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2008-09-04 13:09:47

1. 使用vim来编辑程序
 
首先先安装vim工具包,安装方法就不详细介绍了:
 

[lvdbing@localhost test]$ rpm -qa |grep vim
vim-enhanced-6.3.046-0.40E.7
vim-minimal-6.3.046-0.40E.7
vim-common-6.3.046-0.40E.7

默认情况下,vim会打开高亮显示语法的。

[lvdbing@localhost test]$ cat /etc/vimrc
if v:lang =~ "utf8$" || v:lang =~ "UTF-8$"
   set fileencodings=utf-8,latin1
endif

set nocompatible
" Use Vim defaults (much better!)
set bs=2 "
allow backspacing over everything in insert mode
"set ai " always set autoindenting on
"set backup " keep a backup file
set viminfo='20,\"50 " read/write a .viminfo file, don't store more
                        
" than 50 lines of registers
set history=50 "
keep 50 lines of command line history
set ruler
" show the cursor position all the time

"
Only do this part when compiled with support for autocommands
if has("autocmd")
  
" In text files, always limit the width of text to 78 characters
  autocmd BufRead *.txt set tw=78
  "
When editing a file, always jump to the last cursor position
  autocmd BufReadPost *
  \ if line("'\"") > 0 && line ("'\"") <= line("$") |
  \ exe "normal! g'\"" |
  \ endif
endif

if has("cscope")
   set csprg=/usr/bin/cscope
   set csto=0
   set cst
   set nocsverb
   
" add any database in current directory
   if filereadable("
cscope.out
")
      cs add cscope.out
   "
else add database pointed to by environment
   elseif $CSCOPE_DB != ""
      cs add $CSCOPE_DB
   endif
   set csverb
endif

" Switch syntax highlighting on, when the terminal has colors
"
Also switch on highlighting the last used search pattern.
if &t_Co > 2 || has("gui_running")
  syntax on
  set hlsearch
endif

if &term=="xterm"
     set t_Co=8
     set t_Sb=dm
     set t_Sf=dm
endif

如上面红色字体显示的/etc/vimrc配置文件中。


2. 折叠行

#!/usr/bin/perl -w

# vim: set ai cindent et sw=4 ts=4 nowrap foldmethod=marker:

# Date : 2008-09-04

# Author: lvDbing


# {{{ sub part1($a,$b)

PART1:
@list = (0x53,0x77,0x65,0x64,0x65,0x6e,012);
@words = map chr, @list;
print @words;
# }}}


# {{{ sub part2($c,$d)

PART2:
@n = (2,4,6,8);
@n = map $_*2 + 6, @n;
print "@n\n";

# }}}

用vim打开后显示如下:

#!/usr/bin/perl -w

# vim: set ai cindent et sw=4 ts=4 nowrap foldmethod=marker:

# Date : 2008-09-04

# Author: lvDbing


+-- 6 lines:
# sub part1($a,$b) -----------------------------------------------------------------------------------------------


+-- 6 lines: # sub part2($c,$d) -----------------------------------------------------------------------------------------------

这样可以把在 # {{{sub xxx()  ...   # }}} 行的内容给折叠起来了,方便对整个程序的把握。

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