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<base href="https://llvm.org/bugs/" />
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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - clang-format Emacs integration breaks on Windows"
href="https://llvm.org/bugs/show_bug.cgi?id=31092">31092</a>
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<th>Summary</th>
<td>clang-format Emacs integration breaks on Windows
</td>
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<th>Product</th>
<td>clang
</td>
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<th>Version</th>
<td>3.9
</td>
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<th>Hardware</th>
<td>PC
</td>
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<th>OS</th>
<td>Windows NT
</td>
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<th>Status</th>
<td>NEW
</td>
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<th>Severity</th>
<td>normal
</td>
</tr>
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<th>Priority</th>
<td>P
</td>
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<th>Component</th>
<td>Formatter
</td>
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<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
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<th>Reporter</th>
<td>Romain@alazartech.com
</td>
</tr>
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<th>CC</th>
<td>djasper@google.com, klimek@google.com, llvm-bugs@lists.llvm.org
</td>
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<th>Classification</th>
<td>Unclassified
</td>
</tr></table>
<p>
<div>
<pre>Running `clang-format-buffer` from clang-format.el on any file that contains
multiple lines under Windows throws an error, even if the file contains only
ASCII characters:
(clang-format failed with code 1: error: invalid length 34, offset + length
(34) is outside the file.)
The issues comes from the fact that Emacs uses `undecided-unix` encoding by
default to send data to subprocesses, but `undecided-dos` to receive data from
them, as shown by calling `describe-coding-system` on any buffer.
This problem can be fixed by calling `(setq default-process-coding-system
'(undecided-dos . undecided-dos))` in `.emacs`.
I am not sure if this issue can or should be solved at clang-format.el level,
but I thought it is worth pointing out since it affects every Emacs user on
Windows that hasn't fiddled with the `default-process-coding-system` variable.</pre>
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</p>
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