Data Structure

Question

Hello all! First there is an integer array for example 1234 Second there are logical rules of following types: 1&2 = rule_1 1|3 = rule_2 1^4 = rule_3 (& - AND | - OR ^ = NOT) The task is to search for the rules. So the question is how can I implement this kind of search are there any source codes or libraries? I'll be very glad if someone helps me to cope with this problem and offers some ideas or examples especially on C#. Beforehand great thanks!

Hendrew uy · Answer

I shall input array of int. And there must be initialized rule engine containing such rules as 1&2 1|3 1^2&4 so if I input 1234 I have to get worked rules (1&2 1|3 the last one won't work)

Roei Bar · Answer

well my friend this is a custom rule engine meaning that there is no library for this you can use some open source rule engines like http://csharp-source.net/open-source/rule-engines you can either use their Rules type or extend them or if its a simple rule build it yourself which is something like this: string[] _intArray = new string[10]; for (int i = 0; i { _intArray[i] = i.ToString(); } Dictionary _houseRules = new Dictionary (); _houseRules.Add(1&2 false); _houseRules.Add(1|3 false); _houseRules.Add(1^4 false); bool ruleFirst = false; bool ruleSecond = false; foreach (string rule in _houseRules.Keys) { switch (rule.Substring(11)) { case &: for (int i = 0; i { if (_intArray[i] == rule.Substring(01)) { ruleFirst = true; break; } } if (ruleFirst) { for (int i = 0; i { if (_intArray[i] == rule.Substring(2 1)) { ruleSecond = true; break; } } } if (ruleFirst && ruleSecond) { _houseRules[rule] = true; } break; case |: for (int i = 0; i { if (_intArray[i] == rule.Substring(0 1)) { ruleFirst = true; break; } } for (int i = 0; i { if (_intArray[i] == rule.Substring(2 1)) { ruleSecond = true; break; } } if (ruleFirst || ruleSecond) { _houseRules[rule] = true; } break; case ^: for (int i = 0; i { if (_intArray[i] == rule.Substring(0 1)) { ruleFirst = true; break; } } for (int i = 0; i { if (_intArray[i] == rule.Substring(2 1)) { ruleSecond = true; break; } } if (ruleFirst != ruleSecond) { _houseRules[rule] = true; } break; default: break; } }

Kirtan Patel · Answer

Friend What you will Input and What you want as Result tell me a bit more may be I can help you :)