Le lundi 27 août 2007 à 18:47 +0200, Nicolas Mailhot a écrit : > BTW after talking with Behdad and upstream on irc we'll probably try to > switch dejavu-lgc & dejavu at the start of the F9 cycle. BTW #2 Supporting unicode blocks like arabic by default is only possible today because the tools have learnt to select different variants of the same glyph depending on the language being rendered (ie farsi users will get farsi-friendly variants, and arabic users arabic-friendly variants at the same codepoints). In particular Behdad Esfahbod recently added "locl" opentype support to Pango. Kuddos to Behdad! However this is not the end of the story. Strictly speaking arabic (and many other non-european scripts) also need support of the "base" opentype feature to be rendered properly (base allows specifying different metrics for different unicode blocks within a single font, and not constrain everything with the metrics of the latin block) Supporting those scripts without base will mean a metric migration once base support is included in the tools at last. ie the fonts will have to be partly re-done, and every office document using them will have layout changes if they use one of the complex scripts (and business users will complain). This will also affect documents that use proprietary pan-unicode fonts such as those produced by the Microsoft Typography group. Therefore I'd like to point out to the PTB it might be a good idea to allocate some time @rh for Behdad to add base support to pango sooner rather than later, and avoid this painful migration altogether. (Of course this assumes the PTB read fedora-devel) Regards, -- Nicolas Mailhot
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