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POHow can I capture the `M-0 <f4>` event and write it to a buffer in that format in Emacs?
 

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  1. POHow can I capture the `M-0 <f4>` event and write it to a buffer in that format in Emacs?
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    <p>I'm working on capturing formatted keystrokes to a buffer related to a <a href="http://vimgolf.com/" rel="nofollow">VimGolf</a> <a href="https://github.com/timvisher/vimgolf/blob/keystrokes-parse/emacs/vimgolf.el" rel="nofollow">minor mode</a> that I've been working on for a few days now.</p> <p>I have the <a href="https://github.com/timvisher/vimgolf/blob/keystrokes-parse/emacs/vimgolf.el#L116" rel="nofollow">capture function</a> almost exactly where I want it except that it cannot seem to capture the <code>kmacro-end-or-call-macro</code> command triggered by <code>&lt;f4&gt;</code> or the <code>calc-dispatch</code> command triggered by <code>C-x *</code>. I'm not sure what else is potentially missing as my testing has only exposed these anomalies.</p> <p>In case you don't want to <a href="https://github.com/timvisher/vimgolf/blob/keystrokes-parse/emacs/vimgolf.el#L116" rel="nofollow">click over to github</a>, here's the function as it stands now:</p> <pre> (defun vimgolf-capture-keystroke () (with-current-buffer (get-buffer-create vimgolf-keystrokes-buffer-name) (end-of-buffer) (if (not (or executing-kbd-macro prefix-arg)) (progn (insert (key-description (this-command-keys))) (insert " "))))) (defun vimgolf-capture-keystrokes () (add-hook 'post-command-hook 'vimgolf-capture-keystroke)) (defun vimgolf-stop-capture-keystrokes () (remove-hook 'post-command-hook 'vimgolf-capture-keystroke)) </pre> <p>The only connection I can see between the two problem functions that I know about is that they both recurse into executing other commands prior to finishing the command that they actually execute.</p> <p>I can capture the beginning of the commands but not the end by transforming the capture functions above into:</p> <pre> (defun vimgolf-capture-keystrokes () (add-hook 'pre-command-hook 'vimgolf-capture-keystroke)) (defun vimgolf-stop-capture-keystrokes () (remove-hook 'pre-command-hook 'vimgolf-capture-keystroke)) </pre> <p>Even when I turn off <code>executing-kbd-macro</code> from the restriction on appending to the buffer, it still does not capture that event. I tried to examine the actual vector that comes down from the post-command-hook and in all cases it's exactly what I would expect but for <code>&lt;f4&gt;</code> it renders an empty vector.</p> <p>So how do I get those keys into my capture buffer?</p> <hr> <p>For convenience, I've been testing this using Challenge ID <code>4d2fb20e63b08b08b0000075</code>.</p> <p>The exact keys I press are <code>&lt;f3&gt; C-e M-4 M-b M-d C-b M-2 &lt;C-S-backspace&gt; M-2 C-y C-f &lt;f4&gt; M-0 &lt;f4&gt; C-o M-&lt; C-x * : M-1 v r C-u y</code></p> <p>The way those keys come into my capture buffer with the function as it stands right now is <code>&lt;f3&gt; C-e M-4 M-b M-d C-b M-2 &lt;C-S-backspace&gt; M-2 C-y C-f &lt;f4&gt; C-o M-&lt; : M-1 v r C-u y</code></p>
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