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259 lines
8.8 KiB
C#

using System;
using System.Text;
namespace Unity.VisualScripting.Dependencies.NCalc
{
public abstract class LogicalExpression
{
public BinaryExpression And(LogicalExpression operand)
{
return new BinaryExpression(BinaryExpressionType.And, this, operand);
}
public BinaryExpression And(object operand)
{
return new BinaryExpression(BinaryExpressionType.And, this, new ValueExpression(operand));
}
public BinaryExpression DividedBy(LogicalExpression operand)
{
return new BinaryExpression(BinaryExpressionType.Div, this, operand);
}
public BinaryExpression DividedBy(object operand)
{
return new BinaryExpression(BinaryExpressionType.Div, this, new ValueExpression(operand));
}
public BinaryExpression EqualsTo(LogicalExpression operand)
{
return new BinaryExpression(BinaryExpressionType.Equal, this, operand);
}
public BinaryExpression EqualsTo(object operand)
{
return new BinaryExpression(BinaryExpressionType.Equal, this, new ValueExpression(operand));
}
public BinaryExpression GreaterThan(LogicalExpression operand)
{
return new BinaryExpression(BinaryExpressionType.Greater, this, operand);
}
public BinaryExpression GreaterThan(object operand)
{
return new BinaryExpression(BinaryExpressionType.Greater, this, new ValueExpression(operand));
}
public BinaryExpression GreaterOrEqualThan(LogicalExpression operand)
{
return new BinaryExpression(BinaryExpressionType.GreaterOrEqual, this, operand);
}
public BinaryExpression GreaterOrEqualThan(object operand)
{
return new BinaryExpression(BinaryExpressionType.GreaterOrEqual, this, new ValueExpression(operand));
}
public BinaryExpression LesserThan(LogicalExpression operand)
{
return new BinaryExpression(BinaryExpressionType.Lesser, this, operand);
}
public BinaryExpression LesserThan(object operand)
{
return new BinaryExpression(BinaryExpressionType.Lesser, this, new ValueExpression(operand));
}
public BinaryExpression LesserOrEqualThan(LogicalExpression operand)
{
return new BinaryExpression(BinaryExpressionType.LesserOrEqual, this, operand);
}
public BinaryExpression LesserOrEqualThan(object operand)
{
return new BinaryExpression(BinaryExpressionType.LesserOrEqual, this, new ValueExpression(operand));
}
public BinaryExpression Minus(LogicalExpression operand)
{
return new BinaryExpression(BinaryExpressionType.Minus, this, operand);
}
public BinaryExpression Minus(object operand)
{
return new BinaryExpression(BinaryExpressionType.Minus, this, new ValueExpression(operand));
}
public BinaryExpression Modulo(LogicalExpression operand)
{
return new BinaryExpression(BinaryExpressionType.Modulo, this, operand);
}
public BinaryExpression Modulo(object operand)
{
return new BinaryExpression(BinaryExpressionType.Modulo, this, new ValueExpression(operand));
}
public BinaryExpression NotEqual(LogicalExpression operand)
{
return new BinaryExpression(BinaryExpressionType.NotEqual, this, operand);
}
public BinaryExpression NotEqual(object operand)
{
return new BinaryExpression(BinaryExpressionType.NotEqual, this, new ValueExpression(operand));
}
public BinaryExpression Or(LogicalExpression operand)
{
return new BinaryExpression(BinaryExpressionType.Or, this, operand);
}
public BinaryExpression Or(object operand)
{
return new BinaryExpression(BinaryExpressionType.Or, this, new ValueExpression(operand));
}
public BinaryExpression Plus(LogicalExpression operand)
{
return new BinaryExpression(BinaryExpressionType.Plus, this, operand);
}
public BinaryExpression Plus(object operand)
{
return new BinaryExpression(BinaryExpressionType.Plus, this, new ValueExpression(operand));
}
public BinaryExpression Mult(LogicalExpression operand)
{
return new BinaryExpression(BinaryExpressionType.Times, this, operand);
}
public BinaryExpression Mult(object operand)
{
return new BinaryExpression(BinaryExpressionType.Times, this, new ValueExpression(operand));
}
public BinaryExpression BitwiseOr(LogicalExpression operand)
{
return new BinaryExpression(BinaryExpressionType.BitwiseOr, this, operand);
}
public BinaryExpression BitwiseOr(object operand)
{
return new BinaryExpression(BinaryExpressionType.BitwiseOr, this, new ValueExpression(operand));
}
public BinaryExpression BitwiseAnd(LogicalExpression operand)
{
return new BinaryExpression(BinaryExpressionType.BitwiseAnd, this, operand);
}
public BinaryExpression BitwiseAnd(object operand)
{
return new BinaryExpression(BinaryExpressionType.BitwiseAnd, this, new ValueExpression(operand));
}
public BinaryExpression BitwiseXOr(LogicalExpression operand)
{
return new BinaryExpression(BinaryExpressionType.BitwiseXOr, this, operand);
}
public BinaryExpression BitwiseXOr(object operand)
{
return new BinaryExpression(BinaryExpressionType.BitwiseXOr, this, new ValueExpression(operand));
}
public BinaryExpression LeftShift(LogicalExpression operand)
{
return new BinaryExpression(BinaryExpressionType.LeftShift, this, operand);
}
public BinaryExpression LeftShift(object operand)
{
return new BinaryExpression(BinaryExpressionType.LeftShift, this, new ValueExpression(operand));
}
public BinaryExpression RightShift(LogicalExpression operand)
{
return new BinaryExpression(BinaryExpressionType.RightShift, this, operand);
}
public BinaryExpression RightShift(object operand)
{
return new BinaryExpression(BinaryExpressionType.RightShift, this, new ValueExpression(operand));
}
public override string ToString()
{
var serializer = new SerializationVisitor();
Accept(serializer);
return serializer.Result.ToString().TrimEnd(' ');
}
// This method is not just syntactic sugar.
// It chooses the proper overload of Visit() based on the current type.
public virtual void Accept(LogicalExpressionVisitor visitor)
{
throw new NotImplementedException();
}
private const char BS = '\\';
private static string ExtractString(string text)
{
var sb = new StringBuilder(text);
var startIndex = 1; // Skip initial quote
var slashIndex = -1;
while ((slashIndex = sb.ToString().IndexOf(BS, startIndex)) != -1)
{
var escapeType = sb[slashIndex + 1];
switch (escapeType)
{
case 'u':
var hcode = String.Concat(sb[slashIndex + 4], sb[slashIndex + 5]);
var lcode = String.Concat(sb[slashIndex + 2], sb[slashIndex + 3]);
var unicodeChar = Encoding.Unicode.GetChars(new[] { Convert.ToByte(hcode, 16), Convert.ToByte(lcode, 16) })[0];
sb.Remove(slashIndex, 6).Insert(slashIndex, unicodeChar);
break;
case 'n':
sb.Remove(slashIndex, 2).Insert(slashIndex, '\n');
break;
case 'r':
sb.Remove(slashIndex, 2).Insert(slashIndex, '\r');
break;
case 't':
sb.Remove(slashIndex, 2).Insert(slashIndex, '\t');
break;
case '\'':
sb.Remove(slashIndex, 2).Insert(slashIndex, '\'');
break;
case '\\':
sb.Remove(slashIndex, 2).Insert(slashIndex, '\\');
break;
default:
throw new ApplicationException("Unvalid escape sequence: \\" + escapeType);
}
startIndex = slashIndex + 1;
}
sb.Remove(0, 1);
sb.Remove(sb.Length - 1, 1);
return sb.ToString();
}
}
}