I want to auto enter the insert mode after use f command how to make it?

[Zhe Lee]

As the title said I want to edit immediately after using f command.

seems cant remap the f direct, because f need a parameter. 

[Kyle Clark]

mm.. first thing that comes to mine is that you could put an operator mapping over the f command, via jumping to the `]  created from the operator mapping and start insert mode from there

this might be as simple as creating a omap?

some resources

 :h g@

or check out the section on Vimscript the hard way on the grep operator,