Replace all upper case chars to lower case chars with a RegEx
It requires BRU version 3.4.0.0 or newer. It can only be done with version 2 regular expressions - tick v2 option in RegEx (1).
Match
(\w)/g
Replace
\L\1
The \w metacharacter is used to find a word character.
/g is the modifier used to perform a global match (find all matches rather than stopping after the first match). Tip: To perform a global, case-insensitive search, use this modifier together with the "i" modifier, e.g. /gi. /g and /i are only supported in version 2 regular expressions (v2).
\L means lowercase
\1 is the matched character.