Editplus replace lowercase case with uppercase

The following works in Edit Plus 3.70.

Enter or check the following in the replace dialog.

• Find what: (\w+)_([[:lower:]]{1})(\w*)
• Replace with: \1\U\2\E\3
• Case sensitive: unchecked
• Regular expression: checked
• Support \U \L \E: checked

This works fine for the example given.

If you have a variable such as has_three_words then running the replace twice will convert the variable to hasThreeWords.