def eval(expression, k):
exp = InfixTopostfix.menu(expression)
#exp = postfix.menu(expression)
#print exp
count = 0
for i in exp:
#print(i)
if (InfixTopostfix.isOperator(i)):
#if(postfix.isOperator(i)):
count = count + 1
temp = [] # temporary variable -> contains
VarCount = 0 # to count the variables, whether it is ready to be operated on (i.e, 2 vars )
opstack = [] # stack for operator
varstack = [] # stack for operand
t = ""
exp = str(exp)
post = re.findall('\w+|\+|-|\*|/|=', exp)
#print post
l = []
for x in post:
if (InfixTopostfix.isOperand(x)):
l.append(x)
f = open("symbol_original.txt", "a")
for i in l:
if not i.isdigit():
f.write(i)
f.write('\n')
f.close()
store_i = k
temp_list = []
temps = ''
for i in post:
if InfixTopostfix.isOperator(i):
#if postfix.isOperator(i):
x = varstack.pop()
y = varstack.pop()
t = y + i + x
temp.append(t)
if (i != '='):
temps = "t" + str(k)
#print i+"harekal"+temps
temp_list.append(temps)
varstack.append(temps)
k = k + 1
else:
varstack.append(i)
f = open("symbol_temp.txt", "a")
for i in temp_list:
f.write(i)
f.write('\n')
f.close()
i = store_i
t = []
for l in temp:
if i < store_i + count - 1:
#print l
t.append("t" + str(i) + "=" + str(l))
else:
t.append(str(l))
i = i + 1
f = open("inout.txt", "a")
for i in t:
print i
f.write(i)
f.write('\n')
f.close()
return k
def eval(expression, k, tostr):
exp = InfixTopostfix.menu(expression)
# exp = postfix.menu(expression)
# print exp
count = 0
for i in exp:
# print(i)
if InfixTopostfix.isOperator(i):
# if(postfix.isOperator(i)):
count = count + 1
temp = [] # temporary variable -> contains
VarCount = 0 # to count the variables, whether it is ready to be operated on (i.e, 2 vars )
opstack = [] # stack for operator
varstack = [] # stack for operand
t = ""
exp = str(exp)
post = re.findall("\w+|\+|-|\*|/|=", exp)
# print post
l = []
for x in post:
if InfixTopostfix.isOperand(x):
l.append(x)
f = open("symbol_original.txt", "a")
for i in l:
if not i.isdigit():
f.write(i)
f.write("\n")
f.close()
store_i = k
temp_list = []
temps = ""
# print post
t = []
for i in post:
if InfixTopostfix.isOperator(i):
if i != "=":
# if postfix.isOperator(i):
x = varstack.pop()
y = varstack.pop()
t1 = y + i + x
temp.append(t1)
temps = "t" + str(k)
# print i+"harekal"+temps
temp_list.append(temps)
varstack.append(temps)
k = k + 1
elif count == 1:
x = varstack.pop()
y = varstack.pop()
print var, "*" * 80
tostr.append(var)
t.append(str(x) + "=" + str(y))
else:
varstack.append(i)
f = open("symbol_temp.txt", "a")
inv = 0
for i in temp_list:
if inv < len(temp_list) - 1:
f.write(i)
f.write("\n")
inv = inv + 1
f.close()
i = store_i
# print temp, i, 'hellohello'
for l in temp:
if i < store_i + count - 2:
t.append("t" + str(i) + "=" + str(l))
else:
# print varstack
var = varstack.pop()
var = varstack.pop()
# print var
print var, "*" * 80
tostr.append(var)
t.append(str(var) + "=" + str(l))
i = i + 1
f = open("inout.txt", "a")
for i in t:
print i
f.write(i)
f.write("\n")
f.close()
if k == 0:
return 0
return k - 1
def eval(expression, k):
exp = InfixTopostfix.menu(expression)
#exp = postfix.menu(expression)
#print exp
count=0
for i in exp:
#print(i)
if(InfixTopostfix.isOperator(i)):
#if(postfix.isOperator(i)):
count=count+1
temp = [] # temporary variable -> contains
VarCount=0 # to count the variables, whether it is ready to be operated on (i.e, 2 vars )
opstack=[] # stack for operator
varstack=[] # stack for operand
t=""
exp = str(exp)
post = re.findall('\w+|\+|-|\*|/|=', exp)
#print post
l=[]
for x in post:
if(InfixTopostfix.isOperand(x)):
l.append(x)
f = open("symbol_original.txt", "a")
for i in l:
if not i.isdigit():
f.write(i)
f.write('\n')
f.close()
store_i = k
temp_list=[]
temps = ''
for i in post:
if InfixTopostfix.isOperator(i):
#if postfix.isOperator(i):
x = varstack.pop()
y = varstack.pop()
t=y+i+x
temp.append(t)
if ( i!='=' ):
temps = "t"+str(k)
#print i+"harekal"+temps
temp_list.append(temps)
varstack.append(temps)
k=k+1
else:
varstack.append(i)
f = open("symbol_temp.txt", "a")
for i in temp_list:
f.write(i)
f.write('\n')
f.close()
i = store_i
t = []
for l in temp:
if i<store_i+count-1:
#print l
t.append("t"+str(i)+"="+str(l))
else:
t.append(str(l))
i=i+1
f = open("inout.txt", "a")
for i in t:
print i
f.write(i)
f.write('\n')
f.close()
return k
import InfixTopostfix
import re
exp = InfixTopostfix.menu()
count=0
for i in exp:
#print(i)
if(InfixTopostfix.isOperator(i)):
count=count+1
#print "No of temp reqd "+str(count-1)
temp = [] # temporary variable -> contains
VarCount=0 # to count the variables, whether it is ready to be operated on (i.e, 2 vars )
opstack=[] # stack for operator
varstack=[] # stack for operand
k=0
t=""
quad = re.findall('\w+|\+|-|\*|/|=', exp)
quad.reverse()
#print quad
i = 0
m=0
for j in quad:
#if(VarCount==2):
# t=str(varstack.pop())+str(opstack.pop())+str(varstack.pop())
# temp.append(t)
# varstack.append(temp[k])
# k=k+1
# VarCount=1
def eval(expression, k, tostr):
exp = InfixTopostfix.menu(expression)
#exp = postfix.menu(expression)
#print exp
count = 0
for i in exp:
#print(i)
if (InfixTopostfix.isOperator(i)):
#if(postfix.isOperator(i)):
count = count + 1
temp = [] # temporary variable -> contains
VarCount = 0 # to count the variables, whether it is ready to be operated on (i.e, 2 vars )
opstack = [] # stack for operator
varstack = [] # stack for operand
t = ""
exp = str(exp)
post = re.findall('\w+|\+|-|\*|/|=', exp)
#print post
l = []
for x in post:
if (InfixTopostfix.isOperand(x)):
l.append(x)
f = open("symbol_original.txt", "a")
for i in l:
if not i.isdigit():
f.write(i)
f.write('\n')
f.close()
store_i = k
temp_list = []
temps = ''
#print post
t = []
for i in post:
if InfixTopostfix.isOperator(i):
if i != '=':
#if postfix.isOperator(i):
x = varstack.pop()
y = varstack.pop()
t1 = y + i + x
temp.append(t1)
temps = "t" + str(k)
#print i+"harekal"+temps
temp_list.append(temps)
varstack.append(temps)
k = k + 1
elif count == 1:
x = varstack.pop()
y = varstack.pop()
print var, '*' * 80
tostr.append(var)
t.append(str(x) + "=" + str(y))
else:
varstack.append(i)
f = open("symbol_temp.txt", "a")
inv = 0
for i in temp_list:
if inv < len(temp_list) - 1:
f.write(i)
f.write('\n')
inv = inv + 1
f.close()
i = store_i
#print temp, i, 'hellohello'
for l in temp:
if i < store_i + count - 2:
t.append("t" + str(i) + "=" + str(l))
else:
#print varstack
var = varstack.pop()
var = varstack.pop()
#print var
print var, '*' * 80
tostr.append(var)
t.append(str(var) + "=" + str(l))
i = i + 1
f = open("inout.txt", "a")
for i in t:
print i
f.write(i)
f.write('\n')
f.close()
if k == 0:
return 0
return k - 1
