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>>> import re2 as re
>>> import warnings
>>> warnings.filterwarnings('ignore', category=DeprecationWarning)
character literals:
>>> i = 126
>>> re.compile(r"\%03o" % i)
re2.compile('\\176')
>>> re.compile(r"\%03o" % i)._dump_pattern()
'\\176'
>>> re.match(r"\%03o" % i, chr(i)) is None
False
>>> re.match(r"\%03o0" % i, chr(i) + "0") is None
False
>>> re.match(r"\%03o8" % i, chr(i) + "8") is None
False
>>> re.match(r"\x%02x" % i, chr(i)) is None
False
>>> re.match(r"\x%02x0" % i, chr(i) + "0") is None
False
>>> re.match(r"\x%02xz" % i, chr(i) + "z") is None
False
>>> re.match("\911", "") # doctest: +IGNORE_EXCEPTION_DETAIL +ELLIPSIS
Traceback (most recent call last):
...
re.error: invalid escape sequence: \9
character class literals:
>>> re.match(r"[\%03o]" % i, chr(i)) is None
False
>>> re.match(r"[\%03o0]" % i, chr(i) + "0") is None
False
>>> re.match(r"[\%03o8]" % i, chr(i) + "8") is None
False
>>> re.match(r"[\x%02x]" % i, chr(i)) is None
False
>>> re.match(r"[\x%02x0]" % i, chr(i) + "0") is None
False
>>> re.match(r"[\x%02xz]" % i, chr(i) + "z") is None
False
>>> re.match("[\911]", "") # doctest: +IGNORE_EXCEPTION_DETAIL +ELLIPSIS
Traceback (most recent call last):
...
re.error: invalid escape sequence: \9
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