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bug#11714: 24.1.50; find-file completion on a remote directory
From: |
Stefan Monnier |
Subject: |
bug#11714: 24.1.50; find-file completion on a remote directory |
Date: |
Fri, 22 Jun 2012 23:49:46 -0400 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/24.1.50 (gnu/linux) |
>> Recipe from "emacs -Q":
>> 1. Eval: (cd "/some-user@some-host:~")
>> 2. Give the correct password.
>> 3. Type: C-x C-f / h o m e / s o m e - u s e r / t TAB
I just fixed this in the trunk with the patch below.
Stefan
=== modified file 'lisp/minibuffer.el'
--- lisp/minibuffer.el 2012-06-18 20:39:52 +0000
+++ lisp/minibuffer.el 2012-06-23 03:46:25 +0000
@@ -488,7 +488,7 @@
(defun completion--twq-try (string ustring completion point
unquote requote)
- ;; Basically two case: either the new result is
+ ;; Basically two cases: either the new result is
;; - commonprefix1 <point> morecommonprefix <qpos> suffix
;; - commonprefix <qpos> newprefix <point> suffix
(pcase-let*
@@ -505,8 +505,13 @@
((> point (length prefix)) (+ qpos (length qstr1)))
(t (car (funcall requote point string))))))
;; Make sure `requote' worked.
- (assert (equal (funcall unquote qstring) completion))
- (cons qstring qpoint)))
+ (if (equal (funcall unquote qstring) completion)
+ (cons qstring qpoint)
+ ;; If requote failed (e.g. because sifn-requote did not handle
+ ;; Tramp's "/foo:/bar//baz -> /foo:/baz" truncation), then at least
+ ;; try requote properly.
+ (let ((qstr (funcall qfun completion)))
+ (cons qstr (length qstr))))))
(defun completion--string-equal-p (s1 s2)
(eq t (compare-strings s1 nil nil s2 nil nil 'ignore-case)))
@@ -2130,6 +2135,12 @@
;; find the position corresponding to UPOS in QSTR, but
;; substitute-in-file-name can do anything, depending on file-name-handlers.
;; Kind of like in rfn-eshadow-update-overlay, only worse.
+ ;; FIXME: example of thing we do not handle: Tramp's makes
+ ;; (substitute-in-file-name "/foo:~/bar//baz") -> "/scpc:foo:/baz".
+ ;; FIXME: One way to try and handle "all" cases is to require
+ ;; substitute-in-file-name to preserve text-properties, so we could
+ ;; apply text-properties to the input string and then look for them in
+ ;; the output to understand what comes from where.
(let ((qpos 0))
;; Handle substitute-in-file-name's truncation behavior.
(let (tpos)
@@ -2824,14 +2835,14 @@
(defun completion--sreverse (str)
"Like `reverse' but for a string STR rather than a list."
- (apply 'string (nreverse (mapcar 'identity str))))
+ (apply #'string (nreverse (mapcar 'identity str))))
(defun completion--common-suffix (strs)
"Return the common suffix of the strings STRS."
(completion--sreverse
(try-completion
""
- (mapcar 'completion--sreverse strs))))
+ (mapcar #'completion--sreverse strs))))
(defun completion-pcm--merge-completions (strs pattern)
"Extract the commonality in STRS, with the help of PATTERN.