[tex-k] [tex-live] xdvi problems with empty glyph
wl at gnu.org
Wed Oct 11 00:33:36 CEST 2006
> What's happening here is that T1lib's T1_SetChar() does return
> without an error (it returns a non-NULL GLYPH pointer), but the
> 'bits' field of the glyph are NULL. This only happens for .notdef or
> whitespace characters, but we couldn't figure out a way to
> distiguish these cases.
What about checking the glyph name? A glyph called `uni3000' *must*
be retained since it is an ideographic whitespace which has (normally)
exactly the same width as all other CJK characters.
> Since whitespace characters are really rare in `ordinary' fonts
> (they practically don't exist),
They do exist. *All* CJK fonts contain at least one such whitespace
glyph. For a quarter of the world's population, CJK fonts are the
`ordinary' ones :-)
> That probably means that we'd need to look at the encoding vector to
> decide whether it's really .notdef,
> but I don't know yet how to do this e.g. for a font with built-in
> encoding (using T1lib?).
Me neither, sorry.
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