/// <summary>
/// Creates an infinite constant based on the first character of the input.
/// </summary>
/// <remarks>
/// Because this needs to work in APL mode also, we check the length of the input value.
/// If it is above 3 then it is the negative infinity.
/// </remarks>
/// <param name="value">input: '-Inf' or 'Inf'</param>
/// <returns>
/// Returns an <see cref="AST.Constant"/> with a
/// <see cref="ConstantType.NegativeInfinity"/> or <see cref="ConstantType.PositiveInfinity"/>.
/// </returns>
public static Constant InfConstant(string value)
{
// Check if value.Length > "Inf".Length
if (value.Length > 3) // Magic Number: 3 is the length of 'Inf'
{
return(new Constant(StringProcessor.ProcessAPLNumber(value), ConstantType.NegativeInfinity));
}
else
{
return(new Constant(StringProcessor.ProcessAPLNumber(value), ConstantType.PositiveInfinity));
}
}
/// <summary>
/// Build a float constant.
/// </summary>
/// <param name="value">The float value as a string</param>
/// <returns>Returns an <see cref="AST.Constant"/> with a <see cref="ConstantType.Double"/>.</returns>
public static Constant FloatConstant(string value)
{
return(new Constant(StringProcessor.ProcessAPLNumber(value), ConstantType.Double));
}
/// <summary>
/// Build an integer constant.
/// </summary>
/// <param name="value">The integer value as a string</param>
/// <returns>Returns an <see cref="AST.Constant"/> with a <see cref="ConstantType.Integer"/>.</returns>
public static Constant IntConstant(string value)
{
return(new Constant(StringProcessor.ProcessAPLNumber(value), ConstantType.Integer));
}
