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    <p>I will answer this question myself.</p> <p>I could not figure out an "orthodoxy" way to solve the problem and I came up with a hack.</p> <p>The function that is bound to in viper insert mode (viper-del-backward-char-in-insert) is adviced to check whether cursor is currently in a matched pair, if so, the character after the cursor is deleted before the actual function is called. This also takes into account possible problem caused by prefix character (backslash).</p> <p>Just copy the code below into your .emacs file after viper-mode or vimpulse is loaded.</p> <pre><code>(defun not-escaped (escape-char) "Character immediately before cursor is not prefixed by escape-char" (let ((count 0)) (save-excursion (if (char-before) (backward-char)) (while (and (char-before) (= (char-before) escape-char)) (setq count (+ count 1)) (backward-char)) (if (= 0 (% count 2)) t nil)))) (defun in-matched-empty-pair (pair-list) "tell if cursor is in an empty pair in pair-list" (let ((next-char (char-after)) (prev-char (char-before)) (matched nil) (pair) (pair-left) (pair-right)) (if (and next-char prev-char) (while (and (setq pair (pop pair-list)) (not matched)) (setq pair-left (pop pair) pair-right (pop pair)) (if (= next-char pair-right) (if (and (= prev-char pair-left) (not-escaped ?\\)) (setq matched t))))) (if matched t nil))) (defvar viper-workaround-pairs '( (?\" ?\") (?\' ?\') (?\` ?\`) (?\( ?\)) (?\[ ?\]) (?\{ ?\}) )) ;; Workaround for integration problem with autopair (defadvice viper-del-backward-char-in-insert (before viper-auto-delete-pair-backward()) (if (in-matched-empty-pair viper-workaround-pairs) (delete-char 1))) ;; Activate advice (ad-activate 'viper-del-backward-char-in-insert) </code></pre> <p>This is a hack but it is probably the best I could do now.</p>
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