How can I tell Vim to show ANSI escape codes properly?

I'm trying to view and edit a file in Vim, but this file has ANSI escape codes:

^[[1m[0.05s elapsed, 00:00:13 total]^[[0m

How can I tell Vim to interpret them properly instead of just showing the raw code?

Answer

It sounds like you want to display ANSI colors and conceal their escape characters. You can do this with Charles Campbell's "AnsiEsc" plugin.

Note that you will need Vim version 7.3 or newer. (Older versions of Vim could be patched, but that's more work for an outdated version of Vim.)