突出显示缓冲区修改 [英] Highlight buffer modifications

问题描述

经常发生文件缓冲区被修改（呃！）。在退出之前，emacs询问是否保存更改。现在知道实际改变是有趣的。有没有办法找出？

解决方案

截至Emacs 22.1（至少），'保存-buffers-kill-emacs （ Cx Cc 的默认绑定）会提示您输入具有文件的每个未保存的缓冲区。在提示保存并查看差异时键入 d

从帮助文档中：

 保存一些修改后的文件访问缓冲区。向用户询问每个人。 
你可以回答`y'保存，`n'不保存`````````````````````````` b $ b使用`diff-buffer-with-file'来查看差异。 
  

如果您看到提示，应该说如下：

 保存文件/path/to/file.txt？ （y，n，！，。，q，Cr，d或Ch）
  

键入< > Ch 给你一些更详细的描述（但 d 是你要求的）：

 键入SPC或`y'保存当前缓冲区; 
 DEL或`n'跳过当前的缓冲区; 
 RET或`q'放弃保存（跳过所有剩余的缓冲区）; 
 C-g退出（取消整个命令）; 
！保存所有剩余的缓冲区; 
 C-r查看此缓冲区; 
 d查看此缓冲区中的更改; 
或。 （期间）保存当前缓冲区并退出。 
  

It often occurs that a file buffer is modified (duh!). Before exiting, emacs asks whether to save the changes. Now it would be interesting to know what actually changed. Is there a way to find out?

解决方案

As of Emacs 22.1 (at least), 'save-buffers-kill-emacs (the default binding for C-x C-c) prompts you for each unsaved buffer that has a file. Type a d when prompted to save and see the diff.

From the help documentation:

Save some modified file-visiting buffers.  Asks user about each one.
You can answer `y' to save, `n' not to save, `C-r' to look at the
buffer in question with `view-buffer' before deciding or `d' to
view the differences using `diff-buffer-with-file'.

If you look at the prompt, it should say something like:

Save file /path/to/file.txt? (y, n, !, ., q, C-r, d, or C-h) 

Typing C-h gives you a little more verbose description (but d is what you are asking for):

Type SPC or `y' to save the current buffer;
DEL or `n' to skip the current buffer;
RET or `q' to give up on the save (skip all remaining buffers);
C-g to quit (cancel the whole command);
! to save all remaining buffers;
C-r to view this buffer;
d to view changes in this buffer;
or . (period) to save the current buffer and exit.

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