Re: lib/53653: Curses doesn't always show line drawing characters correctly on wsvt25

[christos%zoulas.com@localhost (Christos Zoulas)]

On Oct 10,  7:50pm, jdc%coris.org.uk@localhost (Julian Coleman) wrote:
-- Subject: Re: lib/53653: Curses doesn't always show line drawing characters

|  Hi,
|  
|  Looking at the output with tracing on, I see for the vt220 case:
|  
|    1539197247.063514: does_ctrl_o: Testing ^[[m^[(B for ^[(B$<4>
|  
|  when we check to see if turning off all attributes also turns off ACS.
|  However, the terminfo entry for vt220 doesn't contain any delay for sgr0,
|  whilst it does for rmacs:
|  
|    rmacs=\E(B$<4>, sgr0=\E[m\E(B
|  
|  so we think that sending sgr0 (i.e. when unsetting bold) didn't unset ACS
|  mode, and thus we don't set ACS mode again.
|  
|  This might be a bug in the terminfo entry and it should really have a delay
|  in both.  However, stripping the trailing delay from the end of rmacs when
|  we check is probably a more sensible solution, so the appended patch does
|  that.
|  

If trailing delays are illegal/undesired, then terminfo should warn and
the entry should be fixed. I don't think that curses should be involved :-)

christos