If Sh SH is a ligature (two glyphs combined), as it would be in Latin, then you don't need rare characters. So and Sy are easily represented with Basic EVA. If parsing is a concern, then a flag can be used, which is far more expedient than a list of rare characters.
We don't know if it's a ligature, that's still unknown, but if it is, then a chart full of rare characters is not needed to represent it when it combines with other characters.
In medieval scripts, using ligatures and abbreviations was normal and prevalent.
If it were Latin, it would actually be represented with three characters: the left side of the ligature, the right side of the ligature, and the macron.
Sh might not be a ligature, but on You are not allowed to view links. Register or Login to view. the two parts are disconnected in several places (I have posted examples on my blog), and there are a number of places throughout the manuscript where both c and S are combined with glyphs other than h. There are also places where the macron is association with other characters, like ii and qo. It is not just Sh that has a macron-like shape hovering over it.
We don't know if it's a ligature, that's still unknown, but if it is, then a chart full of rare characters is not needed to represent it when it combines with other characters.
In medieval scripts, using ligatures and abbreviations was normal and prevalent.
If it were Latin, it would actually be represented with three characters: the left side of the ligature, the right side of the ligature, and the macron.
Sh might not be a ligature, but on You are not allowed to view links. Register or Login to view. the two parts are disconnected in several places (I have posted examples on my blog), and there are a number of places throughout the manuscript where both c and S are combined with glyphs other than h. There are also places where the macron is association with other characters, like ii and qo. It is not just Sh that has a macron-like shape hovering over it.