如何在vim脚本中替换光标下的单词？

Question

After getting the current word with expand("<cWORD>") and processing the result string, I'm trying to replace the current word with it.

How can I do this?

EDIT Source added. I wrote it in python.

cur_word = vim.eval('expand("<cWORD>")')
parts = cur_word.split('.')
if parts:
    obj, accesses = parts[0], parts[1:]
    result = obj + ''.join("['%s']"%a for a in accesses)
    # how do I replace the current word with result?

Answer 1

Edit

It looks like you wanted this:

viW
:s/\%V\.\(\w\+\)\%V/\="['" . submatch(1) . "']"/g

Eg, for the following text, curosr on the second line:

x = a.get.property;
x = a.git.another.property;   # cursor on the first letter 'e'

The result will be

x = a.get.property;
x = a['git']['another']['property'];

---

You probably wanted you

1. yank one word , then
2. move the cursor (which you don't mention)
3. _replace the word under cursor by previously yanked word?

That would be

y i W (move cursor around) v i W p

So eg:

 the lazy cow mooned over the racy hump
 cursor here:   ----> +        

Now, doing y i W (yank inner WORD), F a (back to:)

 the lazy cow mooned over the racy hump
  --> +        

Now, v i W p replaces current WORD:

 the over cow mooned over the racy hump
    --> +

Answer 2

In the python interface for Vim, you can execute normal mode command, in your case,

  vim.command("normal BcW%s" % result)

will do the trick.