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  insteadOf = madduck:

add more flexible header manipulation
[etc/mutt.git] / .mutt / get-timestamp
1 #!/bin/sh
2 #
3 # get-timestamp - helper script to obtain a timestamp from the user
4 #
5 # Copyright © 2008 martin f. krafft <madduck@madduck.net>
6 # Released under the terms of the Artistic Licence 2.0
7 #
8 set -eu
9
10 printf 'When should I tickle you about this message? ' >/dev/tty
11 read timespec </dev/tty
12
13 case "$timespec" in
14   @[0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9]|*' '*)
15     date="$timespec";;
16   *[0-9]y) date="now + ${timespec%y} years 00:00";;
17   *[0-9]m) date="now + ${timespec%m} months 00:00";;
18   *[0-9]w) date="now + ${timespec%w} weeks 00:00";;
19   *[0-9]d) date="now + ${timespec%d} days 00:00";;
20   *[0-9]h) date="now + ${timespec%h} hours";;
21   *[!0-9]*) 
22     echo "E: invalid timespec: $timespec" >&2
23     exit 1
24     ;;
25   *) date="now + $timespec days 00:00";;
26 esac
27
28 exec date +'%s (%c)' -d "$date"