Re: Non-descriptive error-message

[Richard Stallman]

    Of course, but then I can not signal an error *in the same way* to the
    user. error will pop-up the debugger

`error' signals an error, which may or may not invoke the debugger,
depending on various details, including the error message.

    emacs -q -f eval-print-last-sexp 

    you see only "End of file during parsing" message in the
    echo-area.

This is an error message.  This error may or may not invoke the
debugger, depending on various details.

To signal an error exactly the way the reader does it, you
can do this:

   (signal 'end-of-file
           (if (stringp load-file-name)
               (list load-file-name)))