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+# Copyright (C) 2013, Eric Wong <normalperson@yhbt.net> and all contributors
+# License: GPLv3 or later (https://www.gnu.org/licenses/gpl-3.0.txt)
+require_relative '../dtas'
+require 'shellwords'
+# We always escape binary strings because paths on POSIX filesystems are
+# encoding agnostic.  Shellwords.split does give UTF-8 strings, but nothing
+# cares at that point if the encoding isn't valid (and it's right to not care,
+# again, filesystems can use any byte value in names except '\0'.
+module DTAS::XS # :nodoc:
+  def xs(ary)
+    Shellwords.join(ary.map { |s| s.b })
+  end