#!/bin/sh

# variables
MSG_CONF_BLABLA="blabla bla"
MSG_SUGGEST_BLABLA="Default is blabla"
MSG_CONF_BLOBLO="bloblo blo"
MSG_SUGGEST_BLOBLO="Default is bloblo"

# function
shwh_question()
{
  eval echo -e \" [Q] \${MSG_CONF_$1}\"
  eval echo -e \" [E] \${MSG_SUGGEST_$1}\"
  echo -n " [R] "
  read ANSWER_$1
}

# program
shwh_question BLABLA