/// <summary>
/// Preforms an auto-complete parse on the specified stream of LSL source code, up to an arbitrary offset.
/// </summary>
/// <param name="code">The input source code.</param>
/// <param name="toOffset">To offset to parse up to (the cursor offset).</param>
/// <param name="options">Parse options.</param>
/// <exception cref="ArgumentOutOfRangeException">if <paramref name="toOffset" /> is not greater than zero.</exception>
/// <exception cref="ArgumentNullException"><paramref name="code" /> is <c>null</c>.</exception>
public override void Parse(string code, int toOffset, LSLAutoCompleteParseOptions options)
{
if (code == null)
{
throw new ArgumentNullException("code");
}
if (toOffset < 0)
{
throw new ArgumentOutOfRangeException("toOffset", "toOffset cannot be less than zero.");
}
var detectInStringOrComment = new LSLCommentAndStringDetector(code, toOffset);
var visitor = new LSLAutoCompleteVisitor(toOffset);
ParserState = visitor;
var behind = LookBehindOffset(code, toOffset, 1, 1);
if ((options & LSLAutoCompleteParseOptions.BlockOnInvalidPrefix) == LSLAutoCompleteParseOptions.BlockOnInvalidPrefix)
{
if (!IsValidSuggestionPrefix(behind))
{
visitor.InvalidPrefix = true;
return;
}
}
if ((options & LSLAutoCompleteParseOptions.BlockOnInvalidKeywordPrefix) ==
LSLAutoCompleteParseOptions.BlockOnInvalidKeywordPrefix)
{
if (KeywordPriorBlocksCompletion(code, toOffset))
{
visitor.InvalidKeywordPrefix = true;
return;
}
}
if (detectInStringOrComment.InComment || detectInStringOrComment.InString)
{
visitor.InString = detectInStringOrComment.InString;
visitor.InComment = detectInStringOrComment.InComment;
visitor.InLineComment = detectInStringOrComment.InLineComment;
visitor.InBlockComment = detectInStringOrComment.InBlockComment;
return;
}
var inputStream = new AntlrInputStream(new StringReader(code), toOffset);
var lexer = new LSLLexer(inputStream);
var tokenStream = new CommonTokenStream(lexer);
var parser = new LSLParser(tokenStream);
parser.RemoveErrorListeners();
lexer.RemoveErrorListeners();
visitor.Parse(parser.compilationUnit());
}
/// <summary> /// Preforms an auto-complete parse on the specified stream of LSL source code, up to an arbitrary offset. /// </summary> /// <param name="code">The input source code.</param> /// <param name="toOffset">To offset to parse up to (the cursor offset).</param> /// <param name="options">Parse options.</param> public abstract void Parse(string code, int toOffset, LSLAutoCompleteParseOptions options);
