[TxMt] Let me escape

Consider, with Input = Selected text or Line,

#!/usr/bin/env ruby require ENV["TM_SUPPORT_PATH"] + "/lib/exit_codes.rb" TextMate.exit_insert_snippet ENV["TM_CURRENT_LINE"]

This changes asd $ \ into asd \ and I am not surprised. But what is the cleanest way to get back the original line unchanged? I can manage the slashes but not the dollar. And e_sh is not a solution since it adds spurious slashes which I have to take care of.

Thanks, Piero

PS what I need is a way to pass to TextMate.exit_insert_snippet a string containing dollars slashes etc in such a way that the strings is inserted without any change. I know someone can do this