Flipwords

The plugin Flipwords provides the command Flip that changes the order of two delimited words on a single line.

Examples

Flip         - flip two white-space delimited words
Flip ,       - flip two items in a comma-delimited list 
Flip , )     - flip last two parameters (nested parens are not handled)
Flip = ;     - flip two words delimited by '=' and ';' (c assignment)
Flip = )\zs  - flip two words delimited by '=' where the second word
               ends with and includes ')'

Some effects of the Flip command (the coursor is at the character following '|'):

~~ let |b = a
:Flip =
~~ let |a = b

~~ call doThis(|"one", "two", "three")
:Flip ,
~~ call doThis(|"two", "one", "three")

~~ call doThis("one", |"two", "three")
:Flip ,
~~ call doThis("one", |"three"), "two"

~~ call doThis("one", |"two", "three")
:Flip , )
~~ call doThis("one", |"three", "two")

~~ if |result == getValue() " some comment
:Flip == )\zs
~~ if |getValue() == result " some comment