X-Git-Url: https://thelambdalab.xyz/gitweb/index.cgi?p=elpher.git;a=blobdiff_plain;f=elpher.el;h=11ca3c171064cf2946f762e39a33977d8b523b4f;hp=2e3c5ec7468531356c74c75be812c69abdfbb49f;hb=8e2dafcf5d63dd51078a77d6535905f2f34fee59;hpb=7b52709ddf798fe53db3855eef52ca8862e7700d

diff --git a/elpher.el b/elpher.el
index 2e3c5ec..11ca3c1 100644
--- a/elpher.el
+++ b/elpher.el
@@ -1429,17 +1429,20 @@ Returns the url portion in the event that the display-string portion is empty."
                    rest))))
 
 (defun elpher-collapse-dot-sequences (filename)
-  "Collapse dot sequences in FILENAME.
-For instance, the filename /a/b/../c/./d will reduce to /a/c/d"
-  (let* ((path (split-string filename "/"))
+  "Collapse dot sequences in the (absolute) FILENAME.
+For instance, the filename \"/a/b/../c/./d\" will reduce to \"/a/c/d\""
+  (let* ((path (split-string filename "/" t))
+         (is-directory (string-match-p (rx (: (or "." ".." "/") line-end)) filename))
          (path-reversed-normalized
           (seq-reduce (lambda (a b)
-                        (cond ((and a (equal b "..") (cdr a)))
-                              ((and (not a) (equal b "..")) a) ;leading .. are dropped
+                        (cond ((equal b "..") (cdr a))
                               ((equal b ".") a)
                               (t (cons b a))))
-                      path nil)))
-    (string-join (reverse path-reversed-normalized) "/")))
+                      path nil))
+         (path-normalized (reverse path-reversed-normalized)))
+    (if path-normalized
+        (concat "/" (string-join path-normalized "/") (and is-directory "/"))
+      "/")))
 
 (defun elpher-address-from-gemini-url (url)
   "Extract address from URL with defaults as per gemini map files.