From bug-octave-request at bevo dot che dot wisc dot edu  Fri Nov  6 13:34:15 1998
Subject: more 2.1.8 problems
From: "John W. Eaton" <jwe at bevo dot che dot wisc dot edu>
To: Joao Cardoso <jcardoso at inescn dot pt>
Cc: bug-octave <bug-octave at bevo dot che dot wisc dot edu>
Date: Fri, 6 Nov 1998 13:33:49 -0600 (CST)

On  6-Nov-1998, Joao Cardoso <jcardoso at inescn dot pt> wrote:

| Also, I don't know how to use the new `for i=string',
| 
| octave-2.1.8:2> a="a b c d"
| a = a b c d
| octave-2.1.8:3> for i=a;i,end
| error: invalid type in for loop expression near line 3, column 1
| octave-2.1.8:3> for i="a b c";i,end
| error: invalid type in for loop expression near line 3, column 1
| 
| This already worked in 2.1.7, but I thing that it is not what is meant:
| 
| octave-2.1.8:9> for m ="a":"d";m,end
| m = 97
| m = 98
| m = 99
| m = 100

Try

  for i = ["foo"; "bar"], i, endfor

It works on the columns of a character matrix, for compatibility with
Matlab.

| Sometimes issuing `hold on' gives a parse error, while `hold "on"' does
| not, e.g, if my ~/.octaverc has
| 
|    LOADPATH=["~/octave//::" DEFAULT_LOADPATH]

This problem was due to a bug in the parser that should be fixed in
2.1.10.

Thanks,

jwe