Source this in your .vimrc

coffee_clean.vim

function! CoffeeClean()
    let save_cursor = getpos(".")

    "general puncuation spacing cleanup
    "
    "Missing spaces
    silent! %s/\v','/', '/g
    silent! %s/\v","/", "/g
    silent! %s/\v:(\w)(['"].*)@<!/: \1/g
    silent! %s/\v:\@(['"].*)@<!/: @/g

    "ensure space after =
    silent! %s/\v\=(\S)/= \1/g

    "Extra spaces
    silent! %s/\v\s+\=\s+/ = /g
    silent! %s/\v(\w)\s+,/\1,/g

    "use single quotes for 'normal' strings, leave double quotes for
    "interpolated strings
    " silent! %s/"\([^#"']\+\)"/'\1'/g
    silent! %s/""/''/g

    "remove extra spaces around braces
    silent! %s/ ]/]/g
    silent! %s/\[ /[/g
    silent! %s/( /(/g
    silent! %s/\v(\S)\s+\)/\1)/g
    silent! %s/\(\w\) )/\1)/g

    "lambdas
    "
    "always remove a space before the rocket
    silent! %s/) ->/)->/g
    silent! %s/) =>/)=>/g

    "cleanup lambdas as contained in parens. ensure a space to make it stand
    "out
    silent! %s/\v\(\((\w+)\)-\>/( (\1)->/g
    silent! %s/\v\(\((\w+)\)=\>/( (\1)=>/g

    "a parameterless lambda should always have a space in front
    silent! %s/\v:-\>/: ->/g
    silent! %s/\v:\=\>/: =>/g

    "simple cleanups for common stuff
    silent! %s/'use strict';/'use strict'/g
    silent! %s/@$/this/

    call setpos('.', save_cursor)
endfunction

autocmd BufWritePre *.coffee call CoffeeClean()

We should note the intent of each of these in some comments.
Are we sure that line 8 is working?

Yeah, I'm hacking on it right now. have time to play with it with me?

…

On Feb 20, 2012, at 7:33 PM, JamesMaroney wrote: We should note the intent of each of these in some comments. Are we sure that line 8 is working? --- Reply to this email directly or view it on GitHub: https://gist.github.com/1872435

In a bit. Starting bedtime routine now. On Feb 20, 2012 7:34 PM, "Brendan Erwin" < [email protected]> wrote:

…

Yeah, I'm hacking on it right now. have time to play with it with me? On Feb 20, 2012, at 7:33 PM, JamesMaroney wrote: > We should note the intent of each of these in some comments. > Are we sure that line 8 is working? > --- > > Reply to this email directly or view it on GitHub: > https://gist.github.com/1872435 --- Reply to this email directly or view it on GitHub: https://gist.github.com/1872435

:) here too

…

On Feb 20, 2012, at 7:36 PM, JamesMaroney wrote: In a bit. Starting bedtime routine now. On Feb 20, 2012 7:34 PM, "Brendan Erwin" < ***@***.***> wrote: > Yeah, I'm hacking on it right now. > > have time to play with it with me? > > On Feb 20, 2012, at 7:33 PM, JamesMaroney wrote: > > > We should note the intent of each of these in some comments. > > Are we sure that line 8 is working? > > --- > > > > Reply to this email directly or view it on GitHub: > > https://gist.github.com/1872435 > --- > > Reply to this email directly or view it on GitHub: > https://gist.github.com/1872435 --- Reply to this email directly or view it on GitHub: https://gist.github.com/1872435

ok, I'm back at the computer now.