pub fn group_c(eff_highest: u8, comp: u8) -> u8
Group C lexical code from (effective highest tier, current tier): 1=*** 2=**. 3=*.. 4=... 5=** 6=*. 7=.. 8=* 9=. 0=none.
***
**.
*..
...
**
*.
..
*
.