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    <p>I don't have a complete solution, but I have some possible approaches you can try, if you haven't looked at them yet.</p> <p>MATLAB's keyboard shorcuts are saved in an <code>XML</code> file in <code>/Users/$user/.matlab/$version/$name_keybindings.xml</code>, where <code>$user</code> is your user name, <code>$version</code> the version of MATLAB and <code>$name</code> is whatever you've saved the keybindings as. It looks something like this</p> <pre><code>&lt;?xml version="1.0" encoding="utf-8"?&gt; &lt;CustomKeySet derivedfrom="Mac" modifieddefault="false"&gt; &lt;Context id="Global"&gt; &lt;Action id="eval-file"&gt; &lt;Stroke alt="on" code="VK_ENTER" meta="on" sysctrl="on"/&gt; &lt;/Action&gt; &lt;stuff here /stuff&gt; &lt;/Context&gt; &lt;/CustomKeySet&gt; </code></pre> <p>I tried changing the <code>derivedfrom</code> value to <code>EmptyBaseSet</code> to see what happens. As expected, none of the shortcuts work, but <code>Opt</code>-<code>character</code> still reproduced a unicode character. This seems indicates that the <code>Opt-f</code> or any option based shortcut behaviour is due to Mac, and out of MATLAB's hands. It's the Windows equivalent of pressing <code>Alt</code>+numpad keys for unicode characters. If MATLAB knew about the option shortcuts, it would indicate a possible conflict in <code>MATLAB&gt;Preferences&gt;Keyboard&gt;Shortcuts</code>, but it doesn't. I don't know enough <code>XML</code> to tell you whether or not you can disable <code>Opt-f</code>=<code>ƒ</code> by editing this file.</p> <p>My guess is that there is a very high probability that Apple has ensured that applications don't get to tinker very much with this feature, as several non-English (German/Slavic/Latin) languages use these keyboard shortcuts very often.</p> <p>An alternate option is to try <a href="http://scripts.sil.org/cms/scripts/page.php?site_id=nrsi&amp;id=ukelele" rel="nofollow noreferrer">Ukelele</a>, which is a keyboard layout editor for macs. There have been questions on S.O. and related sites, where they've used Ukelele to <a href="https://stackoverflow.com/questions/455799/how-can-i-eliminate-dead-keys-on-mac-os-x-with-international-keyboard">remap dead keys</a>,<a href="https://apple.stackexchange.com/questions/10761/how-to-disable-composite-keys-on-mac-os-x">another example for dead keys</a>, <a href="https://stackoverflow.com/questions/3250686/configure-the-left-and-right-mac-command-keys-differently">configure the left &amp; right <code>Cmd</code> differently</a>, <a href="https://apple.stackexchange.com/questions/8787/swap-key-permanently">swapping € and $</a>, etc. You can try redefining your keyboard layout to disable <code>Opt-f</code> (unless if you need that particular character outside of MATLAB), which should solve the problem.</p> <p>Lastly, I don't mean to be saying "you should be doing something else" when the question is "how do I do this?", but in general, with macs, I've found mapping <code>Ctrl</code> to the windows/emacs <code>Alt</code> shortcuts to be easier than <code>Opt</code>. Mostly, for the very same reasons, and also because <code>Opt</code> is so damn close to the <code>Cmd</code> key on my laptop that my fat fingers end up pressing <code>Cmd</code> when I don't mean to (it never happens the other way around).</p>
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    1. POEnabling option-key shortcuts in MATLAB for Mac
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    1. COThanks for the input, R.M. As far as I can see, the keymap that needs to be overridden is Swing's (through the Apple LAF, perhaps?). I think. But I'm not a Java/Swing coder. In Cocoa, however, Apple does allow this behavior to be very dynamic — which is exactly the root of this problem. I've enabled emacs-style keybindings in *all* Cocoa apps with [Cocoa Keybindings](http://www.hcs.harvard.edu/~jrus/site/cocoa-text.html). Matlab is the odd man out. Thus, unfortunately, your final two points aren't going to solve this for me. Thanks again for your time.
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    2. COAh, crud. I had initially dismissed your answer of changing OS X's keyboard layout due to the reasons I cited in my first comment. Despite that, I gave it a shot and *thought* it worked. It does indeed stop MATLAB from printing the unwanted characters. However, it also unbinds my move-word-forward macro in ALL OS X programs. I thought that this was the solution for a brief moment due to a caching issue. Enjoy the +500! `:)` But I'm still in search of an answer. `:(`
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    3. CO@Matt: Thanks :D!! It's still an interesting problem, and I think combining the two suggestions I gave might work. I suggest creating a layout without `Opt-f`, but don't set it as the default yet. Instead try tweaking MATLAB's `XML` files to import the base layout from this new layout. I don't know how exactly to do it, but looking at the sample file contents I posted, it does derive its settings from somewhere. Do let me know if it worked.
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