diff options
Diffstat (limited to 'Lib')
| -rw-r--r-- | Lib/string.py | 12 | ||||
| -rw-r--r-- | Lib/test/string_tests.py | 20 |
2 files changed, 32 insertions, 0 deletions
diff --git a/Lib/string.py b/Lib/string.py index 0a77f46..bc10c20 100644 --- a/Lib/string.py +++ b/Lib/string.py @@ -121,6 +121,18 @@ def split(s, sep=None, maxsplit=-1): return s.split(sep, maxsplit) splitfields = split +# Split a string into a list of space/tab-separated words +def rsplit(s, sep=None, maxsplit=-1): + """rsplit(s [,sep [,maxsplit]]) -> list of strings + + Return a list of the words in the string s, using sep as the + delimiter string, starting at the end of the string and working + to the front. If maxsplit is given, at most maxsplit splits are + done. If sep is not specified or is None, any whitespace string + is a separator. + """ + return s.rsplit(sep, maxsplit) + # Join fields with optional separator def join(words, sep = ' '): """join(list [,sep]) -> string diff --git a/Lib/test/string_tests.py b/Lib/test/string_tests.py index 236c577..c3e53ad 100644 --- a/Lib/test/string_tests.py +++ b/Lib/test/string_tests.py @@ -189,6 +189,26 @@ class CommonTest(unittest.TestCase): self.checkraises(TypeError, 'hello', 'split', 42, 42, 42) + def test_rsplit(self): + self.checkequal(['this', 'is', 'the', 'rsplit', 'function'], + 'this is the rsplit function', 'rsplit') + self.checkequal(['a', 'b', 'c', 'd'], 'a|b|c|d', 'rsplit', '|') + self.checkequal(['a|b', 'c', 'd'], 'a|b|c|d', 'rsplit', '|', 2) + self.checkequal(['a b c', 'd'], 'a b c d', 'rsplit', None, 1) + self.checkequal(['a b', 'c', 'd'], 'a b c d', 'rsplit', None, 2) + self.checkequal(['a', 'b', 'c', 'd'], 'a b c d', 'rsplit', None, 3) + self.checkequal(['a', 'b', 'c', 'd'], 'a b c d', 'rsplit', None, 4) + self.checkequal(['a b c d'], 'a b c d', 'rsplit', None, 0) + self.checkequal(['a, b, c', 'd'], 'a, b, c, d', 'rsplit', ', ', 1) + self.checkequal(['a, b', 'c', 'd'], 'a, b, c, d', 'rsplit', ', ', 2) + self.checkequal(['a', 'b', 'c', 'd'], 'a, b, c, d', 'rsplit', ', ', 3) + self.checkequal(['a', 'b', 'c', 'd'], 'a, b, c, d', 'rsplit', ', ', 4) + self.checkequal(['a, b, c, d'], 'a, b, c, d', 'rsplit', ', ', 0) + self.checkequal(['a b', 'c', 'd'], 'a b c d', 'rsplit', None, 2) + self.checkequal(['a\x00b', 'c'], 'a\x00b\x00c', 'rsplit', '\x00', 1) + self.checkequal(['', ''], 'abcd', 'rsplit', 'abcd') + self.checkequal([u'a b', u'c', u'd'], 'a b c d', 'rsplit', u' ', 2) + def test_strip(self): self.checkequal('hello', ' hello ', 'strip') self.checkequal('hello ', ' hello ', 'lstrip') |