The regular expression syntax that Data Governance and Catalog uses natively supports Unicode characters.
Note the following about using Unicode characters:
•Not all Unicode characters are printable.
•In character ranges, Data Governance and Catalog interprets the endpoints as points in the Unicode character table. Data Governance and Catalog forms a continuous range of all the characters between the endpoints. For example, the expression [A-z] includes the characters: [\]^_` as well as all upper- and lower-case letters.
•In character ranges, if you use an endpoint that comes before the start point in a Unicode table, the expression will produce no values.