OpenEuphoria

Re: bug in position()

• Posted by Robert Craig <rds at RapidEuphoria.com> Sep 25, 2005
• 466 views

Robert Craig wrote:
> jacques deschênes wrote:
> > As windows consoles may have more than 25 lines, there is a bug with the
> > actual implementation
> > of position().
> > If line is greater than 25 euphoria crash. (tested on windows xp pro)
> > 
> > exemple:
> > }}}
<eucode>
> > include graphics.e
> > sequence pos
> > pos = get_position()
> > position(pos[1],pos[2]-1) -- crash if pos[1]>25
> > </eucode>
{{{

> 
> Ok, thanks Jacques.
> I duplicated the problem on my machine.
> I'll fix it for the next release.
> A couple of other people have reported similar 
> problems with consoles over 25 lines. It's not just 2.5, 
> but earlier releases too.

As a quick fix, try calling text_rows()
in graphics.e. That seems to tell Euphoria about the larger number
of lines, and stop it from giving a false error report. e.g.

include graphics.e
sequence pos

if text_rows(43) then
end if
pos = get_position()
position(pos[1],pos[2]-1) -- crash if pos[1]>25

The ed editor does that, and it handles
console windows with a large number of lines.

Regards,
   Rob Craig
   Rapid Deployment Software
   http://www.RapidEuphoria.com