In April 2002, Sameer Singh posted a message on emacs-devel where he demonstrated the use of harfbuzz numerals with the kaithi script
https://lists.gnu.org/archive/html/emacs-devel/2022-04/msg01297.html to yield this image: [1] https://lists.gnu.org/archive/html/emacs-devel/2022-04/png4ClBZc1zV4.png There the first glyph spans the remaining chacracters when composed. I tried to reproduce it and showed my work on this message https://lists.gnu.org/archive/html/emacs-devel/2022-05/msg00341.html but I only get [2] https://lists.gnu.org/archive/html/emacs-devel/2022-05/pngTFsflcCrfU.png The first character does not span the remaining digit characters. Can anyone tell me what I might be missing? 1. 2.txt has code points 0x110BC 0x0967 0x0966 0x096E 2. hb-view --font-file=$HOME/.fonts/NotoSansKaithi-Regular.ttf --text-file=2.txt > 2.png This produces the image in the above mentioned url [2] . I believe it should look like [1]. Similar tests for arabic numbers a text file arabic-num.txt with code points 0x0600 0x31 0x32 0x33 and a command hb-view --font-file=$HOME/.fonts/NotoSansArabic-Regular.ttf --text-file=arabic-num.txt --output-file=arabic-num.png produces a file where the first character does not span the remaining characters. I believe I used the same font-files as Sameer did: -rw-r--r-- 1 madhu users 260740 Mar 24 2020 NotoSansArabic-Regular.ttf -rw-r--r-- 1 madhu users 87260 Mar 24 2020 NotoSansKaithi-Regular.ttf ---Madhu
