public Expression ParseExpression(string expressionCode, string sourceName = null)
{
if (expressionCode == null)
{
throw new ArgumentNullException(nameof(expressionCode));
}
Internal.DssLexer lexer;
using (var stream = new MemoryStream(Encoding.UTF8.GetBytes(expressionCode)))
lexer = new Internal.DssLexer(new AntlrInputStream(stream));
var tokens = new CommonTokenStream(lexer);
var parser = new Internal.DssParser(tokens);
var errorListener = new ErrorListener(sourceName);
parser.AddErrorListener(errorListener);
var visitor = new Visitors.ExpressionVisitor(null);
var expression = visitor.Visit(parser.expression());
return(expression);
}
public void ParseInto(DssInstructions dssInstructions, SourceCodeInfo sourceInfo)
{
if (sourceInfo == null)
{
throw new ArgumentNullException(nameof(sourceInfo));
}
Internal.DssLexer lexer;
using (var stream = sourceInfo.GetStream())
lexer = new Internal.DssLexer(new AntlrInputStream(stream));
var tokens = new CommonTokenStream(lexer);
var parser = new Internal.DssParser(tokens);
var errorListener = new ErrorListener(sourceInfo.SourceName);
//parser.RemoveErrorListeners();
parser.AddErrorListener(errorListener);
var listener = new StylesheetListener(sourceInfo.SourceName, dssInstructions);
listener.EnterStylesheet(parser.stylesheet());
}
