;; info.el --- info package for Emacs
-;; Copyright (C) 1985-1986, 1992-2012 Free Software Foundation, Inc.
+;; Copyright (C) 1985-1986, 1992-2013 Free Software Foundation, Inc.
;; Maintainer: FSF
;; Keywords: help
:group 'info
:version "24.1")
-(defcustom Info-enable-edit nil
- "Non-nil means the \\<Info-mode-map>\\[Info-edit] command in Info can edit the current node.
-This is convenient if you want to write Info files by hand.
-However, we recommend that you not do this.
-It is better to write a Texinfo file and generate the Info file from that,
-because that gives you a printed manual as well."
- :type 'boolean
- :group 'info)
-
(defvar Info-enable-active-nodes nil
"Non-nil allows Info to execute Lisp code associated with nodes.
The Lisp code is executed when the node is selected.")
(defvar Info-edit-mode-hook nil
"Hooks run when `Info-edit-mode' is called.")
+(make-obsolete-variable 'Info-edit-mode-hook
+ "editing Info nodes by hand is not recommended." "24.4")
+
(defvar Info-current-file nil
"Info file that Info is now looking at, or nil.
This is the name that was specified in Info, not the actual file name.
(defvar Info-current-file-completions nil
"Cached completion list for current Info file.")
+(defvar Info-file-completions nil
+ "Cached completion alist of visited Info files.
+Each element of the alist is (FILE . COMPLETIONS)")
+
(defvar Info-file-supports-index-cookies nil
"Non-nil if current Info file supports index cookies.")
(defvar Info-standalone nil
"Non-nil if Emacs was started solely as an Info browser.")
+(defvar Info-file-attributes nil
+ "Alist of file attributes of visited Info files.
+Each element is a list (FILE-NAME FILE-ATTRIBUTES...).")
+
+(defvar Info-toc-nodes nil
+ "Alist of cached parent-children node information in visited Info files.
+Each element is (FILE (NODE-NAME PARENT SECTION CHILDREN) ...)
+where PARENT is the parent node extracted from the Up pointer,
+SECTION is the section name in the Top node where this node is placed,
+CHILDREN is a list of child nodes extracted from the node menu.")
+
+(defvar Info-index-nodes nil
+ "Alist of cached index node names of visited Info files.
+Each element has the form (INFO-FILE INDEX-NODE-NAMES-LIST).")
+
(defvar Info-virtual-files nil
"List of definitions of virtual Info files.
Each element of the list has the format (FILENAME (OPERATION . HANDLER) ...)
(apply 'call-process-region (point-min) (point-max)
(car decoder) t t nil (cdr decoder))))
(let ((inhibit-null-byte-detection t)) ; Index nodes include null bytes
- (insert-file-contents fullname visit)))))
+ (insert-file-contents fullname visit)))
+
+ ;; Clear the caches of modified Info files.
+ (let* ((attribs-old (cdr (assoc fullname Info-file-attributes)))
+ (modtime-old (and attribs-old (nth 5 attribs-old)))
+ (attribs-new (and (stringp fullname) (file-attributes fullname)))
+ (modtime-new (and attribs-new (nth 5 attribs-new))))
+ (when (and modtime-old modtime-new
+ (> (float-time modtime-new) (float-time modtime-old)))
+ (setq Info-index-nodes (remove (assoc (or Info-current-file filename)
+ Info-index-nodes)
+ Info-index-nodes))
+ (setq Info-toc-nodes (remove (assoc (or Info-current-file filename)
+ Info-toc-nodes)
+ Info-toc-nodes)))
+ ;; Add new modtime to `Info-file-attributes'.
+ (setq Info-file-attributes
+ (cons (cons fullname attribs-new)
+ (remove (assoc fullname Info-file-attributes)
+ Info-file-attributes))))))
(defun Info-file-supports-index-cookies (&optional file)
"Return non-nil value if FILE supports Info index cookies.
(push dir Info-directory-list)))))))
;;;###autoload
-(defun info-other-window (&optional file-or-node)
+(defun info-other-window (&optional file-or-node buffer)
"Like `info' but show the Info buffer in another window."
- (interactive (if current-prefix-arg
- (list (read-file-name "Info file name: " nil nil t))))
- (info-setup file-or-node (switch-to-buffer-other-window "*info*")))
+ (interactive (list
+ (if (and current-prefix-arg (not (numberp current-prefix-arg)))
+ (read-file-name "Info file name: " nil nil t))
+ (if (numberp current-prefix-arg)
+ (format "*info*<%s>" current-prefix-arg))))
+ (info-setup file-or-node
+ (switch-to-buffer-other-window (or buffer "*info*"))))
;;;###autoload (put 'info 'info-file (purecopy "emacs"))
;;;###autoload
In interactive use, a non-numeric prefix argument directs
this command to read a file name from the minibuffer.
-A numeric prefix argument selects an Info buffer with the prefix number
-appended to the Info buffer name.
+
+A numeric prefix argument N selects an Info buffer named
+\"*info*<%s>\".
The search path for Info files is in the variable `Info-directory-list'.
The top-level Info directory is made by combining all the files named `dir'
" ("
(if (stringp Info-current-file)
(replace-regexp-in-string
- "%" "%%" (file-name-nondirectory Info-current-file))
+ "%" "%%"
+ (file-name-sans-extension
+ (file-name-nondirectory Info-current-file)))
(format "*%S*" Info-current-file))
") "
(if Info-current-node
If NODENAME is of the form (FILENAME)NODENAME, the node is in the Info file
FILENAME; otherwise, NODENAME should be in the current Info file (or one of
its sub-files).
-Completion is available, but only for node names in the current Info file.
+Completion is available for node names in the current Info file as well as
+in the Info file FILENAME after the closing parenthesis in (FILENAME).
+Empty NODENAME in (FILENAME) defaults to the Top node.
If FORK is non-nil (interactively with a prefix arg), show the node in
a new Info buffer.
If FORK is a string, it is the name to use for the new buffer."
(when (file-name-absolute-p string)
(setq dirs (list (file-name-directory string))))
(let ((names nil)
+ (names-sans-suffix nil)
(suffix (concat (regexp-opt suffixes t) "\\'"))
(string-dir (file-name-directory string)))
(dolist (dir dirs)
;; add the unsuffixed name as a completion option.
(when (string-match suffix file)
(setq file (substring file 0 (match-beginning 0)))
- (push (if string-dir (concat string-dir file) file) names)))))
+ (push (if string-dir (concat string-dir file) file)
+ names-sans-suffix)))))
+ ;; If there is just one file, don't duplicate it with suffixes,
+ ;; so `Info-read-node-name-1' will be able to complete a single
+ ;; candidate and to add the terminating ")".
+ (if (and (= (length names) 1) (= (length names-sans-suffix) 1))
+ (setq names names-sans-suffix)
+ (setq names (append names-sans-suffix names)))
(complete-with-action action names string pred)))
(defun Info-read-node-name-1 (string predicate code)
(substring string 1)
predicate
code))
- ;; If a file name was given, then any node is fair game.
- ((string-match "\\`(" string)
- (cond
- ((eq code nil) string)
- ((eq code t) nil)
- (t t)))
+ ;; If a file name was given, complete nodes in the file.
+ ((string-match "\\`(\\([^)]+\\))" string)
+ (let ((file0 (match-string 0 string))
+ (file1 (match-string 1 string))
+ (nodename (substring string (match-end 0))))
+ (if (and (equal nodename "") (eq code 'lambda))
+ ;; Empty node name is permitted that means "Top".
+ t
+ (completion-table-with-context
+ file0
+ (apply-partially
+ (lambda (string pred action)
+ (complete-with-action
+ action
+ (Info-build-node-completions (Info-find-file file1))
+ string pred)))
+ nodename predicate code))))
;; Otherwise use Info-read-node-completion-table.
(t (complete-with-action
code Info-read-node-completion-table string predicate))))
(defun Info-read-node-name (prompt)
"Read an Info node name with completion, prompting with PROMPT.
A node name can have the form \"NODENAME\", referring to a node
-in the current Info file, or \"(FILENAME)NODENAME\"."
+in the current Info file, or \"(FILENAME)NODENAME\", referring to
+a node in FILENAME. \"(FILENAME)\" is a short format to go to
+the Top node in FILENAME."
(let* ((completion-ignore-case t)
(Info-read-node-completion-table (Info-build-node-completions))
(nodename (completing-read prompt 'Info-read-node-name-1 nil t)))
(Info-read-node-name prompt)
nodename)))
-(defun Info-build-node-completions ()
- (or Info-current-file-completions
- (let ((compl nil)
- ;; Bind this in case the user sets it to nil.
- (case-fold-search t)
- (node-regexp "Node: *\\([^,\n]*\\) *[,\n\t]"))
- (save-excursion
- (save-restriction
- (or Info-tag-table-marker
- (error "No Info tags found"))
- (if (marker-buffer Info-tag-table-marker)
- (let ((marker Info-tag-table-marker))
- (set-buffer (marker-buffer marker))
- (widen)
- (goto-char marker)
- (while (re-search-forward "\n\\(Node\\|Ref\\): \\(.*\\)\177" nil t)
- (setq compl
- (cons (list (match-string-no-properties 2))
- compl))))
+(defun Info-build-node-completions (&optional filename)
+ (if filename
+ (or (cdr (assoc filename Info-file-completions))
+ (with-temp-buffer
+ (Info-mode)
+ (Info-goto-node (format "(%s)Top" filename))
+ (Info-build-node-completions-1)
+ (push (cons filename Info-current-file-completions) Info-file-completions)
+ Info-current-file-completions))
+ (or Info-current-file-completions
+ (Info-build-node-completions-1))))
+
+(defun Info-build-node-completions-1 ()
+ (let ((compl nil)
+ ;; Bind this in case the user sets it to nil.
+ (case-fold-search t)
+ (node-regexp "Node: *\\([^,\n]*\\) *[,\n\t]"))
+ (save-excursion
+ (save-restriction
+ (or Info-tag-table-marker
+ (error "No Info tags found"))
+ (if (marker-buffer Info-tag-table-marker)
+ (let ((marker Info-tag-table-marker))
+ (set-buffer (marker-buffer marker))
(widen)
- (goto-char (point-min))
- ;; If the buffer begins with a node header, process that first.
- (if (Info-node-at-bob-matching node-regexp)
- (setq compl (list (match-string-no-properties 1))))
- ;; Now for the rest of the nodes.
- (while (search-forward "\n\^_" nil t)
- (forward-line 1)
- (let ((beg (point)))
- (forward-line 1)
- (if (re-search-backward node-regexp beg t)
- (setq compl
- (cons (list (match-string-no-properties 1))
- compl))))))))
- (setq compl (cons '("*") compl))
- (set (make-local-variable 'Info-current-file-completions) compl))))
+ (goto-char marker)
+ (while (re-search-forward "\n\\(Node\\|Ref\\): \\(.*\\)\177" nil t)
+ (setq compl
+ (cons (list (match-string-no-properties 2))
+ compl))))
+ (widen)
+ (goto-char (point-min))
+ ;; If the buffer begins with a node header, process that first.
+ (if (Info-node-at-bob-matching node-regexp)
+ (setq compl (list (match-string-no-properties 1))))
+ ;; Now for the rest of the nodes.
+ (while (search-forward "\n\^_" nil t)
+ (forward-line 1)
+ (let ((beg (point)))
+ (forward-line 1)
+ (if (re-search-backward node-regexp beg t)
+ (setq compl
+ (cons (list (match-string-no-properties 1))
+ compl))))))))
+ (setq compl (cons '("*") (nreverse compl)))
+ (set (make-local-variable 'Info-current-file-completions) compl)
+ compl))
+
\f
(defun Info-restore-point (hl)
"If this node has been visited, restore the point value when we left."
(while (and (not give-up)
(or (null found)
(not (funcall isearch-filter-predicate beg-found found))))
- (let ((search-spaces-regexp
- (if (or (not isearch-mode) isearch-regexp)
- Info-search-whitespace-regexp)))
+ (let ((search-spaces-regexp Info-search-whitespace-regexp))
(if (if backward
(re-search-backward regexp bound t)
(re-search-forward regexp bound t))
(if (null Info-current-subfile)
(if isearch-mode
(signal 'search-failed (list regexp "end of manual"))
- (let ((search-spaces-regexp
- (if (or (not isearch-mode) isearch-regexp)
- Info-search-whitespace-regexp)))
+ (let ((search-spaces-regexp Info-search-whitespace-regexp))
(if backward
(re-search-backward regexp)
(re-search-forward regexp))))
(while (and (not give-up)
(or (null found)
(not (funcall isearch-filter-predicate beg-found found))))
- (let ((search-spaces-regexp
- (if (or (not isearch-mode) isearch-regexp)
- Info-search-whitespace-regexp)))
+ (let ((search-spaces-regexp Info-search-whitespace-regexp))
(if (if backward
(re-search-backward regexp nil t)
(re-search-forward regexp nil t))
(defun Info-isearch-search ()
(if Info-isearch-search
(lambda (string &optional bound noerror count)
- (Info-search
- (cond
- (isearch-word
- ;; Lax version of word search
- (let ((lax (not (or isearch-nonincremental
- (eq (length string)
- (length (isearch--state-string
- (car isearch-cmds))))))))
- (if (functionp isearch-word)
- (funcall isearch-word string lax)
- (word-search-regexp string lax))))
- (isearch-regexp string)
- (t (regexp-quote string)))
- bound noerror count
- (unless isearch-forward 'backward))
+ (let ((Info-search-whitespace-regexp
+ (if (if isearch-regexp
+ isearch-regexp-lax-whitespace
+ isearch-lax-whitespace)
+ search-whitespace-regexp)))
+ (Info-search
+ (cond
+ (isearch-word
+ ;; Lax version of word search
+ (let ((lax (not (or isearch-nonincremental
+ (eq (length string)
+ (length (isearch--state-string
+ (car isearch-cmds))))))))
+ (if (functionp isearch-word)
+ (funcall isearch-word string lax)
+ (word-search-regexp string lax))))
+ (isearch-regexp string)
+ (t (regexp-quote string)))
+ bound noerror count
+ (unless isearch-forward 'backward)))
(point))
(isearch-search-fun-default)))
(let ((backward (< found beg-found)))
(not
(or
- (and (not (eq search-invisible t))
+ (and (not search-invisible)
(if backward
(or (text-property-not-all found beg-found 'invisible nil)
(text-property-not-all found beg-found 'display nil))
(message "")
(nreverse nodes))))
-(defvar Info-toc-nodes nil
- "Alist of cached parent-children node information in visited Info files.
-Each element is (FILE (NODE-NAME PARENT SECTION CHILDREN) ...)
-where PARENT is the parent node extracted from the Up pointer,
-SECTION is the section name in the Top node where this node is placed,
-CHILDREN is a list of child nodes extracted from the node menu.")
-
(defun Info-toc-nodes (filename)
"Return a node list of Info FILENAME with parent-children information.
This information is cached in the variable `Info-toc-nodes' with the help
(while (re-search-forward pattern nil t)
(push (match-string-no-properties 1)
completions))
+ (setq completions (delete-dups completions))
;; Check subsequent nodes if applicable.
(or (and Info-complete-next-re
(setq nextnode (Info-extract-pointer "next" t))
(select-window (posn-window (event-start e))))
(Info-scroll-down)))
-(defun Info-next-reference (&optional recur)
- "Move cursor to the next cross-reference or menu item in the node."
- (interactive)
- (let ((pat "\\*note[ \n\t]+\\([^:]+\\):\\|^\\* .*:\\|[hf]t?tps?://")
- (old-pt (point))
- (case-fold-search t))
- (or (eobp) (forward-char 1))
- (or (re-search-forward pat nil t)
- (progn
- (goto-char (point-min))
- (or (re-search-forward pat nil t)
- (progn
- (goto-char old-pt)
- (user-error "No cross references in this node")))))
- (goto-char (or (match-beginning 1) (match-beginning 0)))
- (if (looking-at "\\* Menu:")
- (if recur
- (user-error "No cross references in this node")
- (Info-next-reference t))
- (if (looking-at "^\\* ")
- (forward-char 2)))))
-
-(defun Info-prev-reference (&optional recur)
- "Move cursor to the previous cross-reference or menu item in the node."
- (interactive)
- (let ((pat "\\*note[ \n\t]+\\([^:]+\\):\\|^\\* .*:\\|[hf]t?tps?://")
- (old-pt (point))
- (case-fold-search t))
- (or (re-search-backward pat nil t)
- (progn
- (goto-char (point-max))
- (or (re-search-backward pat nil t)
- (progn
- (goto-char old-pt)
- (user-error "No cross references in this node")))))
- (goto-char (or (match-beginning 1) (match-beginning 0)))
- (if (looking-at "\\* Menu:")
- (if recur
- (user-error "No cross references in this node")
- (Info-prev-reference t))
- (if (looking-at "^\\* ")
- (forward-char 2)))))
+(defun Info-next-reference (&optional recur count)
+ "Move cursor to the next cross-reference or menu item in the node.
+If COUNT is non-nil (interactively with a prefix arg), jump over
+COUNT cross-references."
+ (interactive "i\np")
+ (unless count
+ (setq count 1))
+ (if (< count 0)
+ (Info-prev-reference recur (- count))
+ (while (unless (zerop count) (setq count (1- count)))
+ (let ((pat "\\*note[ \n\t]+\\([^:]+\\):\\|^\\* .*:\\|[hf]t?tps?://")
+ (old-pt (point))
+ (case-fold-search t))
+ (or (eobp) (forward-char 1))
+ (or (re-search-forward pat nil t)
+ (progn
+ (goto-char (point-min))
+ (or (re-search-forward pat nil t)
+ (progn
+ (goto-char old-pt)
+ (user-error "No cross references in this node")))))
+ (goto-char (or (match-beginning 1) (match-beginning 0)))
+ (if (looking-at "\\* Menu:")
+ (if recur
+ (user-error "No cross references in this node")
+ (Info-next-reference t))
+ (if (looking-at "^\\* ")
+ (forward-char 2)))))))
+
+(defun Info-prev-reference (&optional recur count)
+ "Move cursor to the previous cross-reference or menu item in the node.
+If COUNT is non-nil (interactively with a prefix arg), jump over
+COUNT cross-references."
+ (interactive "i\np")
+ (unless count
+ (setq count 1))
+ (if (< count 0)
+ (Info-next-reference recur (- count))
+ (while (unless (zerop count) (setq count (1- count)))
+ (let ((pat "\\*note[ \n\t]+\\([^:]+\\):\\|^\\* .*:\\|[hf]t?tps?://")
+ (old-pt (point))
+ (case-fold-search t))
+ (or (re-search-backward pat nil t)
+ (progn
+ (goto-char (point-max))
+ (or (re-search-backward pat nil t)
+ (progn
+ (goto-char old-pt)
+ (user-error "No cross references in this node")))))
+ (goto-char (or (match-beginning 1) (match-beginning 0)))
+ (if (looking-at "\\* Menu:")
+ (if recur
+ (user-error "No cross references in this node")
+ (Info-prev-reference t))
+ (if (looking-at "^\\* ")
+ (forward-char 2)))))))
\f
-(defvar Info-index-nodes nil
- "Alist of cached index node names of visited Info files.
-Each element has the form (INFO-FILE INDEX-NODE-NAMES-LIST).")
-
(defun Info-index-nodes (&optional file)
"Return a list of names of all index nodes in Info FILE.
If FILE is omitted, it defaults to the current Info file.
(suppress-keymap map)
(define-key map "." 'beginning-of-buffer)
(define-key map " " 'Info-scroll-up)
+ (define-key map [?\S-\ ] 'Info-scroll-down)
(define-key map "\C-m" 'Info-follow-nearest-node)
(define-key map "\t" 'Info-next-reference)
(define-key map "\e\t" 'Info-prev-reference)
(unless Info-current-node
(user-error "No current Info node"))
(let ((node (if (stringp Info-current-file)
- (concat "(" (file-name-nondirectory Info-current-file) ") "
+ (concat "(" (file-name-sans-extension
+ (file-name-nondirectory Info-current-file))
+ ") "
Info-current-node))))
(if (zerop (prefix-numeric-value arg))
(setq node (concat "(info \"" node "\")")))
'Info-isearch-push-state)
(set (make-local-variable 'isearch-filter-predicate)
'Info-isearch-filter)
- (set (make-local-variable 'search-whitespace-regexp)
- Info-search-whitespace-regexp)
(set (make-local-variable 'revert-buffer-function)
'Info-revert-buffer-function)
(Info-set-mode-line)
map)
"Local keymap used within `e' command of Info.")
+(make-obsolete-variable 'Info-edit-map
+ "editing Info nodes by hand is not recommended."
+ "24.4")
+
;; Info-edit mode is suitable only for specially formatted data.
(put 'Info-edit-mode 'mode-class 'special)
(buffer-enable-undo (current-buffer))
(run-mode-hooks 'Info-edit-mode-hook))
+(make-obsolete 'Info-edit-mode
+ "editing Info nodes by hand is not recommended." "24.4")
+
(defun Info-edit ()
- "Edit the contents of this Info node.
-Allowed only if variable `Info-enable-edit' is non-nil."
+ "Edit the contents of this Info node."
(interactive)
- (or Info-enable-edit
- (error "Editing Info nodes is not enabled"))
(Info-edit-mode)
(message "%s" (substitute-command-keys
"Editing: Type \\<Info-edit-map>\\[Info-cease-edit] to return to info")))
+(put 'Info-edit 'disabled "Editing Info nodes by hand is not recommended.
+This feature will be removed in future.")
+
+(make-obsolete 'Info-edit
+ "editing Info nodes by hand is not recommended." "24.4")
+
(defun Info-cease-edit ()
"Finish editing Info node; switch back to Info proper."
(interactive)
(and (marker-position Info-tag-table-marker)
(buffer-modified-p)
(message "Tags may have changed. Use Info-tagify if necessary")))
+
+(make-obsolete 'Info-cease-edit
+ "editing Info nodes by hand is not recommended." "24.4")
\f
(defvar Info-file-list-for-emacs
'("ediff" "eudc" "forms" "gnus" "info" ("Info" . "info") ("mh" . "mh-e")
The `info-file' property of COMMAND says which Info manual to search.
If COMMAND has no property, the variable `Info-file-list-for-emacs'
defines heuristics for which Info manual to try.
-The locations are of the format used in `Info-history', i.e.
+The locations are of the format used in the variable `Info-history', i.e.
\(FILENAME NODENAME BUFFERPOS), where BUFFERPOS is the line number
in the first element of the returned list (which is treated specially in
`Info-goto-emacs-command-node'), and 0 for the rest elements of a list."
(if (not (equal node "Top")) node
(format "(%s)Top"
(if (stringp Info-current-file)
- (file-name-nondirectory Info-current-file)
+ (file-name-sans-extension
+ (file-name-nondirectory Info-current-file))
;; Some legacy code can still use a symbol.
Info-current-file)))))
(setq line (concat
((not (bobp))
;; Hide the punctuation at the end, too.
(skip-chars-backward " \t,")
- (put-text-property (point) header-end 'invisible t))))))
+ (put-text-property (point) header-end 'invisible t)
+ ;; Hide the suffix of the Info file name.
+ (beginning-of-line)
+ (if (re-search-forward
+ (format "File: %s\\([^,\n\t]+\\),"
+ (if (stringp Info-current-file)
+ (file-name-sans-extension
+ (file-name-nondirectory Info-current-file))
+ Info-current-file))
+ header-end t)
+ (put-text-property (match-beginning 1) (match-end 1)
+ 'invisible t)))))))
;; Fontify titles
(goto-char (point-min))
mouse-face highlight
help-echo "mouse-2: go to this URL"))))
+ ;; Hide empty lines at the end of the node.
+ (goto-char (point-max))
+ (skip-chars-backward "\n")
+ (when (< (point) (1- (point-max)))
+ (put-text-property (point) (1- (point-max)) 'invisible t))
+
(set-buffer-modified-p nil))))
\f
;;; Speedbar support:
;; current Info node.
(eval-when-compile (require 'speedbar))
+(declare-function speedbar-add-expansion-list "speedbar" (new-list))
+(declare-function speedbar-center-buffer-smartly "speedbar" ())
+(declare-function speedbar-change-expand-button-char "speedbar" (char))
+(declare-function speedbar-change-initial-expansion-list "speedbar" (new-default))
+(declare-function speedbar-delete-subblock "speedbar" (indent))
+(declare-function speedbar-make-specialized-keymap "speedbar" ())
+(declare-function speedbar-make-tag-line "speedbar"
+ (exp-button-type exp-button-char exp-button-function
+ exp-button-data tag-button tag-button-function
+ tag-button-data tag-button-face depth))
+
(defvar Info-speedbar-key-map nil
"Keymap used when in the Info display mode.")
(defun Info-bookmark-make-record ()
"This implements the `bookmark-make-record-function' type (which see)
for Info nodes."
- `(,Info-current-node
- ,@(bookmark-make-record-default 'no-file)
- (filename . ,Info-current-file)
- (info-node . ,Info-current-node)
- (handler . Info-bookmark-jump)))
+ (let* ((file (and (stringp Info-current-file)
+ (file-name-sans-extension
+ (file-name-nondirectory Info-current-file))))
+ (bookmark-name (if file
+ (concat "(" file ") " Info-current-node)
+ Info-current-node))
+ (defaults (delq nil (list bookmark-name file Info-current-node))))
+ `(,bookmark-name
+ ,@(bookmark-make-record-default 'no-file)
+ (filename . ,Info-current-file)
+ (info-node . ,Info-current-node)
+ (handler . Info-bookmark-jump)
+ (defaults . ,defaults))))
;;;###autoload
(defun Info-bookmark-jump (bmk)
\f
;;;###autoload
(defun info-display-manual (manual)
- "Go to Info buffer that displays MANUAL, creating it if none already exists."
- (interactive "sManual name: ")
+ "Display an Info buffer displaying MANUAL.
+If there is an existing Info buffer for MANUAL, display it.
+Otherwise, visit the manual in a new Info buffer."
+ (interactive
+ (list
+ (progn
+ (info-initialize)
+ (completing-read "Manual name: "
+ (info--manual-names)
+ nil t))))
(let ((blist (buffer-list))
(manual-re (concat "\\(/\\|\\`\\)" manual "\\(\\.\\|\\'\\)"))
(case-fold-search t)
(if found
(switch-to-buffer found)
(info-initialize)
- (info (Info-find-file manual)))))
+ (info (Info-find-file manual)
+ (generate-new-buffer-name "*info*")))))
+
+(defun info--manual-names ()
+ (let (names)
+ (dolist (buffer (buffer-list))
+ (with-current-buffer buffer
+ (and (eq major-mode 'Info-mode)
+ (stringp Info-current-file)
+ (not (string= (substring (buffer-name) 0 1) " "))
+ (push (file-name-sans-extension
+ (file-name-nondirectory Info-current-file))
+ names))))
+ (delete-dups (append (nreverse names)
+ (all-completions
+ ""
+ (apply-partially 'Info-read-node-name-2
+ Info-directory-list
+ (mapcar 'car Info-suffix-list)))))))
(provide 'info)