from collections import OrderedDict
def escape_assertion(s):
"""escapes the dots in the assertion, because the expression evaluation doesn't support such variable names."""
s = s.replace("r.", "r_")
s = s.replace("p.", "p_")
return s
def remove_comments(s):
"""removes the comments starting with # in the text."""
pos = s.find("#")
if pos == -1:
return s
return s[0:pos].strip()
def array_remove_duplicates(s):
"""removes any duplicated elements in a string array."""
return list(OrderedDict.fromkeys(s))
def array_to_string(s):
"""gets a printable string for a string array."""
return ", ".join(s)
def params_to_string(*s):
"""gets a printable string for variable number of parameters."""
return ", ".join(s)
def join_slice(a, *b):
''' joins a string and a slice into a new slice.'''
res = [a]
res.extend(b)
return res
def set_subtract(a, b):
''' returns the elements in `a` that aren't in `b`. '''
mb = dict()
for x in b:
mb[x] = True
diff = list()
for x in a:
if x not in mb:
diff.append(x)
return diff
