A vim plugin providing a single text object (on iv and av) for variable segments. A variable segment is defined to be a substring in any identifier character followed by an underscore ("snake case") or a lowercase identifier character followed by an uppercase character ("camel case").

E.g.:

foo_ba|r_baz -> civquux -> foo_quux_baz QU|UX_SPAM -> civLOTS_OF -> LOTS_OF_SPAM eggsAn|dCheese -> civOr -> eggsOrCheese _privat|e_thing -> civone -> _one_thing foo_ba|r_baz -> dav -> foo_baz QU|UX_SPAM -> dav -> SPAM eggsAn|dCheese -> dav -> eggsCheese _privat|e_thing -> dav -> _thing 

It will also preserve case for small camels when initial segments are deleted (with av):

_g|etJiggyYo -> dav -> _jiggyYo 

Requires vim-textobj-user.