vim regex for converting from js prop syntax to Immutable.js syntax

regex.vim

# converting
# lines[1][2] = 'asd'
# to
# .setIn([1,2], 'asd')

# mark the lines with V, then type :
# the following will appear:
# :'<,'>

# continue with

# s/\varname\[\(\d\+\)\]\[\(\d\+\)\]\s=\s'\(.*\)'/.setIn([\1, \2, '\3')/g

#so you  get

:'<,'>s/\varname\[\(\d\+\)\]\[\(\d\+\)\]\s=\s'\(.*\)'/.setIn([\1, \2, '\3')/g