using System;
using System.Text.RegularExpressions;
public class Example
{
public static void Main()
{
string pattern = @"\[[^][]*](*SKIP)(*F)|(?:https?://)?(?:www\.)?[\w@:%.+~#=]{2,256}\.[a-z]{2,6}\b[\w-@:%+.~#?&/=]*";
string input = @"www.example.com
http://example.com.nz
example.com
http://www.example.com?2rjl6
example.com/first/second
https://example.us.edi?34535/534534?dfg=g&fg
etc...
I want no match if any of the above URLs are enclosed in square brackets [ ] like this:
[www.example.com]
[http://example.com.nz]
etc...
.aaaa
e.g.
Lorem ipsum dolor sit amet, consectetur [http://example.com.nz] llamcorper et lacus. Morbi sodales convallis lectus a efficitur: example.com/first/second vitae nisl placerat.
Fusce non ipsum a augue http://example.com.nz http://www.example.com?2rjl6 aculis augue. Nullam eu nulla lectus.";
RegexOptions options = RegexOptions.Multiline;
foreach (Match m in Regex.Matches(input, pattern, options))
{
Console.WriteLine("'{0}' found at index {1}.", m.Value, m.Index);
}
}
}
Please keep in mind that these code samples are automatically generated and are not guaranteed to work. If you find any syntax errors, feel free to submit a bug report. For a full regex reference for C#, please visit: https://msdn.microsoft.com/en-us/library/system.text.regularexpressions.regex(v=vs.110).aspx