Re: [matplotlib-devel] [PATCH] don't print undefined glyphs in ps backend

[Evgeniy S. <eug...@gm...>]

On Wednesday 14 February 2007 21:53, Nicolas Grilly wrote:
> On 2/14/07, Evgeniy Stepanov <eug...@gm...> wrote:
> > FT2Font.get_charmap() returns a mapping from glyph index to character
> > code. This looks like a very bad design decision to me, because several
> > character codes can correspond to one glyph. For example, in Times New
> > Roman, both 0x32 (space) and 0xA0 (nbsp) are mapped to glyph index 3. Of
> > course, the first one gets lost in get_charmap().
> >
> > I think, get_charmap should be fixed to return mapping from character
> > codes to glyph indices. Alternatively, get_charmap() could be left as it
> > is,  and get_rcharmap() added.
>
> I agree with you. I've already posted something about this issue some
> time ago: http://sourceforge.net/mailarchive/message.php?msg_id=37418828
>
> > I'm willing to implement either one. Which do you prefer ?
>
> I think we should prefer the first alternative: I've made a quick grep
> through matplotlib's code and I've observed that each time get_charmap
> is called, the returned dict is never used as is, but immediately
> reversed.

I also prefer the first way. Here is the patch. Please re-check at least the 
changes to mathtext.py, I could miss something. mathtext_demo.py still works, 
but it obviously does not test all the changes.