64 lines
2.4 KiB
C#
64 lines
2.4 KiB
C#
using System;
|
|
using System.Collections.Generic;
|
|
using System.Linq;
|
|
using System.Text;
|
|
|
|
namespace umbraco.cms.helpers
|
|
{
|
|
public class Casing
|
|
{
|
|
public const string VALID_ALIAS_CHARACTERS = "_-abcdefghijklmnopqrstuvwxyz1234567890";
|
|
public const string INVALID_FIRST_CHARACTERS = "01234567890";
|
|
|
|
/// <summary>
|
|
/// A helper method to ensure that an Alias string doesn't contains any illegal characters
|
|
/// which is defined in a private constant 'ValidCharacters' in this class.
|
|
/// Conventions over configuration, baby. You can't touch this - MC Hammer!
|
|
/// </summary>
|
|
/// <param name="alias">The alias.</param>
|
|
/// <returns>An alias guaranteed not to contain illegal characters</returns>
|
|
public static string SafeAlias(string alias)
|
|
{
|
|
StringBuilder safeString = new StringBuilder();
|
|
int aliasLength = alias.Length;
|
|
for (int i = 0; i < aliasLength;i++ )
|
|
{
|
|
string currentChar = alias.Substring(i, 1);
|
|
if (VALID_ALIAS_CHARACTERS.Contains(currentChar.ToLower()))
|
|
{
|
|
// check for camel (if previous character is a space, we'll upper case the current one
|
|
if (safeString.Length == 0 && INVALID_FIRST_CHARACTERS.Contains(currentChar.ToLower()))
|
|
{
|
|
currentChar = "";
|
|
}
|
|
else
|
|
{
|
|
// first char should always be lowercase (camel style)
|
|
// Skipping this check as it can cause incompatibility issues with 3rd party packages
|
|
// if (safeString.Length == 0)
|
|
// currentChar = currentChar.ToLower();
|
|
if (i < aliasLength - 1 && i > 0 && alias.Substring(i - 1, 1) == " ")
|
|
currentChar = currentChar.ToUpper();
|
|
|
|
safeString.Append(currentChar);
|
|
}
|
|
}
|
|
}
|
|
|
|
return safeString.ToString();
|
|
}
|
|
|
|
public static string SafeAliasWithForcingCheck(string alias)
|
|
{
|
|
if (UmbracoSettings.ForceSafeAliases)
|
|
{
|
|
return SafeAlias(alias);
|
|
}
|
|
else
|
|
{
|
|
return alias;
|
|
}
|
|
}
|
|
}
|
|
}
|