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SF #989185: Drop unicode.iswide() and unicode.width() and add

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unicodedata.east_asian_width().  You can still implement your own
simple width() function using it like this:
    def width(u):
        w = 0
        for c in unicodedata.normalize('NFC', u):
            cwidth = unicodedata.east_asian_width(c)
            if cwidth in ('W', 'F'): w += 2
            else: w += 1
        return w
This commit is contained in:
Hye-Shik Chang 2004-08-04 07:38:35 +00:00
parent b5047fd019
commit e9ddfbb412
15 changed files with 1641 additions and 1617 deletions
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25
Lib/test/string_tests.py
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@ -695,28 +695,3 @@ class MixinStrUserStringTest:
self.checkraises(TypeError, 'xyz', 'decode', 42)
self.checkraises(TypeError, 'xyz', 'encode', 42)
class MixinUnicodeUserStringTest:
# Additional tests that only work with
# unicode compatible object, i.e. unicode and UserString
def test_iswide(self):
self.checkequal(False, u'', 'iswide')
self.checkequal(False, u'\x1f', 'iswide') # Neutral
self.checkequal(False, u'\x20', 'iswide') # Narrow
self.checkequal(True, u'\u2329', 'iswide') # Wide
self.checkequal(False, u'\uff64', 'iswide') # Half
self.checkequal(True, u'\u3000', 'iswide') # Full
self.checkequal(False, u'\u2460', 'iswide') # Ambiguous
self.checkequal(True, u'\ud55c\uae00', 'iswide')
self.checkequal(False, u'\ud55c\u2606\uae00', 'iswide')
def test_width(self):
self.checkequal(0, u'', 'width')
self.checkequal(4, u'abcd', 'width')
self.checkequal(2, u'\u0187\u01c9', 'width')
self.checkequal(3, u'\u2460\u2329', 'width')
self.checkequal(3, u'\u2329\u2460', 'width')
self.checkequal(4, u'\ud55c\uae00', 'width')
self.checkequal(5, u'\ud55c\u2606\uae00', 'width')