On Sun, 19 Jun 2016 16:34:23 -0400 Kelvin Ma <kelvinsthirt...@gmail.com> wrote:
> When using the python harfbuzz bindings, how do I access the harfbuzz enums > for direction, script, & language? Also can someone explain the difference > between direction and script because I thought script implies direction. Look in hb-common.h which is pulled in by hb.h. There are enums for hb_direction_t and hb_script_t. There is no enum for hb_language_t, but you can get one by using hb_language_from_string(). A run needs to have a separate direction from its script because, in the case of bidi scripts like Arabic, a particular sequence of letters may be in the opposite order to the default direction of the script (arab). Harfbuzz expects each run to be in a single direction. So a sequence of arabic digits in an arabic text: ARABIC1234ARABIC, would get passed to harfbuzz as 3 runs "ARABIC" (rtl), "1234" (ltr), "ARABIC" (rtl). A bidi processor, say from icu, will do the maths for you here and work out the runs and their directions. HTH, Yours, Martin _______________________________________________ HarfBuzz mailing list HarfBuzz@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/harfbuzz
