using System; using System.Web; using System.IO; class MyNewClass { public static void Main() { String myString; Console.WriteLine("Enter a string having '&' or '"' in it: "); myString=Console.ReadLine(); String myEncodedString; // Encode the string. myEncodedString = HttpUtility.HtmlEncode(myString); Console.WriteLine("HTML Encoded string is "+myEncodedString); StringWriter myWriter = new StringWriter(); // Decode the encoded string. HttpUtility.HtmlDecode(myEncodedString, myWriter); Console.Write("Decoded string of the above encoded string is "+myWriter.ToString()); } }
Returns a string with non alphanumeric chars converted to the substitute character.
//
// (C) Copyright 2009 Irantha Suwandarathna (irantha@gmail.com)
// All rights reserved.
//
/* Copyright (c) 2001-2008, The HSQL Development Group
* All rights reserved.
*
* Redistribution and use _in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* Redistributions _in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer _in the documentation
* and/or other materials provided with the distribution.
*
* Neither the name of the HSQL Development Group nor the names of its
* contributors may be used to endorse or promote products derived from this
* software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS “AS IS”
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL HSQL DEVELOPMENT GROUP, HSQLDB.ORG,
* OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
using System;
using System.Text;
using System.Collections.Generic;
namespace EffiProz.Core.Lib
{
/** Provides a collection of convenience methods for processing and
* creating objects with String
value components.
*
* @author fredt@users
* @author boucherb@users
* @version 1.7.2
* @since 1.7.0
*/
public class StringUtil
{
/**
* Returns a string with non alphanumeric chars converted to the
* substitute character. A digit first character is also converted.
* By sqlbob@users
* @param source string to convert
* @param substitute character to use
* @return converted string
*/
public static string toLowerSubset(string source, char substitute)
{
int len = source.Length;
StringBuilder src = new StringBuilder(len);
char ch;
for (int i = 0; i < len; i++) { ch = source[(i)]; if (!Char.IsLetterOrDigit(ch)) { src.Append(substitute); } else if ((i == 0) && Char.IsDigit(ch)) { src.Append(substitute); } else { src.Append(Char.ToLower(ch)); } } return src.ToString(); } } } [/csharp]
Select Single Inner Text
//http://isotopescreencapture.codeplex.com/ //The MIT License (MIT) namespace Isotope.Xml.Extensions { public static class XmlNodeExtensions { public static string SelectSingleInnerText(this System.Xml.XmlNode node, string xpath ) { return node.SelectSingleInnerText(xpath, null); } public static string SelectSingleInnerText(this System.Xml.XmlNode node, string xpath, System.Xml.XmlNamespaceManager nsmgr) { System.Xml.XmlNode tnode = node.SelectSingleNode(xpath,nsmgr); if (tnode == null) { return null; } return tnode.InnerText; } } }
Ensures the carriage returns. See http://cr.yp.to/docs/smtplf.html and 822bis section 2.3.
#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
{
///
///
/// The value.
///
public static string EnsureCarriageReturns(this string value)
{
return Regex.Replace(value, “(?
Truncates the specified string.
#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; } } } }
Remove Html
#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 { public static string RemoveHtml(this string s) { return RemoveHtmlInternal(s, null); } public static string RemoveHtml(this string s, IList<string> removeTags) { if (removeTags == null) throw new ArgumentNullException("removeTags"); return RemoveHtmlInternal(s, removeTags); } private static string RemoveHtmlInternal(string s, IList<string> removeTags) { List<string> removeTagsUpper = null; if (removeTags != null) { removeTagsUpper = new List<string>(removeTags.Count); foreach (string tag in removeTags) { removeTagsUpper.Add(tag.ToUpperInvariant()); } } Regex anyTag = new Regex(@"<[/]{0,1}s*(?<tag>w*)s*(?<attr>.*?=['""].*?[""'])*?s*[/]{0,1}>", RegexOptions.Compiled); return anyTag.Replace(s, delegate(Match match) { string tag = match.Groups["tag"].Value.ToUpperInvariant(); if (removeTagsUpper == null) return string.Empty; else if (removeTagsUpper.Contains(tag)) return string.Empty; else return match.Value; }); } } }
Replaces the new lines in a string with the given replacement characters.
#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> /// Replaces the new lines in a string with the given replacement characters. /// </summary> /// <param name="s">The string to replace new lines in.</param> /// <param name="replacement">The replacement characters.</param> /// <returns></returns> public static string ReplaceNewLines(this string s, string replacement) { StringReader sr = new StringReader(s); StringBuilder sb = new StringBuilder(); bool first = true; string line; while ((line = sr.ReadLine()) != null) { if (first) first = false; else sb.Append(replacement); sb.Append(line); } return sb.ToString(); } } }