[email_account] Use getopt to parse options

- Parse options using getopts
- Delete --help option

email_account/email_account

@@ -29,7 +29,7 @@ usage ()
 	echo "Usage :"
 	echo
 	echo "$progname emailaccount [emailalias]"
-	echo "$progname -h | --help"
+	echo "$progname -h"
 	echo
 	echo "Fist form adds an email account named emailaccount if it doesn't already exist"
 	echo "and creates an alias named emailalias for this email account if specified."
@@ -82,30 +82,42 @@ ask_user_default_no ()
 test_args ()
 {
 	local - user domain
-	if [ \( $# -gt 1 -a "$1" = "-h" \) -o $# -gt 2 ]
+	while getopts "h" opt
+	do
+		case $opt in
+			"h") 
+				if [ $# -gt 1 ]
+				then
+					echo "Error! Too many arguments." >&2
+					exit 1
+				fi
+				usage $(basename "$0")
+				exit 0 ;;
+		esac
+	done
+	if [ $# -eq 1 -a -z "$1" ]
+	then
+		usage $(basename "$0")
+		exit 0
+	fi
+	if [ $# -gt $((OPTIND+1)) ]
 	then
 		echo "Error! Too many arguments." >&2
 		exit 1
 	fi
-	if [ -z "$1" -o "$1" = "-h" -o "$1" = "-help" ]
+	# Test email arguments
+	eval test_email "\$$OPTIND"
+	emailuser="$user"
+	emaildomain="$domain"
+	if [ $# -eq $((OPTIND+1)) ]
 	then
-		usage $(basename $0)
+		eval test_email "\$$((OPTIND+1))"
-		exit 0
+		aliasuser="$user"
-	else
+		aliasdomain="$domain"
-		# Test email arguments
+		if [ "$emaildomain" != "$aliasdomain" ]
-		test_email "$1"
-		emailuser="$user"
-		emaildomain="$domain"
-		if [ $# -eq 2 ]
 		then
-			test_email "$2"
+			echo "Error! Domain of the alias must be identical to the domain of the email account." >&2
-			aliasuser="$user"
+			exit 1
-			aliasdomain="$domain"
-			if [ "$emaildomain" != "$aliasdomain" ]
-			then
-				echo "Error! Domain of the alias must be identical to the domain of the email account." >&2
-				exit 1
-			fi
 		fi
 	fi
 }