Mega Code Archive
Truncates the specified string
<![CDATA[
#region License
// Copyright (c) 2007 James Newton-King
//
// Permission is hereby granted, free of charge, to any person
// obtaining a copy of this software and associated documentation
// files (the "Software"), to deal in the Software without
// restriction, including without limitation the rights to use,
// copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the
// Software is furnished to do so, subject to the following
// conditions:
//
// The above copyright notice and this permission notice shall be
// included in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
// OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
// HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
// WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
// OTHER DEALINGS IN THE SOFTWARE.
#endregion
using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Text;
using System.Text.RegularExpressions;
namespace Newtonsoft.Utilities.Text
{
public static class StringExtensions
{
/// <summary>
/// Truncates the specified string.
/// </summary>
/// <param name="s">The string to truncate.</param>
/// <param name="maximumLength">The maximum length of the string before it is truncated.</param>
/// <returns></returns>
public static string Truncate(this string s, int maximumLength)
{
return Truncate(s, maximumLength, "...");
}
/// <summary>
/// Truncates the specified string.
/// </summary>
/// <param name="s">The string to truncate.</param>
/// <param name="maximumLength">The maximum length of the string before it is truncated.</param>
/// <param name="suffix">The suffix to place at the end of the truncated string.</param>
/// <returns></returns>
public static string Truncate(this string s, int maximumLength, string suffix)
{
if (suffix == null)
throw new ArgumentNullException("suffix");
if (maximumLength <= 0)
throw new ArgumentException("Maximum length must be greater than zero.", "maximumLength");
int subStringLength = maximumLength - suffix.Length;
if (subStringLength <= 0)
throw new ArgumentException("Length of suffix string is greater or equal to maximumLength");
if (s != null && s.Length > maximumLength)
{
string truncatedString = s.Substring(0, subStringLength);
// incase the last character is a space
truncatedString = truncatedString.TrimEnd();
truncatedString += suffix;
return truncatedString;
}
else
{
return s;
}
}
}
}
]]>