try to find the bug...
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Lafrite
parent
e0ba4c09a9
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9d7f43bb20
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@ -11,10 +11,10 @@ from .random_expression import RdExpression
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__all__ = ['Expression']
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class Expression(Explicable):
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"""A calculus expression. Today it can andle only expression with numbers later it will be able to manipulate unknown"""
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@classmethod
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def random(self, form="", conditions=[], val_min = -10, val_max=10):
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"""Create a random expression from form and with conditions
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@ -86,7 +86,8 @@ class Expression(Explicable):
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if len(expression.postfix_tokens) == 1:
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token = expression.postfix_tokens[0]
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if hasattr(token, 'simplify') and hasattr(token, 'explain'):
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return expression.postfix_tokens[0]
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ans = expression.postfix_tokens[0]
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return ans
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elif type(token) == int:
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# On crée un faux int en ajoutant la méthode simplify et simplified et la caractérisique isNumber
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@ -124,14 +125,27 @@ class Expression(Explicable):
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def simplify(self):
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""" Compute entirely the expression and return the result with .steps attribute """
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#from .render import txt
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#with Expression.tmp_render(txt):
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# print("self -> ", self, " --> ", len(self.steps))
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self.compute_exp()
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#with Expression.tmp_render(txt):
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# print("|-> self.child -> ", self.child, " --> ", len(self.child.steps))
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self.simplified = self.child.simplify()
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if self.simplified != self.child:
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try:
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self.simplified.steps = self.child.steps + self.simplified.steps
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except AttributeError:
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pass
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#print('|-- len(self.simplified.steps)=', len(self.child.steps) , " + ", len(self.simplified.steps))
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self.simplified.steps = self.child.steps + self.simplified.steps
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#if self.simplified != self.child:
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# try:
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# self.simplified.steps = self.child.steps + self.simplified.steps
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# except AttributeError as e:
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# #print(e)
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# pass
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#with Expression.tmp_render(txt):
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# print("End self.simplified -> ", self.simplified, " --> ", len(self.simplified.steps))
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return self.simplified
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def compute_exp(self):
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@ -193,26 +207,53 @@ class Expression(Explicable):
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tmpTokenList += tokenList
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self.child = Expression(tmpTokenList)
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#from .render import txt
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#with Expression.tmp_render(txt):
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# print('------------')
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# print("self -> ", self)
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# print("self.child -> ", self.child)
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# print("self.child.steps -> ", [str(i) for i in self.child.steps], ' -- ', len(self.child.steps))
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steps = self.develop_steps(tmpTokenList)
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#with Expression.tmp_render(txt):
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# print('************')
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# print("steps -> ", [str(i) for i in steps], ' -- ', len(steps))
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# print('************')
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#if steps !=[] and ini_step != steps[0]:
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# self.child.steps = [ini_step] + steps
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#else:
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# self.child.steps = steps
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if self.child.postfix_tokens == ini_step.postfix_tokens:
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self.child.steps = self.develop_steps(tmpTokenList)
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self.child.steps = steps
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else:
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self.child.steps = [ini_step] + self.develop_steps(tmpTokenList)
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self.child.steps = [ini_step] + steps
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#with Expression.tmp_render(txt):
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# print('++++')
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# print("self.child.steps -> ", [str(i) for i in self.child.steps], ' -- ', len(self.child.steps))
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def develop_steps(self, tokenList):
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""" From a list of tokens, it develops steps of each tokens """
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# TODO: Attention les étapes sont dans le mauvais sens |lun. avril 20 10:06:03 CEST 2015
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print("---- develop_steps ------")
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print("tokenList -> ", tokenList)
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tmp_steps = []
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with Expression.tmp_render():
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for t in tokenList:
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if hasattr(t, "explain"):
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tmp_steps.append([i for i in t.explain()])
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else:
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tmp_steps.append(t)
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if max([len(i) if type(i) == list else 1 for i in tmp_steps]) == 1:
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tmp_steps.append([t])
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print("tmp_steps -> ", tmp_steps)
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if max([len(i) for i in tmp_steps]) == 1:
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# Cas où rien n'a dû être expliqué.
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return []
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else:
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tmp_steps = expand_list(tmp_steps)[:-1]
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steps = [Expression(s) for s in tmp_steps]
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print("steps -> ", steps)
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return steps
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@classmethod
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@ -347,105 +388,31 @@ def untest(exp):
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print("\n")
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if __name__ == '__main__':
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#render = lambda _,x : str(x)
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#Expression.set_render(render)
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#exp = Expression("1/2 - 4")
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#print(list(exp.simplify()))
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#Expression.set_render(txt)
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#exp = "2 ^ 3 * 5"
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#untest(exp)
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#exp = "2x + 5"
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#untest(exp)
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#Expression.set_render(tex)
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#untest(exp1)
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#from pymath.operator import op
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#exp = [2, 3, op.pw, 5, op.mul]
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#untest(exp)
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#untest([Expression(exp1), Expression(exp), op.add])
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#exp = "1 + 3 * 5"
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#e = Expression(exp)
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#f = -e
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#print(f)
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#exp = "2 * 3 * 3 * 5"
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#untest(exp)
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#exp = "2 * 3 + 3 * 5"
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#untest(exp)
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#exp = "2 * ( 3 + 4 ) + 3 * 5"
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#untest(exp)
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#exp = "2 * ( 3 + 4 ) + ( 3 - 4 ) * 5"
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#untest(exp)
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#
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#exp = "2 * ( 2 - ( 3 + 4 ) ) + ( 3 - 4 ) * 5"
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#untest(exp)
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#
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#exp = "2 * ( 2 - ( 3 + 4 ) ) + 5 * ( 3 - 4 )"
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#untest(exp)
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#
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#exp = "2 + 5 * ( 3 - 4 )"
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#untest(exp)
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#exp = "( 2 + 5 ) * ( 3 - 4 )^4"
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#untest(exp)
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#exp = "( 2 + 5 ) * ( 3 * 4 )"
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#untest(exp)
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#exp = "( 2 + 5 - 1 ) / ( 3 * 4 )"
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#untest(exp)
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#exp = "( 2 + 5 ) / ( 3 * 4 ) + 1 / 12"
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#untest(exp)
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#exp = "( 2+ 5 )/( 3 * 4 ) + 1 / 2"
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#untest(exp)
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#exp="(-2+5)/(3*4)+1/12+5*5"
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#untest(exp)
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#exp="-2*4(12 + 1)(3-12)"
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#untest(exp)
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#exp="(-2+5)/(3*4)+1/12+5*5"
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#untest(exp)
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# TODO: The next one doesn't work |ven. janv. 17 14:56:58 CET 2014
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#exp="-2*(-a)(12 + 1)(3-12)"
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#e = Expression(exp)
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#print(e)
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## Can't handle it yet!!
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#exp="-(-2)"
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#untest(exp)
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#print("\n")
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#exp = Expression.random("({a} + 3)({b} - 1)", ["{a} > 4"])
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#for i in exp.simplify():
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#print('\n')
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#A = Expression.random("( -8 x + 8 ) ( -8 - ( -6 x ) )")
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#Ar = A.simplify()
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#print("Ar.steps -> ", Ar.steps)
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#for i in Ar.steps:
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# print(i)
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#print("------------")
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#for i in Ar.explain():
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# print(i)
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from .fraction import Fraction
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f1 = Fraction(3,5)
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f2 = Fraction(5,10)
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q = f1+f2
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print("---------")
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print(q.steps)
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print("---------")
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for i in q.explain():
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print(i)
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#print(type(Ar))
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print('\n-----------')
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A = Expression.random("2 / 3 + 4 / 5")
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Ar = A.simplify()
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#print("Ar.steps -> ", Ar.steps)
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#for i in Ar.steps:
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# print(i)
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#print("------------")
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#for i in Ar.explain():
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# print(i)
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#print(type(Ar))
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#import doctest
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#doctest.testmod()
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