public static void interpret(string argument)
{
string[] subStrings = argument.Split(' ');
string firstArg = subStrings[0];
Boolean found;
v1 = new Variable(subStrings[1], subStrings[1]);
v2 = new Variable(subStrings[2], subStrings[2]);
v3 = new Variable(subStrings[3], subStrings[3]);
LinkedListNode <Variable> node;
LinkedListNode <File> filelist;
String temp;
switch (firstArg)
{
case "echo":
node = Kernel.variables.First;
found = false;
while (node != null)
{
if (node.Value.name == subStrings[1])
{
Console.WriteLine("Value = " + node.Value.getNumberValue());
found = true;
}
node = node.Next;
}
if (!found)
{
Console.WriteLine(subStrings[1]);
}
break;
case "create":
bool end = false;
int lineNum = 0;
string buffer = "";
string[] filename = subStrings[1].Split('.');
File file = new File(filename[0], filename[1]);
while (!end)
{
Console.Write(lineNum + ": ");
string read = Console.ReadLine();
if (read == "save")
{
break;
}
buffer += read + '\n';
lineNum++;
}
file.setContent(buffer);
file.setLineCount(lineNum);
Console.WriteLine("***File saved.***");
file.setFileName(filename[0] + "." + filename[1]);
Kernel.file_directory.AddLast(file);
break;
case "dir":
filelist = Kernel.file_directory.First;
while (filelist != null)
{
Console.WriteLine("File name: " + filelist.Value.getName() + "\t File extension: " + filelist.Value.getExtension() + "\t File Size: " + filelist.Value.getSize() + " bytes");
filelist = filelist.Next;
}
break;
case "set":
int n;
node = Kernel.variables.First;
found = false;
try
{
n = int.Parse(subStrings[2]);
int value = v2.getValue(subStrings[2]);
v1.setValue(value);
}
catch
{
v1 = v2;
}
while (node != null)
{
if (node.Value.name == v1.getName())
{
node.Value.setValue(v1.getNumberValue());
found = true;
break;
}
else
{
node = node.Next;
}
}
if (!found)
{
Kernel.variables.AddLast(v1);
}
Console.WriteLine(subStrings[1] + " = " + v2.getValue(subStrings[2]));
break;
case "add":
node = Kernel.variables.First;
while (node != null)
{
if (node.Value.name == v1.getName())
{
a = node.Value.getNumberValue();
}
else if (node.Value.name == v2.getName())
{
b = node.Value.getNumberValue();
}
node = node.Next;
}
try
{
a = int.Parse(subStrings[1]);
}
catch
{
v1 = new Variable(subStrings[1], subStrings[1]);
}
try
{
b = int.Parse(subStrings[2]);
}
catch
{
v2 = new Variable(subStrings[2], subStrings[2]);
}
v3.setValue(a + b);
Kernel.variables.AddLast(v3);
Console.WriteLine(v3.getName() + " value = " + v3.getNumberValue());
break;
case "sub":
node = Kernel.variables.First;
while (node != null)
{
if (node.Value.name == v1.getName())
{
a = node.Value.getNumberValue();
}
else if (node.Value.name == v2.getName())
{
b = node.Value.getNumberValue();
}
node = node.Next;
}
try
{
a = int.Parse(subStrings[1]);
}
catch
{
v1 = new Variable(subStrings[1], subStrings[1]);
}
try
{
b = int.Parse(subStrings[2]);
}
catch
{
v2 = new Variable(subStrings[2], subStrings[2]);
}
v3.setValue(a - b);
Kernel.variables.AddLast(v3);
Console.WriteLine(v3.getName() + " value = " + v3.getNumberValue());
break;
case "mul":
node = Kernel.variables.First;
while (node != null)
{
if (node.Value.name == v1.getName())
{
a = node.Value.getNumberValue();
}
else if (node.Value.name == v2.getName())
{
b = node.Value.getNumberValue();
}
node = node.Next;
}
try
{
a = int.Parse(subStrings[1]);
}
catch
{
v1 = new Variable(subStrings[1], subStrings[1]);
}
try
{
b = int.Parse(subStrings[2]);
}
catch
{
v2 = new Variable(subStrings[2], subStrings[2]);
}
v3.setValue(a * b);
Kernel.variables.AddLast(v3);
Console.WriteLine(v3.getName() + " value = " + v3.getNumberValue());
break;
case "div":
node = Kernel.variables.First;
while (node != null)
{
if (node.Value.name == v1.getName())
{
a = node.Value.getNumberValue();
}
else if (node.Value.name == v2.getName())
{
b = node.Value.getNumberValue();
}
node = node.Next;
}
try
{
a = int.Parse(subStrings[1]);
}
catch
{
v1 = new Variable(subStrings[1], subStrings[1]);
}
try
{
b = int.Parse(subStrings[2]);
}
catch
{
v2 = new Variable(subStrings[2], subStrings[2]);
}
v3.setValue(a / b);
Kernel.variables.AddLast(v3);
Console.WriteLine(v3.getName() + " value = " + v3.getNumberValue());
break;
case "run":
string content = "";
int numTimes = int.Parse(subStrings[1]);
string[] bat = subStrings[2].Split('.');
if (!(bat[1] == "bat"))
{
Console.WriteLine("Invalid file type. Only '.bat' file extensions can be used with the run command.");
}
else if (checkFileExists(subStrings[2]) == null)
{
Console.WriteLine(subStrings[2] + " does not exist.");
return;
}
else
{
LinkedListNode <File> ll = Kernel.file_directory.First;
while (ll != null)
{
if (ll.Value.getFileName() == subStrings[2])
{
content = ll.Value.getContent();
}
ll = ll.Next;
}
for (int i = 0; i < numTimes; i++)
{
int index = 0;
while (true)
{
string line = "";
while (content[index] != '\n')
{
line += content[index];
index++;
}
if (index >= content.Length)
{
break;
}
index++;
interpret(line);
}
}
}
break;
case "runall":
string[] fileNames = new string[subStrings.Length - 2];
int num = int.Parse(subStrings[1]);
int counter = 0;
string[] contents = new string[subStrings.Length - 2];
for (int i = 2; i < subStrings.Length; i++)
{
fileNames[counter] = subStrings[i];
counter++;
}
for (int j = 0; j < num; j++)
{
for (int i = 0; i < fileNames.Length; i++)
{
string[] batch = fileNames[i].Split('.');
if (!(batch[1] == "bat"))
{
Console.WriteLine("Invalid file type. Only '.bat' file extensions can be used with the run command.");
}
else if (checkFileExists(fileNames[i]) == null)
{
Console.WriteLine(fileNames[i] + " does not exist.");
return;
}
else
{
LinkedListNode <File> ll = Kernel.file_directory.First;
while (ll != null)
{
if (ll.Value.getFileName() == fileNames[i])
{
contents[i] = ll.Value.getContent();
}
ll = ll.Next;
}
int index = 0;
while (true)
{
string line = "";
string con = "";
con = contents[i];
while (con[index] != '\n')
{
line += con[index];
index++;
}
if (index >= con.Length)
{
break;
}
index++;
interpret(line);
}
}
}
}
break;
default:
Console.WriteLine("Unknown Command. Please try again.");
break;
}
}
