kivitendo/SL/Num2text.pm @ eb8a578d
| d319704a | Moritz Bunkus | #=====================================================================
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# LX-Office ERP
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# Copyright (C) 2004
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# Based on SQL-Ledger Version 2.1.9
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# Web http://www.lx-office.org
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#
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#=====================================================================
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# SQL-Ledger Accounting
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# Copyright (C) 2001
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#
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# Author: Dieter Simader
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# Email: dsimader@sql-ledger.org
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# Web: http://www.sql-ledger.org
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#
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# Contributors:
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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#=====================================================================
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#
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# this is the default code for the Check package
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#
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#=====================================================================
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sub init {
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my $self = shift;
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%{ $self->{numbername} } = (0 => 'Zero',
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1 => 'One',
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2 => 'Two',
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3 => 'Three',
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4 => 'Four',
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5 => 'Five',
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6 => 'Six',
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7 => 'Seven',
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8 => 'Eight',
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9 => 'Nine',
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10 => 'Ten',
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11 => 'Eleven',
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12 => 'Twelve',
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13 => 'Thirteen',
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14 => 'Fourteen',
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15 => 'Fifteen',
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16 => 'Sixteen',
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17 => 'Seventeen',
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18 => 'Eighteen',
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19 => 'Nineteen',
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20 => 'Twenty',
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30 => 'Thirty',
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40 => 'Forty',
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50 => 'Fifty',
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60 => 'Sixty',
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70 => 'Seventy',
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80 => 'Eighty',
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90 => 'Ninety',
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10**2 => 'Hundred',
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10**3 => 'Thousand',
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10**6 => 'Million',
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10**9 => 'Billion',
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10**12 => 'Trillion',);
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}
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sub num2text {
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my ($self, $amount) = @_;
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return $self->{numbername}{0} unless $amount;
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my @textnumber = ();
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# split amount into chunks of 3
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my @num = reverse split //, $amount;
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my @numblock = ();
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my @a;
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my $i;
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while (@num) {
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@a = ();
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for (1 .. 3) {
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push @a, shift @num;
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}
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push @numblock, join / /, reverse @a;
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}
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while (@numblock) {
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$i = $#numblock;
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@num = split //, $numblock[$i];
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if ($numblock[$i] == 0) {
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pop @numblock;
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next;
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}
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if ($numblock[$i] > 99) {
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# the one from hundreds
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push @textnumber, $self->{numbername}{ $num[0] };
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# add hundred designation
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push @textnumber, $self->{numbername}{ 10**2 };
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# reduce numblock
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$numblock[$i] -= $num[0] * 100;
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}
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$numblock[$i] *= 1;
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if ($numblock[$i] > 9) {
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# tens
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push @textnumber, $self->format_ten($numblock[$i]);
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} elsif ($numblock[$i] > 0) {
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# ones
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push @textnumber, $self->{numbername}{ $numblock[$i] };
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}
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# add thousand, million
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if ($i) {
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$num = 10**($i * 3);
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push @textnumber, $self->{numbername}{$num};
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}
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pop @numblock;
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}
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join ' ', @textnumber;
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}
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sub format_ten {
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my ($self, $amount) = @_;
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my $textnumber = "";
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my @num = split //, $amount;
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if ($amount > 20) {
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$textnumber = $self->{numbername}{ $num[0] * 10 };
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$amount = $num[1];
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} else {
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$textnumber = $self->{numbername}{$amount};
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$amount = 0;
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}
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$textnumber .= " " . $self->{numbername}{$amount} if $amount;
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$textnumber;
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}
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1;
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