Re: Fallback for Sinhala Consonant Clusters

2018-10-16 Thread Richard Wordingham via Unicode
On Tue, 16 Oct 2018 22:00:18 +1100 Harshula via Unicode wrote: > When a font is missing a glyph during an *explicit* conjunct lookup, > it appears the most accurate solution is to display the missing glyph > symbol. However, I don't believe that that is the most useful solution, and it

Re: Fallback for Sinhala Consonant Clusters

2018-10-16 Thread Harshula via Unicode
Hi Richard, On 16/10/18 2:29 pm, Richard Wordingham via Unicode wrote: > On Tue, 16 Oct 2018 11:59:54 +1100 > Harshula via Unicode wrote: > >> Hi Richard, >> >> On 16/10/18 6:57 am, Richard Wordingham via Unicode wrote: >>> On Tue, 16 Oct 2018 02:47:36 +1100 >>> Harshula via Unicode wrote: >>>

Re: Fallback for Sinhala Consonant Clusters

2018-10-15 Thread Richard Wordingham via Unicode
On Tue, 16 Oct 2018 11:59:54 +1100 Harshula via Unicode wrote: > Hi Richard, > > On 16/10/18 6:57 am, Richard Wordingham via Unicode wrote: > > On Tue, 16 Oct 2018 02:47:36 +1100 > > Harshula via Unicode wrote: > > > >> Note, touching letters are formed by , so they > >> should not be

Re: Fallback for Sinhala Consonant Clusters

2018-10-15 Thread Harshula via Unicode
Hi Richard, On 16/10/18 6:57 am, Richard Wordingham via Unicode wrote: > On Tue, 16 Oct 2018 02:47:36 +1100 > Harshula via Unicode wrote: > >> Note, touching letters are formed by , so they should >> not be displayed as a fallback for conjuncts. > > I don't follow that. While the conjuncts

Re: Fallback for Sinhala Consonant Clusters

2018-10-15 Thread Richard Wordingham via Unicode
On Tue, 16 Oct 2018 02:47:36 +1100 Harshula via Unicode wrote: > Note, touching letters are formed by , so they should > not be displayed as a fallback for conjuncts. I don't follow that. While the conjuncts with r-, -r and -y are very different to pairs of touching letters, the conjuncts for

Re: Fallback for Sinhala Consonant Clusters

2018-10-15 Thread Harshula via Unicode
Hi Richard, On 15/10/18 6:53 pm, Richard Wordingham via Unicode wrote: > On Mon, 15 Oct 2018 01:55:24 +1100 > Harshula via Unicode wrote: > >> 3) However, what you have observed is an issue with *explicit* >> conjunct creation. After the segmentation is completed, the >> layout/shaping engine

Re: Fallback for Sinhala Consonant Clusters

2018-10-15 Thread Richard Wordingham via Unicode
On Mon, 15 Oct 2018 01:55:24 +1100 Harshula via Unicode wrote: > 3) However, what you have observed is an issue with *explicit* > conjunct creation. After the segmentation is completed, the > layout/shaping engine needs to first check if there is a > corresponding lookup for the explicit

Re: Fallback for Sinhala Consonant Clusters

2018-10-14 Thread Harshula via Unicode
Sinhala consonant clusters? There are > fallback rules for Devanagari, but I'm not sure if they read across. > > The problem I am seeing is that the Pali syllable 'ndhe' න්‍ධෙ NAYANNA, U+0DCA AL-LAKUNA, 200D ZWJ, U+0DB0 MAHAPRAANA DAYANNA, U+0DD9 > KOMBUVA> is being rendered identic

Re: Fallback for Sinhala Consonant Clusters

2018-10-14 Thread Richard Wordingham via Unicode
On Sun, 14 Oct 2018 17:15:26 +0900 "Martin J. Dürst via Unicode" wrote: > Hello Richard, > > On 2018/10/14 09:02, Richard Wordingham via Unicode wrote: > > Are there fallback rules for Sinhala consonant clusters? There are > > fallback rules for Devanagari, but I

Re: Fallback for Sinhala Consonant Clusters

2018-10-14 Thread Martin J. Dürst via Unicode
Hello Richard, On 2018/10/14 09:02, Richard Wordingham via Unicode wrote: Are there fallback rules for Sinhala consonant clusters? There are fallback rules for Devanagari, but I'm not sure if they read across. The problem I am seeing is that the Pali syllable 'ndhe' න්‍ධෙ Let's label

Fallback for Sinhala Consonant Clusters

2018-10-13 Thread Richard Wordingham via Unicode
Are there fallback rules for Sinhala consonant clusters? There are fallback rules for Devanagari, but I'm not sure if they read across. The problem I am seeing is that the Pali syllable 'ndhe' න්‍ධෙ is being rendered identically to a hypothetical Sinhalese 'nēdha' නේධ , which in NFD is , when