Wrap text to the next line when it exceeds a certain length?

Question

I need to write different paragraphs of text within a certain area. For instance, I have drawn a box to the console that looks like this:

/----------------------\
|                      |
|                      |
|                      |
|                      |
\----------------------/

How would I write text within it, but wrap it to the next line if it gets too long?

Answer 1

Split on last space before your row length?

int myLimit = 10;
string sentence = "this is a long sentence that needs splitting to fit";
string[] words = sentence.Split(new char[] { ' ' });
IList<string> sentenceParts = new List<string>();
sentenceParts.Add(string.Empty);

int partCounter = 0;

foreach (string word in words)
{
    if ((sentenceParts[partCounter] + word).Length > myLimit)
    {
        partCounter++;
        sentenceParts.Add(string.Empty);
    }

    sentenceParts[partCounter] += word + " ";
}

foreach (string x in sentenceParts)
    Console.WriteLine(x);

UPDATE (the solution above lost the last word in some cases):

int myLimit = 10;
string sentence = "this is a long sentence that needs splitting to fit";
string[] words = sentence.Split(' ');

StringBuilder newSentence = new StringBuilder();


string line = "";
foreach (string word in words)
{
    if ((line + word).Length > myLimit)
    {
        newSentence.AppendLine(line);
        line = "";
    }

    line += string.Format("{0} ", word);
}

if (line.Length > 0)
    newSentence.AppendLine(line);

Console.WriteLine(newSentence.ToString());

Answer 2

I started with Jim H.'s solution and end up with this method. Only problem is if text has any word that longer than limit. But works well.

public static List<string> GetWordGroups(string text, int limit)
{
    var words = text.Split(new string[] { " ", "\r\n", "\n" }, StringSplitOptions.None);

    List<string> wordList = new List<string>();

    string line = "";
    foreach (string word in words)
    {
        if (!string.IsNullOrWhiteSpace(word))
        {
            var newLine = string.Join(" ", line, word).Trim();
            if (newLine.Length >= limit)
            {
                wordList.Add(line);
                line = word;
            }
            else
            {
                line = newLine;
            }
        }
    }

    if (line.Length > 0)
        wordList.Add(line);

    return wordList;
}