public static void Main(string[] args)
{
NLP_Lexer.Lexer nlpLexer = new NLP_Lexer.Lexer(ACCESS_TOKEN);
// Test input
string inp_a = "print add 4 and 5";
string lex_chunk_a = nlpLexer.Tokenise(inp_a);
Console.WriteLine("Input = \n\t" + inp_a);
Console.WriteLine(lex_chunk_a);
try
{
CoreParser.Lexer lexer = new CoreParser.Lexer(lex_chunk_a);
lexer.Tokenise();
List <Token> tokens = lexer.getTokenList();
CoreParser.Parser.Parser parser = new CoreParser.Parser.Parser();
CoreParser.Parser.AST.Node ast = parser.Parse(tokens);
Engine.Engine engine = new Engine.Engine();
engine.Run(ast);
} catch (Exception e) {
Console.WriteLine(e.Message);
}
}
public ParseTreeDisplay(CoreParser.Parser.AST.Node node) :
base(Gtk.WindowType.Toplevel)
{
this.ast = node;
//Create draw area
tree.ExposeEvent += OnExpose;
this.Add(tree);
this.Title = "Parse Tree";
//this.Build();
}
private void DisplayTree(CoreParser.Parser.AST.Node n, Cairo.Context ctx, Cairo.PointD currentPoint, int level, bool left, bool leftTree)
{
// Init width and height
int width = 0;
int height = 0;
// Get window size
this.GetSize(out width, out height);
// Set y value
double y = (level * 50) + 15;
// initialise x value
double x = 0;
// Calculate x value
if (level == 0)
{
x = (width) - 50;
ctx.MoveTo(x, y);
//ctx.ShowText(n.Token);
}
else
{
if (leftTree)
{
x = currentPoint.X - 50.0;
}
else
{
x = currentPoint.X + 45.0;
}
}
if (n.HasChildren())
{
// Get node's children
int childrenLength = n.Children().Count;
for (int i = 0; i < childrenLength; i++)
{
// loop over children and calc level
CoreParser.Parser.AST.Node node = n.Children()[i];
y = ((level + 1) * 20) + 15;
// Calculate left or right
if (i % 2 == 0)
{
x = x - 50.0;
if (node.HasChildren())
{
DisplayTree(node, ctx, new Cairo.PointD
{
X = x + 45,
Y = y,
}, level + 1, true, true);
}
}
else
{
x = x + 100.0;
if (node.HasChildren())
{
DisplayTree(node, ctx, new Cairo.PointD
{
X = x + 65,
Y = y,
}, level + 1, true, true);
}
}
// Render the node's value to the window
ctx.MoveTo(x, y);
ctx.ShowText(node.Token.token);
}
}
}
