Module:Unicode_data/scripts/doc
Conflicts between character sets of different scripts
This module includes fewer scripts than Module:scripts/data, because some scripts do not have characters at all, and some scripts' character sets are in conflict with each other. Here are the ways conflicts have been resolved.
Scripts are omitted if they have the same characters as another more basic script, or they consist of two or more other scripts. For example, fa-Arab is omitted because it contains the same characters as Arab, and Jpan is omitted because it consists of Hani, Hira and Kana.
If a script consists of the characters of another script, plus some unique characters, only the unique characters are counted as belonging to the script. For instance, polytonic consists of the characters of Grek, which are used in the monotonic orthography of Modern Greek, plus characters used for Ancient Greek; only the Ancient Greek characters are counted as polytonic in this module. It is the same with Cyrs and Cyrl, Latinx and Latn.