<table border="1" cellspacing="0" cellpadding="8">
    <tr>
        <th>Issue</th>
        <td>
            <a href=https://github.com/llvm/llvm-project/issues/88376>88376</a>
        </td>
    </tr>

    <tr>
        <th>Summary</th>
        <td>
            [clang-format] feature request: comma prefix for container items
        </td>
    </tr>

    <tr>
      <th>Labels</th>
      <td>
            clang-format
      </td>
    </tr>

    <tr>
      <th>Assignees</th>
      <td>
      </td>
    </tr>

    <tr>
      <th>Reporter</th>
      <td>
          ASaltedFishBoy
      </td>
    </tr>
</table>

<pre>
    In containers of hundreds of lines of unequal length char* , missing a comma suffix for an item would cause an imperceptible error, so I wanted to have a comma prefix feature, at least for container lists.
what I want is(The code block will be formatted and won't represent what I want)
{
 "AA"
    ,"AAAA"
     "BBBBB"
    ,"AABB"
 ,"AABBB"
}

</pre>
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