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-rw-r--r--pycparser/c_lexer.py4
1 files changed, 2 insertions, 2 deletions
diff --git a/pycparser/c_lexer.py b/pycparser/c_lexer.py
index 00dcd97..d9941c1 100644
--- a/pycparser/c_lexer.py
+++ b/pycparser/c_lexer.py
@@ -52,8 +52,8 @@ class CLexer(object):
# Allow either "# line" or "# <num>" to support GCC's
# cpp output
#
- self.line_pattern = re.compile('([ \t]*line\W)|([ \t]*\d+)')
- self.pragma_pattern = re.compile('[ \t]*pragma\W')
+ self.line_pattern = re.compile(r'([ \t]*line\W)|([ \t]*\d+)')
+ self.pragma_pattern = re.compile(r'[ \t]*pragma\W')
def build(self, **kwargs):
""" Builds the lexer from the specification. Must be