Use rlwrap for `T' action (mark messages interactively for a sequence) - anmhi - nmh(7) interface that (ab)uses less, lesskey, tmux and entr
 (HTM) hg clone https://bitbucket.org/iamleot/anmhi
 (DIR) Log
 (DIR) Files
 (DIR) Refs
 (DIR) README
       ---
 (DIR) changeset 9083582da781cb66c5ac090ea448803e3be5bc58
 (DIR) parent 0600bc264e71cd6948d00985ac848ab8c41a8727
 (HTM) Author: Leonardo Taccari <iamleot@gmail.com>
       Date:   Tue,  3 Jul 2018 02:13:57 
       
       Use rlwrap for `T' action (mark messages interactively for a sequence)
       
       If rlwrap is available generate a file with all the user defined
       sequences as ${MHTMPDIR}/${anmhi_sequences} and passes it to rlwrap
       via `-f' option.
       
       At the moment no cleanup is done after doing that and
       ${MHTMPDIR}/${anmhi_sequences} is always overwritten.
       
       Diffstat:
        TODO  |   2 --
        anmhi |  15 ++++++++++++++-
        2 files changed, 14 insertions(+), 3 deletions(-)
       ---
       diff -r 0600bc264e71 -r 9083582da781 TODO
       --- a/TODO      Tue Jul 03 01:36:00 2018 +0200
       +++ b/TODO      Tue Jul 03 02:13:57 2018 +0200
       @@ -6,5 +6,3 @@
          and `L' action.
        - Make the `fzy' dependency configurable via a variable (e.g. `dmenu'
          can be used instead.)
       -- When marking a sequence interactively, reuse rlwrap - if available -
       -  with the current sequences as history.
       diff -r 0600bc264e71 -r 9083582da781 anmhi
       --- a/anmhi     Tue Jul 03 01:36:00 2018 +0200
       +++ b/anmhi     Tue Jul 03 02:13:57 2018 +0200
       @@ -27,10 +27,12 @@
        # POSSIBILITY OF SUCH DAMAGE.
        #
        
       +: ${MHTMPDIR:=/tmp}
        
        anmhi_lesskey="$(mhpath +)/.lesskey"
        anmhi_mark_sequence="marked"
        anmhi_unseen_sequence="$(mhparam unseen-sequence)"
       +anmhi_sequences=".mhcurseqs"
        anmhi_scan_format='%<(cur)>%| %>%6(msg) %<(mymbox{from})%<{to}To: %13(unquote(decode(friendly{to})))%>%>%<(zero)%17(unquote(decode(friendly{from})))%> %3(day{date}) %3(month{date}) %02(mday{date}) %02(hour{date}):%02(min{date}) %(decode{subject})'
        anmhi_lines=$(stty size | cut -d ' ' -f 1)
        
       @@ -89,7 +91,18 @@
                       ;;
               T)
                       # Mark a message interactively asking for a sequence
       -               read sequence
       +               if which rlwrap; then
       +                       cd "${MHTMPDIR}"
       +                       mark -list |
       +                       grep -Ev "(cur|`mhparam unseen-sequence`)" |
       +                       cut -d ':' -f 1 > "${anmhi_sequences}"
       +                       clear
       +                       sequence=$(rlwrap -f "${anmhi_sequences}" -s 0 -o cat | tr -d '[:space:]')
       +                       cd -
       +               else
       +                       clear
       +                       read sequence
       +               fi
                       if [ "${sequence}" ]; then
                               mark -sequence "${sequence}"
                       fi