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Question

I am splitting string in my code like this:

var lines = myString == null 
            ? new string[] { } 
            : myString.Split(new[] { "\n", "<br />" }, StringSplitOptions.RemoveEmptyEntries);

The trouble is this, sometimes the text looks like this:

sdjkgjkdgjk<br />asdfsdg

And in this case my code works. however, other times, the text looks like this:

sdjkgjkdgjk<br style="someAttribute: someProperty;"/>asdfsdg

And in this case, I don't get the result I want. how to split this string by the whole br tag, along with its all attributes?

Answer 1

Use Regex.Split() . Below is an example:-

using System;
using System.Text.RegularExpressions;

public class Example
{
    public static void Main()
    {
        string input = "sdjkgjkdgjk<br />asdfsdg";
        string pattern = "<br.*\\/>";            // Split on <br/>

        DisplayByRegex(input, pattern);
        input = "sdjkgjkdgjk<br style=\"someAttribute: someProperty;\"/>asdfsdg";
        DisplayByRegex(input, pattern);
        Console.Read();
    }

    private static void DisplayByRegex(string input, string pattern)
    {
        string[] substrings = Regex.Split(input, pattern);
        foreach (string match in substrings)
        {
            Console.WriteLine("'{0}'", match);
        }
    }
}

Answer 2

If you only need to split by br tags and newline, regex is a good option:

var lines = myString == null ?
    new string[] { } :
    Regex.Split(myString, "(<br.+>)|(\r\n?|\n)");

But if your requirements get more complex, I'd suggest using an HTML parser.

Answer 3

你可以尝试这个：

var parts = Regex.Split(value, @"(<b>[\s\S]+?<\/b>)").Where(l => l != string.Empty).ToArray();

Answer 4

我希望以下代码可以帮助您。

    var items = Regex.Split("sdjkgjkdgjk<br style='someAttribute: someProperty;'/>asdfsdg", @"<.*?>");

Answer 5

You shoul use a regular expression. Here you can find a good tutorial for your purpose.