<table border="1" cellspacing="0" cellpadding="8">
    <tr>
        <th>Issue</th>
        <td>
            <a href=https://github.com/llvm/llvm-project/issues/97892>97892</a>
        </td>
    </tr>

    <tr>
        <th>Summary</th>
        <td>
            [clang-format] BasedOnStyle: dummy
        </td>
    </tr>

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

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

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

<pre>
    Hey

Is it possible to create dummy style, which will ignore all what is not configured?
I want to use clang-format in already big not formatted repository, but some of it code-style rules can't be represented in clang-format options.

One of example is namespace braces formatting. We always break before braces. But we also use compact record for several sequenced namespaces (we use C++14). See example.
Our code style is
```cpp
namespace foo
{
```
```cpp
namespace foo { namespace boo
{
```
But clang-format can only
```cpp
namespace foo
{
namespace boo
{
```
or
```cpp
namespace foo { namespace boo {
```

This isn't the one such example that's why for us is much easier to ignore this then change code-style.

So, I think better have 90% of  auto formatted rules then 0.

I'm ready to contribute to add this feature if it is possible to add it in current clang-format implementation at all
</pre>
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