From b64bca985283716bd86cde2876808a0b46937081 Mon Sep 17 00:00:00 2001
From: Antoine Pitrou <solipsis@pitrou.net>
Date: Thu, 23 Oct 2014 22:52:31 +0200
Subject: =?UTF-8?q?Issue=20#13918:=20Provide=20a=20locale.delocalize()=20f?=
 =?UTF-8?q?unction=20which=20can=20remove=20locale-specific=20number=20for?=
 =?UTF-8?q?matting=20from=20a=20string=20representing=20a=20number,=20with?=
 =?UTF-8?q?out=20then=20converting=20it=20to=20a=20specific=20type.=20=20P?=
 =?UTF-8?q?atch=20by=20C=C3=A9dric=20Krier.?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 Doc/library/locale.rst  |  8 ++++++++
 Lib/locale.py           | 15 ++++++++------
 Lib/test/test_locale.py | 54 +++++++++++++++++++++++++++++++++++++++++++++++++
 Misc/NEWS               |  4 ++++
 4 files changed, 75 insertions(+), 6 deletions(-)

diff --git a/Doc/library/locale.rst b/Doc/library/locale.rst
index 9600193..c3a530c 100644
--- a/Doc/library/locale.rst
+++ b/Doc/library/locale.rst
@@ -387,6 +387,14 @@ The :mod:`locale` module defines the following exception and functions:
    ``str(float)``, but takes the decimal point into account.
 
 
+.. function:: delocalize(string)
+
+    Converts a string into a normalized number string, following the
+    :const:'LC_NUMERIC`settings.
+
+    .. versionadded:: 3.5
+
+
 .. function:: atof(string)
 
    Converts a string to a floating point number, following the :const:`LC_NUMERIC`
diff --git a/Lib/locale.py b/Lib/locale.py
index 7ff4356..6b9eb3a 100644
--- a/Lib/locale.py
+++ b/Lib/locale.py
@@ -301,8 +301,8 @@ def str(val):
     """Convert float to integer, taking the locale into account."""
     return format("%.12g", val)
 
-def atof(string, func=float):
-    "Parses a string as a float according to the locale settings."
+def delocalize(string):
+    "Parses a string as a normalized number according to the locale settings."
     #First, get rid of the grouping
     ts = localeconv()['thousands_sep']
     if ts:
@@ -311,12 +311,15 @@ def atof(string, func=float):
     dd = localeconv()['decimal_point']
     if dd:
         string = string.replace(dd, '.')
-    #finally, parse the string
-    return func(string)
+    return string
+
+def atof(string, func=float):
+    "Parses a string as a float according to the locale settings."
+    return func(delocalize(string))
 
-def atoi(str):
+def atoi(string):
     "Converts a string to an integer according to the locale settings."
-    return atof(str, int)
+    return int(delocalize(string))
 
 def _test():
     setlocale(LC_ALL, "")
diff --git a/Lib/test/test_locale.py b/Lib/test/test_locale.py
index e979753..81fe57d 100644
--- a/Lib/test/test_locale.py
+++ b/Lib/test/test_locale.py
@@ -524,5 +524,59 @@ class TestMiscellaneous(unittest.TestCase):
             locale.setlocale(locale.LC_ALL, (b'not', b'valid'))
 
 
+class BaseDelocalizeTest(BaseLocalizedTest):
+
+    def _test_delocalize(self, value, out):
+        self.assertEqual(locale.delocalize(value), out)
+
+    def _test_atof(self, value, out):
+        self.assertEqual(locale.atof(value), out)
+
+    def _test_atoi(self, value, out):
+        self.assertEqual(locale.atoi(value), out)
+
+
+class TestEnUSDelocalize(EnUSCookedTest, BaseDelocalizeTest):
+
+    def test_delocalize(self):
+        self._test_delocalize('50000.00', '50000.00')
+        self._test_delocalize('50,000.00', '50000.00')
+
+    def test_atof(self):
+        self._test_atof('50000.00', 50000.)
+        self._test_atof('50,000.00', 50000.)
+
+    def test_atoi(self):
+        self._test_atoi('50000', 50000)
+        self._test_atoi('50,000', 50000)
+
+
+class TestCDelocalizeTest(CCookedTest, BaseDelocalizeTest):
+
+    def test_delocalize(self):
+        self._test_delocalize('50000.00', '50000.00')
+
+    def test_atof(self):
+        self._test_atof('50000.00', 50000.)
+
+    def test_atoi(self):
+        self._test_atoi('50000', 50000)
+
+
+class TestfrFRDelocalizeTest(FrFRCookedTest, BaseDelocalizeTest):
+
+    def test_delocalize(self):
+        self._test_delocalize('50000,00', '50000.00')
+        self._test_delocalize('50 000,00', '50000.00')
+
+    def test_atof(self):
+        self._test_atof('50000,00', 50000.)
+        self._test_atof('50 000,00', 50000.)
+
+    def test_atoi(self):
+        self._test_atoi('50000', 50000)
+        self._test_atoi('50 000', 50000)
+
+
 if __name__ == '__main__':
     unittest.main()
diff --git a/Misc/NEWS b/Misc/NEWS
index 5e2dbac..0fbe673 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -181,6 +181,10 @@ Core and Builtins
 Library
 -------
 
+- Issue #13918: Provide a locale.delocalize() function which can remove
+  locale-specific number formatting from a string representing a number,
+  without then converting it to a specific type.  Patch by Cédric Krier.
+
 - Issue #22676: Make the pickling of global objects which don't have a
   __module__ attribute less slow.
 
-- 
cgit v0.12