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<font face="Helvetica, Arial, sans-serif">Hi Leslie,<br>
<br>
traditionally LIBREF-0 aka. the default library, has been assumed
to be a non-shared library.<br>
The reason is that:<br>
<br>
1. You need at least one non-shared (i.e per user) library.
Exactly for storing the )CONTINUE workspace, and<br>
2. many users (or at least myself) do not set up additional
libraries.<br>
<br>
</font>I just tested IBM APL2 (PC version) and they also store the
CONTIUNUE workspace in the default library.<br>
Their library tree lives in a somewhat odd place: <b>C:\Program
Files/ibmapl2w</b>. This roughly corresponds<br>
to something like <b>/usr/bin/ibmaplw</b> on GNU/Linux and would
violate the file system hierarchy standard<br>
(FHS). You also get the same behavior that you describe below.
Except that Windows is not normally used by<br>
different users.<br>
<br>
So IBM APL2 uses <b>C:\Program Files/ibmapl2w\</b> for what is
called the library root in GNU APL and uses<br>
the following fixed (non-configurable) mapping between library
numbers and the sub directories of the lib root:<br>
<br>
0: bin<br>
1: wslib1<br>
2: wslib2<br>
<br>
GNU APL has adopted the naming (read: wslibN) of IBM APL2, but with
the following changes:<br>
<br>
* use <b>workspace</b> instead of <b>bin</b>,<br>
* use <b>10</b> lib numbers instead of <b>3</b>, and<br>
* make every library number configurable so that the user has full
control over where the libraries live.<br>
<br>
It may be that IBM APL2 supports more than 2 wslib directories but
only 2 are being installed by<br>
IBM APL2. In those they store some workspaces shipped with IBM APL2.
I would say that the IBM lib<br>
numbers 1 and 2 roughly correspnd to GNU APL lib numbers 3, 4, and 5
in that they are used for<br>
workspaces shipped with GNU APL.<br>
<br>
The cool thing in your Dropbox setup is that you can say )CONTINUE
on one machine and continue<br>
later on another machine. To me that looks more like a feature than
a bug and you can easily<br>
configure otherwise if you don't like the feature.<br>
<br>
I would also assume that the scenario below only works if A, B, and
C are logged in on the same<br>
machine or network under the same user name, because otherwise they
would get an error instead<br>
of overriding each other's CONTINUE workspace files.<br>
<br>
<br>
Best Regards,<br>
/// Jürgen<br>
<br>
<br>
<div class="moz-cite-prefix">On 05/04/2017 04:32 PM, Leslie S
Satenstein wrote:<br>
</div>
<blockquote
cite="mid:***@mail.yahoo.com"
type="cite">
<div style="color:#000; background-color:#fff;
font-family:Helvetica Neue, Helvetica, Arial, Lucida Grande,
sans-serif;font-size:13px">
<div id="yui_3_16_0_ym19_1_1493904418141_25954"><span>Here is a
simple scenario.</span></div>
<div id="yui_3_16_0_ym19_1_1493904418141_25955"><span><br>
</span></div>
<div id="yui_3_16_0_ym19_1_1493904418141_25956"><span
id="yui_3_16_0_ym19_1_1493904418141_25964">LIBREF-0
/home/group/project1</span></div>
<div id="yui_3_16_0_ym19_1_1493904418141_25970"><span
id="yui_3_16_0_ym19_1_1493904418141_25964"><br>
</span></div>
<div id="yui_3_16_0_ym19_1_1493904418141_26099"><span
id="yui_3_16_0_ym19_1_1493904418141_25964">With several
users writing code for project1</span></div>
<div id="yui_3_16_0_ym19_1_1493904418141_26100"><span
id="yui_3_16_0_ym19_1_1493904418141_25964"><br>
</span></div>
<div id="yui_3_16_0_ym19_1_1493904418141_26129"><span
id="yui_3_16_0_ym19_1_1493904418141_25964">User A issues a
command )Continue and goes to lunch</span></div>
<div id="yui_3_16_0_ym19_1_1493904418141_26148"><span
id="yui_3_16_0_ym19_1_1493904418141_25964">User B issues a
command )Continue and goes to lunch</span></div>
<div id="yui_3_16_0_ym19_1_1493904418141_26175"><span
id="yui_3_16_0_ym19_1_1493904418141_25964">User C issues a
command )Continue and goes to lunch</span></div>
<div id="yui_3_16_0_ym19_1_1493904418141_26174"><span
id="yui_3_16_0_ym19_1_1493904418141_25964"><br>
</span></div>
<div id="yui_3_16_0_ym19_1_1493904418141_26164"><span
id="yui_3_16_0_ym19_1_1493904418141_25964">Who went last was
the one whose )Continue was created for A, B, C <br>
</span></div>
<div id="yui_3_16_0_ym19_1_1493904418141_26173"><span
id="yui_3_16_0_ym19_1_1493904418141_25964">Information for
the other than last )Continue was overwritten</span></div>
<div dir="ltr" id="yui_3_16_0_ym19_1_1493904418141_26165"><span
id="yui_3_16_0_ym19_1_1493904418141_25964">Another
possibility is that of A,B,C , two of them could have been
saving or dropping )Continue</span></div>
<div dir="ltr"><span id="yui_3_16_0_ym19_1_1493904418141_25964"><br>
</span></div>
<div dir="ltr"><span id="yui_3_16_0_ym19_1_1493904418141_25964"></span>
This question is only a problem if LIBREF-0 is a shared
library. It is likely that it is shared. -- How so?</div>
<div dir="ltr" id="yui_3_16_0_ym19_1_1493904418141_26176"><br>
</div>
<div dir="ltr" id="yui_3_16_0_ym19_1_1493904418141_26177">I have
the LIBREF-0 as pointing to my /home/Dropbox/APLarea. I have
access to Dropbox from multiple systems.</div>
<div dir="ltr" id="yui_3_16_0_ym19_1_1493904418141_26178"><br>
</div>
<div dir="ltr" id="yui_3_16_0_ym19_1_1493904418141_26287">My
view is that sometime in the future, we should consider that
gnu-apl's )Continue be stored privately within a <br>
</div>
<div dir="ltr" id="yui_3_16_0_ym19_1_1493904418141_26286">/home/logonid/.gnu-apl
or as /home/logonid./apl-continue.xml <br>
</div>
<div class="signature"
id="yui_3_16_0_ym19_1_1493904418141_25712">
<div id="yui_3_16_0_ym19_1_1493904418141_25711">
<div id="yui_3_16_0_ym19_1_1493904418141_25710">
<div id="yui_3_16_0_ym19_1_1493904418141_25709">
<div id="yui_3_16_0_ym19_1_1493904418141_25708">
<div id="yui_3_16_0_ym19_1_1493904418141_25707">
<div id="yui_3_16_0_ym19_1_1493904418141_25706">
<div id="yui_3_16_0_ym19_1_1493904418141_25705">
<div id="yui_3_16_0_ym19_1_1493904418141_26288"><span
style="" lang="FR-CA"><br>
</span></div>
<div id="yui_3_16_0_ym19_1_1493904418141_26222"><span
style=""
id="yui_3_16_0_ym19_1_1493904418141_26285"
lang="FR-CA">Just some thoughts from an old
Geezer who was an APL biggot beginning 1972</span></div>
<div id="yui_3_16_0_ym19_1_1493904418141_26350"><br>
</div>
<div id="yui_3_16_0_ym19_1_1493904418141_25763"><b
id="yui_3_16_0_ym19_1_1493904418141_26268"><font
id="yui_3_16_0_ym19_1_1493904418141_26267"
size="2"> Leslie</font><br>
</b></div>
<div id="yui_3_16_0_ym19_1_1493904418141_25704"><font
id="yui_3_16_0_ym19_1_1493904418141_26270"
color="green"><b
id="yui_3_16_0_ym19_1_1493904418141_26269"><font
size="1">Leslie Satenstein</font></b></font><font
style="color:rgb(191, 0, 95);" color="green"
size="1"><span style="font-weight:bold;"></span></font><br>
</div>
<font id="yui_3_16_0_ym19_1_1493904418141_26266"
color="green" size="2"><b
id="yui_3_16_0_ym19_1_1493904418141_26265">Montréal
Québec, Canada</b><br>
</font>My first use of APL inhouse <br>
<font face="lucida console, sans-serif" size="1"><b
id="yui_3_13_0_ym1_1_1391351152837_28311"><font
id="yui_3_13_0_ym1_1_1391351152837_28310"
color="black"><span
id="yui_3_13_0_ym1_1_1391351152837_28309"
style="font-weight:bold;font-size:13.5pt;color:black;"></span></font></b></font></div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</blockquote>
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