diff options
Diffstat (limited to 'gnu/usr.bin/texinfo/emacs/texnfo-upd.el')
| -rw-r--r-- | gnu/usr.bin/texinfo/emacs/texnfo-upd.el | 2046 |
1 files changed, 0 insertions, 2046 deletions
diff --git a/gnu/usr.bin/texinfo/emacs/texnfo-upd.el b/gnu/usr.bin/texinfo/emacs/texnfo-upd.el deleted file mode 100644 index f84cdd51496..00000000000 --- a/gnu/usr.bin/texinfo/emacs/texnfo-upd.el +++ /dev/null @@ -1,2046 +0,0 @@ -;;; Texinfo mode utilities for updating nodes and menus in Texinfo files. -;;; Copyright 1989, 1990, 1991, 1992 Free Software Foundation - -;; Author: Robert J. Chassell -;; Maintainer: bug-texinfo@prep.ai.mit.edu -;; Keywords: maint, tex, docs - -;; This file is part of GNU Emacs. - -;; GNU Emacs is free software; you can redistribute it and/or modify -;; it under the terms of the GNU General Public License as published by -;; the Free Software Foundation; either version 2, or (at your option) -;; any later version. - -;; GNU Emacs is distributed in the hope that it will be useful, -;; but WITHOUT ANY WARRANTY; without even the implied warranty of -;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -;; GNU General Public License for more details. - -;; You should have received a copy of the GNU General Public License -;; along with GNU Emacs; see the file COPYING. If not, write to -;; the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. - -;;; Commentary: - -;;; Known bug: update commands fail to ignore @ignore. - -;;; Summary: how to use the updating commands - -; The node and menu updating functions automatically - -; * insert missing `@node' lines, -; * insert the `Next', `Previous' and `Up' pointers of a node, -; * insert or update the menu for a section, -; * create a master menu for a Texinfo source file. -; -; Passed an argument, the `texinfo-update-node' and -; `texinfo-make-menu' functions do their jobs in the region. -; -; In brief, the functions for creating or updating nodes and menus, are: -; -; texinfo-update-node (&optional region-p) -; texinfo-every-node-update () -; texinfo-sequential-node-update (&optional region-p) -; -; texinfo-make-menu (&optional region-p) -; texinfo-all-menus-update () -; texinfo-master-menu () -; -; texinfo-insert-node-lines (&optional title-p) -; -; texinfo-indent-menu-description (column &optional region-p) - -; The `texinfo-column-for-description' variable specifies the column to -; which menu descriptions are indented. - -; Texinfo file structure -; ---------------------- - -; To use the updating commands, you must structure your Texinfo file -; hierarchically. Each `@node' line, with the exception of the top -; node, must be accompanied by some kind of section line, such as an -; `@chapter' or `@section' line. Each node-line/section-line -; combination must look like this: - -; @node Lists and Tables, Cross References, Structuring, Top -; @comment node-name, next, previous, up -; @chapter Making Lists and Tables - -; or like this (without the `@comment' line): - -; @node Lists and Tables, Cross References, Structuring, Top -; @chapter Making Lists and Tables - -; If the file has a `top' node, it must be called `top' or `Top' and -; be the first node in the file. - - -;;; The update node functions described in detail - -; The `texinfo-update-node' function without an argument inserts -; the correct next, previous and up pointers for the node in which -; point is located (i.e., for the node preceding point). - -; With an argument, the `texinfo-update-node' function inserts the -; correct next, previous and up pointers for the nodes inside the -; region. - -; It does not matter whether the `@node' line has pre-existing -; `Next', `Previous', or `Up' pointers in it. They are removed. - -; The `texinfo-every-node-update' function runs `texinfo-update-node' -; on the whole buffer. - -; The `texinfo-sequential-node-update' function inserts the -; immediately following and preceding node into the `Next' or -; `Previous' pointers regardless of their hierarchical level. This is -; only useful for certain kinds of text, like a novel, which you go -; through sequentially. - - -;;; The menu making functions described in detail - -; The `texinfo-make-menu' function without an argument creates or -; updates a menu for the section encompassing the node that follows -; point. With an argument, it makes or updates menus for the nodes -; within or part of the marked region. - -; Whenever an existing menu is updated, the descriptions from -; that menu are incorporated into the new menu. This is done by copying -; descriptions from the existing menu to the entries in the new menu -; that have the same node names. If the node names are different, the -; descriptions are not copied to the new menu. - -; Menu entries that refer to other Info files are removed since they -; are not a node within current buffer. This is a deficiency. - -; The `texinfo-all-menus-update' function runs `texinfo-make-menu' -; on the whole buffer. - -; The `texinfo-master-menu' function creates an extended menu located -; after the top node. (The file must have a top node.) The function -; first updates all the regular menus in the buffer (incorporating the -; descriptions from pre-existing menus), and then constructs a master -; menu that includes every entry from every other menu. (However, the -; function cannot update an already existing master menu; if one -; exists, it must be removed before calling the function.) - -; The `texinfo-indent-menu-description' function indents every -; description in the menu following point, to the specified column. -; Non-nil argument (prefix, if interactive) means indent every -; description in every menu in the region. This function does not -; indent second and subsequent lines of a multi-line description. - -; The `texinfo-insert-node-lines' function inserts `@node' before the -; `@chapter', `@section', and such like lines of a region in a Texinfo -; file where the `@node' lines are missing. -; -; With a non-nil argument (prefix, if interactive), the function not -; only inserts `@node' lines but also inserts the chapter or section -; titles as the names of the corresponding nodes; and inserts titles -; as node names in pre-existing `@node' lines that lack names. -; -; Since node names should be more concise than section or chapter -; titles, node names so inserted will need to be edited manually. - - -;;; Code: - -;;; The menu making functions - -(defun texinfo-make-menu (&optional region-p) - "Without any prefix argument, make or update a menu. -Make the menu for the section enclosing the node found following point. - -Non-nil argument (prefix, if interactive) means make or update menus -for nodes within or part of the marked region. - -Whenever a menu exists, and is being updated, the descriptions that -are associated with node names in the pre-existing menu are -incorporated into the new menu. Otherwise, the nodes' section titles -are inserted as descriptions." - - (interactive "P") - (if (not region-p) - (let ((level (texinfo-hierarchic-level))) - (texinfo-make-one-menu level) - (message "Done...updated the menu. You may save the buffer.")) - ;; else - (message "Making or updating menus in %s... " (buffer-name)) - (let ((beginning (region-beginning)) - (region-end (region-end)) - (level (progn ; find section type following point - (goto-char (region-beginning)) - (texinfo-hierarchic-level)))) - (if (= region-end beginning) - (error "Please mark a region!")) - (save-excursion - (save-restriction - (widen) - - (while (texinfo-find-lower-level-node level region-end) - (setq level (texinfo-hierarchic-level)) ; new, lower level - (texinfo-make-one-menu level)) - - (while (and (< (point) region-end) - (texinfo-find-higher-level-node level region-end)) - (setq level (texinfo-hierarchic-level)) - (while (texinfo-find-lower-level-node level region-end) - (setq level (texinfo-hierarchic-level)) ; new, lower level - (texinfo-make-one-menu level)))))) - (message "Done...updated menus. You may save the buffer."))) - -(defun texinfo-make-one-menu (level) - "Make a menu of all the appropriate nodes in this section. -`Appropriate nodes' are those associated with sections that are -at the level specified by LEVEL. Point is left at the end of menu." - (let* - ((case-fold-search t) - (beginning - (save-excursion - (goto-char (texinfo-update-menu-region-beginning level)) - (end-of-line) - (point))) - (end (texinfo-update-menu-region-end level)) - (first (texinfo-menu-first-node beginning end)) - (node-name (progn - (goto-char beginning) - (beginning-of-line) - (texinfo-copy-node-name))) - (new-menu-list (texinfo-make-menu-list beginning end level))) - (if (texinfo-old-menu-p beginning first) - (progn - (texinfo-incorporate-descriptions new-menu-list) - (texinfo-incorporate-menu-entry-names new-menu-list) - (texinfo-delete-old-menu beginning first))) - (texinfo-insert-menu new-menu-list node-name))) - -(defun texinfo-all-menus-update (&optional update-all-nodes-p) - "Update every regular menu in a Texinfo file. -Update pre-existing master menu, if there is one. - -If called with a non-nil argument, this function first updates all the -nodes in the buffer before updating the menus." - (interactive "P") - (let ((case-fold-search t) - master-menu-p) - (save-excursion - (push-mark (point-max) t) - (goto-char (point-min)) - (message "Checking for a master menu in %s ... "(buffer-name)) - (save-excursion - (if (re-search-forward texinfo-master-menu-header nil t) - ;; Remove detailed master menu listing - (progn - (setq master-menu-p t) - (goto-char (match-beginning 0)) - (let ((end-of-detailed-menu-descriptions - (save-excursion ; beginning of end menu line - (goto-char (texinfo-menu-end)) - (beginning-of-line) (forward-char -1) - (point)))) - (delete-region (point) end-of-detailed-menu-descriptions))))) - - (if update-all-nodes-p - (progn - (message "Updating all nodes in %s ... " (buffer-name)) - (sleep-for 2) - (push-mark (point-max) t) - (goto-char (point-min)) - ;; Using the mark to pass bounds this way - ;; is kludgy, but it's not worth fixing. -- rms. - (let ((mark-active t)) - (texinfo-update-node t)))) - - (message "Updating all menus in %s ... " (buffer-name)) - (sleep-for 2) - (push-mark (point-max) t) - (goto-char (point-min)) - ;; Using the mark to pass bounds this way - ;; is kludgy, but it's not worth fixing. -- rms. - (let ((mark-active t)) - (texinfo-make-menu t)) - - (if master-menu-p - (progn - (message "Updating the master menu in %s... " (buffer-name)) - (sleep-for 2) - (texinfo-master-menu nil)))) - - (message "Done...updated all the menus. You may save the buffer."))) - -(defun texinfo-find-lower-level-node (level region-end) - "Search forward from point for node at any level lower than LEVEL. -Search is limited to the end of the marked region, REGION-END, -and to the end of the menu region for the level. - -Return t if the node is found, else nil. Leave point at the beginning -of the node if one is found; else do not move point." - (let ((case-fold-search t)) - (if (and (< (point) region-end) - (re-search-forward - (concat - "\\(^@node\\).*\n" ; match node line - "\\(\\(\\(^@c\\).*\n\\)" ; match comment line, if any - "\\|" ; or - "\\(^@ifinfo[ ]*\n\\)\\)?" ; ifinfo line, if any - (eval (cdr (assoc level texinfo-update-menu-lower-regexps)))) - ;; the next higher level node marks the end of this - ;; section, and no lower level node will be found beyond - ;; this position even if region-end is farther off - (texinfo-update-menu-region-end level) - t)) - (goto-char (match-beginning 1))))) - -(defun texinfo-find-higher-level-node (level region-end) - "Search forward from point for node at any higher level than argument LEVEL. -Search is limited to the end of the marked region, REGION-END. - -Return t if the node is found, else nil. Leave point at the beginning -of the node if one is found; else do not move point." - (let ((case-fold-search t)) - (cond - ((or (string-equal "top" level) (string-equal "chapter" level)) - (if (re-search-forward "^@node [ \t]*top[ \t]*\\(,\\|$\\)" region-end t) - (progn (beginning-of-line) t))) - (t - (if (re-search-forward - (concat - "\\(^@node\\).*\n" ; match node line - "\\(\\(\\(^@c\\).*\n\\)" ; match comment line, if any - "\\|" ; or - "\\(^@ifinfo[ ]*\n\\)\\)?" ; ifinfo line, if any - (eval (cdr (assoc level texinfo-update-menu-higher-regexps)))) - region-end t) - (progn (beginning-of-line) t)))))) - - -;;; Making the list of new menu entries - -(defun texinfo-make-menu-list (beginning end level) - "Make a list of node names and their descriptions. -Point is left at the end of the menu region, but the menu is not inserted. - -First argument is position from which to start making menu list; -second argument is end of region in which to try to locate entries; -third argument is the level of the nodes that are the entries. - -Node names and descriptions are dotted pairs of strings. Each pair is -an element of the list. If the description does not exist, the -element consists only of the node name." - (goto-char beginning) - (let (new-menu-list) - (while (texinfo-menu-locate-entry-p level end) - (setq new-menu-list - (cons (cons - (texinfo-copy-node-name) - (prog1 "" (forward-line 1))) - ;; Use following to insert section titles automatically. - ;; (texinfo-copy-section-title)) - new-menu-list))) - (reverse new-menu-list))) - -(defun texinfo-menu-locate-entry-p (level search-end) - "Find a node that will be part of menu for this section. -First argument is a string such as \"section\" specifying the general -hierarchical level of the menu; second argument is a position -specifying the end of the search. - -The function returns t if the node is found, else nil. It searches -forward from point, and leaves point at the beginning of the node. - -The function finds entries of the same type. Thus `subsections' and -`unnumberedsubsecs' will appear in the same menu." - (let ((case-fold-search t)) - (if (re-search-forward - (concat - "\\(^@node\\).*\n" ; match node line - "\\(\\(\\(^@c\\).*\n\\)" ; match comment line, if any - "\\|" ; or - "\\(^@ifinfo[ ]*\n\\)\\)?" ; ifinfo line, if any - (eval - (cdr (assoc level texinfo-update-menu-same-level-regexps)))) - search-end - t) - (goto-char (match-beginning 1))))) - -(defun texinfo-copy-node-name () - "Return the node name as a string. - -Start with point at the beginning of the node line; copy the text -after the node command up to the first comma on the line, if any, and -return the text as a string. Leaves point at the beginning of the -line. If there is no node name, returns an empty string." - - (save-excursion - (buffer-substring - (progn (forward-word 1) ; skip over node command - (skip-chars-forward " \t") ; and over spaces - (point)) - (if (search-forward - "," - (save-excursion (end-of-line) (point)) t) ; bound search - (1- (point)) - (end-of-line) (point))))) - -(defun texinfo-copy-section-title () - "Return the title of the section as a string. -The title is used as a description line in the menu when one does not -already exist. - -Move point to the beginning of the appropriate section line by going -to the start of the text matched by last regexp searched for, which -must have been done by `texinfo-menu-locate-entry-p'." - - ;; could use the same re-search as in `texinfo-menu-locate-entry-p' - ;; instead of using `match-beginning'; such a variation would be - ;; more general, but would waste information already collected - - (goto-char (match-beginning 7)) ; match section name - - (buffer-substring - (progn (forward-word 1) ; skip over section type - (skip-chars-forward " \t") ; and over spaces - (point)) - (progn (end-of-line) (point)))) - - -;;; Handling the old menu - -(defun texinfo-old-menu-p (beginning first) - "Move point to the beginning of the menu for this section, if any. -Otherwise move point to the end of the first node of this section. -Return t if a menu is found, nil otherwise. - -First argument is the position of the beginning of the section in which -the menu will be located; second argument is the position of the first -node within the section. - -If no menu is found, the function inserts two newlines just before the -end of the section, and leaves point there where a menu ought to be." - (goto-char beginning) - (if (not (re-search-forward "^@menu" first 'goto-end)) - (progn (insert "\n\n") (forward-line -2) nil) - t)) - -(defun texinfo-incorporate-descriptions (new-menu-list) - "Copy the old menu line descriptions that exist to the new menu. - -Point must be at beginning of old menu. - -If the node-name of the new menu is found in the old menu, insert the -old description into the new entry. - -For this function, the new menu is a list made up of lists of dotted -pairs in which the first element of the pair is the node name and the -second element the description. The new menu is changed destructively. -The old menu is the menu as it appears in the texinfo file." - - (let ((new-menu-list-pointer new-menu-list) - (end-of-menu (texinfo-menu-end))) - (while new-menu-list - (save-excursion ; keep point at beginning of menu - (if (re-search-forward - ;; Existing nodes can have the form - ;; * NODE NAME:: DESCRIPTION - ;; or - ;; * MENU ITEM: NODE NAME. DESCRIPTION. - ;; - ;; Recognize both when looking for the description. - (concat "\\* \\(" ; so only menu entries are found - (car (car new-menu-list)) "::" - "\\|" - ".*: " (car (car new-menu-list)) "[.,\t\n]" - "\\)" - ) ; so only complete entries are found - end-of-menu - t) - (setcdr (car new-menu-list) - (texinfo-menu-copy-old-description end-of-menu)))) - (setq new-menu-list (cdr new-menu-list))) - (setq new-menu-list new-menu-list-pointer))) - -(defun texinfo-incorporate-menu-entry-names (new-menu-list) - "Copy any old menu entry names to the new menu. - -Point must be at beginning of old menu. - -If the node-name of the new menu entry cannot be found in the old -menu, do nothing. - -For this function, the new menu is a list made up of lists of dotted -pairs in which the first element of the pair is the node name and the -second element is the description (or nil). - -If we find an existing menu entry name, we change the first element of -the pair to be another dotted pair in which the car is the menu entry -name and the cdr is the node name. - -NEW-MENU-LIST is changed destructively. The old menu is the menu as it -appears in the texinfo file." - - (let ((new-menu-list-pointer new-menu-list) - (end-of-menu (texinfo-menu-end))) - (while new-menu-list - (save-excursion ; keep point at beginning of menu - (if (re-search-forward - ;; Existing nodes can have the form - ;; * NODE NAME:: DESCRIPTION - ;; or - ;; * MENU ITEM: NODE NAME. DESCRIPTION. - ;; - ;; We're interested in the second case. - (concat "\\* " ; so only menu entries are found - "\\(.*\\): " (car (car new-menu-list)) "[.,\t\n]") - end-of-menu - t) - (setcar - (car new-menu-list) ; replace the node name - (cons (buffer-substring (match-beginning 1) (match-end 1)) - (car (car new-menu-list))))) - (setq new-menu-list (cdr new-menu-list)))) - (setq new-menu-list new-menu-list-pointer))) - -(defun texinfo-menu-copy-old-description (end-of-menu) - "Return description field of old menu line as string. -Point must be located just after the node name. Point left before description. -Single argument, END-OF-MENU, is position limiting search." - (skip-chars-forward "[:.,\t\n ]+") - ;; don't copy a carriage return at line beginning with asterisk! - ;; do copy a description that begins with an `@'! - ;; !! Known bug: does not copy descriptions starting with ^|\{?* etc. - (if (and (looking-at "\\(\\w+\\|@\\)") - (not (looking-at "\\(^\\* \\|^@end menu\\)"))) - (buffer-substring - (point) - (save-excursion - (re-search-forward "\\(^\\* \\|^@end menu\\)" end-of-menu t) - (forward-line -1) - (end-of-line) ; go to end of last description line - (point))) - "")) - -(defun texinfo-menu-end () - "Return position of end of menu. Does not change location of point. -Signal an error if not end of menu." - (save-excursion - (if (re-search-forward "^@end menu" nil t) - (point) - (error "Menu does not have an end.")))) - -(defun texinfo-delete-old-menu (beginning first) - "Delete the old menu. Point must be in or after menu. -First argument is position of the beginning of the section in which -the menu will be located; second argument is the position of the first -node within the section." - ;; No third arg to search, so error if search fails. - (re-search-backward "^@menu" beginning) - (delete-region (point) - (save-excursion - (re-search-forward "^@end menu" first) - (point)))) - - -;;; Inserting new menu - -;; try 32, but perhaps 24 is better -(defvar texinfo-column-for-description 32 - "*Column at which descriptions start in a Texinfo menu.") - -(defun texinfo-insert-menu (menu-list node-name) - "Insert formatted menu at point. -Indents the first line of the description, if any, to the value of -texinfo-column-for-description. - -MENU-LIST has form: - - \(\(\"node-name1\" . \"description\"\) - \(\"node-name2\" . \"description\"\) ... \) - -However, the description field might be nil. - -Also, the node-name field might itself be a dotted pair (call it P) of -strings instead of just a string. In that case, the car of P -is the menu entry name, and the cdr of P is the node name." - - (insert "@menu\n") - (while menu-list - ;; Every menu entry starts with a star and a space. - (insert "* ") - - ;; Insert the node name (and menu entry name, if present). - (let ((node-part (car (car menu-list)))) - (if (stringp node-part) - ;; "Double colon" entry line; menu entry and node name are the same, - (insert (format "%s::" node-part)) - ;; "Single colon" entry line; menu entry and node name are different. - (insert (format "%s: %s." (car node-part) (cdr node-part))))) - - ;; Insert the description, if present. - (if (cdr (car menu-list)) - (progn - ;; Move to right place. - (indent-to texinfo-column-for-description 2) - ;; Insert description. - (insert (format "%s" (cdr (car menu-list)))))) - - (insert "\n") ; end this menu entry - (setq menu-list (cdr menu-list))) - (insert "@end menu") - (message - "Updated \"%s\" level menu following node: %s ... " level node-name)) - - -;;; Starting menu descriptions by inserting titles - -(defun texinfo-start-menu-description () - "In this menu entry, insert the node's section title as a description. -Position point at beginning of description ready for editing. -Do not insert a title if the line contains an existing description. - -You will need to edit the inserted text since a useful description -complements the node name rather than repeats it as a title does." - - (interactive) - (let (beginning end node-name title) - (save-excursion - (beginning-of-line) - (if (search-forward "* " (save-excursion (end-of-line) (point)) t) - (progn (skip-chars-forward " \t") - (setq beginning (point))) - (error "This is not a line in a menu!")) - - (cond - ;; "Double colon" entry line; menu entry and node name are the same, - ((search-forward "::" (save-excursion (end-of-line) (point)) t) - (if (looking-at "[ \t]*[^ \t\n]+") - (error "Descriptive text already exists.")) - (skip-chars-backward ": \t") - (setq node-name (buffer-substring beginning (point)))) - - ;; "Single colon" entry line; menu entry and node name are different. - ((search-forward ":" (save-excursion (end-of-line) (point)) t) - (skip-chars-forward " \t") - (setq beginning (point)) - ;; Menu entry line ends in a period, comma, or tab. - (if (re-search-forward "[.,\t]" - (save-excursion (forward-line 1) (point)) t) - (progn - (if (looking-at "[ \t]*[^ \t\n]+") - (error "Descriptive text already exists.")) - (skip-chars-backward "., \t") - (setq node-name (buffer-substring beginning (point)))) - ;; Menu entry line ends in a return. - (re-search-forward ".*\n" - (save-excursion (forward-line 1) (point)) t) - (skip-chars-backward " \t\n") - (setq node-name (buffer-substring beginning (point))) - (if (= 0 (length node-name)) - (error "No node name on this line.") - (insert ".")))) - (t (error "No node name on this line."))) - ;; Search for node that matches node name, and copy the section title. - (if (re-search-forward - (concat - "^@node[ \t]+" - node-name - ".*\n" ; match node line - "\\(" - "\\(\\(^@c \\|^@comment\\).*\n\\)" ; match comment line, if any - "\\|" ; or - "\\(^@ifinfo[ ]*\n\\)" ; ifinfo line, if any - "\\)?") - nil t) - (progn - (setq title - (buffer-substring - ;; skip over section type - (progn (forward-word 1) - ;; and over spaces - (skip-chars-forward " \t") - (point)) - (progn (end-of-line) - (skip-chars-backward " \t") - (point))))) - (error "Cannot find node to match node name in menu entry."))) - ;; Return point to the menu and insert the title. - (end-of-line) - (delete-region - (point) - (save-excursion (skip-chars-backward " \t") (point))) - (indent-to texinfo-column-for-description 2) - (save-excursion (insert title)))) - - -;;; Handling description indentation - -; Since the make-menu functions indent descriptions, these functions -; are useful primarily for indenting a single menu specially. - -(defun texinfo-indent-menu-description (column &optional region-p) - "Indent every description in menu following point to COLUMN. -Non-nil argument (prefix, if interactive) means indent every -description in every menu in the region. Does not indent second and -subsequent lines of a multi-line description." - - (interactive - "nIndent menu descriptions to (column number): \nP") - (save-excursion - (save-restriction - (widen) - (if (not region-p) - (progn - (re-search-forward "^@menu") - (texinfo-menu-indent-description column) - (message - "Indented descriptions in menu. You may save the buffer.")) - ;;else - (message "Indenting every menu description in region... ") - (goto-char (region-beginning)) - (while (and (< (point) (region-end)) - (texinfo-locate-menu-p)) - (forward-line 1) - (texinfo-menu-indent-description column)) - (message "Indenting done. You may save the buffer."))))) - -(defun texinfo-menu-indent-description (to-column-number) - "Indent the Texinfo file menu description to TO-COLUMN-NUMBER. -Start with point just after the word `menu' in the `@menu' line and -leave point on the line before the `@end menu' line. Does not indent -second and subsequent lines of a multi-line description." - (let* ((beginning-of-next-line (point))) - (while (< beginning-of-next-line - (save-excursion ; beginning of end menu line - (goto-char (texinfo-menu-end)) - (beginning-of-line) - (point))) - - (if (re-search-forward "\\* \\(.*::\\|.*: [^.,\t\n]+[.,\t]\\)" - (texinfo-menu-end) - t) - (progn - (let ((beginning-white-space (point))) - (skip-chars-forward " \t") ; skip over spaces - (if (looking-at "\\(@\\|\\w\\)+") ; if there is text - (progn - ;; remove pre-existing indentation - (delete-region beginning-white-space (point)) - (indent-to-column to-column-number)))))) - ;; position point at beginning of next line - (forward-line 1) - (setq beginning-of-next-line (point))))) - - -;;; Making the master menu - -(defun texinfo-master-menu (update-all-nodes-menus-p) - "Make a master menu for a whole Texinfo file. -Non-nil argument (prefix, if interactive) means first update all -existing nodes and menus. Remove pre-existing master menu, if there is one. - -This function creates a master menu that follows the top node. The -master menu includes every entry from all the other menus. It -replaces any existing ordinary menu that follows the top node. - -If called with a non-nil argument, this function first updates all the -menus in the buffer (incorporating descriptions from pre-existing -menus) before it constructs the master menu. - -The function removes the detailed part of an already existing master -menu. This action depends on the pre-exisitng master menu using the -standard `texinfo-master-menu-header'. - -The master menu has the following format, which is adapted from the -recommendation in the Texinfo Manual: - - * The first part contains the major nodes in the Texinfo file: the - nodes for the chapters, chapter-like sections, and the major - appendices. This includes the indices, so long as they are in - chapter-like sections, such as unnumbered sections. - - * The second and subsequent parts contain a listing of the other, - lower level menus, in order. This way, an inquirer can go - directly to a particular node if he or she is searching for - specific information. - -Each of the menus in the detailed node listing is introduced by the -title of the section containing the menu." - - (interactive "P") - (let ((case-fold-search t)) - (widen) - (goto-char (point-min)) - - ;; Move point to location after `top'. - (if (not (re-search-forward "^@node [ \t]*top[ \t]*\\(,\\|$\\)" nil t)) - (error "This buffer needs a Top node!")) - - (let ((first-chapter - (save-excursion - (or (re-search-forward "^@node" nil t) - (error "Too few nodes for a master menu!")) - (point)))) - (if (re-search-forward texinfo-master-menu-header first-chapter t) - ;; Remove detailed master menu listing - (progn - (goto-char (match-beginning 0)) - (let ((end-of-detailed-menu-descriptions - (save-excursion ; beginning of end menu line - (goto-char (texinfo-menu-end)) - (beginning-of-line) (forward-char -1) - (point)))) - (delete-region (point) end-of-detailed-menu-descriptions))))) - - (if update-all-nodes-menus-p - (progn - (message "Making a master menu in %s ...first updating all nodes... " - (buffer-name)) - (sleep-for 2) - (push-mark (point-max) t) - (goto-char (point-min)) - (texinfo-update-node t) - - (message "Updating all menus in %s ... " (buffer-name)) - (sleep-for 2) - (push-mark (point-max) t) - (goto-char (point-min)) - (texinfo-make-menu t))) - - (message "Now making the master menu in %s... " (buffer-name)) - (sleep-for 2) - (goto-char (point-min)) - (texinfo-insert-master-menu-list - (texinfo-master-menu-list)) - - ;; Remove extra newlines that texinfo-insert-master-menu-list - ;; may have inserted. - - (save-excursion - (goto-char (point-min)) - - (if (re-search-forward texinfo-master-menu-header nil t) - (progn - (goto-char (match-beginning 0)) - (insert "\n") - (delete-blank-lines) - (goto-char (point-min)))) - - (re-search-forward "^@menu") - (forward-line -1) - (delete-blank-lines) - - (re-search-forward "^@end menu") - (forward-line 1) - (delete-blank-lines)) - - (message - "Done...completed making master menu. You may save the buffer."))) - -(defun texinfo-master-menu-list () - "Return a list of menu entries and header lines for the master menu. - -Start with the menu for chapters and indices and then find each -following menu and the title of the node preceding that menu. - -The master menu list has this form: - - \(\(\(... \"entry-1-2\" \"entry-1\"\) \"title-1\"\) - \(\(... \"entry-2-2\" \"entry-2-1\"\) \"title-2\"\) - ...\) - -However, there does not need to be a title field." - - (let (master-menu-list) - (while (texinfo-locate-menu-p) - (setq master-menu-list - (cons (list - (texinfo-copy-menu) - (texinfo-copy-menu-title)) - master-menu-list))) - (reverse master-menu-list))) - -(defun texinfo-insert-master-menu-list (master-menu-list) - "Format and insert the master menu in the current buffer." - (goto-char (point-min)) - ;; Insert a master menu only after `Top' node and before next node - ;; \(or include file if there is no next node\). - (if (not (re-search-forward "^@node [ \t]*top[ \t]*\\(,\\|$\\)" nil t)) - (error "This buffer needs a Top node!")) - (let ((first-chapter - (save-excursion (re-search-forward "^@node\\|^@include") (point)))) - (if (not (re-search-forward "^@menu" first-chapter t)) - (error - "Buffer lacks ordinary `Top' menu in which to insert master."))) - (beginning-of-line) - (delete-region ; buffer must have ordinary top menu - (point) - (save-excursion (re-search-forward "^@end menu") (point))) - - (save-excursion ; leave point at beginning of menu - ;; Handle top of menu - (insert "\n@menu\n") - ;; Insert chapter menu entries - (setq this-very-menu-list (reverse (car (car master-menu-list)))) - ;; Tell user what is going on. - (message "Inserting chapter menu entry: %s ... " this-very-menu-list) - (while this-very-menu-list - (insert "* " (car this-very-menu-list) "\n") - (setq this-very-menu-list (cdr this-very-menu-list))) - - (setq master-menu-list (cdr master-menu-list)) - - ;; Only insert detailed master menu if there is one.... - (if (car (car master-menu-list)) - (insert texinfo-master-menu-header)) - - ;; Now, insert all the other menus - - ;; The menu master-menu-list has a form like this: - ;; ((("beta" "alpha") "title-A") - ;; (("delta" "gamma") "title-B")) - - (while master-menu-list - - (message - "Inserting menu for %s .... " (car (cdr (car master-menu-list)))) - ;; insert title of menu section - (insert "\n" (car (cdr (car master-menu-list))) "\n\n") - - ;; insert each menu entry - (setq this-very-menu-list (reverse (car (car master-menu-list)))) - (while this-very-menu-list - (insert "* " (car this-very-menu-list) "\n") - (setq this-very-menu-list (cdr this-very-menu-list))) - - (setq master-menu-list (cdr master-menu-list))) - - ;; Finish menu - (insert "@end menu\n\n"))) - -(defvar texinfo-master-menu-header - "\n --- The Detailed Node Listing ---\n" - "String inserted before lower level entries in Texinfo master menu. -It comes after the chapter-level menu entries.") - -(defun texinfo-locate-menu-p () - "Find the next menu in the texinfo file. -If found, leave point after word `menu' on the `@menu' line, and return t. -If a menu is not found, do not move point and return nil." - (re-search-forward "\\(^@menu\\)" nil t)) - -(defun texinfo-copy-menu-title () - "Return the title of the section preceding the menu as a string. -If such a title cannot be found, return an empty string. Do not move -point." - (let ((case-fold-search t)) - (save-excursion - (if (re-search-backward - (concat - "\\(^@top" - "\\|" ; or - texinfo-section-types-regexp ; all other section types - "\\)") - nil - t) - (progn - (beginning-of-line) - (forward-word 1) ; skip over section type - (skip-chars-forward " \t") ; and over spaces - (buffer-substring - (point) - (progn (end-of-line) (point)))) - "")))) - -(defun texinfo-copy-menu () - "Return the entries of an existing menu as a list. -Start with point just after the word `menu' in the `@menu' line -and leave point on the line before the `@end menu' line." - (let* (this-menu-list - (end-of-menu (texinfo-menu-end)) ; position of end of `@end menu' - (last-entry (save-excursion ; position of beginning of - ; last `* ' entry - (goto-char end-of-menu) - ;; handle multi-line description - (if (not (re-search-backward "^\* " nil t)) - (error "No entries in menu.")) - (point)))) - (while (< (point) last-entry) - (if (re-search-forward "^\* " end-of-menu t) - (progn - (setq this-menu-list - (cons - (buffer-substring - (point) - ;; copy multi-line descriptions - (save-excursion - (re-search-forward "\\(^\* \\|^@e\\)" nil t) - (- (point) 3))) - this-menu-list))))) - this-menu-list)) - - -;;; Determining the hierarchical level in the texinfo file - -(defun texinfo-specific-section-type () - "Return the specific type of next section, as a string. -For example, \"unnumberedsubsec\". Return \"top\" for top node. - -Searches forward for a section. Hence, point must be before the -section whose type will be found. Does not move point. Signal an -error if the node is not the top node and a section is not found." - (let ((case-fold-search t)) - (save-excursion - (cond - ((re-search-forward "^@node [ \t]*top[ \t]*\\(,\\|$\\)" -;;; Following search limit by cph but causes a bug -;;; (save-excursion -;;; (end-of-line) -;;; (point)) - nil - t) - "top") - ((re-search-forward texinfo-section-types-regexp nil t) - (buffer-substring (progn (beginning-of-line) ; copy its name - (1+ (point))) - (progn (forward-word 1) - (point)))) - (t - (error - "texinfo-specific-section-type: Chapter or section not found.")))))) - -(defun texinfo-hierarchic-level () - "Return the general hierarchal level of the next node in a texinfo file. -Thus, a subheading or appendixsubsec is of type subsection." - (let ((case-fold-search t)) - (cdr (assoc - (texinfo-specific-section-type) - texinfo-section-to-generic-alist)))) - - -;;; Locating the major positions - -(defun texinfo-update-menu-region-beginning (level) - "Locate beginning of higher level section this section is within. -Return position of the beginning of the node line; do not move point. -Thus, if this level is subsection, searches backwards for section node. -Only argument is a string of the general type of section." - (let ((case-fold-search t)) - ;; !! Known bug: if section immediately follows top node, this - ;; returns the beginning of the buffer as the beginning of the - ;; higher level section. - (cond - ((or (string-equal "top" level) - (string-equal "chapter" level)) - (save-excursion - (goto-char (point-min)) - (re-search-forward "^@node [ \t]*top[ \t]*\\(,\\|$\\)" nil t) - (beginning-of-line) - (point))) - (t - (save-excursion - (re-search-backward - (concat - "\\(^@node\\).*\n" ; match node line - "\\(\\(\\(^@c\\).*\n\\)" ; match comment line, if any - "\\|" ; or - "\\(^@ifinfo[ ]*\n\\)\\)?" ; ifinfo line, if any - (eval - (cdr (assoc level texinfo-update-menu-higher-regexps)))) - nil - 'goto-beginning) - (point)))))) - -(defun texinfo-update-menu-region-end (level) - "Locate end of higher level section this section is within. -Return position; do not move point. Thus, if this level is a -subsection, find the node for the section this subsection is within. -If level is top or chapter, returns end of file. Only argument is a -string of the general type of section." - (let ((case-fold-search t)) - (save-excursion - (if (re-search-forward - (concat - "\\(^@node\\).*\n" ; match node line - "\\(\\(\\(^@c\\).*\n\\)" ; match comment line, if any - "\\|" ; or - "\\(^@ifinfo[ ]*\n\\)\\)?" ; ifinfo line, if any - (eval - ;; Never finds end of level above chapter so goes to end. - (cdr (assoc level texinfo-update-menu-higher-regexps)))) - nil - 'goto-end) - (match-beginning 1) - (point-max))))) - -(defun texinfo-menu-first-node (beginning end) - "Locate first node of the section the menu will be placed in. -Return position; do not move point. -The menu will be located just before this position. - -First argument is the position of the beginning of the section in -which the menu will be located; second argument is the position of the -end of that region; it limits the search." - - (save-excursion - (goto-char beginning) - (forward-line 1) - (re-search-forward "^@node" end t) - (beginning-of-line) - (point))) - - -;;; Alists and regular expressions for defining hierarchical levels - -(defvar texinfo-section-to-generic-alist - '(("top" . "top") - - ("chapter" . "chapter") - ("unnumbered" . "chapter") - ("majorheading" . "chapter") - ("chapheading" . "chapter") - ("appendix" . "chapter") - - ("section" . "section") - ("unnumberedsec" . "section") - ("heading" . "section") - ("appendixsec" . "section") - - ("subsection" . "subsection") - ("unnumberedsubsec" . "subsection") - ("subheading" . "subsection") - ("appendixsubsec" . "subsection") - - ("subsubsection" . "subsubsection") - ("unnumberedsubsubsec" . "subsubsection") - ("subsubheading" . "subsubsection") - ("appendixsubsubsec" . "subsubsection")) - "*An alist of specific and corresponding generic Texinfo section types. -The keys are strings specifying specific types of section; the values -are strings of their corresponding general types.") - -;; We used to look for just sub, but that found @subtitle. -(defvar texinfo-section-types-regexp - "^@\\(chapter \\|sect\\|subs\\|subh\\|unnum\\|major\\|chapheading \\|heading \\|appendix\\)" - "Regexp matching chapter, section, other headings (but not the top node).") - -(defvar texinfo-chapter-level-regexp - "chapter\\|unnumbered \\|appendix \\|majorheading\\|chapheading" - "Regular expression matching just the Texinfo chapter level headings.") - -(defvar texinfo-section-level-regexp - "section\\|unnumberedsec\\|heading \\|appendixsec" - "Regular expression matching just the Texinfo section level headings.") - -(defvar texinfo-subsection-level-regexp - "subsection\\|unnumberedsubsec\\|subheading\\|appendixsubsec" - "Regular expression matching just the Texinfo subsection level headings.") - -(defvar texinfo-subsubsection-level-regexp - "subsubsection\\|unnumberedsubsubsec\\|subsubheading\\|appendixsubsubsec" - "Regular expression matching just the Texinfo subsubsection level headings.") - -(defvar texinfo-update-menu-same-level-regexps - '(("top" . "top[ \t]+") - ("chapter" . - (concat "\\(^@\\)\\(" texinfo-chapter-level-regexp "\\)[ \t]*")) - ("section" . - (concat "\\(^@\\)\\(" texinfo-section-level-regexp "\\)[ \t]*")) - ("subsection" . - (concat "\\(^@\\)\\(" texinfo-subsection-level-regexp "\\)[ \t]+")) - ("subsubsection" . - (concat "\\(^@\\)\\(" texinfo-subsubsection-level-regexp "\\)[ \t]+"))) - "*Regexps for searching for same level sections in a Texinfo file. -The keys are strings specifying the general hierarchical level in the -document; the values are regular expressions.") - -(defvar texinfo-update-menu-higher-regexps - '(("top" . "^@node [ \t]*DIR") - ("chapter" . "^@node [ \t]*top[ \t]*\\(,\\|$\\)") - ("section" . - (concat - "\\(^@\\(" - texinfo-chapter-level-regexp - "\\)[ \t]*\\)")) - ("subsection" . - (concat - "\\(^@\\(" - texinfo-section-level-regexp - "\\|" - texinfo-chapter-level-regexp - "\\)[ \t]*\\)")) - ("subsubsection" . - (concat - "\\(^@\\(" - texinfo-subsection-level-regexp - "\\|" - texinfo-section-level-regexp - "\\|" - texinfo-chapter-level-regexp - "\\)[ \t]*\\)"))) - "*Regexps for searching for higher level sections in a Texinfo file. -The keys are strings specifying the general hierarchical level in the -document; the values are regular expressions.") - -(defvar texinfo-update-menu-lower-regexps - '(("top" . - (concat - "\\(^@\\(" - texinfo-chapter-level-regexp - "\\|" - texinfo-section-level-regexp - "\\|" - texinfo-subsection-level-regexp - "\\|" - texinfo-subsubsection-level-regexp - "\\)[ \t]*\\)")) - ("chapter" . - (concat - "\\(^@\\(" - texinfo-section-level-regexp - "\\|" - texinfo-subsection-level-regexp - "\\|" - texinfo-subsubsection-level-regexp - "\\)[ \t]*\\)")) - ("section" . - (concat - "\\(^@\\(" - texinfo-subsection-level-regexp - "\\|" - texinfo-subsubsection-level-regexp - "\\)[ \t]+\\)")) - ("subsection" . - (concat - "\\(^@\\(" - texinfo-subsubsection-level-regexp - "\\)[ \t]+\\)")) - ("subsubsection" . "nothing lower")) - "*Regexps for searching for lower level sections in a Texinfo file. -The keys are strings specifying the general hierarchical level in the -document; the values are regular expressions.") - - -;;; Updating a node - -;;;###autoload -(defun texinfo-update-node (&optional region-p) - "Without any prefix argument, update the node in which point is located. -Non-nil argument (prefix, if interactive) means update the nodes in the -marked region. - -The functions for creating or updating nodes and menus, and their -keybindings, are: - - texinfo-update-node (&optional region-p) \\[texinfo-update-node] - texinfo-every-node-update () \\[texinfo-every-node-update] - texinfo-sequential-node-update (&optional region-p) - - texinfo-make-menu (&optional region-p) \\[texinfo-make-menu] - texinfo-all-menus-update () \\[texinfo-all-menus-update] - texinfo-master-menu () - - texinfo-indent-menu-description (column &optional region-p) - -The `texinfo-column-for-description' variable specifies the column to -which menu descriptions are indented. Its default value is 32." - - (interactive "P") - (if (not region-p) - ;; update a single node - (let ((auto-fill-function nil) (auto-fill-hook nil)) - (if (not (re-search-backward "^@node" (point-min) t)) - (error "Node line not found before this position.")) - (texinfo-update-the-node) - (message "Done...updated the node. You may save the buffer.")) - ;; else - (let ((auto-fill-function nil) - (auto-fill-hook nil) - (beginning (region-beginning)) - (end (region-end))) - (if (= end beginning) - (error "Please mark a region!")) - (save-restriction - (narrow-to-region beginning end) - (goto-char beginning) - (push-mark (point) t) - (while (re-search-forward "^@node" (point-max) t) - (beginning-of-line) - (texinfo-update-the-node)) - (message "Done...updated nodes in region. You may save the buffer."))))) - -;;;###autoload -(defun texinfo-every-node-update () - "Update every node in a Texinfo file." - (interactive) - (save-excursion - (push-mark (point-max) t) - (goto-char (point-min)) - ;; Using the mark to pass bounds this way - ;; is kludgy, but it's not worth fixing. -- rms. - (let ((mark-active t)) - (texinfo-update-node t)) - (message "Done...updated every node. You may save the buffer."))) - -(defun texinfo-update-the-node () - "Update one node. Point must be at the beginning of node line. -Leave point at the end of the node line." - (texinfo-check-for-node-name) - (texinfo-delete-existing-pointers) - (message "Updating node: %s ... " (texinfo-copy-node-name)) - (save-restriction - (widen) - (let* - ((case-fold-search t) - (level (texinfo-hierarchic-level)) - (beginning (texinfo-update-menu-region-beginning level)) - (end (texinfo-update-menu-region-end level))) - (if (string-equal level "top") - (texinfo-top-pointer-case) - ;; else - (texinfo-insert-pointer beginning end level 'next) - (texinfo-insert-pointer beginning end level 'previous) - (texinfo-insert-pointer beginning end level 'up) - (texinfo-clean-up-node-line))))) - -(defun texinfo-top-pointer-case () - "Insert pointers in the Top node. This is a special case. - -The `Next' pointer is a pointer to a chapter or section at a lower -hierarchical level in the file. The `Previous' and `Up' pointers are -to `(dir)'. Point must be at the beginning of the node line, and is -left at the end of the node line." - - (texinfo-clean-up-node-line) - (insert ", " - (save-excursion - ;; There may be an @chapter or other such command between - ;; the top node line and the next node line, as a title - ;; for an `ifinfo' section. This @chapter command must - ;; must be skipped. So the procedure is to search for - ;; the next `@node' line, and then copy its name. - (if (re-search-forward "^@node" nil t) - (progn - (beginning-of-line) - (texinfo-copy-node-name)) - " ")) - ", (dir), (dir)")) - -(defun texinfo-check-for-node-name () - "Determine whether the node has a node name. Prompt for one if not. -Point must be at beginning of node line. Does not move point." - (save-excursion - (let ((initial (texinfo-copy-next-section-title))) - ;; This is not clean. Use `interactive' to read the arg. - (forward-word 1) ; skip over node command - (skip-chars-forward " \t") ; and over spaces - (if (not (looking-at "[^,\t\n ]+")) ; regexp based on what Info looks for - ; alternatively, use "[a-zA-Z]+" - (let ((node-name - (read-from-minibuffer - "Node name (use no @, commas, colons, or apostrophes): " - initial))) - (insert " " node-name)))))) - -(defun texinfo-delete-existing-pointers () - "Delete `Next', `Previous', and `Up' pointers. -Starts from the current position of the cursor, and searches forward -on the line for a comma and if one is found, deletes the rest of the -line, including the comma. Leaves point at beginning of line." - (let ((eol-point (save-excursion (end-of-line) (point)))) - (if (search-forward "," eol-point t) - (delete-region (1- (point)) eol-point))) - (beginning-of-line)) - -(defun texinfo-find-pointer (beginning end level direction) - "Move point to section associated with next, previous, or up pointer. -Return type of pointer (either 'normal or 'no-pointer). - -The first and second arguments bound the search for a pointer to the -beginning and end, respectively, of the enclosing higher level -section. The third argument is a string specifying the general kind -of section such as \"chapter\ or \"section\". When looking for the -`Next' pointer, the section found will be at the same hierarchical -level in the Texinfo file; when looking for the `Previous' pointer, -the section found will be at the same or higher hierarchical level in -the Texinfo file; when looking for the `Up' pointer, the section found -will be at some level higher in the Texinfo file. The fourth argument -\(one of 'next, 'previous, or 'up\) specifies whether to find the -`Next', `Previous', or `Up' pointer." - (let ((case-fold-search t)) - (cond ((eq direction 'next) - (forward-line 3) ; skip over current node - ;; Search for section commands accompanied by node lines; - ;; ignore section commands in the middle of nodes. - (if (re-search-forward - ;; A `Top' node is never a next pointer, so won't find it. - (concat - ;; Match node line. - "\\(^@node\\).*\n" - ;; Match comment or ifinfo line, if any - "\\(\\(\\(^@c\\).*\n\\)\\|\\(^@ifinfo[ ]*\n\\)\\)?" - (eval - (cdr (assoc level texinfo-update-menu-same-level-regexps)))) - end - t) - 'normal - 'no-pointer)) - ((eq direction 'previous) - (if (re-search-backward - (concat - "\\(" - ;; Match node line. - "\\(^@node\\).*\n" - ;; Match comment or ifinfo line, if any - "\\(\\(\\(^@c\\).*\n\\)\\|\\(^@ifinfo[ ]*\n\\)\\)?" - (eval - (cdr (assoc level texinfo-update-menu-same-level-regexps))) - "\\|" - ;; Match node line. - "\\(^@node\\).*\n" - ;; Match comment or ifinfo line, if any - "\\(\\(\\(^@c\\).*\n\\)\\|\\(^@ifinfo[ ]*\n\\)\\)?" - (eval - (cdr (assoc level texinfo-update-menu-higher-regexps))) - "\\|" - ;; Handle `Top' node specially. - "^@node [ \t]*top[ \t]*\\(,\\|$\\)" - "\\)") - beginning - t) - 'normal - 'no-pointer)) - ((eq direction 'up) - (if (re-search-backward - (concat - "\\(" - ;; Match node line. - "\\(^@node\\).*\n" - ;; Match comment or ifinfo line, if any - "\\(\\(\\(^@c\\).*\n\\)\\|\\(^@ifinfo[ ]*\n\\)\\)?" - (eval (cdr (assoc level texinfo-update-menu-higher-regexps))) - "\\|" - ;; Handle `Top' node specially. - "^@node [ \t]*top[ \t]*\\(,\\|$\\)" - "\\)") - (save-excursion - (goto-char beginning) - (beginning-of-line) - (point)) - t) - 'normal - 'no-pointer)) - (t - (error "texinfo-find-pointer: lack proper arguments"))))) - -(defun texinfo-pointer-name (kind) - "Return the node name preceding the section command. -The argument is the kind of section, either normal or no-pointer." - (let (name) - (cond ((eq kind 'normal) - (end-of-line) ; this handles prev node top case - (re-search-backward ; when point is already - "^@node" ; at the beginning of @node line - (save-excursion (forward-line -3)) - t) - (setq name (texinfo-copy-node-name))) - ((eq kind 'no-pointer) - (setq name " "))) ; put a blank in the pointer slot - name)) - -(defun texinfo-insert-pointer (beginning end level direction) - "Insert the `Next', `Previous' or `Up' node name at point. -Move point forward. - -The first and second arguments bound the search for a pointer to the -beginning and end, respectively, of the enclosing higher level -section. The third argument is the hierarchical level of the Texinfo -file, a string such as \"section\". The fourth argument is direction -towards which the pointer is directed, one of `next, `previous, or -'up." - - (end-of-line) - (insert - ", " - (save-excursion - (texinfo-pointer-name - (texinfo-find-pointer beginning end level direction))))) - -(defun texinfo-clean-up-node-line () - "Remove extra commas, if any, at end of node line." - (end-of-line) - (skip-chars-backward ", ") - (delete-region (point) (save-excursion (end-of-line) (point)))) - - -;;; Updating nodes sequentially -; These sequential update functions insert `Next' or `Previous' -; pointers that point to the following or preceding nodes even if they -; are at higher or lower hierarchical levels. This means that if a -; section contains one or more subsections, the section's `Next' -; pointer will point to the subsection and not the following section. -; (The subsection to which `Next' points will most likely be the first -; item on the section's menu.) - -;;;###autoload -(defun texinfo-sequential-node-update (&optional region-p) - "Update one node (or many) in a Texinfo file with sequential pointers. - -This function causes the `Next' or `Previous' pointer to point to the -immediately preceding or following node, even if it is at a higher or -lower hierarchical level in the document. Continually pressing `n' or -`p' takes you straight through the file. - -Without any prefix argument, update the node in which point is located. -Non-nil argument (prefix, if interactive) means update the nodes in the -marked region. - -This command makes it awkward to navigate among sections and -subsections; it should be used only for those documents that are meant -to be read like a novel rather than a reference, and for which the -Info `g*' command is inadequate." - - (interactive "P") - (if (not region-p) - ;; update a single node - (let ((auto-fill-function nil) (auto-fill-hook nil)) - (if (not (re-search-backward "^@node" (point-min) t)) - (error "Node line not found before this position.")) - (texinfo-sequentially-update-the-node) - (message - "Done...sequentially updated the node . You may save the buffer.")) - ;; else - (let ((auto-fill-function nil) - (auto-fill-hook nil) - (beginning (region-beginning)) - (end (region-end))) - (if (= end beginning) - (error "Please mark a region!")) - (save-restriction - (narrow-to-region beginning end) - (goto-char beginning) - (push-mark (point) t) - (while (re-search-forward "^@node" (point-max) t) - (beginning-of-line) - (texinfo-sequentially-update-the-node)) - (message - "Done...updated the nodes in sequence. You may save the buffer."))))) - -(defun texinfo-sequentially-update-the-node () - "Update one node such that the pointers are sequential. -A `Next' or `Previous' pointer points to any preceding or following node, -regardless of its hierarchical level." - - (texinfo-check-for-node-name) - (texinfo-delete-existing-pointers) - (message - "Sequentially updating node: %s ... " (texinfo-copy-node-name)) - (save-restriction - (widen) - (let* - ((case-fold-search t) - (level (texinfo-hierarchic-level))) - (if (string-equal level "top") - (texinfo-top-pointer-case) - ;; else - (texinfo-sequentially-insert-pointer level 'next) - (texinfo-sequentially-insert-pointer level 'previous) - (texinfo-sequentially-insert-pointer level 'up) - (texinfo-clean-up-node-line))))) - -(defun texinfo-sequentially-find-pointer (level direction) - "Find next or previous pointer sequentially in Texinfo file, or up pointer. -Move point to section associated with the pointer. Find point even if -it is in a different section. - -Return type of pointer (either 'normal or 'no-pointer). - -The first argument is a string specifying the general kind of section -such as \"chapter\ or \"section\". The section found will be at the -same hierarchical level in the Texinfo file, or, in the case of the up -pointer, some level higher. The second argument (one of 'next, -'previous, or 'up) specifies whether to find the `Next', `Previous', -or `Up' pointer." - (let ((case-fold-search t)) - (cond ((eq direction 'next) - (forward-line 3) ; skip over current node - (if (re-search-forward - texinfo-section-types-regexp - (point-max) - t) - 'normal - 'no-pointer)) - ((eq direction 'previous) - (if (re-search-backward - texinfo-section-types-regexp - (point-min) - t) - 'normal - 'no-pointer)) - ((eq direction 'up) - (if (re-search-backward - (eval (cdr (assoc level texinfo-update-menu-higher-regexps))) - beginning - t) - 'normal - 'no-pointer)) - (t - (error "texinfo-sequential-find-pointer: lack proper arguments"))))) - -(defun texinfo-sequentially-insert-pointer (level direction) - "Insert the `Next', `Previous' or `Up' node name at point. -Move point forward. - -The first argument is the hierarchical level of the Texinfo file, a -string such as \"section\". The second argument is direction, one of -`next, `previous, or 'up." - - (end-of-line) - (insert - ", " - (save-excursion - (texinfo-pointer-name - (texinfo-sequentially-find-pointer level direction))))) - - -;;; Inserting `@node' lines -; The `texinfo-insert-node-lines' function inserts `@node' lines as needed -; before the `@chapter', `@section', and such like lines of a region -; in a Texinfo file. - -(defun texinfo-insert-node-lines (beginning end &optional title-p) - "Insert missing `@node' lines in region of Texinfo file. -Non-nil argument (prefix, if interactive) means also to insert the -section titles as node names; and also to insert the section titles as -node names in pre-existing @node lines that lack names." - (interactive "r\nP") - - ;; Use marker; after inserting node lines, leave point at end of - ;; region and mark at beginning. - - (let (beginning-marker end-marker title last-section-position) - - ;; Save current position on mark ring and set mark to end. - (push-mark end t) - (setq end-marker (mark-marker)) - - (goto-char beginning) - (while (re-search-forward - texinfo-section-types-regexp - end-marker - 'end) - ;; Copy title if desired. - (if title-p - (progn - (beginning-of-line) - (forward-word 1) - (skip-chars-forward " \t") - (setq title (buffer-substring - (point) - (save-excursion (end-of-line) (point)))))) - ;; Insert node line if necessary. - (if (re-search-backward - "^@node" - ;; Avoid finding previous node line if node lines are close. - (or last-section-position - (save-excursion (forward-line -2) (point))) t) - ;; @node is present, and point at beginning of that line - (forward-word 1) ; Leave point just after @node. - ;; Else @node missing; insert one. - (beginning-of-line) ; Beginning of `@section' line. - (insert "@node\n") - (backward-char 1)) ; Leave point just after `@node'. - ;; Insert title if desired. - (if title-p - (progn - (skip-chars-forward " \t") - ;; Use regexp based on what info looks for - ;; (alternatively, use "[a-zA-Z]+"); - ;; this means we only insert a title if none exists. - (if (not (looking-at "[^,\t\n ]+")) - (progn - (beginning-of-line) - (forward-word 1) - (insert " " title) - (message "Inserted title %s ... " title))))) - ;; Go forward beyond current section title. - (re-search-forward texinfo-section-types-regexp - (save-excursion (forward-line 3) (point)) t) - (setq last-section-position (point)) - (forward-line 1)) - - ;; Leave point at end of region, mark at beginning. - (set-mark beginning) - - (if title-p - (message - "Done inserting node lines and titles. You may save the buffer.") - (message "Done inserting node lines. You may save the buffer.")))) - - -;;; Update and create menus for multi-file Texinfo sources - -;; 1. M-x texinfo-multiple-files-update -;; -;; Read the include file list of an outer Texinfo file and -;; update all highest level nodes in the files listed and insert a -;; main menu in the outer file after its top node. - -;; 2. C-u M-x texinfo-multiple-files-update -;; -;; Same as 1, but insert a master menu. (Saves reupdating lower -;; level menus and nodes.) This command simply reads every menu, -;; so if the menus are wrong, the master menu will be wrong. -;; Similarly, if the lower level node pointers are wrong, they -;; will stay wrong. - -;; 3. C-u 2 M-x texinfo-multiple-files-update -;; -;; Read the include file list of an outer Texinfo file and -;; update all nodes and menus in the files listed and insert a -;; master menu in the outer file after its top node. - -;;; Note: these functions: -;;; -;;; * Do not save or delete any buffers. You may fill up your memory. -;;; * Do not handle any pre-existing nodes in outer file. -;;; Hence, you may need a file for indices. - - -;;; Auxiliary functions for multiple file updating - -(defun texinfo-multi-file-included-list (outer-file) - "Return a list of the included files in OUTER-FILE." - (let ((included-file-list (list outer-file)) - start) - (save-excursion - (switch-to-buffer (find-file-noselect outer-file)) - (widen) - (goto-char (point-min)) - (while (re-search-forward "^@include" nil t) - (skip-chars-forward " \t") - (setq start (point)) - (end-of-line) - (skip-chars-backward " \t") - (setq included-file-list - (cons (buffer-substring start (point)) - included-file-list))) - (nreverse included-file-list)))) - -(defun texinfo-copy-next-section-title () - "Return the name of the immediately following section as a string. - -Start with point at the beginning of the node line. Leave point at the -same place. If there is no title, returns an empty string." - - (save-excursion - (end-of-line) - (let ((node-end (or - (save-excursion - (if (re-search-forward "\\(^@node\\)" nil t) - (match-beginning 0))) - (point-max)))) - (if (re-search-forward texinfo-section-types-regexp node-end t) - (progn - (beginning-of-line) - ;; copy title - (let ((title - (buffer-substring - (progn (forward-word 1) ; skip over section type - (skip-chars-forward " \t") ; and over spaces - (point)) - (progn (end-of-line) (point))))) - title)) - "")))) - -(defun texinfo-multi-file-update (files &optional update-everything) - "Update first node pointers in each file in FILES. -Return a list of the node names. - -The first file in the list is an outer file; the remaining are -files included in the outer file with `@include' commands. - -If optional arg UPDATE-EVERYTHING non-nil, update every menu and -pointer in each of the included files. - -Also update the `Top' level node pointers of the outer file. - -Requirements: - - * the first file in the FILES list must be the outer file, - * each of the included files must contain exactly one highest - hierarchical level node, - * this node must be the first node in the included file, - * each highest hierarchical level node must be of the same type. - -Thus, normally, each included file contains one, and only one, -chapter." - -; The menu-list has the form: -; -; \(\(\"node-name1\" . \"title1\"\) -; \(\"node-name2\" . \"title2\"\) ... \) -; -; However, there does not need to be a title field and this function -; does not fill it; however a comment tells you how to do so. -; You would use the title field if you wanted to insert titles in the -; description slot of a menu as a description. - - (let ((case-fold-search t) - menu-list) - - ;; Find the name of the first node of the first included file. - (switch-to-buffer (find-file-noselect (car (cdr files)))) - (widen) - (goto-char (point-min)) - (if (not (re-search-forward "^@node" nil t)) - (error "No `@node' line found in %s !" (buffer-name))) - (beginning-of-line) - (texinfo-check-for-node-name) - (setq next-node-name (texinfo-copy-node-name)) - - (setq menu-list - (cons (cons - next-node-name - (prog1 "" (forward-line 1))) - ;; Use following to insert section titles automatically. - ;; (texinfo-copy-next-section-title) - menu-list)) - - ;; Go to outer file - (switch-to-buffer (find-file-noselect (car files))) - (goto-char (point-min)) - (if (not (re-search-forward "^@node [ \t]*top[ \t]*\\(,\\|$\\)" nil t)) - (error "This buffer needs a Top node!")) - (beginning-of-line) - (texinfo-delete-existing-pointers) - (end-of-line) - (insert ", " next-node-name ", (dir), (dir)") - (beginning-of-line) - (setq previous-node-name "Top") - (setq files (cdr files)) - - (while files - - (if (not (cdr files)) - ;; No next file - (setq next-node-name "") - ;; Else, - ;; find the name of the first node in the next file. - (switch-to-buffer (find-file-noselect (car (cdr files)))) - (widen) - (goto-char (point-min)) - (if (not (re-search-forward "^@node" nil t)) - (error "No `@node' line found in %s !" (buffer-name))) - (beginning-of-line) - (texinfo-check-for-node-name) - (setq next-node-name (texinfo-copy-node-name)) - (setq menu-list - (cons (cons - next-node-name - (prog1 "" (forward-line 1))) - ;; Use following to insert section titles automatically. - ;; (texinfo-copy-next-section-title) - menu-list))) - - ;; Go to node to be updated. - (switch-to-buffer (find-file-noselect (car files))) - (goto-char (point-min)) - (if (not (re-search-forward "^@node" nil t)) - (error "No `@node' line found in %s !" (buffer-name))) - (beginning-of-line) - - ;; Update other menus and nodes if requested. - (if update-everything (texinfo-all-menus-update t)) - - (beginning-of-line) - (texinfo-delete-existing-pointers) - (end-of-line) - (insert ", " next-node-name ", " previous-node-name ", " up-node-name) - - (beginning-of-line) - (setq previous-node-name (texinfo-copy-node-name)) - - (setq files (cdr files))) - (nreverse menu-list))) - -(defun texinfo-multi-files-insert-main-menu (menu-list) - "Insert formatted main menu at point. -Indents the first line of the description, if any, to the value of -texinfo-column-for-description." - - (insert "@menu\n") - (while menu-list - ;; Every menu entry starts with a star and a space. - (insert "* ") - - ;; Insert the node name (and menu entry name, if present). - (let ((node-part (car (car menu-list)))) - (if (stringp node-part) - ;; "Double colon" entry line; menu entry and node name are the same, - (insert (format "%s::" node-part)) - ;; "Single colon" entry line; menu entry and node name are different. - (insert (format "%s: %s." (car node-part) (cdr node-part))))) - - ;; Insert the description, if present. - (if (cdr (car menu-list)) - (progn - ;; Move to right place. - (indent-to texinfo-column-for-description 2) - ;; Insert description. - (insert (format "%s" (cdr (car menu-list)))))) - - (insert "\n") ; end this menu entry - (setq menu-list (cdr menu-list))) - (insert "@end menu")) - -(defun texinfo-multi-file-master-menu-list (files-list) - "Return master menu list from files in FILES-LIST. -Menu entries in each file collected using `texinfo-master-menu-list'. - -The first file in FILES-LIST must be the outer file; the others must -be the files included within it. A main menu must already exist." - (save-excursion - (let (master-menu-list) - (while files-list - (switch-to-buffer (find-file-noselect (car files-list))) - (message "Working on: %s " (current-buffer)) - (goto-char (point-min)) - (setq master-menu-list - (append master-menu-list (texinfo-master-menu-list))) - (setq files-list (cdr files-list))) - master-menu-list))) - - -;;; The multiple-file update function - -(defun texinfo-multiple-files-update - (outer-file &optional update-everything make-master-menu) - "Update first node pointers in each file included in OUTER-FILE; -create or update the `Top' level node pointers and the main menu in -the outer file that refers to such nodes. This does not create or -update menus or pointers within the included files. - -With optional MAKE-MASTER-MENU argument (prefix arg, if interactive), -insert a master menu in OUTER-FILE in addition to creating or updating -pointers in the first @node line in each included file and creating or -updating the `Top' level node pointers of the outer file. This does -not create or update other menus and pointers within the included -files. - -With optional UPDATE-EVERYTHING argument (numeric prefix arg, if -interactive), update all the menus and all the `Next', `Previous', and -`Up' pointers of all the files included in OUTER-FILE before inserting -a master menu in OUTER-FILE. Also, update the `Top' level node -pointers of OUTER-FILE. - -Notes: - - * this command does NOT save any files--you must save the - outer file and any modified, included files. - - * except for the `Top' node, this command does NOT handle any - pre-existing nodes in the outer file; hence, indices must be - enclosed in an included file. - -Requirements: - - * each of the included files must contain exactly one highest - hierarchical level node, - * this highest node must be the first node in the included file, - * each highest hierarchical level node must be of the same type. - -Thus, normally, each included file contains one, and only one, -chapter." - - (interactive (cons - (read-string - "Name of outer `include' file: " - (buffer-file-name)) - (cond ((not current-prefix-arg) - '(nil nil)) - ((listp current-prefix-arg) - '(t nil)) ; make-master-menu - ((numberp current-prefix-arg) - '(t t)) ; update-everything - ))) - - (let* ((included-file-list (texinfo-multi-file-included-list outer-file)) - (files included-file-list) - main-menu-list - next-node-name - previous-node-name - (up-node-name "Top")) - -;;; Update the pointers -;;; and collect the names of the nodes and titles - (setq main-menu-list (texinfo-multi-file-update files update-everything)) - -;;; Insert main menu - - ;; Go to outer file - (switch-to-buffer (find-file-noselect (car included-file-list))) - (if (texinfo-old-menu-p - (point-min) - (save-excursion - (re-search-forward "^@include") - (beginning-of-line) - (point))) - - ;; If found, leave point after word `menu' on the `@menu' line. - (progn - (texinfo-incorporate-descriptions main-menu-list) - ;; Delete existing menu. - (beginning-of-line) - (delete-region - (point) - (save-excursion (re-search-forward "^@end menu") (point))) - ;; Insert main menu - (texinfo-multi-files-insert-main-menu main-menu-list)) - - ;; Else no current menu; insert it before `@include' - (texinfo-multi-files-insert-main-menu main-menu-list)) - -;;; Insert master menu - - (if make-master-menu - (progn - ;; First, removing detailed part of any pre-existing master menu - (goto-char (point-min)) - (if (re-search-forward texinfo-master-menu-header nil t) - ;; Remove detailed master menu listing - (progn - (goto-char (match-beginning 0)) - (let ((end-of-detailed-menu-descriptions - (save-excursion ; beginning of end menu line - (goto-char (texinfo-menu-end)) - (beginning-of-line) (forward-char -1) - (point)))) - (delete-region (point) end-of-detailed-menu-descriptions)))) - - ;; Create a master menu and insert it - (texinfo-insert-master-menu-list - (texinfo-multi-file-master-menu-list - included-file-list))))) - - ;; Remove unwanted extra lines. - (save-excursion - (goto-char (point-min)) - - (re-search-forward "^@menu") - (forward-line -1) - (insert "\n") ; Ensure at least one blank line. - (delete-blank-lines) - - (re-search-forward "^@end menu") - (forward-line 1) - (insert "\n") ; Ensure at least one blank line. - (delete-blank-lines)) - - (message "Multiple files updated.")) - - -;;; Place `provide' at end of file. -(provide 'texnfo-upd) - -;;; texnfo-upd.el ends here |