private void Matches(RegexGrammar g, string regex, string s)
{
var converter = new RegexConverter();
var c = converter.Convert(g.ParseExpression(regex));
var runner = PatternCompiler.Default.Compile(new Pattern()
{
Data = c
});
var result = runner.Run(s);
Assert.IsTrue(result.IsSuccessful && result.InputPosition >= s.Length, $"PEG from regex {regex} must match {s}. Matched {result.InputPosition} characters. Success: {result.IsSuccessful}");
}
private static int GetNumCaptures(string regex, string strData)
{
var data = strData.ToCharArray();
var g = new RegexGrammar(PatternCompiler.Default);
var converter = new RegexConverter();
var c = converter.Convert(g.ParseExpression(regex));
var matchPattern = new ZeroOrMore(new PrioritizedChoice(new CaptureGroup(0, c), new Any()));
var p = new Pattern(null)
{
Data = matchPattern
};
var runner = PatternCompiler.Default.Compile(p);
var captures = new List <Capture>();
var result = runner.Run(data, 0, data.Length, captures);
return(result.IsSuccessful ? captures.Count : -1);
}
static void Main(string[] args)
{
//{
// var jitter = new CustomJitter("Regex.dll");
// var rg = new RegexGrammar(new PatternCompiler(new Compiler(), new DefaultOptimizer(), jitter));
// jitter.Save();
// rg.ParseExpression("abc");
//}
var patternCompiler = new PatternCompiler(new Compiler(), null, new ILJitter());
var regexGrammar = new Lazy <RegexGrammar>(() => new RegexGrammar(patternCompiler));
var converter = new RegexConverter();
var helper = new PegHelper(patternCompiler);
helper.EnsureExpressionBuilt();
//CompileAndWritePatternToFile("PegExpression", helper.GetExpressionPattern());
//var input = "AAA AAAas ntAar ".ToCharArray();
var input = GenerateInputData(1 << 20);
//var pattern = new PointerImplementation();
//var patternStr = "([A-Za-z] 'awyer' [ \t] / [A-Za-z] 'inn' [ \t])";
//var patternStr = "([A-Za-z] 'x')";
//var patternStr = "([A-Za-z] 'awyer' [ \t] / [A-Za-z] 'inn' [ \t])";
//var patternStr = "'Tom' / 'Finn' / 'Sawyer' / 'Huckleberry'";
//var patternStr = "'Tom' / 'Sawyer' / 'Huckleberry' / 'Finn' ";
//var patternStr = "[ -z][ -z]([ -z][ -z]('Tom' / 'Sawyer' / 'Huckleberry' / 'Finn') / [ -z]('Tom' / 'Sawyer' / 'Huckleberry' / 'Finn') / ('Tom' / 'Sawyer' / 'Huckleberry' / 'Finn'))";
//var patternStr = "[ -z][ -z]([ -z][ -z]('T' / 'S') / [ -z]('T' / 'Sawye' / 'Huck') / 'Huckleberry')";
//var patternStr = "[ -z][ -z]([ -z][ -z]('Tom' / 'Sawyer' / 'Huckleberry' / 'Finn') / [ -z]('Tom' / 'Sawyer' / 'Huckleberry' / 'Finn') / ('Tom' / 'Sawyer' / 'Huckleberry' / 'Finn'))";
//var patternStr = "[ -z][ -z]([ -z][ -z]('T' / 'S' / 'H') / [ -z]('T' / 'S' / 'H') / ('T' / 'S'))";
//var patternStr = $"[ -{char.MaxValue}][ -z]([ -z][ -z]('T' / 'S') / [ -z]('T'))";
//var patternStr = ".. ('T' / 'SS' / 'HHH' / 'FFFF')";
//var patternStr = "('T' / 'SS' / 'HHH' / 'FFFF')";
//var patternStr = ".. ('TT' / 'FFF')";
//var patternStr = "'Twain'";
//var patternStr = "[a-z] 'shing'";
//var patternStr = "[a-z]+";
//var patternStr = "('Huck'[a-zA-Z]+) / ('Saw'[a-zA-Z]+)";
//var m = $"[{char.MinValue}-uz-{char.MaxValue}]";
//var patternStr = $"[a-q]{m}{m}{m}{m}{m}{m}{m}{m}{m}{m}{m}{m}{m} 'x'";
//var pattern = CompileAndWritePatternToFile("SimpleMatch", new Pattern("SimpleMatch") { Data = helper.ParseExpression("[a-z]*") });
//var p = converter.Convert(regexGrammar.Value.ParseExpression("Twain"));
//var p = converter.Convert(regexGrammar.Value.ParseExpression("river.{20,50}Tom|Tom.{20,50}river"));
//var p = converter.Convert(regexGrammar.Value.ParseExpression("river.{10,25}Tom|Tom.{10,25}river"));
//var a = new Pattern("A");
//a.Data = new PrioritizedChoice(new Sequence(letters, a), new Empty());
//var p = new Sequence(letters, a);
//var p = new Sequence(new PrioritizedChoice('T', 'R'), "om");//Operator.EndingWithGreedy(capitalsAndNonCapitals, CharacterClass.String("ing"));
//var ws = new Pattern { Data = new ZeroOrMore(new CharacterClass(' ')) };
//var p1 = new Pattern { Data = new Sequence(ws, CharacterClass.String("abc")) };
//var p2 = new Pattern { Data = new Sequence(ws, CharacterClass.String("xyz")) };
//var p = new PrioritizedChoice(p1, p2);
var p = new ZeroOrMore(new PrioritizedChoice(new CaptureGroup(0, converter.Convert(regexGrammar.Value.ParseExpression("([A-Za-z]awyer|[A-Za-z]inn)\\s"))), new Any()));
var s2 = new Stopwatch();
s2.Start();
var peg = new Pattern("SimpleMatch")
{
Data = p,
//Data = new ZeroOrMore(new PrioritizedChoice(new CaptureGroup(0, p), new Any()))
};
var pattern = CompileAndWritePatternToFile("SimpleMatch", peg);
Console.WriteLine($"Saved ({s2.ElapsedMilliseconds}ms)");
var text = "Tom..Huckleberry Finn Tom Tom Huck\nFinn,";
var capts = new List <Capture>();
var runResult = pattern.Run(text, capts);
if (runResult.IsSuccessful && runResult.InputPosition == text.Length)
{
Console.WriteLine($"Successful match on '{text}'");
}
//for (var n = 0; n < 10; n++)
//{
// for (var x = 0; x < 25; x++)
// {
// //var pegGrammar = new PegGrammar(new ILInterpreterFactory());
// //pegGrammar.EnsureExpressionBuilt();
// //var expression = pegGrammar.ParseExpression("'th' [a-z]+");
// //var compiler = (new ILCompilerFactory()).Create(new Pattern
// //{
// // Data = new ZeroOrMore(new PrioritizedChoice(new CaptureGroup(0, expression), new Any()))
// //});
// Stopwatch s = new Stopwatch();
// s.Start();
// var result = default(RunResult);
// var captures = new List<Capture>();
// for (var i = 0; i < 1000; i++)
// {
// captures = new List<Capture>();
// result = pattern.Run(input, 0, input.Length, captures);
// if (!result.IsSuccessful)
// {
// Console.WriteLine("Match fail");
// }
// }
// s.Stop();
// Console.WriteLine($"That took {s.ElapsedMilliseconds}ms ({captures.Count})");
// }
//}
Console.ReadKey();
}
