[HarfBuzz] Problem with shaping Serif fonts

[Richard Wordingham]

On Wed, 9 Oct 2013 10:32:40 +0200
Eduardo Castiñeyra <eduardo at brainstorm.es> wrote:

> Does it also depend on the language? If one script have one ligature
> it doesn't mean every language makes use of it.

With sophisticated enough rendering, yes, it can depend on the
language.  Apart from matters of taste, the dotless fi ligature is
singularly inappropriate for Turkish.

The DejaVu Sans font will treat comma below and cedilla as equivalent
for 's' and 't', but select different forms depending on the language.
Strictly, this behaviour is not compliant with Unicode, as it is
tampering with the meaning of the text, but some will find that this
behaviour works better for them.

Richard.