void (RegExpPosixBracketExpression posixBracketExpression) { final String className = posixBracketExpression.getClassName(); if (!POSIX_CHARACTER_CLASSES.contains(className) && !"<".equals(className) && !">".equals(className)) { final ASTNode node = posixBracketExpression.getNode().findChildByType(RegExpTT.NAME); if (node != null) { myHolder.newAnnotation(HighlightSeverity.ERROR, RegExpBundle.message("error.unknown.posix.character.class")).range(node) .highlightType(ProblemHighlightType.LIKE_UNKNOWN_SYMBOL).create(); } } }