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| -rw-r--r-- | lisp/files.el | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/lisp/files.el b/lisp/files.el index 16df2661fcf..2eaeae5ac86 100644 --- a/lisp/files.el +++ b/lisp/files.el @@ -3062,6 +3062,7 @@ except that a leading `.', if any, doesn't count." (defun file-name-extension (filename &optional period) "Return FILENAME's final \"extension\". The extension, in a file name, is the part that follows the last `.', +excluding version numbers and backup suffixes, except that a leading `.', if any, doesn't count. Return nil for extensionless file names such as `foo'. Return the empty string for file names such as `foo.'. |