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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - Type of regular expression in clang-format is not documented"
href="https://bugs.llvm.org/show_bug.cgi?id=35041">35041</a>
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<th>Summary</th>
<td>Type of regular expression in clang-format is not documented
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<th>Product</th>
<td>clang
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<th>Version</th>
<td>trunk
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<th>Hardware</th>
<td>All
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<th>OS</th>
<td>All
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<th>Status</th>
<td>NEW
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<th>Severity</th>
<td>enhancement
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<th>Priority</th>
<td>P
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<th>Component</th>
<td>Documentation
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<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
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<th>Reporter</th>
<td>wim.leflere@gmail.com
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<th>CC</th>
<td>llvm-bugs@lists.llvm.org
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<pre>clang-format uses regular expressions to give priorities when sorting includes.
It uses 'POSIX extended regular expressions' for this. But this is missing from
the documentation.
I found out because '\w' to match word characters doesn't work. You have to use
[[:alnum:]].
The documentation could link to <a href="https://man.openbsd.org/re_format.7">https://man.openbsd.org/re_format.7</a></pre>
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