On 14/10/08 15:03, Teemu Likonen wrote:
> [2008-10-14 05:44 -0700] fritzophrenic wrote:
>
>> On Oct 14, 3:54 am, Teemu Likonen<[EMAIL PROTECTED]> wrote:
>>> vipc
>> Or how about dip instead, saving 2 keystrokes (unless you _want_ to be
>> in insert mode after you delete the lines).
>
> We wanted to leave one empty line and "vipc" or "cip" does that; "dip"
> deletes all so we would need "O" to open a new line, which in turn puts
> us to insert mode too. We have to choose:
>
> vipc
> cip
> dipO
> vipdO
>
> But...
>
>>> map<C-x><C-o> :if getline('.') =~ '^\s*$'<bar>
>>> \ execute 'normal! vipc'<bar> endif<CR>
>
> ...since we run the normal mode commands with :execute we don't end up
> in insert mode.
>
>> Note the use of =~ to match a regular expression, and the use of '\s'
>> inside the regular expression to match _any_ whitespace, and not just
>> spaces and tabs like some previous patterns.
>
> Apart from spaces and tabs, what are those other whitespaces that \s
> matches?
:%g/^\s*$/d
deletes any lines consisting of any mixture of zero or more spaces
and/or tabs
:%g/^\t*$/d
deletes any lines consisting only of zero or more tabs
:%g/^ *$/
deletes any lines consisting only of zero or more spaces
The advantage of \s* is that it matches _any mixture_ of spaces and
tabs, not just only the one or only the other.
Best regards,
Tony.
--
Anyone who cannot cope with mathematics is not fully human. At best he
is a tolerable subhuman who has learned to wear shoes, bathe and not
make messes in the house.
-- Lazarus Long, "Time Enough for Love"
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