# \[PATCH v3 13/27\] scripts/documentation-file-ref-check: hint: dash or underline

- From: Mauro Carvalho Chehab \<mchehab+samsung@kernel.org\>
- Date: 2018-06-14 16:16:01 
- List: linux-doc
- Page: https://ratatoskr.run/linux-doc/2018/06/5308168
- Thread: https://ratatoskr.run/linux-doc/2018/06/5308148/t.md

```text
Sometimes, people use dash instead of underline or vice-versa.
Try to autocorrect it.

Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
---
 scripts/documentation-file-ref-check | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/scripts/documentation-file-ref-check b/scripts/documentation-file-ref-check
index c8bc1c1c1d6e..d132f756d31d 100755
--- a/scripts/documentation-file-ref-check
+++ b/scripts/documentation-file-ref-check
@@ -104,6 +104,12 @@ foreach my $ref (keys %broken_ref) {
 		$f=qx(find . -iname $new) if ($new);
 	}
 
+	# usual reason for breakage: use dash or underline
+	if (!$f) {
+		$new =~ s/[-_]/[-_]/g;
+		$f=qx(find . -iname $new) if ($new);
+	}
+
 	# Wild guess: seek for the same name on another place
 	if (!$f) {
 		$f = qx(find . -iname $new) if ($new);
-- 
2.17.1

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```
