protected void init() {
    TextAttribute keyAttr = tokenAttribute(PreferenceConstants.COLOR_KEY, PreferenceConstants.BOLD_KEY,
            PreferenceConstants.ITALIC_KEY, PreferenceConstants.UNDERLINE_KEY);
    IToken keyToken = new YAMLToken(keyAttr, YAMLToken.KEY);

    TextAttribute pathKeyAttr = tokenAttribute(PreferenceConstants.COLOR_KEY, PreferenceConstants.BOLD_KEY,
            PreferenceConstants.ITALIC_KEY, PreferenceConstants.UNDERLINE_KEY);
    IToken pathKeyToken = new YAMLToken(pathKeyAttr, YAMLToken.KEY);

    TextAttribute scalarAttr = tokenAttribute(PreferenceConstants.COLOR_SCALAR, PreferenceConstants.BOLD_SCALAR,
            PreferenceConstants.ITALIC_SCALAR, PreferenceConstants.UNDERLINE_SCALAR);
    IToken scalarToken = new YAMLToken(scalarAttr, YAMLToken.SCALAR);

    TextAttribute commentAttr = tokenAttribute(PreferenceConstants.COLOR_COMMENT, PreferenceConstants.BOLD_COMMENT,
            PreferenceConstants.ITALIC_COMMENT, PreferenceConstants.UNDERLINE_COMMENT);
    IToken commentToken = new YAMLToken(commentAttr, YAMLToken.COMMENT);

    TextAttribute documentAttr = tokenAttribute(PreferenceConstants.COLOR_DOCUMENT,
            PreferenceConstants.BOLD_DOCUMENT, PreferenceConstants.ITALIC_DOCUMENT,
            PreferenceConstants.UNDERLINE_DOCUMENT);

    IToken documentStartToken = new YAMLToken(documentAttr, YAMLToken.DOCUMENT_START);
    IToken documentEndToken = new YAMLToken(documentAttr, YAMLToken.DOCUMENT_END);

    TextAttribute anchorAttr = tokenAttribute(PreferenceConstants.COLOR_ANCHOR, PreferenceConstants.BOLD_ANCHOR,
            PreferenceConstants.ITALIC_ANCHOR, PreferenceConstants.UNDERLINE_ANCHOR);
    IToken anchorToken = new YAMLToken(anchorAttr, YAMLToken.ANCHOR);

    TextAttribute aliasAttr = tokenAttribute(PreferenceConstants.COLOR_ALIAS, PreferenceConstants.BOLD_ALIAS,
            PreferenceConstants.ITALIC_ALIAS, PreferenceConstants.UNDERLINE_ALIAS);
    IToken aliasToken = new YAMLToken(aliasAttr, YAMLToken.ALIAS);

    IToken indicatorCharToken = new YAMLToken(new TextAttribute(null), YAMLToken.INDICATOR_CHARACTER);

    TextAttribute tagAttr = tokenAttribute(PreferenceConstants.COLOR_TAG_PROPERTY,
            PreferenceConstants.BOLD_TAG_PROPERTY, PreferenceConstants.ITALIC_TAG_PROPERTY,
            PreferenceConstants.UNDERLINE_TAG_PROPERTY);
    IToken tagPropToken = new YAMLToken(tagAttr, YAMLToken.TAG_PROPERTY);

    TextAttribute constantAttr = tokenAttribute(PreferenceConstants.COLOR_CONSTANT,
            PreferenceConstants.BOLD_CONSTANT, PreferenceConstants.ITALIC_CONSTANT,
            PreferenceConstants.UNDERLINE_CONSTANT);
    IToken predefinedValToken = new YAMLToken(constantAttr, YAMLToken.CONSTANT);

    IToken whitespaceToken = new YAMLToken(new TextAttribute(null), YAMLToken.WHITESPACE);

    IToken directiveToken = new YAMLToken(new TextAttribute(null), YAMLToken.DIRECTIVE);

    ArrayList<IRule> rules = new ArrayList<IRule>();

    rules.add(new KeyRule(keyToken));
    rules.add(new SingleQuotedKeyRule(keyToken));
    rules.add(new DoubleQuotedKeyRule(keyToken));
    rules.add(new PathRule(pathKeyToken));
    rules.add(new MultiLineRule("\"", "\"", scalarToken, '\\'));
    rules.add(new MultiLineRule("'", "'", scalarToken));
    rules.add(new EndOfLineRule("#", commentToken));
    rules.add(new EndOfLineRule("%TAG", directiveToken));
    rules.add(new EndOfLineRule("%YAML", directiveToken));
    rules.add(new DocumentStartAndEndRule("---", documentStartToken));
    rules.add(new DocumentStartAndEndRule("...", documentEndToken));
    rules.add(new IndicatorCharacterRule(indicatorCharToken));
    rules.add(new WhitespaceRule(whitespaceToken));
    rules.add(new WordPatternRule(new AnchorWordDetector(), "&", "", anchorToken));
    rules.add(new WordPatternRule(new AnchorWordDetector(), "*", "", aliasToken));
    rules.add(new WordPatternRule(new TagWordDetector(), "!", "", tagPropToken));

    rules.add(new PredefinedValueRule(predefinedValToken));

    rules.add(new ScalarRule(scalarToken));

    IRule[] rulesArray = new IRule[rules.size()];
    rules.toArray(rulesArray);
    setRules(rulesArray);
    setDefaultReturnToken(scalarToken);

}