How to run Edwin editor in console mode

Question

I am an absolute Lisp / Scheme beginner, now trying to self-teach by reading Simply Scheme from page 1. I downloaded MIT/GNU Scheme with builtin Edwin editor. I would like to run Edwin in console mode under iTerm rather than in its default X11/XQuartz mode which takes more time to start and has eyes-hurting bitmap font display.

I found out the page Starting Edwin which lists a (console) variable under variable+: create-editor-args, I think it must be what I need, but I do not know exactly what to type under shell prompt to invoke it. I beg your pardon for asking such a stupid question.

Answer 1

To run Edwin in the terminal:

mit-scheme --eval "(edwin 'console)"

Answer 2

One of my Facebook friends told me that there are two ways of running Edwin in console mode:

1. $ DISPLAY= scheme -edit Note that the equal sign should be followed by a space character which is to assign an empty value to DISPLAY environment variable.
2. $ scheme, then in scheme REPL, (edit 'console)

Either way will go into Edwin console mode, but Edwin 3.116 (builtin with MIT/GNU Scheme Release 9.2 x86-64 for Mac OS X) will show an error message

Evaluation error:
The primitive xterm-y-size is not implemented in this version of Scheme.

And it asks if the user wants to Start debugger (y or n)?, I just press n to skip it.