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emacs/lisp/textmodes/reftex-toc.el
Pavel Janík 3afbc435ac Some fixes to follow coding conventions.
2001-07-16 07:46:48 +00:00

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;;; reftex-toc.el --- RefTeX's table of contents mode
;; Copyright (c) 1997, 1998, 1999, 2000 Free Software Foundation, Inc.
;; Author: Carsten Dominik <dominik@strw.LeidenUniv.nl>
;; Version: 4.16
;; 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, Inc., 59 Temple Place - Suite 330,
;; Boston, MA 02111-1307, USA.
;;; Commentary:
;;; Code:
(eval-when-compile (require 'cl))
(provide 'reftex-toc)
(require 'reftex)
;;;
(defvar reftex-toc-map (make-sparse-keymap)
"Keymap used for *toc* buffer.")
(defvar reftex-toc-menu)
(defun reftex-toc-mode ()
"Major mode for managing Table of Contents for LaTeX files.
This buffer was created with RefTeX.
Press `?' for a summary of important key bindings.
Here are all local bindings.
\\{reftex-toc-map}"
(interactive)
(kill-all-local-variables)
(setq major-mode 'reftex-toc-mode
mode-name "TOC")
(use-local-map reftex-toc-map)
(set (make-local-variable 'revert-buffer-function) 'reftex-toc-revert)
(set (make-local-variable 'reftex-toc-include-labels-indicator) "")
(set (make-local-variable 'reftex-toc-max-level-indicator)
(if (= reftex-toc-max-level 100)
"ALL"
(int-to-string reftex-toc-max-level)))
(setq mode-line-format
(list "---- " 'mode-line-buffer-identification
" " 'global-mode-string " (" mode-name ")"
" L<" 'reftex-toc-include-labels-indicator ">"
" I<" 'reftex-toc-include-index-indicator ">"
" T<" 'reftex-toc-max-level-indicator ">"
" -%-"))
(setq truncate-lines t)
(make-local-hook 'post-command-hook)
(make-local-hook 'pre-command-hook)
(make-local-variable 'reftex-last-follow-point)
(add-hook 'post-command-hook 'reftex-toc-post-command-hook nil t)
(add-hook 'pre-command-hook 'reftex-toc-pre-command-hook nil t)
(easy-menu-add reftex-toc-menu reftex-toc-map)
(run-hooks 'reftex-toc-mode-hook))
(defvar reftex-last-toc-file nil
"Stores the file name from which `reftex-toc' was called. For redo command.")
(defvar reftex-last-window-height nil)
(defvar reftex-toc-include-labels-indicator nil)
(defvar reftex-toc-include-index-indicator nil)
(defvar reftex-toc-max-level-indicator nil)
(defvar reftex-toc-return-marker (make-marker)
"Marker which makes it possible to return from toc to old position.")
(defconst reftex-toc-help
" AVAILABLE KEYS IN TOC BUFFER
============================
n / p next-line / previous-line
SPC Show the corresponding location of the LaTeX document.
TAB Goto the location and keep the *toc* window.
RET Goto the location and hide the *toc* window (also on mouse-2).
C-c > Display Index. With prefix arg, restrict index to current section.
q / k Hide/Kill *toc* buffer, return to position of reftex-toc command.
l i c F Toggle display of [l]abels, [i]ndex, [c]ontext, [F]ile borders.
t Change maximum toc depth (e.g. `3 t' hides levels greater than 3).
f / g Toggle follow mode on and off / Refresh *toc* buffer.
r / C-u r Reparse the LaTeX document / Reparse entire LaTeX document.
. In other window, show position from where `reftex-toc' was called.
x Switch to TOC of external document (with LaTeX package `xr').
z Jump to a specific section (e.g. '3 z' goes to section 3")
(defun reftex-toc (&optional rebuild)
"Show the table of contents for the current document.
When called with a raw C-u prefix, rescan the document first."
(interactive)
(if (or (not (string= reftex-last-toc-master (reftex-TeX-master-file)))
current-prefix-arg)
(reftex-erase-buffer "*toc*"))
(setq reftex-last-toc-file (buffer-file-name))
(setq reftex-last-toc-master (reftex-TeX-master-file))
(set-marker reftex-toc-return-marker (point))
;; If follow mode is active, arrange to delay it one command
(if reftex-toc-follow-mode
(setq reftex-toc-follow-mode 1))
(and reftex-toc-include-index-entries
(reftex-ensure-index-support))
(or reftex-support-index
(setq reftex-toc-include-index-entries nil))
;; Ensure access to scanning info and rescan buffer if prefix are is '(4)
(reftex-access-scan-info current-prefix-arg)
(let* ((this-buf (current-buffer))
(docstruct-symbol reftex-docstruct-symbol)
(xr-data (assq 'xr (symbol-value reftex-docstruct-symbol)))
(xr-alist (cons (cons "" (buffer-file-name)) (nth 1 xr-data)))
(here-I-am (if rebuild
(get 'reftex-toc :reftex-data)
(car (reftex-where-am-I))))
offset)
(if (get-buffer-window "*toc*")
(select-window (get-buffer-window "*toc*"))
(when (or (not reftex-toc-keep-other-windows)
(< (window-height) (* 2 window-min-height)))
(delete-other-windows))
(setq reftex-last-window-height (window-height)) ; remember
(split-window)
(let ((default-major-mode 'reftex-toc-mode))
(switch-to-buffer "*toc*")))
(or (eq major-mode 'reftex-toc-mode) (reftex-toc-mode))
(set (make-local-variable 'reftex-docstruct-symbol) docstruct-symbol)
(setq reftex-toc-include-labels-indicator
(if (eq reftex-toc-include-labels t)
"ALL"
reftex-toc-include-labels))
(setq reftex-toc-include-index-indicator
(if (eq reftex-toc-include-index-entries t)
"ALL"
reftex-toc-include-index-entries))
(cond
((= (buffer-size) 0)
;; buffer is empty - fill it with the table of contents
(message "Building *toc* buffer...")
(setq buffer-read-only nil)
(insert (format
"TABLE-OF-CONTENTS on %s
SPC=view TAB=goto RET=goto+hide [q]uit [r]escan [l]abels [f]ollow [x]r [?]Help
------------------------------------------------------------------------------
" (abbreviate-file-name reftex-last-toc-master)))
(if (reftex-use-fonts)
(put-text-property 1 (point) 'face reftex-toc-header-face))
(put-text-property 1 (point) 'intangible t)
(put-text-property 1 2 'xr-alist xr-alist)
(setq offset
(reftex-insert-docstruct
this-buf
t ; include toc
reftex-toc-include-labels
reftex-toc-include-index-entries
reftex-toc-include-file-boundaries
reftex-toc-include-context
nil ; counter
nil ; commented
here-I-am
"" ; xr-prefix
t ; a toc buffer
))
(run-hooks 'reftex-display-copied-context-hook)
(message "Building *toc* buffer...done.")
(setq buffer-read-only t))
(t
;; Only compute the offset
(setq offset
(or (reftex-get-offset this-buf here-I-am
(if reftex-toc-include-labels " " nil)
t
reftex-toc-include-index-entries
reftex-toc-include-file-boundaries)
(reftex-last-assoc-before-elt
'toc here-I-am
(symbol-value reftex-docstruct-symbol))))
(put 'reftex-toc :reftex-line 3)
(goto-line 3)
(beginning-of-line)))
;; Find the correct starting point
(reftex-find-start-point (point) offset (get 'reftex-toc :reftex-line))
(setq reftex-last-follow-point (point))))
(defun reftex-toc-pre-command-hook ()
;; used as pre command hook in *toc* buffer
(reftex-unhighlight 0)
(reftex-unhighlight 1))
(defun reftex-toc-post-command-hook ()
;; used in the post-command-hook for the *toc* buffer
(when (get-text-property (point) :data)
(put 'reftex-toc :reftex-data (get-text-property (point) :data))
(and (> (point) 1)
(not (get-text-property (point) 'intangible))
(memq reftex-highlight-selection '(cursor both))
(reftex-highlight 1
(or (previous-single-property-change (1+ (point)) :data)
(point-min))
(or (next-single-property-change (point) :data)
(point-max)))))
(if (integerp reftex-toc-follow-mode)
;; remove delayed action
(setq reftex-toc-follow-mode t)
(and reftex-toc-follow-mode
(not (equal reftex-last-follow-point (point)))
;; show context in other window
(setq reftex-last-follow-point (point))
(condition-case nil
(reftex-toc-visit-location nil (not reftex-revisit-to-follow))
(error t)))))
(defun reftex-re-enlarge ()
;; Enlarge windiw to a remembered size
(enlarge-window
(max 0 (- (or reftex-last-window-height (window-height))
(window-height)))))
(defun reftex-toc-show-help ()
"Show a summary of special key bindings."
(interactive)
(with-output-to-temp-buffer "*RefTeX Help*"
(princ reftex-toc-help))
(reftex-enlarge-to-fit "*RefTeX Help*" t)
;; If follow mode is active, arrange to delay it one command
(if reftex-toc-follow-mode
(setq reftex-toc-follow-mode 1)))
(defun reftex-toc-next (&optional arg)
"Move to next selectable item."
(interactive "p")
(setq reftex-callback-fwd t)
(or (eobp) (forward-char 1))
(goto-char (or (next-single-property-change (point) :data)
(point))))
(defun reftex-toc-previous (&optional arg)
"Move to previous selectable item."
(interactive "p")
(setq reftex-callback-fwd nil)
(goto-char (or (previous-single-property-change (point) :data)
(point))))
(defun reftex-toc-next-heading (&optional arg)
"Move to next table of contentes line."
(interactive "p")
(end-of-line)
(re-search-forward "^ " nil t arg)
(beginning-of-line))
(defun reftex-toc-previous-heading (&optional arg)
"Move to previous table of contentes line."
(interactive "p")
(re-search-backward "^ " nil t arg))
(defun reftex-toc-toggle-follow ()
"Toggle follow (other window follows with context)."
(interactive)
(setq reftex-last-follow-point -1)
(setq reftex-toc-follow-mode (not reftex-toc-follow-mode)))
(defun reftex-toc-toggle-file-boundary ()
"Toggle inclusion of file boundaries in *toc* buffer."
(interactive)
(setq reftex-toc-include-file-boundaries
(not reftex-toc-include-file-boundaries))
(reftex-toc-revert))
(defun reftex-toc-toggle-labels (arg)
"Toggle inclusion of labels in *toc* buffer.
With prefix ARG, prompt for a label type and include only labels of
that specific type."
(interactive "P")
(setq reftex-toc-include-labels
(if arg (reftex-query-label-type)
(not reftex-toc-include-labels)))
(reftex-toc-revert))
(defun reftex-toc-toggle-index (arg)
"Toggle inclusion of index in *toc* buffer.
With prefix arg, prompt for an index tag and include only entries of that
specific index."
(interactive "P")
(setq reftex-toc-include-index-entries
(if arg (reftex-index-select-tag)
(not reftex-toc-include-index-entries)))
(reftex-toc-revert))
(defun reftex-toc-toggle-context ()
"Toggle inclusion of label context in *toc* buffer.
Label context is only displayed when the labels are there as well."
(interactive)
(setq reftex-toc-include-context (not reftex-toc-include-context))
(reftex-toc-revert))
(defun reftex-toc-max-level (arg)
"Set the maximum level of toc lines in this buffer to value of prefix ARG.
When no prefix is given, set the max level to a large number, so that all
levels are shown. For eaxample, to set the level to 3, type `3 m'."
(interactive "P")
(setq reftex-toc-max-level (if arg
(prefix-numeric-value arg)
100))
(setq reftex-toc-max-level-indicator
(if arg (int-to-string reftex-toc-max-level) "ALL"))
(reftex-toc-revert))
(defun reftex-toc-view-line ()
"View document location in other window."
(interactive)
(reftex-toc-visit-location))
(defun reftex-toc-goto-line-and-hide ()
"Go to document location in other window. Hide the *toc* window."
(interactive)
(reftex-toc-visit-location 'hide))
(defun reftex-toc-goto-line ()
"Go to document location in other window. *toc* window stays."
(interactive)
(reftex-toc-visit-location t))
(defun reftex-toc-mouse-goto-line-and-hide (ev)
"Go to document location in other window. Hide the *toc* window."
(interactive "e")
(mouse-set-point ev)
(reftex-toc-visit-location 'hide))
(defun reftex-toc-show-calling-point ()
"Show point where reftex-toc was called from."
(interactive)
(let ((this-window (selected-window)))
(unwind-protect
(progn
(switch-to-buffer-other-window
(marker-buffer reftex-toc-return-marker))
(goto-char (marker-position reftex-toc-return-marker))
(recenter '(4)))
(select-window this-window))))
(defun reftex-toc-quit ()
"Hide the *toc* window and do not move point."
(interactive)
(or (one-window-p) (delete-window))
(switch-to-buffer (marker-buffer reftex-toc-return-marker))
(reftex-re-enlarge)
(goto-char (or (marker-position reftex-toc-return-marker) (point))))
(defun reftex-toc-quit-and-kill ()
"Kill the *toc* buffer."
(interactive)
(kill-buffer "*toc*")
(or (one-window-p) (delete-window))
(switch-to-buffer (marker-buffer reftex-toc-return-marker))
(reftex-re-enlarge)
(goto-char (marker-position reftex-toc-return-marker)))
(defun reftex-toc-display-index (&optional arg)
"Display the index buffer for the current document.
This works just like `reftex-display-index' from a LaTeX buffer.
With prefix arg 1, restrict index to the section at point."
(interactive "P")
(let ((data (get-text-property (point) :data))
(docstruct (symbol-value reftex-docstruct-symbol))
bor eor restr)
(when (equal arg 2)
(setq bor (reftex-last-assoc-before-elt 'toc data docstruct)
eor (assoc 'toc (cdr (memq bor docstruct)))
restr (list (nth 6 bor) bor eor)))
(reftex-toc-goto-line)
(reftex-display-index (if restr nil arg) restr)))
(defun reftex-toc-rescan (&rest ignore)
"Regenerate the *toc* buffer by reparsing file of section at point."
(interactive)
(if (and reftex-enable-partial-scans
(null current-prefix-arg))
(let* ((data (get-text-property (point) :data))
(what (car data))
(file (cond ((eq what 'toc) (nth 3 data))
((memq what '(eof bof file-error)) (nth 1 data))
((stringp what) (nth 3 data))
((eq what 'index) (nth 3 data))))
(line (+ (count-lines (point-min) (point)) (if (bolp) 1 0))))
(if (not file)
(error "Don't know which file to rescan. Try `C-u r'")
(put 'reftex-toc :reftex-line line)
(switch-to-buffer-other-window
(reftex-get-file-buffer-force file))
(setq current-prefix-arg '(4))
(reftex-toc t)))
(reftex-toc-Rescan))
(reftex-kill-temporary-buffers))
(defun reftex-toc-Rescan (&rest ignore)
"Regenerate the *toc* buffer by reparsing the entire document."
(interactive)
(switch-to-buffer-other-window
(reftex-get-file-buffer-force reftex-last-toc-file))
(setq current-prefix-arg '(16))
(reftex-toc t))
(defun reftex-toc-revert (&rest ignore)
"Regenerate the *toc* from the internal lists."
(interactive)
(switch-to-buffer-other-window
(reftex-get-file-buffer-force reftex-last-toc-file))
(reftex-erase-buffer "*toc*")
(setq current-prefix-arg nil)
(reftex-toc t))
(defun reftex-toc-external (&rest ignore)
"Switch to table of contents of an external document."
(interactive)
(let* ((old-buf (current-buffer))
(xr-alist (get-text-property 1 'xr-alist))
(xr-index (reftex-select-external-document
xr-alist 0)))
(switch-to-buffer-other-window (or (reftex-get-file-buffer-force
(cdr (nth xr-index xr-alist)))
(error "Cannot switch document")))
(reftex-toc)
(if (equal old-buf (current-buffer))
(message "")
(message "Switched document"))))
(defun reftex-toc-jump (arg)
"Jump to a specific section. E.g. '3 z' jumps to section 3.
Useful for large TOC's."
(interactive "P")
(goto-char (point-min))
(re-search-forward
(concat "^ *" (number-to-string (if (numberp arg) arg 1)) " ")
nil t)
(beginning-of-line))
(defun reftex-toc-visit-location (&optional final no-revisit)
;; Visit the tex file corresponding to the toc entry on the current line.
;; If FINAL is t, stay there
;; If FINAL is 'hide, hide the *toc* window.
;; Otherwise, move cursor back into *toc* window.
;; NO-REVISIT means don't visit files, just use live biffers.
;; This function is pretty clever about finding back a section heading,
;; even if the buffer is not live, or things like outline, x-symbol etc.
;; have been active.
(let* ((toc (get-text-property (point) :data))
(toc-window (selected-window))
show-window show-buffer match)
(unless toc (error "Don't know which toc line to visit"))
(cond
((eq (car toc) 'toc)
;; a toc entry
(setq match (reftex-toc-find-section toc no-revisit)))
((eq (car toc) 'index)
;; an index entry
(setq match (reftex-index-show-entry toc no-revisit)))
((memq (car toc) '(bof eof))
;; A file entry
(setq match
(let ((where (car toc))
(file (nth 1 toc)))
(if (or (not no-revisit) (reftex-get-buffer-visiting file))
(progn
(switch-to-buffer-other-window
(reftex-get-file-buffer-force file nil))
(goto-char (if (eq where 'bof) (point-min) (point-max))))
(message reftex-no-follow-message) nil))))
((stringp (car toc))
;; a label
(setq match (reftex-show-label-location toc reftex-callback-fwd
no-revisit t))))
(setq show-window (selected-window)
show-buffer (current-buffer))
(unless match
(select-window toc-window)
(error "Cannot find location"))
(select-window toc-window)
;; use the `final' parameter to decide what to do next
(cond
((eq final t)
(reftex-unhighlight 0)
(select-window show-window))
((eq final 'hide)
(reftex-unhighlight 0)
(or (one-window-p) (delete-window))
(switch-to-buffer show-buffer)
(reftex-re-enlarge))
(t nil))))
(defun reftex-toc-find-section (toc &optional no-revisit)
(let* ((file (nth 3 toc))
(marker (nth 4 toc))
(level (nth 5 toc))
(literal (nth 7 toc))
(emergency-point (nth 8 toc))
(match
(cond
((and (markerp marker) (marker-buffer marker))
;; Buffer is still live and we have the marker. Should be easy.
(switch-to-buffer-other-window (marker-buffer marker))
(goto-char (marker-position marker))
(or (looking-at (regexp-quote literal))
(looking-at (reftex-make-regexp-allow-for-ctrl-m literal))
(looking-at (reftex-make-desperate-section-regexp literal))
(looking-at (concat "\\\\"
(regexp-quote
(car
(rassq level
reftex-section-levels-all)))
"[[{]?"))))
((or (not no-revisit)
(reftex-get-buffer-visiting file))
;; Marker is lost. Use the backup method.
(switch-to-buffer-other-window
(reftex-get-file-buffer-force file nil))
(goto-char (or emergency-point (point-min)))
(or (looking-at (regexp-quote literal))
(let ((len (length literal)))
(or (reftex-nearest-match (regexp-quote literal) len)
(reftex-nearest-match
(reftex-make-regexp-allow-for-ctrl-m literal) len)
(reftex-nearest-match
(reftex-make-desperate-section-regexp literal) len)))))
(t (message reftex-no-follow-message) nil))))
(when match
(goto-char (match-beginning 0))
(if (not (= (point) (point-max))) (recenter 1))
(reftex-highlight 0 (match-beginning 0) (match-end 0) (current-buffer)))
match))
(defun reftex-make-desperate-section-regexp (old)
;; Return a regexp which will still match a section statement even if
;; x-symbol or isotex or the like have been at work in the mean time.
(let* ((n (1+ (string-match "[[{]" old)))
(new (regexp-quote (substring old 0 (1+ (string-match "[[{]" old)))))
(old (substring old n)))
(while (string-match
"\\([\r\n]\\)\\|\\(\\`\\|[ \t\n\r]\\)\\([a-zA-Z0-9]+\\)\\([ \t\n\r]\\|}\\'\\)"
old)
(if (match-beginning 1)
(setq new (concat new "[^\n\r]*[\n\r]"))
(setq new (concat new "[^\n\r]*" (match-string 3 old))))
(setq old (substring old (match-end 0))))
new))
;; Table of Contents map
(define-key reftex-toc-map (if (featurep 'xemacs) [(button2)] [(mouse-2)])
'reftex-toc-mouse-goto-line-and-hide)
(substitute-key-definition
'next-line 'reftex-toc-next reftex-toc-map global-map)
(substitute-key-definition
'previous-line 'reftex-toc-previous reftex-toc-map global-map)
(loop for x in
'(("n" . reftex-toc-next)
("p" . reftex-toc-previous)
("?" . reftex-toc-show-help)
(" " . reftex-toc-view-line)
("\C-m" . reftex-toc-goto-line-and-hide)
("\C-i" . reftex-toc-goto-line)
("\C-c>". reftex-toc-display-index)
("r" . reftex-toc-rescan)
("R" . reftex-toc-Rescan)
("g" . revert-buffer)
("q" . reftex-toc-quit)
("k" . reftex-toc-quit-and-kill)
("f" . reftex-toc-toggle-follow)
("F" . reftex-toc-toggle-file-boundary)
("i" . reftex-toc-toggle-index)
("l" . reftex-toc-toggle-labels)
("t" . reftex-toc-max-level)
("c" . reftex-toc-toggle-context)
("%" . reftex-toc-toggle-commented)
("x" . reftex-toc-external)
("z" . reftex-toc-jump)
("." . reftex-toc-show-calling-point)
("\C-c\C-n" . reftex-toc-next-heading)
("\C-c\C-p" . reftex-toc-previous-heading))
do (define-key reftex-toc-map (car x) (cdr x)))
(loop for key across "0123456789" do
(define-key reftex-toc-map (vector (list key)) 'digit-argument))
(define-key reftex-toc-map "-" 'negative-argument)
(easy-menu-define
reftex-toc-menu reftex-toc-map
"Menu for Table of Contents buffer"
'("TOC"
["Show Location" reftex-toc-view-line t]
["Go To Location" reftex-toc-goto-line t]
["Exit & Go To Location" reftex-toc-goto-line-and-hide t]
["Index" reftex-toc-display-index t]
["Quit" reftex-toc-quit t]
"--"
["External Document TOC " reftex-toc-external t]
"--"
("Update"
["Rebuilt *toc* Buffer" revert-buffer t]
["Rescan One File" reftex-toc-rescan reftex-enable-partial-scans]
["Rescan Entire Document" reftex-toc-Rescan t])
("Options"
"TOC Items"
["File Boundaries" reftex-toc-toggle-file-boundary :style toggle
:selected reftex-toc-include-file-boundaries]
["Labels" reftex-toc-toggle-labels :style toggle
:selected reftex-toc-include-labels]
["Index Entries" reftex-toc-toggle-index :style toggle
:selected reftex-toc-include-index-entries]
["Context" reftex-toc-toggle-context :style toggle
:selected reftex-toc-include-context]
"--"
["Follow Mode" reftex-toc-toggle-follow :style toggle
:selected reftex-toc-follow-mode])
"--"
["Help" reftex-toc-show-help t]))
;;; reftex-toc.el ends here
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