public Node ParseQLSSheet(string qlsSheetText)
{
QLSParser parser = SetupParser(qlsSheetText);
var visitor = new ParseTreeVisitor();
return(visitor.Visit(parser.stylesheet()));
}
public StylesheetTask Process(StylesheetTask input)
{
QLSParser parser = SetupParser(input.StylesheetText);
var visitor = new ParseTreeVisitor();
input.Ast = visitor.Visit(parser.stylesheet());
return(input);
}
private QLSParser CreateParser(string input)
{
var inputStream = new AntlrInputStream(input);
var lexer = new QLSLexer(inputStream);
var tokens = new CommonTokenStream(lexer);
var parser = new QLSParser(tokens);
AddErrorListener(parser);
return(parser);
}
public StyleSheet ParseQLSStream(TextReader reader)
{
if (reader == null) { throw new ArgumentNullException("reader"); }
var inputStream = new AntlrInputStream(reader);
var lexer = new QLSLexer(inputStream);
var tokens = new CommonTokenStream(lexer);
var parser = new QLSParser(tokens);
var visitor = new StyleSheetBuilder();
return visitor.Visit(parser.stylesheet());
}
private void ParseFile(string inputFile)
{
var fileContent = File.ReadAllText(inputFile);
try
{
var astForm = QLParser.ParseString(fileContent);
var messages = ValidateForm(astForm);
if (AnyErrors(messages))
{
_view.SetErrors(messages.Errors);
return;
}
_executor = new QLExecutor(astForm);
var qlsFileLocation = inputFile + ".qls";
IQuestionFormRenderer renderer = new QLRenderer(_executor);
if (File.Exists(qlsFileLocation))
{
var styleSheet = QLSParser.ParseString(File.ReadAllText(qlsFileLocation));
messages.Add(ValidateStyleSheet(styleSheet, astForm));
if (AnyErrors(messages))
{
_view.SetErrors(messages.Errors);
return;
}
renderer = new QLSRenderer(_executor, styleSheet);
}
_view.SetFormControl(renderer.Render());
_view.SetWarnings(messages.Warnings);
}
catch (QLParseException exception)
{
_view.SetErrors(exception.Exceptions);
}
}
private void AddErrorListener(QLSParser parser)
{
parser.RemoveErrorListeners();
parser.AddErrorListener(new AntlrErrorListener(Messages));
}
