internal static FunSign CreateFunSign(string funName, CalCurrent pool)
{
if (string.Equals("t", funName, StringComparison.OrdinalIgnoreCase) ||
string.Equals("true", funName, StringComparison.OrdinalIgnoreCase))
{
return(new T());
}
if (string.Equals("f", funName, StringComparison.OrdinalIgnoreCase) ||
string.Equals("false", funName, StringComparison.OrdinalIgnoreCase))
{
return(new F());
}
Type fs;
if (RegisterFunSign.TryGetValue(funName.ToLower(), out fs))
{
return((FunSign)Activator.CreateInstance(fs, pool));
}
return(null);
}
private ExpressCode()
{
CalCurrent = new CalCurrent();
}
public ExpressCode(string code)
{
CalCurrent = new CalCurrent();
this.code = code;
}
private static CalSign CreateCalSign(string signExp, CalCurrent pool)
{
if (string.Equals(signExp, "and", StringComparison.OrdinalIgnoreCase))
{
return(new AndSign());
}
else if (string.Equals(signExp, "not", StringComparison.OrdinalIgnoreCase))
{
return(new NotSign());
}
else if (string.Equals(signExp, "or", StringComparison.OrdinalIgnoreCase))
{
return(new OrSign());
}
else if (string.Equals(signExp, ":", StringComparison.OrdinalIgnoreCase))
{
return(new SetValueSign(pool));
}
else if (string.Equals(signExp, ":=", StringComparison.OrdinalIgnoreCase))
{
return(new OutputValueSign());
}
else if (string.Equals(signExp, "=", StringComparison.OrdinalIgnoreCase))
{
return(new EqSign());
}
else if (string.Equals(signExp, ">", StringComparison.OrdinalIgnoreCase))
{
return(new Bigersign());
}
else if (string.Equals(signExp, ">=", StringComparison.OrdinalIgnoreCase))
{
return(new BigerEqSign());
}
else if (string.Equals(signExp, "<", StringComparison.OrdinalIgnoreCase))
{
return(new SmallerSign());
}
else if (string.Equals(signExp, "<=", StringComparison.OrdinalIgnoreCase))
{
return(new SmallerEqSign());
}
else if (string.Equals(signExp, "+", StringComparison.OrdinalIgnoreCase))
{
return(new PlusSign());
}
else if (string.Equals(signExp, "-", StringComparison.OrdinalIgnoreCase))
{
return(new MinusSign());
}
else if (string.Equals(signExp, "*", StringComparison.OrdinalIgnoreCase))
{
return(new MultiplieSign());
}
else if (string.Equals(signExp, "/", StringComparison.OrdinalIgnoreCase))
{
return(new DividedSign());
}
else if (string.Equals(signExp, "mod", StringComparison.OrdinalIgnoreCase))
{
return(new ModSign());
}
else if (string.Equals(signExp, ",", StringComparison.OrdinalIgnoreCase))
{
return(new BeanSign());
}
else
{
Match mc = Comm.MatchFunctionExpress(signExp);
//Match mc = new Regex(@"^([A-z]{1}[A-z0-9]*)\((.*)\)$").Match(signExp);
if (mc.Success)
{
if (Comm.BrackIsMatched(mc.Groups[2].Value, 0, mc.Groups[2].Length))
{
FunSign fs = CreateFunSign(mc.Groups[1].Value, pool);
if (fs == null)
{
throw new ExpressErrorException("不存在的函数" + mc.Groups[1].Value + "！");
}
fs.ParamString = mc.Groups[2].Value;
return(fs);
}
}
//mc = Comm.MatchValNameExpress(signExp);
if (Comm.IsValName(signExp) && !IsProtectWord(signExp))
{
FunSign fs = CreateFunSign(signExp, pool);
if (fs != null)
{
return(fs);
}
VarSign vs = new VarSign(signExp, pool);
return(vs);
}
return(null);
}
}
internal static bool TryCreateSign(string sign, CalCurrent pool, out CalSign calSign)
{
calSign = CreateCalSign(sign, pool);
return(calSign != null);
}
public CustomFun(CalCurrent pool)
{
this.CalCurrent = pool;
}
public SetValueSign(CalCurrent pool)
{
this.CalCurrent = pool;
}
public VarSign(string varName, CalCurrent current)
{
VarName = varName;
this.CalCurrent = current;
}