private void LoadState(int state, MetaDslx.Languages.Soal.Syntax.InternalSyntax.SoalLexer lexer)
{
LanguageScannerState value = default(LanguageScannerState);
this.states.TryGetValue(state, out value);
value.Restore(lexer);
}
public LanguageScannerState(MetaDslx.Languages.Soal.Syntax.InternalSyntax.SoalLexer lexer)
{
this._mode = lexer.CurrentMode;
this._modeStack = lexer.ModeStack.Count > 0 ? new List <int>(lexer.ModeStack) : null;
this._type = lexer.Type;
this._channel = lexer.Channel;
this._state = lexer.State;
}
public void SetSource(string source, int offset)
{
//if (this.currentOffset != offset || this.currentLine != source)
{
this.currentOffset = offset;
this.currentLine = source;
this.lexer = null;
}
}
private int SaveState(MetaDslx.Languages.Soal.Syntax.InternalSyntax.SoalLexer lexer)
{
int result = 0;
LanguageScannerState state = new LanguageScannerState(lexer);
if (!this.inverseStates.TryGetValue(state, out result))
{
result = ++lastState;
this.states.Add(result, state);
this.inverseStates.Add(state, result);
}
return(result);
}
public void Restore(MetaDslx.Languages.Soal.Syntax.InternalSyntax.SoalLexer lexer)
{
lexer.CurrentMode = this._mode;
lexer.ModeStack.Clear();
if (this._modeStack != null)
{
foreach (var item in this._modeStack)
{
lexer.ModeStack.Push(item);
}
}
lexer.Type = this._type;
lexer.Channel = this._channel;
lexer.State = this._state;
}
public bool ScanTokenAndProvideInfoAboutIt(TokenInfo tokenInfo, ref int state)
{
try
{
if (this.lexer == null)
{
this.lexer = new MetaDslx.Languages.Soal.Syntax.InternalSyntax.SoalLexer(new AntlrInputStream(this.currentLine + "\r\n"));
}
this.LoadState(state, this.lexer);
IToken token = this.lexer.NextToken();
int tokenType = (int)this.syntaxFacts.GetTokenKind(token.Type);
if (tokenType == 0)
{
tokenType = (int)this.syntaxFacts.GetModeTokenKind(this.lexer.CurrentMode);
}
if (tokenType >= 0 && tokenType < SoalLanguageConfig.Instance.ColorableItems.Count)
{
SoalLanguageColorableItem colorItem = SoalLanguageConfig.Instance.ColorableItems[tokenType];
tokenInfo.Token = token.Type;
tokenInfo.Type = colorItem.TokenType;
tokenInfo.Color = (TokenColor)tokenType;
tokenInfo.Trigger = TokenTriggers.None;
}
else
{
tokenInfo.Token = token.Type;
tokenInfo.Type = TokenType.Text;
tokenInfo.Color = TokenColor.Text;
tokenInfo.Trigger = TokenTriggers.None;
}
if (string.IsNullOrEmpty(token.Text) || this.currentOffset >= this.currentLine.Length)
{
return(false);
}
tokenInfo.StartIndex = this.currentOffset;
this.currentOffset += token.Text.Length;
tokenInfo.EndIndex = this.currentOffset - 1;
state = this.SaveState(lexer);
return(true);
}
catch (Exception)
{
return(false);
}
}
