;;; info.el --- info package for Emacs
-;; Copyright (C) 1985, 86, 92, 93, 94, 95, 96, 97, 98, 99, 2000, 2001,
-;; 2002, 2003
+;; Copyright (C) 1985,86,92,93,94,95,96,97,98,99,2000,01,02,03,2004
;; Free Software Foundation, Inc.
;; Maintainer: FSF
(defvar Info-history nil
- "List of info nodes user has visited.
+ "Stack of info nodes user has visited.
Each element of list is a list (FILENAME NODENAME BUFFERPOS).")
+(defvar Info-history-list nil
+ "List of all info nodes user has visited.
+Each element of list is a list (FILENAME NODENAME).")
+
(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.
(put 'Info-enable-active-nodes 'risky-local-variable t)
(defface info-node
- '((((class color) (background light)) (:foreground "brown" :weight bold :slant italic))
- (((class color) (background dark)) (:foreground "white" :weight bold :slant italic))
- (t (:weight bold :slant italic)))
+ '((((class color) (background light)) :foreground "brown" :weight bold :slant italic)
+ (((class color) (background dark)) :foreground "white" :weight bold :slant italic)
+ (t :weight bold :slant italic))
"Face for Info node names."
:group 'info)
(defface info-menu-5
- '((((class color)) (:foreground "red1"))
- (t (:underline t)))
+ '((((class color)) :foreground "red1")
+ (t :underline t))
"Face for every third `*' in an Info menu."
:group 'info)
(defface info-xref
- '((((class color) (background light)) (:foreground "magenta4" :weight bold))
- (((class color) (background dark)) (:foreground "cyan" :weight bold))
- (t (:weight bold)))
+ '((((class color) (background light)) :foreground "blue" :underline t)
+ (((class color) (background dark)) :foreground "cyan" :underline t)
+ (t :underline t))
"Face for Info cross-references."
:group 'info)
+(defface info-xref-visited
+ '((t :inherit info-xref)
+ (((class color) (background light)) :foreground "magenta4")
+ (((class color) (background dark)) :foreground "magenta3")) ;"violet"?
+ "Face for visited Info cross-references."
+ :group 'info)
+
+(defcustom Info-fontify-visited-nodes t
+ "*Non-nil means to fontify visited nodes in a different face."
+ :version "21.4"
+ :type 'boolean
+ :group 'info)
+
(defcustom Info-fontify-maximum-menu-size 100000
"*Maximum size of menu to fontify if `font-lock-mode' is non-nil."
:type 'integer
:group 'info)
(defface info-header-xref
- '((t (:inherit info-xref)))
+ '((t :inherit info-xref))
"Face for Info cross-references in a node header."
:group 'info)
(defface info-header-node
- '((t (:inherit info-node)))
+ '((t :inherit info-node))
"Face for Info nodes in a node header."
:group 'info)
(defcustom Info-hide-note-references t
"*If non-nil, hide the tag and section reference in *note and * menu items.
-Also replaces the \"*note\" text with \"see\".
-If value is non-nil but not t, the reference section is still shown."
+If value is non-nil but not `hide', also replaces the \"*note\" with \"see\".
+If value is non-nil but not t or `hide', the reference section is still shown."
:version "21.4"
- :type '(choice (const :tag "No reformatting" nil)
+ :type '(choice (const :tag "No hiding" nil)
(const :tag "Replace tag and hide reference" t)
- (other :tag "Replace only tag" tag))
+ (const :tag "Hide tag and reference" hide)
+ (other :tag "Only replace tag" tag))
:group 'info)
(defcustom Info-refill-paragraphs nil
:type 'boolean
:group 'info)
+(defcustom Info-search-whitespace-regexp "\\(?:\\s-+\\)"
+ "*If non-nil, regular expression to match a sequence of whitespace chars.
+This applies to Info search for regular expressions.
+You might want to use something like \"[ \\t\\r\\n]+\" instead.
+In the Customization buffer, that is `[' followed by a space,
+a tab, a carriage return (control-M), a newline, and `]+'."
+ :type 'regexp
+ :group 'info)
+
(defcustom Info-mode-hook
;; Try to obey obsolete Info-fontify settings.
(unless (and (boundp 'Info-fontify) (null Info-fontify))
'(turn-on-font-lock))
- "Hooks run when `info-mode' is called."
+ "Hooks run when `Info-mode' is called."
:type 'hook
:group 'info)
+(defcustom Info-selection-hook nil
+ "Hooks run when `Info-select-node' is called."
+ :type 'hook
+ :group 'info)
+
+(defvar Info-edit-mode-hook nil
+ "Hooks run when `Info-edit-mode' is called.")
+
(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-index-alternatives nil
"List of possible matches for last `Info-index' command.")
+(defvar Info-point-loc nil
+ "Point location within a selected node.
+If string, the point is moved to the proper occurrence of the
+name of the followed cross reference within a selected node.
+If number, the point is moved to the corresponding line.")
+
(defvar Info-standalone nil
"Non-nil if Emacs was started solely as an Info browser.")
\f
;; version, so we should look there first. `Info-insert-dir'
;; currently expects to find `alternative' first on the list.
(cons alternative
- (reverse (cdr (reverse Info-default-directory-list)))))))
+ ;; Don't drop the last part, it might contain non-Emacs stuff.
+ ;; (reverse (cdr (reverse
+ Info-default-directory-list)))) ;; )))
(defun info-initialize ()
"Initialize `Info-directory-list', if that hasn't been done yet."
"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))))
- (let (same-window-buffer-names)
+ (let (same-window-buffer-names same-window-regexps)
(info file)))
-;;;###autoload (add-hook 'same-window-buffer-names "*info*")
+;;;###autoload (add-hook 'same-window-regexps "\\*info\\*\\(\\|<[0-9]+>\\)")
+;;;###autoload (put 'info 'info-file "emacs")
;;;###autoload
-(defun info (&optional file)
+(defun info (&optional file buffer)
"Enter Info, the documentation browser.
Optional argument FILE specifies the file to examine;
the default is the top-level directory of Info.
Called from a program, FILE may specify an Info node of the form
`(FILENAME)NODENAME'.
+Optional argument BUFFER specifies the Info buffer name;
+the default buffer name is *info*. If BUFFER exists,
+just switch to BUFFER. Otherwise, create a new buffer
+with the top-level Info directory.
-In interactive use, a prefix argument directs this command
-to read a file name from the minibuffer.
+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.
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'
in all the directories in that path."
- (interactive (if current-prefix-arg
- (list (read-file-name "Info file name: " nil nil t))))
+ (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))))
+ (pop-to-buffer (or buffer "*info*"))
+ (if (and buffer (not (eq major-mode 'Info-mode)))
+ (Info-mode))
(if file
- (progn
- (pop-to-buffer "*info*")
- ;; If argument already contains parentheses, don't add another set
- ;; since the argument will then be parsed improperly. This also
- ;; has the added benefit of allowing node names to be included
- ;; following the parenthesized filename.
- (if (and (stringp file) (string-match "(.*)" file))
- (Info-goto-node file)
- (Info-goto-node (concat "(" file ")"))))
- (if (get-buffer "*info*")
- (pop-to-buffer "*info*")
- (Info-directory))))
+ ;; If argument already contains parentheses, don't add another set
+ ;; since the argument will then be parsed improperly. This also
+ ;; has the added benefit of allowing node names to be included
+ ;; following the parenthesized filename.
+ (if (and (stringp file) (string-match "(.*)" file))
+ (Info-goto-node file)
+ (Info-goto-node (concat "(" file ")")))
+ (if (zerop (buffer-size))
+ (Info-directory))))
;;;###autoload
(defun info-emacs-manual ()
(forward-line 1) ; does the line after delimiter match REGEXP?
(re-search-backward regexp beg t))))
-(defun Info-find-node (filename nodename &optional no-going-back)
- "Go to an info node specified as separate FILENAME and NODENAME.
-NO-GOING-BACK is non-nil if recovering from an error in this function;
-it says do not attempt further (recursive) error recovery."
- (info-initialize)
+(defun Info-find-file (filename &optional noerror)
+ "Return expanded FILENAME, or t, if FILENAME is \"dir\".
+Optional second argument NOERROR, if t, means if file is not found
+just return nil (no error)."
;; Convert filename to lower case if not found as specified.
;; Expand it.
(if (stringp filename)
(let (temp temp-downcase found)
(setq filename (substitute-in-file-name filename))
- (if (string= (downcase filename) "dir")
- (setq found t)
- (let ((dirs (if (string-match "^\\./" filename)
+ (cond
+ ((string= (downcase filename) "dir")
+ (setq found t))
+ ((string= filename "apropos")
+ (setq found 'apropos))
+ ((string= filename "history")
+ (setq found 'history))
+ ((string= filename "toc")
+ (setq found 'toc))
+ (t
+ (let ((dirs (if (string-match "^\\./" filename)
;; If specified name starts with `./'
;; then just try current directory.
'("./")
temp (car (car suffix-list)) nil)))
(setq found temp)))
(setq suffix-list (cdr suffix-list))))
- (setq dirs (cdr dirs)))))
+ (setq dirs (cdr dirs))))))
(if found
(setq filename found)
- (error "Info file %s does not exist" filename))))
+ (if noerror
+ (setq filename nil)
+ (error "Info file %s does not exist" filename)))
+ filename)))
+
+(defun Info-find-node (filename nodename &optional no-going-back)
+ "Go to an info node specified as separate FILENAME and NODENAME.
+NO-GOING-BACK is non-nil if recovering from an error in this function;
+it says do not attempt further (recursive) error recovery."
+ (info-initialize)
+ (setq filename (Info-find-file filename))
;; Record the node we are leaving.
(if (and Info-current-file (not no-going-back))
(setq Info-history
Info-current-file-completions nil
buffer-file-name nil)
(erase-buffer)
- (if (eq filename t)
- (Info-insert-dir)
+ (cond
+ ((eq filename t)
+ (Info-insert-dir))
+ ((eq filename 'apropos)
+ (insert-buffer-substring " *info-apropos*"))
+ ((eq filename 'history)
+ (insert-buffer-substring " *info-history*"))
+ ((eq filename 'toc)
+ (insert-buffer-substring " *info-toc*"))
+ (t
(info-insert-file-contents filename nil)
- (setq default-directory (file-name-directory filename)))
+ (setq default-directory (file-name-directory filename))))
(set-buffer-modified-p nil)
;; See whether file has a tag table. Record the location if yes.
(goto-char (point-max))
(set-marker Info-tag-table-marker pos)))
(set-marker Info-tag-table-marker nil))
(setq Info-current-file
- (if (eq filename t) "dir" filename))))
+ (cond
+ ((eq filename t) "dir")
+ ((eq filename 'apropos) "apropos")
+ ((eq filename 'history) "history")
+ ((eq filename 'toc) "toc")
+ (t filename)))
+ ))
;; Use string-equal, not equal, to ignore text props.
(if (string-equal nodename "*")
(progn (setq Info-current-node nodename)
(let ((pos (Info-find-node-in-buffer regexp)))
(when pos
(goto-char pos)
- (throw 'foo t))
- (error "No such anchor in tag table or node in tag table or file: %s"
- nodename)))
+ (throw 'foo t)))
+
+ (when (string-match "\\([^.]+\\)\\." nodename)
+ (let (Info-point-loc)
+ (Info-find-node-2
+ filename (match-string 1 nodename) no-going-back))
+ (widen)
+ (throw 'foo t))
+
+ ;; No such anchor in tag table or node in tag table or file
+ (error "No such node or anchor: %s" nodename))
(Info-select-node)
- (goto-char (or anchorpos (point-min))))))
+ (goto-char (point-min))
+ (cond (anchorpos
+ (let ((new-history (list Info-current-file
+ (substring-no-properties nodename))))
+ ;; Add anchors to the history too
+ (setq Info-history-list
+ (cons new-history
+ (delete new-history Info-history-list))))
+ (goto-char anchorpos))
+ ((numberp Info-point-loc)
+ (forward-line (1- Info-point-loc))
+ (setq Info-point-loc nil))
+ ((stringp Info-point-loc)
+ (Info-find-index-name Info-point-loc)
+ (setq Info-point-loc nil))))))
;; If we did not finish finding the specified node,
;; go back to the previous one.
(or Info-current-node no-going-back (null Info-history)
nodename end)
(re-search-backward "^\^_")
(search-forward "Node: ")
- (setq nodename
- (and (looking-at (Info-following-node-name-re))
- (match-string 1)))
+ (setq nodename (Info-following-node-name))
(search-forward "\n\^_" nil 'move)
(beginning-of-line)
(setq end (point))
;; into the menu in the like-named node in the main buffer.
(apply 'insert-buffer-substring (cdr node))))
(Info-dir-remove-duplicates)
- ;; Kill all the buffers we just made.
- (mapc 'kill-buffer buffers)
+ ;; Kill all the buffers we just made, including the special one excised.
+ (mapc 'kill-buffer (cons buffer buffers))
(goto-char (point-min))
(if problems
(message "Composing main Info directory...problems encountered, see `*Messages*'")
(goto-char (point-min))
;; Remove duplicate headings in the same menu.
(while (search-forward "\n* Menu:" nil t)
- (setq limit (save-excursion (search-forward "\n\1f" nil t)))
+ (setq limit (save-excursion (search-forward "\n\^_" nil t)))
;; Look for the next heading to unify.
(while (re-search-forward "^\\(\\w.*\\)\n\\*" limit t)
(let ((name (match-string 1))
(image (if (file-exists-p image-file)
(create-image image-file)
"[broken image]")))
- (message "Found image: %S" image-file)
(if (not (get-text-property start 'display))
(add-text-properties
start (point) `(display ,image rear-nonsticky (display)))))))
(set-buffer-modified-p nil)))
+;; Texinfo 4.7 adds cookies of the form ^@^H[NAME CONTENTS ^@^H].
+;; Hide any construct of the general form ^@[^@-^_][ ... ^@[^@-^_]],
+;; including one optional trailing newline.
+(defun Info-hide-cookies-node ()
+ "Hide unrecognised cookies in current node."
+ (save-excursion
+ (let ((inhibit-read-only t)
+ (case-fold-search t))
+ (goto-char (point-min))
+ (while (re-search-forward
+ "\\(\0[\0-\37][[][^\0]*\0[\0-\37][]]\n?\\)"
+ nil t)
+ (let* ((start (match-beginning 1)))
+ (if (not (get-text-property start 'invisible))
+ (put-text-property start (point) 'invisible t)))))
+ (set-buffer-modified-p nil)))
+
(defun Info-select-node ()
"Select the info node that point is in."
;; Bind this in case the user sets it to nil.
(read (current-buffer))))))
(point-max)))
(if Info-enable-active-nodes (eval active-expression))
- (Info-fontify-node)
+ ;; Add a new unique history item to full history list
+ (let ((new-history (list Info-current-file Info-current-node)))
+ (setq Info-history-list
+ (cons new-history (delete new-history Info-history-list))))
+ (if (not (eq Info-fontify-maximum-menu-size nil))
+ (Info-fontify-node))
(Info-display-images-node)
+ (Info-hide-cookies-node)
(run-hooks 'Info-selection-hook)))))
(defun Info-set-mode-line ()
;; Go to an info node specified with a filename-and-nodename string
;; of the sort that is found in pointers in nodes.
+;;;###autoload
(defun Info-goto-node (nodename &optional fork)
"Go to info node named NODENAME. Give just NODENAME or (FILENAME)NODENAME.
If NODENAME is of the form (FILENAME)NODENAME, the node is in the Info file
""
(match-string 2 nodename))
nodename (match-string 3 nodename))
- (let ((trim (string-match "\\s *\\'" filename)))
+ (let ((trim (string-match "\\s +\\'" filename)))
(if trim (setq filename (substring filename 0 trim))))
- (let ((trim (string-match "\\s *\\'" nodename)))
+ (let ((trim (string-match "\\s +\\'" nodename)))
(if trim (setq nodename (substring nodename 0 trim))))
(if transient-mark-mode (deactivate-mark))
(Info-find-node (if (equal filename "") nil filename)
(defvar Info-search-history nil
"The history list for `Info-search'.")
-(defun Info-search (regexp)
- "Search for REGEXP, starting from point, and select node it's found in."
+(defvar Info-search-case-fold nil
+ "The value of `case-fold-search' from previous `Info-search' command.")
+
+(defun Info-search (regexp &optional bound noerror count direction)
+ "Search for REGEXP, starting from point, and select node it's found in.
+If DIRECTION is `backward', search in the reverse direction."
(interactive (list (read-string
(if Info-search-history
- (format "Regexp search (default `%s'): "
+ (format "Regexp search%s (default `%s'): "
+ (if case-fold-search "" " case-sensitively")
(car Info-search-history))
- "Regexp search: ")
+ (format "Regexp search%s: "
+ (if case-fold-search "" " case-sensitively")))
nil 'Info-search-history)))
(when transient-mark-mode
(deactivate-mark))
(setq regexp (car Info-search-history)))
(when regexp
(let (found beg-found give-up
+ (backward (eq direction 'backward))
(onode Info-current-node)
(ofile Info-current-file)
(opoint (point))
+ (opoint-min (point-min))
+ (opoint-max (point-max))
(ostart (window-start))
(osubfile Info-current-subfile))
+ (when Info-search-whitespace-regexp
+ (setq regexp
+ (mapconcat 'identity (split-string regexp "[ \t\n]+")
+ Info-search-whitespace-regexp)))
+ (setq Info-search-case-fold case-fold-search)
(save-excursion
(save-restriction
(widen)
(while (and (not give-up)
(or (null found)
- (isearch-range-invisible beg-found found)))
- (if (re-search-forward regexp nil t)
- (setq found (point) beg-found (match-beginning 0))
+ (if backward
+ (isearch-range-invisible found beg-found)
+ (isearch-range-invisible beg-found found))))
+ (if (if backward
+ (re-search-backward regexp bound t)
+ (re-search-forward regexp bound t))
+ (setq found (point) beg-found (if backward (match-end 0)
+ (match-beginning 0)))
(setq give-up t)))))
;; If no subfiles, give error now.
(if give-up
(if (null Info-current-subfile)
- (re-search-forward regexp)
+ (if backward
+ (re-search-backward regexp)
+ (re-search-forward regexp))
(setq found nil)))
- (unless found
+ (unless (or found bound)
(unwind-protect
;; Try other subfiles.
(let ((list ()))
;; Find the subfile we just searched.
(search-forward (concat "\n" osubfile ": "))
;; Skip that one.
- (forward-line 1)
+ (forward-line (if backward 0 1))
;; Make a list of all following subfiles.
;; Each elt has the form (VIRT-POSITION . SUBFILENAME).
- (while (not (eobp))
- (re-search-forward "\\(^.*\\): [0-9]+$")
+ (while (not (if backward (bobp) (eobp)))
+ (if backward
+ (re-search-backward "\\(^.*\\): [0-9]+$")
+ (re-search-forward "\\(^.*\\): [0-9]+$"))
(goto-char (+ (match-end 1) 2))
(setq list (cons (cons (+ (point-min)
(read (current-buffer)))
(match-string-no-properties 1))
list))
- (goto-char (1+ (match-end 0))))
+ (goto-char (if backward
+ (1- (match-beginning 0))
+ (1+ (match-end 0)))))
;; Put in forward order
(setq list (nreverse list))))
(while list
(message "Searching subfile %s..." (cdr (car list)))
(Info-read-subfile (car (car list)))
+ (if backward (goto-char (point-max)))
(setq list (cdr list))
(setq give-up nil found nil)
(while (and (not give-up)
(or (null found)
- (isearch-range-invisible beg-found found)))
- (if (re-search-forward regexp nil t)
- (setq found (point) beg-found (match-beginning 0))
+ (if backward
+ (isearch-range-invisible found beg-found)
+ (isearch-range-invisible beg-found found))))
+ (if (if backward
+ (re-search-backward regexp nil t)
+ (re-search-forward regexp nil t))
+ (setq found (point) beg-found (if backward (match-end 0)
+ (match-beginning 0)))
(setq give-up t)))
(if give-up
(setq found nil))
(goto-char opoint)
(Info-select-node)
(set-window-start (selected-window) ostart)))))
- (widen)
- (goto-char found)
- (Info-select-node)
+
+ (if (and (string= osubfile Info-current-subfile)
+ (> found opoint-min)
+ (< found opoint-max))
+ ;; Search landed in the same node
+ (goto-char found)
+ (widen)
+ (goto-char found)
+ (save-match-data (Info-select-node)))
+
;; Use string-equal, not equal, to ignore text props.
(or (and (string-equal onode Info-current-node)
(equal ofile Info-current-file))
+ (and isearch-mode isearch-wrapped (eq opoint opoint-min))
(setq Info-history (cons (list ofile onode opoint)
Info-history))))))
+
+(defun Info-search-case-sensitively ()
+ "Search for a regexp case-sensitively."
+ (interactive)
+ (let ((case-fold-search nil))
+ (call-interactively 'Info-search)))
+
+(defun Info-search-next ()
+ "Search for next regexp from a previous `Info-search' command."
+ (interactive)
+ (let ((case-fold-search Info-search-case-fold))
+ (if Info-search-history
+ (Info-search (car Info-search-history))
+ (call-interactively 'Info-search))))
+
+(defun Info-search-backward (regexp &optional bound noerror count)
+ "Search for REGEXP in the reverse direction."
+ (interactive (list (read-string
+ (if Info-search-history
+ (format "Regexp search%s backward (default `%s'): "
+ (if case-fold-search "" " case-sensitively")
+ (car Info-search-history))
+ (format "Regexp search%s backward: "
+ (if case-fold-search "" " case-sensitively")))
+ nil 'Info-search-history)))
+ (Info-search regexp bound noerror count 'backward))
+
+(defun Info-isearch-search ()
+ (cond
+ (isearch-word
+ (if isearch-forward 'word-search-forward 'word-search-backward))
+ (isearch-regexp
+ (lambda (regexp bound noerror)
+ (condition-case nil
+ (progn
+ (Info-search regexp bound noerror nil
+ (unless isearch-forward 'backward))
+ (point))
+ (error nil))))
+ (t
+ (if isearch-forward 'search-forward 'search-backward))))
+
+(defun Info-isearch-wrap ()
+ (if isearch-regexp
+ (if isearch-forward (Info-top-node) (Info-final-node))
+ (goto-char (if isearch-forward (point-min) (point-max)))))
+
+(defun Info-isearch-push-state ()
+ `(lambda (cmd)
+ (Info-isearch-pop-state cmd ,Info-current-file ,Info-current-node)))
+
+(defun Info-isearch-pop-state (cmd file node)
+ (or (and (string= Info-current-file file)
+ (string= Info-current-node node))
+ (progn (Info-find-node file node) (sit-for 0))))
+
\f
(defun Info-extract-pointer (name &optional errorname)
"Extract the value of the node-pointer named NAME.
"Go to the superior node of this node.
If SAME-FILE is non-nil, do not move to a different Info file."
(interactive)
- (let ((node (Info-extract-pointer "up")))
+ (let ((old-node Info-current-node)
+ (old-file Info-current-file)
+ (node (Info-extract-pointer "up")) p)
(and (or same-file (not (stringp Info-current-file)))
(string-match "^(" node)
(error "Up node is in another Info file"))
- (Info-goto-node node))
- (Info-restore-point Info-history))
+ (Info-goto-node node)
+ (setq p (point))
+ (goto-char (point-min))
+ (if (and (search-forward "\n* Menu:" nil t)
+ (re-search-forward
+ (if (string-equal old-node "Top")
+ (concat "\n\\*[^:]+: +(" (file-name-nondirectory old-file) ")")
+ (concat "\n\\* +\\(" (regexp-quote old-node)
+ ":\\|[^:]+: +" (regexp-quote old-node) "\\)"))
+ nil t))
+ (beginning-of-line)
+ (goto-char p)
+ (Info-restore-point Info-history))))
(defun Info-last ()
"Go back to the last node visited."
(interactive)
(Info-find-node "dir" "top"))
\f
-(defun Info-follow-reference (footnotename)
+(defun Info-history ()
+ "Go to a node with a menu of visited nodes."
+ (interactive)
+ (let ((curr-file Info-current-file)
+ (curr-node Info-current-node)
+ p)
+ (with-current-buffer (get-buffer-create " *info-history*")
+ (let ((inhibit-read-only t))
+ (erase-buffer)
+ (goto-char (point-min))
+ (insert "\n\^_\nFile: history, Node: Top, Up: (dir)\n\n")
+ (insert "Recently Visited Nodes\n**********************\n\n")
+ (insert "* Menu:\n\n")
+ (let ((hl (delete '("history" "Top") Info-history-list)))
+ (while hl
+ (let ((file (nth 0 (car hl)))
+ (node (nth 1 (car hl))))
+ (if (and (string-equal file curr-file)
+ (string-equal node curr-node))
+ (setq p (point)))
+ (insert "* " node ": (" (file-name-nondirectory file)
+ ")" node ".\n"))
+ (setq hl (cdr hl))))))
+ (Info-find-node "history" "Top")
+ (goto-char (or p (point-min)))))
+
+(defun Info-toc ()
+ "Go to a node with table of contents of the current Info file.
+Table of contents is created from the tree structure of menus."
+ (interactive)
+ (let ((curr-file (substring-no-properties Info-current-file))
+ (curr-node (substring-no-properties Info-current-node))
+ p)
+ (with-current-buffer (get-buffer-create " *info-toc*")
+ (let ((inhibit-read-only t)
+ (node-list (Info-build-toc curr-file)))
+ (erase-buffer)
+ (goto-char (point-min))
+ (insert "\n\^_\nFile: toc, Node: Top, Up: (dir)\n\n")
+ (insert "Table of Contents\n*****************\n\n")
+ (insert "*Note Top: (" curr-file ")Top.\n")
+ (Info-insert-toc
+ (nth 2 (assoc "Top" node-list)) ; get Top nodes
+ node-list 0 curr-file))
+ (if (not (bobp))
+ (let ((Info-hide-note-references 'hide)
+ (Info-fontify-visited-nodes nil))
+ (Info-mode)
+ (setq Info-current-file "toc" Info-current-node "Top")
+ (goto-char (point-min))
+ (narrow-to-region (or (re-search-forward "\n[\^_\f]\n" nil t)
+ (point-min))
+ (point-max))
+ (Info-fontify-node)
+ (widen)))
+ (goto-char (point-min))
+ (if (setq p (search-forward (concat "*Note " curr-node ":") nil t))
+ (setq p (- p (length curr-node) 2))))
+ (Info-find-node "toc" "Top")
+ (goto-char (or p (point-min)))))
+
+(defun Info-insert-toc (nodes node-list level curr-file)
+ "Insert table of contents with references to nodes."
+ (let ((section "Top"))
+ (while nodes
+ (let ((node (assoc (car nodes) node-list)))
+ (unless (member (nth 1 node) (list nil section))
+ (insert (setq section (nth 1 node)) "\n"))
+ (insert (make-string level ?\t))
+ (insert "*Note " (car nodes) ": (" curr-file ")" (car nodes) ".\n")
+ (Info-insert-toc (nth 2 node) node-list (1+ level) curr-file)
+ (setq nodes (cdr nodes))))))
+
+(defun Info-build-toc (file)
+ "Build table of contents from menus of Info FILE and its subfiles."
+ (with-temp-buffer
+ (let* ((file (and (stringp file) (Info-find-file file)))
+ (default-directory (or (and (stringp file)
+ (file-name-directory file))
+ default-directory))
+ (main-file (and (stringp file) file))
+ (sections '(("Top" "Top")))
+ nodes subfiles)
+ (while (or main-file subfiles)
+ (or main-file (message "Searching subfile %s..." (car subfiles)))
+ (erase-buffer)
+ (info-insert-file-contents (or main-file (car subfiles)))
+ (goto-char (point-min))
+ (while (and (search-forward "\n\^_\nFile:" nil 'move)
+ (search-forward "Node: " nil 'move))
+ (let ((nodename (substring-no-properties (Info-following-node-name)))
+ (bound (- (or (save-excursion (search-forward "\n\^_" nil t))
+ (point-max)) 2))
+ (section "Top")
+ menu-items)
+ (when (and (not (Info-index-node nodename file))
+ (re-search-forward "^\\* Menu:" bound t))
+ (forward-line 1)
+ (beginning-of-line)
+ (setq bound (or (and (equal nodename "Top")
+ (save-excursion
+ (re-search-forward
+ "^[ \t-]*The Detailed Node Listing" nil t)))
+ bound))
+ (while (< (point) bound)
+ (cond
+ ;; Menu item line
+ ((looking-at "^\\* +[^:]+:")
+ (beginning-of-line)
+ (forward-char 2)
+ (let ((menu-node-name (substring-no-properties
+ (Info-extract-menu-node-name))))
+ (setq menu-items (cons menu-node-name menu-items))
+ (if (equal nodename "Top")
+ (setq sections
+ (cons (list menu-node-name section) sections)))))
+ ;; Other non-empty strings in the Top node are section names
+ ((and (equal nodename "Top")
+ (looking-at "^\\([^ \t\n*=.-][^:\n]*\\)"))
+ (setq section (match-string-no-properties 1))))
+ (forward-line 1)
+ (beginning-of-line)))
+ (setq nodes (cons (list nodename
+ (cadr (assoc nodename sections))
+ (nreverse menu-items))
+ nodes))
+ (goto-char bound)))
+ (if main-file
+ (save-excursion
+ (goto-char (point-min))
+ (if (search-forward "\n\^_\nIndirect:" nil t)
+ (let ((bound (save-excursion (search-forward "\n\^_" nil t))))
+ (while (re-search-forward "^\\(.*\\): [0-9]+$" bound t)
+ (setq subfiles (cons (match-string-no-properties 1)
+ subfiles)))))
+ (setq subfiles (nreverse subfiles)
+ main-file nil))
+ (setq subfiles (cdr subfiles))))
+ (message "")
+ (nreverse nodes))))
+\f
+(defun Info-follow-reference (footnotename &optional fork)
"Follow cross reference named FOOTNOTENAME to the node it refers to.
-FOOTNOTENAME may be an abbreviation of the reference name."
+FOOTNOTENAME may be an abbreviation of the reference name.
+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."
(interactive
(let ((completion-ignore-case t)
(case-fold-search t)
(setq bol (point))
(goto-char (point-min))
- (while (re-search-forward "\\*note[ \n\t]*\\([^:]*\\):" nil t)
+ (while (re-search-forward "\\*note[ \n\t]+\\([^:]*\\):" nil t)
(setq str (match-string-no-properties 1))
;; See if this one should be the default.
(and (null default)
"Follow reference named: ")
completions nil t)))
(list (if (equal input "")
- default input)))
+ default input) current-prefix-arg))
(error "No cross-references in this node"))))
(unless footnotename
(setq str (concat (substring str 0 i) "[ \t\n]+" (substring str (1+ i))))
(setq i (+ i 6)))
(save-excursion
- (goto-char (point-min))
- (or (re-search-forward str nil t)
- (error "No cross-reference named %s" footnotename))
- (goto-char (+ (match-beginning 0) 5))
- (setq target
- (Info-extract-menu-node-name t)))
+ ;; Move point to the beginning of reference if point is on reference
+ (or (looking-at "\\*note[ \n\t]+")
+ (and (looking-back "\\*note[ \n\t]+")
+ (goto-char (match-beginning 0)))
+ (if (and (save-excursion
+ (goto-char (+ (point) 5)) ; skip a possible *note
+ (re-search-backward "\\*note[ \n\t]+" nil t)
+ (looking-at str))
+ (<= (point) (match-end 0)))
+ (goto-char (match-beginning 0))))
+ ;; Go to the reference closest to point
+ (let ((next-ref (save-excursion (and (re-search-forward str nil t)
+ (+ (match-beginning 0) 5))))
+ (prev-ref (save-excursion (and (re-search-backward str nil t)
+ (+ (match-beginning 0) 5)))))
+ (goto-char (cond ((and next-ref prev-ref)
+ (if (< (abs (- next-ref (point)))
+ (abs (- prev-ref (point))))
+ next-ref prev-ref))
+ ((or next-ref prev-ref))
+ ((error "No cross-reference named %s" footnotename))))
+ (setq target (Info-extract-menu-node-name t))))
(while (setq i (string-match "[ \t\n]+" target i))
(setq target (concat (substring target 0 i) " "
(substring target (match-end 0))))
(setq i (+ i 1)))
- (Info-goto-node target)))
+ (Info-goto-node target fork)))
(defconst Info-menu-entry-name-re "\\(?:[^:]\\|:[^:,.;() \t\n]\\)*"
;; We allow newline because this is also used in Info-follow-reference,
Because of ambiguities, this should be concatenated with something like
`:' and `Info-following-node-name-re'.")
-(defun Info-extract-menu-node-name (&optional multi-line)
+(defun Info-extract-menu-node-name (&optional multi-line index-node)
(skip-chars-forward " \t\n")
(when (looking-at (concat Info-menu-entry-name-re ":\\(:\\|"
(Info-following-node-name-re
- (if multi-line "^.,\t" "^.,\t\n")) "\\)"))
+ (cond
+ (index-node "^,\t\n")
+ (multi-line "^.,\t")
+ (t "^.,\t\n")))
+ "\\)"
+ (if index-node
+ "\\.\\(?:[ \t\n]+(line +\\([0-9]+\\))\\)?"
+ "")))
+ (if index-node
+ (setq Info-point-loc
+ (if (match-beginning 5)
+ (string-to-number (match-string 5))
+ (buffer-substring (match-beginning 0) (1- (match-beginning 1)))))
+;;; Comment out the next line to use names of cross-references:
+;;; (setq Info-point-loc
+;;; (buffer-substring (match-beginning 0) (1- (match-beginning 1))))
+ )
(replace-regexp-in-string
"[ \n]+" " "
(or (match-string 2)
(defvar Info-complete-menu-buffer)
(defvar Info-complete-next-re nil)
+(defvar Info-complete-nodes nil)
(defvar Info-complete-cache nil)
(defconst Info-node-spec-re
;; - `Info-complete-next-re' which, if non-nil, indicates that we should
;; also look for menu items in subsequent nodes as long as those
;; nodes' names match `Info-complete-next-re'. This feature is currently
+ ;; not used.
+ ;; - `Info-complete-nodes' which, if non-nil, indicates that we should
+ ;; also look for menu items in these nodes. This feature is currently
;; only used for completion in Info-index.
;; Note that `Info-complete-menu-buffer' could be current already,
(if (and (equal (nth 0 Info-complete-cache) Info-current-file)
(equal (nth 1 Info-complete-cache) Info-current-node)
(equal (nth 2 Info-complete-cache) Info-complete-next-re)
+ (equal (nth 5 Info-complete-cache) Info-complete-nodes)
(let ((prev (nth 3 Info-complete-cache)))
(eq t (compare-strings string 0 (length prev)
prev 0 nil t))))
(push (match-string-no-properties 1)
completions))
;; Check subsequent nodes if applicable.
- (and Info-complete-next-re
- (setq nextnode (Info-extract-pointer "next" t))
- (string-match Info-complete-next-re nextnode)))
+ (or (and Info-complete-next-re
+ (setq nextnode (Info-extract-pointer "next" t))
+ (string-match Info-complete-next-re nextnode))
+ (and Info-complete-nodes
+ (setq Info-complete-nodes (cdr Info-complete-nodes)
+ nextnode (car Info-complete-nodes)))))
(Info-goto-node nextnode))
;; Go back to the start node (for the next completion).
(unless (equal Info-current-node orignode)
;; Update the cache.
(set (make-local-variable 'Info-complete-cache)
(list Info-current-file Info-current-node
- Info-complete-next-re string completions)))
+ Info-complete-next-re string completions
+ Info-complete-nodes)))
(if action
(all-completions string completions predicate)
(try-completion string completions predicate)))))))
(error "No such item in menu"))
(beginning-of-line)
(forward-char 2)
- (Info-extract-menu-node-name)))))
+ (Info-extract-menu-node-name nil (Info-index-node))))))
;; If COUNT is nil, use the last item in the menu.
(defun Info-extract-menu-counting (count)
(error "Too few items in menu"))
(while (search-forward "\n* " nil t)
nil))
- (Info-extract-menu-node-name)))))
+ (Info-extract-menu-node-name nil (Info-index-node))))))
(defun Info-nth-menu-item ()
"Go to the node of the Nth menu item.
;; move forward until we can't go any farther.
(while (Info-forward-node t t) nil)
;; Then keep moving down to last subnode, unless we reach an index.
- (while (and (not (string-match "\\<index\\>" Info-current-node))
+ (while (and (not (Info-index-node))
(save-excursion (search-forward "\n* Menu:" nil t)))
(Info-goto-node (Info-extract-menu-counting nil)))))
;; 3. next node is up and next
(cond ((and (not not-down)
(save-excursion (search-forward "\n* menu:" nil t))
- (not (string-match "\\<index\\>" Info-current-node)))
+ (not (Info-index-node)))
(Info-goto-node (Info-extract-menu-counting 1))
t)
((save-excursion (search-backward "next:" nil t))
;; go down to find the last subnode*.
(Info-prev)
(let (Info-history)
- (while (and (not (string-match "\\<index\\>" Info-current-node))
+ (while (and (not (Info-index-node))
(save-excursion (search-forward "\n* Menu:" nil t)))
(Info-goto-node (Info-extract-menu-counting nil)))))
(t
(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]*\\([^:]*\\):\\|^\\* .*:")
+ (let ((pat "\\*note[ \n\t]+\\([^:]+\\):\\|^\\* .*:\\|[hf]t?tp://")
(old-pt (point))
(case-fold-search t))
(or (eobp) (forward-char 1))
(progn
(goto-char old-pt)
(error "No cross references in this node")))))
- (goto-char (match-beginning 0))
+ (goto-char (or (match-beginning 1) (match-beginning 0)))
(if (looking-at "\\* Menu:")
(if recur
(error "No cross references in this node")
(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]*\\([^:]*\\):\\|^\\* .*:")
+ (let ((pat "\\*note[ \n\t]+\\([^:]+\\):\\|^\\* .*:\\|[hf]t?tp://")
(old-pt (point))
(case-fold-search t))
(or (re-search-backward pat nil t)
(progn
(goto-char old-pt)
(error "No cross references in this node")))))
- (goto-char (match-beginning 0))
+ (goto-char (or (match-beginning 1) (match-beginning 0)))
(if (looking-at "\\* Menu:")
(if recur
(error "No cross references in this node")
(Info-prev-reference t)))))
+\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.
+First look in a list of cached index node names. Then scan Info
+file and its subfiles for nodes with the index cookie. Then try
+to find index nodes starting from the first node in the top level
+menu whose name contains the word \"Index\", plus any immediately
+following nodes whose names also contain the word \"Index\"."
+ (or file (setq file Info-current-file))
+ (or (assoc file Info-index-nodes)
+ ;; Skip virtual Info files
+ (and (member file '("dir" "history" "toc" "apropos"))
+ (setq Info-index-nodes (cons (cons file nil) Info-index-nodes)))
+ (not (stringp file))
+ ;; Find nodes with index cookie
+ (let* ((default-directory (or (and (stringp file)
+ (file-name-directory
+ (setq file (Info-find-file file))))
+ default-directory))
+ Info-history Info-history-list Info-fontify-maximum-menu-size
+ (main-file file) subfiles nodes node)
+ (condition-case nil
+ (with-temp-buffer
+ (while (or main-file subfiles)
+ (erase-buffer)
+ (info-insert-file-contents (or main-file (car subfiles)))
+ (goto-char (point-min))
+ (while (search-forward "\0\b[index\0\b]" nil 'move)
+ (save-excursion
+ (re-search-backward "^\^_")
+ (search-forward "Node: ")
+ (setq nodes (cons (Info-following-node-name) nodes))))
+ (if main-file
+ (save-excursion
+ (goto-char (point-min))
+ (if (search-forward "\n\^_\nIndirect:" nil t)
+ (let ((bound (save-excursion (search-forward "\n\^_" nil t))))
+ (while (re-search-forward "^\\(.*\\): [0-9]+$" bound t)
+ (setq subfiles (cons (match-string-no-properties 1)
+ subfiles)))))
+ (setq subfiles (nreverse subfiles)
+ main-file nil))
+ (setq subfiles (cdr subfiles)))))
+ (error nil))
+ (if nodes
+ (setq nodes (nreverse nodes)
+ Info-index-nodes (cons (cons file nodes) Info-index-nodes)))
+ nodes)
+ ;; Find nodes with the word "Index" in the node name
+ (let ((case-fold-search t)
+ Info-history Info-history-list Info-fontify-maximum-menu-size
+ nodes node)
+ (condition-case nil
+ (with-temp-buffer
+ (Info-mode)
+ (Info-find-node file "Top")
+ (when (and (search-forward "\n* menu:" nil t)
+ (re-search-forward "\n\\* \\(.*\\<Index\\>\\)" nil t))
+ (goto-char (match-beginning 1))
+ (setq nodes (list (Info-extract-menu-node-name)))
+ (Info-goto-node (car nodes))
+ (while (and (setq node (Info-extract-pointer "next" t))
+ (string-match "\\<Index\\>" node))
+ (setq nodes (cons node nodes))
+ (Info-goto-node node))))
+ (error nil))
+ (if nodes
+ (setq nodes (nreverse nodes)
+ Info-index-nodes (cons (cons file nodes) Info-index-nodes)))
+ nodes)
+ ;; If file has no index nodes, still add it to the cache
+ (setq Info-index-nodes (cons (cons file nil) Info-index-nodes)))
+ (cdr (assoc file Info-index-nodes)))
+
+(defun Info-index-node (&optional node file)
+ "Return non-nil value if NODE is an index node.
+If NODE is nil, check the current Info node.
+If FILE is nil, check the current Info file."
+ (if (or (and node (not (equal node Info-current-node)))
+ (assoc (or file Info-current-file) Info-index-nodes))
+ (member (or node Info-current-node) (Info-index-nodes file))
+ ;; Don't search all index nodes if request is only for the current node
+ ;; and file is not in the cache of index nodes
+ (or
+ (save-match-data
+ (string-match "\\<Index\\>" (or node Info-current-node "")))
+ (save-excursion
+ (goto-char (+ (or (save-excursion
+ (search-backward "\n\^_" nil t))
+ (point-min)) 2))
+ (search-forward "\0\b[index\0\b]"
+ (or (save-excursion
+ (search-forward "\n\^_" nil t))
+ (point-max)) t)))))
(defun Info-goto-index ()
- (Info-goto-node "Top")
- (or (search-forward "\n* menu:" nil t)
- (error "No index"))
- (or (re-search-forward "\n\\* \\(.*\\<Index\\>\\)" nil t)
- (error "No index"))
- (goto-char (match-beginning 1))
- ;; Protect Info-history so that the current node (Top) is not added to it.
- (let ((Info-history nil))
- (Info-goto-node (Info-extract-menu-node-name))))
+ "Go to the first index node."
+ (let ((node (car (Info-index-nodes))))
+ (or node (error "No index"))
+ (Info-goto-node node)))
;;;###autoload
(defun Info-index (topic)
"Look up a string TOPIC in the index for this file.
-The index is defined as the first node in the top level menu whose
-name contains the word \"Index\", plus any immediately following
-nodes whose names also contain the word \"Index\".
If there are no exact matches to the specified topic, this chooses
the first match which is a case-insensitive substring of a topic.
-Use the `,' command to see the other matches.
+Use the \\<Info-mode-map>\\[Info-index-next] command to see the other matches.
Give a blank topic name to go to the Index node itself."
(interactive
(list
(let ((Info-complete-menu-buffer (clone-buffer))
- (Info-complete-next-re "\\<Index\\>"))
+ (Info-complete-nodes (Info-index-nodes))
+ (Info-history-list nil))
(if (equal Info-current-file "dir")
(error "The Info directory node has no index; use m to select a manual"))
(unwind-protect
(if (equal Info-current-file "dir")
(error "The Info directory node has no index; use m to select a manual"))
(let ((orignode Info-current-node)
- (pattern (format "\n\\* +\\([^\n]*%s[^\n]*\\):[ \t]+\\([^.\n]*\\)\\.[ \t]*\\([0-9]*\\)"
+ (pattern (format "\n\\* +\\([^\n]*%s[^\n]*\\):[ \t]+\\([^\n]*\\)\\.\\(?:[ \t\n]*(line +\\([0-9]+\\))\\)?"
(regexp-quote topic)))
- node
+ node (nodes (Info-index-nodes))
+ (ohist-list Info-history-list)
(case-fold-search t))
(Info-goto-index)
(or (equal topic "")
(string-to-number (concat "0"
(match-string 3))))
matches))
- (and (setq node (Info-extract-pointer "next" t))
- (string-match "\\<Index\\>" node)))
+ (setq nodes (cdr nodes) node (car nodes)))
(Info-goto-node node))
(or matches
(progn
(while (setq found (assoc topic matches))
(setq exact (cons found exact)
matches (delq found matches)))
+ (setq Info-history-list ohist-list)
(setq Info-index-alternatives (nconc exact (nreverse matches)))
(Info-index-next 0)))))
(defun Info-index-next (num)
- "Go to the next matching index item from the last `i' command."
+ "Go to the next matching index item from the last \\<Info-mode-map>\\[Info-index] command."
(interactive "p")
(or Info-index-alternatives
(error "No previous `i' command"))
num (1- num)))
(Info-goto-node (nth 1 (car Info-index-alternatives)))
(if (> (nth 3 (car Info-index-alternatives)) 0)
- (forward-line (nth 3 (car Info-index-alternatives)))
+ (forward-line (1- (nth 3 (car Info-index-alternatives))))
(forward-line 3) ; don't search in headers
(let ((name (car (car Info-index-alternatives))))
(Info-find-index-name name)))
(progn (beginning-of-line) t) ;; non-nil for recursive call
(goto-char (point-min)))))
+;;;###autoload
+(defun info-apropos (string)
+ "Grovel indices of all known Info files on your system for STRING.
+Build a menu of the possible matches."
+ (interactive "sIndex apropos: ")
+ (unless (string= string "")
+ (let ((pattern (format "\n\\* +\\([^\n]*%s[^\n]*\\):[ \t]+\\([^\n]+\\)\\.\\(?:[ \t\n]*(line +\\([0-9]+\\))\\)?"
+ (regexp-quote string)))
+ (ohist Info-history)
+ (ohist-list Info-history-list)
+ (current-node Info-current-node)
+ (current-file Info-current-file)
+ manuals matches node nodes)
+ (let ((Info-fontify-maximum-menu-size nil))
+ (Info-directory)
+ (message "Searching indices...")
+ (goto-char (point-min))
+ (re-search-forward "\\* Menu: *\n" nil t)
+ (while (re-search-forward "\\*.*: *(\\([^)]+\\))" nil t)
+ (add-to-list 'manuals (match-string 1)))
+ (dolist (manual manuals)
+ (message "Searching %s" manual)
+ (if (setq nodes (Info-index-nodes (Info-find-file manual)))
+ (condition-case nil
+ (save-excursion
+ (Info-find-node manual (car nodes))
+ (while
+ (progn
+ (goto-char (point-min))
+ (while (re-search-forward pattern nil t)
+ (add-to-list 'matches
+ (list manual
+ (match-string-no-properties 1)
+ (match-string-no-properties 2)
+ (match-string-no-properties 3))))
+ (setq nodes (cdr nodes) node (car nodes)))
+ (Info-goto-node node)))
+ (error nil)))))
+ (Info-goto-node (concat "(" current-file ")" current-node))
+ (setq Info-history ohist
+ Info-history-list ohist-list)
+ (message "Searching indices...done")
+ (if (null matches)
+ (message "No matches found")
+ (with-current-buffer (get-buffer-create " *info-apropos*")
+ (erase-buffer)
+ (insert "\n\^_\nFile: apropos, Node: Index, Up: (dir)\n")
+ (insert "* Menu: \nNodes whose indices contain \"" string "\"\n\n")
+ (dolist (entry matches)
+ (insert
+ (format "* %-38s (%s)%s.%s\n"
+ (concat (nth 1 entry) " [" (nth 0 entry) "]:")
+ (nth 0 entry)
+ (nth 2 entry)
+ (if (nth 3 entry)
+ (concat " (line " (nth 3 entry) ")")
+ "")))))
+ (Info-find-node "apropos" "Index")
+ (setq Info-complete-cache nil)))))
+
(defun Info-undefined ()
"Make command be undefined in Info."
(interactive)
(save-excursion (forward-line 1) (eobp))
(Info-next-preorder)))
-(defun Info-follow-nearest-node ()
+(defun Info-follow-nearest-node (&optional fork)
"Follow a node reference near point.
If point is on a reference, follow that reference. Otherwise,
if point is in a menu item description, follow that menu item."
- (interactive)
- (or (Info-try-follow-nearest-node)
+ (interactive "P")
+ (or (Info-try-follow-nearest-node fork)
(when (save-excursion
(search-backward "\n* menu:" nil t))
(save-excursion
(beginning-of-line 0))
(when (looking-at "\\* +\\([^\t\n]*\\):")
(Info-goto-node
- (Info-extract-menu-item (match-string-no-properties 1)))
+ (Info-extract-menu-item (match-string-no-properties 1)) fork)
t)))
(error "Point neither on reference nor in menu item description")))
;; Common subroutine.
-(defun Info-try-follow-nearest-node ()
+(defun Info-try-follow-nearest-node (&optional fork)
"Follow a node reference near point. Return non-nil if successful."
(let (node)
(cond
- ((setq node (Info-get-token (point) "\\*note[ \n]"
- "\\*note[ \n]\\([^:]*\\):"))
- (Info-follow-reference node))
+ ((and (Info-get-token (point) "[hf]t?tp://" "[hf]t?tp://\\([^ \t\n\"`({<>})']+\\)")
+ (or (featurep 'browse-url) (require 'browse-url nil t)))
+ (setq node t)
+ (browse-url (browse-url-url-at-point)))
+ ((setq node (Info-get-token (point) "\\*note[ \n\t]+"
+ "\\*note[ \n\t]+\\([^:]*\\):\\(:\\|[ \n\t]*(\\)?"))
+ (Info-follow-reference node fork))
;; menu item: node name
((setq node (Info-get-token (point) "\\* +" "\\* +\\([^:]*\\)::"))
- (Info-goto-node node))
- ;; menu item: index entry
+ (Info-goto-node node fork))
+ ;; menu item: node name or index entry
((Info-get-token (point) "\\* +" "\\* +\\(.*\\): ")
(beginning-of-line)
(forward-char 2)
- (setq node (Info-extract-menu-node-name))
- (Info-goto-node node))
+ (setq node (Info-extract-menu-node-name nil (Info-index-node)))
+ (Info-goto-node node fork))
((setq node (Info-get-token (point) "Up: " "Up: \\([^,\n\t]*\\)"))
- (Info-goto-node node))
+ (Info-goto-node node fork))
((setq node (Info-get-token (point) "Next: " "Next: \\([^,\n\t]*\\)"))
- (Info-goto-node node))
+ (Info-goto-node node fork))
((setq node (Info-get-token (point) "File: " "File: \\([^,\n\t]*\\)"))
- (Info-goto-node "Top"))
+ (Info-goto-node "Top" fork))
((setq node (Info-get-token (point) "Prev: " "Prev: \\([^,\n\t]*\\)"))
- (Info-goto-node node)))
+ (Info-goto-node node fork)))
node))
\f
(defvar Info-mode-map nil
(define-key Info-mode-map "h" 'Info-help)
(define-key Info-mode-map "i" 'Info-index)
(define-key Info-mode-map "l" 'Info-last)
+ (define-key Info-mode-map "L" 'Info-history)
(define-key Info-mode-map "m" 'Info-menu)
(define-key Info-mode-map "n" 'Info-next)
(define-key Info-mode-map "p" 'Info-prev)
(define-key Info-mode-map "q" 'Info-exit)
(define-key Info-mode-map "s" 'Info-search)
+ (define-key Info-mode-map "S" 'Info-search-case-sensitively)
;; For consistency with Rmail.
(define-key Info-mode-map "\M-s" 'Info-search)
(define-key Info-mode-map "\M-n" 'clone-buffer)
(define-key Info-mode-map "t" 'Info-top-node)
+ (define-key Info-mode-map "T" 'Info-toc)
(define-key Info-mode-map "u" 'Info-up)
+ ;; For consistency with dired-copy-filename-as-kill.
+ (define-key Info-mode-map "w" 'Info-copy-current-node-name)
(define-key Info-mode-map "," 'Info-index-next)
(define-key Info-mode-map "\177" 'Info-scroll-down)
(define-key Info-mode-map [mouse-2] 'Info-mouse-follow-nearest-node)
("Reference" ["You should never see this" report-emacs-bug t])
["Search..." Info-search
:help "Search for regular expression in this Info file"]
+ ["Search Case-Sensitively..." Info-search-case-sensitively
+ :help "Search for regular expression case sensitively"]
+ ["Search Next" Info-search-next
+ :help "Search for another occurrence of regular expression"]
["Go to Node..." Info-goto-node
:help "Go to a named node"]
["Last" Info-last :active Info-history
:help "Go to the last node you were at"]
+ ["History" Info-history :active Info-history-list
+ :help "Go to menu of visited nodes"]
+ ["Table of Contents" Info-toc
+ :help "Go to table of contents"]
("Index..."
["Lookup a String" Info-index
:help "Look for a string in the index items"]
["Next Matching Item" Info-index-next
- :help "Look for another occurrence of previous item"])
+ :help "Look for another occurrence of previous item"]
+ ["Lookup a string in all indices" info-apropos
+ :help "Look for a string in the indices of all manuals"])
["Edit" Info-edit :help "Edit contents of this node"
:active Info-enable-edit]
["Copy Node Name" Info-copy-current-node-name
:help "Copy the name of the current node into the kill ring"]
+ ["Clone Info buffer" clone-buffer
+ :help "Create a twin copy of the current Info buffer."]
["Exit" Info-exit :help "Stop reading Info"]))
(case-fold-search t))
(save-excursion
(goto-char (point-min))
- (while (re-search-forward "\\*note[ \n\t]*\\([^:]*\\):" nil t)
+ (while (re-search-forward "\\*note[ \n\t]+\\([^:]*\\):" nil t)
(setq str (match-string 1))
(setq i 0)
(while (setq i (string-match "[ \n\t]+" str i))
(error (ding))))
\f
-(defun Info-copy-current-node-name ()
+(defun Info-copy-current-node-name (&optional arg)
"Put the name of the current info node into the kill ring.
-The name of the info file is prepended to the node name in parentheses."
- (interactive)
+The name of the info file is prepended to the node name in parentheses.
+With a zero prefix arg, put the name inside a function call to `info'."
+ (interactive "P")
(unless Info-current-node
(error "No current info node"))
- (kill-new
- (concat "("
- (file-name-nondirectory
- (if (stringp Info-current-file)
- Info-current-file
- (or buffer-file-name "")))
- ")"
- Info-current-node)))
+ (let ((node (concat "(" (file-name-nondirectory
+ (or (and (stringp Info-current-file)
+ Info-current-file)
+ buffer-file-name
+ ""))
+ ")" Info-current-node)))
+ (if (zerop (prefix-numeric-value arg))
+ (setq node (concat "(info \"" node "\")")))
+ (kill-new node)
+ (message "%s" node)))
\f
;; Info mode is suitable only for specially formatted data.
\\[Info-directory] Go to the Info directory node.
\\[Info-follow-reference] Follow a cross reference. Reads name of reference.
\\[Info-last] Move to the last node you were at.
-\\[Info-index] Look up a topic in this file's Index and move to that node.
-\\[Info-index-next] (comma) Move to the next match from a previous `i' command.
+\\[Info-history] Go to menu of visited nodes.
+\\[Info-toc] Go to table of contents of the current Info file.
\\[Info-top-node] Go to the Top node of this file.
\\[Info-final-node] Go to the final node in this file.
\\[Info-backward-node] Go backward one node, considering all nodes as forming one sequence.
\\[Info-forward-node] Go forward one node, considering all nodes as forming one sequence.
+\\[Info-index] Look up a topic in this file's Index and move to that node.
+\\[Info-index-next] (comma) Move to the next match from a previous \\<Info-mode-map>\\[Info-index] command.
+\\[info-apropos] Look for a string in the indices of all manuals.
Moving within a node:
\\[Info-scroll-up] Normally, scroll forward a full screen.
Advanced commands:
\\[Info-copy-current-node-name] Put name of current info node in the kill ring.
+\\[clone-buffer] Select a new cloned Info buffer in another window.
\\[Info-edit] Edit contents of selected node.
-1 Pick first item in node's menu.
-2, 3, 4, 5 Pick second ... fifth item in node's menu.
+1 .. 9 Pick first ... ninth item in node's menu.
+ Every third `*' is highlighted to help pick the right number.
\\[Info-goto-node] Move to node specified by name.
You may include a filename as well, as (FILENAME)NODENAME.
\\[universal-argument] \\[info] Move to new Info file with completion.
+\\[universal-argument] N \\[info] Select Info buffer with prefix number in the name *info*<N>.
\\[Info-search] Search through this Info file for specified regexp,
and select the node in which the next occurrence is found.
+\\[Info-search-case-sensitively] Search through this Info file for specified regexp case-sensitively.
+\\[Info-search-next] Search for another occurrence of regexp
+ from a previous \\<Info-mode-map>\\[Info-search] command.
\\[Info-next-reference] Move cursor to next cross-reference or menu item.
\\[Info-prev-reference] Move cursor to previous cross-reference or menu item."
(kill-all-local-variables)
;; This is for the sake of the invisible text we use handling titles.
(make-local-variable 'line-move-ignore-invisible)
(setq line-move-ignore-invisible t)
+ (make-local-variable 'desktop-save-buffer)
+ (setq desktop-save-buffer 'Info-desktop-buffer-misc-data)
(add-hook 'clone-buffer-hook 'Info-clone-buffer-hook nil t)
(add-hook 'change-major-mode-hook 'font-lock-defontify nil t)
+ (set (make-local-variable 'isearch-search-fun-function)
+ 'Info-isearch-search)
+ (set (make-local-variable 'isearch-wrap-function)
+ 'Info-isearch-wrap)
+ (set (make-local-variable 'isearch-push-state-function)
+ 'Info-isearch-push-state)
+ (set (make-local-variable 'search-whitespace-regexp)
+ Info-search-whitespace-regexp)
(Info-set-mode-line)
(run-hooks 'Info-mode-hook))
(car elt)
elt))
(file (if (consp elt) (cdr elt) elt))
+ (case-fold-search nil)
(regexp (concat "\\`" (regexp-quote name)
"\\(\\'\\|-\\)")))
(if (string-match regexp (symbol-name command))
;; Bind Info-history to nil, to prevent the index nodes from
;; getting into the node history.
(let ((Info-history nil)
- node)
- (Info-goto-node (Info-extract-menu-node-name))
+ (Info-history-list nil)
+ node (nodes (Info-index-nodes)))
+ (Info-goto-node (car nodes))
(while
(progn
(goto-char (point-min))
(match-string-no-properties 2)
0)
where)))
- (and (setq node (Info-extract-pointer "next" t))
- (string-match "\\<Index\\>" node)))
+ (and (setq nodes (cdr nodes) node (car nodes))))
(Info-goto-node node)))
where))
;; Get Info running, and pop to it in another window.
(save-window-excursion
(info))
- ;; FIXME It would be cool if this could use a buffer other
- ;; than *info*.
- (pop-to-buffer "*info*")
+ (or (eq major-mode 'Info-mode) (pop-to-buffer "*info*"))
;; Bind Info-history to nil, to prevent the last Index node
;; visited by Info-find-emacs-command-nodes from being
;; pushed onto the history.
- (let ((Info-history nil))
+ (let ((Info-history nil) (Info-history-list nil))
(Info-find-node (car (car where))
(car (cdr (car where)))))
(if (> num-matches 1)
(Info-goto-emacs-command-node command)))))
\f
(defface Info-title-1-face
- '((((type tty pc) (class color)) (:foreground "yellow" :weight bold))
- (t (:height 1.2 :inherit Info-title-2-face)))
+ '((((type tty pc) (class color)) :foreground "yellow" :weight bold)
+ (t :height 1.2 :inherit Info-title-2-face))
"Face for Info titles at level 1."
:group 'info)
(defface Info-title-2-face
- '((((type tty pc) (class color)) (:foreground "lightblue" :weight bold))
- (t (:height 1.2 :inherit Info-title-3-face)))
+ '((((type tty pc) (class color)) :foreground "lightblue" :weight bold)
+ (t :height 1.2 :inherit Info-title-3-face))
"Face for Info titles at level 2."
:group 'info)
(defface Info-title-3-face
- '((((type tty pc) (class color)) (:weight bold))
- (t (:height 1.2 :inherit Info-title-4-face)))
+ '((((type tty pc) (class color)) :weight bold)
+ (t :height 1.2 :inherit Info-title-4-face))
"Face for Info titles at level 3."
:group 'info)
(defface Info-title-4-face
- '((((type tty pc) (class color)) (:weight bold))
- (t (:weight bold :inherit variable-pitch)))
+ '((((type tty pc) (class color)) :weight bold)
+ (t :weight bold :inherit variable-pitch))
"Face for Info titles at level 4."
:group 'info)
(push (substring string start end) matches)
(apply #'concat (nreverse matches)))))
-(defun Info-fontify-menu-headers ()
- "Add the face `info-menu-header' to any header before a menu entry."
- (save-excursion
- (goto-char (point-min))
- (when (re-search-forward "^\\* Menu:" nil t)
- (put-text-property (match-beginning 0) (match-end 0)
- 'font-lock-face 'info-menu-header)
- (while (re-search-forward "\n\n\\([^*\n ].*\\)\n\n?[*]" nil t)
- (put-text-property (match-beginning 1) (match-end 1)
- 'font-lock-face 'info-menu-header)))))
-
(defvar Info-next-link-keymap
(let ((keymap (make-sparse-keymap)))
(define-key keymap [header-line mouse-1] 'Info-next)
"Keymap to put on the Up link in the text or the header line.")
(defun Info-fontify-node ()
- ;; Only fontify the node if it hasn't already been done.
- (unless (let ((where (next-property-change (point-min))))
- (and where (not (= where (point-max)))))
- (save-excursion
- (let ((inhibit-read-only t)
- (case-fold-search t)
- paragraph-markers)
- (goto-char (point-min))
- (when (looking-at "^\\(File: [^,: \t]+,?[ \t]+\\)?")
- (goto-char (match-end 0))
- (while (looking-at "[ \t]*\\([^:, \t\n]+\\):[ \t]+\\([^:,\t\n]+\\),?")
- (goto-char (match-end 0))
- (let* ((nbeg (match-beginning 2))
- (nend (match-end 2))
- (tbeg (match-beginning 1))
- (tag (match-string 1)))
- (if (string-equal tag "Node")
- (put-text-property nbeg nend 'font-lock-face 'info-header-node)
- (put-text-property nbeg nend 'font-lock-face 'info-header-xref)
- (put-text-property tbeg nend 'mouse-face 'highlight)
- (put-text-property tbeg nend
- 'help-echo
- (concat "Go to node "
- (buffer-substring nbeg nend)))
- ;; Always set up the text property keymap.
- ;; It will either be used in the buffer
- ;; or copied in the header line.
- (put-text-property tbeg nend 'keymap
- (cond
- ((equal tag "Prev") Info-prev-link-keymap)
- ((equal tag "Next") Info-next-link-keymap)
- ((equal tag "Up") Info-up-link-keymap))))))
- (when Info-use-header-line
- (goto-char (point-min))
- (let ((header-end (line-end-position))
- header)
- ;; If we find neither Next: nor Prev: link, show the entire
- ;; node header. Otherwise, don't show the File: and Node:
- ;; parts, to avoid wasting precious space on information that
- ;; is available in the mode line.
- (if (re-search-forward
- "\\(next\\|up\\|prev[ious]*\\): "
- header-end t)
- (progn
- (goto-char (match-beginning 1))
- (setq header (buffer-substring (point) header-end)))
- (if (re-search-forward "node:[ \t]*[^ \t]+[ \t]*" header-end t)
- (setq header
- (concat "No next, prev or up links -- "
- (buffer-substring (point) header-end)))
- (setq header (buffer-substring (point) header-end))))
-
- (put-text-property (point-min) (1+ (point-min))
- 'header-line (Info-escape-percent header))
- ;; Hide the part of the first line
- ;; that is in the header, if it is just part.
- (unless (bobp)
- ;; Hide the punctuation at the end, too.
- (skip-chars-backward " \t,")
- (put-text-property (point) header-end 'invisible t)))))
- (goto-char (point-min))
- (while (re-search-forward "\n\\([^ \t\n].+\\)\n\\(\\*+\\|=+\\|-+\\|\\.+\\)$"
- nil t)
- (let* ((c (preceding-char))
- (face
- (cond ((= c ?*) 'Info-title-1-face)
- ((= c ?=) 'Info-title-2-face)
- ((= c ?-) 'Info-title-3-face)
- (t 'Info-title-4-face))))
- (put-text-property (match-beginning 1) (match-end 1)
- 'font-lock-face face))
- ;; This is a serious problem for trying to handle multiple
- ;; frame types at once. We want this text to be invisible
- ;; on frames that can display the font above.
- (when (memq (framep (selected-frame)) '(x pc w32 mac))
- (add-text-properties (1- (match-beginning 2)) (match-end 2)
- '(invisible t front-sticky nil rear-nonsticky t))))
- (goto-char (point-min))
- (while (re-search-forward "\\(\\*Note[ \t]*\\)\n?[ \t]*\\([^:]*\\)\\(:[^.,:(]*\\(([^)]*)[^.,:]*\\)?[,:]?\n?\\)" nil t)
- (unless (= (char-after (1- (match-beginning 0))) ?\") ; hack
- (let ((start (match-beginning 0))
- (next (point))
- (hide-tag Info-hide-note-references)
- other-tag)
- (when hide-tag
- ;; *Note is often used where *note should have been
- (goto-char start)
- (skip-syntax-backward " ")
- (setq other-tag
- (cond ((memq (char-before) '(nil ?\. ?! ??))
- "See ")
- ((memq (char-before) '(?\, ?\; ?\: ?-))
- "see ")
- ((memq (char-before) '(?\( ?\[ ?\{))
- ;; Check whether the paren is preceded by
- ;; an end of sentence
- (skip-syntax-backward " (")
- (if (memq (char-before) '(nil ?\. ?! ??))
- "See "
- "see "))
- ((save-match-data (looking-at "\n\n"))
- "See ")))
- (goto-char next))
- (if hide-tag
- (add-text-properties (match-beginning 1) (match-end 1)
- '(invisible t front-sticky nil rear-nonsticky t)))
- (add-text-properties
- (match-beginning 2) (match-end 2)
- (cons 'help-echo
- (cons (if (match-end 4)
- (concat "mouse-2: go to " (match-string 4))
- "mouse-2: go to this node")
- '(font-lock-face info-xref
- mouse-face highlight))))
- (when (eq Info-hide-note-references t)
- (add-text-properties (match-beginning 3) (match-end 3)
- '(invisible t front-sticky nil rear-nonsticky t)))
- (when other-tag
- (save-excursion
- (goto-char (match-beginning 1))
- (insert other-tag)))
- (when (and Info-refill-paragraphs
- (or hide-tag (eq Info-hide-note-references t)))
- (push (set-marker (make-marker) start)
- paragraph-markers)))))
-
- (when (and Info-refill-paragraphs
- paragraph-markers)
- (let ((fill-nobreak-invisible t)
- (fill-individual-varying-indent nil)
- (paragraph-start "\f\\|[ \t]*[-*]\\|[ \t]*$")
- (paragraph-separate ".*\\.[ \t]*\n[ \t]\\|[ \t]*[-*]\\|[ \t\f]*$")
- (adaptive-fill-mode nil))
- (goto-char (point-max))
- (while paragraph-markers
- (let ((m (car paragraph-markers)))
- (setq paragraph-markers (cdr paragraph-markers))
- (when (< m (point))
- (goto-char m)
- (beginning-of-line)
- (let ((beg (point)))
- (when (zerop (forward-paragraph))
- (fill-individual-paragraphs beg (point) nil nil)
- (goto-char beg))))
- (set-marker m nil)))))
+ "Fontify the node."
+ (save-excursion
+ (let* ((inhibit-read-only t)
+ (case-fold-search t)
+ paragraph-markers
+ (not-fontified-p ; the node hasn't already been fontified
+ (not (let ((where (next-property-change (point-min))))
+ (and where (not (= where (point-max)))))))
+ (fontify-visited-p ; visited nodes need to be re-fontified
+ (and Info-fontify-visited-nodes
+ ;; Don't take time to refontify visited nodes in huge nodes
+ (< (- (point-max) (point-min)) Info-fontify-maximum-menu-size)))
+ rbeg rend)
+
+ ;; Fontify header line
+ (goto-char (point-min))
+ (when (and not-fontified-p (looking-at "^\\(File: [^,: \t]+,?[ \t]+\\)?"))
+ (goto-char (match-end 0))
+ (while (looking-at "[ \t]*\\([^:, \t\n]+\\):[ \t]+\\([^:,\t\n]+\\),?")
+ (goto-char (match-end 0))
+ (let* ((nbeg (match-beginning 2))
+ (nend (match-end 2))
+ (tbeg (match-beginning 1))
+ (tag (match-string 1)))
+ (if (string-equal tag "Node")
+ (put-text-property nbeg nend 'font-lock-face 'info-header-node)
+ (put-text-property nbeg nend 'font-lock-face 'info-header-xref)
+ (put-text-property tbeg nend 'mouse-face 'highlight)
+ (put-text-property tbeg nend
+ 'help-echo
+ (concat "Go to node "
+ (buffer-substring nbeg nend)))
+ ;; Always set up the text property keymap.
+ ;; It will either be used in the buffer
+ ;; or copied in the header line.
+ (put-text-property tbeg nend 'keymap
+ (cond
+ ((equal tag "Prev") Info-prev-link-keymap)
+ ((equal tag "Next") Info-next-link-keymap)
+ ((equal tag "Up") Info-up-link-keymap))))))
+ (when Info-use-header-line
+ (goto-char (point-min))
+ (let ((header-end (line-end-position))
+ header)
+ ;; If we find neither Next: nor Prev: link, show the entire
+ ;; node header. Otherwise, don't show the File: and Node:
+ ;; parts, to avoid wasting precious space on information that
+ ;; is available in the mode line.
+ (if (re-search-forward
+ "\\(next\\|up\\|prev[ious]*\\): "
+ header-end t)
+ (progn
+ (goto-char (match-beginning 1))
+ (setq header (buffer-substring (point) header-end)))
+ (if (re-search-forward "node:[ \t]*[^ \t]+[ \t]*" header-end t)
+ (setq header
+ (concat "No next, prev or up links -- "
+ (buffer-substring (point) header-end)))
+ (setq header (buffer-substring (point) header-end))))
+ (put-text-property (point-min) (1+ (point-min))
+ 'header-line (Info-escape-percent header))
+ ;; Hide the part of the first line
+ ;; that is in the header, if it is just part.
+ (unless (bobp)
+ ;; Hide the punctuation at the end, too.
+ (skip-chars-backward " \t,")
+ (put-text-property (point) header-end 'invisible t)))))
+
+ ;; Fontify titles
+ (goto-char (point-min))
+ (when not-fontified-p
+ (while (re-search-forward "\n\\([^ \t\n].+\\)\n\\(\\*+\\|=+\\|-+\\|\\.+\\)$"
+ nil t)
+ (let* ((c (preceding-char))
+ (face
+ (cond ((= c ?*) 'Info-title-1-face)
+ ((= c ?=) 'Info-title-2-face)
+ ((= c ?-) 'Info-title-3-face)
+ (t 'Info-title-4-face))))
+ (put-text-property (match-beginning 1) (match-end 1)
+ 'font-lock-face face))
+ ;; This is a serious problem for trying to handle multiple
+ ;; frame types at once. We want this text to be invisible
+ ;; on frames that can display the font above.
+ (when (memq (framep (selected-frame)) '(x pc w32 mac))
+ (add-text-properties (1- (match-beginning 2)) (match-end 2)
+ '(invisible t front-sticky nil rear-nonsticky t)))))
+
+ ;; Fontify cross references
+ (goto-char (point-min))
+ (when (or not-fontified-p fontify-visited-p)
+ (while (re-search-forward "\\(\\*Note[ \n\t]+\\)\\([^:]*\\)\\(:[ \t]*\\([^.,:(]*\\)\\(\\(([^)]*)\\)[^.,:]*\\)?[,:]?\n?\\)" nil t)
+ (let ((start (match-beginning 0))
+ (next (point))
+ other-tag)
+ (when not-fontified-p
+ (when Info-hide-note-references
+ (when (not (eq Info-hide-note-references 'hide))
+ ;; *Note is often used where *note should have been
+ (goto-char start)
+ (skip-syntax-backward " ")
+ (setq other-tag
+ (cond ((memq (char-before) '(nil ?\. ?! ??))
+ "See ")
+ ((memq (char-before) '(?\, ?\; ?\: ?-))
+ "see ")
+ ((memq (char-before) '(?\( ?\[ ?\{))
+ ;; Check whether the paren is preceded by
+ ;; an end of sentence
+ (skip-syntax-backward " (")
+ (if (memq (char-before) '(nil ?\. ?! ??))
+ "See "
+ "see "))
+ ((save-match-data (looking-at "\n\n"))
+ "See "))))
+ (goto-char next)
+ (add-text-properties
+ (match-beginning 1)
+ (or (save-match-data
+ ;; Don't hide \n after *Note
+ (let ((start1 (match-beginning 1)))
+ (if (string-match "\n" (match-string 1))
+ (+ start1 (match-beginning 0)))))
+ (match-end 1))
+ (if other-tag
+ `(display ,other-tag front-sticky nil rear-nonsticky t)
+ '(invisible t front-sticky nil rear-nonsticky t))))
+ (add-text-properties
+ (match-beginning 2) (match-end 2)
+ (list
+ 'help-echo (if (or (match-end 5)
+ (not (equal (match-string 4) "")))
+ (concat "mouse-2: go to " (or (match-string 5)
+ (match-string 4)))
+ "mouse-2: go to this node")
+ 'mouse-face 'highlight)))
+ (when (or not-fontified-p fontify-visited-p)
+ (setq rbeg (match-beginning 2)
+ rend (match-end 2))
+ (put-text-property
+ rbeg rend
+ 'font-lock-face
+ ;; Display visited nodes in a different face
+ (if (and Info-fontify-visited-nodes
+ (save-match-data
+ (let* ((node (replace-regexp-in-string
+ "^[ \t]+" ""
+ (replace-regexp-in-string
+ "[ \t\n]+" " "
+ (or (match-string 5)
+ (and (not (equal (match-string 4) ""))
+ (match-string 4))
+ (match-string 2)))))
+ (file (file-name-nondirectory
+ Info-current-file))
+ (hl Info-history-list)
+ res)
+ (if (string-match "(\\([^)]+\\))\\([^)]*\\)" node)
+ (setq file (file-name-nondirectory
+ (match-string 1 node))
+ node (if (equal (match-string 2 node) "")
+ "Top"
+ (match-string 2 node))))
+ (while hl
+ (if (and (string-equal node (nth 1 (car hl)))
+ (string-equal file
+ (file-name-nondirectory
+ (nth 0 (car hl)))))
+ (setq res (car hl) hl nil)
+ (setq hl (cdr hl))))
+ res))) 'info-xref-visited 'info-xref))
+ ;; For multiline ref, unfontify newline and surrounding whitespace
+ (save-excursion
+ (goto-char rbeg)
+ (save-match-data
+ (while (re-search-forward "\\s-*\n\\s-*" rend t nil)
+ (remove-text-properties (match-beginning 0)
+ (match-end 0)
+ '(font-lock-face t))))))
+ (when not-fontified-p
+ (when (memq Info-hide-note-references '(t hide))
+ (add-text-properties (match-beginning 3) (match-end 3)
+ '(invisible t front-sticky nil rear-nonsticky t))
+ ;; Unhide the file name of the external reference in parens
+ (if (and (match-string 6) (not (eq Info-hide-note-references 'hide)))
+ (remove-text-properties (match-beginning 6) (match-end 6)
+ '(invisible t front-sticky nil rear-nonsticky t)))
+ ;; Unhide newline because hidden newlines cause too long lines
+ (save-match-data
+ (let ((beg3 (match-beginning 3))
+ (end3 (match-end 3)))
+ (if (and (string-match "\n[ \t]*" (match-string 3))
+ (not (save-match-data
+ (save-excursion
+ (goto-char (1+ end3))
+ (looking-at "[.)]*$")))))
+ (remove-text-properties (+ beg3 (match-beginning 0))
+ (+ beg3 (match-end 0))
+ '(invisible t front-sticky nil rear-nonsticky t))))))
+ (when (and Info-refill-paragraphs Info-hide-note-references)
+ (push (set-marker (make-marker) start)
+ paragraph-markers))))))
+
+ ;; Refill paragraphs (experimental feature)
+ (when (and not-fontified-p
+ Info-refill-paragraphs
+ paragraph-markers)
+ (let ((fill-nobreak-invisible t)
+ (fill-individual-varying-indent nil)
+ (paragraph-start "\f\\|[ \t]*[-*]\\|[ \t]*$")
+ (paragraph-separate ".*\\.[ \t]*\n[ \t]\\|[ \t]*[-*]\\|[ \t\f]*$")
+ (adaptive-fill-mode nil))
+ (goto-char (point-max))
+ (while paragraph-markers
+ (let ((m (car paragraph-markers)))
+ (setq paragraph-markers (cdr paragraph-markers))
+ (when (< m (point))
+ (goto-char m)
+ (beginning-of-line)
+ (let ((beg (point)))
+ (when (zerop (forward-paragraph))
+ (fill-individual-paragraphs beg (point) nil nil)
+ (goto-char beg))))
+ (set-marker m nil)))))
+
+ ;; Fontify menu items
+ (goto-char (point-min))
+ (when (and (or not-fontified-p fontify-visited-p)
+ (search-forward "\n* Menu:" nil t)
+ (not (Info-index-node))
+ ;; Don't take time to annotate huge menus
+ (< (- (point-max) (point)) Info-fontify-maximum-menu-size))
+ (let ((n 0)
+ cont)
+ (while (re-search-forward
+ (concat "^\\* +\\(" Info-menu-entry-name-re "\\)\\(:"
+ Info-node-spec-re "\\([ \t]*\\)\\)")
+ nil t)
+ (when not-fontified-p
+ (setq n (1+ n))
+ (if (and (<= n 9) (zerop (% n 3))) ; visual aids to help with 1-9 keys
+ (put-text-property (match-beginning 0)
+ (1+ (match-beginning 0))
+ 'font-lock-face 'info-menu-5)))
+ (when not-fontified-p
+ (add-text-properties
+ (match-beginning 1) (match-end 1)
+ (list
+ 'help-echo (if (match-end 3)
+ (concat "mouse-2: go to " (match-string 3))
+ "mouse-2: go to this node")
+ 'mouse-face 'highlight)))
+ (when (or not-fontified-p fontify-visited-p)
+ (add-text-properties
+ (match-beginning 1) (match-end 1)
+ (list
+ 'font-lock-face
+ ;; Display visited menu items in a different face
+ (if (and Info-fontify-visited-nodes
+ (save-match-data
+ (let ((node (if (equal (match-string 3) "")
+ (match-string 1)
+ (match-string 3)))
+ (file (file-name-nondirectory Info-current-file))
+ (hl Info-history-list)
+ res)
+ (if (string-match "(\\([^)]+\\))\\([^)]*\\)" node)
+ (setq file (file-name-nondirectory
+ (match-string 1 node))
+ node (if (equal (match-string 2 node) "")
+ "Top"
+ (match-string 2 node))))
+ (while hl
+ (if (and (string-equal node (nth 1 (car hl)))
+ (string-equal file
+ (file-name-nondirectory
+ (nth 0 (car hl)))))
+ (setq res (car hl) hl nil)
+ (setq hl (cdr hl))))
+ res))) 'info-xref-visited 'info-xref))))
+ (when (and not-fontified-p (memq Info-hide-note-references '(t hide)))
+ (put-text-property (match-beginning 2) (1- (match-end 6))
+ 'invisible t)
+ ;; Unhide the file name in parens
+ (if (and (match-end 4) (not (eq (char-after (match-end 4)) ?.)))
+ (remove-text-properties (match-beginning 4) (match-end 4)
+ '(invisible t)))
+ ;; We need a stretchable space like :align-to but with
+ ;; a minimum value.
+ (put-text-property (1- (match-end 6)) (match-end 6) 'display
+ (if (>= 22 (- (match-end 1)
+ (match-beginning 0)))
+ '(space :align-to 24)
+ '(space :width 2)))
+ (setq cont (looking-at "."))
+ (while (and (= (forward-line 1) 0)
+ (looking-at "\\([ \t]+\\)[^*\n]"))
+ (put-text-property (match-beginning 1) (1- (match-end 1))
+ 'invisible t)
+ (put-text-property (1- (match-end 1)) (match-end 1)
+ 'display
+ (if cont
+ '(space :align-to 26)
+ '(space :align-to 24)))
+ (setq cont t))))))
+
+ ;; Fontify menu headers
+ ;; Add the face `info-menu-header' to any header before a menu entry
+ (goto-char (point-min))
+ (when (and not-fontified-p (re-search-forward "^\\* Menu:" nil t))
+ (put-text-property (match-beginning 0) (match-end 0)
+ 'font-lock-face 'info-menu-header)
+ (while (re-search-forward "\n\n\\([^*\n ].*\\)\n\n?[*]" nil t)
+ (put-text-property (match-beginning 1) (match-end 1)
+ 'font-lock-face 'info-menu-header)))
+
+ ;; Hide index line numbers
+ (goto-char (point-min))
+ (when (and not-fontified-p (Info-index-node))
+ (while (re-search-forward "[ \t\n]*(line +[0-9]+)" nil t)
+ (put-text-property (match-beginning 0) (match-end 0)
+ 'invisible t)))
- (goto-char (point-min))
- (when (and (search-forward "\n* Menu:" nil t)
- (not (string-match "\\<Index\\>" Info-current-node))
- ;; Don't take time to annotate huge menus
- (< (- (point-max) (point)) Info-fontify-maximum-menu-size))
- (let ((n 0)
- cont)
- (while (re-search-forward
- (concat "^\\* +\\(" Info-menu-entry-name-re "\\)\\(:"
- Info-node-spec-re "\\([ \t]*\\)\\)")
- nil t)
- (setq n (1+ n))
- (if (and (<= n 9) (zerop (% n 3))) ; visual aids to help with 1-9 keys
- (put-text-property (match-beginning 0)
- (1+ (match-beginning 0))
- 'font-lock-face 'info-menu-5))
- (add-text-properties
- (match-beginning 1) (match-end 1)
- (cons 'help-echo
- (cons
- (if (match-end 3)
- (concat "mouse-2: go to " (match-string 3))
- "mouse-2: go to this node")
- '(font-lock-face info-xref
- mouse-face highlight))))
- (when (eq Info-hide-note-references t)
- (put-text-property (match-beginning 2) (1- (match-end 6))
- 'invisible t)
- ;; We need a stretchable space like :align-to but with
- ;; a minimum value.
- (put-text-property (1- (match-end 6)) (match-end 6) 'display
- (if (>= 22 (- (match-end 1)
- (match-beginning 0)))
- '(space :align-to 24)
- '(space :width 2)))
- (setq cont (looking-at "."))
- (while (and (= (forward-line 1) 0)
- (looking-at "\\([ \t]+\\)[^*\n]"))
- (put-text-property (match-beginning 1) (1- (match-end 1))
- 'invisible t)
- (put-text-property (1- (match-end 1)) (match-end 1)
- 'display
- (if cont
- '(space :align-to 26)
- '(space :align-to 24)))
- (setq cont t))))))
-
- (Info-fontify-menu-headers)
- (set-buffer-modified-p nil)))))
+ ;; Fontify http and ftp references
+ (goto-char (point-min))
+ (when not-fontified-p
+ (while (re-search-forward "[hf]t?tp://[^ \t\n\"`({<>})']+" nil t)
+ (add-text-properties (match-beginning 0) (match-end 0)
+ '(font-lock-face info-xref
+ mouse-face highlight
+ help-echo "mouse-2: go to this URL"))))
+
+ (set-buffer-modified-p nil))))
\f
;; When an Info buffer is killed, make sure the associated tags buffer
"^No \".*\" in index$"))
(add-to-list 'debug-ignored-errors mess))
+;;;; Desktop support
+
+(defun Info-desktop-buffer-misc-data (desktop-dirname)
+ "Auxiliary information to be saved in desktop file."
+ (if (not (member Info-current-file '("apropos" "history" "toc")))
+ (list Info-current-file Info-current-node)))
+
+;;;###autoload
+(defun Info-restore-desktop-buffer (desktop-buffer-file-name
+ desktop-buffer-name
+ desktop-buffer-misc)
+ "Restore an info buffer specified in a desktop file."
+ (let ((first (nth 0 desktop-buffer-misc))
+ (second (nth 1 desktop-buffer-misc)))
+ (when (and first second)
+ (when desktop-buffer-name
+ (set-buffer (get-buffer-create desktop-buffer-name))
+ (Info-mode))
+ (Info-find-node first second)
+ (current-buffer))))
+
(provide 'info)
;;; arch-tag: f2480fe2-2139-40c1-a49b-6314991164ac
HCoop / bpt / emacs.git / blobdiff