How to increment strings in Vim

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I can increment integers in Vim using <Ctrl>-a. The docs seem to say that if I set nrformats to "octal,hex,alpha" (which I am trying to do with :set nrformats="octal,hex,alpha") then <Ctrl>-a will increment a to b, 007 to 010, and 0x09 to 0x0f, but those examples are not working for me (I just a get a beep for a, 007 turns into 008, and 0x09 turns into 0x10).

Best Answer

The quotes were the problem, I should have typed :set nrformats=octal,hex,alpha or :se nf=octal,hex,alpha.