hrithik254 / digitallogicsonsage Goto Github PK

""this function converts boolean expresssion written 
    using *, +, ' representing AND, OR, NOT 
    operations to sage interpretable expression""


literal_list0 = ["&" if i == "*" else i for i in string]
literal_list1 = ["|" if i == "+" else i for i in literal_list0]
for i in range(len(literal_list1)):
    if literal_list1[i] == "'":
        del literal_list1[i]
        if literal_list1[i-1] == ")":
            j = i-1
            while literal_list1[j] != "(":
                j += -1
            literal_list1.insert(j,'~')
            i += 1
        else:
            literal_list1.insert(i-1,"~")
return_string = ''
for literal in literal_list1:
    return_string += literal
return return_string`