[Octave-bug-tracker] [bug #44924] lookfor function errors out when -all option used

[Philip Nienhuis]

Follow-up Comment #1, bug #44924 (project octave):

Had a short peek with 4.0.0-rc3 on Windows.

The actual error for "lookfor -all deblank" happens at L.118:

debug> [text, fmt] = get_help_text (fn)
error: class not found: double
error: called from
    lookfor at line 118 column 25
debug>


Variable "fn" turns out to have the value "DocSimpleDouble". Tracing back the
code I think lookfor.m stumbles over some invalid help text from quite another
function (see L. 92) before it has a chance to get to deblank's actual help
text. 
Up in the code (L.69-78) it setdiffs two PATHs, resulting in ".", and then
that's where things go wrong as there's no file "doc-cache" in a random
working directory. So the culprit seems to be that __pathorig__() returns no
"." path entry while path() does.
Prepending a ".":
'orig_path =  [".", orig_path]'
makes lookfor.m run fine. But I do not know if that is the right fix.


Your other example runs fine for me:

>> lookfor deblank
deblank             Remove trailing whitespace and nulls from S.
>>



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