external editor under cygwin

Hello,

I didn't find in the huge documentation the right way to setup my external editor (emacsclient) under cygwin to open the file correctly.

Menu: tools / options / text editor / alternate editor

Because of the eternal problem of \ and spaces in the filename path from Windows to Unix

I would like Quartus to open the file on my emacserver with the CYGPATH not with the windows path because the emacsclient editor is unable

to find it. So it opens a void buffer.

My quartus is launched from a cygwin xterm so the server is correctly recognized. The problem remains the filepath that is passed to the client as "windows style"

As the %f entered in the option field (%f no such matter found in doc!) represents the windows filename. I have tried a lot of tricks but all have failed.

Is someone of you have a trick to workaround this ?

Also why not to include in Quartus further releases a global env variable to say: Use ALWAYS unix style filenames ? that are quite well understood by both Os.