Newly created scripts?

[Mikhail Zotov]

Hello everybody,

I am observing a strange behaviour of Octave-3.2.3 and 3.2.4 with
newly created files (i.e. those that do not exist at the moment a
script is started). Please, consider the following example:

# testrun.m

clear
delete("testfile*")

filename0 = "testfile";

for i=1:9,
        filename  = [filename0 int2str(i)];
        diaryname = [filename0 int2str(i) ".m"];
        opendiary = ["diary " diaryname];

        if exist(filename,"file")==2,
                delete(diaryname)
        else
                disp("Nothing to delete")
        endif
        disp([diaryname " does not exist"])

        eval(opendiary)
        disp(["i=" int2str(i)])
        diary off
        disp([diaryname " created"])

        if exist(diaryname,"file")==2,
                eval(filename)
                disp([filename " evaluated"])
        else
                disp("oops"), break
        endif
endfor
# EOF

When I run it for the first time, I get:

octave:1> testrun
error: no such file, `/path/to/testfile1.m'
error: called from:
error:   /path/to/testrun.m at line 13, column 2

The next run:
octave:2> testrun
warning: delete: no such file: testfile*
Nothing to delete
testfile1.m does not exist
i=1
testfile1.m created
i =  1
testfile1 evaluated
Nothing to delete
testfile2.m does not exist
i=2
testfile2.m created
error: `testfile2' undefined near line 2 column 1
error: called from:
error:   /path/to/testrun.m at line 26, column 3

Then run `in cycle' sometimes breaking at testfile3.m

If I comment `delete("testfile*")' at the beginning of the script and
make sure there are no testfile?.m in the Octave path, the situation
changes: on the first run, the script breaks at testfile2, on the
second run it breaks on testfile3, etc. Noticeably, `ls testfile*'
shows that the `missing' file actually exists (as does
`exist(...,"file")==2'!

I am sure all this worked in Octave releases prior to 3.2.x.  Is this
a new feature? If so, what can I do to overcome it?

TIA,
Mikhail