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maintain backup filter in header_cache dir
[etc/mutt.git] / .mutt / batch-subject-editor
1 #!/bin/sh
2 #
3 # batch-subject-editor - helper script to change subject lines with mutt
4 #
5 # Based on an idea by David Champion <dgc at uchicago.edu>
6 #
7 # Copyright © 2008 martin f. krafft <madduck@madduck.net>
8 # Released under the terms of the Artistic Licence 2.0
9 #
10 set -eu
11
12 printf 'Enter new subject: ' >/dev/tty
13 read subj </dev/tty
14
15 if [ -z "${subj:-}" ]; then
16   echo No subject specified. >&2
17   exit 1
18 fi
19
20 RE_REPLY='((re|aw|antwort)([[(]?[[:digit:]]+[)]]?)?):[[:space:]]*'
21 RE_SUBJ_PREFIX="^Subject:[[:space:]]*(${RE_REPLY})*"
22 RE_SUBJ='.*'
23 EDITOR="sed -i -re \"s,(${RE_SUBJ_PREFIX})${RE_SUBJ},\\\1$subj,i\""
24
25 printf "set editor='${EDITOR} %s'"