phonetic_spelling.sh

#!/usr/bin/env bash

_lang=nato
while getopts ":l:" opt; do
	case "${opt}" in
		l) _lang="${OPTARG}" ;;
	esac
done
shift $((OPTIND - 1))

case "${_lang}" in
	it* | IT*) # https://it.wikipedia.org/wiki/Alfabeto_telefonico_italiano
		declare -A CHART=(
			["a"]="ancona" ["b"]="bari" ["c"]="como"
			["d"]="domodossola" ["e"]="empoli" ["f"]="firenze"
			["g"]="genova" ["h"]="hotel" ["i"]="imola"
			["j"]="jolly" ["k"]="kappa" ["l"]="livorno"
			["m"]="milano" ["n"]="napoli" ["o"]="otranto"
			["p"]="palermo" ["q"]="quarto" ["r"]="roma"
			["s"]="savona" ["t"]="torino" ["u"]="udine"
			["v"]="venezia" ["w"]="washington" ["x"]="xilofono"
			["y"]="ipsilon" ["z"]="zara"
			["1"]="UNO" ["2"]="DUE" ["3"]="TRE"
			["4"]="QUATTRO" ["5"]="CINQUE" ["6"]="SEI"
			["7"]="SETTE" ["8"]="OTTO" ["9"]="NOVE"
			["0"]="ZERO" ["!"]="punto esclamativo" ["?"]="punto interrogativo"
			["#"]="cancelletto" ["&"]="e commerciale" ["+"]="piu'"
			["-"]="meno" ["|"]="barra verticale" ["$"]="dollaro"
			["%"]="percento" ["_"]="trattino basso" ["/"]="slash"
			['\']="backslash" ["*"]="asterisco" ["@"]="chiocciola"
			["="]="uguale" ["("]="apri parentesi" [")"]="chiudi parentesi"
			["["]="apri parentesi quadra" ["]"]="chiudi parentesi quadra" ["{"]="apri parentesi graffa"
			["}"]="chiudi parentesi graffa" ["."]="punto" [","]="virgola"
			[";"]="punto e virgola" [":"]="due punti"
		)
		;;
	nato | NATO | *) # https://it.wikipedia.org/wiki/Alfabeto_fonetico_NATO
		declare -A CHART=(
			["a"]="alpha" ["b"]="bravo" ["c"]="charlie"
			["d"]="delta" ["e"]="echo" ["f"]="foxtrot"
			["g"]="golf" ["h"]="hotel" ["i"]="india"
			["j"]="juliet" ["k"]="kilo" ["l"]="lima"
			["m"]="mike" ["n"]="november" ["o"]="oscar"
			["p"]="papa" ["q"]="quebec" ["r"]="romeo"
			["s"]="sierra" ["t"]="tango" ["u"]="uniform"
			["v"]="victor" ["w"]="whiskey" ["x"]="x-ray"
			["y"]="yankee" ["z"]="zulu"
			["1"]="ONE" ["2"]="TWO" ["3"]="THREE"
			["4"]="FOUR" ["5"]="FIVE" ["6"]="SIX"
			["7"]="SEVEN" ["8"]="EIGHT" ["9"]="NINE"
			["0"]="ZERO" ["!"]="exclamation" ["?"]="questionmark"
			["#"]="hash" ["&"]="ampersand" ["+"]="plus"
			["-"]="dash" ["|"]="pipe" ["$"]="dollar"
			["%"]="percent" ["_"]="underscore" ["/"]="slash"
			['\']="backslash" ["*"]="asterisk" ["@"]="at"
			["="]="equals" ["("]="left parenthesis" [")"]="right parenthesis"
			["["]="square bracket open" ["]"]="square bracket closed" ["{"]="brace open"
			["}"]="brace closed" ["."]="dot" [","]="comma"
			[";"]="semicolon" [":"]="colon"
		)
		;;
esac
# add uppercase equivalents
for _c in "${!CHART[@]}"; do
	CHART["${_c^^}"]="${CHART[${_c}]^^}"
done

if [[ ! -t 0 ]]; then
	INPUT="$(timeout 30 tee)"
else
	INPUT="${*}"
fi
for ((i = 0; i < ${#INPUT}; i++)); do
	_c="${INPUT:i:1}"
	case "${_c}" in
		" ") printf '\t' ;;
		*) printf '[%s]%s ' "${_c}" "${CHART["${_c}"]}" ;;
	esac
done