langium
Version:
A language engineering tool for the Language Server Protocol
54 lines • 2.52 kB
JavaScript
/******************************************************************************
* Copyright 2022 TypeFox GmbH
* This program and the accompanying materials are made available under the
* terms of the MIT License, which is available in the project root.
******************************************************************************/
import { URI, Utils } from 'vscode-uri';
export { URI };
export var UriUtils;
(function (UriUtils) {
UriUtils.basename = Utils.basename;
UriUtils.dirname = Utils.dirname;
UriUtils.extname = Utils.extname;
UriUtils.joinPath = Utils.joinPath;
UriUtils.resolvePath = Utils.resolvePath;
const isWindows = typeof process === 'object' && (process === null || process === void 0 ? void 0 : process.platform) === 'win32';
function equals(a, b) {
return (a === null || a === void 0 ? void 0 : a.toString()) === (b === null || b === void 0 ? void 0 : b.toString());
}
UriUtils.equals = equals;
function relative(from, to) {
const fromPath = typeof from === 'string' ? URI.parse(from).path : from.path;
const toPath = typeof to === 'string' ? URI.parse(to).path : to.path;
const fromParts = fromPath.split('/').filter(e => e.length > 0);
const toParts = toPath.split('/').filter(e => e.length > 0);
if (isWindows) {
const upperCaseDriveLetter = /^[A-Z]:$/;
if (fromParts[0] && upperCaseDriveLetter.test(fromParts[0])) {
fromParts[0] = fromParts[0].toLowerCase();
}
if (toParts[0] && upperCaseDriveLetter.test(toParts[0])) {
toParts[0] = toParts[0].toLowerCase();
}
if (fromParts[0] !== toParts[0]) {
// in case of different drive letters, we cannot compute a relative path, so...
return toPath.substring(1); // fall back to full 'to' path, drop the leading '/', keep everything else as is for good comparability
}
}
let i = 0;
for (; i < fromParts.length; i++) {
if (fromParts[i] !== toParts[i]) {
break;
}
}
const backPart = '../'.repeat(fromParts.length - i);
const toPart = toParts.slice(i).join('/');
return backPart + toPart;
}
UriUtils.relative = relative;
function normalize(uri) {
return URI.parse(uri.toString()).toString();
}
UriUtils.normalize = normalize;
})(UriUtils || (UriUtils = {}));
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