/*public void SetSentence (string str)
* {
* context.ClearResult ();
* byte[] sen = System.Text.Encoding.UTF8.GetBytes (str);
* context.mSentence = sen;
* }*/
public void ParseSentence()
{
int len = context.mSentence.GetLength(0);
while (context.mParseIndex < len)
{
ParseBase parse = null;
int byte_val = (int)(context.mSentence [context.mParseIndex]);
if (byte_val >= 0 && byte_val <= 0x7f)
{
parse = new OneByteParse();
}
else if (byte_val >= 0xc0 && byte_val < 0xe0)
{
parse = new TwoByteParse();
}
else if (byte_val >= 0xe0 && byte_val < 0xf0)
{
parse = new ThreeByteParse();
}
else if (byte_val >= 0xf0)
{
parse = new FourByteParse();
}
else
{
break;
}
if (parse != null)
{
parse.Interprete(context);
}
}
}
public int GetSubWordsLen(int maxLen)
{
context.mParseIndex = 0;
int len = context.mSentence.GetLength(0);
while (context.mParseIndex < len)
{
ParseBase parse = null;
int byte_val = (int)(context.mSentence [context.mParseIndex]);
if (byte_val >= 0 && byte_val <= 0x7f)
{
parse = new OneByteParse();
}
else if (byte_val >= 0xc0 && byte_val < 0xe0)
{
parse = new TwoByteParse();
}
else if (byte_val >= 0xe0 && byte_val < 0xf0)
{
parse = new ThreeByteParse();
}
else if (byte_val >= 0xf0)
{
parse = new FourByteParse();
}
else
{
break;
}
if (context.mParseIndex + parse.GetByteNum() > maxLen)
{
return(context.mParseIndex);
}
if (parse != null)
{
parse.Interprete(context);
}
}
return(context.mParseIndex);
}
/// <summary>
/// 根据规则返回字符串的长度(汉字+1,英文和数字+0.5)
/// </summary>
/// <returns></returns>
public float GetWordLenByRule()
{
float word_len = 0;
int len = context.mSentence.GetLength(0);
while (context.mParseIndex < len)
{
ParseBase parse = null;
int byte_val = (int)(context.mSentence[context.mParseIndex]);
if (byte_val >= 0 && byte_val <= 0x7f)
{
parse = new OneByteParse();
word_len += 0.7f;
}
else if (byte_val >= 0xc0 && byte_val < 0xe0)
{
parse = new TwoByteParse();
word_len++;
}
else if (byte_val >= 0xe0 && byte_val < 0xf0)
{
parse = new ThreeByteParse();
word_len++;
}
else if (byte_val >= 0xf0)
{
parse = new FourByteParse();
word_len++;
}
else
{
break;
}
if (parse != null)
{
parse.Interprete(context);
}
}
return(word_len);
}
