100 lines
2.8 KiB
Python
100 lines
2.8 KiB
Python
import tokenizer
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import ctoken
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import expression
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import jsonpickle
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import copy
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variables = {}
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def print_vars(vars):
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i = 0
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for key in vars.keys():
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var = vars[key]
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if i != 0:
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print(", %s" %(var.name), end = "")
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else:
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print("%s " %(var.name), end = "")
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i += 1
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print()
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def modify_variable(var, vars):
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print("%s is now selected." %(var.name))
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print("The following properties are avaliable: Variable Type, Starting Point and Ending Point.")
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print('Commands are "type", "start" and "end", respectly.')
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while True:
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response = input("Select a property to modify for %s or q to exit property modifying: " %(var.name))
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if response == "type":
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response = input("Enter the type of variable this is (currently %s) or c to cancel: " %(var.type))
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if response == "c" or response == "C":
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continue
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vars[var.name].type = response
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print("Updated to %s." %(response))
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elif response == "start":
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response = input("Enter the variable's starting point (currently %f) or c to cancel: " %(var.starting_point))
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if response == "c" or response == "C":
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continue
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try:
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vars[var.name].starting_point = float(response)
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print("Updated to %f." %(float(response)))
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except ValueError:
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print("The starting point must be a number.")
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elif response == "end":
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response = input("Enter the variable's ending point (currently %f) or c to cancel: " %(var.ending_point))
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if response == "c" or response == "C":
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continue
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elif response == "q":
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return
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else:
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print('Invalid property "%s".' %(response))
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print('Commands are "type", "start" and "end".')
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exp = input("Enter the expression the student will use: ")
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wrong_response = input("Enter the wrong response for the expression: ")
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try:
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wrong_response = float(wrong_response)
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except ValueError:
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print("The anwser must be numeric! Will not be included in output file.")
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tokens = tokenizer.get_tokens_from_expression_string(exp)
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rev_tokens = copy.deepcopy(tokens)
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rev_tokens.reverse()
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for t in rev_tokens:
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if t.type == ctoken.TokenType.variable:
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variables[t.value] = expression.Variable(t.value, expression.Variable.get_variable_type(t.value))
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selected_variable = None
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while True:
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print("Variables in expression:")
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print_vars(variables)
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response = input("Enter a variable name to modify its properties or continue (default): ")
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if response == "continue" or response == "":
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break
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if response in variables:
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selected_variable = variables[response]
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if selected_variable != None:
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modify_variable(selected_variable, variables)
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else:
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print("Invalid selection %s." %(response))
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continue
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with open("expression.json", "w", encoding="utf-8") as f:
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obj = jsonpickle.encode(expression.Expression(exp, variables, wrong_response))
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f.write(obj)
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f.close()
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#json.dump(expression.Expression(exp, variables, correct_answer), f, default=transform, indent = 4)
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