diff --git a/lib/dns.sh b/lib/dns.sh
deleted file mode 100644
index dded5b0..0000000
--- a/lib/dns.sh
+++ /dev/null
@@ -1,658 +0,0 @@
-#!/usr/bin/env bash
-
-####################
-# config variables #
-####################
-
-[ -z "${!DNS_KEYS[*]}" ] && declare -A DNS_KEYS=()
-[ -z "${!BASE_CONFIG[*]}" ] && declare -A BASE_CONFIG=()
-[ -z "${!ZONE_TEMPLATES[*]}" ] && declare -A ZONE_TEMPLATES=()
-
-DNS_IP=${DNS_IP:-127.0.0.1}
-
-DIG=${DIG:-$(which dig)} || exit 1
-IDN2=${IDN2:-$(which idn2)} || exit 1
-JQ=${JQ:-$(which jq)} || exit 1
-NAMED_CHECKCONF=${NAMED_CHECKCONF:-$(which named-checkconf)} || exit 1
-NSUPDATE=${NSUPDATE:-$(which nsupdate)} || exit 1
-RNDC=${RNDC:-$(which rndc)} || exit 1
-
-TERMINAL_WITH=${MAX_TERMINAL_WITH:-$($(which stty) size | cut -d " " -f 2)} || exit 1
-
-####################
-# global variables #
-####################
-
-# List of managable DNS record types
-declare -a DNS_RECORD_TYPES=("A" "AAAA" "CAA" "CDS" "CNAME" "DNAME" "DS" "MX" "NS" "PTR" "SRV" "TLSA" "TXT")
-
-# Global variables
-NEWLINE=$'\n'
-TAB=$'\t'
-
-NAMED_DEFAULT_VIEW="_default"
-
-
-########################################
-# bash array and JSON helper functions #
-########################################
-
-in_array() {
-  local search=$1
-  shift
-
-  local value
-  for value in "$@"; do
-    [ "$search" == "$value" ] && return 0
-  done
-
-  return 1
-}
-
-join_by() {
-  local d=${1-} f=${2-}
-
-  if shift 2; then
-    printf %s "$f" "${@/#/$d}"
-  fi
-}
-
-raw_to_json_obj() {
-  local delim=$1
-  shift || return 1
-
-  local fields=()
-  local name index
-  while (( $# > 0 )); do
-    IFS=":" read -r name index <<<"$1"
-    shift
-    fields+=("$name:.[$index]")
-  done
-
-  local jq_cmd=". | split(\$delim) | {$(join_by "," "${fields[@]}")}"
-
-  "$JQ" --raw-input --compact-output --arg delim "$delim" "$jq_cmd" < <(cat -)
-  return $?
-}
-
-json_array_to_bash() {
-  local retvar=${1:-REPLY}
-
-  local _values=()
-  while IFS=$NEWLINE read -r line; do
-    _values+=("$("$JQ" --raw-output --compact-output '.[] | @sh' <<<"$line")")
-  done < <(cat -)
-  
-  declare -g -a $retvar
-  eval "$retvar=(${_values[@]})"
-}
-
-bash_array_to_json() {
-  "$JQ" --raw-input --compact-output '.' < <(cat -) | "$JQ" --compact-output --slurp
-}
-
-#############################
-# internal helper functions #
-#############################
-
-_get_keyfile() {
-  local retvar=$1
-  local zone=$2
-  local view=$3
-
-  local key_id
-  for key_id in "$zone@$view" "$view"; do
-    keyfile=${DNS_KEYS["$key_id"]}
-    if [ -n "$keyfile" ]; then
-      if ! test -r "$keyfile" -a -f "$keyfile"; then
-        echo "ERROR: key file does not exist or is not accessible -- '$keyfile'" >&2
-        return 1
-      fi
-      declare -g $retvar="$keyfile"
-      return 0
-    fi
-  done
-
-  if [ "$view" == "$NAMED_DEFAULT_VIEW" ]; then
-    declare -g $retvar=""
-    return 0
-  fi
-
-  echo "ERROR: no key configured for '$zone@$view' or '$view'" >&2
-  return 1
-}
-
-_nsupdate() {
-  local zone=$1
-  shift || return 1
-  local view=$1
-  shift || return 1
-  local update_script=$1
-  shift || return 1
-  local pretend=${1:-true}
-
-  _get_keyfile keyfile "$zone" "$view" || return $?
-
-  local nsupdate_args=""
-  [ -n "$keyfile" ] && nsupdate_args="-k ${keyfile}"
-
-  "$NSUPDATE" -v $nsupdate_args < <(
-    echo "server $DNS_IP"
-    echo "$update_script"
-    if $pretend; then
-      echo "show"
-    else
-      echo "send"
-      echo "answer"
-    fi
-  )
-
-  return $?
-}
-
-
-#####################
-# general functions #
-#####################
-
-dns_get_base_config() {
-  local view=$1
-  local zone_dir_retvar=${2:-REPLY}
-  local conf_dir_retvar=${3:-REPLY}
-  local conf_file_retvar=${4:-REPLY}
-
-  local base_config=${BASE_CONFIG[$view]}
-  [ -z "$base_config" ] && echo "ERROR: no base config found for view -- '$view'" >&2 && return 1
-
-  local zone_dir conf_dir conf_file
-  IFS=":" read -r zone_dir conf_dir conf_file <<<"$base_config"
-  [ -z "$zone_dir" -o -z "$conf_dir" -o -z "$conf_file" ] && echo "ERROR: invalid BASE_CONFIG for view -- '$view'" >&2 && return 2
-  ! [ -d "$conf_dir" ] && echo "ERROR: conf dir: no such directory -- '$conf_dir'" >&2 && return 3
-  ! [ -d "$zone_dir" ] && echo "ERROR: zone dir: no such directory -- '$zone_dir'" >&2 && return 4
-
-  declare -g $zone_dir_retvar="$zone_dir"
-  declare -g $conf_dir_retvar="$conf_dir"
-  declare -g $conf_file_retvar="$conf_file"
-}
-
-
-#############################
-# data generation functions #
-#############################
-
-_DNS_ZONES_DATA=""
-
-dns_zones() {
-  local zone=$1
-
-  if [ -z "$_DNS_ZONES_DATA" ]; then
-    local raw_data=$("$NAMED_CHECKCONF" -l | grep -P -i '^[^.][^ ]* IN ' | sort) || return 1
-    local json_data=$(raw_to_json_obj " " "zone:0" "view:2" "status:3" <<<"$raw_data") || return 2
-    declare -g _DNS_ZONES_DATA=$("$JQ" --compact-output --slurp 'sort_by(.zone)' <<<"$json_data") || return 3
-  fi
-
-  [ -z "$zone" ] && echo "$_DNS_ZONES_DATA" && return 0
-  
-  "$JQ" --compact-output --arg zone "$zone" '[ .[] | select(.zone == $zone) ]' <<<"$_DNS_ZONES_DATA"
-}
-
-dns_zone_views() {
-  local zone=$1
-
-  local zones=$(dns_zones "$zone") || return $?
-  "$JQ" --compact-output '[ .[] | .view ] | sort | unique' <<<"$zones"
-  return $?
-}
-
-dns_zone() {
-  local zone=$1
-  local view=$2
-  local all=${3:-false}
-
-  local keyfile
-  _get_keyfile keyfile "$zone" "$view" || return $?
-
-  local dig_args
-  [ -n "$keyfile" ] && dig_args="-k ${keyfile}"
-  local raw_data=$("$DIG" @${DNS_IP} $dig_args +nocmd +onesoa +nostats AXFR "$zone" | \
-    sed -r 's#^([^ \t]+)[ \t]+([^ \t]+)[ \t]+([^ \t]+)[ \t]+([^ \t]+)[ \t]+(.+)#\1\t\2\t\3\t\4\t\5#g' | \
-    grep -P -i '^[^\t]+\t[0-9]+\tIN\t')
-
-  raw_data=$(
-    local name ttl _type rtype value
-    while read -r name ttl _type rtype value; do
-      if [ "${rtype^^}" == "TXT" ]; then
-        decoded_value=$(dns_decode_txt_value "$value")
-      else
-        decoded_value=$value
-      fi
-      printf "%s\t" "$name" "$ttl" "$rtype" "$value" "$decoded_value"
-      echo
-    done <<<"$raw_data"
-  )
-
-  local query='.'
-  local rtypes="[]"
-
-  if ! $all; then
-    query='[ .[] | select(.type | IN($rtypes[])) ]'
-    rtypes=$(printf "%s\n" "${DNS_RECORD_TYPES[@]}" | bash_array_to_json)
-  fi
-
-  query+='| [ .[] | .view += "\($view)" | if .name == "\($zone)." then .name = "@" else .name = "\(.name | capture("(?<name>.+)\\.\($zone)").name )" end ] | sort_by(.name)'
-
-  raw_to_json_obj "$TAB" "name:0" "ttl:1" "type:2" "value:3" "decoded_value:4" <<<"$raw_data" | \
-    jq --compact-output --slurp --arg view "$view" --argjson rtypes "$rtypes" --arg zone "$zone" "$query"
-}
-
-
-##############################
-# input validation functions #
-##############################
-
-dns_check_zone() {
-  local zone=$1
-  shift || return 1
-  local retvar=${1:-REPLY}
-
-  zone=$("$IDN2" <<<"$zone")
-
-  local zones=$(dns_zones "$zone") || return 1
-
-  local query='if . | length > 0 then "true" else "false" end'
-  local found=$("$JQ" --raw-output --arg zone "$zone" "$query" <<<"$zones")
-
-  $found && declare -g $retvar="$zone" && return 0
-
-  echo "ERROR: zone does not exist -- '$zone'" >&2
-  return 2
-}
-
-dns_check_view() {
-  local view=$1
-  shift || return 1
-
-  local query='. as $list | $view | IN($list[])'
-  $("$JQ" --raw-output --arg view "$view" "$query" < <(dns_zone_views)) && return 0
-
-  echo "ERROR: view does not exist -- '$view'" >&2
-  return 1
-}
-
-dns_check_zone_view() {
-  local zone_view=$1
-  local zone_retvar=$2
-  local view_retvar=$3
-
-  local zone view
-  IFS='@' read -r zone view <<<"$zone_view"
-
-  dns_check_zone "$zone" zone || return 1
-
-  local -a views
-  json_array_to_bash views < <(dns_zone_views "$zone")
-
-  if [ -z "$view" ]; then
-    if (( ${#views[@]} > 1 )); then
-      echo "ERROR: zone is member of multiple views -- '$zone'" >&2
-      return 2
-    fi
-    if [ "${views[0]}" != "$NAMED_DEFAULT_VIEW" ]; then
-      echo "ERROR: zone is not a member of the default view -- '$zone'" >&2
-      return 3
-    fi
-    view=$NAMED_DEFAULT_VIEW
-  elif [ "${view}" != "*" ]; then
-    dns_check_view "$view" || return 4
-    if ! in_array "$view" "${views[@]}"; then
-      echo "ERROR: zone '$zone' is not part of view '$view'" >&2
-      return 5
-    fi
-  fi
-
-  [ -n "$zone_retvar" ] && declare -g $zone_retvar="$zone"
-  [ -n "$view_retvar" ] && declare -g $view_retvar="$view"
-
-  return 0
-}
-
-dns_check_zone_name() {
-  local zone=${1,,}
-  local retvar=${2:-REPLY}
-
-  zone=$("$IDN2" <<<"$zone")
-  if ! [[ "$zone" =~ ^[a-z0-9_][a-z0-9_.-]*$ ]] || [[ "$zone" == *"." ]]; then
-    echo "ERROR: invalid zone name -- '$zone'" >&2
-    return 1
-  fi
-
-  declare -g $retvar="$zone"
-}
-
-dns_check_zone_name_view() {
-  local zone_view=${1,,}
-  local zone_retvar=$2
-  local view_retvar=$3
-
-  local zone view
-  IFS='@' read -r zone view <<<"$zone_view"
-
-  dns_check_zone_name "$zone" zone || return 1
-
-  if [ -z "$view" ]; then
-    view=$NAMED_DEFAULT_VIEW
-  elif [ "$view" != "*" ]; then
-    dns_check_view "$view" || return 2
-  fi
-
-  local -a views=()
-  json_array_to_bash views < <(dns_zone_views "$zone")
-
-  if (( ${#views[@]} > 0 )); then
-    if [ "${view}" == "*" ]; then
-      echo "ERROR: zone '$zone' already exists in these views -- '$(join_by ", " "${views[@]}")'" >&2 && return 4
-    else
-      in_array "$view" "${views[@]}" && echo "ERROR: zone '$zone' already exists in view -- '$view'" >&2 && return 5
-    fi
-  fi
-
-  [ -n "$zone_retvar" ] && declare -g $zone_retvar="$zone"
-  [ -n "$view_retvar" ] && declare -g $view_retvar="$view"
-
-  return 0
-}
-
-dns_check_record_name() {
-  local name=${1,,}
-  local retvar=${2:-REPLY}
-
-  [ "$name" == "@" ] && return 0
-
-  name=$("$IDN2" <<<"$name")
-
-  local LC_ALL=C
-  if [[ "$name" =~ ^[a-zA-Z0-9_][a-zA-Z0-9_.-]*$ ]] && [[ "$name" != *"." ]]; then
-    declare -g $retvar="$name"
-    return 0
-  fi
-
-  echo "ERROR: invalid record name -- '$name'" >&2
-  return 1
-}
-
-dns_check_ttl() {
-  local ttl=$1
-
-  [[ "$ttl" =~ ^[1-9][0-9]*$ ]] && (( $ttl <= 2147483647 )) && return 0
-  
-  echo "ERROR: invalid TTL -- '$ttl'" >&2
-  return 1
-}
-
-dns_check_record_type() {
-  local rtype=$1
-
-  [ -z "$rtype" ] && return 1
-
-  if ! in_array "${rtype^^}" "${DNS_RECORD_TYPES[@]}"; then
-    echo "ERROR: invalid record type -- '$rtype'" >&2
-    return 1
-  fi
-
-  return 0
-}
-
-dns_check_record_value() {
-  local rtype=$1
-  local value=$2
-  local retvar=${3:-REPLY}
-
-  [ -z "$rtype" ] && return 1
-  [ -z "$value" ] && return 1
-
-  case "${rtype^^}" in
-    A)
-      local digit_re='(0|1[0-9]{0,2}|2([0-9]|[0-4][0-9]|5[0-5])?)'
-      local ipv4_re="^$digit_re\.$digit_re\.$digit_re\.$digit_re\$"
-      local LC_ALL=C
-      if ! [[ "$value" =~ $ipv4_re ]]; then
-        echo "ERROR: invalid IPv4 address -- '$value'" 2>&1
-	return 1
-      fi
-    ;;
-    AAAA)
-      local ipv6_re='^(([0-9a-fA-F]{1,4}:){7,7}[0-9a-fA-F]{1,4}|([0-9a-fA-F]{1,4}:){1,7}:|([0-9a-fA-F]{1,4}:){1,6}:[0-9a-fA-F]{1,4}|([0-9a-fA-F]{1,4}:){1,5}(:[0-9a-fA-F]{1,4}){1,2}|([0-9a-fA-F]{1,4}:){1,4}(:[0-9a-fA-F]{1,4}){1,3}|([0-9a-fA-F]{1,4}:){1,3}(:[0-9a-fA-F]{1,4}){1,4}|([0-9a-fA-F]{1,4}:){1,2}(:[0-9a-fA-F]{1,4}){1,5}|[0-9a-fA-F]{1,4}:((:[0-9a-fA-F]{1,4}){1,6})|:((:[0-9a-fA-F]{1,4}){1,7}|:)|fe80:(:[0-9a-fA-F]{0,4}){0,4}%[0-9a-zA-Z]{1,}|::(ffff(:0{1,4}){0,1}:){0,1}((25[0-5]|(2[0-4]|1{0,1}[0-9]){0,1}[0-9])\.){3,3}(25[0-5]|(2[0-4]|1{0,1}[0-9]){0,1}[0-9])|([0-9a-fA-F]{1,4}:){1,4}:((25[0-5]|(2[0-4]|1{0,1}[0-9]){0,1}[0-9])\.){3,3}(25[0-5]|(2[0-4]|1{0,1}[0-9]){0,1}[0-9]))$'
-      local LC_ALL=C
-      if ! [[ "$value" =~ $ipv6_re ]]; then
-        echo "ERROR: invalid IPv6 address -- '$value'" 2>&1
-	return 1
-      fi
-    ;;
-    CNAME|PTR|NS)
-      dns_check_zone_name "$value" || return 1
-    ;;
-    MX)
-      local prio mx
-      read -r prio mx <<<"$value"
-      [ -z "$rio" -a -z "$mx" ] && echo "ERROR: invalid MX record format -- '$value'" >&2 && return 1
-      local LC_ALL=C
-      ! [[ "$prio" =~ ^[1-9][0-9]*$ ]] && echo "ERROR: invalid priority -- '$prio'" >&2 && return 1
-      dns_check_zone_name "$mx" || return 1
-    ;;
-    TXT)
-      if [ "${value:0:1}" != '"' ]; then
-        local -a parts=()
-	local index=0
-	while (( ${#value} - $index > 0 )); do
-          parts+=("${value:$index:255}")
-	  ((index+=255))
-	done
-	value="\"$(join_by '" "' "${parts[@]}")\""
-      fi
-    ;;
-  esac
-
-  declare -g $retvar="$value"
-
-  return 0
-}
-
-
-########################
-# user input functions #
-########################
-
-yes_no() {
-  local yn=""
-
-  while :; do
-    read -p "$* (yes/no): " yn
-    case "$yn" in
-      [Yy]*) return 0 ;;
-      [Nn]*) return 1 ;;
-    esac
-  done
-}
-
-dns_select_zone() {
-  local zone_retvar=$1
-  local view_retvar=$2
-  
-  local -a zones=()
-
-  local zones=$(dns_zones) || return $?
-  
-  json_array_to_bash zones < <("$JQ" --compact-output '[ .[] | .zone ] | unique' <<<"$zones")
-  (( ${#zones[@]} == 0 )) && echo "ERROR: no zones found" >&2 && return 1
-
-  local COLUMNS=30
-
-  echo -e "Select zone:\n"
-  select zone in "${zones[@]}"; do
-    [ -n "$zone" ] && break
-  done
-  echo
-  [ -z "$zone" ] && echo "ERROR: zone selection failed" >&2 && return 1
-
-  local views=()
-  json_array_to_bash views < <(dns_zone_views "$zone")
-
-  local view=""
-  if (( ${#views[@]} == 1 )) && [ "${views[0]}" == "$NAMED_DEFAULT_VIEW" ]; then
-    view=$NAMED_DEFAULT_VIEW
-  else
-    echo -e "Select view:\n"
-    select view in "${views[@]}"; do
-      [ -n "$view" ] && break
-    done
-    echo
-    [ -z "$view" ] && echo "ERROR: view selection failed" >&2 && return 1
-  fi
-  
-  declare -g $zone_retvar="$zone"
-  declare -g $view_retvar="$view"
-}
-
-dns_select_record_type() {
-  local retvar=${1:-REPLY}
-
-  echo "Select record type:"
-  local rtype
-  select rtype in "${DNS_RECORD_TYPES[@]}"; do
-    [ -n "$rtype" ] && break
-  done
-  echo
-  [ -z "$rtype" ] && echo "ERROR: record type selection failed" >&2 && return 1
-
-  declare -g $retvar="$rtype"
-}
-
-dns_read_zone_view() {
-  local zone_retvar=$1
-  local view_retvar=$2
-
-  local zone
-  while [ -z "$zone" ]; do
-    read -e -p "Zone name (ZONE or ZONE@VIEW): " zone
-    [ -n "$zone" ] && ! dns_check_zone_name_view "$zone" "$zone_retvar" "$view_retvar" && zone=""
-  done
-  echo
-}
-
-dns_read_record_name() {
-  local retvar=${1:-REPLY}
-  
-  local name=""
-  while [ -z "$name" ]; do
-    read -e -p "Record name (e.g. www or mail): " name
-    [ -n "$name" ] && ! dns_check_record_name "$name" name && name=""
-  done
-  echo
-
-  declare -g $retvar="$name"
-}
-
-dns_read_ttl() {
-  local retvar=${1:-REPLY}
-
-  local ttl
-  while [ -z "$ttl" ]; do
-    read -e -p "TTL (seconds): " -i 7200 ttl
-    [ -n "$ttl" ] && ! dns_check_ttl "$ttl" && ttl=""
-  done
-  echo
-  
-  declare -g $retvar="$ttl"
-}
-
-dns_read_record_value() {
-  local rtype=$1
-  local retvar=${2:-REPLY}
-  
-  local value
-  while [ -z "$value" ]; do
-    read -e -p "Value: " value
-    [ -n "$value" ] && ! dns_check_record_value "$rtype" "$value" value && value=""
-  done
-  echo
-  declare -g $retvar="$value"
-}
-
-dns_decode_txt_value() {
-  local value=$1
-  [ "${value:0:1}" != '"' ] && echo "$value" && return
-
-  value=${value#\"}
-  value=${value%\"}
-  sed -r 's#([^\])" "#\1#g;s#\\"#"#g' <<<"$value"
-}
-
-
-####################
-# action functions #
-####################
-
-dns_record_add() {
-  local pretend=$1
-  local zone=$2
-  local view=$3
-  local name=$4
-  local ttl=$5
-  local rtype=$6
-  local value=$7
-
-  [ -z "$pretend" ] && echo "ERROR: missing argument -- PRETEND" >&2 && return 1
-  ! in_array "$pretend" "true" "false" && echo "ERROR: invalid argument PRETEND -- '$pretend'" >&2 && return 1
-  [ -z "$zone" ] && echo "ERROR: missing argument -- ZONE" >&2 && return 1
-  [ -z "$view" ] && echo "ERROR: missing argument -- VIEW" >&2 && return 1
-  [ -z "$name" ] && echo "ERROR: missing argument -- NAME" >&2 && return 1
-  [ -z "$ttl" ] && echo "ERROR: missing argument -- TTL" >&2 && return 1
-  [ -z "$rtype" ] && echo "ERROR: missing argument -- TYPE" >&2 && return 1
-  [ -z "$value" ] && echo "ERROR: missing argument -- VALUE" >&2 && return 1
-
-  local fqdn
-  [ "$name" == "@" ] && fqdn=$zone || fqdn="$name.$zone"
-
-  update_script=""
-  if [ "${rtype^^}" == "CNAME" ]; then
-    update_script="prereq nxdomain $fqdn$NEWLINE"
-  fi
-  update_script+="update add $fqdn $ttl $rtype $value"
-
-  _nsupdate "$zone" "$view" "$update_script" "$pretend"
-  return $?
-}
-
-dns_record_delete() {
-  local pretend=$1
-  local zone=$2
-  local view=$3
-  local name=$4
-  local rtype=$5
-  local value=$6
-
-  [ -z "$pretend" ] && echo "ERROR: missing argument -- PRETEND" >&2 && return 1
-  ! in_array "$pretend" "true" "false" && echo "ERROR: invalid argument PRETEND -- '$pretend'" >&2 && return 1
-  [ -z "$zone" ] && echo "ERROR: missing argument -- ZONE" >&2 && return 1
-  [ -z "$view" ] && echo "ERROR: missing argument -- VIEW" >&2 && return 1
-  [ -z "$name" ] && echo "ERROR: missing argument -- NAME" >&2 && return 1
-  [ -z "$rtype" ] && echo "ERROR: missing argument -- TYPE" >&2 && return 1
-  [ -z "$value" ] && echo "ERROR: missing argument -- VALUE" >&2 && return 1
-
-  local fqdn
-  [ "$name" == "@" ] && fqdn=$zone || fqdn="$name.$zone"
-  [ -n "$value" ] && value=" $value"
-
-  update_script="update delete $fqdn $rtype$value"
-
-  _nsupdate "$zone" "$view" "$update_script" "$pretend"
-  return $?
-}
-
-dns_reload_config() {
-  echo -n "Reload Bind config... "
-  rndc_args=""
-  [ -n "$CONTROL_KEY" ] && rndc_args="-k $CONTROL_KEY"
-  ! "$RNDC" $rndc_args reconfig && echo "ERROR: rndc reconfig failed" >&2 && return 1
-  echo "Ok"
-}
diff --git a/lib/output.sh b/lib/output.sh
deleted file mode 100644
index 57de162..0000000
--- a/lib/output.sh
+++ /dev/null
@@ -1,95 +0,0 @@
-#!/usr/bin/env bash
-
-_prettytable_char_top_left="┌"
-_prettytable_char_horizontal="─"
-_prettytable_char_vertical="│"
-_prettytable_char_bottom_left="└"
-_prettytable_char_bottom_right="┘"
-_prettytable_char_top_right="┐"
-_prettytable_char_vertical_horizontal_left="├"
-_prettytable_char_vertical_horizontal_right="┤"
-_prettytable_char_vertical_horizontal_top="┬"
-_prettytable_char_vertical_horizontal_bottom="┴"
-_prettytable_char_vertical_horizontal="┼"
-
-
-# Escape codes
-
-# Default colors
-_prettytable_color_blue="0;34"
-_prettytable_color_green="0;32"
-_prettytable_color_cyan="0;36"
-_prettytable_color_red="0;31"
-_prettytable_color_purple="0;35"
-_prettytable_color_yellow="0;33"
-_prettytable_color_gray="1;30"
-_prettytable_color_light_blue="1;34"
-_prettytable_color_light_green="1;32"
-_prettytable_color_light_cyan="1;36"
-_prettytable_color_light_red="1;31"
-_prettytable_color_light_purple="1;35"
-_prettytable_color_light_yellow="1;33"
-_prettytable_color_light_gray="0;37"
-
-# Somewhat special colors
-_prettytable_color_black="0;30"
-_prettytable_color_white="1;37"
-_prettytable_color_none="0"
-
-function _prettytable_prettify_lines() {
-    cat - | sed -e "s@^@${_prettytable_char_vertical}@;s@\$@	@;s@	@	${_prettytable_char_vertical}@g"
-}
-
-function _prettytable_fix_border_lines() {
-    cat - | sed -e "1s@ @${_prettytable_char_horizontal}@g;3s@ @${_prettytable_char_horizontal}@g;\$s@ @${_prettytable_char_horizontal}@g"
-}
-
-function _prettytable_colorize_lines() {
-    local color="$1"
-    local range="$2"
-    local ansicolor="$(eval "echo \${_prettytable_color_${color}}")"
-
-    cat - | sed -e "${range}s@\\([^${_prettytable_char_vertical}]\\{1,\\}\\)@"$'\E'"[${ansicolor}m\1"$'\E'"[${_prettytable_color_none}m@g"
-}
-
-function prettytable() {
-    local cols="${1}"
-    local color="${2:-none}"
-    local input="$(cat -)"
-    local header="$(echo -e "${input}"|head -n1)"
-    local body="$(echo -e "${input}"|tail -n+2)"
-    {
-        # Top border
-        echo -n "${_prettytable_char_top_left}"
-        for i in $(seq 2 ${cols}); do
-            echo -ne "\t${_prettytable_char_vertical_horizontal_top}"
-        done
-        echo -e "\t${_prettytable_char_top_right}"
-
-        echo -e "${header}" | _prettytable_prettify_lines
-
-        # Header/Body delimiter
-        echo -n "${_prettytable_char_vertical_horizontal_left}"
-        for i in $(seq 2 ${cols}); do
-            echo -ne "\t${_prettytable_char_vertical_horizontal}"
-        done
-        echo -e "\t${_prettytable_char_vertical_horizontal_right}"
-
-        echo -e "${body}" | _prettytable_prettify_lines
-
-        # Bottom border
-        echo -n "${_prettytable_char_bottom_left}"
-        for i in $(seq 2 ${cols}); do
-            echo -ne "\t${_prettytable_char_vertical_horizontal_bottom}"
-        done
-        echo -e "\t${_prettytable_char_bottom_right}"
-    } | column -t -s $'\t' | _prettytable_fix_border_lines | _prettytable_colorize_lines "${color}" "2"
-}
-
-table_output() {
-  local n_cols=$#
-  {  
-    printf "$(join_by "\t" "$@")\n"
-    cat -
-  } | prettytable "$n_cols" "${TABLE_HEADER_COLOR:-gray}"
-}