/*
* Copyright 2004 The Apache Software Foundation
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
using System;
namespace Lucene.Net.Util{
/// <summary> Methods for manipulating strings.
///
/// $Id: StringHelper.java 150248 2004-03-25 13:39:59Z otis $
/// </summary>
public abstract class StringHelper
{
/// <summary> Compares two strings, character by character, and returns the
/// first position where the two strings differ from one another.
///
/// </summary>
/// <param name="s1">The first string to compare
/// </param>
/// <param name="s2">The second string to compare
/// </param>
/// <returns> The first position where the two strings differ.
/// </returns>
public static int StringDifference(System.String s1, System.String s2)
{
int len1 = s1.Length;
int len2 = s2.Length;
int len = len1 < len2?len1:len2;
for (int i = 0; i < len; i++)
{
if (s1[i] != s2[i])
{
return i;
}
}
return len;
}
private StringHelper()
{
}
}
}
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