Semantic.gs with omega support except not on row... can't figure it out.

semantic.styl

/////////////////
// Semantic.gs // for Stylus: http://learnboost.github.com/stylus/
/////////////////

// Defaults which you can freely override
column-width = 60px
gutter-width = 20px
columns = 12

// Utility function
gridsystem-width(_columns = columns)
  _columns * (column-width + gutter-width) 

// Set @total-width to 100% for a fluid layout
//total-width = 100%

_total-width(_columns = columns)
  if total-width is defined
    total-width
  else
    unit(gridsystem-width(_columns), px)

// Correcting percentage-to-pixel rounding errors in IE6 & 7
// See http://tylertate.com/blog/2012/01/05/subpixel-rounding.html
// Override @min with the minimum width of your layout
min-width = 960
correction = (((0.5 / min-width) * 100) * 1%)

// The micro clearfix http://nicolasgallagher.com/micro-clearfix-hack/
clearfix()
  *zoom:1

  &:before,
  &:after
    content:""
    display:table

  &:after
    clear:both

//////////
// GRID //
//////////

body
  width 100%
  clearfix()

row(_columns = columns)
  display block
  width _total-width(_columns) * ((gutter-width + gridsystem-width(_columns) ) / gridsystem-width(_columns))
  margin 0 _total-width(_columns) * (((gutter-width * 0.5) / gridsystem-width(_columns) ) * - 1)
  *width (_total-width(_columns) * ((gutter-width + gridsystem-width(_columns) ) / gridsystem-width(_columns))) - correction
  *margin 0 _total-width(_columns) * (((gutter-width * 0.5) / gridsystem-width(_columns) ) * - 1) - correction
  clearfix()

column(size, omega = false,  _columns = columns) {
  display inline-block
  float left
  if omega is true {
    width _total-width(_columns) * ((((gutter-width + column-width ) * size)) / gridsystem-width(_columns))
    *width (_total-width(_columns) * ((((gutter-width + column-width ) * size)) / gridsystem-width(_columns)) - correction)
  } else {
    width _total-width(_columns) * ((((gutter-width + column-width ) * size) - gutter-width) / gridsystem-width(_columns))
    margin 0 _total-width(_columns) * ((gutter-width * 0.5) / gridsystem-width(_columns))
    *width _total-width(_columns) * ((((gutter-width + column-width ) * size) - gutter-width) / gridsystem-width(_columns)) - correction
    *margin 0 _total-width(_columns) * ((gutter-width * 0.5) / gridsystem-width(_columns)) - correction
  }
}

push(offset = 1, omega = false, _columns = columns, _gutter = gutter-width, _column = column-width)
  if omega is true
    margin-left (_total-width(_columns)*((_gutter+_column)*offset)/gridsystem-width(_columns))
  else
    margin-left _total-width(_columns)*(((_gutter+_column)*offset + (_gutter*0.5))/gridsystem-width(_columns))

pull(offset = 1, omega = false, _columns = columns, _gutter = gutter-width, _column = column-width)
  if omega is true
    margin-right (_total-width(_columns)*((_gutter+_column)*offset)/gridsystem-width(_columns))
  else
    margin-right _total-width(_columns)*(((_gutter+_column)*offset + (_gutter*0.5))/gridsystem-width(_columns))