Marks without anchor points overlap other glyphs

[dscorbett]

Font

NotoSansGujarati-Regular.otf

Where the font came from, and when

Site: https://github.com/notofonts/gujarati/releases/tag/NotoSansGujarati-v2.104
Date: 2023-04-06

Font version

Version 2.104

Issue

The marks U+0951, U+0952, U+0AE2, U+0AE3, U+0AFB, U+0AFD, U+0AFE, and U+0AFF overlap other glyphs in the same cluster. It might help if they had anchor points.

Character data

એ॑રૂ॒ણૢણૣખૻીખ૽ીસ૾ીઝ૿ી
U+0A8F GUJARATI LETTER E
U+0951 DEVANAGARI STRESS SIGN UDATTA
U+0AB0 GUJARATI LETTER RA
U+0AC2 GUJARATI VOWEL SIGN UU
U+0952 DEVANAGARI STRESS SIGN ANUDATTA
U+0AA3 GUJARATI LETTER NNA
U+0AE2 GUJARATI VOWEL SIGN VOCALIC L
U+0AA3 GUJARATI LETTER NNA
U+0AE3 GUJARATI VOWEL SIGN VOCALIC LL
U+0A96 GUJARATI LETTER KHA
U+0AFB GUJARATI SIGN SHADDA
U+0AC0 GUJARATI VOWEL SIGN II
U+0A96 GUJARATI LETTER KHA
U+0AFD GUJARATI SIGN THREE-DOT NUKTA ABOVE
U+0AC0 GUJARATI VOWEL SIGN II
U+0AB8 GUJARATI LETTER SA
U+0AFE GUJARATI SIGN CIRCLE NUKTA ABOVE
U+0AC0 GUJARATI VOWEL SIGN II
U+0A9D GUJARATI LETTER JHA
U+0AFF GUJARATI SIGN TWO-CIRCLE NUKTA ABOVE
U+0AC0 GUJARATI VOWEL SIGN II

Screenshot

[simoncozens]

This is a good point; unfortunately few of the bases in this font have useful anchors, so adding anchors to the marks isn't enough. We'd have to do everything. I'm not against doing everything in the context of re-engineering the font and reducing the glyphset (do we really need all those nukta glyphs?), but that's a bigger job.