Merge pull request #91 from olix20/master

Added support for Dutch language (NL)

README.rst

@@ -4,8 +4,8 @@ num2words - Convert numbers to words in multiple languages
 .. image:: https://travis-ci.org/savoirfairelinux/num2words.svg?branch=master
     :target: https://travis-ci.org/savoirfairelinux/num2words
 
-``num2words`` is a library that converts numbers like ``42`` to words like
+``num2words`` is a library that converts numbers like ``42`` to words like ``forty-two``. 
-``forty-two``. It supports multiple languages (see the list below for full list
+It supports multiple languages (see the list below for full list
 of languages) and can even generate ordinal numbers like ``forty-second``
 (although this last feature is a bit buggy for some languages at the moment).
 
@@ -70,6 +70,7 @@ cardinal one.
 * ``ru`` (Russian)
 * ``tr`` (Turkish)
 * ``vn`` (Vietnamese)
+* ``nl`` (Dutch)
 * ``uk`` (Ukrainian)
 
 You can supply values like ``fr_FR``, the code will be correctly interpreted. If

num2words/__init__.py

@@ -39,9 +39,9 @@ from . import lang_ES_VE
 from . import lang_ES_CO
 from . import lang_VN
 from . import lang_TR
+from . import lang_NL
 from . import lang_UK
 
-
 CONVERTER_CLASSES = {
     'ar': lang_AR.Num2Word_AR(),
     'en': lang_EN.Num2Word_EN(),
@@ -66,6 +66,7 @@ CONVERTER_CLASSES = {
     'it': lang_IT.Num2Word_IT(),
     'vi_VN': lang_VN.Num2Word_VN(),
     'tr': lang_TR.Num2Word_TR(),
+    'nl': lang_NL.Num2Word_NL(),
     'uk': lang_UK.Num2Word_UK()
 }
 

num2words/lang_NL.py

@@ -0,0 +1,154 @@
+# -*- coding: utf-8 -*-
+# Copyright (c) 2003, Taro Ogawa.  All Rights Reserved.
+# Copyright (c) 2013, Savoir-faire Linux inc.  All Rights Reserved.
+
+# This library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public
+# License as published by the Free Software Foundation; either
+# version 2.1 of the License, or (at your option) any later version.
+# This library 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
+# Lesser General Public License for more details.
+# You should have received a copy of the GNU Lesser General Public
+# License along with this library; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
+# MA 02110-1301 USA
+
+from __future__ import unicode_literals, print_function
+from .lang_EU import Num2Word_EU
+
+class Num2Word_NL(Num2Word_EU):
+    def set_high_numwords(self, high):
+        max = 3 + 6*len(high)
+
+        for word, n in zip(high, range(max, 3, -6)):
+            self.cards[10**n] = word + "iljard"
+            self.cards[10**(n-3)] = word + "iljoen"
+
+    def setup(self):
+        self.negword = "min "
+        self.pointword = "komma"
+        self.errmsg_floatord = "Het zwevende puntnummer %s kan niet omgezet worden naar een ordernummer." # "Cannot treat float %s as ordinal."
+        self.errmsg_nonnum = "Alleen nummers (type (%s)) kunnen naar woorden omgezet worden." # "type(((type(%s)) ) not in [long, int, float]"
+        self.errmsg_negord = "Het negatieve getal %s kan niet omgezet worden naar een ordernummer." # "Cannot treat negative num %s as ordinal."
+        self.errmsg_toobig = "Het getal %s moet minder zijn dan %s." # "abs(%s) must be less than %s."
+        self.exclude_title = []
+
+        lows = ["non", "okt", "sept", "sext", "quint", "quadr", "tr", "b", "m"]
+        units = ["", "un", "duo", "tre", "quattuor", "quin", "sex", "sept",
+                 "okto", "novem"]
+        tens = ["dez", "vigint", "trigint", "quadragint", "quinquagint",
+                "sexagint", "septuagint", "oktogint", "nonagint"]
+
+
+
+
+        self.high_numwords = ["zend"]+self.gen_high_numwords(units, tens, lows)
+        self.mid_numwords = [(1000, "duizend"), (100, "honderd"),
+                             (90, "negentig"), (80, "tachtig"), (70, "zeventig"),
+                             (60, "zestig"), (50, "vijftig"), (40, "veertig"),
+                             (30, "dertig")]
+        self.low_numwords = ["twintig", "negentien", "achttien", "zeventien",
+                             "zestien", "vijftien", "veertien", "dertien",
+                             "twaalf", "elf", "tien", "negen", "acht", "zeven",
+                             "zes", "vijf", "vier", "drie", "twee", "één",
+                             "nul"]
+
+        self.ords = {"één": "eerst",
+                    "twee": "tweed",
+                     "drie": "derd",
+                     "vier": "vierd",
+                     "vijf": "vijfd",
+                     "zes": "zesd",
+                     "zeven": "zevend",                     
+                     "acht": "achtst",
+                     "negen": "negend",
+                     "tien":"tiend",
+                     "elf":"elfd",
+                     "twaalf":"twaalfd",
+
+                     "ig": "igst",
+                     "erd": "erdst",
+                     "end": "endst",
+                     "joen": "joenst",
+                     "rd": "rdst"}
+
+    def merge(self, curr, next):
+        ctext, cnum, ntext, nnum = curr + next
+
+        if cnum == 1:
+            if nnum < 10**6:
+                return next
+            ctext = "een"
+
+        if nnum > cnum:
+            if nnum >= 10**6:
+                ctext += " "
+            val = cnum * nnum
+        else:
+            if nnum < 10 < cnum < 100:
+                if nnum == 1:
+                    ntext = "een"
+
+                if ntext.endswith("e"):
+                        ntext += "ën"#"n"
+                else:
+                        ntext += "en"     
+                ntext, ctext = ctext, ntext #+ "en"
+            elif cnum >= 10**6:
+                ctext += " "
+            val = cnum + nnum
+
+        word = ctext + ntext
+        return (word, val)
+
+    def to_ordinal(self, value):
+        self.verify_ordinal(value)
+        outword = self.to_cardinal(value)
+        for key in self.ords:
+            if outword.endswith(key):
+                outword = outword[:len(outword) - len(key)] + self.ords[key]
+                break
+        return outword + "e"
+
+    def to_ordinal_num(self, value):
+        self.verify_ordinal(value)
+        return str(value) + "."
+
+    def to_currency(self, val, longval=True, old=False):
+        if old:
+            return self.to_splitnum(val, hightxt="euro/s", lowtxt="cent/s",
+                                    jointxt="en",longval=longval)
+        return super(Num2Word_NL, self).to_currency(val, jointxt="en",
+                                                    longval=longval)
+
+    def to_year(self, val, longval=True):
+        if not (val//100)%10:
+            return self.to_cardinal(val)
+        return self.to_splitnum(val, hightxt="honderd", longval=longval)
+
+n2w = Num2Word_NL()
+to_card = n2w.to_cardinal
+to_ord = n2w.to_ordinal
+to_ordnum = n2w.to_ordinal_num
+
+
+def main():
+    for val in [1, 7, 8, 12, 17, 62,81, 91, 99, 100, 101, 102, 155,
+             180, 300, 308, 832, 1000, 1001, 1061,1062, 1100, 1500, 1701, 3000,
+             8280, 8291, 150000, 500000, 3000000, 1000000, 2000001, 1000000000, 2000000000,
+             -21212121211221211111, -2.121212, -1.0000100]:
+        n2w.test(val)
+
+    n2w.test(3000000)
+    n2w.test(3000000000001)
+    n2w.test(3000000324566)
+    print(n2w.to_currency(112121))
+    print(n2w.to_year(2000))
+    print(n2w.to_year(1820))
+    print(n2w.to_year(2001))
+
+if __name__ == "__main__":
+    main()
+

tests/test_nl.py

@@ -0,0 +1,53 @@
+# -*- encoding: utf-8 -*-
+# Copyright (c) 2015, Savoir-faire Linux inc.  All Rights Reserved.
+
+# This library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public
+# License as published by the Free Software Foundation; either
+# version 2.1 of the License, or (at your option) any later version.
+# This library 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
+# Lesser General Public License for more details.
+# You should have received a copy of the GNU Lesser General Public
+# License along with this library; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
+# MA 02110-1301 USA
+
+from __future__ import unicode_literals
+
+from unittest import TestCase
+
+from num2words import num2words
+
+class Num2WordsNLTest(TestCase):
+    def test_ordinal_less_than_twenty(self):
+        self.assertEqual(num2words(7, ordinal=True, lang='nl'), "zevende")
+        self.assertEqual(num2words(8, ordinal=True, lang='nl'), "achtste")
+        self.assertEqual(num2words(12, ordinal=True, lang='nl'), "twaalfde")
+        self.assertEqual(num2words(17, ordinal=True, lang='nl'), "zeventiende")
+
+    def test_ordinal_more_than_twenty(self):
+        self.assertEqual(num2words(81, ordinal=True, lang='nl'), "eenentachtigste")
+
+    def test_ordinal_at_crucial_number(self):
+        self.assertEqual(num2words(100, ordinal=True, lang='nl'), "honderdste")
+        self.assertEqual(num2words(1000, ordinal=True, lang='nl'), "duizendste")
+        self.assertEqual(num2words(4000, ordinal=True, lang='nl'), "vierduizendste")
+        self.assertEqual(num2words(2000000, ordinal=True, lang='nl'), "twee miljoenste")
+        self.assertEqual(num2words(5000000000, ordinal=True, lang='nl'), "vijf miljardste")
+
+    def test_cardinal_at_some_numbers(self):
+        self.assertEqual(num2words(82, lang='nl'), u'twee\xebntachtig')        
+        self.assertEqual(num2words(1013, lang='nl'), "duizenddertien")
+        self.assertEqual(num2words(2000000, lang='nl'), "twee miljoen")
+        self.assertEqual(num2words(4000000000, lang='nl'), "vier miljard")
+
+    def test_cardinal_for_decimal_number(self):
+        self.assertEqual(num2words(3.486, lang='nl'), "drie komma vier acht")
+
+    def test_ordinal_for_negative_numbers(self):
+        self.assertRaises(TypeError, num2words, -12, ordinal=True, lang='nl')
+
+    def test_ordinal_for_floating_numbers(self):
+        self.assertRaises(TypeError, num2words, 2.453, ordinal=True, lang='nl')