C# Regular Expressions, text between slash

I have 3 type of strings in C#, i want to retrieve text between slash(es) using Regular Expressions

string type1 = "www.domain.com/category-name/1.html";

string type2 = "www.domain.com/category-name/sub-category-name/2.html";

string type3 = "www.domain.com/category-name/sub-category-name/sub-sub-category-name/3.html";

Q1) From type1 variable i want to retrieve text between first and second slash '/'. i should get category-name.

Q2) From type2 variable i want to retrieve text between first and second slash '/', and text between second and third slash '/'. i should get category-name and sub-category-name

Q3) From type3 variable i want to retrieve text between first and second slash '/', and text between second and third slash '/', and text between third开发者_StackOverflow社区 and fourth slash '/'. i should get category-name and sub-category-name and sub-sub-category-name

Any help will be appreciated

Thanks

---

You don't need a regular expression for this to work, have a look at the String.Split method and the StringSplitOptions enum.

string type1 = "www.domain.com/category-name/1.html";
string[] splicedUrl = type1.Split('/', StringSplitOptions.None);

if (splicedUrl.length > 0)
{
    // Access the correct index, check how many entries the array has etc.
}

You might want to have a look at the following post.

---

Assuming theString is the variable you want to parse:

var tokens = theString.split('/');
if(tokens.length >= 2)
{
    string category = tokens[1];

    List<string> subCategories = new List<string>();
    for(int k = 2; k < tokens.length - 1; k++)
    {
        subCategories.Add(tokens[k]);
    }
}

---

You can also do something like below using System.Uri:

Uri type1 = new Uri("http://www.domain.com/category-name/1.html");
var categoryNameType1 = type1.Segments[1];
Uri type2 = new Uri("http://www.domain.com/category-name/sub-category-name/2.html");
var categoryNameType2 = type2.Segments[1];
var subcategoryNameType2 = type2.Segments[2];

This might be slightly more complex than a simple string.Split() but if you need to get more out of a URI like a query, you can easily get it.

---

If you really feel the need to (mis)use a regular expression in this case

/([\w-]+)(?=/)

should do the trick. This assumes that the items between the slashes are letters and hyphens.

---

Here's another way of doing this. It is equivalent of other answers you already have, but just wanted to post it because it is slightly different:

string url = "www.domain.com/category-name/1.html"
var splitted = url.Split('/');
var values = splitted.Skip(1).Take(splitted.Length - 2).ToArray();