void (@NotNull final XmlAttribute attribute, @NotNull final XmlAttributeValue value, final boolean soft) { final String id = XmlHighlightVisitor.getUnquotedValue(value, attribute.getParent()); if (XmlUtil.isSimpleValue(id, value) && PsiTreeUtil.getChildOfType(value, OuterLanguageElement.class) == null) { myHolder.registerId(id, value, soft); } }