private static ParseTree Parse(string input, bool allowPartial)
{
ParseTree parseTree = null;
IronyParser.Context.Mode = allowPartial ? ParseMode.CommandLine : ParseMode.File;
try
{
parseTree = IronyParser.Parse(input);
}
catch (Exception)
{
var msg = "The parser internally crashed and gets reinitialized." + Environment.NewLine +
"Although this shouldn't happen, it's likely that it happened because of invalid syntax.";
IronyParser = new IronyParser(Grammar);
throw new ParseException(msg);
}
if (parseTree.HasErrors()) // ParseTreeStatus is Error
{
var logMessage = parseTree.ParserMessages.First();
throw new ParseException(logMessage.Message, logMessage.Location.Line, logMessage.Location.Column,
parseTree.SourceText);
}
return(parseTree);
}
private void ReParse(ITextSnapshot newSnapshot, Irony.Parsing.ParseTree tree)
{
int previousCount = errorTokens.Count;
errorTokens.Clear();
var newErrors = new List <Irony.Parsing.Token>();
foreach (var token in tree.Tokens)
{
if (token.IsError())
{
errorTokens.Add(token);
}
}
if (tree.HasErrors())
{
var tok = tree.Tokens.Last();
errorTokens.Add(tok);
//if (tok.Length != 0)
// errorTokens.Add(tok);
//else //it is EOF error so before the end(use -2)
// errorTokens.Add(tree.Tokens[tree.Tokens.Count - 2]);
msgParse = tree.ParserMessages[0].ToString();
}
else
{
msgParse = "";
}
if (previousCount != 0 || errorTokens.Count != 0)
{
if (this.TagsChanged != null)
{
this.TagsChanged(this, new SnapshotSpanEventArgs(
new SnapshotSpan(newSnapshot, 0, newSnapshot.Length)));
}
}
}