Case preserving substitute in Vim

Question

Can this can be done in Vim?

What I mean is: searching for \'BadJob\' and replacing with \'GoodJob\' would do the following replacements

Answer 1

If you're only matching an exact (case-independent) string with a few possible capitalizations, another possibility is:

:s/abc/\={'abc':'xyz','Abc':'Xyz'}[submatch(0)]/i