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-rw-r--r--doc/ref/api-evaluation.texi4
1 files changed, 3 insertions, 1 deletions
diff --git a/doc/ref/api-evaluation.texi b/doc/ref/api-evaluation.texi
index fda029127..f1aeaceb4 100644
--- a/doc/ref/api-evaluation.texi
+++ b/doc/ref/api-evaluation.texi
@@ -292,7 +292,9 @@ Install the procedure @var{proc} for reading expressions
starting with the character sequence @code{#} and @var{chr}.
@var{proc} will be called with two arguments: the character
@var{chr} and the port to read further data from. The object
-returned will be the return value of @code{read}.
+returned will be the return value of @code{read}.
+Passing @code{#f} for @var{proc} will remove a previous setting.
+
@end deffn