On 06/20/2010 06:38 AM, Yosi Izaq wrote:
For example, search for line starting with current day (^17).
How can it be done?- The following doesn't work: /^r!date | awk
'{print $3}'
For your particular use-case, I'd use vim's internal strftime()
function:
:nnoremap <f4> /^<c-r>=strftime('%d')<cr><bslash>><cr>
:cnoremap <f4> <c-r>=strftime('%d')<cr>
You don't mention what single-digit dates look like in your file
(whether they are left-justified, or padded with spaces or a
leading zero). So you might have to use "%e" (pad with spaces)
instead of "%d" (pad with a zero) or strip the unwanted stuff:
:nnoremap <f4> /^<c-r>=substitute(strftime('%d'), '^0*', '',
'')<cr><bslash>><cr>
:cnoremap <f4><c-r>=substitute(strftime('%d'), '^0*', '', '')<cr>
==========================
For your more general case, I'd use vim's system() function to
call an external program or chain and return the output such as:
system("date | awk '{print $3}'")
however, that returns the trailing newline, so you'd have to
clean that out:
substitute(system("date | awk '{print $3}'"), '\D', '', 'g')
To get this into your search, you can either assign to the search
register:
:let @/ = substitute(system(...)...)
and then use n/N to navigate next/previous matches, or you can
use expression register (as I do above with control+R followed by
the "=" to allow you to enter an expression that gets evaluated
and returned in your context). You can read more at
:help @/
:h c_CTRL-R_=
:h substitute()
:h system()
:h strftime()
Hope this helps,
-tim
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