Re: better browsing of IRC logs

On Tue, 22 Feb 2011, Adam Monsen wrote:

> I use irssi for IRC. I like to quickly browse (local) logs (in vim)
> sometimes before sending a message. I've got a rather clunky way of
> browsing them, and I'm fishing for ideas on how to improve the
> process.
>
> Here's a log snippet:
>
> --- Day changed Fri Feb 11 2011
> 00:12 < foo> this should help: http://www.example.com
> 00:13 < bar> that's great, thanks
> ...snip several hundred messages...
> 14:23 < me> hey guys, have you seen http://www.example.com ?
>
> To figure out when X was last discussed, usually I
>
> * open the file in Vim
> * use "G" to skip to the bottom of the file
> * search backward for X
> * search backward again for [some part of] the phrase "^--- Day changed"
>
> Anyone have ideas on better/faster ways to do this?

Personally, I would do, in irssi:
/SET log_timestamp %Y-%m-%d %H:%M:%S
(with a trailing space)

Doesn't really solve your current problem, since old logs would remain
"day + H:M"-dependent, but IMO it's vastly preferable.

> One thing that would be nice if there was an easy way to always force
> the first line of the editor to be the nearest "^--- Day changed" line
> above the current line. Or just to have it displayed on the/a status
> bar or a preview window or something.

Something like this should work:

==> ~/.vim/plugin/irssi-log-date.vim <==
fun! FindPriorDay()
let l=line('.')
while l
let date=matchlist(getline(l), '--- \%(Log opened\|Day changed\) \(.*\)')
let l-=1
if !len(date)
continue
endif
return date[1]
endwhile
return '(no date)'
endfun
set stl=%{FindPriorDay()}
========================================

But, that blasts the entire status bar which I find annoying. YMMV, or
just incorporate the %{FindPriorDay()} portion into your own 'stl'
setting. (See: :help 'stl' for much more.)

--
Best,
Ben

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