Re: [Q] How to hook up the GUILE parser?

[Gary Houston <ghouston at freewire dot co dot uk>]

| Now my question: how do I set up a string port that does this, and how
| do I read back the number of characters taken from the port?

You could probably write a modified version of scm_eval_string from
libguile/strports.c that would do what you want.  To get the number of
characters read, you could either look at the various read_buf
pointers in the port internals, or simply call scm_ftell or scm_seek
on the string port (assuming a recent version of Guile and that you
don't run into some bug or other).