version difference

[matt]

Hello,

I'm having some version difficulties with read-line and list-ref.  (The 
problems appeared when switching from 1.6.7 to 1.8.2).

I have a script which reads some data from a text file into a list, and 
then populates some variables with that data.

The text file looks like this:
> cat par.txt
          10
   13.1708130701843
   18.3615121206645
   29.5879195536459
   5.41594228367692
   18.1629768370565
   2.67456811999717
   3.06183233424074
   2.67554033575883
   2.59114410363339
   2.67244619822827


and the script follows:
(begin

  (define rad1 0)
  (define rad2 0)
  (define rad3 0)
  (define rad4 0)
  (define rad5 0)
  (define el1 0)
  (define el2 0)
  (define el3 0)
  (define el4 0)
  (define el5 0)

  (define (read-lines file)
    (let ((ls '()))
      (with-input-from-file file
        (lambda ()
          (do ((line (read-line) (read-line)))
              ((eof-object? line))
            (set! ls (cons line ls)))
          (reverse ls)))))

  (define parameterfilename "par.txt")

  (define parlines (read-lines parameterfilename))
  (use-modules (srfi srfi-13))
  (define rad1 (string->number (string-trim-both (list-ref parlines 1))))
  (define rad2 (string->number (string-trim-both (list-ref parlines 2))))
  (define rad3 (string->number (string-trim-both (list-ref parlines 3))))
  (define rad4 (string->number (string-trim-both (list-ref parlines 4))))
  (define rad5 (string->number (string-trim-both (list-ref parlines 5))))
  (define el1 (string->number (string-trim-both (list-ref parlines 6))))
  (define el2 (string->number (string-trim-both (list-ref parlines 7))))
  (define el3 (string->number (string-trim-both (list-ref parlines 8))))
  (define el4 (string->number (string-trim-both (list-ref parlines 9))))
  (define el5 (string->number (string-trim-both (list-ref parlines 10))))

  (display rad1)
  (display "\n")
  (display el4)
  (display "\n")
)
(exit)



At one point, I was getting an error that read-line wasn't defined.  I'm 
not sure why, but now I'm no longer getting those errors, but instead 
getting the following:

ERROR: In procedure list-ref:
ERROR: Argument 2 out of range: 1


The read-lines snippet is from the online PLEAC cookbook, which 
is supposed to be for Guile-1.8.

I found a several old posts about a previous breakage of read-line, but 
that was back in Guile 1.3.  I'm pretty confused about the difference 
between readline and read-line, and the manual didn't help clarify that.


Any tips?

Thanks!
Matt