g and i are the default. There are no line breaks in filenames, so m is never needed.
You mean we need not type them in a Dopus buttons Standard code?
No. Opus' Rename command and JScript's replace method use different flavors of regex. Consult the docs for details.
can you give me the docs page links about this.
I read this page Regular Expression Syntax but can't find anything about global flag. there is a example with
# This can repeated the operation multiple times. so is that the only way? or anything I missing?
The rename command is always global, I don't see an option to make it non-global. Using i is like not using
# is very different from g, as you can tell from your screenshot. If you can't, keep reading it until you can.