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# Match the age of a file, for use as a glob qualifer. Can
# take one or two arguments, which can be supplied by one of two
# ways (always the same for both arguments):
#
# print *(e:age 2006/10/04 2006/10/09:)
#
# Match all files modified between the start of those dates.
#
# print *(e:age 2006/10/04:)
#
# Match all files modified on that date. If the second argument is
# omitted it is taken to be exactly 24 hours after the first argument
# (even if the first argument contains a time).
#
# print *(e-age 2006/10/04:10:15 2006/10/04:10:45-)
#
# Supply times. All the time and formats handled by calendar_scandate
# are allowed, but whitespace must be quoted to ensure age receives
# the correct arguments.
#
# AGEREF1=2006/10/04:10:15
# AGEREF2=2006/10/04:10:45
# print *(+age)
#
# The same example using the other form of argument passing. The
# dates stay in effect until unset, but will be overridden if
# any argument is passed in the first format.
emulate -L zsh
zmodload -F zsh/stat b:zstat
zmodload -i zsh/parameter
autoload -U calendar_scandate
local -a vals
[[ -e $REPLY ]] || return 1
zstat -A vals +mtime $REPLY || return 1
if (( $# >= 1 )); then
local AGEREF=$1
# if 1 argument given, never use globally defined AGEREF2
local AGEREF2=$2
fi
integer mtime=$vals[1] date1 date2
local REPLY
# allow a time only (meaning today)
if calendar_scandate -t $AGEREF; then
date1=$REPLY
if [[ -n $AGEREF2 ]]; then
if [[ $AGEREF2 = +* ]]; then
calendar_scandate -rt $AGEREF2[2,-1] || return 1
(( date2 = date1 + REPLY ))
else
calendar_scandate -t $AGEREF2 || return 1
date2=$REPLY
fi
else
(( date2 = date1 + 24 * 60 * 60 ))
fi
(( date1 <= mtime && mtime <= date2 ))
else
return 1
fi
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