civodul pushed a commit to branch master
in repository guix.
commit 199218e372f490ae8158bac99d3a434557ef1bec
Author: Gabriel Wicki <[email protected]>
AuthorDate: Thu Apr 13 10:31:57 2023 +0200
doc: Clarify substitute* docstring with an example.
* doc/guix.texi (Build Utilities): Update the corresponding passage.
Co-authored-by: Ludovic Courtès <[email protected]>
---
doc/guix.texi | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/doc/guix.texi b/doc/guix.texi
index 2871fb9957..31ebcf9db4 100644
--- a/doc/guix.texi
+++ b/doc/guix.texi
@@ -10379,7 +10379,9 @@ Alternatively, @var{file} may be a list of file names,
in which case
they are all subject to the substitutions.
Be careful about using @code{$} to match the end of a line; by itself it
-won't match the terminating newline of a line.
+won't match the terminating newline of a line. For example, to match a
+whole line ending with a backslash, one needs a regex like
+@code{"(.*)\\\\\n$"}.
@end defmac
@subsection File Search
