Question

我在文档中指示需要注意的位置的首选方法是使用三个星号***。当需要使用shift+right-word或shift+left-word选择包含三个星号的区域时，这些函数会跳过三个星号并移动到下一个单词。当我在bindings.el内窥视时，我看到left-word和right-word是forward-word和backward-word的修改，可追溯到C中的内置函数源代码。基本上，我正在寻找包含三个星号left-word等符号的right-word和***。

任何人都可以建议一种方法来让一个或多个符号跳到左边，一个或多个符号跳到右边。该函数需要表现得类似于左词和右词，这样如果箭头键被按下多次，我可以选择多个单词 - 例如left-word-or-symbols和right-word-or-symbols。

以下是基于以下有用答案的自定义功能：

(defvar lawlist-movement-syntax-table
  (let ((st (make-syntax-table)))
    ;; ` default = punctuation
    ;; ' default = punctuation
    ;; , default = punctuation
    ;; ; default = punctuation
    (modify-syntax-entry ?{ "." st)  ;; { = punctuation
    (modify-syntax-entry ?} "." st)  ;; } = punctuation
    (modify-syntax-entry ?\" "." st) ;; " = punctuation
    (modify-syntax-entry ?\\ "_" st) ;; \ = symbol
    (modify-syntax-entry ?\$ "_" st) ;; $ = symbol
    (modify-syntax-entry ?\% "_" st) ;; % = symbol
    st)
  "Syntax table used while executing custom movement functions.")

(defun lawlist-forward-entity ()
"http://stackoverflow.com/q/18675201/2112489"
(interactive "^")
  (with-syntax-table lawlist-movement-syntax-table
    (cond
      ((eolp)
        (forward-char))
      ((and
          (save-excursion (< 0 (skip-chars-forward " \t")))
          (not (region-active-p)))
        (skip-chars-forward " \t"))
      ((and
          (save-excursion (< 0 (skip-chars-forward " \t")))
          (region-active-p))
        (skip-chars-forward " \t")
        (cond
          ((save-excursion (< 0 (skip-syntax-forward "w")))
            (skip-syntax-forward "w"))
          ((save-excursion (< 0 (skip-syntax-forward ".")))
            (skip-syntax-forward "."))
          ((save-excursion (< 0 (skip-syntax-forward "_()")))
            (skip-syntax-forward "_()"))))
      ((save-excursion (< 0 (skip-syntax-forward "w")))
        (skip-syntax-forward "w")
        (if (and
              (not (region-active-p))
              (save-excursion (< 0 (skip-chars-forward " \t"))))
          (skip-chars-forward " \t")))
      ((save-excursion (< 0 (skip-syntax-forward ".")))
        (skip-syntax-forward ".")
        (if (and
              (not (region-active-p))
              (save-excursion (< 0 (skip-chars-forward " \t"))))
          (skip-chars-forward " \t")))
      ((save-excursion (< 0 (skip-syntax-forward "_()")))
        (skip-syntax-forward "_()")
        (if (and
              (not (region-active-p))
              (save-excursion (< 0 (skip-chars-forward " \t"))))
          (skip-chars-forward " \t"))))))

(defun lawlist-backward-entity ()
"http://stackoverflow.com/q/18675201/2112489"
(interactive "^")
  (with-syntax-table lawlist-movement-syntax-table
    (cond
      ((bolp)
        (backward-char))
      ((save-excursion (> 0 (skip-chars-backward " \t")) (bolp))
        (skip-chars-backward " \t"))
      ((save-excursion (> 0 (skip-chars-backward " \t")) (> 0 (skip-syntax-backward "w")))
        (skip-chars-backward " \t")
        (skip-syntax-backward "w"))
      ((save-excursion (> 0 (skip-syntax-backward "w")))
        (skip-syntax-backward "w"))
      ((save-excursion (> 0 (skip-syntax-backward ".")))
        (skip-syntax-backward "."))
      ((save-excursion (> 0 (skip-chars-backward " \t")) (> 0 (skip-syntax-backward ".")))
        (skip-chars-backward " \t")
        (skip-syntax-backward "."))
      ((save-excursion (> 0 (skip-syntax-backward "_()")))
        (skip-syntax-backward "_()"))
      ((save-excursion (> 0 (skip-chars-backward " \t")) (> 0 (skip-syntax-backward "_()")))
        (skip-chars-backward " \t")
        (skip-syntax-backward "_()")))))

Answer 1

添加到模式的模式挂钩，您正在编辑文本：

(modify-syntax-entry ?* "w")

阅读here了解详情。

请注意，这会使其他函数将星号视为单词构成（但是，您可能想要它，因为您很快就会发现不仅运动命令的行为与您希望它们的行为相反）。

另一种仅重载这些特定命令的方法是使用defadvice建议它们，并在函数持续时间内临时更改语法表。

Answer 2

你可能喜欢Emacs-24.4的superword-mode。

替代前向词/后向词以包含符号 - 例如***

2 个答案: