplit.pop() || '').toLowerCase() : '';
const protocolMatch = path.match(/^(.+):\/\/(.+)$/);
if (protocolMatch) {
protocol = protocolMatch[1].toLowerCase();
path = protocolMatch[2] || '';
}
const dir = path.substring(0, path.lastIndexOf('/') + 1);
if (COMPRESSED_EXT_LIST.includes(ext)) {
const n = path.length - ext.length - 1;
ext = (path.substring(0, n).split('.').pop() || '').toLowerCase();
const m = base.length - ext.length - 1;
base = base.substring(0, m);
}
// Note: it appears that most of this data never gets used.
return { path, name, ext, base, dir, protocol, query };
}