为啥这个vim的命令可以做到排版的作用呢？

[Wizard]

http://stackoverflow.com/questions/3033423/vim-command-to-restructure-force-text-to-80-columns

上面的是原贴， 使用了，确实可以做到让原来超长的行自动换行。
但是没看懂这个是具体怎么实现的。


gqG

g 应该是 global , 说是找到一个模式，然后执行某个命令。
q 说是记录后面的命令到一个register。
G 是到文件末尾


但是合起来我就看不懂怎么能做到排版文件的。。。


--
Wizard

[AR]

在vim里

:help gq


gq{motion} Format the lines that {motion} moves over.
Formatting is done with one of three methods:
1. If 'formatexpr' is not empty the expression is
evaluated. This can differ for each buffer.
2. If 'formatprg' is not empty an external program
is used.
3. Otherwise formatting is done internally.

In the third case the 'textwidth' option controls the
length of each formatted line (see below).
If the 'textwidth' option is 0, the formatted line
length is the screen width (with a maximum width of
79).
The 'formatoptions' option controls the type of
formatting fo-table.
The cursor is left on the first non-blank of the last
formatted line.


原帖里说了，先移动到文件开头去，这里motion的那个G就是操作到文件末尾。


--
Silence is golden.

[Wizard]

多谢啊， 原来这gq一起就是一个命令。。。

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--
Wizard

[Jerry Ling]

是gg=G

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