Re: how test for empty sub-sequence?
Kat,
Yeah, that's such a good idea that I actually CAUSED my problem doing ALMOST
that very thing! What I had done was, I had previously stored "a" default
in it from one routine, but it was a text string, and my later code using it
expected a number there, & bombed when it saw the text & did ok when it got
the actual font size number from a different routine. What I had sorta
meant all along & forgot, was to put a default FONT SIZE in the variable, &
that would have probably worked just fine all along. When I finally made
the dang variable print out, it didn't have a number and it wasn't empty
either: it had my "default" test text in it. So if I HADN'T put "my"
default in, it probably would have resulted in the problem you suggested,
but putting "my" default value in (instead of a more valid one) MADE the
problem I experienced, sigh! Oh well, I THINK I'm learning, maybe. :)
It's a good thing I don't give up easily.
Dan
-----Original Message-----
>----- Original Message -----
>From: Dan B Moyer <DANMOYER at PRODIGY.NET>
>To: <EUPHORIA at LISTSERV.MUOHIO.EDU>
>Sent: Saturday, January 29, 2000 1:09 AM
>Subject: Re: how test for empty sub-sequence?
>
>
>
>> The problem relates to when I try to set fontsize from info that was
>stored
>> into disk file & then read back out into a "structured"(?) variable; it
>> works ok when I actually DO store font size info, & crashes if I haven't,
>> that's why I thought I was trying to read an empty sequence.
>
>Have you considered storing "default" if there is nothing to store, sounds
>like what is happening is that nothing is stored, so the data read is
>shifted one field up in your structured vars,, and all the records after
>that one will be shifted also.
>
>Kat
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