Behavior of i_Ctrl_o

[hebar...@googlemail.com]

After adding a line with "o" (on an indented line with "autoindent" on) then (while being in INSERT mode) using "^O" to enter a NORMAL mode command the cursor jumps back to the beginning of the line (erasing the indent), and will not return to the starting position after immediately pressing ESC (i.e. "o^O<ESC>").
This behavior is not observed, if - indenting to the same cursor position - the same keys are pressed (i.e. "<white_space>+^O<ESC>"). In this case the cursor's position is unchanged.

Is this behavior intended?

Intended or not, it makes writing code difficult, as you have to know how you got here ("o" vs. indenting) i.e. the behavior is different.

mode() shows "i" in both cases.

[Tony Mechelynck]

IIUC what is said under ":help 'autoindent'", this behaviour is
intended, as follows:

> *'autoindent'* *'ai'* *'noautoindent'* *'noai'*
> 'autoindent' 'ai' boolean (default off)
> local to buffer
> Copy indent from current line when starting a new line (typing <CR>
> in Insert mode or when using the "o" or "O" command). If you do not
> type anything on the new line except <BS> or CTRL-D and then type
> <Esc>, CTRL-O or <CR>, the indent is deleted again. Moving the cursor
> to another line has the same effect, unless the 'I' flag is included
> in 'cpoptions'.
> When autoindent is on, formatting (with the "gq" command or when you
> reach 'textwidth' in Insert mode) uses the indentation of the first
> line.
> When 'smartindent' or 'cindent' is on the indent is changed in
> a different way.
> The 'autoindent' option is reset when the 'paste' option is set and
> restored when 'paste' is reset.

"If you do not type anything on the new line […] and then type <Esc>,
CTRL-O or <CR>, the indent is deleted again."

Best regards,
Tony.

> --
> --
> You received this message from the "vim_dev" maillist.
> Do not top-post! Type your reply below the text you are replying to.
> For more information, visit http://www.vim.org/maillist.php
>
> ---
> You received this message because you are subscribed to the Google Groups "vim_dev" group.
> To unsubscribe from this group and stop receiving emails from it, send an email to vim_dev+u...@googlegroups.com.
> To view this discussion on the web visit https://groups.google.com/d/msgid/vim_dev/d4c174ad-3dcb-4dbc-9cc9-a1d5583c7e02n%40googlegroups.com.

[Axel Bender]

Thx for the explanation, Tony. Obviously I looked in the wrong place(s)...