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[etc/neomutt.git] / .config / neomutt / 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 if [ -z "${__RLWRAPPED:-}" ] && [ -x $(command -v rlwrap) ]; then
13   __RLWRAPPED=true exec rlwrap "$0" "$@"
14 fi
15
16 printf 'Enter new subject: ' >/dev/tty
17 read subj </dev/tty
18
19 if [ -z "${subj:-}" ]; then
20   echo No subject specified. >&2
21   exit 1
22 fi
23
24 SED_DELIM=,
25 subj=$(echo "$subj" | sed -re "s\1a${SED_DELIM}\1a\\\&\1ag")
26
27 RE_REPLY='((re|aw|antwort)([[(]?[[:digit:]]+[)]]?)?):[[:space:]]*'
28 RE_SUBJ_PREFIX="^Subject:[[:space:]]*(${RE_REPLY})*"
29 RE_SUBJ='.*'
30 EDITOR="sed -i -re \"s${SED_DELIM}(${RE_SUBJ_PREFIX})${RE_SUBJ}${SED_DELIM}\\\1$subj${SED_DELIM}i\""
31
32 printf "set editor='${EDITOR} %s'"