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POElisp - adding multiple insertions to buffer-undo-list (saving undo information)
 

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    <p><strong>Update: my original question was answered, but I'd like to know the more general approach - how can I define multiple operations which will be undone with a single C-/.</strong></p> <p>I'm trying to write a function which will automatically insert TODO comment into my code. I want this function to have an "undo option".</p> <p>I figured out how to add a mark to buffer-undo-list:</p> <pre><code>(setq buffer-undo-list (cons (point) buffer-undo-list)) </code></pre> <p>This allows me to return the point to the position from which this function was executed (if I decide to undo).</p> <p>My question is: how can I add multiple insertions to buffer-undo-list? What I mean is that there are multiple (insert str) statements in my function, but I want to undo all of them together with a single C-/ (if I decide to undo).</p> <p>I tried to copy exactly from other function which has this property, but this didn't work out. The code below is what I have now:</p> <pre><code>(defun insert-todo () "Appednd 'TODO username: date - ' at the end of line and set point to where this string ends" (interactive) (setq buffer-undo-list (cons (point) buffer-undo-list)) ;; save the point for undo (save-excursion (end-of-line) (setq eol (point)) (let ((buffer-undo-list t)) ;; do not record following commands for undo (insert " " comment-start (save-excursion comment-end)) (insert (format " TODO %s: " (getenv "USER")) (format-time-string "%d.%m.%Y") " - ") (setq buffer-undo-list (cons (cons eol (point)) buffer-undo-list)))) (end-of-line) ) </code></pre>
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    1. COSorry, but I don't understand. What does "inserted text" stand for?
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