public void Parse(ParserDetails pd)
{
string ffn = pd.FullFileName;
string code = pd.Code;
IParseTree pt = null;
// Set up Antlr to parse input grammar.
byte[] byteArray = Encoding.UTF8.GetBytes(code);
var ais = new AntlrInputStream(
new StreamReader(
new MemoryStream(byteArray)).ReadToEnd());
ais.name = ffn;
CommonTokenStream cts = new CommonTokenStream(new Java9Lexer(ais));
var parser = new Java9Parser(cts);
try
{
pt = parser.compilationUnit();
}
catch (Exception)
{
// Parsing error.
}
//StringBuilder sb = new StringBuilder();
//TreeSerializer.ParenthesizedAST(pt, sb, "", cts);
//string fn = System.IO.Path.GetFileName(ffn);
//fn = "c:\\temp\\" + fn;
//System.IO.File.WriteAllText(fn, sb.ToString());
pd.ParseTree = pt;
}
static void Main(string[] args)
{
int i = 0;
bool build_tree = true;
for (; i < args.Length; ++i)
{
switch (args[i])
{
case "-notree":
build_tree = false;
break;
}
}
var input = File.OpenText(args[i - 1]);
var str = new AntlrInputStream(input);
var lexer = new Java9Lexer(str);
var tokens = new CommonTokenStream(lexer);
var parser = new Java9Parser(tokens);
parser.Lexer = lexer;
lexer.Parser = parser;
var listener = new ErrorListener <IToken>(parser, lexer, tokens);
parser.AddErrorListener(listener);
parser.BuildParseTree = build_tree;
var start = DateTime.Now;
var tree = parser.compilationUnit();
if (listener.had_error)
{
System.Console.WriteLine("error in parse.");
}
else
{
System.Console.WriteLine("parse completed.");
}
var end = DateTime.Now;
System.Console.WriteLine(tokens.OutputTokens());
if (tree != null)
{
System.Console.WriteLine(tree.OutputTree(tokens));
}
System.Console.WriteLine(end - start);
}
static void Main(string[] args)
{
bool build_tree = false;
bool show_tree = false;
bool group = true;
for (int i = 0; i < args.Length; ++i)
{
switch (args[i])
{
case "-notree":
build_tree = false;
break;
case "-showtree":
show_tree = true;
break;
case "-group":
group = true;
break;
}
}
if (group)
{
var str = new AntlrInputStream("");
var lexer = new Java9Lexer(str);
var tokens = new CommonTokenStream(lexer);
var parser = new Java9Parser(tokens);
var listener = new ErrorListener <IToken>(parser, lexer, tokens);
parser.AddErrorListener(listener);
parser.BuildParseTree = build_tree;
for (int i = 0; i < args.Length; ++i)
{
if (args[i].StartsWith('-'))
{
continue;
}
var input = File.ReadAllText(args[i]);
str = new AntlrInputStream(input);
// lexer.Reset();
parser.Reset();
lexer.SetInputStream(str);
tokens.SetTokenSource(lexer);
parser.TokenStream = tokens;
var start = DateTime.Now;
var tree = parser.compilationUnit();
if (listener.had_error)
{
System.Console.WriteLine("error in parse.");
}
else
{
System.Console.WriteLine("parse completed.");
}
var end = DateTime.Now;
// System.Console.WriteLine(tokens.OutputTokens());
if (show_tree && tree != null)
{
System.Console.WriteLine(tree.OutputTree(tokens));
}
System.Console.WriteLine(end - start);
}
}
else
{
for (int i = 0; i < args.Length; ++i)
{
if (args[i].StartsWith('-'))
{
continue;
}
var input = File.OpenText(args[i]);
var str = new AntlrInputStream(input);
var lexer = new Java9Lexer(str);
var tokens = new CommonTokenStream(lexer);
var parser = new Java9Parser(tokens);
var listener = new ErrorListener <IToken>(parser, lexer, tokens);
parser.AddErrorListener(listener);
parser.BuildParseTree = build_tree;
var start = DateTime.Now;
var tree = parser.compilationUnit();
if (listener.had_error)
{
System.Console.WriteLine("error in parse.");
}
else
{
System.Console.WriteLine("parse completed.");
}
var end = DateTime.Now;
// System.Console.WriteLine(tokens.OutputTokens());
if (show_tree && tree != null)
{
System.Console.WriteLine(tree.OutputTree(tokens));
}
System.Console.WriteLine(end - start);
}
}
}
public static void Main(String[] args)
{
bool print_tree = false;
bool perf = false;
bool print_tokens = false;
int file_index = 0;
if (args.Length == 0)
{
System.Console.WriteLine("Antlr Java parser.");
return;
}
else
{
for (int i = 0; i < args.Length; ++i)
{
if (args[i] == "-t")
{
print_tree = true;
}
else if (args[i] == "-p")
{
perf = true;
}
else if (args[i] == "-i")
{
print_tokens = true;
}
else
{
file_index = i;
}
}
}
int exceptions = 0;
var errorListener = new ErrorListener <IToken>();
IParseTree tree = null;
CommonTokenStream tokens = null;
var start = DateTime.Now;
try
{
var input = File.OpenText(args[file_index]);
var str = new AntlrInputStream(input);
var lexer = new Java9Lexer(str);
tokens = new CommonTokenStream(lexer);
var parser = new Java9Parser(tokens);
parser.RemoveErrorListeners();
parser.AddErrorListener(errorListener);
tree = parser.compilationUnit();
}
catch (Exception e)
{
exceptions++;
}
System.Console.WriteLine("errors " + errorListener.num_errors + " exceptions " + exceptions);
var end = DateTime.Now;
if (perf)
{
System.Console.WriteLine(end - start);
}
if (print_tokens && tokens != null)
{
foreach (var token in tokens.GetTokens())
{
System.Console.WriteLine("Token " + token.TokenIndex + " " + token.Type + " " + Output.PerformEscapes(token.Text));
}
}
if (print_tree && tree != null)
{
System.Console.WriteLine(tree.OutputTree(tokens));
}
}