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python: Fix invalid escape sequences.

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It appears that Python silently treats invalid escape sequences in
strings as literals, e.g. "\." is the same as "\\.".  Newer versions of
checkpatch complain, and it does seem reasonable to me to fix these.

Acked-by: Numan Siddique <nusiddiq@redhat.com>
Tested-by: Numan Siddique <nusiddiq@redhat.com>
Signed-off-by: Ben Pfaff <blp@ovn.org>
This commit is contained in:
Ben Pfaff
2019-01-10 15:23:45 -08:00
parent 70506167a5
commit 145a7e88bb
9 changed files with 22 additions and 22 deletions
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4
python/ovs/json.py
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@@ -177,7 +177,7 @@ class Parser(object):
return False
__number_re = re.compile("(-)?(0|[1-9][0-9]*)"
"(?:\.([0-9]+))?(?:[eE]([-+]?[0-9]+))?$")
r"(?:\.([0-9]+))?(?:[eE]([-+]?[0-9]+))?$")
def __lex_finish_number(self):
s = self.buffer
@@ -234,7 +234,7 @@ class Parser(object):
self.__error("leading zeros not allowed")
elif re.match("-([^0-9]|$)", s):
self.__error("'-' must be followed by digit")
elif re.match("-?(0|[1-9][0-9]*)\.([^0-9]|$)", s):
elif re.match(r"-?(0|[1-9][0-9]*)\.([^0-9]|$)", s):
self.__error("decimal point must be followed by digit")
elif re.search("e[-+]?([^0-9]|$)", s):
self.__error("exponent must contain at least one digit")