List bash array with max line length and custom item separator.

echoarraywithmaxwidth

# Usage: echoarraywithmaxwidth <max line length> <array name> [<item separator>] [<line prefix>]

echoarraywithmaxwidth(){
  declare -i ea_line_length
  ea_separator="${3:-", "}"
  ea_result=""
  ea_array=()
  for (( i = 0; i < "$(eval echo \"\${#${2}[@]}\")"; i++ )); do
    ea_array+=("$(eval echo \"\${${2}[${i}]}\")")
  done
  for word in "${ea_array[@]}"; do
    word="${word}${ea_separator}"
    [ $((( ${ea_line_length} + ${#word} ))) -ge ${1} ] && ea_result+="\n${4}" && ea_line_length=0
    ea_result+="${word}"
    ea_line_length+=${#word}
  done
  echo -e "${ea_result%${ea_separator}}"
}

# GP_BABEL_LANGUAGES=("example with spaces" \
# "afrikaans" "bahasa" "breton" "catalan" "croatian" \
# "czech" "danish" "dutch" "english" "USenglish" "american" "UKenglish" \
# "british esperanto" "estonian" "finnish" "french" "francais" "galician" \
# "austrian" "german" "germanb greek" "hebrew" "magyar" "hungarian" \
# "irish" "italian" "lowersorbian" "norsk" "nynorsk" "polish" "portuges" \
# "portuguese" "brazilian" "brazil romanian" "russian" "scottish" \
# "spanish" "slovak" "slovene" "swedish" "turkish" "uppersorbian" "welsh")
# 
# echoarraywithmaxwidth 80 GP_BABEL_LANGUAGES
#
# echoarraywithmaxwidth 40 GP_BABEL_LANGUAGES " - "
# 
# exit