/**
* 以流形式读取ExpressionToken
* @return ExpressionToken
* @throws IOException
* @throws FormatException
* @throws AntipathicException
*/
public Element ReadToken()
{
prefixBlank = false;
while (true)
{
//去除空格
Mark(0);//标记
int b = Read();
if (b == -1)
{
return(null);
}
char c = (char)b;
if (IGNORE_CHAR.IndexOf(c) >= 0) //去除开始的空格
{
prefixBlank = true;
continue;
}
Reset();//重置
//构造一个词元读取器
IElementReader er = ElementReaderFactory.CreateElementReader(this);
return(er.Read(this));
}
}
public ElementReaderTests()
{
_elemetReader = new ElementReader();
}
