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@@ -1,3 +1,49 @@
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+from Tkinter import *
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+
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+def toList(text):
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+ a = text.splitlines()
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+ L = []
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+ for i in a:
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+ s = ""
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+ z = True
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+ for j in i:
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+ #print j
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+ if j not in '+-*/':
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+ s += j
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+ z = True
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+ else:
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+ if s:
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+ L.append(s)
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+ if j:
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+ L.append(j)
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+ s = ""
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+ z = False
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+ if i[-1] in '+-*/':
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+ if z and j:
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+ L.append(j)
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+ else:
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+ if z and s:
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+ L.append(s)
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+ return L
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+
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+def Stack(i,s,S = None):
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+
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+ if not S:
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+ S = []
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+
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+ if i == len(s):
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+ return S[0]
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+
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+ a = s[i]
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+ if a.isdigit():
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+ S.append(a)
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+ return Stack(s, S, i+1)
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+ else:
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+ c = S.pop()
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+ d = S.pop()
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+
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+ S.append(Grundrechenarten(d,a,c))
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+ return Stack(s, S, i+1)
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def Grundrechenarten(c,a,d):
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49
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@@ -15,41 +61,53 @@ def Grundrechenarten(c,a,d):
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return result
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-def toList(s):
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+#-----------------------------
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65
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- L = []
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- for i in s:
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- if i != '\n':
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- L.append(i)
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- return L
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+def response(event):
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+ I = event.widget['text']
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+
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+ texts = UPN.text.get(1.0,END+'-1c')
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+ #print texts
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71
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-def f(i,s,S = None):
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-
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- if not S:
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- S = []
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-
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- if i == len(s):
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- return S[0]
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-
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- a = s[i]
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- if a.isdigit():
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- S.append(a)
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- return f(i+1,s,S)
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- else:
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- c = S.pop()
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- d = S.pop()
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-
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- S.append(Grundrechenarten(c,a,d))
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- return f(i+1,s,S)
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+ if I == 'DEL':
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+ UPN.text.delete(INSERT + '-1c',INSERT)
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+ elif I == 'Clear':
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+ UPN.text.delete(1.0,END)
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+ elif I == 'Enter':
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+ UPN.text.insert(INSERT,'\n')
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+ elif I == '=':
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+ s = toList(texts)
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+ #print s
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+ UPN.text.insert(END,'\n=\n')
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+ UPN.text.insert(END,f(s))
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+ UPN.text.see('end')
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+def UPN():
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+ root.title('umgekehrte polnische Notation')
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+ root.geometry('400x500+200+100')
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87
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+ UI = LabelFrame(root)
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+ UI.place(x = 1,y = 1,width = 398,height = 124)
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90
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-x = raw_input()
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-s = ""
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-while x != '=\n':
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- s += x
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- x = raw_input() + '\n'
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+ UPN.text = Text(UI)
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+ UPN.text.place(x=1,y=1,width=390,height=116)
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+ Li=[['7','8','9','+','DEL'],
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+ ['4','5','6','-','Enter'],
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+ ['1','2','3','*','='],
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+ ['0','00','.','/','Clear']]
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+
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+ for i in range(len(Li[0])):
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+ for j in range(len(Li)):
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+ bt = Button(root)
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+ bt.place(x=(i+1)*60,y=120+(j+1)*60,width=50,height=50)
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+ bt['text'] = Li[j][i]
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+ bt.bind('<Button-1>',response,add=(root,))
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105
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-print f(0,toList(s))
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+def main():
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+ UPN()
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+ root.mainloop()
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109
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+if __name__ == '__main__':
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+ root = Tk()
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+ main()
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113
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