Initial commit

1 files changed, 112 insertions, 0 deletions

diff --git a/gamemode/shared/lockbox/stream.lua b/gamemode/shared/lockbox/stream.lua
new file mode 100644
index 0000000..aeb3b18
--- /dev/null
+++ b/gamemode/shared/lockbox/stream.lua
@@ -0,0 +1,112 @@
+local Queue = include("queue.lua");
+local String = string
+
+local Stream = {};
+
+
+Stream.fromString = function(string)
+	local i=0;
+	return function()
+		print("string is:" .. string)
+		print("len is:" .. string.len(string))
+		print("i is:" .. i)
+		i=i+1;
+		if(i <= string.len(string)) then
+			return string.byte(string,i);
+		else
+			return nil;
+		end
+	end
+end
+
+
+Stream.toString = function(stream)
+	local array = {};
+	local i=1;
+
+	local byte = stream();
+	while byte ~= nil do
+		array[i] = String.char(byte);
+		i = i+1;
+		byte = stream();
+	end
+
+	return table.concat(array,"");
+end
+
+
+Stream.fromArray = function(array)
+	local queue = Queue();
+	local i=1;
+
+	local byte = array[i];
+	while byte ~= nil do
+		queue.push(byte);
+		i=i+1;
+		byte = array[i];
+	end
+
+	return queue.pop;
+end
+
+
+Stream.toArray = function(stream)
+	local array = {};
+	local i=1;
+
+	local byte = stream();
+	while byte ~= nil do
+		array[i] = byte;
+		i = i+1;
+		byte = stream();
+	end
+
+	return array;
+end
+
+
+local fromHexTable = {};
+for i=0,255 do
+	fromHexTable[String.format("%02X",i)]=i;
+	fromHexTable[String.format("%02x",i)]=i;
+end
+
+Stream.fromHex = function(hex)
+	local queue = Queue();
+
+	for i=1,String.len(hex)/2 do
+		local h = String.sub(hex,i*2-1,i*2);
+		queue.push(fromHexTable[h]);
+	end
+
+	return queue.pop;
+end
+
+
+
+local toHexTable = {};
+for i=0,255 do
+	toHexTable[i]=String.format("%02X",i);
+end
+
+Stream.toHex = function(stream)
+	print("tohex called with stream")
+	print(stream)
+	local hex = {};
+	local i = 1;
+
+	local byte = stream();
+	print("First byte is")
+	print(byte)
+	while byte ~= nil do
+		print("Createing hex:")
+		print(table.concat(hex,""))
+		hex[i] = toHexTable[byte];
+		i=i+1;
+		byte = stream();
+	end
+
+	return table.concat(hex,"");
+end
+
+return Stream;