Code review comment for lp:~gang65/ubuntu-calculator-app/ubuntu-calculator-app-comma-without-number

Please create new bug report regarding automatically adding "*" to formula.

With type '23,4': We could only parse/validate/modify formula before cursor, and in my opinion we shouldn't modify after. What if you would like to change something more in formula?
I would like to have full control of what I'm typing, and help user only when I'm 100% sure what is his intention.