godotOscSharp/OscAddress.cs

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2023-08-15 21:36:55 +02:00
/*
godotOscSharp
Copyright (C) 2023 Cassandra de la Cruz-Munoz
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Affero General Public License as published
by the Free Software Foundation, either version 3 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 Affero General Public License for more details.
You should have received a copy of the GNU Affero General Public License
along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
2023-08-15 21:29:53 +02:00
using System;
using System.Text.RegularExpressions;
namespace godotOscSharp
{
public class Address
{
public string Pattern { get; }
public Address(string pattern)
{
if (string.IsNullOrEmpty(pattern))
{
throw new ArgumentException("Pattern cannot be null or empty");
}
if (!pattern.StartsWith("/"))
{
throw new ArgumentException("Pattern must start with a slash (/)");
}
if (pattern.Contains("//"))
{
throw new ArgumentException("Pattern cannot contain two consecutive slashes (//)");
}
if (pattern.Contains(" "))
{
throw new ArgumentException("Pattern cannot contain spaces");
}
if (!Regex.IsMatch(pattern, @"^/([\w\-\.\*]+/)*([\w\-\.\*]+|\*)$"))
{
throw new ArgumentException("Pattern contains invalid characters");
}
Pattern = pattern;
}
public byte[] ToBytes()
{
var result = new System.Collections.Generic.List<byte>();
result.AddRange(System.Text.Encoding.ASCII.GetBytes(Pattern));
result.Add(0);
var padding = 4 - (result.Count % 4);
for (int i = 0; i < padding; i++)
{
result.Add(0);
}
return result.ToArray();
}
public static Address Parse(byte[] data, ref int index)
{
var start = index;
while (data[index] != 0)
{
index++;
}
var pattern = System.Text.Encoding.ASCII.GetString(data, start, index - start);
index++;
var padding = 4 - ((index - start) % 4);
index += padding;
return new Address(pattern);
}
public override string ToString()
{
return Pattern;
}
}
}