^0$ null
1$ eins
1 ein
2 zwei
3 drei
4 vier
5 fünf
6 sechs
7 sieben
8 acht
9 neun
10 zehn
11 elf
12 zwölf
16 sechzehn
17 siebzehn
1(\d) $1zehn
2(\d) [$1und]zwanzig
3(\d) [$1und]dreissig	# [:de-CH:] [:de-LI:]
3(\d) [$1und]dreißig
6(\d) [$1und]sechzig
7(\d) [$1und]siebzig
(\d)(\d) [$2und]$1zig
(\d)(\d\d) $1hundert$2
(\d{1,3})(\d{3}) $1tausend$2
1(\d{6}) eine Million[ $1]
(\d{1,3})(\d{6}) $1 Millionen[ $2]
1(\d{9}) eine Milliarde[ $1]
(\d{1,3})(\d{9}) $1 Milliarden[ $2]
1(\d{12}) eine Billion[ $1]
(\d{1,3})(\d{12}) $1 Billionen[ $2]
1(\d{15}) eine Billiarde[ $1]
(\d{1,3})(\d{15}) $1 Billiarden[ $2]
1(\d{18}) eine Trillion[ $1]
(\d{1,3})(\d{18}) $1 Trillionen[ $2]
1(\d{21}) eine Trilliarde[ $1]
(\d{1,3})(\d{21}) $1 Trilliarden[ $2]

# negative number

[-−](\d+) minus |$1

# decimals

"([-−]?\d+)[.,]" $1| Komma
"([-−]?\d+[.,]\d*)(\d)" $1| |$2

# currency

# unit/subunit singular/plural

us:([^,]*),([^,]*),([^,]*),([^,]*) \1
up:([^,]*),([^,]*),([^,]*),([^,]*) \2
ss:([^,]*),([^,]*),([^,]*),([^,]*) \3
sp:([^,]*),([^,]*),([^,]*),([^,]*) \4

CHF:(\D+) $(\1: Schweizer Franken, Schweizer Franken, Rappen, Rappen)
CNY:(\D+) $(\1: Yuan, Yuan, Fen, Fen)
EUR:(\D+) $(\1: Euro, Euro, Cent, Cent)
GBP:(\D+) $(\1: Pfund Sterling, Pfund Sterling, Penny, Pence)
USD:(\D+) $(\1: US-Dollar, US-Dollar, Cent, Cents)

"JPY ([-−]?\d+([.,]\d+)?)" $1 Yen

"([A-Z]{3}) ([-−]?1)([.,]00?)?" $2$(\1:us)
"([A-Z]{3}) ([-−]?\d+)([.,]00?)?" $2$(\1:up)

"(CNY [-−]?\d+)[.,]10?" $1 $2 Jiao
"(CNY [-−]?\d+)[.,](\d)0?" $1 $2 Jiao
"(CNY [-−]?\d+[.,]\d)1" $1 $2 Fen
"(CNY [-−]?\d+[.,]\d)(\d)" $1 $2 Fen

"(([A-Z]{3}) [-−]?\d+)[.,](01)" $1 und $(1)$(\2:ss)
"(([A-Z]{3}) [-−]?\d+)[.,](\d)" $1 und $(\30)$(\2:sp)
"(([A-Z]{3}) [-−]?\d+)[.,](\d\d)" $1 und $3$(\2:sp)

== ordinal ==

([-−]?[024569])		$1te
([-−]?\d*0[24569])	$1te
([-−]?\d*1\d)		$1te
([-−]?\d+)		$(ordinal $1)

(.*)eins	\1erste
(.*)drei	\1dritte
(.*)sieben	\1siebte
(.*)acht	\1achte
"(.*)eine Milli(on|ard)e?"	\1einmilli\2ste
"(.*)eine Billi(on|ard)e?"	\1einbilli\2ste
"(.*)eine Trilli(on|ard)e?"	\1eintrilli\2ste
"(.*) Milli(on|ard)en"	\1milli\2ste
"(.*) Billi(on|ard)en"	\1billi\2ste
"(.*) Trilli(on|ard)en"	\1trilli\2ste
(.*)		\1ste

== ordinal-number ==

(\d+)	\1.

== year ==

(10)([0-9][0-9]) tausend$2
(1[1-9])([0-9][0-9]) $1hundert$2
(.*) $1

== help ==

"" |$(1)|, |$(2)|, |$(3)|\n$(help ordinal)$(help ordinal-number)
(ordinal(-number)?) \1: |$(\1 1)|, |$(\1 2)|, |$(\1 3)|\n