mkgmap style string match exclusion

In the style files for Mkgmap how do i add an exclusion based on a partial string match,

I know if i want to find tags with "Lane" in them it is

name ~ '.*[Ll]ane'

but how do i find a match for names that do not have Lane in them

I have tried

name !~ '.*[Ll]ane'

and

name != ~'.*[Ll]ane'

but they crash the compiler.