@Override
  public boolean addInjectionInPlace(Language language, final PsiLanguageInjectionHost psiElement) {
    if (!isMine(psiElement)) return false;
    String id = language.getID();
    if (psiElement instanceof XmlAttributeValue) {
      return doInjectInAttributeValue((XmlAttributeValue)psiElement, id);
    }
    else if (psiElement instanceof XmlText) {
      return doInjectInXmlText((XmlText)psiElement, id);
    }
    return false;
  }
@Override
  public boolean addInjectionInPlace(Language language, final PsiLanguageInjectionHost psiElement)