private static string TranslateCondition(string[] words, int index, string prev)
{
string s1 = words[index++];
string str1 = "";
while ((int) s1[0] == 33)
{
s1 = words[index - 1] = s1.Substring(1);
str1 += "@5";
}
if (s1 == "-")
s1 = words[index - 1] = s1 + words[index];
string str2 = (int) s1[0] != 40 || (int) s1[s1.Length - 1] != 41 ? str1 + ConditionTranslator.GetFunc(s1) : str1 + ConditionTranslator.TranslateCondition(ConditionTranslator.GetWords(s1.Substring(1, s1.Length - 2)), 0, (string) null);
if (str2 == null)
return (string) null;
if (index >= words.Length - 1)
return prev == null ? str2 : prev + str2;
string s2 = ConditionTranslator.GetSign(words[index++]);
if (s2 == null)
{
ConditionTranslator.LastMessage = "Expected an operator.";
return (string) null;
}
int num1 = ConditionTranslator.CondType(s2);
if (num1 == 5)
s2 = "@5" + ConditionTranslator.GetSign("==");
if (prev == null)
return ConditionTranslator.TranslateCondition(words, index, s2 + str2);
int num2 = ConditionTranslator.CondType(prev);
switch (num1)
{
case 5:
case 13:
case 14:
case 15:
if (num2 == 6 || num2 == 7)
return ConditionTranslator.TranslateCondition(words, index, prev + s2 + str2);
if (num2 > 7 && num2 < 13)
return ConditionTranslator.TranslateCondition(words, index, s2 + prev + str2);
return (string) null;
case 6:
case 7:
if (num2 > 4 && num2 < 8 || num2 > 12 && num2 < 16)
return ConditionTranslator.TranslateCondition(words, index, s2 + prev + str2);
return (string) null;
case 9:
case 10:
if (num2 == 5 || num2 == 9 || num2 == 10 || num2 > 12 && num2 < 16)
return ConditionTranslator.TranslateCondition(words, index, prev + s2 + str2);
if (num2 == 11 || num2 == 12)
return ConditionTranslator.TranslateCondition(words, index, s2 + prev + str2);
return (string) null;
case 11:
case 12:
if (num2 == 5 || num2 > 8 && num2 < 16)
return ConditionTranslator.TranslateCondition(words, index, prev + s2 + str2);
return (string) null;
default:
return (string) null;
}
}
public static string TranslateCondition(string text)
{
if (Enumerable.Contains(text, '@'))
{
ConditionTranslator.LastMessage = "Input contains invalid characters.";
return null;
}
text = ConditionTranslator.FixMissingSpaces(text).Trim();
if (Enumerable.Count(text, x => (int)x == 40) != Enumerable.Count(text, x => (int)x == 41))
{
ConditionTranslator.LastMessage = "Uneven amount of open and closed brackets.";
return null;
}
if (text.Length == 0)
return "@[email protected]";
text = ConditionTranslator.ReplaceFunctions(text);
if (text == null)
return null;
return ConditionTranslator.TranslateCondition(ConditionTranslator.GetWords(text), 0, (string) null);
}
