How to reorganize code without IDE functionality (in Vim or TextMate)?

Question

I wonder how programmer refactoring code is written in languages ​​such as Ruby, Python?

Assuming you get the code after the "previous" guy, so you cannot be sure of the quality of the tests and their scope.

Are you using any specific approach?

Answer 1

IDE , . , , , . , , , , . , .

Answer 2

Python RopeVim.

Answer 3

vim :

/spock

spock, n, .

:

:%s/spock/kirk/g

spock . Vim ,, find/sed/grep .

!