emacs - 如果 emacs 处于事件状态，则搜索区域

Question

有没有办法告诉 isearch 搜索事件区域(如果有)？
否则会定期提示输入字符串。

编辑:27.10.12

我最终使用了这些功能:

(defun er/isearch-word-at-point ()
  (interactive)
  (call-interactively 'isearch-forward-regexp))

(defun er/isearch-yank-word-hook ()
  (when (equal this-command 'er/isearch-word-at-point)
    (let ((string (concat "\\<"
                          (buffer-substring-no-properties
                           (progn (skip-syntax-backward "w_") (point))
                           (progn (skip-syntax-forward "w_") (point)))
                          "\\>")))
      (if (and isearch-case-fold-search
               (eq 'not-yanks search-upper-case))
          (setq string (downcase string)))
      (setq isearch-string string
            isearch-message
            (concat isearch-message
                    (mapconcat 'isearch-text-char-description
                               string ""))
            isearch-yank-flag t)
      (isearch-search-and-update))))

(defun er/isearch-yank-region ()
  (interactive)
  (isearch-yank-internal (lambda () (mark))))

(define-key isearch-mode-map (kbd "C-r") 'er/isearch-yank-region)
(define-key isearch-mode-map (kbd "C-t") 'er/isearch-word-at-point)

第一个是我在网上某处找到的一个函数，将光标下的单词标记为搜索词(类似于 vim 中的 * 和 #)并直接跳转到下一次出现，第二个是@Oleg Pavliv 的答案。

编辑 #2

实际上，为什么不将它们两者结合起来以获得超甜呢？好吧!

(defun er/isearch-word-or-region-at-point ()
  (interactive)
  (if (region-active-p)
      (isearch-yank-internal (lambda () (mark)))
  (call-interactively 'isearch-forward-regexp)))

(defun er/isearch-yank-word-hook ()
  (when (equal this-command 'er/isearch-word-or-region-at-point)
    (let ((string (concat "\\<"
                          (buffer-substring-no-properties
                           (progn (skip-syntax-backward "w_") (point))
                           (progn (skip-syntax-forward "w_") (point)))
                          "\\>")))
      (if (and isearch-case-fold-search
               (eq 'not-yanks search-upper-case))
          (setq string (downcase string)))
      (setq isearch-string string
            isearch-message
            (concat isearch-message
                    (mapconcat 'isearch-text-char-description
                               string ""))
            isearch-yank-flag t)
      (isearch-search-and-update))))
(add-hook 'isearch-mode-hook 'er/isearch-yank-word-hook)
(define-key isearch-mode-map (kbd "C-r") 'er/isearch-word-or-region-at-point)

Answer 1

好问题。

在 Emacs 中似乎没有这种可能性。你可以自己实现

(defun isearch-yank-region ()
  (interactive)
  (isearch-yank-internal (lambda () (mark))))


(define-key isearch-mode-map "\C-r" 'isearch-yank-region)

现在选择一个区域，调用增量搜索 C-s并猛拉该区域 C-r .然后你可以继续增量搜索 C-s .