413 lines
12 KiB
C#
413 lines
12 KiB
C#
// <copyright file="gpl-2.0.txt">
|
|
// ORIGINAL CODE BASE IS Copyright (C) 2006-2010 by Alphons van der Heijden.
|
|
// The code was donated on 2010-04-28 by Alphons van der Heijden to Brandon 'Dimentox Travanti' Husbands &
|
|
// Malcolm J. Kudra, who in turn License under the GPLv2 in agreement with Alphons van der Heijden's wishes.
|
|
//
|
|
// The community would like to thank Alphons for all of his hard work, blood sweat and tears. Without his work
|
|
// the community would be stuck with crappy editors.
|
|
//
|
|
// The source code in this file ("Source Code") is provided by The LSLEditor Group to you under the terms of the GNU
|
|
// General Public License, version 2.0 ("GPL"), unless you have obtained a separate licensing agreement ("Other
|
|
// License"), formally executed by you and The LSLEditor Group.
|
|
// Terms of the GPL can be found in the gplv2.txt document.
|
|
//
|
|
// GPLv2 Header
|
|
// ************
|
|
// LSLEditor, a External editor for the LSL Language.
|
|
// Copyright (C) 2010 The LSLEditor Group.
|
|
//
|
|
// This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public
|
|
// License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any
|
|
// later version.
|
|
//
|
|
// This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied
|
|
// warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
|
|
// details.
|
|
//
|
|
// You should have received a copy of the GNU General Public License along with this program; if not, write to the Free
|
|
// Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
|
|
// ********************************************************************************************************************
|
|
// The above copyright notice and this permission notice shall be included in copies or substantial portions of the
|
|
// Software.
|
|
// ********************************************************************************************************************
|
|
// </copyright>
|
|
//
|
|
// <summary>
|
|
// Float.cs
|
|
//
|
|
// </summary>
|
|
|
|
using System;
|
|
using System.Diagnostics.CodeAnalysis;
|
|
using System.Text.RegularExpressions;
|
|
|
|
namespace LSLEditor
|
|
{
|
|
/// <summary>
|
|
/// This part of the SecondLife class defines the Float struct.
|
|
/// </summary>
|
|
[SuppressMessage("StyleCop.CSharp.DocumentationRules", "SA1642:ConstructorSummaryDocumentationMustBeginWithStandardText", Justification = "Reviewed.")]
|
|
public partial class SecondLife
|
|
{
|
|
/// <summary>
|
|
/// A struct for Float objects.
|
|
/// </summary>
|
|
public struct Float
|
|
{
|
|
/// <summary>
|
|
/// Stores the Float value.
|
|
/// </summary>
|
|
private object objValue;
|
|
|
|
/// <summary>
|
|
/// Gets or sets the value of the Float.
|
|
/// </summary>
|
|
/// <value>Gets or sets the objValue data member.</value>
|
|
private Double value
|
|
{
|
|
get
|
|
{
|
|
if (objValue == null) {
|
|
objValue = (Double)0;
|
|
}
|
|
return (Double)objValue;
|
|
}
|
|
|
|
set
|
|
{
|
|
objValue = value;
|
|
}
|
|
}
|
|
|
|
/// <summary>
|
|
/// Initialises a new instance of the <see cref="Float"/> struct.
|
|
/// </summary>
|
|
/// <param name="a"></param>
|
|
public Float(Double a)
|
|
{
|
|
this.objValue = a;
|
|
}
|
|
|
|
#region public Float(string s)
|
|
/// <summary>
|
|
/// Initialises a new instance of the <see cref="Float"/> struct.
|
|
/// </summary>
|
|
/// <param name="s"></param>
|
|
public Float(string s)
|
|
{
|
|
Regex r = new Regex(
|
|
@"\A[ ]*(?<sign>[+-]?)
|
|
(?:
|
|
(?:
|
|
0x
|
|
(?:
|
|
(?:
|
|
(?<int>[0-9a-f]*)
|
|
(?:
|
|
(?:\.
|
|
(?<frac>[0-9a-f]*)
|
|
)
|
|
|
|
|
)
|
|
)
|
|
(?:
|
|
(?:p
|
|
(?<exp>[-+]?[\d]*)
|
|
)
|
|
|
|
|
)
|
|
)
|
|
)
|
|
|
|
|
(?<dec>
|
|
[\d]*[.]?[\d]*
|
|
(?:
|
|
(?:
|
|
e[+-]?[\d]*
|
|
)
|
|
|
|
|
)
|
|
)
|
|
)",
|
|
RegexOptions.IgnoreCase | RegexOptions.IgnorePatternWhitespace);
|
|
Match m = r.Match(s);
|
|
Double mantissa = 0.0;
|
|
if (r.Match(s).Groups["dec"].Value.Length > 0) {
|
|
mantissa = Convert.ToDouble(r.Match(s).Groups["dec"].Value);
|
|
}
|
|
if (m.Groups["int"].Success) {
|
|
if (m.Groups["int"].Value.Length > 0) {
|
|
////System.Console.WriteLine("i:\t" + m.Groups["int"].Value);
|
|
mantissa = Convert.ToInt64(m.Groups["int"].Value, 16);
|
|
}
|
|
if (m.Groups["frac"].Value.Length > 0) {
|
|
////System.Console.WriteLine("f:\t"+m.Groups["frac"].Value);
|
|
mantissa += Convert.ToInt64(m.Groups["frac"].Value, 16) / Math.Pow(16.0, m.Groups["frac"].Value.Length);
|
|
}
|
|
if (m.Groups["exp"].Value.Length > 0) {
|
|
////System.Console.WriteLine("e:\t" + m.Groups["exp"].Value);
|
|
mantissa *= Math.Pow(2.0, Convert.ToInt64(m.Groups["exp"].Value, 10));
|
|
}
|
|
}
|
|
if (m.Groups["sign"].Value == "-") {
|
|
this.objValue = -mantissa;
|
|
} else {
|
|
this.objValue = mantissa;
|
|
}
|
|
}
|
|
#endregion
|
|
|
|
/// <summary>
|
|
/// No idea of the intention here ;-).
|
|
/// </summary>
|
|
/// <returns>The Float value as a 32 bit number.</returns>
|
|
public override int GetHashCode()
|
|
{
|
|
return (int)this.value % System.Int32.MaxValue;
|
|
}
|
|
|
|
/// <summary>
|
|
/// Converts the Float to a string representation.
|
|
/// </summary>
|
|
/// <returns>String representation of the Float.</returns>
|
|
public override string ToString()
|
|
{
|
|
return string.Format("{0:0.000000}", this.value);
|
|
}
|
|
|
|
/// <summary>
|
|
/// Converts the Float to a string representation.
|
|
/// </summary>
|
|
/// <param name="x"></param>
|
|
/// <returns>String representation of the Float.</returns>
|
|
public static explicit operator String(Float x)
|
|
{
|
|
return x.ToString();
|
|
}
|
|
|
|
/// <summary>
|
|
/// Converts the Float to a string representation.
|
|
/// </summary>
|
|
/// <param name="x"></param>
|
|
/// <returns>String representation of the Float.</returns>
|
|
public static implicit operator Double(Float x)
|
|
{
|
|
return x.value;
|
|
}
|
|
|
|
////public static implicit operator integer(Float x)
|
|
////{
|
|
//// return (int)x.value;
|
|
////}
|
|
|
|
/// <summary>
|
|
/// Creates a new instance of a Float from a string.
|
|
/// </summary>
|
|
/// <param name="s"></param>
|
|
/// <returns>A new Float instance.</returns>
|
|
public static explicit operator Float(string s)
|
|
{
|
|
return new Float(s);
|
|
}
|
|
|
|
/// <summary>
|
|
/// Creates a new instance of a Float from a String.
|
|
/// </summary>
|
|
/// <param name="s"></param>
|
|
/// <returns>A new Float instance.</returns>
|
|
public static explicit operator Float(String s)
|
|
{
|
|
return new Float(s.ToString());
|
|
}
|
|
|
|
/// <summary>
|
|
/// Creates a new instance of a Float from an Int32 .
|
|
/// </summary>
|
|
/// <param name="x"></param>
|
|
/// <returns>A new Float instance.</returns>
|
|
public static implicit operator Float(Int32 x)
|
|
{
|
|
return new Float((Double)x);
|
|
}
|
|
|
|
/// <summary>
|
|
/// Creates a new instance of a Float from a long.
|
|
/// </summary>
|
|
/// <param name="x"></param>
|
|
/// <returns>A new Float instance.</returns>
|
|
public static implicit operator Float(long x)
|
|
{
|
|
return new Float((int)(uint)x); // 6 jan 2008 , does this work????
|
|
}
|
|
|
|
/// <summary>
|
|
/// Creates a new instance of a Float from a Double.
|
|
/// </summary>
|
|
/// <param name="x"></param>
|
|
/// <returns>A new Float instance.</returns>
|
|
public static implicit operator Float(Double x)
|
|
{
|
|
return new Float(x);
|
|
}
|
|
|
|
/// <summary>
|
|
/// Creates a new instance of a Float from an integer type.
|
|
/// </summary>
|
|
/// <param name="x"></param>
|
|
/// <returns>A new Float instance.</returns>
|
|
public static implicit operator Float(integer x)
|
|
{
|
|
return new Float((Double)x);
|
|
}
|
|
|
|
/// <summary>
|
|
/// Calculates the result of multiplying a and b.
|
|
/// </summary>
|
|
/// <param name="a"></param>
|
|
/// <param name="b"></param>
|
|
/// <returns>The product of a and b.</returns>
|
|
public static Float operator *(Float a, Float b)
|
|
{
|
|
return new Float(a.value * b.value);
|
|
}
|
|
|
|
/// <summary>
|
|
/// Calculates the result of dividing a by b.
|
|
/// </summary>
|
|
/// <param name="a"></param>
|
|
/// <param name="b"></param>
|
|
/// <returns>The result of dividing a by b.</returns>
|
|
public static Float operator /(Float a, Float b)
|
|
{
|
|
return new Float(a.value / b.value);
|
|
}
|
|
|
|
/// <summary>
|
|
/// Calculates the result of incrementing the Float's value.
|
|
/// </summary>
|
|
/// <param name="a"></param>
|
|
/// <returns>The result of incrementing the Float's value.</returns>
|
|
public static Float operator ++(Float a)
|
|
{
|
|
return new Float(a.value + 1.0);
|
|
}
|
|
|
|
/// <summary>
|
|
/// Calculates the result of decrementing the Float's value.
|
|
/// </summary>
|
|
/// <param name="a"></param>
|
|
/// <returns>The result of decrementing the Float's value.</returns>
|
|
public static Float operator --(Float a)
|
|
{
|
|
return new Float(a.value - 1.0);
|
|
}
|
|
|
|
/// <summary>
|
|
/// Calculates the result of adding a to b.
|
|
/// </summary>
|
|
/// <param name="a"></param>
|
|
/// <param name="b"></param>
|
|
/// <returns>The result of adding a to b.</returns>
|
|
public static Float operator +(Float a, Float b)
|
|
{
|
|
return new Float(a.value + b.value);
|
|
}
|
|
|
|
/// <summary>
|
|
/// Calculates the result of subtracting a from b.
|
|
/// </summary>
|
|
/// <param name="a"></param>
|
|
/// <param name="b"></param>
|
|
/// <returns>The result of subtracting a from b.</returns>
|
|
public static Float operator -(Float a, Float b)
|
|
{
|
|
return new Float(a.value - b.value);
|
|
}
|
|
|
|
/// <summary>
|
|
/// Casts the Float to a boolean.
|
|
/// </summary>
|
|
/// <param name="a"></param>
|
|
/// <returns>A boolean value.</returns>
|
|
public static explicit operator bool(Float a)
|
|
{
|
|
return Math.Abs(a.value) >= Double.Epsilon;
|
|
}
|
|
|
|
/// <summary>
|
|
/// Defines a boolean true value.
|
|
/// </summary>
|
|
/// <param name="a"></param>
|
|
/// <returns>A boolean indicating whether the value is considered true.</returns>
|
|
public static bool operator true(Float a)
|
|
{
|
|
return Math.Abs(a.value) >= Double.Epsilon;
|
|
}
|
|
|
|
/// <summary>
|
|
/// Defines a boolean false value.
|
|
/// </summary>
|
|
/// <param name="a"></param>
|
|
/// <returns>A boolean indicating whether the value is considered false.</returns>
|
|
public static bool operator false(Float a)
|
|
{
|
|
return Math.Abs(a.value) < Double.Epsilon;
|
|
}
|
|
|
|
/// <summary>
|
|
/// Defines the equality operator.
|
|
/// </summary>
|
|
/// <param name="x">First operand.</param>
|
|
/// <param name="y">Second operand.</param>
|
|
/// <returns>A boolean value indicating equality.</returns>
|
|
public static bool operator ==(Float x, Float y)
|
|
{
|
|
return Math.Abs(x.value - y.value) < Double.Epsilon;
|
|
}
|
|
|
|
/// <summary>
|
|
/// Defines the inequality operator.
|
|
/// </summary>
|
|
/// <param name="x">First operand.</param>
|
|
/// <param name="y">Second operand.</param>
|
|
/// <returns>A boolean value indicating inequality.</returns>
|
|
public static bool operator !=(Float x, Float y)
|
|
{
|
|
return !(x == y);
|
|
}
|
|
|
|
/// <summary>
|
|
/// Compares two Floats.
|
|
/// </summary>
|
|
/// <param name="a">First operand.</param>
|
|
/// <param name="b">Second operand.</param>
|
|
/// <returns>An integer (-1, 0, or 1), indicating whether the first item is less than, same as, or greater than the second.</returns>
|
|
public static int Compare(Float a, Float b)
|
|
{
|
|
int intResult = 0;
|
|
if (a.value < b.value) {
|
|
intResult = -1;
|
|
} else if (a.value > b.value) {
|
|
intResult = 1;
|
|
}
|
|
return intResult;
|
|
}
|
|
|
|
/// <summary>
|
|
/// Defines the Equals operator.
|
|
/// </summary>
|
|
/// <param name="o"></param>
|
|
/// <returns>A boolean value indicating equality.</returns>
|
|
public override bool Equals(object o)
|
|
{
|
|
bool blnResult;
|
|
try {
|
|
blnResult = (bool)(this == (Float)o);
|
|
} catch {
|
|
blnResult = false;
|
|
}
|
|
return blnResult;
|
|
}
|
|
}
|
|
}
|
|
}
|