Retrieving two strings that are separated by the string 'or'?

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I need to recognize two strings alongside the word 'or' from these examples:

Richard or James?
Car or Van?
Tree or Plant?

I need to recognize the two words alongside the 'or' word in each sentence, such that I have:

Car
Van

Richard
James

As a list or array, should I use Regex?

Posted 14-Mar-15 20:25pm

Dinuka Jayasuriya

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Kornfeld Eliyahu Peter · Accepted Answer · 2015-03-14T20:33:00

Solution 2

String.Split[^] can do it for you easily...

C#

string szSource = "Car or Van";
string[] szSep = new string[] {" or "};
string[] szRes;

szRes = szSource.Split(szSep, StringSplitOptions.None);

Posted 14-Mar-15 20:33pm

Kornfeld Eliyahu Peter

Garth J Lancaster · Accepted Answer · 2015-03-14T20:32:00

A regex may appear simple, but often its overkill

If you are always going to have <name1>space<'or'>space<name2>, then regex is overkill - you could use string.split and the ' ' (space) as the character to split on and pick out elements 0, 2 from the resultant array from the Split

If on the other hand, the names can have spaces in them (for example), or the requirements start getting more involved, then indeed, a regex may be the answer

I'd suggest
a) do it simply (String.Split)
b) test the simple way against all of your data
c) if that works, stay simple
d) if not, or requirements may change later, look at regex

Peter Leow · Accepted Answer · 2015-03-14T20:40:00

Try Split with Regex:

C#

using System;
using System.Text.RegularExpressions;

public class Program
{
    public static void Main()
    {
        string str = "Richard or James?";
        string[] w = Regex.Split(str, @"\s+or\s+|\?");
        foreach (string s in w)
        {
            Console.WriteLine(s);
        }
    }
}

Read more: http://www.dotnetperls.com/regex-split[^]

Retrieving two strings that are separated by the string 'or'?

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