static void PrintLispTree(DialogicParser parser, ParserRuleContext prc)
{
string tree = prc.ToStringTree(parser);
int indentation = 1;
Console.WriteLine("\nPARSE-TREE");
foreach (char c in tree)
{
if (c == '(')
{
if (indentation > 1)
{
Console.WriteLine();
}
for (int i = 0; i < indentation; i++)
{
Console.Write(" ");
}
indentation++;
}
else if (c == ')')
{
indentation--;
}
Console.Write(c);
}
Console.WriteLine("\n");
}
public void Test()
{
string source = "split.gs";
ITokenSource lexer = new DialogicLexer(new AntlrInputStream(source));
CommonTokenStream tokens = new CommonTokenStream(lexer);
DialogicParser parser = new DialogicParser(tokens);
ParserRuleContext context = parser.script();
Visit(context);
String tree = context.ToStringTree(parser);
printPrettyLispTree(tree);
}
private void Parse(Assembly assembly, string filePath, string startRule)
{
string fileString = File.ReadAllText(filePath);
var inputStream = new AntlrInputStream(fileString);
var lexer = this.GetLexer(assembly, inputStream);
var tokenStream = new CommonTokenStream(lexer);
tokenStream.Fill();
if (this.ShowTokens)
{
foreach (var token in tokenStream.GetTokens())
{
if (token is CommonToken)
{
Console.WriteLine(this.TokenToString(token, lexer));
}
else
{
Console.WriteLine(token.ToString());
}
}
}
var parser = this.GetParser(assembly, tokenStream);
parser.BuildParseTree = true;
ParserRuleContext tree = this.RunRule(parser, startRule);
MainWindow.Tree = tree;
MainWindow.Parser = parser;
MainWindow.Lexer = lexer;
MainWindow.LexerSymbolicNames = this.tokenSymbolicNames;
if (this.ShowTree)
{
Console.WriteLine(tree.ToStringTree(parser));
}
}
private static void PrintDebugInfo(Lexer lexer)
{
CommonTokenStream tokens = new CommonTokenStream(lexer);
tokens.Fill();
Console.WriteLine("\n[TOKENS]");
foreach (var t in tokens.GetTokens())
{
String symbolicName = lexer.Vocabulary.GetSymbolicName(t.Type);
String literalName = lexer.Vocabulary.GetLiteralName(t.Type);
Console.WriteLine(" {0:-20} {1}", symbolicName == "" ? literalName : symbolicName,
t.Text.Replace("\r", "\\r").Replace("\n", "\\n").Replace("\t", "\\t"));
}
Console.WriteLine("\n[PARSE-TREE]");
var parser = new SRZParser(tokens);
ParserRuleContext context = parser.expression();
String tree = context.ToStringTree(parser);
printPrettyLispTree(tree);
}
/// <exception cref="System.IO.IOException"/>
/// <exception cref="System.MemberAccessException"/>
/// <exception cref="System.Reflection.TargetInvocationException"/>
/// <exception cref="Javax.Print.PrintException"/>
protected internal virtual void Process <_T0>(Lexer lexer, Type <_T0> parserClass, Parser parser, Stream @is, TextReader r)
where _T0 : Parser
{
try
{
AntlrInputStream input = new AntlrInputStream(r);
lexer.SetInputStream(input);
CommonTokenStream tokens = new CommonTokenStream(lexer);
tokens.Fill();
if (showTokens)
{
foreach (object tok in tokens.GetTokens())
{
System.Console.Out.WriteLine(tok);
}
}
if (startRuleName.Equals(LexerStartRuleName))
{
return;
}
if (diagnostics)
{
parser.AddErrorListener(new DiagnosticErrorListener());
parser.Interpreter.PredictionMode = PredictionMode.LlExactAmbigDetection;
}
if (printTree || gui || psFile != null)
{
parser.BuildParseTree = true;
}
if (Sll)
{
// overrides diagnostics
parser.Interpreter.PredictionMode = PredictionMode.Sll;
}
parser.SetInputStream(tokens);
parser.Trace = trace;
try
{
MethodInfo startRule = parserClass.GetMethod(startRuleName, (Type[])null);
ParserRuleContext tree = (ParserRuleContext)startRule.Invoke(parser, (object[])null);
if (printTree)
{
System.Console.Out.WriteLine(tree.ToStringTree(parser));
}
if (gui)
{
tree.Inspect(parser);
}
if (psFile != null)
{
tree.Save(parser, psFile);
}
}
catch (NoSuchMethodException)
{
// Generate postscript
System.Console.Error.WriteLine("No method for rule " + startRuleName + " or it has arguments");
}
}
finally
{
if (r != null)
{
r.Close();
}
if (@is != null)
{
@is.Close();
}
}
}
public override void ExitEveryRule([NotNull] ParserRuleContext context)
{
if (this.writer != default)
{
writer($"{System.Reflection.MethodBase.GetCurrentMethod().Name} | {context.GetText()} | {context.ToStringTree(parser)}");
}
base.ExitEveryRule(context);
}
public void EnterEveryRule(ParserRuleContext ctx)
{
this.output(this.Ident + "R: -> " + ctx.ToStringTree(this.parser));
this.idents.Push(" ");
}
public override string ToString()
{
return(_result.ToStringTree(_parser));
}
private int parseQuery(string query)
{
var t = string.Empty;
IMySQLRecognizerCommon mySQLRecognizerCommon = new MySQLRecognizerCommon(serverVersion, sqlMode);
var lastErrors = new StringBuilder();
var errorListener = new TestErrorListener(lastErrors);
var errorStrategy = new BailErrorStrategy();
var input = new AntlrInputStream(query);
var lexer = new MySQLLexer(input, mySQLRecognizerCommon);
lexer.RemoveErrorListeners();
lexer.AddErrorListener(errorListener);
lexer.serverVersion = serverVersion;
lexer.sqlMode = sqlMode;
lexer.charsets = charsets;
var tokens = new CommonTokenStream(lexer);
var parser = new MySQLParser(tokens, mySQLRecognizerCommon);
parser.serverVersion = serverVersion;
parser.sqlMode = sqlMode;
parser.BuildParseTree = buildParserTree;
parser.ErrorHandler = errorStrategy;
parser.Interpreter.PredictionMode = PredictionMode.SLL;
parser.RemoveParseListeners();
tokens.Fill();
ParserRuleContext tree = default;
try
{
tree = parser.query();
}
catch (Antlr4.Runtime.Misc.ParseCanceledException)
{
// If parsing was cancelled we either really have a syntax error or we need to do a second step,
// now with the default strategy and LL parsing.
tokens.Reset();
parser.Reset();
parser.ErrorHandler = new DefaultErrorStrategy();
parser.Interpreter.PredictionMode = PredictionMode.LL;
parser.AddErrorListener(errorListener);
tree = parser.query();
}
var toks = tokens.GetTokens();
t = input.GetText(new Antlr4.Runtime.Misc.Interval(toks[0].StartIndex, int.MaxValue));
if (dump && buildParserTree)
{
if (tree == null)
{
Trace.TraceInformation(@"No parse tree available");
}
else
{
t = tree.GetText();
parseTreeView = tree.ToStringTree(parser);
var text = $"Token count: {tokens.Size}{Environment.NewLine}{MySQLRecognizerCommon.dumpTree(tree, parser.Vocabulary)}";
Trace.TraceInformation(text.Trim());
}
}
return(parser.NumberOfSyntaxErrors);
}
