public JsonItem ParseNext()
{
this.state = JsonNumberParseState.Start;
while (this.state != JsonNumberParseState.End)
{
switch (this.state)
{
case JsonNumberParseState.Start:
if (this.Consume(Numbers))
{
this.stringBuilder.Append(this.OutChar);
this.state = JsonNumberParseState.Digit;
}
else if (this.Consume('-'))
{
this.stringBuilder.Append(this.OutChar);
this.state = JsonNumberParseState.Neg;
}
else
{
return(this.MakeError(Numbers, '-'));
}
break;
case JsonNumberParseState.Neg:
if (this.Consume(Numbers))
{
this.stringBuilder.Append(this.OutChar);
this.state = JsonNumberParseState.Digit;
}
else
{
return(this.MakeError(Numbers));
}
break;
case JsonNumberParseState.Digit:
if (this.Consume(Numbers))
{
this.stringBuilder.Append(this.OutChar);
}
else if (this.Consume('.'))
{
this.stringBuilder.Append(this.OutChar);
this.state = JsonNumberParseState.Decimal;
}
else if (this.Consume('e', 'E'))
{
this.stringBuilder.Append(this.OutChar);
this.state = JsonNumberParseState.ExpSign;
}
else
{
this.state = JsonNumberParseState.End;
}
break;
case JsonNumberParseState.Decimal:
if (this.Consume(Numbers))
{
this.stringBuilder.Append(this.OutChar);
}
else if (this.Consume('e', 'E'))
{
this.stringBuilder.Append(this.OutChar);
this.state = JsonNumberParseState.ExpSign;
}
else
{
this.state = JsonNumberParseState.End;
}
break;
case JsonNumberParseState.ExpSign:
if (this.Consume('+', '-'))
{
this.stringBuilder.Append(this.OutChar);
this.state = JsonNumberParseState.Exp;
}
else if (this.Consume(Numbers))
{
this.stringBuilder.Append(this.OutChar);
this.state = JsonNumberParseState.ExpValue;
}
else
{
return(this.MakeError(Numbers, '+', '-'));
}
break;
case JsonNumberParseState.Exp:
if (this.Consume(Numbers))
{
this.stringBuilder.Append(this.OutChar);
this.state = JsonNumberParseState.ExpValue;
}
else
{
return(this.MakeError(Numbers));
}
break;
case JsonNumberParseState.ExpValue:
if (this.Consume(Numbers))
{
this.stringBuilder.Append(this.OutChar);
}
else
{
this.state = JsonNumberParseState.End;
}
break;
}
}
long asLong;
double asDouble;
var str = this.stringBuilder.ToString();
if (long.TryParse(str, out asLong))
{
return(new JsonInteger(asLong));
}
if (this.TryParse(str, out asDouble))
{
return(new JsonFloat(asDouble));
}
return(this.MakeError("the supplied number could not be parsed into a numerical value acceptable to the runtime."));
}
public JsonItem ParseNext()
{
this.state = JsonNumberParseState.Start;
while (this.state != JsonNumberParseState.End)
{
switch (this.state)
{
case JsonNumberParseState.Start:
if (this.Consume(Numbers))
{
this.stringBuilder.Append(this.OutChar);
this.state = JsonNumberParseState.Digit;
}
else if (this.Consume('-'))
{
this.stringBuilder.Append(this.OutChar);
this.state = JsonNumberParseState.Neg;
}
else
{
return this.MakeError(Numbers, '-');
}
break;
case JsonNumberParseState.Neg:
if (this.Consume(Numbers))
{
this.stringBuilder.Append(this.OutChar);
this.state = JsonNumberParseState.Digit;
}
else
{
return this.MakeError(Numbers);
}
break;
case JsonNumberParseState.Digit:
if (this.Consume(Numbers))
{
this.stringBuilder.Append(this.OutChar);
}
else if (this.Consume('.'))
{
this.stringBuilder.Append(this.OutChar);
this.state = JsonNumberParseState.Decimal;
}
else if (this.Consume('e', 'E'))
{
this.stringBuilder.Append(this.OutChar);
this.state = JsonNumberParseState.ExpSign;
}
else
{
this.state = JsonNumberParseState.End;
}
break;
case JsonNumberParseState.Decimal:
if (this.Consume(Numbers))
{
this.stringBuilder.Append(this.OutChar);
}
else if (this.Consume('e', 'E'))
{
this.stringBuilder.Append(this.OutChar);
this.state = JsonNumberParseState.ExpSign;
}
else
{
this.state = JsonNumberParseState.End;
}
break;
case JsonNumberParseState.ExpSign:
if (this.Consume('+', '-'))
{
this.stringBuilder.Append(this.OutChar);
this.state = JsonNumberParseState.Exp;
}
else if (this.Consume(Numbers))
{
this.stringBuilder.Append(this.OutChar);
this.state = JsonNumberParseState.ExpValue;
}
else
{
return this.MakeError(Numbers, '+', '-');
}
break;
case JsonNumberParseState.Exp:
if (this.Consume(Numbers))
{
this.stringBuilder.Append(this.OutChar);
this.state = JsonNumberParseState.ExpValue;
}
else
{
return this.MakeError(Numbers);
}
break;
case JsonNumberParseState.ExpValue:
if (this.Consume(Numbers))
{
this.stringBuilder.Append(this.OutChar);
}
else
{
this.state = JsonNumberParseState.End;
}
break;
}
}
long asLong;
double asDouble;
var str = this.stringBuilder.ToString();
if (long.TryParse(str, out asLong))
{
return new JsonInteger(asLong);
}
if (this.TryParse(str, out asDouble))
{
return new JsonFloat(asDouble);
}
return this.MakeError("the supplied number could not be parsed into a numerical value acceptable to the runtime.");
}
