Map Caps Lock to change keyboard layout in Mac OS X

Question

I found System Preferences → Keyboard → Modifier Keys menu, but I can map other modifier key to it, not a keyboard shortcut.

Answer 1

My guide on how to do that:

http://dae.cyberic.eu/blog/select-input-language-by-caps-lock-in-mac-os-x/

Answer 2

Unfortunately, what you want to accomplish cannot be done with what OS X gives you. I have hacked a keyboard layout to switch to Cyrillic when Caps Lock is on, but it's a bit ugly - everything happens within the same actual keyboard layout (flag in menu bar does not change), and some apps behave funny with it (most shortcuts do not work in Mozilla-based software, for example). Ukelele is your friend here, as Felix pointed out, but I would love to find a true solution to have Caps Lock switch the actual layouts.

Answer 3

Well it does not really make sense to make a keyboard short to function as a modifier key, does it? (Modifier keys are part of keyboard shortcuts).

To create a different keyboard layout, you can use Ukulele.