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# For Emacs: -*- mode:cperl; mode:folding; coding:utf-8; -*- |
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package Lingua::LAV::Word2Num; |
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# ABSTRACT: Word to number conversion in Latvian |
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103096
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use 5.16.0; |
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use utf8; |
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use warnings; |
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# {{{ use block |
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use Export::Attrs; |
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use Parse::RecDescent; |
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# }}} |
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# {{{ var block |
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our $VERSION = '0.2603300'; |
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my $parser = lav_numerals(); |
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# }}} |
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# {{{ w2n convert text to number |
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sub w2n :Export { |
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my $input = shift // return; |
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$input =~ s{\s\z}{}xms; |
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return $parser->numeral($input); |
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} |
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# }}} |
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# {{{ lav_numerals create parser for Latvian numerals |
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sub lav_numerals { |
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return Parse::RecDescent->new(q{ |
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numeral: mega |
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| kOhOd |
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| 'nulle' { 0 } |
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| { } |
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44
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number: 'vienpadsmit' { 11 } |
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| 'divpadsmit' { 12 } |
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| 'trīspadsmit' { 13 } |
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| 'četrpadsmit' { 14 } |
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| 'piecpadsmit' { 15 } |
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| 'sešpadsmit' { 16 } |
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| 'septiņpadsmit' { 17 } |
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| 'astoņpadsmit' { 18 } |
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| 'deviņpadsmit' { 19 } |
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| 'viens' { 1 } |
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| 'divi' { 2 } |
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| 'trīs' { 3 } |
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| 'četri' { 4 } |
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| 'pieci' { 5 } |
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| 'seši' { 6 } |
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| 'septiņi' { 7 } |
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| 'astoņi' { 8 } |
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| 'deviņi' { 9 } |
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| 'desmit' { 10 } |
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64
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tens: 'divdesmit' { 20 } |
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| 'trīsdesmit' { 30 } |
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66
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| 'četrdesmit' { 40 } |
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| 'piecdesmit' { 50 } |
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| 'sešdesmit' { 60 } |
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| 'septiņdesmit' { 70 } |
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| 'astoņdesmit' { 80 } |
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| 'deviņdesmit' { 90 } |
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deca: tens number { $item[1] + $item[2] } |
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| tens |
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| number |
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77
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hecto: number /simt(s|i)/ deca { $item[1] * 100 + $item[3] } |
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| number /simt(s|i)/ { $item[1] * 100 } |
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| /simts/ deca { 100 + $item[2] } |
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| /simts/ { 100 } |
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hOd: hecto |
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| deca |
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85
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kilo: hOd /tūkstotis|tūkstoši/ hOd { $item[1] * 1000 + $item[3] } |
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| hOd /tūkstotis|tūkstoši/ { $item[1] * 1000 } |
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kOhOd: kilo |
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| hOd |
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mega: hOd megas kOhOd { $item[1] * 1_000_000 + $item[3] } |
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| hOd megas { $item[1] * 1_000_000 } |
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megas: /miljon(s|i)/ |
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}); |
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} |
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# }}} |
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100
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# {{{ ordinal2cardinal convert ordinal text to cardinal text |
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102
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sub ordinal2cardinal :Export { |
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my $input = shift // return; |
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105
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# Latvian ordinals are adjectival with -ais (masc) / -ā (fem) endings. |
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# Fully suppletive stems for most ordinals. |
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# Compounds: space-separated, only last element is ordinal. |
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109
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my %ordinal_to_cardinal = ( |
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'pirmais' => 'viens', |
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'pirmā' => 'viens', |
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'otrais' => 'divi', |
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'otrā' => 'divi', |
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'trešais' => 'trīs', |
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115
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'trešā' => 'trīs', |
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'ceturtais' => 'četri', |
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'ceturtā' => 'četri', |
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118
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'piektais' => 'pieci', |
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'piektā' => 'pieci', |
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120
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'sestais' => 'seši', |
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'sestā' => 'seši', |
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'septītais' => 'septiņi', |
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123
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'septītā' => 'septiņi', |
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'astotais' => 'astoņi', |
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'astotā' => 'astoņi', |
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'devītais' => 'deviņi', |
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127
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'devītā' => 'deviņi', |
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128
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'desmitais' => 'desmit', |
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'desmitā' => 'desmit', |
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# Teens |
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'vienpadsmitais' => 'vienpadsmit', |
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132
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'vienpadsmitā' => 'vienpadsmit', |
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133
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'divpadsmitais' => 'divpadsmit', |
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'divpadsmitā' => 'divpadsmit', |
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'trīspadsmitais' => 'trīspadsmit', |
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'trīspadsmitā' => 'trīspadsmit', |
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'četrpadsmitais' => 'četrpadsmit', |
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'četrpadsmitā' => 'četrpadsmit', |
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139
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'piecpadsmitais' => 'piecpadsmit', |
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140
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'piecpadsmitā' => 'piecpadsmit', |
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141
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'sešpadsmitais' => 'sešpadsmit', |
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142
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'sešpadsmitā' => 'sešpadsmit', |
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143
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'septiņpadsmitais' => 'septiņpadsmit', |
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144
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'septiņpadsmitā' => 'septiņpadsmit', |
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145
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'astoņpadsmitais' => 'astoņpadsmit', |
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146
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'astoņpadsmitā' => 'astoņpadsmit', |
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147
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'deviņpadsmitais' => 'deviņpadsmit', |
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148
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'deviņpadsmitā' => 'deviņpadsmit', |
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149
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); |
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151
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# Hundreds/thousands ordinals with stem changes — handle before generic compound splitter. |
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152
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# Standalone: "tūkstošais" → "viens tūkstotis" (parser needs number + tūkstotis) |
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153
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# Compound: "divi tūkstošais" → "divi tūkstoši" |
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154
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0
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if ($input =~ m{tūkstošai[s]?\z}xms || $input =~ m{tūkstošā\z}xms) { |
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155
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0
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0
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return 'viens tūkstotis' if $input eq 'tūkstošais'; |
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156
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return 'viens tūkstotis' if $input eq 'tūkstošā'; |
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157
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0
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$input =~ s{tūkstošais\z}{tūkstoši}xms and return $input; |
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158
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$input =~ s{tūkstošā\z}{tūkstoši}xms and return $input; |
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159
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} |
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160
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161
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# Compound: "divdesmit trešais" → convert last part only |
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162
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if ($input =~ m{\s}xms) { |
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163
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my @words = split /\s+/, $input; |
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164
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my $last = pop @words; |
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165
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0
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my $cardinal = ordinal2cardinal($last) // return; |
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166
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push @words, $cardinal; |
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167
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0
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return join ' ', @words; |
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168
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} |
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169
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170
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return $ordinal_to_cardinal{$input} if exists $ordinal_to_cardinal{$input}; |
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171
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172
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# Hundreds ordinal: simtais → simts (parser expects /simts/) |
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173
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0
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$input =~ s{simtais\z}{simts}xms and return $input; |
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174
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0
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$input =~ s{simtā\z}{simts}xms and return $input; |
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176
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# Tens ordinals: strip -ais/-ā from compound tens |
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# divdesmitais → divdesmit, etc. |
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0
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if ($input =~ s{ais\z}{}xms || $input =~ s{ā\z}{}xms) { |
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179
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0
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return $input; |
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180
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} |
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181
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182
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0
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return; # not an ordinal |
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183
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602
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} |
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3
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184
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185
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# }}} |
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186
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187
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1; |
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189
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__END__ |