File Coverage

blib/lib/Lingua/NOR/Word2Num.pm

Criterion	Covered	Total	%
statement	28	28	100.0
branch	1	2	50.0
condition	4	4	100.0
subroutine	9	9	100.0
pod	2	2	100.0
total	44	45	97.7

# For Emacs: -*- mode:cperl; eval: (folding-mode 1); coding:utf-8; -*-

package Lingua::NOR::Word2Num;
# ABSTRACT: Word 2 number conversion in NOR.

# {{{ use block

use 5.10.1;

use strict;
use warnings;
use utf8;

use Export::Attrs;
use Parse::RecDescent;

# }}}
# {{{ variable declarations
our $VERSION = '0.2603230';
my $parser = no_numerals();

# }}}

# {{{ w2n                                         convert number to text

sub w2n :Export {
    my $input = shift // return;

    $input =~ s/ og / /g;                 # Spoke only relevant keywords
    $input =~ s/ million / millioner /g;  # equal

    $input =~ s/,//g;
    $input =~ s/ //g;

    return 0 if $input eq 'null';

    return $parser->numeral($input) || undef;
}

# }}}
# {{{ no_numerals                                 create parser for numerals

sub no_numerals {
    return Parse::RecDescent->new (q{
      numeral:
      numeral: million   { return $item[1]; }                         # root parse. go from maximum to minimum value
        |      millenium { return $item[1]; }
        |      century   { return $item[1]; }
        |      decade    { return $item[1]; }
        |                { return undef; }

      number: 'null'    { $return = 0; }                              # try to find a word from 0 to 19
        |     'nitten'  { $return = 19; }
        |     'atten'   { $return = 18; }
        |     'sytten'  { $return = 17; }
        |     'seksten' { $return = 16; }
        |     'femten'  { $return = 15; }
        |     'fjorten' { $return = 14; }
        |     'tretten' { $return = 13; }
        |     'tolv'    { $return = 12; }
        |     'ellve'   { $return = 11; }
        |     'ti'      { $return = 10; }
        |     'ni'      { $return = 9; }
        |     'åtte'    { $return = 8; }
        |     'sju'     { $return = 7; }
        |     'seks'    { $return = 6; }
        |     'fem'     { $return = 5; }
        |     'fire'    { $return = 4; }
        |     'tre'     { $return = 3; }
        |     'to'      { $return = 2; }
        |     'en'      { $return = 1; }
        |     'ett'     { $return = 1; }

      tens:   'tjue'   { $return = 20; }                              # try to find a word that representates
        |     'tretti' { $return = 30; }                              # values 20,30,..,90
        |     'førti'  { $return = 40; }
        |     'femti'  { $return = 50; }
        |     'seksti' { $return = 60; }
        |     'sytti'  { $return = 70; }
        |     'åtti'   { $return = 80; }
        |     'nitti'  { $return = 90; }

      decade: tens(?) number(?)                                       # try to find words that represents values
              { $return = 0;                                          # from 0 to 99
                for (@item) {
                  $return += $$_[0] if (ref $_ && defined $$_[0]);
                }
              }

      century: number(?) 'hundre' decade(?)                           # try to find words that represents values
               { $return = 0;                                         # from 100 to 999
                 for (@item) {
                   if (ref $_ && defined $$_[0]) {
                     $return += $$_[0];
                   } elsif ($_ eq "hundre") {
                     $return = ($return>0) ? $return * 100 : 100;
                   }
                 }
               }

    millenium: century(?) decade(?) 'tusen' century(?) decade(?)      # try to find words that represents values
               { $return = 0;                                         # from 1.000 to 999.999
                 for (@item) {
                   if (ref $_ && defined $$_[0]) {
                     $return += $$_[0];
                   } elsif ($_ eq "tusen") {
                     $return = ($return>0) ? $return * 1000 : 1000;
                   }
                 }
               }

      million: millenium(?) century(?) decade(?)                      # try to find words that represents values
               'millioner'                                            # from 1.000.000 to 999.999.999
               millenium(?) century(?) decade(?)
               { $return = 0;
                 for (@item) {
                   if (ref $_ && defined $$_[0]) {
                     $return += $$_[0];
                   } elsif ($_ eq "millioner") {
                     $return = ($return>0) ? $return * 1000000 : 1000000;
                   }
                 }
               }
    });
}

# }}}

1;

__END__