2013/4/18 Dohyun Kim <[email protected]>: > 2013/4/18 Behdad Esfahbod <[email protected]>: >> When are the OpenType features applied, after all those processes are done? > > If possible, please apply "ccmp" feature before all those processes.
On a second thought, now I think it is more efficient and compliant to the unicode standard to apply "ccmp" feature after decomposition of hangul syllables and before setting syllable boundaries. > And "*jmo" features after all those processes. > >> Are the '*jmo' features applied to all glyphs? > > No. Only to those well-formed syllable block <M? L V T?>. > >> >> On 13-04-16 11:29 PM, Dohyun Kim wrote: >>> http://ktug.org/~nomos/harfbuzz-hangul/hangulshaper.pdf >>> >>> Regards, >>> >>> 2013/4/17 Behdad Esfahbod <[email protected]>: >>>> Ok, given how confusing this thread has become, please create a Google Doc, >>>> and write down what you think the HarfBuzz Hangul shaper should do. >>>> Modify it >>>> as much as you want, but keep it as short as possible. Please make the doc >>>> commentable by the public, and send the link here. >>>> >>>> Thanks, >>>> behdad >>>> >>>> On 13-04-16 10:10 AM, Dohyun Kim wrote: >>>>> 2013/4/16 Dohyun Kim <[email protected]>: >>>>>> 2013/4/15 Dohyun Kim <[email protected]>: >>>>>>> >>>>>>> The behavior of new Uniscribe is quote confusing and seems to be >>>>>>> inconsistant on some points. I cannot describe concisely what it >>>>>>> does. But it is evident that it renders correctly only those input >>>>>>> sequence which is compliant to KS X 1026-1. >>>>>>> >>>>>> >>>>>> OK. My guess about the behavior of new Uniscribe: >>>>>> >>>>>> 1. demarcate syllable blocks according to KS X 1026-1 >>>>>> >>>>>> - between L and L, V and V, T and T, or L and T (these are illegal >>>>>> string) >>>>>> - between V and L, T and L, or M and L (these are legal break point) >>>>>> - between Jamo and non-Jamo character including Hangul syllables >>>>>> - but not between L and V, V and T, T and M, V and M, LVT and M, LV >>>>>> and M. >>>>> >>>>> Oh, I have left out one stunning thing. I really dislike this sort of >>>>> behavior: >>>>> >>>>> - The Jamo sequence of <L V T> is divided into <L | V | T>, if >>>>> equivalent <LVT> syllable exists. >>>>> - Likewise, <L V> sequence is divided into <L | V>, if it is not >>>>> followed by T and equivalent <LV> syllable exists. >>>>> >>>>>> >>>>>> where LVT and LV are Hangul syllables; L, V, and T are Jamos; M means >>>>>> Hangul tone marks (U+302E or U+302F) >>>>>> >>>>>> 2. reorder Hangul tone marks >>>>>> >>>>>> - if syllable block is well-formed, move M from the last to the >>>>>> first of the cluster. >>>>>> - if syllable is not well-formed, Uniscribe does not move M. >>>>>> Instead, U+25CC is inserted after M. >>>>>> >>>>>> where "well-formed" means <LVT>, <LV>, <L V T>, or <L V>. >>>>>> >>>>> >>>>> -- >>>>> Dohyun Kim >>>>> College of Law, Dongguk University >>>>> Seoul, Republic of Korea >>>>> >>>> >>>> -- >>>> behdad >>>> http://behdad.org/ >>> >>> >>> >> >> -- >> behdad >> http://behdad.org/ > > > > -- > Dohyun Kim > College of Law, Dongguk University > Seoul, Republic of Korea -- Dohyun Kim College of Law, Dongguk University Seoul, Republic of Korea _______________________________________________ HarfBuzz mailing list [email protected] http://lists.freedesktop.org/mailman/listinfo/harfbuzz
