isVedicSegmentalSign function
Vedic segmental signs with consonant-like pronunciation: ardhavisarga (U+1CF2/1CF3), jihvamuliya (U+1CF5, velar fricative) and upadhmāniya (U+1CF6, bilabial fricative). Unicode notes ardhavisarga is not limited to Vedic usage.
Implementation
bool isVedicSegmentalSign(int rune) =>
rune == 0x1CF2 || rune == 0x1CF3 || rune == 0x1CF5 || rune == 0x1CF6;