* On 07 Jan 2011, du yang wrote:
> Hi,
>
> I improved the script to fulfill the author's the expectation(just display
> time for today's mails),
> only 'if condition' changed.
> ...
> if [ $(date -d "$(date '+%Y-%m-%d')" "+%s") -gt $epoch ]; then
> echo "%4C %Z %{%d.%m.%y} %-15.15F (%?l?%4l&%4c?) %?H?[%H]?%s%"
It occurs to me that there is an optimization for this specific case.
Since the desired breaking point is simply "the beginning of today",
you can exploit the fact that %Y%m%d is a monotonic function when you
interpret it as an integer. (That is, it alpha-sorts and integer-sorts
in the same order as it date-sorts.)
set index_format="./format_date.sh '%[%Y%m%d]' |"
#!/bin/sh
if [ $1 -eq `date +%Y%m%d` ]; then
echo "%4C %Z %{ %H:%M} %-15.15F (%?l?%4l&%4c?) %?H?[%H]?%s%"
else
echo "%4C %Z %{%d.%m.%y} %-15.15F (%?l?%4l&%4c?) %?H?[%H]?%s%"
fi
I'm still not sure about performance though. I have a 58-row terminal
and do not want to run 116 processes for each page view in mutt. :)
Aha, finally I have discovered a use for mutt's %<strftime> expando.
You can optimize this one step further.
set index_format="./format_date.sh '%[%Y%m%d]' '%<%Y%m%d>' |"
#!/bin/sh
if [ $1 -eq $2 ]; then
echo "%4C %Z %{ %H:%M} %-15.15F (%?l?%4l&%4c?) %?H?[%H]?%s%"
else
echo "%4C %Z %{%d.%m.%y} %-15.15F (%?l?%4l&%4c?) %?H?[%H]?%s%"
fi
A single exec per message now; that's as good as it gets without
patching mutt.
I 'stole' %<strftime> for my nested_if patch because it looked
completely useless, so if you happen to be using nested_if, this latter
version won't work. Now that I see a purpose for %<...> I'll have to
revisit nested_if. (Unfortunately all the paired symbols are used
already.)
--
David Champion * [email protected] * IT Services * University of Chicago
