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notofonts / bengali

Noto Bengali
SIL Open Font License 1.1
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TA(U+09A4)+TA+RA "TTRA" in NotoSansBengali does not appear correctly #21

Closed KazunariTsuboi closed 1 year ago

KazunariTsuboi commented 1 year ago

Font

NotoSansBengali-* All NotoSans Bengali fonts

Where the font came from, and when

https://notofonts.github.io/bengali/ Date: 2023/2/22

Font Version

Version 2.003; ttfautohint (v1.8.4.7-5d5b)

OS name and version

Windows 11 Pro 10.0.22000 build 22000

Application name and version

Google Chrome 110.0.5481.100

Issue

Related to the already closed issue #6. Noto Sans Bengali does not appear correctly the TTRA character as a ligature. With recent updates the following strings now appear as: ত্ত্র U+09A4, TA U+09CD, VIRAMA U+09A4, TA U+09CD, VIRAMA U+09B0, RA image

Unfortunately this glyph is identical to the TTA + RA glyph. ট্র U+099F, TTA U+09CD, VIRAMA U+09B0, RA image

TTA(U+099F) and TA(U+09A4) represent different sounds. In other words, this update is not desirable. On the other hand, the Noto Serif fonts display the ligature correctly. image

simoncozens commented 1 year ago

I'm sorry, this was really confusing, but I think I understand it now. Version 1 of Noto Sans Bengali had the ta-ta-ra conjunct, but it has gone missing in version 2. The conjunct glyph just wasn't the font any more. I just added it.

$ shape master_ttf/NotoSansBengali-Regular.ttf 'ত্ত্র ট্র'
[tatarabeng=0+723|space=5+260|ttarabeng=6+675]

shape