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##########################################################################
# Title      :	expumlaut - expand German Umlaute using ASCII characters
# Author     :	Heiner Steven <heiner.steven@odn.de>
# Date       :	2004-06-23
# Requires   :	
# Category   :	File Conversion
# SCCS-Id.   :	@(#) expumlaut	1.1 04/06/23
##########################################################################
# Description
#    o	Converts German ISO 8859.1 Umlaute to their ASCII equivalents
#	"ae", "oe", etc.
#    o	Special handling: tries to handle upper-case Umlaut characters
#	in all upper-case words. Example: "ÄNDERUNG" -> "AENDERUNG" (not
#	"AeNDERUNG")
##########################################################################

PN=`basename "$0"`			# Program name
VER='1.1'

usage () {
    echo >&2 "$PN - expand German ISO 8859 Umlaute using ASCII characters, $VER
usage: $PN [file ...]"
    exit 1
}

msg () {
    echo >&2 "$PN:" "$@"
}

fatal () { msg "$@"; exit 1; }

#set -- `getopt :h "$@"` || usage
#[ $# -lt 1 ] && usage			# "getopt" detected an error

while [ $# -gt 0 ]
do
    case "$1" in
	--)	shift; break;;
	-h)	usage;;
	-*)	usage;;
	*)	break;;			# First file name
    esac
    shift
done

sed -e 's/ä/ae/g'	\
	-e 's/Ä\([A-ZÄÖÜ]\)/AE\1/g'	\
	-e 's/\([A-ZÄÖÜ]\)Ä/\1AE/g'	\
	-e 's/Ä/Ae/g'	\
	-e 's/ö/oe/g'	\
	-e 's/Ö\([A-ZÄÖÜ]\)/OE\1/g'	\
	-e 's/\([A-ZÄÖÜ]\)Ö/\1OE/g'	\
	-e 's/Ö/Oe/g'	\
	-e 's/ü/ue/g'	\
	-e 's/Ü\([A-ZÄÖÜ]\)/UE\1/g'	\
	-e 's/\([A-ZÄÖÜ]\)Ü/\1UE/g'	\
	-e 's/Ü/Ue/g'	\
	-e 's/ß\([A-ZÄÖÜ]\)/SS\1/g'	\
	-e 's/\([A-ZÄÖÜ]\)ß/\1SS/g'	\
	-e 's/ß/ss/g'	\
	--	\
	"$@"