Subj : Reading the scan_ptr for the 'mail sub'
To : Nightfox
From : Digital Man
Date : Sun Mar 22 2015 08:57 pm
Re: Reading the scan_ptr for the 'mail sub'
By: Nightfox to Khelair on Sun Mar 22 2015 08:29 am
> Re: Reading the scan_ptr for the 'mail sub'
> By: Khelair to All on Sat Mar 21 2015 10:42:31
>
> Kh> While implementing a new mail interface for my shell, it appears that
> Kh> I'm not able to utilize the scan_ptr in the same way that I have been
> Kh> using in the message base interface that I've done... There, I was
> Kh> utilizing msg_area.sub[bbs.cursub_code].whatever... Here, even when I
> Kh> specify manually msg_area.sub['mail'].scan_ptr, I still find it
> Kh> undefined. Can anybody tell me if there is a different way to go about
> Kh> locating the current message/scan_ptr in mail or should I get ready to
> Kh> toss up some code snippets?
>
> I've been working on a new message reader, and I've found that the msg_area,
> and it seems to me that the "mail" is a special case in that the
> msg_area.grp, msg_ara.sub, etc. arrays don't seem to be defined for the
> "mail" area. Those arrays seem to be only defined for the sub-boards. So,
> I don't think there is a last-read pointer, etc. defined for the "mail"
> area. If you want to find the last read message for a user in the "mail"
> area, you'll need to go through all messages in the "mail" area, look for
> the ones written to the current logged-in user, and look at the 'attr' field
> in the message headers and find the last one that has the MSG_READ attribute
> set. For example, something like this:
>
> var msgbase = new MsgBase("mail");
> if (msgbase.is_open)
> {
> var lastReadMsgIdx = 0;
> for (var i = 0; i < msgbase.total_msgs; ++i)
> {
> var msgHdr = msgbase.get_msg_header(true, i, true);
> if ((msgHdr.to_ext == user.number) && ((msgHdr.attr & MSG_READ) ==
> MSG_READ))
> lastReadMsgIdx = i;
> }
> msgbase.close();
> }
> else
> console.print("Uh-oh, failed to open personal mail!\r\n\1p");
Users can read their mail out-of-order, so the concept of "lastReadMsgIdx"
doesn't really apply here.
digital man
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