/// <summary>
/// 格式化code
/// </summary>
/// <returns></returns>
protected override string FormatCode()
{
return(CodeString.Trim().Replace("{{#elseif", ""));
}
/// <summary>
/// 格式化
/// </summary>
/// <returns></returns>
protected virtual string FormatCode()
{
return(CodeString.Trim().Replace("{{#if", ""));
}
public ExprRecResult Recognize(CodeString Code, PluginRoot Plugin, ref ExpressionNode Ret)
{
if (Code.Length == 0)
{
return(ExprRecResult.Unknown);
}
var OldCode = Code;
var State = Plugin.State;
var Container = Plugin.Container;
var Global = Container.GlobalContainer;
var RadixSpecified = false;
var Radix = 10;
var Sign = RecognizerHelper.GetSign(ref Code);
if (Code.Length == 0)
{
return(ExprRecResult.Unknown);
}
if (AtStartStrings != null)
{
var Result = Code.StartsWith(AtStartStrings, Skip);
if (Result.Index != -1)
{
Code = Code.TrimmedSubstring(State, Result.String.Length);
if (!Code.IsValid)
{
return(ExprRecResult.Failed);
}
RadixSpecified = true;
Radix = AtStart[Result.Index].Radix;
}
}
if (AtEndStrings != null)
{
var Result = Code.EndsWith(AtEndStrings, Skip);
if (Result.Index != -1)
{
if (Radix != -1)
{
State.Messages.Add(MessageId.MultipleRadix, Code);
return(ExprRecResult.Failed);
}
Code = Code.TrimmedSubstring(State, Result.String.Length);
if (!Code.IsValid)
{
return(ExprRecResult.Failed);
}
RadixSpecified = true;
Radix = AtStart[Result.Index].Radix;
}
}
if (RecognizerHelper.GetSign(ref Code))
{
Sign = !Sign;
}
if (Code.Length == 0 || (!char.IsDigit(Code[0]) && !RadixSpecified))
{
return(ExprRecResult.Unknown);
}
var Options = new ConvStrToNumberOptions();
var Type = TypeExtractor(Container, ref Code);
if (Type == null)
{
Options.Type = ConstValueType.Unknown;
}
else
{
var RType = Type.RealId as Type;
Options.Type = RType.ConstValueType;
}
Code = Code.Trim();
if (Code.Length == 0)
{
return(ExprRecResult.Unknown);
}
Options.Radix = Radix;
Options.Number = Code.String;
Options.LetterCase = LetterCase.OnlyUpper;
Options.EnableENotation = true;
Options.Sign = Sign;
ConstValue Value;
var Res = RecognizerHelper.ConvStrToNumber(State, Code, Options, out Value);
if (Res == SimpleRecResult.Unknown)
{
return(ExprRecResult.Unknown);
}
else if (Res == SimpleRecResult.Failed)
{
return(ExprRecResult.Failed);
}
if (Type == null)
{
Type = Constants.GetDefaultType(Container, Value.Type);
if (Type.RealId is NumberType && !Value.CheckBounds(Type))
{
var SystemType = Type.GetType();
do
{
var RType = Type.RealId as Type;
Type = Global.CommonIds.GetIdentifier(SystemType, RType.Size * 2);
if (Type == null)
{
if (typeof(SignedType).IsEquivalentTo(SystemType))
{
Type = Global.CommonIds.GetLargestType(typeof(UnsignedType));
}
else
{
Type = Global.CommonIds.GetLargestType(typeof(SignedType));
}
break;
}
} while (!Value.CheckBounds(Type));
}
}
if (!Value.CheckBounds(State, Type, OldCode))
{
return(ExprRecResult.Failed);
}
var Flags = Options.Type == ConstValueType.Unknown ?
ExpressionFlags.AutoConvert : ExpressionFlags.None;
Ret = new ConstExpressionNode(Type, Value, OldCode, Flags);
return(ExprRecResult.Succeeded);
}