Make characters have the width the terminal expects

[b-jonas0]

Since this is a fixed width font, it would be nice if you could ensure that the characters that a terminal considers single cell wide are single cell wide. That would make it possible to use the font in a terminal. The most prominent example where this isn't currently true are the em-dash \x{2014}, but there are more.

It would also be nice if you had single cell wide glyphs (in addition to the current double cell glyphs) of the arrow characters that you claim have an ambiguous width, most importantly the left arrow \x{2190}, the up arrow \x{2191}, and the right arrow \x{2192}, but there are more such characters.