public void TestDisplayAST()
{
string expression = "A -> [10] B until C -> D";
Log.Debug(".testDisplayAST parsing: " + expression);
Pair <ITree, CommonTokenStream> ast = Parse(expression);
SupportParserHelper.DisplayAST(ast.First);
}
private void AssertIsValid(string text)
{
Log.Debug(".assertIsValid Trying text=" + text);
var ast = Parse(text);
Log.Debug(".assertIsValid success, tree walking...");
SupportParserHelper.DisplayAST(ast.First);
Log.Debug(".assertIsValid done");
}
public void TestParserNodeGeneration()
{
string expression = "a(m=1) -> not b() or every c() and d() where a:b (5) and timer:interval(10)";
Log.Debug(".testParserNodeGeneration parsing: " + expression);
Pair <ITree, CommonTokenStream> parsed = Parse(expression);
ITree ast = parsed.First;
SupportParserHelper.DisplayAST(ast);
}
private void AssertEquivalent(
string expressionOne,
string expressionTwo)
{
EPLTreeWalkerListener l1 = SupportParserHelper.ParseAndWalkEPL(container, "select * from pattern[" + expressionOne + "]");
EPLTreeWalkerListener l2 = SupportParserHelper.ParseAndWalkEPL(container, "select * from pattern[" + expressionTwo + "]");
string t1 = ToPatternText(l1);
string t2 = ToPatternText(l2);
Assert.AreEqual(t1, t2);
}
public static EPLTreeWalkerListener ParseAndWalkEPL(
IContainer container,
string expression)
{
Log.Debug(".parseAndWalk Trying text=" + expression);
var ast = ParseEPL(expression);
Log.Debug(".parseAndWalk success, tree walking...");
SupportParserHelper.DisplayAST(ast.First);
var listener = SupportEPLTreeWalkerFactory.MakeWalker(ast.Second, SupportClasspathImport.GetInstance(container));
var walker = new ParseTreeWalker(); // create standard walker
walker.Walk(listener, (IParseTree)ast.First); // initiate walk of tree with listener
return(listener);
}
public void TestDisplayAST()
{
var expression = "select * from A where exp > ANY (select a from B)";
Log.Debug(".testDisplayAST parsing: " + expression);
var ast = Parse(expression);
SupportParserHelper.DisplayAST(ast.First);
Log.Debug(".testDisplayAST walking...");
var listener = SupportEPLTreeWalkerFactory.MakeWalker(container, ast.Second);
var walker = new ParseTreeWalker(); // create standard walker
walker.Walk(listener, (IParseTree)ast.First); // initiate walk of tree with listener
}
private Pair <ITree, CommonTokenStream> ParseJson(string expression)
{
return(SupportParserHelper.ParseJson(expression));
}
private Pair <ITree, CommonTokenStream> Parse(string expression)
{
return(SupportParserHelper.ParseEPL("select * from pattern[" + expression + "]"));
}