title: Emacs caps lock minor mode?
body: <p>Is there a command in Emacs to turn on what might be described as "caps lock minor mode"?  I'm looking to do something like <code>M-x toggle-caps-mode</code>, then every letter I type in the buffer is a capital letter until I do <code>M-x toggle-caps-mode</code> again.</p>
  
  <p>Note:  I'm NOT looking for directions on how to swap caps and control.  In reality this is because I have already done that.  I am generally quite happy with it, but occasionally I'm editing code where there are a bunch of constants that are in all caps, and it gets to be a strain holding down the shift key.  I'm aware of the various <code>upcase</code> conversion functions; I'd rather not have to type the word, select it, then run <code>upcase-region</code>.</p>
  
  <p>If it matters, I'm using Aquamacs 2.2 w/ Emacs 23.3.1.</p>