using System;
using System.Text.RegularExpressions;
public class Example
{
public static void Main()
{
string pattern = @"(?<=^).{1,50}(?:\n|$)|.{1,50}(?:\n|$)|.{1,50}";
string input = @"I wish to split
a long text into chunks
of nn chars max.
To take as much chars as I can in each
chunk but importantly I want to finish each
chunk in a
linebreak
inorder to
avoid word split in the middle.
If there was no single linebreak in all of the nn chars, ... split a word to 2 chunks.
";
RegexOptions options = RegexOptions.Multiline | RegexOptions.Singleline;
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