public DslParser.PatternContext Parse(string data)
{
DslParser.PatternContext pattern = null;
var errorListener = new AntlrMemoryErrorListener()
{
IsPattern = true
};
errorListener.FileName = "Pattern";
errorListener.FileData = data;
errorListener.Logger = Logger;
try
{
var inputStream = new AntlrInputStream(data);
DslLexer lexer = new DslLexer(inputStream);
lexer.RemoveErrorListeners();
lexer.AddErrorListener(errorListener);
var tokenStream = new CommonTokenStream(lexer);
DslParser parser = new DslParser(tokenStream);
parser.RemoveErrorListeners();
parser.AddErrorListener(errorListener);
pattern = parser.pattern();
}
catch (Exception ex)
{
Logger.LogError(new ParsingException("Pattern", ex)
{
IsPattern = true
});
throw;
}
return(pattern);
}
public DslParser.PatternContext Parse(string patternKey, string data)
{
DslParser.PatternContext pattern = null;
var sourceFile = new TextFile(data)
{
PatternKey = patternKey ?? data
};
var errorListener = new AntlrMemoryErrorListener()
{
IsPattern = true,
SourceFile = sourceFile,
Logger = Logger
};
try
{
var inputStream = new AntlrInputStream(data);
DslLexer lexer = new DslLexer(inputStream);
lexer.RemoveErrorListeners();
lexer.AddErrorListener(errorListener);
var tokenStream = new CommonTokenStream(lexer);
DslParser parser = new DslParser(tokenStream);
parser.RemoveErrorListeners();
parser.AddErrorListener(errorListener);
pattern = parser.pattern();
}
catch (Exception ex) when(!(ex is ThreadAbortException))
{
Logger.LogError(new ParsingException(sourceFile, ex));
throw;
}
return(pattern);
}
static void Main(string[] args)
{
string code = @"
when [ToPractice] is 'cardiology of bob'
*[Insurance] is 'blue cross' +[Insurance] is 'blah' +[Insurance] is 'blah3'
*[DocumentCount] greater than 1
*[DocumentCount] less than 3
when [ToPractice] is 'test'
*[DocumentCount] greater than 10
";
var lexer = new DslLexer(new ANTLRStringStream(code));
var tokens = new CommonTokenStream(lexer);
var parser = new DslParser(tokens);
parser.TreeAdaptor = new BridgeAdapter();
var result = parser.program();
//Generate .dot graph. View it at http://mdaines.github.io/viz.js/
var graphGenerator = new DotTreeGenerator();
var dotFile = graphGenerator.ToDot(result.Tree);
if (lexer.Errors.Count > 0)
{
foreach (var error in lexer.Errors)
{
Console.WriteLine(error);
}
return;
}
if (parser.Errors.Count > 0)
{
foreach (var error in parser.Errors)
{
Console.WriteLine(error);
}
return;
}
var bridge = new BridgeVisitor(result.Tree);
var ast = bridge.CreateAst();
var codeGen = new CodeGenVisitor(ast);
var codeUnit = codeGen.Generate();
//Code Gen;
string codeString = Persist.ToCSharpSource(codeUnit);
//Compile
var persist = new Persist(codeUnit);
var assembly = persist.ToAssembly();
if (persist.Errors.Count > 0)
{
foreach (var error in persist.Errors)
{
Console.WriteLine(error);
}
return;
}
//Run
var instance = assembly.CreateInstance("Code");
var method = assembly.GetType("Code").GetMethod("Run");
var methodArgs = new Args {
ToPractice = "test", Insurance = "blue cross", DocumentCount = 5
};
var codeResult = (bool)method.Invoke(instance, new[] { methodArgs });
Console.WriteLine(codeResult);
}
