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Bug#931305: xterm: problems with Greek pi (π) and box-drawing



On Tue, Jul 09, 2019 at 03:00:46PM +0300, Protesilaos Stavrou wrote:
> Dear Thomas,
> 
> On 2019-07-08 20:08, Thomas Dickey wrote:
> > actually that's not a proportional font (it's fixed-pitch)
> 
> Apologies for my mistake.  I meant "outline font", as opposed to bitmap 
> fonts.

Either way, it's the documented behavior:

               If “false”, xterm checks for missing glyphs in the font and
               makes line-drawing characters directly as needed.  If “true”,
               xterm assumes the font does not contain the line-drawing
               characters, and draws them directly.  The default is “false”.

By the time it displays that Greek pi, xterm has forgotten whether it got
there because of the VT100-feature or via some UTF-8.

I'll add a table to that part of the manual page to help make this
instance clearer.

-- 
Thomas E. Dickey <dickey@invisible-island.net>
https://invisible-island.net
ftp://ftp.invisible-island.net

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