Question

I need to do some pattern matching to process a list of questions and come up with
some statements that will head the list of solutions. Every question that I need to match
has a first sentence that ends in a “?”. For example if have the following string:

input="Which of the following can be aa ... zz?"

then I need to see if this matches some predefined patterns and if it does then I need to populate two variables. In this example the string above needs to result in the following:

string1= "Can be aa ... zz:"
string2= "Cannot be contained aa ... zz:"

Where the text aa … zzz in the source appears in the destination.

Inputs:

1 - Which of the following can be aa ... zz?
2 - Which of the following are correct?
3 - What will result when aa ... zz?
4 - Which of the following is a aa ... zz?
5 - Which are aa ... zz?
6 - What can be said about aa ... zz:
7 - Which of the following is true?
8 - What will be the result when aa ... zz?

Output 1:

1 - Can be aa ... zz:
2 - Correct:
3 - The following will result::
4 - A aa ... zz
5 - The following are aa ... zz
6 - True statement(s)
7 - True statement(s)
8 - The following will result:

Output 2:

1 - Cannot be aa ... zz:
2 - Incorrect:
3 - The following will not result
4 - Not a aa ... zz:
5 - Are not aa ... zz:
6 - False statement(s)
7 - False statement(s)
8 - The following will not result

I am thinking that I should store the input pattern and output patterns in a reference data class and then maybe some combination of link and pattern matching.

Does anyone have any suggestions. Even if I could see how to do one match that would be good.
If I have an example for one then I can code in more and work from that.

What kind of patterns? – The patterns are the text. So for example I am looking to see if my input string starts with “Which of the following can be” and ends with a “?”.

Where are these questions coming from? – A limited set of questions. If I cannot get a match then I will put in something like “True” or “False” in the outputs.

Answer 1

It can be modeled something like below:

static Tuple<string,string> Match(string question)
{
   //Do the matching and return the string,string tuple where first 
   //string is for output 1 and second for output 2.
}

static Tuple<List<string>,List<string>> GetOutput(List<string> questions)
{
    var r = questions.Select(q => Match(q));
    return new Tuple<List<string>,List<string>(r.Select(t => t.Item1).ToList(), r.Select(t =>  t.Item2).ToList());
}