EOF error

[jkramer]

Hi,

I'm not axactly an experienced programmer, but I do make a Lisp tool in OSD every now and then.
That's why I used Lisp to make an analysis tool for a whole bunch of csv-files made by an oscilloscope. The tool works fine, except for the fact that I get this error:
LISP error:
Unexpected end of #<string-input stream from " ">.
I suspect that it's something with linefeed characters or the like, because if I delete the last line of each file, it works correctly. But because I have to work through a pile of csv files, it's no fun to have the error all the time. Is there a way to prevent this?? See aattached lisp-file and (partial) example csv-file (please rename to .csv!!).
Thanks!
Regards,
Jaap

[Wolfgang]

I answer without executing the file(s)

have a look to the last line:

PHP Code:

1.063015E+00,9E-02, , ,2.330E+00 


after split at ',' you have

PHP Code:

'("1.063015E+00" "9E-02" "" "" "2.330E+00") 


so 3rd and 4th are empty string.... what should read-from-string read in this case???

Do you know about 'trace' ? .. if not learn about it, e.g. at: How can I trace function call (written by Claus)

When tracing you'll see that calling read-from-string makes the lisp error. You have to decide what to do if there's an empty string!

a) use IKIT function sd-read-from-string, then the LISP error does not appear
b) (if (zerop (length (third regel))) (setf z :invalid) (setf z (read....)))

You as the programmer have to handle this situation.

include in your testdata:
E+00,8E-02,1.53E-01,5.080E+00
2,3,4,
aa,42,"","88",8.2

wirte one function handling this stuff and call it X times
e.g. : (defun number-extract (list index) ....)
This function returns a number in every case.. as fall back 0.0 Then the rest of your code should be able to handle a zero.

[jkramer]

Hi,

thanks a lot! I should have checked better what causes the error...
I know where to look now
Kind regards,
Jaap