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如何删除orgmode headline下的所有内容

 2 years ago
source link: https://www.lujun9972.win/blog/2018/09/26/%E5%A6%82%E4%BD%95%E5%88%A0%E9%99%A4orgmode-headline%E4%B8%8B%E7%9A%84%E6%89%80%E6%9C%89%E5%86%85%E5%AE%B9/index.html
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如何删除orgmode headline下的所有内容

找到指定的headline

使用 (org-goto-local-search-headings STRING BOUND NOERROR) 可以将光标定位到指定的headline处。

但是要注意的是，这个函数的行为跟 isearch-forward 的值相关:

若 isearch-forward 的值为 t, 则 org-goto-local-search-headlings 从前向后搜索，通常这时你会需要把光标移动到 (point-min) 处 

(save-excursion
  (goto-char (point-min))
  (org-goto-local-search-headings "Report" nil nil))

若 isearch-forward 的值为 nil, 则 org-goto-local-search-headlings 从后向前搜索，通常这时你会需要把光标移动到 (point-max) 处 

(save-excursion
  (goto-char (point-max))
  (org-goto-local-search-headings "Report" (point-min) nil))

删除head下的所有内容

org-mode似乎没有提供专门的函数来清空head下的所有内容，但是它提供了一个 org-mark-subtree 函数用来mark整个subtree(包括headline),因此你可以很容易写出这么一个函数来: 

(defun clear-subtree ()
  (interactive)
  (org-mark-subtree) ;; mark 当前subtree，包括headline
  (forward-line) ;; 去掉headline
  (delete-region (region-beginning) (region-end)) ;; 删除剩下的内容
)

类似的，org-mode还提供了一个 org-mark-element 来mark某个元素，比如你像删除某个org-time-clock那么可以这么做 

(when (search-forward-regexp "^\s*#\\+BEGIN:\s+clocktable" nil t)
  (org-mark-element)
  (delete-region (region-beginning) (region-end)))

report

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