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Improve avy-goto-char-timer.

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1. Handle DEL in order to fix typos.
2. Handle RET in order to use the current input string immediately
   without waiting for another char for avy-timeout-seconds.
3. Highlight matches while reading chars.
This commit is contained in:
Tassilo Horn 2015-09-16 18:29:37 +02:00
parent 3f53a2a15e
commit f9d7a76cd4
1 changed files with 42 additions and 11 deletions
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43
avy.el
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@ -1039,17 +1039,48 @@ ARG lines can be used."
(defun avy--read-string-timer ()
"Read as many chars as possible and return them as string.
At least one char must be read, and then repeatedly one next char
may be read if it is entered before `avy-timeout-seconds'."
(let ((str "") char)
(while (setq char (read-char (format "char%s: "
may be read if it is entered before `avy-timeout-seconds'. `DEL'
deletes the last char entered, and `RET' exits with the currently
read string immediately instead of waiting for another char for
`avy-timeout-seconds'."
(let ((str "") char break overlays)
(unwind-protect
(progn
(while (and (not break)
(setq char (read-char (format "char%s: "
(if (string= str "")
str
(format " (%s)" str)))
t
(and (not (string= str ""))
avy-timeout-seconds)))
(setq str (concat str (list char))))
str))
avy-timeout-seconds))))
;; Unhighlight
(dolist (ov overlays)
(delete-overlay ov))
(setq overlays nil)
(cond
;; Handle RET
((= char 13)
(setq break t))
;; Handle DEL
((= char 127)
(let ((l (length str)))
(when (>= l 1)
(setq str (substring str 0 (1- l))))))
(t
(setq str (concat str (list char)))))
;; Highlight
(when (>= (length str) 1)
(save-excursion
(goto-char (window-start))
(while (re-search-forward (regexp-quote str) (window-end) t)
(let ((ov (make-overlay (match-beginning 0) (match-end 0))))
(push ov overlays)
(overlay-put ov 'window (selected-window))
(overlay-put ov 'face 'avy-lead-face))))))
str)
(dolist (ov overlays)
(delete-overlay ov)))))
;;;###autoload
(defun avy-goto-char-timer (&optional arg)