Tuning for `separate' Tramp syntax

* lisp/net/tramp.el (tramp-method-regexp): Fix it for `separate' syntax.
(tramp-completion-file-name-regexp-separate): Simplify.

* test/lisp/net/tramp-tests.el (tramp-test02-file-name-dissect-separate):
Extend test.

2 files changed, 156 insertions, 4 deletions

diff --git a/lisp/net/tramp.el b/lisp/net/tramp.el
index 12169d473e4..9b80c596a3a 100644
--- a/lisp/net/tramp.el
+++ b/lisp/net/tramp.el
@@ -717,7 +717,10 @@ Should always start with \"^\". Derived from `tramp-prefix-format'."
 (defun tramp-method-regexp ()
   "Regexp matching methods identifiers.
 The `ftp' syntax does not support methods."
-  (if (eq (tramp-compat-tramp-syntax) 'simplified) "" "[a-zA-Z0-9-]+"))
+  (cond ((eq (tramp-compat-tramp-syntax) 'default) "[a-zA-Z0-9-]+")
+        ((eq (tramp-compat-tramp-syntax) 'simplified) "")
+        ((eq (tramp-compat-tramp-syntax) 'separate) "[a-zA-Z0-9-]*")
+        (t (error "Wrong `tramp-syntax' %s" tramp-syntax))))
 
 (defun tramp-postfix-method-format ()
   "String matching delimiter between method and user or host names.
@@ -942,7 +945,7 @@ See `tramp-file-name-structure' for more explanations.
 On W32 systems, the volume letter must be ignored.")
 
 (defconst tramp-completion-file-name-regexp-separate
-  "\\`/\\[\\([^]]*\\)?\\'"
+  "\\`/\\[[^]]*\\'"
   "Value for `tramp-completion-file-name-regexp' for separate remoting.
 See `tramp-file-name-structure' for more explanations.")
 
@@ -2306,7 +2309,7 @@ not in completion mode."
 
 ;; Method, host name and user name completion.
 ;; `tramp-completion-dissect-file-name' returns a list of
-;; tramp-file-name structures. For all of them we return possible completions.
+;; tramp-file-name structures.  For all of them we return possible completions.
 (defun tramp-completion-handle-file-name-all-completions (filename directory)
   "Like `file-name-all-completions' for partial Tramp files."
 
diff --git a/test/lisp/net/tramp-tests.el b/test/lisp/net/tramp-tests.el
index 9dcb3ec9767..1d487bc12d7 100644
--- a/test/lisp/net/tramp-tests.el
+++ b/test/lisp/net/tramp-tests.el
@@ -764,7 +764,7 @@ handled properly.  BODY shall not contain a timeout."
                    (file-remote-p "/user@host#1234:" 'localname) ""))
           (should (string-equal (file-remote-p "/user@host#1234:" 'hop) nil))
 
-    ;; Expand `tramp-default-method' and `tramp-default-user'.
+          ;; Expand `tramp-default-method' and `tramp-default-user'.
           (should (string-equal
                    (file-remote-p "/1.2.3.4:")
                    (format "/%s@%s:" "default-user" "1.2.3.4")))
@@ -961,6 +961,43 @@ handled properly.  BODY shall not contain a timeout."
 
           ;; Expand `tramp-default-method' and `tramp-default-user'.
           (should (string-equal
+                   (file-remote-p "/[/host]")
+                   (format
+                    "/[%s/%s@%s]" "default-method" "default-user" "host")))
+          (should (string-equal
+                   (file-remote-p "/[/host]" 'method) "default-method"))
+          (should (string-equal
+                   (file-remote-p "/[/host]" 'user) "default-user"))
+          (should (string-equal (file-remote-p "/[/host]" 'host) "host"))
+          (should (string-equal (file-remote-p "/[/host]" 'localname) ""))
+          (should (string-equal (file-remote-p "/[/host]" 'hop) nil))
+
+          ;; Expand `tramp-default-method' and `tramp-default-host'.
+          (should (string-equal
+                   (file-remote-p "/[/user@]")
+                   (format
+                    "/[%s/%s@%s]" "default-method" "user" "default-host")))
+          (should (string-equal
+                   (file-remote-p "/[/user@]" 'method) "default-method"))
+          (should (string-equal (file-remote-p "/[/user@]" 'user) "user"))
+          (should (string-equal
+                   (file-remote-p "/[/user@]" 'host) "default-host"))
+          (should (string-equal (file-remote-p "/[/user@]" 'localname) ""))
+          (should (string-equal (file-remote-p "/[/user@]" 'hop) nil))
+
+          ;; Expand `tramp-default-method'.
+          (should (string-equal
+                   (file-remote-p "/[/user@host]")
+                   (format "/[%s/%s@%s]" "default-method" "user" "host")))
+          (should (string-equal
+                   (file-remote-p "/[/user@host]" 'method) "default-method"))
+          (should (string-equal (file-remote-p "/[/user@host]" 'user) "user"))
+          (should (string-equal (file-remote-p "/[/user@host]" 'host) "host"))
+          (should (string-equal (file-remote-p "/[/user@host]" 'localname) ""))
+          (should (string-equal (file-remote-p "/[/user@host]" 'hop) nil))
+
+          ;; Expand `tramp-default-method' and `tramp-default-user'.
+          (should (string-equal
                    (file-remote-p "/[-/host]")
                    (format
                     "/[%s/%s@%s]" "default-method" "default-user" "host")))
@@ -1055,6 +1092,36 @@ handled properly.  BODY shall not contain a timeout."
 
           ;; Expand `tramp-default-method' and `tramp-default-user'.
           (should (string-equal
+                   (file-remote-p "/[/host#1234]")
+                   (format
+                    "/[%s/%s@%s]" "default-method" "default-user" "host#1234")))
+          (should (string-equal
+                   (file-remote-p "/[/host#1234]" 'method) "default-method"))
+          (should (string-equal
+                   (file-remote-p "/[/host#1234]" 'user) "default-user"))
+          (should (string-equal
+                   (file-remote-p "/[/host#1234]" 'host) "host#1234"))
+          (should (string-equal (file-remote-p "/[/host#1234]" 'localname) ""))
+          (should (string-equal (file-remote-p "/[/host#1234]" 'hop) nil))
+
+          ;; Expand `tramp-default-method'.
+          (should (string-equal
+                   (file-remote-p "/[/user@host#1234]")
+                   (format "/[%s/%s@%s]" "default-method" "user" "host#1234")))
+          (should (string-equal
+                   (file-remote-p
+                    "/[/user@host#1234]" 'method) "default-method"))
+          (should (string-equal
+                   (file-remote-p
+                    "/[/user@host#1234]" 'user) "user"))
+          (should (string-equal
+                   (file-remote-p "/[/user@host#1234]" 'host) "host#1234"))
+          (should (string-equal
+                   (file-remote-p "/[/user@host#1234]" 'localname) ""))
+          (should (string-equal (file-remote-p "/[/user@host#1234]" 'hop) nil))
+
+          ;; Expand `tramp-default-method' and `tramp-default-user'.
+          (should (string-equal
                    (file-remote-p "/[-/host#1234]")
                    (format
                     "/[%s/%s@%s]" "default-method" "default-user" "host#1234")))
@@ -1115,6 +1182,35 @@ handled properly.  BODY shall not contain a timeout."
 
           ;; Expand `tramp-default-method' and `tramp-default-user'.
           (should (string-equal
+                   (file-remote-p "/[/1.2.3.4]")
+                   (format
+                    "/[%s/%s@%s]" "default-method" "default-user" "1.2.3.4")))
+          (should (string-equal
+                   (file-remote-p "/[/1.2.3.4]" 'method) "default-method"))
+          (should (string-equal
+                   (file-remote-p "/[/1.2.3.4]" 'user) "default-user"))
+          (should (string-equal
+                   (file-remote-p "/[/1.2.3.4]" 'host) "1.2.3.4"))
+          (should (string-equal (file-remote-p "/[/1.2.3.4]" 'localname) ""))
+          (should (string-equal (file-remote-p "/[/1.2.3.4]" 'hop) nil))
+
+          ;; Expand `tramp-default-method'.
+          (should (string-equal
+                   (file-remote-p "/[/user@1.2.3.4]")
+                   (format "/[%s/%s@%s]" "default-method" "user" "1.2.3.4")))
+          (should (string-equal
+                   (file-remote-p
+                    "/[/user@1.2.3.4]" 'method) "default-method"))
+          (should (string-equal
+                   (file-remote-p "/[/user@1.2.3.4]" 'user) "user"))
+          (should (string-equal
+                   (file-remote-p "/[/user@1.2.3.4]" 'host) "1.2.3.4"))
+          (should (string-equal
+                   (file-remote-p "/[/user@1.2.3.4]" 'localname) ""))
+          (should (string-equal (file-remote-p "/[/user@1.2.3.4]" 'hop) nil))
+
+          ;; Expand `tramp-default-method' and `tramp-default-user'.
+          (should (string-equal
                    (file-remote-p "/[-/1.2.3.4]")
                    (format
                     "/[%s/%s@%s]" "default-method" "default-user" "1.2.3.4")))
@@ -1174,6 +1270,58 @@ handled properly.  BODY shall not contain a timeout."
           ;; Expand `tramp-default-method', `tramp-default-user' and
           ;; `tramp-default-host'.
           (should (string-equal
+                   (file-remote-p "/[/]")
+                   (format
+                    "/[%s/%s@%s]"
+                    "default-method" "default-user" "default-host")))
+          (should (string-equal
+                   (file-remote-p "/[/]" 'method) "default-method"))
+          (should (string-equal (file-remote-p "/[/]" 'user) "default-user"))
+          (should (string-equal (file-remote-p "/[/]" 'host) "default-host"))
+          (should (string-equal (file-remote-p "/[/]" 'localname) ""))
+          (should (string-equal (file-remote-p "/[/]" 'hop) nil))
+
+          ;; Expand `tramp-default-method' and `tramp-default-user'.
+          (let ((tramp-default-host "::1"))
+            (should (string-equal
+                     (file-remote-p "/[/]")
+                     (format
+                      "/[%s/%s@%s]"
+                      "default-method" "default-user" "::1")))
+            (should (string-equal
+                     (file-remote-p "/[/]" 'method) "default-method"))
+            (should (string-equal (file-remote-p "/[/]" 'user) "default-user"))
+            (should (string-equal (file-remote-p "/[/]" 'host) "::1"))
+            (should (string-equal (file-remote-p "/[/]" 'localname) ""))
+            (should (string-equal (file-remote-p "/[/]" 'hop) nil)))
+
+          ;; Expand `tramp-default-method' and `tramp-default-user'.
+          (should (string-equal
+                   (file-remote-p "/[/::1]")
+                   (format
+                    "/[%s/%s@%s]" "default-method" "default-user" "::1")))
+          (should (string-equal
+                   (file-remote-p "/[/::1]" 'method) "default-method"))
+          (should (string-equal
+                   (file-remote-p "/[/::1]" 'user) "default-user"))
+          (should (string-equal (file-remote-p "/[/::1]" 'host) "::1"))
+          (should (string-equal (file-remote-p "/[/::1]" 'localname) ""))
+          (should (string-equal (file-remote-p "/[/::1]" 'hop) nil))
+
+          ;; Expand `tramp-default-method'.
+          (should (string-equal
+                   (file-remote-p "/[/user@::1]")
+                   (format "/[%s/%s@%s]" "default-method" "user" "::1")))
+          (should (string-equal
+                   (file-remote-p "/[/user@::1]" 'method) "default-method"))
+          (should (string-equal (file-remote-p "/[/user@::1]" 'user) "user"))
+          (should (string-equal (file-remote-p "/[/user@::1]" 'host) "::1"))
+          (should (string-equal (file-remote-p "/[/user@::1]" 'localname) ""))
+          (should (string-equal (file-remote-p "/[/user@::1]" 'hop) nil))
+
+          ;; Expand `tramp-default-method', `tramp-default-user' and
+          ;; `tramp-default-host'.
+          (should (string-equal
                    (file-remote-p "/[-/]")
                    (format
                     "/[%s/%s@%s]"
@@ -1250,6 +1398,7 @@ handled properly.  BODY shall not contain a timeout."
           (should (string-equal (file-remote-p "/[method/user@::1]" 'hop) nil))
 
           ;; Local file name part.
+          (should (string-equal (file-remote-p "/[/host]/:" 'localname) "/:"))
           (should (string-equal (file-remote-p "/[-/host]/:" 'localname) "/:"))
           (should (string-equal (file-remote-p "/[method/]:" 'localname) ":"))
           (should (string-equal (file-remote-p "/[method/] " 'localname) " "))