On Thu, May 11, 2006 at 03:51:55AM -0700, Gerald Lai wrote:
> [GVim 7.0 release for Windows]
>
> This is how I do my PageUp/Down:
>
> inoremap <PageDown> <C-o><C-d><C-o><C-d><C-o><C-y>
> inoremap <PageUp> <C-o><C-u><C-o><C-u><C-o><C-e>
>
> If I do
>
> inoremap <PageDown>
> <C-r>="\<lt>C-o>\<lt>C-d>\<lt>C-o>\<lt>C-d>\<lt>C-o>\<lt>C-y>"<CR>
> inoremap <PageUp>
> <C-r>="\<lt>C-o>\<lt>C-u>\<lt>C-o>\<lt>C-u>\<lt>C-o>\<lt>C-e>"<CR>
>
> it does not work.
>
> This
>
> inoremap <PageDown> <C-r>="\<lt>C-o>\<lt>C-d>\<lt>C-d>\<lt>C-y>"<CR>
> inoremap <PageUp> <C-r>="\<lt>C-o>\<lt>C-u>\<lt>C-u>\<lt>C-e>"<CR>
>
> works.
>
> Sticky "\<C-o>" while in <C-r>=?
Let me try to simplify the example. The mapping does not seem to
be important here, and the only control character we need is <C-O>.
If, for some reason, I want to back up two words in Insert mode,
then I can type (not literally)
<C-o>b<C-o>b
(assuming that I do not want to use <C-Left> for some reason).
Next, I type (still not literally)
<C-r>="\<C-o>b"<CR>
and I go back one word: so far, so good. Next,
<C-r>="\<C-o>b\<C-o>b"<CR>
does not behave as expected ... at least, not as I expected! But
<C-r>="\<C-o>bb"<CR>
does back me up two words. As you say, the <C-O> seems to be "sticky":
the bb is treated as one Normal-mode command.
I agree that this behavior seems odd and inconsistent.
HTH --Benji Fisher
