Function fromFsPath

packages/foam-core/src/utils/path.ts:198–213

(path: string)

 *     given input and authority is undefined except for UNC paths.
 */
export function fromFsPath(path: string): [string, string] {
  let authority: string;
  if (isUNCShare(path)) {
    [path, authority] = parseUNCShare(path);
  } else if (hasDrive(path)) {
    path = '/' + path[0].toUpperCase() + path.substring(1);
  } else if (path[0] === '/' && hasDrive(path, 1)) {
    // POSIX representation of a Windows path: just normalize drive letter case
    path = '/' + path[1].toUpperCase() + path.substring(2);
  }

  // Always normalize backslashes to forward slashes (filesystem → POSIX)
  path = path.replace(/\\/g, '/');

  return [path, authority];
}

/**
 * Converts a POSIX path to a filesystem path.