I created test cases for Unicode BMP characters from TestCases.txt. The following Unicode case insensitive cases don't seem to work. (Strings in the following test cases are in the FULLWIDTH forms of the same ones as in TestCases.txt.)

// Case insensitivity
(?u)\uFF46\uFF4F\uFF4F\uFF42\uFF41\uFF52
\uFF46\uFF2F\uFF4F\uFF42\uFF21\uFF52
true \uFF46\uFF2F\uFF4F\uFF42\uFF21\uFF52 0

\uFF46(?u)\uFF4F\uFF4F\uFF42\uFF41\uFF52
\uFF46\uFF2F\uFF4F\uFF42\uFF21\uFF52
true \uFF46\uFF2F\uFF4F\uFF42\uFF21\uFF52 0

\uFF46\uFF4F\uFF4F(?u)\uFF42\uFF41\uFF52
\uFF46\uFF2F\uFF4F\uFF42\uFF21\uFF52
false 0

(?u)\uFF46\uFF4F\uFF4F[\uFF42\uFF41\uFF52]+
\uFF46\uFF4F\uFF2F\uFF42\uFF21\uFF52
true \uFF46\uFF4F\uFF2F\uFF42\uFF21\uFF52 0

(?u)\uFF46\uFF4F\uFF4F[\uFF41-\uFF52]+
\uFF46\uFF4F\uFF2F\uFF42\uFF21\uFF52
true \uFF46\uFF4F\uFF2F\uFF42\uFF21\uFF52 0

###@###.### 2003-08-18