34 def getVariable(name, variables, pos):  argument
35   if name in variables:
36     return variables[name]
38     Logger.testFailed("Missing definition of variable \"{}\"".format(name), pos, variables)
40 def setVariable(name, value, variables, pos):  argument
41   if name not in variables:
42     return variables.copyWith(name, value)
44     Logger.testFailed("Multiple definitions of variable \"{}\"".format(name), pos, variables)
46 def matchWords(checkerWord, stringWord, variables, pos):  argument
53       pattern = re.escape(getVariable(expression.name, variables, pos))
65       variables = setVariable(expression.name, stringWord[:match.end()], variables, pos)
74   return variables
76 def MatchLines(checkerLine, stringLine, variables):  argument
93       newVariables = matchWords(checkerWord, stringWord, variables, checkerLine)
96         variables = newVariables
102   return variables
104 def getEvalText(expression, variables, pos):  argument
109     return getVariable(expression.name, variables, pos)
111 def EvaluateLine(checkerLine, variables):  argument
113   eval_string = "".join(map(lambda expr: getEvalText(expr, variables, checkerLine),