#!/bin/bash

#-------------------------------------------------------------------------------
# Example 2 for Bash Tips show 18: transforming words in a string, second
# simpler method that depends on the '-v' operator
#-------------------------------------------------------------------------------

#
# What we'll work on and where we'll store the transformed version
#
phrase='Now is the time for all good men to come to the aid of the party'
newphrase=

#
# How to transform words in the phrase
#
declare -A transform=([good]='bad' [men]='people' [aid]='assistance'
    [party]='Community')

#
# Go word by word; if an element with the word as a key exists in the
# 'transform' array replace the word by what's there.
#
for word in $phrase; do
    if [[ -v transform[$word] ]]; then
        word=${transform[$word]}
    fi
    newphrase+="$word "
done
echo "$newphrase"

exit