private static TextRange getCommentRange(@NotNull PsiElement comment, @NotNull String text) {
    Language language = comment.getLanguage();
    Commenter commenter = LanguageCommenters.INSTANCE.forLanguage(language);
    if (commenter == null) {
      return null;
    }
    for (String prefix : commenter.getLineCommentPrefixes()) {
      if (StringUtil.startsWith(text, prefix)) {
        return new TextRange(prefix.length(), text.length());
      }
    }
    String blockCommentPrefix = commenter.getBlockCommentPrefix();
    if (blockCommentPrefix != null && StringUtil.startsWith(text, blockCommentPrefix)) {
      String suffix = commenter.getBlockCommentSuffix();
      int endOffset = text.length() - (suffix != null && StringUtil.endsWith(text, blockCommentPrefix.length(), text.length(), suffix) ? suffix.length() : 0);
      return new TextRange(blockCommentPrefix.length(), endOffset);
    }
    return null;
  }
private static TextRange getCommentRange(@NotNull PsiElement comment, @NotNull String text)