First, in addition to any full screen editor IBM APL2 has, it has the regular line editing standard with APL too.
Second, I am not suggesting the GNU APL add a screen editing capability. Third, I went into IBM APL2 and confirmed both errors reported by Hans-Peter. GNU APL is in error here. Thanks. Blake McBride On Thu, Mar 12, 2020 at 1:05 PM Hans-Peter Sorge < hanspeterso...@netscape.net> wrote: > > > > -------- Weitergeleitete Nachricht -------- > Betreff: Re: Function editing and line editing have inconsistencies. > Datum: Thu, 12 Mar 2020 19:04:38 +0100 > Von: Hans-Peter Sorge <hanspeterso...@netscape.net> > <hanspeterso...@netscape.net> > An: Blake McBride <blake1...@gmail.com> <blake1...@gmail.com> > > I'd like it that way. > > In IBM APL2 you can do full screen editing. But in Gnu-APL only line > editing can be done. > > I think it would be a rather big change to the terminal functionality to > make it work like IBM APL2. > > I did use emacs / M-x shell. This can handle screen editing of any line > (input and output). > However the original line being edited gets echoed too and > as more than one line can be edited only the most recent line which was > edited gets echoed, > and any other line that was edited too, remains as is. > In IBM-APL2, any line changed will become an input line. > > Best Regards, > Hans-Peter > > > Am 12.03.20 um 15:57 schrieb Blake McBride: > > I would suggest looking at IBM APL2 and just do what they do. > > --blake > > > On Thu, Mar 12, 2020 at 9:42 AM Hans-Peter Sorge < > hanspeterso...@netscape.net> wrote: > >> Hi, >> >> There are two inconsistencies (and slightly annoying) when editing: >> >> 1 - is a small inconsistency when deleting lines in editor mode. >> >> ∇X[⎕] >> [0] X >> [1] a >> [2] b >> [3] c >> [4] d >> [5] e >> [6] f >> ∇ >> [7] [∆1-3] the editor only deletes lines 1 and 2 >> [6] [⎕] >> ∇ >> [0] X >> [3] c >> [4] d >> [5] e >> [6] f >> ∇ >> [7] [∆4-7] but the editor complains, if I want to delete the last line >> ∇-command failed: Bad line number N in [M∆N] >> [7] [∆4-6] again last line is being excluded from delete >> [6] [⎕] >> ∇ >> [0] X >> [3] c >> [6] f >> ∇ >> [7] [∆6] need to delete last line in an additional step. >> [7] [⎕] >> ∇ >> [0] X >> [3] c >> ∇ >> >> Expected: delete lines x to y including line y in [∆x-y] >> >> >> 2 - moving cursor to previous line(s) skips most recent entry >> >> enter: >> 123 >> 123 >> 456 >> 456 >> >> cursor up - display entry line 456 >> cursor up - display entry line 123 >> cursor down - display entry line 123 >> cursor down - display current entry line >> cursor up - display line 123 - should be line 456 >> >> In general: >> after ENTER, the cursor moves one line up >> after a CURSOR move up/down, the cursor moves two lines up. >> This is also true during function editing. >> >> Expected: cursor move should be line by line. >> >> Best Regards, >> Hans-Peter >> > >
