first complete version

.gitignore

@@ -1 +1,2 @@
 nmf
+.tags

src/awk/lastmessageinthread.awk

@@ -1,49 +0,0 @@
-BEGIN {
-  RS = "\x0c"
-  FS = "\n"
-}
-
-/^message}/ {
-  mheader = header
-  mpart = part
-  mparts = parts
-  level = 0
-  multipart = ""
-  header = ""
-  part = ""
-  parts = ""
-}
-/^header{/ {
-  header = $0
-}
-/^(part|attachment)}/ {
-  level--
-}
-/^(part|attachment){/ {
-  parts = sprintf("%s\n%"(2*level)"s%s", parts, "", substr($1, index($1, "ID")))
-  level++
-}
-# /^part{ ID: [[:digit:]]+, Content-type: multipart\/alternative/ {
-#   multipart = "alternative"
-# }
-# /^part{ ID: [[:digit:]]+, Content-type: multipart\/mixed/ {
-#   multipart = "mixed"
-# }
-/^part{ ID: [[:digit:]]+, Content-type: text\/plain/ {
-  part = $0
-}
-
-END {
-  split(mheader, a, "\n")
-  delete a[1]
-  # delete a[2]
-  for (line in a) {
-    print a[line]
-  }
-  split(mpart, a, "\n")
-  delete a[1]
-  for (line in a) {
-    print a[line]
-  }
-  print "Parts:"mparts
-}

src/awk/messageheader.awk

@@ -0,0 +1,13 @@
+BEGIN {
+  RS = "\x0c"
+  FS = "\n"
+}
+
+/^header{/ {
+  split($0, a, "\n")
+  delete a[1]
+  delete a[2]
+  for (line in a)
+    print a[line]
+  exit
+}

src/awk/messageparts.awk

@@ -0,0 +1,12 @@
+BEGIN {
+  RS = "\x0c"
+  FS = "\n"
+}
+
+/^(part|attachment)}/ {
+  level--
+}
+/^(part|attachment){/ {
+  printf "%"(2*level)"s%s\n", "", substr($1, index($1, "ID"))
+  level++
+}

src/awk/partnr.awk

@@ -0,0 +1,14 @@
+# Return the part number of the first text/plain part, or, if the variable
+# `html` is set, of the first text/html part.
+BEGIN {
+  RS = "\x0c"
+  FS = "\n"
+}
+
+/^part{.*Content-type: text\// {
+  match($1, "ID: ([[:digit:]]+).* Content-type: text/([[:alpha:]]+)", a)
+  if ((html && a[2] == "html") || (!html && a[2] == "plain")) {
+    print a[1]
+    exit
+  }
+}

src/main.sh

@@ -5,95 +5,379 @@ set -eu
 # Application info
 . "sh/info.sh"
 
+# helper functions
+. "sh/helper.sh"
+
+# tools
+. "sh/tools.sh"
+
+# Configuration
+. "sh/config.sh"
+
 # Theme
 . "sh/theme.sh"
 
 # awk scripts
 . "sh/awk.sh"
 
-# tools
+# query history
-. "sh/tools.sh"
-
-# history
 . "sh/history.sh"
 
-__notmuch_search() {
+# notmuch functions
-  $NOTMUCH search "$*" \
+. "sh/notmuch.sh"
-    | sed "s/^thread:\([[:xdigit:]]\+\)\s\+\([^[]\+\)\s\+\[\([^]]\+\)\]\([^;]*\); \(.*\) (\([^(]*\))$/${COLDATE}\2${COLRESET}\t${COLCNTS}\3${COLRESET}\t${COLFROM}\4${COLRESET}\t${COLSUBJ}\5${COLRESET}\t${COLTAGS}\6${COLRESET}\t\1/" \
-    | column -s "$(printf '\t')" -t -l 3 -R 1,2
-}
 
-__notmuch_thread() {
+# list generators
-  $NOTMUCH show thread:"$1" \
+. "sh/lists.sh"
-    | awk "$AWK_THREADOVERVIEW" \
-    | sed "s/^\(\S*\)\t\([^\t]*\)\t\(.*\) (\([^()]*\)) (\([^()]*\))$/${COLFROM}\3${COLRESET}\t${COLSUBJ}\2${COLRESET}\t${COLDATE}\4${COLRESET}\t${COLTAGS}\5${COLRESET}\t\1/"
-}
 
-__notmuch_list_tags() {
+# preview functions
-  $NOTMUCH search --output=tags tag:/./
+. "sh/preview.sh"
-}
 
-__notmuch_list_address() {
+# varia functions
-  $NOTMUCH address '*'
+. "sh/varia.sh"
-}
 
+# tags
+. "sh/tags.sh"
+
+# keys
+. "sh/keys.sh"
+
+# send emails
+. "sh/send.sh"
+
+if [ "${1:-}" = "--list-threads" ]; then
+  shift
+  nmquery="$1"
+  list_threads "$nmquery"
+  exit
+fi
+
+if [ "${1:-}" = "--list-messages-in-thread" ]; then
+  shift
+  thread="$1"
+  list_messages_in_thread "$thread"
+  exit
+fi
 
 if [ "${1:-}" = "--preview-thread" ]; then
   shift
-  thread="$1"
+  threadid="$1"
-  $NOTMUCH show thread:$thread \
+  preview_message "thread" "$threadid"
-    | awk "$AWK_LASTMESSAGEINTHREAD" \
+  exit
-    | tail -n +2 \
+fi
-    | $CAT
+
+if [ "${1:-}" = "--preview-html-thread" ]; then
+  shift
+  threadid="$1"
+  preview_message "thread" "$threadid" "html"
   exit
 fi
 
 if [ "${1:-}" = "--preview-message" ]; then
   shift
   messageid="$1"
-  $NOTMUCH show id:$messageid \
+  preview_message "id" "$messageid"
-    | awk "$AWK_LASTMESSAGEINTHREAD" \
+  exit
-    | tail -n +2 \
+fi
-    | $CAT
+
+if [ "${1:-}" = "--preview-html-message" ]; then
+  shift
+  messageid="$1"
+  preview_message "id" "$messageid" "html"
   exit
 fi
 
 if [ "${1:-}" = "--view-source" ]; then
   shift
   messageid="$1"
-  less $($NOTMUCH search --output=files id:$messageid)
+  $NOTMUCH show --part=0 id:"$messageid" | $CATEMAIL | less
   exit
 fi
 
-# FZF default configs
+if [ "${1:-}" = "--show-message-parts" ]; then
+  shift
+  messageid="$1"
+  nm_message_parts "$messageid"
+  exit
+fi
+
+# FZF defaults
 FZF_DEFAULT_PREVIEW_WINDOW="right,80,border-line,wrap-word"
 FZF_ALTERNATE_PREVIEW_WINDOW="bottom,80%,border-line,wrap-word"
 FZF_DEFAULT_THREAD_LINE="{1}  {3} ({4})"
 
+if [ "${1:-}" = "--open-part" ]; then
+  shift
+  messageid="$1"
+  res=$(nm_message_parts "$messageid" | awk '{print NR"\t"$0}' | $FZF \
+    --raw \
+    --reverse \
+    --wrap=word \
+    --delimiter="$(printf '\t')" \
+    --with-nth=2 \
+    --accept-nth=1 \
+    --margin='30%' \
+    --bind='change:best' \
+    --bind="$KEYS_DOWN_HP:half-page-down" \
+    --bind="$KEYS_UP_HP:half-page-up" \
+    --bind="$KEYS_ENTER:accept" \
+    --bind="$KEYS_BACK,$KEYS_CANCEL,backward-eof:abort" || true)
+  [ "$res" ] || exit
+  tmpfile=$(mktemp)
+  nm_message_get_part "$messageid" "$res" > "$tmpfile"
+  if ynprompt "Are you sure you want to open this file?" "$(ls -lh "$tmpfile")\n$(file -b "$tmpfile")"; then
+    # TODO: should we clean up at some point?
+    open "$tmpfile" >/dev/null 2>/dev/stdout
+  fi
+  exit
+fi
+
+if [ "${1:-}" = "--archive" ]; then
+  shift
+  [ "$1" = "thread" ] && thread=1
+  shift
+  [ "${thread:-}" ] && field="thread" || field="id"
+  query="$(echo " $@" | sed "s/\s\(\S\)/ $field:\1/g")"
+  tagmod="$(echo " $TAG_INBOX $TAGS_NEW" | sed "s/\s\(\S\)/ -\1/g")"
+  $NOTMUCH tag $tagmod "$query"
+  exit
+fi
+
+if [ "${1:-}" = "--delete" ]; then
+  shift
+  [ "$1" = "thread" ] && thread=1
+  shift
+  [ "${thread:-}" ] && field="thread" || field="id"
+  query="$(echo " $@" | sed "s/\s\(\S\)/ $field:\1/g")"
+  $NOTMUCH tag -$TAG_INBOX +$TAG_DEL "$query"
+  exit
+fi
+
+if [ "${1:-}" = "--undelete" ]; then
+  shift
+  query="$(echo " $@" | sed "s/\s\(\S\)/ thread:\1/g")"
+  $NOTMUCH tag -$TAG_DEL "$query"
+  exit
+fi
+
+if [ "${1:-}" = "--flag" ]; then
+  shift
+  [ "$1" = "thread" ] && thread=1
+  shift
+  [ "${thread:-}" ] && field="thread" || field="id"
+  query="$(echo " $@" | sed "s/\s\(\S\)/ $field:\1/g")"
+  $NOTMUCH tag +"$TAG_FLAGGED" "$query"
+  exit
+fi
+
+if [ "${1:-}" = "--unflag" ]; then
+  shift
+  [ "$1" = "thread" ] && thread=1
+  shift
+  [ "${thread:-}" ] && field="thread" || field="id"
+  query="$(echo " $@" | sed "s/\s\(\S\)/ $field:\1/g")"
+  $NOTMUCH tag -"$TAG_FLAGGED" "$query"
+  exit
+fi
+
+
+if [ "${1:-}" = "--purge" ]; then
+  shift
+  # query="$(echo " $@" | sed "s/\s\(\S*\)/ (thread:\1 and tag:del)/g" | sed 's/)\(\s\+\)(/) or (/g')"
+  query="tag:$TAG_DEL and ("$(echo " $@" | sed "s/\s\(\S\)/ thread:\1/g")")"
+  files=$(nm_files_all "$query")
+  if ynprompt "Are you sure you want to purge these files?" "$files"; then
+    echo -n "$files" | xargs -d "\n" rm
+    nm_new
+  fi
+  exit
+fi
+
+if [ "${1:-}" = "--tag-modify" ]; then
+  shift
+  [ "$1" = "thread" ] && thread=1
+  shift
+  [ "$1" = "add" ] && sign=+ || sign=-
+  shift
+  [ "${thread:-}" ] && field="thread" || field="id"
+  query="$(echo " $@" | sed "s/\s\(\S\)/ $field:\1/g")"
+  if [ "$sign" = "+" ]; then
+    tagquery=""
+    label_text="Add tag"
+  else
+    tagquery="$query"
+    label_text="Remove tag"
+  fi
+  res=$(list_tags "$tagquery" | $FZF \
+    --color="border:$ANSICOLORTAGS" \
+    --color="label:$ANSICOLORTAGS" \
+    --tac \
+    --bind="$KEYS_DOWN_HP:half-page-down" \
+    --bind="$KEYS_UP_HP:half-page-up" \
+    --bind="$KEYS_BACK,$KEYS_CANCEL,backward-eof:abort" \
+    --bind="$KEYS_ENTER:accept-or-print-query" \
+    --bind="$KEYS_ENTER_ALTERNATIVE:transform:echo \"print(\$FZF_QUERY)+accept\"" \
+    --margin='20%' \
+    --border=double \
+    --border-label="  $label_text  " | head -1 || true)
+  [ "$res" ] || exit
+  $NOTMUCH tag $sign$res "$query"
+  exit
+fi
+
+
 if [ "${1:-}" = "--show-thread" ]; then
   shift
   thread="$1"
-  res=$(__notmuch_thread "$thread" | fzf \
+  res=$(list_messages_in_thread "$thread" | $FZF \
     --raw \
-    --ansi \
     --reverse \
     --multi \
     --delimiter="$(printf '\t')" \
     --with-nth="$FZF_DEFAULT_THREAD_LINE" \
-    --bind="alt-s:change-with-nth({1}  {2} {3} ({4})|$FZF_DEFAULT_THREAD_LINE)" \
     --accept-nth=5 \
-    --bind='alt-j:preview-down,alt-k:preview-up' \
+    --bind="$KEYS_CANCEL:transform:[ \$FZF_SELECT_COUNT -gt 0 ] && echo clear-multi || echo abort" \
-    --bind='ctrl-d:half-page-down,ctrl-u:half-page-up' \
+    --bind="$KEYS_PREVIEW_DOWN:preview-down" \
-    --bind='page-up:preview-half-page-up,page-down:preview-half-page-down' \
+    --bind="$KEYS_PREVIEW_UP:preview-up" \
-    --bind="enter:" \
+    --bind="$KEYS_PREVIEW_DOWN_HP:preview-half-page-down" \
-    --bind="ctrl-h,backward-eof:abort" \
+    --bind="$KEYS_PREVIEW_UP_HP:preview-half-page-up" \
-    --bind="alt-/:change-preview-window($FZF_ALTERNATE_PREVIEW_WINDOW|$FZF_DEFAULT_PREVIEW_WINDOW)" \
+    --bind="$KEYS_CYCLE_DISPLAY:change-with-nth({1}  {2} {3} ({4})|$FZF_DEFAULT_THREAD_LINE)" \
-    --bind="alt-v:execute:$0 --view-source {5}" \
+    --bind="$KEYS_DOWN_HP:half-page-down" \
+    --bind="$KEYS_UP_HP:half-page-up" \
+    --bind="$KEYS_ENTER:" \
+    --bind="$KEYS_BACK,$KEYS_CANCEL,backward-eof:abort" \
+    --bind="$KEYS_PREVIEW_TOGGLE_SIZE:change-preview-window($FZF_ALTERNATE_PREVIEW_WINDOW|$FZF_DEFAULT_PREVIEW_WINDOW)" \
+    --bind="$KEYS_VIEW_SOURCE:execute:$0 --view-source {5}" \
+    --bind="$KEYS_HTML_PREVIEW:change-preview:$0 --preview-html-message {5}" \
+    --bind="$KEYS_TAG_ADD:execute($0 --tag-modify message add {+5})+reload:$0 --list-messages-in-thread \"$thread\"" \
+    --bind="$KEYS_TAG_REMOVE:execute($0 --tag-modify message del {+5})+reload:$0 --list-messages-in-thread \"$thread\"" \
+    --bind="$KEYS_ARCHIVE:execute($0 --archive message {+5})+reload:$0 --list-messages-in-thread \"$thread\"" \
+    --bind="$KEYS_DELETE:execute($0 --delete message {+5})+reload:$0 --list-messages-in-thread \"$thread\"" \
+    --bind="$KEYS_OPEN:execute:$0 --open-part {5}" \
+    --bind="$KEYS_FLAG:execute($0 --flag message {+5})+reload:$0 --list-messages-in-thread \"$thread\"" \
+    --bind="$KEYS_UNFLAG:execute($0 --unflag message {+5})+reload:$0 --list-messages-in-thread \"$thread\"" \
+    --bind="$KEYS_REPLY:execute:$0 --reply {5}" \
+    --bind="$KEYS_VIEW_LOGS:execute:$0 --view-logs" \
+    --bind="$KEYS_COMPOSE:execute:$0 --compose" \
+    --bind="focus:change-preview($0 --preview-message {5})+transform-footer:printf '\033[4mMesssage parts\033[0m\n';$0 --show-message-parts {5}" \
     --preview="$0 --preview-message {5}" \
     --preview-window="$FZF_DEFAULT_PREVIEW_WINDOW" || true)
   exit
 fi
 
+if [ "${1:-}" = "--list-deleted" ]; then
+  shift
+  list_threads "tag:$TAG_DEL" | $FZF \
+    --header-first \
+    --margin='5%' \
+    --header='DELETED MESSAGES' \
+    --footer="$KEYS_PURGE_ALL: purge ALL threads / $KEYS_DELETE: purge selected threads / $KEYS_ENTER_ALTERNATIVE: undelete selected threads" \
+    --border='double' \
+    --color="header:red:bold:underline,border:red,selected-bg:88" \
+    --tiebreak=index \
+    --reverse \
+    --multi \
+    --delimiter="$(printf '\t')" \
+    --with-nth='{1}  {2} ({3})' \
+    --bind="$KEYS_CANCEL:transform:[ \$FZF_SELECT_COUNT -gt 0 ] && echo clear-multi || echo abort" \
+    --bind="$KEYS_DOWN_HP:half-page-down" \
+    --bind="$KEYS_UP_HP:half-page-up" \
+    --bind="$KEYS_ENTER:" \
+    --bind="$KEYS_PURGE_ALL:select-all+execute($0 --purge {+4})+reload:$0 --list-threads \"tag:$TAG_DEL\"" \
+    --bind="$KEYS_DELETE:execute($0 --purge {+4})+reload:$0 --list-threads \"tag:$TAG_DEL\"" \
+    --bind="$KEYS_ENTER_ALTERNATIVE:execute($0 --undelete {+4})+reload:$0 --list-threads \"tag:$TAG_DEL\"" \
+    --bind="$KEYS_VIEW_LOGS:execute:$0 --view-logs"
+  exit
+fi
+
+if [ "${1:-}" = "--compose" ]; then
+  label_text="  Select sender  "
+  address=$(list_addresses | $FZF \
+    --delimiter="$(printf '\t')" \
+    --with-nth=2 \
+    --accept-nth=1 \
+    --color="label:$ANSICOLORFROM" \
+    --tiebreak=index \
+    --margin='20%' \
+    --bind="$KEYS_DOWN_HP:half-page-down" \
+    --bind="$KEYS_UP_HP:half-page-up" \
+    --bind="$KEYS_ENTER:accept-or-print-query" \
+    --bind="$KEYS_ENTER_ALTERNATIVE:transform:echo \"print(\$FZF_QUERY)+accept\"" \
+    --bind="$KEYS_CANCEL:print()+accept" \
+    --border=double \
+    --border-label="$label_text" | head -1 || true)
+  tmpfile=$(mktemp --suffix='.eml')
+  {
+    echo "From: $PRIMARY_NAME <$PRIMARY_EMAIL>"
+    echo "To: $address"
+    echo "Cc: "
+    echo "Subject: "
+    echo ""
+    echo "Message body goes here"
+  } > "$tmpfile"
+  $EDITOR "$tmpfile"
+  # Confirm and send
+  send "$tmpfile"
+  rm -f "$tmpfile"
+  exit
+fi
+
+if [ "${1:-}" = "--reply" ]; then
+  shift
+  messageid="$1"
+  tmpfile=$(mktemp --suffix='.eml')
+  $NOTMUCH reply id:"$messageid" > "$tmpfile"
+  $EDITOR "$tmpfile"
+  # Confirm and send
+  send "$tmpfile"
+  rm -f "$tmpfile"
+  exit
+fi
+
+if [ "${1:-}" = "--sync" ]; then
+  $NOTMUCH new && $MBSYNC -a && $NOTMUCH new
+  exit
+fi
+
+if [ "${1:-}" = "--send-test-email" ]; then
+  tmpfile=$(mktemp --suffix='.eml')
+  {
+    echo "From: $PRIMARY_NAME <$PRIMARY_EMAIL>"
+    echo "To: $PRIMARY_NAME <$PRIMARY_EMAIL>"
+    echo "Subject: Test E-Mail from $APP_NAME version $APP_VERSION"
+    echo ""
+    echo "This is a test email sent from from [$APP_NAME]($APP_WEBSITE)."
+  } > "$tmpfile"
+  send "$tmpfile" "force"
+  rm -f "$tmpfile"
+  exit
+fi
+
+if [ "${1:-}" = "--view-logs" ]; then
+  shift
+  printf "0 Send test message\n1 Close\n" |
+    $FZF \
+    --sync \
+    --bind='start:pos(2)' \
+    --bind='ctrl-c,ctrl-g,ctrl-q,esc:pos(2)+accept' \
+    --bind="enter:transform: [ {1} = 0 ] && $0 --send-test-email || echo accept" \
+    --reverse \
+    --no-input \
+    --header="Here are the latest SMTP logs" \
+    --preview-window='60%,border-line,wrap-word,follow,noinfo' \
+    --margin='5%,5%,5%,15%' \
+    --preview="tail -f \"$SMTPLOGFILE\" | $CATLOG" \
+    --with-nth=2.. \
+    --accept-nth=1 \
+    --header-border='line' \
+    --color='border:yellow,header:yellow' || true
+  exit
+fi
+
+# Set terminal title
+if [ "$SET_TERMINAL_TITLE" = "yes" ]; then
+  printf '\033]0;%s\007' "$WINDOW_TITLE"
+fi
+
 # Modes
 APPEND="append"
 NWSRCH="search"
@@ -102,66 +386,96 @@ ADDRESS_TO="to-"
 ADDRESS_FROM="from-"
 CMD_SEARCH_ADDRESS="address-"
 CMD_EDIT_QUERY="edit-query"
+CMD_GOTO_INBOX="go-to-inbox"
+CMD_GOTO_UNREAD="go-to-unread"
+CMD_GOTO_FLAGGED="go-to-flagged"
 
 while true; do
-  nmquery="${nmquery:-tag:inbox}"
+  nmquery="${nmquery:-tag:$TAG_INBOX}"
   [ "$(tail -1 "$NMFHIST")" = "$nmquery" ] || echo "$nmquery" >> "$NMFHIST"
-  cmd=$(__notmuch_search "$nmquery" | fzf \
+  cmd=$(list_threads "$nmquery" | $FZF \
+    --no-clear \
+    --header-first \
     --header="Query: $nmquery" \
-    --ansi \
     --tiebreak=index \
     --reverse \
     --multi \
     --delimiter="$(printf '\t')" \
     --with-nth="{1}  {2} ({3})" \
-    --bind="alt-t:print($CMD_SEARCH_TAG$NWSRCH)+accept" \
+    --bind="$KEYS_SEARCH_TAG_REPLCE:print($CMD_SEARCH_TAG$NWSRCH)+accept" \
-    --bind="alt-T:print($CMD_SEARCH_TAG$APPEND)+accept" \
+    --bind="$KEYS_SEARCH_TAG_APPEND:print($CMD_SEARCH_TAG$APPEND)+accept" \
-    --bind="alt-s:print($CMD_SEARCH_ADDRESS$ADDRESS_FROM$NWSRCH)+accept" \
+    --bind="$KEYS_SEARCH_FROM_REPLCE:print($CMD_SEARCH_ADDRESS$ADDRESS_FROM$NWSRCH)+accept" \
-    --bind="alt-S:print($CMD_SEARCH_ADDRESS$ADDRESS_FROM$APPEND)+accept" \
+    --bind="$KEYS_SEARCH_FROM_APPEND:print($CMD_SEARCH_ADDRESS$ADDRESS_FROM$APPEND)+accept" \
-    --bind="alt-r:print($CMD_SEARCH_ADDRESS$ADDRESS_TO$NWSRCH)+accept" \
+    --bind="$KEYS_SEARCH_TO_REPLCE:print($CMD_SEARCH_ADDRESS$ADDRESS_TO$NWSRCH)+accept" \
-    --bind="alt-R:print($CMD_SEARCH_ADDRESS$ADDRESS_TO$APPEND)+accept" \
+    --bind="$KEYS_SEARCH_TO_APPEND:print($CMD_SEARCH_ADDRESS$ADDRESS_TO$APPEND)+accept" \
-    --bind="alt-q:print($CMD_EDIT_QUERY)+accept" \
+    --bind="$KEYS_SEARCH_EDIT_QUERY:print($CMD_EDIT_QUERY)+accept" \
-    --bind='alt-j:preview-down,alt-k:preview-up' \
+    --bind="$KEYS_PREVIEW_DOWN:preview-down" \
-    --bind='ctrl-d:half-page-down,ctrl-u:half-page-up' \
+    --bind="$KEYS_PREVIEW_UP:preview-up" \
-    --bind='page-up:preview-half-page-up,page-down:preview-half-page-down' \
+    --bind="$KEYS_PREVIEW_DOWN_HP:preview-half-page-down" \
-    --bind="enter,ctrl-l:execute:$0 --show-thread {4}" \
+    --bind="$KEYS_PREVIEW_UP_HP:preview-half-page-up" \
-    --bind="alt-/:change-preview-window($FZF_ALTERNATE_PREVIEW_WINDOW|$FZF_DEFAULT_PREVIEW_WINDOW)" \
+    --bind="$KEYS_CANCEL:clear-multi" \
+    --bind="$KEYS_ENTER:execute($0 --show-thread {4})+reload:$0 --list-threads \"$nmquery\"" \
+    --bind="$KEYS_DOWN_HP:half-page-down" \
+    --bind="$KEYS_UP_HP:half-page-up" \
+    --bind="$KEYS_PREVIEW_TOGGLE_SIZE:change-preview-window($FZF_ALTERNATE_PREVIEW_WINDOW|$FZF_DEFAULT_PREVIEW_WINDOW)" \
+    --bind="$KEYS_HTML_PREVIEW:change-preview:$0 --preview-html-thread {4}" \
+    --bind="$KEYS_TAG_ADD:execute($0 --tag-modify thread add {+4})+reload:$0 --list-threads \"$nmquery\"" \
+    --bind="$KEYS_TAG_REMOVE:execute($0 --tag-modify thread del {+4})+reload:$0 --list-threads \"$nmquery\"" \
+    --bind="$KEYS_ARCHIVE:execute($0 --archive thread {+4})+reload:$0 --list-threads \"$nmquery\"" \
+    --bind="$KEYS_DELETE:execute($0 --delete thread {+4})+reload:$0 --list-threads \"$nmquery\"" \
+    --bind="$KEYS_FLAG:execute($0 --flag thread {+4})+reload:$0 --list-threads \"$nmquery\"" \
+    --bind="$KEYS_UNFLAG:execute($0 --unflag thread {+4})+reload:$0 --list-threads \"$nmquery\"" \
+    --bind="$KEYS_SEARCH_DELETED:execute:$0 --list-deleted" \
+    --bind="$KEYS_SEARCH_INBOX:print($CMD_GOTO_INBOX)+accept" \
+    --bind="$KEYS_SEARCH_UNREAD:print($CMD_GOTO_UNREAD)+accept" \
+    --bind="$KEYS_SEARCH_FLAGGED:print($CMD_GOTO_FLAGGED)+accept" \
+    --bind="$KEYS_VIEW_LOGS:execute:$0 --view-logs" \
+    --bind="$KEYS_SYNC:execute($0 --sync)+reload:$0 --list-threads \"$nmquery\"" \
+    --bind="$KEYS_COMPOSE:execute:$0 --compose" \
+    --bind="focus:change-preview:$0 --preview-thread {4}" \
     --preview="$0 --preview-thread {4}" \
     --preview-window="$FZF_DEFAULT_PREVIEW_WINDOW" | head -1 || true)
   [ -n "$cmd" ] || exit 0
   case "$cmd" in
     $CMD_SEARCH_TAG*)
-      tag=$(__notmuch_list_tags | fzf \
+      tag=$(list_tags | $FZF \
-	--ansi \
+	--color="border:$ANSICOLORTAGS" \
-	--cycle \
+	--color="label:$ANSICOLORTAGS" \
-	--bind='ctrl-d:half-page-down,ctrl-u:half-page-up' \
+	--tac \
 	--margin='20%' \
-	--bind='enter:accept-or-print-query' \
+	--bind="$KEYS_DOWN_HP:half-page-down" \
+	--bind="$KEYS_UP_HP:half-page-up" \
+	--bind="$KEYS_ENTER:accept-or-print-query" \
+	--bind="$KEYS_ENTER_ALTERNATIVE:transform:echo \"print(\$FZF_QUERY)+accept\"" \
 	--border=double \
-	--border-label='Select tag' || true)
+	--border-label="  Select tag  " | head -1 || true)
       [ -n "$tag" ] || continue
       [ "$cmd" = "$CMD_SEARCH_TAG$APPEND" ] && nmquery="$nmquery and tag:$tag" || nmquery="tag:$tag"
       ;;
     $CMD_SEARCH_ADDRESS*)
       case "$cmd" in
 	*$ADDRESS_FROM*)
-	  label_text='Select sender'
+	  label_text="  Select sender  "
 	  field='from'
 	  ;;
 	*)
-	  label_text='Select recipient'
+	  label_text="  Select recipient  "
 	  field='to'
 	  ;;
       esac
-      address=$(__notmuch_list_address | fzf \
+      address=$(list_addresses | $FZF \
-	--ansi \
+	--delimiter="$(printf '\t')" \
+	--with-nth=2 \
+	--accept-nth=1 \
+	--color="label:$ANSICOLORFROM" \
 	--tiebreak=index \
-	--cycle \
-	--bind='ctrl-d:half-page-down,ctrl-u:half-page-up' \
 	--margin='20%' \
-	--bind='enter:accept-or-print-query' \
+	--bind="$KEYS_DOWN_HP:half-page-down" \
+	--bind="$KEYS_UP_HP:half-page-up" \
+	--bind="$KEYS_ENTER:accept-or-print-query" \
+	--bind="$KEYS_ENTER_ALTERNATIVE:transform:echo \"print(\$FZF_QUERY)+accept\"" \
 	--border=double \
-	--border-label="$label_text" || true)
+	--border-label="$label_text" | head -1 || true)
       [ -n "$address" ] || continue
       case "$cmd" in
 	*$APPEND)
@@ -173,19 +487,25 @@ while true; do
       esac
       ;;
     $CMD_EDIT_QUERY*)
-      nmquery=$(fzf \
+      nmquery=$(list_query_history | $FZF \
-	--ansi \
+	--color="border:$ANSICOLORSUBJ" \
+	--color="label:$ANSICOLORSUBJ" \
 	--tac \
-	--bind='ctrl-d:half-page-down,ctrl-u:half-page-up' \
 	--margin='20%' \
 	--query="$nmquery" \
 	--disabled \
 	--print-query \
 	--prompt="Query: " \
 	--bind='focus:replace-query' \
+	--bind="$KEYS_DOWN_HP:half-page-down" \
+	--bind="$KEYS_UP_HP:half-page-up" \
+	--bind="$KEYS_ENTER:accept" \
 	--border=double \
-	--border-label='Query history' < "$NMFHIST" | head -1 || true)
+	--border-label='  Query history  ' | head -1 || true)
       ;;
+    $CMD_GOTO_INBOX) nmquery="tag:$TAG_INBOX" ;;
+    $CMD_GOTO_UNREAD) nmquery="tag:$TAG_UNREAD" ;;
+    $CMD_GOTO_FLAGGED) nmquery="tag:$TAG_FLAGGED" ;;
     *)
       ;;
   esac

src/sh/awk.sh

@@ -1,11 +1,4 @@
 if [ ! "${AWK_LOADED:-}" ]; then
-  AWK_LASTMESSAGEINTHREAD=$(
-    cat <<'EOF'
-@@include awk/lastmessageinthread.awk
-EOF
-  )
-  export AWK_LASTMESSAGEINTHREAD
-
   AWK_THREADOVERVIEW=$(
     cat <<'EOF'
 @@include awk/threadoverview.awk
@@ -13,5 +6,26 @@ EOF
   )
   export AWK_THREADOVERVIEW
 
+  AWK_MESSAGEHEADER=$(
+    cat <<'EOF'
+@@include awk/messageheader.awk
+EOF
+  )
+  export AWK_MESSAGEHEADER
+
+  AWK_MESSAGEPARTS=$(
+  cat <<'EOF'
+@@include awk/messageparts.awk
+EOF
+  )
+  export AWK_MESSAGEPARTS
+
+  AWK_PARTNR=$(
+  cat <<'EOF'
+@@include awk/partnr.awk
+EOF
+  )
+  export AWK_PARTNR
+
   export AWK_LOADED=1
 fi

src/sh/config.sh

@@ -0,0 +1,26 @@
+if [ ! "${CONFIG_LOADED:-}" ]; then
+  # Main application configuration. This application does not require a
+  # configuration file. However, a configuration file may be stored as
+  # `CONFIGFILE_DEFAULT`. If that file exists, it will be sourced. The path to
+  # the file may be overwritten by specifying the environment variable
+  # `CONFIGFILE`. If a configuration file is specified, then it must also exist.
+  # A configuration file comprises the specification of environment variables
+  # that are allowed to be set.
+  CONFIGFILE_DEFAULT="${XDG_CONFIG_HOME:-"$HOME/.config"}/$APP_NAME/config"
+  CONFIGFILE="${CONFIGFILE:-"$CONFIGFILE_DEFAULT"}"
+  [ "$CONFIGFILE" != "$CONFIGFILE_DEFAULT" ] && [ ! -f "$CONFIGFILE" ] && err "The configuration file manually specified with the environment variable CONFIGFILE=($CONFIGFILE) does not exist." && exit 1
+  [ -f "$CONFIGFILE" ] && . "$CONFIGFILE"
+  SET_TERMINAL_TITLE="${SET_TERMINAL_TITLE:-yes}"
+
+  PRIMARY_NAME=${PRIMARY_NAME:-$($NOTMUCH config get user.name)}
+  PRIMARY_EMAIL=${PRIMARY_EMAIL:-$($NOTMUCH config get user.primary_email)}
+
+  if [ ! "${SMTPLOGFILE:-}" ]; then
+    SMTPLOGFILE=$(mktemp)
+    trap 'rm -f "$SMTPLOGFILE"' EXIT INT
+  fi
+
+  export PRIMARY_NAME PRIMARY_EMAIL SET_TERMINAL_TITLE SMTPLOGFILE
+
+  export CONFIG_LOADED=1
+fi

src/sh/helper.sh

@@ -0,0 +1,5 @@
+# Print error message
+err() {
+  echo "$APP_NAME ERROR: $1" > /dev/stderr
+}
+

src/sh/history.sh

@@ -2,5 +2,6 @@ if [ ! "${HISTORY_LOADED:-}" ]; then
   export NMFHIST=$(mktemp)
   touch "$NMFHIST"
   trap 'rm -f "$NMFHIST"' EXIT INT
+
   export HISTORY_LOADED=1
 fi

src/sh/keys.sh

@@ -0,0 +1,63 @@
+if [ ! "${KEYS_LOADED:-}" ]; then
+  # This file defines the keys used in the keybindings
+  # The keys are comma separated. See `fzf --man` for the possible keys.
+
+  # List
+  KEYS_DOWN_HP="ctrl-d"
+  KEYS_UP_HP="ctrl-u"
+  KEYS_BACK="ctrl-h"
+  KEYS_ENTER="enter,ctrl-l"
+  KEYS_CANCEL="esc"
+  KEYS_ENTER_ALTERNATIVE="alt-enter"
+  KEYS_CYCLE_DISPLAY="ctrl-space"
+
+  KEYS_VIEW_SOURCE="alt-v"
+  KEYS_HTML_PREVIEW="alt-h"
+  KEYS_TAG_ADD="alt-+"
+  KEYS_TAG_REMOVE="alt--"
+  KEYS_ARCHIVE="ctrl-a"
+  KEYS_DELETE="ctrl-delete"
+  KEYS_FLAG="ctrl-x"
+  KEYS_UNFLAG="ctrl-alt-x"
+  KEYS_OPEN="ctrl-o"
+  KEYS_REPLY="ctrl-r"
+  KEYS_COMPOSE="ctrl-n"
+  KEYS_VIEW_LOGS="alt-0"
+  KEYS_SYNC="ctrl-s"
+
+  # Preview window
+  KEYS_PREVIEW_DOWN="alt-j"
+  KEYS_PREVIEW_UP="alt-k"
+  KEYS_PREVIEW_DOWN_HP="page-up"
+  KEYS_PREVIEW_UP_HP="page-down"
+  KEYS_PREVIEW_TOGGLE_SIZE="alt-/"
+
+  # Keys specific to purge window
+  KEYS_PURGE_ALL="ctrl-alt-d"
+
+  # Change main views
+  KEYS_SEARCH_TAG_REPLCE="alt-t"
+  KEYS_SEARCH_TAG_APPEND="alt-T"
+  KEYS_SEARCH_FROM_REPLCE="alt-s"
+  KEYS_SEARCH_FROM_APPEND="alt-S"
+  KEYS_SEARCH_TO_REPLCE="alt-r"
+  KEYS_SEARCH_TO_APPEND="alt-R"
+  KEYS_SEARCH_EDIT_QUERY="alt-q"
+  KEYS_SEARCH_DELETED="alt-d"
+  KEYS_SEARCH_INBOX="alt-1"
+  KEYS_SEARCH_UNREAD="alt-2"
+  KEYS_SEARCH_FLAGGED="alt-3"
+
+  export KEYS_DOWN_HP KEYS_UP_HP KEYS_BACK KEYS_ENTER KEYS_CANCEL \
+    KEYS_ENTER_ALTERNATIVE KEYS_CYCLE_DISPLAY KEYS_VIEW_SOURCE \
+    KEYS_HTML_PREVIEW KEYS_TAG_ADD KEYS_TAG_REMOVE KEYS_ARCHIVE KEYS_DELETE \
+    KEYS_FLAG KEYS_UNFLAG KEYS_OPEN KEYS_REPLY KEYS_COMPOSE KEYS_VIEW_LOGS \
+    KEYS_SYNC KEYS_PREVIEW_DOWN KEYS_PREVIEW_UP KEYS_PREVIEW_DOWN_HP \
+    KEYS_PREVIEW_UP_HP KEYS_PREVIEW_TOGGLE_SIZE KEYS_SEARCH_TAG_REPLCE \
+    KEYS_SEARCH_TAG_APPEND KEYS_SEARCH_FROM_REPLCE KEYS_SEARCH_FROM_APPEND \
+    KEYS_SEARCH_TO_REPLCE KEYS_SEARCH_TO_APPEND KEYS_SEARCH_EDIT_QUERY \
+    KEYS_SEARCH_DELETED KEYS_SEARCH_INBOX KEYS_SEARCH_UNREAD \
+    KEYS_SEARCH_FLAGGED
+
+  export KEYS_LOADED=1
+fi

src/sh/lists.sh

@@ -0,0 +1,35 @@
+# These functions generate the lists that are fed into fzf
+
+# List the messages within a thread
+# @argument $1: thread id
+list_messages_in_thread() {
+  $NOTMUCH show --body=false thread:"$1" \
+    | awk "$AWK_THREADOVERVIEW" \
+    | sed "s/^\(\S*\)\t\([^\t]*\)\t\(.*\) (\([^()]*\)) (\([^()]*\))$/${COLFROM}\3${COLRESET}\t${COLSUBJ}\2${COLRESET}\t${COLDATE}\4${COLRESET}\t${COLTAGS}\5${COLRESET}\t\1/"
+}
+
+# List all threads that match a query
+# @argument $1: query
+list_threads() {
+  $NOTMUCH search "$1" \
+    | sed "s/^thread:\([[:xdigit:]]\+\)\s\+\([^[]\+\)\s\+\[\([^]]\+\)\]\([^;]*\); \(.*\) (\([^(]*\))$/${COLDATE}\2${COLRESET}\t${COLCNTS}\3${COLRESET}\t${COLFROM}\4${COLRESET}\t${COLSUBJ}\5${COLRESET}\t${COLTAGS}\6${COLRESET}\t\1/" \
+    | column -s "$(printf '\t')" -t -l 3 -R 1,2
+}
+
+# List all tags of matching entries. If not query is provided, all tags are
+# listed.
+# @argument $1: query (optional)
+list_tags() {
+  [ "${1:-}" ] && query="$1" || query="*"
+  $NOTMUCH search --output=tags "$query"
+}
+
+# List all email addresses
+list_addresses() {
+  $NOTMUCH address '*' | sed "s/^\(.*[^>]\) \?\(<.*>\)\?$/\1 \2\t${COLFROM}\1${COLRESET} ${COLSUBJ}\2${COLRESET}/"
+}
+
+# List query history
+list_query_history() {
+  cat "$NMFHIST"
+}

src/sh/notmuch.sh

@@ -0,0 +1,53 @@
+# Wrapper around notmuch
+
+# notmuch new
+# This is used for updating the notmuch database
+nm_new() {
+  $NOTMUCH new
+}
+
+# Print the message id of the last message within a thread.
+# @argument $1: thread id
+nm_last_message_in_thread() {
+  # TODO: We may be smarter here that just incorporating excluded messages
+  $NOTMUCH search --output=messages --sort=oldest-first --offset=-1 thread:"$1" | sed 's/^...//'
+}
+
+# Print the header of a message (with trailing empty line)
+# @argument $1: message id
+nm_message_header() {
+  $NOTMUCH show --body=false id:"$1" | awk "$AWK_MESSAGEHEADER"
+}
+
+# Print the message parts (with indents)
+# @argument $1: message id
+nm_message_parts() {
+  $NOTMUCH show --body=true id:"$1" | awk "$AWK_MESSAGEPARTS"
+}
+
+# Print the message part number for text/plain or text/html
+# @argument $1: message id
+# @argument $2: if set, then the html part number will be printed
+nm_message_part_nr() {
+  $NOTMUCH show --body=true id:"$1" | awk -v html="${2:-}" "$AWK_PARTNR"
+}
+
+# Print part of message
+# @argument $1: message id
+# @argument $2: part number
+nm_message_get_part() {
+  $NOTMUCH show --part="$2" id:"$1"
+}
+
+# Add/remove a tag
+# @argument $1: [+/-]tag
+# @argument $2: query
+nm_tag() {
+  $NOTMUCH tag "$1" "$2"
+}
+
+# Get all files, also of excluded matches
+# @argument $1: query
+nm_files_all() {
+  $NOTMUCH search --output=files --exclude=false "$1"
+}

src/sh/preview.sh

@@ -0,0 +1,21 @@
+# Preview functions
+
+# Preview email
+# If a thread identifier is given, then the last message in the thread is
+# shown. If the HTML flag is set, then the HTML message is parsed using pandoc.
+# This functions reverts to the HTML method if no HTML flag is set yet no
+# text/plain part is found.
+#
+# @argument $1: "id" or "thread"
+# @argument $2: message id or thread id
+# @argument #3: if set, then the HTML messages will be taken
+preview_message() {
+  [ "$1" = "id" ] && messageid="$2" || messageid="$(nm_last_message_in_thread "$2")"
+  parts="$(nm_message_parts "$messageid")"
+  html="${3:-}"
+  nr="$(nm_message_part_nr "$messageid" "$html")"
+  [ ! "$nr" ] && [ ! "$html" ] && html="html" && nr="$(nm_message_part_nr "$messageid" "html")"
+  [ "$html" ] && parser="$PANDOC" || parser="cat"
+  nm_message_header "$messageid" | $CATEMAIL
+  [ "$nr" ] && (nm_message_get_part "$messageid" "$nr" | $parser | $CATMD)
+}

src/sh/send.sh

@@ -0,0 +1,20 @@
+# Send email
+# @argument $1: Path to email file
+# @argument $2: if set, don't prompt the user (optional)
+send() {
+  if [ ! "${2:-}" ] && ! ynprompt "Do you want to send this email?" "$($CATEMAIL $tmpfile)"; then
+    return
+  fi
+  $MSMTP -t --read-envelope-from -X "$SMTPLOGFILE" < "$1" >/dev/null 2>&1 || true
+  log=$(tail -1 "$SMTPLOGFILE")
+  if [ "${2:-}" ] || echo -n "$log" | grep -q '\bsmtpstatus=250\b'; then
+    return
+  fi
+  # Handle errors
+  res=$(printf "0 Retry\n1 Edit email\n2 Abort\n" | multiprompt "Could not send the email. What's next?" "$(echo "$log" | $CATLOG)")
+  case "$res" in
+    0) send "$1" ;;
+    1) $EDITOR "$1"; send "$1" ;;
+    2) return ;;
+  esac
+}

src/sh/tags.sh

@@ -0,0 +1,25 @@
+if [ ! "${TAGS_LOADED:-}" ]; then
+  # Default tags
+
+  # The deleted tag is by default the first tag defined in the exclude settings.
+  # If that does not exist, then it is "deleted".
+  TAG_DEL=${TAG_DEL:-$($NOTMUCH config get search.exclude_tags|head -1)}
+  TAG_DEL=${TAG_DEL:-deleted}
+
+  # Tag for messages in the inbox
+  TAG_INBOX=${TAG_INBOX:-inbox}
+
+  # White-space separates list of tags that are automatically added to new
+  # emails. These tags will be removed when the message/tread is archived.
+  TAGS_NEW=${TAGS_NEW:-$($NOTMUCH config get new.tags | xargs echo)}
+
+  # Tag for messages that are unread
+  TAG_UNREAD=${TAG_UNREAD:-unread}
+  
+  # Tag for flagged messages
+  TAG_FLAGGED=${TAG_FLAGGED:-flagged}
+
+  export TAG_DEL TAG_INBOX TAGS_NEW TAG_UNREAD TAG_FLAGGED
+
+  export TAGS_LOADED=1
+  fi

src/sh/theme.sh

@@ -1,12 +1,18 @@
 # Default theme
 if [ ! "${THEME_LOADED:-}" ]; then
-  COLDATE="$(printf '\033[38;5;195m')"
+  ANSICOLORDATE="${ANSICOLORDATE:-195}"
-  COLCNTS="$(printf '\033[38;5;244m')"
+  ANSICOLORCNTS="${ANSICOLORCNTS:-244}"
-  COLFROM="$(printf '\033[38;5;208m')"
+  ANSICOLORFROM="${ANSICOLORFROM:-208}"
-  COLSUBJ="$(printf '\033[38;5;179m\033[3m')"
+  ANSICOLORSUBJ="${ANSICOLORSUBJ:-179}"
-  COLTAGS="$(printf '\033[38;5;106m\033[2m')"
+  ANSICOLORTAGS="${ANSICOLORTAGS:-106}"
+  COLDATE="$(printf '\033[38;5;%sm' "$ANSICOLORDATE")"
+  COLCNTS="$(printf '\033[38;5;%sm' "$ANSICOLORCNTS")"
+  COLFROM="$(printf '\033[38;5;%sm' "$ANSICOLORFROM")"
+  COLSUBJ="$(printf '\033[38;5;%sm\033[3m' "$ANSICOLORSUBJ")"
+  COLTAGS="$(printf '\033[38;5;%sm\033[2m' "$ANSICOLORTAGS")"
   COLRESET="$(printf '\033[0m')"
 
+  export ANSICOLORDATE ANSICOLORCNTS ANSICOLORFROM ANSICOLORSUBJ ANSICOLORTAGS
   export COLDATE COLCNTS COLFROM COLSUBJ COLTAGS COLRESET
 
   export THEME_LOADED=1

src/sh/tools.sh

@@ -1,6 +1,6 @@
 if [ ! "${TOOLS_LOADED:-}" ]; then
   if command -v "fzf" >/dev/null; then
-    FZF="fzf --black --ansi --cycle --tiebreak=chunk,index"
+    FZF="fzf --black --ansi --cycle --info=inline-right"
   else
     err "Did not find the command-line fuzzy finder fzf."
     exit 1
@@ -15,14 +15,40 @@ if [ ! "${TOOLS_LOADED:-}" ]; then
   fi
   export NOTMUCH
 
+  if command -v "msmtp" >/dev/null; then
+    MSMTP="msmtp"
+  else
+    err "Did not find the command-line email sender msmtp."
+    exit 1
+  fi
+  export MSMTP
+
+  if command -v "mbsync" >/dev/null; then
+    MBSYNC="mbsync"
+  else
+    err "Did not find the command-line IMAP synchronizer mbsync."
+    exit 1
+  fi
+  export MBSYNC
+
   if command -v "bat" >/dev/null; then
     CAT="bat"
   elif command -v "batcat" >/dev/null; then
     CAT="batcat"
   fi
-  CAT=${CAT:+$CAT -l email --style=plain --color=always --wrap}
+  CATEMAIL=${CAT:+$CAT -l email --style=plain --color=always}
-  CAT=${CAT:-cat}
+  CATMD=${CAT:+$CAT -l markdown --style=plain --color=always}
-  export CAT
+  CATLOG=${CAT:+$CAT -l log --style=plain --color=always}
+  CATEMAIL=${CATEMAIL:-cat}
+  CATMD=${CATMD:-cat}
+  CATLOG=${CATLOG:-cat}
+  export CATEMAIL CATMD CATLOG
+
+  if command -v "pandoc" >/dev/null; then
+    PANDOC="pandoc --from html --to markdown_strict-raw_html"
+  fi
+  PANDOC=${PANDOC:-cat}
+  export PANDOC
 
   export TOOLS_LOADED=1
 fi

src/sh/varia.sh

@@ -0,0 +1,59 @@
+# Various functions
+
+# This prompts the user for a "yes" or a "no"
+# @argument $1: Question
+# @argument $2: Content to show in preview window
+# @return: 0 if the user answered "yes" and 1 otherwise.
+ynprompt() {
+  return $(printf '0 \033[32myes\033[0m\n1 \033[31mno\033[0m\n' |
+    $FZF \
+    --sync \
+    --bind='start:pos(2)' \
+    --bind='ctrl-c,ctrl-g,ctrl-q,esc:pos(2)+accept' \
+    --reverse \
+    --no-input \
+    --header="$1" \
+    --preview-window='60%,border-line' \
+    --margin='5%,5%,5%,15%' \
+    --preview="echo \"$2\"" \
+    --with-nth=2.. \
+    --accept-nth=1 \
+    --header-border='line' \
+    --color='border:yellow,header:yellow')
+}
+
+# This prompts the user for a series of options.
+# The options are read from stdin in the form "integer\toption\n".
+# Prints number
+#
+# @argument $1: Question
+# @argument $2: Content to show in preview window
+multiprompt() {
+  cat |
+    $FZF \
+    --reverse \
+    --no-input \
+    --header="$1" \
+    --preview-window='60%,border-line,wrap-word' \
+    --margin='5%,5%,5%,15%' \
+    --preview="echo \"$2\"" \
+    --with-nth=2.. \
+    --accept-nth=1 \
+    --header-border='line' \
+    --bind="ctrl-c,esc,ctrl-q:" \
+    --color='border:yellow,header:yellow' | head -1 || true
+}
+
+# ASCII-encode address
+# asciiaddress() {
+#   firstword=1
+#   for word in $*; do
+#     [ "${firstword:-}" ] || echo -n ' ' && firstword=
+#     case $word in
+#       *[![:cntrl:][:print:]]*) echo -n $word ;;
+#       *) return 0 ;;
+#     esac
+#     isascii "$word" && echo -n "$word" || echo -n "=?UTF-8?B?$(echo -n "$word" | base64)?="
+#   done
+# }
+