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unreading a command key sequence

From: Lennart Borgman (gmail)
Subject: unreading a command key sequence
Date: Wed, 07 May 2008 03:43:53 +0200
User-agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv: Gecko/20071031 Thunderbird/ Mnenhy/

I just had a problem with unreading a command key sequence that lead to that Emacs looped. Looking into it I found that it is a bit non-trivial to unread a command key sequence. I am not sure I have got every thing correct but this is what I am using now

  ;; Unread the last command
  (setq last-command-char nil) ;; For viper
  (setq unread-command-events
        (listify-key-sequence (this-command-keys-vector)))

The missing bit that lead to the looping was setting last-command-char to nil.

Maybe something like this could be included in the manual in
(info "(elisp) Event Input Misc")?

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