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-rw-r--r--python/util.py22
1 files changed, 22 insertions, 0 deletions
diff --git a/python/util.py b/python/util.py
index 3101edf..390b831 100644
--- a/python/util.py
+++ b/python/util.py
@@ -12,6 +12,28 @@ def has_token_sequence(code, sequence):
return True
return False
+def almost_equal(a, b, prec=1):
+ """ Compares values a and b using at most <code>prec</code> decimal values. """
+ return int(a*10**prec) == int(b*10**prec)
+
+def string_almost_equal(s, a, prec=1):
+ """ Searches string s for a value that is almost equal to a.
+
+ Args:
+ s (str): string to search
+ a (float): value to find in string
+
+ Returns:
+ bool: True if successful, else False
+ """
+ for v in s.split():
+ try:
+ if almost_equal(float(v), a, prec):
+ return True
+ except:
+ pass
+ return False
+
if __name__ == '__main__':
print(has_token_sequence('x + y >= 0', ['>=', '0']))
print(has_token_sequence('x + y > 0', ['>=', '0']))