using System;
namespace Joycode.MSN.CommandParsers
{
///
/// 用户编码解释器
///
internal class Encoders
{
private static System.Text.Encoding enc=System.Text.Encoding.UTF8;
public Encoders()
{
}
public static int Length(string source)
{
return enc.GetByteCount(source);
}
public static int IndexOf(string source,string find, int start)
{
int result=-1;
if(start { int index=source.IndexOf(find,start); if(index>=0) { result=enc.GetByteCount(source.Substring(0,index)); } } return result; } public static int IndexOf(string source, string find) { // System.Text.Encoding enc=System.Text.Encoding.UTF8; // int result=enc.GetByteCount(source.Substring(0,source.IndexOf(find))); return Encoders.IndexOf(source,find,0); } public static string Substring(string source,int start,int count) { //int c=enc.GetByteCount(source); string result=""; try { result=enc.GetString(enc.GetBytes(source),start,count); } catch { } return result; } } }