有关 Emacs 使用技巧的内容请在这个帖子讨论。

lgfang

原帖由 william.zhang 于 2008-2-3 11:16 发表
用emacs
注释的时候可以c-c c但是取消注释的时候却没有相应的命令。

不知道是否真的没有？

那是因为你用错键了。

加注释，去注释都是

1. M-;

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（Meta + 分号）
当然前提是 (setq-default transient-mark-mode t)                                                                                          打开了。

为什么是分号？因为 elisp 里面 ';' 是注释符（就相当于shell里的 '#'）。

william.zhang

thanks

new_hand

在多个buffer（窗口）的情况下，每当我输入一个命令时，输出结果老是跑到另一个窗口中，我能将结果在当前窗口上显示吗？？

lgfang

我写的，计算 NCSL 的 elisp 脚本

http://blog.chinaunix.net/u/23408/showart.php?id=480258

1. 
   
2. #!/home/lungangfang/local/bin/emacs --script
   
3. 
   
4. ;;; ncsl.el --- counting NCSL
   
5. 
   
6. ;; Created:  Fang lungang 02/27/2008
   
7. ;; Modified: Fang lungang 02/28/2008 19:25>
   
8. 
   
9. ;; Copyright (C) 2008  Fang lungang
   
10. 
    
11. ;; Author: Fang lungang <lgfang at users.sourceforge.net>
    
12. ;; Keywords: files, tools
    
13. 
    
14. ;; This file is NOT part of GNU Emacs.
    
15. 
    
16. ;; This file is free software; you can redistribute it and/or modify
    
17. ;; it under the terms of the GNU General Public License as published by
    
18. ;; the Free Software Foundation; either version 2, or (at your option)
    
19. ;; any later version.
    
20. 
    
21. ;; This file is distributed in the hope that it will be useful,
    
22. ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
    
23. ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    
24. ;; GNU General Public License for more details.
    
25. 
    
26. ;; You should have received a copy of the GNU General Public License
    
27. ;; along with GNU Emacs; see the file COPYING.  If not, write to
    
28. ;; the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
    
29. ;; Boston, MA 02110-1301, USA.
    
30. 
    
31. ;;; Commentary:
    
32. 
    
33. ;; This script is to count (and sum up) number of NCSLs (Non-Comment
    
34. ;; Source Line).  Comments and blank lines are ignored.  For C/C++
    
35. ;; code, lines between '#if 0' and '#endif' are ignored as well.
    
36. 
    
37. ;; Examples:
    
38. ;; find . -type f -name '*.[hc]' | ncsl.el
    
39. ;; find . -type f -name '*.[hc]' | emacs --script /path/to/ncsl.el
    
40. 
    
41. ;;; Code:
    
42. 
    
43. (require 'hideif)
    
44. (require 'newcomment)
    
45. 
    
46. (let ((file nil) (sum 0) (ncsl 0))
    
47.   (condition-case nil
    
48.       (while (setq file (read-string "")) ; for each file
    
49.         (find-file file)
    
50.         (setq ncsl 0)
    
51. 
    
52.         ;; for C/c++ files, hide if 0
    
53.         (when (or (equal 'c-mode major-mode) (equal 'c++-mode major-mode))
    
54.           (goto-char (point-min))
    
55.           (while (re-search-forward "^[ \t]*#if[ \t]*0" nil t)
    
56.             (hide-ifdef-block)))
    
57. 
    
58.         (goto-char (point-min))
    
59.         (while (not (eobp))
    
60.           ;; suppose there won't be 10000 consecutive comments
    
61.           (forward-comment 10000)
    
62.           (setq ncsl (+ 1 ncsl))
    
63.           ;; In case a comment starts at current line and spans several
    
64.           ;; lines.
    
65.           (let* ((eol (line-end-position)) (cs (comment-search-forward eol t)))
    
66.             (while cs
    
67.               (goto-char cs)
    
68.               (forward-comment 10000)
    
69.               (setq cs (comment-search-forward eol t)))
    
70.             (unless (> (point) eol)     ; unless already a new line
    
71.               (forward-visible-line 1))))
    
72.         (setq sum (+ sum ncsl))
    
73.         (kill-buffer nil)
    
74.         (princ (format "%d %s\n" ncsl file)))
    
75.     (error (princ (format "%s total\n" sum)))))
    
76. 
    
77. ;;; ncsl.el ends here
    

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[ 本帖最后由 lgfang 于 2008-2-28 19:25 编辑 ]

heixia108

请问一下，什么原因？      cedet.el存在谢谢

[heixia@localhost ecb-2.32]$ make
Byte-compiling ECB with LOADPATH= ...
emacs -batch -no-site-file -l ecb-compile-script --eval '(ecb-byte-compile t)'
Loading subst-jis...
Loading subst-ksc...
Loading subst-big5...
Loading subst-gb2312...
Cannot open load file: /home/heixia/lisp/ecb-2.32/c:/Programme/emacs-21/site-lisp/package-development/cedet/common/cedet.el
make: *** [ecb] 错误 255

lgfang

原帖由 heixia108 于 2008-3-14 13:12 发表
请问一下，什么原因？      cedet.el存在谢谢

[heixia@localhost ecb-2.32]$ make
Byte-compiling ECB with LOADPATH= ...
emacs -batch -no-site-file -l ecb-compile-script --eval '(ecb-byte-compile t)'
Loading subst-jis...
Loading subst-ksc...
Loading subst-big5...
Loading subst-gb2312...
Cannot open load file: /home/heixia/lisp/ecb-2.32/c:/Programme/emacs-21/site-lisp/package-development/cedet/common/cedet.el
make: *** [ecb] 错误 255

猜想是不是是load path没有设对

yanite

唉，找了N多论坛，没看到几个人用Emacs开发Java的，可能是Eclipse太出才了吧。

我装了Emacs 23.0 JDEE 2.3.5但是配置总是出问题

想问下有谁配置成功过，将配置文件发来参考下。

谢谢!

projoy

怎么在EMACS中运行C代码？

heixia108

嗯，是path没设对，谢谢
不好意思才看到

heixia108

我是写了个通用的Makefile，然后，在emacs里只用make就行了，运行可以进入shell模式