[CM] reading characters from keyboard in s7

[Orm Finnendahl]

Hi,

 for snd (using s7) I wrote an interactive search/replace function for
regions in a soundfile which needs to read characters from the
keyboard, whether or not to replace parts in the soundfile.

In guile you can use (read) for this purpose, in s7 this function
immediately returns #<eof>. Does someone know how to get it done and
maybe give a short example (maybe even for single characters without
having to type #\return at the end)?

--
Orm