1 files changed, 114 insertions, 0 deletions

diff --git a/OpenSim/Framework/Console/ConsoleUtil.cs b/OpenSim/Framework/Console/ConsoleUtil.cs
new file mode 100644
index 0000000..2612a50
--- /dev/null
+++ b/OpenSim/Framework/Console/ConsoleUtil.cs
@@ -0,0 +1,114 @@
+/*
+ * Copyright (c) Contributors, http://opensimulator.org/
+ * See CONTRIBUTORS.TXT for a full list of copyright holders.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *     * Redistributions of source code must retain the above copyright
+ *       notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above copyright
+ *       notice, this list of conditions and the following disclaimer in the
+ *       documentation and/or other materials provided with the distribution.
+ *     * Neither the name of the OpenSimulator Project nor the
+ *       names of its contributors may be used to endorse or promote products
+ *       derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Reflection;
+using log4net;
+using OpenMetaverse;
+
+public class ConsoleUtil
+{
+    private static readonly ILog m_log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
+
+    public const string MinRawConsoleVectorValue = "-~";
+    public const string MaxRawConsoleVectorValue = "~";
+
+    public const string VectorSeparator = ",";
+    public static char[] VectorSeparatorChars = VectorSeparator.ToCharArray();
+
+    /// <summary>
+    /// Convert a minimum vector input from the console to an OpenMetaverse.Vector3
+    /// </summary>
+    /// <param name='rawConsoleVector'>/param>
+    /// <param name='vector'></param>
+    /// <returns></returns>
+    public static bool TryParseConsoleMinVector(string rawConsoleVector, out Vector3 vector)
+    {
+        return TryParseConsoleVector(rawConsoleVector, c => float.MinValue.ToString(), out vector);
+    }
+
+    /// <summary>
+    /// Convert a maximum vector input from the console to an OpenMetaverse.Vector3
+    /// </summary>
+    /// <param name='rawConsoleVector'>/param>
+    /// <param name='vector'></param>
+    /// <returns></returns>
+    public static bool TryParseConsoleMaxVector(string rawConsoleVector, out Vector3 vector)
+    {
+        return TryParseConsoleVector(rawConsoleVector, c => float.MaxValue.ToString(), out vector);
+    }
+
+    /// <summary>
+    /// Convert a vector input from the console to an OpenMetaverse.Vector3
+    /// </summary>
+    /// <param name='rawConsoleVector'>
+    /// A string in the form <x>,<y>,<z> where there is no space between values.
+    /// Any component can be missing (e.g. ,,40).  blankComponentFunc is invoked to replace the blank with a suitable value
+    /// Also, if the blank component is at the end, then the comma can be missed off entirely (e.g. 40,30 or 40)
+    /// The strings "~" and "-~" are valid in components.  The first substitutes float.MaxValue whilst the second is float.MinValue
+    /// Other than that, component values must be numeric.
+    /// </param>
+    /// <param name='blankComponentFunc'></param>
+    /// <param name='vector'></param>
+    /// <returns></returns>
+    public static bool TryParseConsoleVector(
+        string rawConsoleVector, Func<string, string> blankComponentFunc, out Vector3 vector)
+    {
+        List<string> components = rawConsoleVector.Split(VectorSeparatorChars).ToList();
+
+        if (components.Count < 1 || components.Count > 3)
+        {
+            vector = Vector3.Zero;
+            return false;
+        }
+
+        for (int i = components.Count; i < 3; i++)
+            components.Add("");
+
+        List<string> semiDigestedComponents
+            = components.ConvertAll<string>(
+                c =>
+                {
+                    if (c == "")
+                        return blankComponentFunc.Invoke(c);
+                    else if (c == MaxRawConsoleVectorValue)
+                        return float.MaxValue.ToString();
+                    else if (c == MinRawConsoleVectorValue)
+                        return float.MinValue.ToString();
+                    else
+                        return c;
+                });
+
+        string semiDigestedConsoleVector = string.Join(VectorSeparator, semiDigestedComponents.ToArray());
+
+        m_log.DebugFormat("[CONSOLE UTIL]: Parsing {0} into OpenMetaverse.Vector3", semiDigestedConsoleVector);
+
+        return Vector3.TryParse(semiDigestedConsoleVector, out vector);
+    }
+}
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