]> code.delx.au - gnu-emacs/blobdiff - lisp/complete.el
*** empty log message ***
[gnu-emacs] / lisp / complete.el
index b93202b28943a60e0db5888fb9173799d6be0274..01db126c5f8baa347d05b65eb49e1d6f5fbd765c 100644 (file)
@@ -11,7 +11,7 @@
 
 ;; GNU Emacs is free software; you can redistribute it and/or modify
 ;; it under the terms of the GNU General Public License as published by
-;; the Free Software Foundation; either version 2, or (at your option)
+;; the Free Software Foundation; either version 3, or (at your option)
 ;; any later version.
 
 ;; GNU Emacs is distributed in the hope that it will be useful,
@@ -153,11 +153,8 @@ If nil, means use the colon-separated path in the variable $INCPATH instead."
           (define-key completion-map " "       'minibuffer-complete-word)
           (define-key completion-map "?"       'minibuffer-completion-help)
 
-          (define-key must-match-map "\t"      'minibuffer-complete)
-          (define-key must-match-map " "       'minibuffer-complete-word)
           (define-key must-match-map "\r"      'minibuffer-complete-and-exit)
           (define-key must-match-map "\n"      'minibuffer-complete-and-exit)
-          (define-key must-match-map "?"       'minibuffer-completion-help)
 
           (define-key global-map [remap lisp-complete-symbol]  nil))
          (PC-default-bindings
@@ -173,27 +170,25 @@ If nil, means use the colon-separated path in the variable $INCPATH instead."
           (define-key completion-map "\e\n"    'PC-force-complete-and-exit)
           (define-key completion-map "\e?"     'PC-completion-help)
 
-          (define-key must-match-map "\t"      'PC-complete)
-          (define-key must-match-map " "       'PC-complete-word)
           (define-key must-match-map "\r"      'PC-complete-and-exit)
           (define-key must-match-map "\n"      'PC-complete-and-exit)
-          (define-key must-match-map "?"       'PC-completion-help)
 
-          (define-key must-match-map "\e\t"    'PC-complete)
-          (define-key must-match-map "\e "     'PC-complete-word)
           (define-key must-match-map "\e\r"    'PC-complete-and-exit)
           (define-key must-match-map "\e\n"    'PC-complete-and-exit)
-          (define-key must-match-map "\e?"     'PC-completion-help)
 
           (define-key global-map [remap lisp-complete-symbol]  'PC-lisp-complete-symbol)))))
 
 (defvar PC-do-completion-end nil
   "Internal variable used by `PC-do-completion'.")
 
+(make-variable-buffer-local 'PC-do-completion-end)
+
 (defvar PC-goto-end nil
    "Internal variable set in `PC-do-completion', used in
 `choose-completion-string-functions'.")
 
+(make-variable-buffer-local 'PC-goto-end)
+
 ;;;###autoload
 (define-minor-mode partial-completion-mode
   "Toggle Partial Completion mode.
@@ -227,13 +222,6 @@ second TAB brings up the `*Completions*' buffer."
         (remove-hook 'find-file-not-found-functions 'PC-look-for-include-file))
        ((not PC-disable-includes)
         (add-hook 'find-file-not-found-functions 'PC-look-for-include-file)))
-  ;; ... with some underhand redefining.
-  (cond ((not partial-completion-mode)
-         (ad-disable-advice 'read-file-name-internal 'around 'PC-include-file)
-         (ad-activate 'read-file-name-internal))
-       ((not PC-disable-includes)
-         (ad-enable-advice 'read-file-name-internal 'around 'PC-include-file)
-         (ad-activate 'read-file-name-internal)))
   ;; Adjust the completion selection in *Completion* buffers to the way
   ;; we work.  The default minibuffer completion code only completes the
   ;; text before point and leaves the text after point alone (new in
@@ -340,14 +328,24 @@ See `PC-complete' for details."
     (PC-do-complete-and-exit)))
 
 (defun PC-do-complete-and-exit ()
-  (if (= (point-max) (minibuffer-prompt-end))  ; Duplicate the "bug" that Info-menu relies on...
-      (exit-minibuffer)
+  (cond
+   ((= (point-max) (minibuffer-prompt-end))
+    ;; Duplicate the "bug" that Info-menu relies on...
+    (exit-minibuffer))
+   ((eq minibuffer-completion-confirm 'confirm-only)
+    (if (or (eq last-command this-command)
+            (test-completion (field-string)
+                             minibuffer-completion-table
+                             minibuffer-completion-predicate))
+        (exit-minibuffer)
+      (PC-temp-minibuffer-message " [Confirm]")))
+   (t
     (let ((flag (PC-do-completion 'exit)))
       (and flag
           (if (or (eq flag 'complete)
                   (not minibuffer-completion-confirm))
               (exit-minibuffer)
-            (PC-temp-minibuffer-message " [Confirm]"))))))
+            (PC-temp-minibuffer-message " [Confirm]")))))))
 
 
 (defun PC-completion-help ()
@@ -435,7 +433,9 @@ point-max (as is appropriate for completing a file name).  If
 GOTO-END is non-nil, however, it instead replaces up to END."
   (or beg (setq beg (minibuffer-prompt-end)))
   (or end (setq end (point-max)))
-  (let* ((table minibuffer-completion-table)
+  (let* ((table (if (eq minibuffer-completion-table 'read-file-name-internal)
+                    'PC-read-file-name-internal
+                    minibuffer-completion-table))
         (pred minibuffer-completion-predicate)
         (filename (funcall PC-completion-as-file-name-predicate))
         (dirname nil) ; non-nil only if a filename is being completed
@@ -450,6 +450,7 @@ GOTO-END is non-nil, however, it instead replaces up to END."
         env-on
         regex
         p offset
+         abbreviated
         (poss nil)
         helpposs
         (case-fold-search completion-ignore-case))
@@ -528,11 +529,11 @@ GOTO-END is non-nil, however, it instead replaces up to END."
                     (insert str)
                     (setq end (+ beg (length str)))))
               (if origstr
-                   ;; If the wildcards were introduced by us, it's possible
-                   ;; that read-file-name-internal (especially our
-                   ;; PC-include-file advice) can still find matches for the
-                   ;; original string even if we couldn't, so remove the
-                   ;; added wildcards.
+                       ;; If the wildcards were introduced by us, it's
+                       ;; possible that PC-read-file-name-internal can
+                       ;; still find matches for the original string
+                       ;; even if we couldn't, so remove the added
+                       ;; wildcards.
                    (setq str origstr)
                 (setq filename nil table nil pred nil)))))
 
@@ -586,17 +587,42 @@ GOTO-END is non-nil, however, it instead replaces up to END."
                  pred nil))
 
       ;; Find an initial list of possible completions
-      (if (not (setq p (string-match (concat PC-delim-regex
+        (unless (setq p (string-match (concat PC-delim-regex
                                             (if filename "\\|\\*" ""))
                                     str
-                                    (+ (length dirname) offset))))
+                                      (+ (length dirname) offset)))
 
          ;; Minibuffer contains no hyphens -- simple case!
-         (setq poss (all-completions (if env-on
-                                         basestr str)
+          (setq poss (all-completions (if env-on basestr str)
                                      table
                                      pred))
-
+          (unless poss
+            ;; Try completion as an abbreviation, e.g. "mvb" ->
+            ;; "m-v-b" -> "multiple-value-bind"
+            (setq origstr str
+                  abbreviated t)
+            (if filename
+                (cond
+                  ;; "alpha" or "/alpha" -> expand whole path.
+                  ((string-match "^/?\\([A-Za-z0-9]+\\)$" str)
+                   (setq
+                    basestr ""
+                    p nil
+                    poss (PC-expand-many-files
+                          (concat "/"
+                                  (mapconcat #'list (match-string 1 str) "*/")
+                                  "*"))
+                    beg (1- beg)))
+                  ;; Alphanumeric trailer -> expand trailing file
+                  ((string-match "^\\(.+/\\)\\([A-Za-z0-9]+\\)$" str)
+                   (setq regex (concat "\\`"
+                                        (mapconcat #'list
+                                                   (match-string 2 str)
+                                                   "[A-Za-z0-9]*[^A-Za-z0-9]"))
+                          p (1+ (length (match-string 1 str))))))
+                (setq regex (concat "\\`" (mapconcat #'list str "[^-]*-"))
+                      p 1))))
+        (when p
        ;; Use all-completions to do an initial cull.  This is a big win,
        ;; since all-completions is written in C!
        (let ((compl (all-completions (if env-on
@@ -605,12 +631,24 @@ GOTO-END is non-nil, however, it instead replaces up to END."
                                       table
                                       pred)))
          (setq p compl)
+            (when (and compl abbreviated)
+              (if filename
+                  (progn
+                    (setq p nil)
+                    (dolist (x compl)
+                      (when (string-match regex x)
+                        (push x p)))
+                    (setq basestr (try-completion "" p)))
+                  (setq basestr (mapconcat 'list str "-"))
+                  (delete-region beg end)
+                  (setq end (+ beg (length basestr)))
+                  (insert basestr))))
          (while p
            (and (string-match regex (car p))
                 (progn
                   (set-text-properties 0 (length (car p)) '() (car p))
                   (setq poss (cons (car p) poss))))
-           (setq p (cdr p)))))
+            (setq p (cdr p))))
 
       ;; If table had duplicates, they can be here.
       (delete-dups poss)
@@ -644,6 +682,7 @@ GOTO-END is non-nil, however, it instead replaces up to END."
              (and p (setq poss p))))
 
       ;; Now we have a list of possible completions
+
       (cond
 
        ;; No valid completions found
@@ -653,6 +692,9 @@ GOTO-END is non-nil, however, it instead replaces up to END."
            (let ((PC-word-failed-flag t))
              (delete-backward-char 1)
              (PC-do-completion 'word))
+               (when abbreviated
+                 (delete-region beg end)
+                 (insert origstr))
          (beep)
          (PC-temp-minibuffer-message (if ambig
                                          " [Ambiguous dir name]"
@@ -768,6 +810,8 @@ GOTO-END is non-nil, however, it instead replaces up to END."
                     (let ((prompt-end (minibuffer-prompt-end)))
                       (with-output-to-temp-buffer "*Completions*"
                         (display-completion-list (sort helpposs 'string-lessp))
+                        (setq PC-do-completion-end end
+                              PC-goto-end goto-end)
                         (with-current-buffer standard-output
                           ;; Record which part of the buffer we are completing
                           ;; so that choosing a completion from the list
@@ -786,16 +830,19 @@ GOTO-END is non-nil, however, it instead replaces up to END."
                           ;; plays around with point.
                           (setq completion-base-size (if dirname
                                                          dirlength
-                                                       (- beg prompt-end))
-                                PC-do-completion-end end
-                                PC-goto-end goto-end))))
-                 (PC-temp-minibuffer-message " [Next char not unique]"))
-               nil)))))
+                                                       (- beg prompt-end))))))
+                             (PC-temp-minibuffer-message " [Next char not unique]"))
+                         ;; Expansion of filenames is not reversible,
+                         ;; so just keep the prefix.
+           (when (and abbreviated filename)
+             (delete-region (point) end))
+                         nil)))))
 
        ;; Only one possible completion
        (t
        (if (and (equal basestr (car poss))
-                (not (and env-on filename)))
+                 (not (and env-on filename))
+                 (not abbreviated))
            (if (null mode)
                (PC-temp-minibuffer-message " [Sole completion]"))
          (delete-region beg end)
@@ -853,13 +900,11 @@ only symbols with function definitions are considered.
 Otherwise, all symbols with function definitions, values
 or properties are considered."
   (interactive)
-  (let* ((end (point))
-         ;; To complete the word under point, rather than just the portion
-         ;; before point, use this:
-;;;           (save-excursion
-;;;             (with-syntax-table lisp-mode-syntax-table
-;;;               (forward-sexp 1)
-;;;               (point))))
+  (let* ((end
+          (save-excursion
+            (with-syntax-table lisp-mode-syntax-table
+              (skip-syntax-forward "_w")
+              (point))))
         (beg (save-excursion
                 (with-syntax-table lisp-mode-syntax-table
                   (backward-sexp 1)
@@ -917,7 +962,7 @@ or properties are considered."
                                       (point-min) t)
                    (+ (point) 2)
                    (point-min)))
-          (minibuffer-completion-table 'read-file-name-internal)
+          (minibuffer-completion-table 'PC-read-file-name-internal)
           (minibuffer-completion-predicate "")
           (PC-not-minibuffer t))
      (goto-char end)
@@ -1103,24 +1148,23 @@ absolute rather than relative to some directory on the SEARCH-PATH."
          (setq sorted (cdr sorted)))
        compressed))))
 
-(defadvice read-file-name-internal (around PC-include-file disable)
-  (if (string-match "<\\([^\"<>]*\\)>?\\'" (ad-get-arg 0))
-      (let* ((string (ad-get-arg 0))
-             (action (ad-get-arg 2))
-             (name (match-string 1 string))
+(defun PC-read-file-name-internal (string dir action)
+  "Extend `read-file-name-internal' to handle include files.
+This is only used by "
+  (if (string-match "<\\([^\"<>]*\\)>?\\'" string)
+      (let* ((name (match-string 1 string))
             (str2 (substring string (match-beginning 0)))
             (completion-table
              (mapcar (lambda (x)
                         (format (if (string-match "/\\'" x) "<%s" "<%s>") x))
                      (PC-include-file-all-completions
                       name (PC-include-file-path)))))
-        (setq ad-return-value
               (cond
                ((not completion-table) nil)
                ((eq action 'lambda) (test-completion str2 completion-table nil))
                ((eq action nil) (PC-try-completion str2 completion-table nil))
-               ((eq action t) (all-completions str2 completion-table nil)))))
-    ad-do-it))
+          ((eq action t) (all-completions str2 completion-table nil))))
+    (read-file-name-internal string dir action)))
 \f
 
 (provide 'complete)