public Node Parse()
{
Node root = null;
// Initialize parser
if (!_initialized)
{
Prepare();
}
this._tokens.Clear();
this._errorLog = new ParserLogException();
this._errorRecovery = -1;
// Parse input
try {
root = ParseStart();
} catch (ParseException e) {
AddError(e, true);
}
// Check for errors
if (_errorLog.Count > 0)
{
throw _errorLog;
}
return(root);
}
private Node Analyze(Node node, ParserLogException log)
{
var errorCount = log.Count;
if (node is Production)
{
var prod = (Production)node;
prod = NewProduction(prod.Pattern);
try {
Enter(prod);
} catch (ParseException e) {
log.AddError(e);
}
for (int i = 0; i < node.Count; i++)
{
try {
Child(prod, Analyze(node[i], log));
} catch (ParseException e) {
log.AddError(e);
}
}
try {
return(Exit(prod));
} catch (ParseException e) {
if (errorCount == log.Count)
{
log.AddError(e);
}
}
}
else
{
node.Values.Clear();
try {
Enter(node);
} catch (ParseException e) {
log.AddError(e);
}
try {
return(Exit(node));
} catch (ParseException e) {
if (errorCount == log.Count)
{
log.AddError(e);
}
}
}
return(null);
}
public Node Analyze(Node node)
{
ParserLogException log = new ParserLogException();
node = Analyze(node, log);
if (log.Count > 0)
{
throw log;
}
return(node);
}