Henry, The other place that I have seen something like this is when running labs such as Arithmetic in the Live texts section. It happens in the very first section of that lab. Also occurs in Book of Numbers, Grade 8-7 Saxon and Linear Algebra (and perhaps labs in other categories).
It may not be related but it also strikes me as odd that the forms remain open on wdforms '' after they have been closed. A script to illustrate follows. Cheers, bob BETA=: 0 : 0 pc betavis ptop;setp wh 200 60; maxwh 200 20;cc b1 button;cn "close form"; pshow; ) betavis_b1_button=: 3 : 0 smoutput (wdforms '');'3';'Form open' betavis_close '' smoutput (wdforms '');'4';'Expected form closed but still open' status '' ) status=: 3 : 0 smoutput (wdforms '');'5'; 'Expected form closed but still open' ) betavis_close=: 3 : 'wd ''psel betavis;pclose;''' betavis_run=: 3 : 0 smoutput (wdforms '');'1' ;'No form' wd BETA smoutput (wdforms '');'2';'Form created' ) betavis_run '' > On Dec 18, 2015, at 2:53 PM, Henry Rich <[email protected]> wrote: > > So far the only problem is that sometimes the last line of the term window > (where the next command will be entered) is misplaced. > > It is easy to create the error using dissect. I haven't been able to create > it with a simpler testcase, so maybe it has something to do with the fact > that a form is drawn. dissect itself does no typeout and just draws a form > and produces a result. > > 1. Run > > dissect '3 + 5' > > This works correctly. Dissect returns with i. 0 0, so there is no typeout > and the term window is ready for the next command. The form is created. > > 2. Run > > 2 dissect '3 + 5' > > The left argument to dissect instructs dissect to return the locale of the > form. The result of dissect is now an atom, with empty shape. Observe that > there is a blank line between the line you typed in and the result of > dissect, and that the last line, where the next command will be entered, has > boxing characters. It appears that the next-command line was output before > the result of dissect. > > 3. Run > > 3 : 'i. 0 [ destroy__y $0' 2 dissect '3 + 5' > > This creates the form and immediately destroys it. The result should be a > blank line. As in case 2 above the new prompt seems to come out before the > blank line, so that the cursor is lacking the customary 3 spaces. > > 4. Run > > 3 : 'i. 0 0 [ destroy__y $0' 2 dissect '3 + 5' > > Now there is no blank line emitted by the command line, and the display is > correct. > > Finally, configure a function key to run dissect. I use > > F2;0;Dissect Line;dissect&.finddissectline_dissect_ 0 > > Type > > 3 + 5 > > then place the cursor on the 3+5 line and press F2. Note that a blank line > is added to the term window, even though the PFkey is configured not to > display. > > Henry Rich > > > > > ---------------------------------------------------------------------- > For information about J forums see http://www.jsoftware.com/forums.htm ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
