e: lynx-dev [BUGS 2.8.3.dev4] partial, off-by-one

[Ilya Zakharevich]

>On Sun, 18 Jul 1999, Ilya Zakharevich wrote:
>> b) In a lot of situations I see the "-more-" prompt written one char
>>    too early: first dash is on the last column of the last-but-one
>>    line.  The resulting scrolling messes up the display (AHA, probably
>>    the opposite: it is written on the last position of the last line,
>>    but the scrolling moves it to the previous line).
>>
>>    The simplest way to reproduce it here is to do
>>
>>    h ^L

Or easier: open .html.gz file, press ^L.

>If your problem is that your curses library cannot deal with
>positioning on the last screen position without somehow leading to
>scrolling, AND you cannot avoid that with the right setting of
>-show_cursor, you should probably talk to "HV"; in MainLoop.c:
>
>    /* turn off cursor since now it's probably on statusline -HV */
>    move((LYlines - 1), (LYcols - 1));

a) Cursor can be placed at LR corner without any problem (with no .gz).

b) -show_cursor does not change anything;

c) Applying the patch does not change anything.

I ran several TERM=debug sessions.

======== As shown after ^L (do not wrap lines!)


   http://www.wfbr.edu/, and wfbr/dir/lynx will be treated as
   http://www.wfbr.edu/dir/lynx, but gopher.wfbr.edu/11/_fileserv/_lynx
                                                                               -
more- file://localhost/F:\emx.add\lib\lynx_help\lynx_url_support.html.gz#http

======== TERM=debug output before ^L (wrapped):

 treated as<cm30,3><md>http://www.wfbr.edu/<me>, and <md>wfbr/dir/ly
nx<me> will be treated as<cm31,3><md>http://www.wfbr.edu/dir/lynx<me
>, but <md>gopher.wfbr.edu/11/_fileserv/_lynx<me><ll><mr>-more- file
://localhost/F:\emx.add\lib\lynx_help\lynx_url_support.html.gz#http<
me><cm2,9><mr>http, https<me><cm32,79>

======== TERM=debug output after ^L (wrapped, ÿ means \xFF):

ÿandÿwfbr/dir/lynxÿwillÿbeÿtreatedÿas<rpÿ18>ÿ<ae><me><as><mb><md><mh
><mr><so><mp><mk><us>ÿÿÿhttp://www.wfbr.edu/dir/lynx,ÿbutÿgopher.wfb
r.edu/11/_fileserv/_lynx<rpÿ8>ÿ<ae><me><as><mb><md><mh><mr><so><mp><
mk><us><rpÿ79><ae><me><le><as><mb><md><mh><mr><so><mp><mk><us>ÿ<ae><
me><le><IC1><as><mb><md><mh><mr><so><mp><mk><us>ÿ<ae><me><cr><as><mb
><md><mh><mr><so><mp><mk><us>-more-ÿfile://localhost/F:\emx.add\lib\
lynx_help\lynx_url_support.html.gz#http<ae><me> <le> <le><IC1> <le><
cm2,9><mr>http, https<me><cm32,79>


I cannot read this, sorry, but maybe somebody will be able to diagnize
the problem.  (BTW, why \xFF?)  This is the latest ncurses on OS/2 in
a VIO window.

Ilya