Sublime Home/End Fix OS X

keymap.sublime-keymap

[{
    "keys": ["ctrl+a"],
    "command": "move_cursor_beginning"
}, {
    "keys": ["shift+ctrl+a"],
    "command": "select_to_beginning"
}]

plugin.py

import sublime, sublime_plugin, re

class move_cursor_beginning(sublime_plugin.TextCommand):
	def run(self, edit):
		sel = self.view.sel()
		current_line_pos = self.view.line(sel[0].begin())
		current_line_text = self.view.substr(current_line_pos)
		num_whitespace = re.search(r'^(\s+)', current_line_text)
		if num_whitespace is None:
			return
		target = current_line_pos.begin() + len(num_whitespace.group(0))
		self.view.sel().clear()
		self.view.sel().add(sublime.Region(target,target))

class select_to_beginning(sublime_plugin.TextCommand):
	def run(self, edit):
		sel = self.view.sel()
		end_pos = sel[0].end()
		current_line_pos = self.view.line(sel[0].begin())
		current_line_text = self.view.substr(current_line_pos)
		num_whitespace = re.search(r'^(\s+)', current_line_text)
		if num_whitespace is None:
			return
		target = current_line_pos.begin() + len(num_whitespace.group(0))
		self.view.sel().clear()
		self.view.sel().add(sublime.Region(target,end_pos))