sublimetext2 - File separator customized -

is possible change file separators used in build system variables sublime text? want change variables $file c:\files\chapter1.txt c:/files/chapter1.txt, example.

thanks in advance

the thing think modify default/exec.py , replace \ /. try writing own plugin substitutions way want, call proper command. doing though require lot more work, have integrate st in general. other 2 options, don't think possible replace file separators on fly. out of curiosity, why want change separators used?