def test_single_backslash(self):
for inp, exp in [ ('\\', ''),
('\\ ', ' '),
('a\\', 'a'),
('\\a', 'a'),
('a\\b\\c\\d', 'abcd') ]:
assert_equals(unescape(inp), exp, inp)
def test_multiple_backslash(self):
for inp, exp in [ ('\\\\', '\\'),
('\\\\\\', '\\'),
('\\\\\\\\', '\\\\'),
('x\\\\x', 'x\\x'),
('x\\\\\\x', 'x\\x'),
('x\\\\\\\\x', 'x\\\\x') ]:
assert_equals(unescape(inp), exp, inp)
def test_tab(self):
for inp, exp in [ ('\\t', '\t'),
('\\\\t', '\\t'),
('\\\\\\t', '\\\t'),
('\\t ', '\t '),
('\\\\t ', '\\t '),
('\\\\\\t ', '\\\t '),
('\\tx', '\tx'),
('\\\\tx', '\\tx'),
('\\\\\\tx', '\\\tx'),
('\\t x', '\t x'),
('\\\\t x', '\\t x'),
('\\\\\\t x', '\\\t x') ]:
assert_equals(unescape(inp), exp, inp)
def test_cr(self):
for inp, exp in [ ('\\r', '\r'),
('\\\\r', '\\r'),
('\\\\\\r', '\\\r'),
('\\r ', '\r '),
('\\\\r ', '\\r '),
('\\\\\\r ', '\\\r '),
('\\rx', '\rx'),
('\\\\rx', '\\rx'),
('\\\\\\rx', '\\\rx'),
('\\r x', '\r x'),
('\\\\r x', '\\r x'),
('\\\\\\r x', '\\\r x') ]:
assert_equals(unescape(inp), exp, inp)
def test_lf(self):
for inp, exp in [ ('\\n', '\n'),
('\\\\n', '\\n'),
('\\\\\\n', '\\\n'),
('\\n ', '\n'),
('\\\\n ', '\\n '),
('\\\\\\n ', '\\\n'),
('\\nx', '\nx'),
('\\\\nx', '\\nx'),
('\\\\\\nx', '\\\nx'),
('\\n x', '\nx'),
('\\\\n x', '\\n x'),
('\\\\\\n x', '\\\nx') ]:
assert_equals(unescape(inp), exp, "'%s'" % inp)
def assert_unescape(inp, exp):
assert_equals(unescape(inp), exp, repr(inp))
def test_no_unescape(self):
for inp in [ 'no escapes', '' ]:
assert_equals(unescape(inp), inp)