/// <summary>
/// Parses the given expression string to a list of expression items.
/// </summary>
internal void ParseExpression()
{
Scanner scanner = new Scanner(rawExpression);
State state;
parsedExpression = new List <ExpressionItem>();
//Parse until the expression string has no more tokens.
while (scanner.HasNext())
{
state = new Q0State(scanner);
while (!state.IsComplete())
{
state = state.Next();
}
parsedExpression.Add(state.Token.GetExpressionItem());
}
}
static void Main(string[] args)
{
Scanner sc;
try
{
sc = new Scanner(null);
Console.WriteLine("Fail");
Console.WriteLine();
}
catch (Exception e)
{
Console.WriteLine(e.Message);
Console.WriteLine();
}
sc = new Scanner("Hej på dig min lilla vän", "ll");
while (sc.HasNext())
{
Console.WriteLine(sc.Peek());
Console.WriteLine(sc.Next());
}
string testString = "hej123 34uie 12 87.23e+45 .23 34E-100 .9E32 +-*/";
Console.WriteLine(testString);
Scanner sc0 = new Scanner(testString);
State state;
List <Token> tokenList = new List <Token>();
while (sc0.HasNext())
{
state = new Q0State(sc0);
while (!state.IsComplete())
{
state = state.Next();
}
tokenList.Add(state.Token);
}
ReferenceResolver resolver = ReferenceResolver.GetResolver();
VariableItem item = resolver.GetVariable("hej123");
item.Value = 123456789;
VariableItem[] items = resolver.Variables;
List <ExpressionItem> itemList = new List <ExpressionItem>();
for (int i = 0; i < tokenList.Count; i++)
{
Console.WriteLine(tokenList.ElementAt(i));
itemList.Add(tokenList.ElementAt(i).GetExpressionItem());
}
Console.WriteLine();
Console.WriteLine();
for (int i = 0; i < itemList.Count; i++)
{
try
{
Console.WriteLine(itemList.ElementAt(i).Value);
}
catch (Exception e)
{
Console.WriteLine(e.Message);
}
}
Console.WriteLine();
Console.WriteLine();
items = resolver.Variables;
for (int i = 0; i < items.Length; i++)
{
Console.WriteLine(items[i].Value);
}
string expressionString = "1+2*-variable";
Console.WriteLine(expressionString);
Scanner sc1 = new Scanner(expressionString);
State state1;
List <Token> tokenList1 = new List <Token>();
while (sc1.HasNext())
{
state1 = new Q0State(sc1);
while (!state1.IsComplete())
{
state1 = state1.Next();
}
tokenList1.Add(state1.Token);
}
List <ExpressionItem> itemList1 = new List <ExpressionItem>();
for (int i = 0; i < tokenList1.Count; i++)
{
Console.WriteLine(tokenList1.ElementAt(i));
itemList1.Add(tokenList1.ElementAt(i).GetExpressionItem());
}
Interpreter interpreter = new Interpreter(itemList1);
ExpressionItem item1;
try
{
item1 = interpreter.Interpret();
Console.WriteLine(item1.Value);
}
catch (Exception ex)
{
Console.WriteLine(ex.Message);
Console.WriteLine(ex.Source);
Console.WriteLine(ex.StackTrace);
}
Console.Read();
}