path: root/locale/py/Num2text

#=====================================================================
# LedgerSMB Small Medium Business Accounting
# Copyright (C) 2002
#
#  Author: Dieter Simader
#   Email: dsimader@sql-ledger.org
#     Web: http://www.ledgersmb.org/
#
#  Language: Spanish
#  Contributors: John Christian Stoddart
#
# 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.
#======================================================================


sub init {
  my $self = shift;

  %{ $self->{numbername} } =
                   (0 => 'cero',
                    1 => 'un',
         '1o' => 'uno',
                    2 => 'dos',
                3 => 'tres',
            4 => 'cuatro',
            5 => 'cinco',
            6 => 'seis',
            7 => 'siete',
            8 => 'ocho',
            9 => 'nueve',
           10 => 'diez',
           11 => 'once',
        '11o' => 'once',
           12 => 'doce',
           13 => 'trece',
           14 => 'catorce',
           15 => 'quince',
           16 => 'dieciséis',
           17 => 'diecisiete',
           18 => 'dieciocho',
           19 => 'diecinueve',
           20 => 'veinte',
           21 => 'veintiún',
            '21o' => 'veintiuno',
           22 => 'veintidós',
           23 => 'veintitrés',
           24 => 'veinticuatro',
           25 => 'veinticinco',
           26 => 'veintiséis',
           27 => 'veintisiete',
           28 => 'veintiocho',
           29 => 'veintinueve',
           30 => 'treinta',
           40 => 'cuarenta',
           50 => 'cincuenta',
           60 => 'sesenta',
           70 => 'setenta',
           80 => 'ochenta',
           90 => 'noventa',
          500 => 'quinientos',
          700 => 'setecientos',
          900 => 'novecientos',
                10**2 => 'ciento',
                10**3 => 'mil',
        10**6 => 'millón',
           10**12 => 'billón',
        );

}


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 $stripun = 0;
  my @a = ();
  my $i;

  while (@num) {
    @a = ();
    for (1 .. 3) {
      push @a, shift @num;
    }
    push @numblock, join / /, reverse @a;
  }
  
  # special case for 1000
  if ($numblock[1] eq '1' && $numblock[0] gt '000') {
    # remove first array element from textnumber
    $stripun = 1;
  }

  while (@numblock) {

    $i = $#numblock;
    @num = split //, $numblock[$i];
    
    $numblock[$i] *= 1;

    if ($numblock[$i] == 0) {
      pop @numblock;
      next;
    }
    
    if ($numblock[$i] > 99) {
      if ($num[0] == 1) {
    push @textnumber, $self->{numbername}{10**2};
      } else {
        # special case for 500, 700, 900
    if (grep /$num[0]/, (5,7,9)) {
      push @textnumber, $self->{numbername}{"${num[0]}00"};
      
    } else {
    
      # the one from hundreds, append cientos
      push @textnumber, $self->{numbername}{$num[0]}.$self->{numbername}{10**2}.'s';
      
    }
      }
     
      # reduce numblock
      $numblock[$i] -= $num[0] * 100;
    }
    
    if ($numblock[$i] > 9) {
      # tens
      push @textnumber, $self->format_ten($numblock[$i], $i);
    } elsif ($numblock[$i] > 0) {
      # ones
      $num = $numblock[$i];
      $num .= 'o' if ($num == 1 && $i == 0);
      push @textnumber, $self->{numbername}{$num};
    }
    
    # add thousand, million
    if ($i) {
      $num = 10**($i * 3);
      if ($numblock[$i] > 1) {
    if ($i == 2 || $i == 4) {
      $a = $self->{numbername}{$num}."es";
      $a =~ s/ó/o/;
      push @textnumber, $a;
    } elsif ($i == 3) {
      $num = 10**($i * 2);
      $a = "$self->{10**3} $self->{numbername}{$num}"."es";
      $a =~ s/ó/o/;
      push @textnumber, $a;
    } else {
      if ($i == 1) {
        push @textnumber, $self->{numbername}{$num};
      } else {
        push @textnumber, $self->{numbername}{$num}.'s';
      }
    }
      } else {
    push @textnumber, $self->{numbername}{$num};
      }
    }
      
    pop @numblock;
    
  }

  shift @textnumber if $stripun;

  join ' ', @textnumber;

}


sub format_ten {
  my ($self, $amount, $i) = @_;
  
  my $textnumber = "";
  my @num = split //, $amount;

  if ($amount > 30) {
    $textnumber = $self->{numbername}{$num[0]*10};
    $amount = $num[1];
  } else {
    $amount .= 'o' if ($num[1] == 1 && $i == 0);
    $textnumber = $self->{numbername}{$amount};
    $amount = 0;
  }

  $textnumber .= " y ".$self->{numbername}{$amount} if $amount;

  $textnumber;
  
}


1;