Path.re

let pathSeparator = Sys.win32 ? ";" : ":";

let dirname = s => {
  Fpath.v(s) |> Fpath.parent |> Fpath.rem_empty_seg |> Fpath.to_string;
};

let normalize = s => {
  Fpath.v(s) |> Fpath.to_string;
};

let filename = s => {
  Fpath.v(s) |> Fpath.filename;
};

let extname = s => {
  Fpath.v(s) |> Fpath.get_ext;
};

let isAbsolute = s => {
  let isAbs = s |> Fpath.v |> Fpath.normalize |> Fpath.is_abs;

  if (!Sys.win32) {
    // Check for `~` at root. This is a case that should be recognized
    // as an absolute path: https://unix.stackexchange.com/questions/221970/is-documents-a-relative-or-an-absolute-path
    // but is not correctly handled.
    isAbs || String.length(s) > 0 && s.[0] == '~';
  } else {
    isAbs;
  };
};

let join = (p1, p2) => {
  let p1 = Fpath.v(p1) |> Fpath.normalize;
  let p2 = Fpath.v(p2) |> Fpath.normalize;
  Fpath.append(p1, p2) |> Fpath.normalize |> Fpath.to_string;
};