diff options
| -rw-r--r-- | lispref/minibuf.texi | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/lispref/minibuf.texi b/lispref/minibuf.texi index 380cbca3aa3..f1d2569a466 100644 --- a/lispref/minibuf.texi +++ b/lispref/minibuf.texi @@ -1060,8 +1060,12 @@ A flag specifying the type of operation. @item @code{nil} specifies @code{try-completion}. The completion function should return the completion of the specified string, or @code{t} if the -string is an exact match already, or @code{nil} if the string matches no -possibility. +string is a unique and exact match already, or @code{nil} if the string +matches no possibility. + +If the string is an exact match for one possibility, but also matches +other longer possibilities, the function shuold return the string, not +@code{t}. @item @code{t} specifies @code{all-completions}. The completion function |