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List:       llvm-bugs
Subject:    [llvm-bugs] [Bug 92948] [BUG][clang-tidy] `SyntaxWarning`: invalid escape sequence
From:       LLVM Bugs via llvm-bugs <llvm-bugs () lists ! llvm ! org>
Date:       2024-05-21 18:25:07
Message-ID: 20240521182507.7820ff507bf7cf9d () email ! llvm ! org
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<table border="1" cellspacing="0" cellpadding="8">
    <tr>
        <th>Issue</th>
        <td>
            <a href=https://github.com/llvm/llvm-project/issues/92948>92948</a>
        </td>
    </tr>

    <tr>
        <th>Summary</th>
        <td>
            [BUG][clang-tidy] `SyntaxWarning`: invalid escape sequence
        </td>
    </tr>

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

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

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

<pre>
    ```sh
clang-tidy-diff.py:245: SyntaxWarning: invalid escape sequence &apos;\+&apos;
  match = re.search(&apos;^\+\+\+\ &quot;?(.*?/){%s}([^ \t\n&quot;]*)&apos; % args.p, \
line) clang-tidy-diff.py:258: SyntaxWarning: invalid escape sequence &apos;\+&apos;
  match = re.search(&quot;^@@.*\+(\d+)(,(\d+))?&quot;, line)
```
Using python:
```sh
$ python3 -VV
Python 3.12.3 (main, Apr  9 2024, 08:09:14) [Clang 15.0.0 (clang-1500.3.9.4)]
```

It seems these strings need to be raw strings:
```python3
match = re.search(r&apos;^\+\+\+\ &quot;?(.*?/){%s}([^ \t\n&quot;]*)&apos; % args.p, \
line) #                 ^ note
```
</pre>
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