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+#=====================================================================
+# LedgerSMB Small Medium Business Accounting
+# Copyright (C) 2002
+#
+# Author: Dieter Simader
+# Email: dsimader@sql-ledger.org
+# Web: http://sourceforge.net/projects/ledger-smb/
+#
+# Contributors:
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+#======================================================================
+#
+# this is a variation of the Lingua package
+# written for check and receipt printing
+# it returns a properly formatted text string
+# for a number up to 10**12
+
+sub init {
+ my $self = shift;
+
+ %{ $self->{numbername} } =
+ (0 => 'Null',
+ 1 => 'ein',
+ 2 => 'zwei',
+ 3 => 'drei',
+ 4 => 'vier',
+ 5 => 'fünf',
+ 6 => 'sechs',
+ 7 => 'sieben',
+ 8 => 'acht',
+ 9 => 'neun',
+ 10 => 'zehn',
+ 11 => 'elf',
+ 12 => 'zwölf',
+ 13 => 'dreizehn',
+ 14 => 'vierzehn',
+ 15 => 'fünfzehn',
+ 16 => 'sechzehn',
+ 17 => 'siebzehn',
+ 18 => 'achtzehn',
+ 19 => 'neunzehn',
+ 20 => 'zwanzig',
+ 30 => 'dreissig',
+ 40 => 'vierzig',
+ 50 => 'fünfzig',
+ 60 => 'sechzig',
+ 70 => 'siebzig',
+ 80 => 'achtzig',
+ 90 => 'neunzig',
+ 10**2 => 'hundert',
+ 10**3 => 'tausend',
+ 10**6 => 'million',
+ 10**9 => 'milliarde',
+ 10**12 => 'billion'
+ );
+
+}
+
+
+sub num2text {
+ my ($self, $amount) = @_;
+
+ return $self->{numbername}{0} unless $amount;
+
+ my @textnumber = ();
+
+ # split amount into chunks of 3
+ my @num = reverse split //, abs($amount);
+ my @numblock = ();
+ my ($i, $appendn);
+ my @a = ();
+
+ while (@num) {
+ @a = ();
+ for (1 .. 3) {
+ push @a, shift @num;
+ }
+ push @numblock, join / /, reverse @a;
+ }
+
+ my $belowhundred = !$#numblock;
+
+ while (@numblock) {
+
+ $i = $#numblock;
+ @num = split //, $numblock[$i];
+ $appendn = "";
+
+ $numblock[$i] *= 1;
+
+ if ($numblock[$i] == 0) {
+ pop @numblock;
+ next;
+ }
+
+ if ($numblock[$i] > 99) {
+ # the one from hundreds
+ push @textnumber, $self->{numbername}{$num[0]};
+
+ # add hundred designation
+ push @textnumber, $self->{numbername}{10**2};
+
+ # reduce numblock
+ $numblock[$i] -= $num[0] * 100;
+ }
+
+ $appendn = 'en' if ($i == 2);
+ $appendn = 'n' if ($i > 2);
+
+ if ($numblock[$i] > 9) {
+ # tens
+ push @textnumber, $self->format_ten($numblock[$i], $belowhundred);
+ } elsif ($numblock[$i] > 1) {
+ # ones
+ push @textnumber, $self->{numbername}{$numblock[$i]};
+ } elsif ($numblock[$i] == 1) {
+ if ($i == 0) {
+ push @textnumber, $self->{numbername}{$numblock[$i]}.'s';
+ } else {
+ if ($i >= 2) {
+ push @textnumber, $self->{numbername}{$numblock[$i]}.'e';
+ } else {
+ push @textnumber, $self->{numbername}{$numblock[$i]};
+ }
+ }
+ $appendn = "";
+ }
+
+ # add thousand, million
+ if ($i) {
+ $amount = 10**($i * 3);
+ push @textnumber, $self->{numbername}{$amount}.$appendn;
+ }
+
+ pop @numblock;
+
+ }
+
+ join '', @textnumber;
+
+}
+
+
+sub format_ten {
+ my ($self, $amount, $belowhundred) = @_;
+
+ my $textnumber = "";
+ my @num = split //, $amount;
+
+ if ($amount > 20) {
+ if ($num[1] == 0) {
+ $textnumber = $self->{numbername}{$amount};
+ } else {
+ if ($belowhundred) {
+ $amount = $num[0] * 10;
+ $textnumber = $self->{numbername}{$num[1]}.'und'.$self->{numbername}{$amount};
+ } else {
+ $amount = $num[0] * 10;
+ $textnumber = $self->{numbername}{$amount}.$self->{numbername}{$num[1]};
+ $textnumber .= 's' if ($num[1] == 1);
+ }
+ }
+ } else {
+ $textnumber = $self->{numbername}{$amount};
+ }
+
+ $textnumber;
+
+}
+
+
+1;
+