Simple sublime text 2 multiple cursor alignment command

align_cursors.py

import sublime, sublime_plugin, re

class AlignCursors(sublime_plugin.TextCommand):
  def adjust_column_for_tabs(self, view, tab_size, region, rowcol):
    line_text = view.substr(view.line(region))[:rowcol[1]]
    return rowcol[1] + (line_text.count("\t") * (tab_size - 1))
  def run(self, edit):
    view = self.view
    regions = view.sel()
    right_most = 0
    cursors = 0
    tab_size = int(view.settings().get('tab_size', 8))
    lines = set()
    if len(regions) < 2:
      sublime.error_message("Error: Must have more than one cursor active")
    for region in regions:
      if not region.empty():
        sublime.error_message("Error: Must have no content selected")
        return
      rowcol = view.rowcol(region.begin())
      if rowcol[0] in lines:
        sublime.error_message("Error: Cannot have more than one cursor per line (line %i has more)" % (rowcol[0] + 1))
        return
      lines = lines | set([rowcol[0]])
      col = self.adjust_column_for_tabs(view, tab_size, region, rowcol)
      if col > right_most:
        right_most = col
    for region in regions:
      rowcol = view.rowcol(region.begin())
      col = self.adjust_column_for_tabs(view, tab_size, region, rowcol)
      if col < right_most:
        view.insert(edit, region.begin(), ''.join([' '] * (right_most - rowcol[1])))

default.sublime-keymap

[
  { "keys": ["ctrl+alt+]"], "command": "align_cursors" }
]