yuuji@287: ;;; yatexsec.el --- YaTeX sectioning browser
yuuji@287: ;;; 
yuuji@451: ;;; (c) 1994-2017 by HIROSE Yuuji [yuuji@yatex.org]
yuuji@532: ;;; Last modified Wed May 30 13:29:50 2018 on firestorm
yuuji@366: ;;; $Id$
yuuji@23: 
yuuji@287: ;;; Code:
yuuji@23: (defvar YaTeX-sectioning-level
yuuji@49:   '(("part" . 0)
yuuji@49:     ("chapter" . 1)
yuuji@49:     ("section" . 2)
yuuji@49:     ("subsection" . 3)
yuuji@49:     ("subsubsection" . 4)
yuuji@49:     ("paragraph" . 5)
yuuji@49:     ("subparagraph" . 6))
yuuji@49:   "*Alist of LaTeX's sectioning command and its level.
yuuji@49: This value must be written in numerically ascending order and consecutive.
yuuji@49: Needn't define the level of `*' commands such as `section*'.")
yuuji@49: 
yuuji@49: (defvar YaTeX-sectioning-max-level
yuuji@49:   (cdr (nth (1- (length YaTeX-sectioning-level)) YaTeX-sectioning-level))
yuuji@49:   "*The heighest(numerically) level of sectioning command.
yuuji@49: This must be the heighest number in YaTeX-sectioning-level.")
yuuji@23: 
yuuji@23: (defun YaTeX-sectioning-map-hide (map)
yuuji@23:   (let ((ch ?0))
yuuji@23:     (while (<= ch ?9)
yuuji@23:       (define-key map (char-to-string ch) 'YaTeX-sectioning-hide)
yuuji@23:       (setq ch (1+ ch))))
yuuji@23: )
yuuji@23: 
yuuji@49: (defvar YaTeX-sectioning-minibuffer-map nil
yuuji@23:   "Key map used in minibuffer for sectioning.")
yuuji@49: (if YaTeX-sectioning-minibuffer-map nil
yuuji@49:   (setq YaTeX-sectioning-minibuffer-map
yuuji@23: 	(copy-keymap minibuffer-local-completion-map))
yuuji@49:   (define-key YaTeX-sectioning-minibuffer-map "\C-p"
yuuji@23:     'YaTeX-sectioning-up)
yuuji@49:   (define-key YaTeX-sectioning-minibuffer-map "\C-e"
yuuji@23:     'YaTeX-sectioning-up)
yuuji@49:   (define-key YaTeX-sectioning-minibuffer-map "\C-i"
yuuji@23:     'YaTeX-minibuffer-complete)
yuuji@49:   (define-key YaTeX-sectioning-minibuffer-map " "
yuuji@23:     'YaTeX-minibuffer-complete)
yuuji@49:   (define-key YaTeX-sectioning-minibuffer-map "\C-n"
yuuji@23:     'YaTeX-sectioning-down)
yuuji@49:   (define-key YaTeX-sectioning-minibuffer-map "\C-x"
yuuji@23:     'YaTeX-sectioning-down)
yuuji@49:   (define-key YaTeX-sectioning-minibuffer-map "\C-v"
yuuji@23:     'YaTeX-sectioning-scroll-up)
yuuji@49:   (define-key YaTeX-sectioning-minibuffer-map "\C-c"
yuuji@23:     'YaTeX-sectioning-scroll-up)
yuuji@49:   (define-key YaTeX-sectioning-minibuffer-map "\M-v"
yuuji@23:     'YaTeX-sectioning-scroll-down)
yuuji@49:   (define-key YaTeX-sectioning-minibuffer-map "\C-r"
yuuji@23:     'YaTeX-sectioning-scroll-down)
yuuji@49:   (define-key YaTeX-sectioning-minibuffer-map "\C-w"
yuuji@353:     (function (lambda () (interactive) (YaTeX-sectioning-scroll-down 1))))
yuuji@49:   (define-key YaTeX-sectioning-minibuffer-map "\C-z"
yuuji@353:     (function (lambda () (interactive) (YaTeX-sectioning-scroll-up 1))))
yuuji@49:   (define-key YaTeX-sectioning-minibuffer-map "\C-l"
yuuji@23:     'YaTeX-sectioning-recenter)
yuuji@49:   (define-key YaTeX-sectioning-minibuffer-map "?"
yuuji@23:     'YaTeX-sectioning-help)
yuuji@49:   (YaTeX-sectioning-map-hide YaTeX-sectioning-minibuffer-map)
yuuji@23: )
yuuji@23: 
yuuji@23: (defvar YaTeX-sectioning-buffer-map nil
yuuji@23:   "Key map used in YaTeX-sectioning-buffer.")
yuuji@23: (if YaTeX-sectioning-buffer-map nil
yuuji@23:   (setq YaTeX-sectioning-buffer-map (make-sparse-keymap))
yuuji@58:   (define-key YaTeX-sectioning-buffer-map " "	'YaTeX-sectioning-buffer-jump)
yuuji@58:   (define-key YaTeX-sectioning-buffer-map "."	'YaTeX-sectioning-buffer-show)
yuuji@23:   (define-key YaTeX-sectioning-buffer-map (concat YaTeX-prefix "\C-c")
yuuji@23:     'YaTeX-sectioning-buffer-jump)
yuuji@58:   (define-key YaTeX-sectioning-buffer-map "u"	'YaTeX-shift-section-up)
yuuji@58:   (define-key YaTeX-sectioning-buffer-map "d"	'YaTeX-shift-section-down)
yuuji@58:   (define-key YaTeX-sectioning-buffer-map "U"   'YaTeX-shift-section-up-region)
yuuji@58:   (define-key YaTeX-sectioning-buffer-map "D" 'YaTeX-shift-section-down-region)
yuuji@58:   (define-key YaTeX-sectioning-buffer-map "s"	'YaTeX-sync-section-buffer)
yuuji@58:   (define-key YaTeX-sectioning-buffer-map "n"
yuuji@58:     'YaTeX-sectioning-buffer-next-line)
yuuji@58:   (define-key YaTeX-sectioning-buffer-map "p"
yuuji@58:     'YaTeX-sectioning-buffer-prev-line)
yuuji@58:   (define-key YaTeX-sectioning-buffer-map "h"  'describe-mode)
yuuji@58:   (define-key YaTeX-sectioning-buffer-map "o"  'other-window)
yuuji@58:   (define-key YaTeX-sectioning-buffer-map "-"  'shrink-window)
yuuji@58:   (define-key YaTeX-sectioning-buffer-map "+"  'enlarge-window)
yuuji@61:   (define-key YaTeX-sectioning-buffer-map "q"  'delete-window)
yuuji@58:   (define-key YaTeX-sectioning-buffer-map "\C-_" 'YaTeX-shift-section-undo)
yuuji@58:   (and YaTeX-emacs-19 (boundp 'window-system) (eq window-system 'x)
yuuji@58:        (define-key YaTeX-sectioning-buffer-map [?\C-/]
yuuji@58: 	 'YaTeX-shift-section-undo))
yuuji@23:   (YaTeX-sectioning-map-hide YaTeX-sectioning-buffer-map)
yuuji@23: )
yuuji@23: 
yuuji@58: (defun YaTeX-sectioning-mode ()
yuuji@58:   "Mode for browsing document's sectioning structure.
yuuji@58: \\[YaTeX-shift-section-up]	Shift up a sectioning command
yuuji@58: \\[YaTeX-shift-section-down]	Shift down a sectioning command
yuuji@58: \\[YaTeX-shift-section-up-region]	Shift up sectioning commands in region
yuuji@58: \\[YaTeX-shift-section-down-region]	Shift down sectioning commands in region
yuuji@58: \\[YaTeX-shift-section-undo]	Undo changes of shifting
yuuji@58: \\[YaTeX-sync-section-buffer]	Synchronize sectioning buffer with source
yuuji@58: \\[YaTeX-sectioning-buffer-next-line]	Next line
yuuji@58: \\[YaTeX-sectioning-buffer-prev-line]	Previous line
yuuji@58: \\[YaTeX-sectioning-buffer-jump]	Previous line
yuuji@58: \\[YaTeX-sectioning-buffer-show]	Show curresponding source line
yuuji@58: "
yuuji@58:   (interactive)
yuuji@58:   (setq major-mode 'YaTeX-sectioning-mode
yuuji@58: 	mode-name "sectioning")
yuuji@58:   (use-local-map YaTeX-sectioning-buffer-map)
yuuji@58: )
yuuji@58: 
yuuji@23: (defvar YaTeX-sectioning-buffer-parent nil)
yuuji@58: (defun YaTeX-sectioning-buffer-jump-internal (&optional keep)
yuuji@77:   (let ((p (point))		;save-excursion is NG because
yuuji@77: 	ptn ln)			;this function should switch buffer
yuuji@77:     (beginning-of-line)
yuuji@58:     (if (re-search-forward YaTeX-sectioning-regexp)
yuuji@77: 	(progn
yuuji@77: 	  (save-restriction
yuuji@77: 	    (narrow-to-region (point-beginning-of-line) (point-end-of-line))
yuuji@77: 	    (setq ptn (buffer-substring
yuuji@77: 		       (1- (match-beginning 0))
yuuji@77: 		       (progn (skip-chars-forward "^}") (1+ (point))))
yuuji@77: 		  ln (buffer-substring
yuuji@77: 		      (progn (search-forward "line:") (match-end 0))
yuuji@77: 		      (progn (skip-chars-forward "0-9") (point)))))
yuuji@77: 	  (goto-char p)
yuuji@77: 	  (YaTeX-showup-buffer YaTeX-sectioning-buffer-parent nil t)
yuuji@77: 	  (or
yuuji@77: 	   (and ln (string< "" ln)
yuuji@77: 		(progn
yuuji@178: 		  (goto-char (point-min))
yuuji@451: 		  (forward-line (max 0 (- (YaTeX-str2int ln) 2)))
yuuji@77: 		  (and
yuuji@77: 		   (search-forward ptn nil t)
yuuji@77: 		   (goto-char (match-beginning 0)))))
yuuji@77: 	   (progn
yuuji@77: 	     (goto-char (point-max))
yuuji@77: 	     (search-backward ptn)))
yuuji@77: 	  (if keep (goto-buffer-window YaTeX-sectioning-buffer))
yuuji@77: 	  (current-buffer))
yuuji@77:       nil)))
yuuji@77: 
yuuji@58: (defun YaTeX-sectioning-buffer-jump (&optional keep)
yuuji@58:   "Goto corresponding sectioning unit with current line in the next window.
yuuji@58: If optional argument KEEP is non-nil, only shows the line."
yuuji@23:   (interactive)
yuuji@23:   (if (and YaTeX-sectioning-buffer-parent
yuuji@23: 	   (get-buffer YaTeX-sectioning-buffer-parent))
yuuji@58:       (YaTeX-sectioning-buffer-jump-internal keep)
yuuji@58:     (message "No line number expression."))
yuuji@58: )
yuuji@58: 
yuuji@58: (defun YaTeX-sectioning-buffer-show ()
yuuji@58:   "Show corresponding sectioning unit with current line."
yuuji@58:   (interactive)
yuuji@58:   (YaTeX-sectioning-buffer-jump-internal t)
yuuji@23: )
yuuji@23: 
yuuji@23: (defun YaTeX-sectioning-hide-under (n)
yuuji@23:   "Hide sectioning commands under level N."
yuuji@23:   (let ((cw (selected-window)))
yuuji@23:     (YaTeX-showup-buffer YaTeX-sectioning-buffer nil t)
yuuji@49:     (if (>= n YaTeX-sectioning-max-level)
yuuji@23: 	(progn
yuuji@23: 	  (set-selective-display nil)
yuuji@23: 	  (message "Show all."))
yuuji@23:       (set-selective-display (1+ n))
yuuji@49:       (if (rassq n YaTeX-sectioning-level)
yuuji@49: 	  (message "Hide lower than %s" (car (rassq n YaTeX-sectioning-level)))
yuuji@23: 	(message "")))
yuuji@23:     (if (numberp selective-display)
yuuji@23: 	(setq mode-name (format "level %d" (1- selective-display)))
yuuji@23:       (setq mode-name (format "all")))
yuuji@23:     (select-window cw))
yuuji@23: )
yuuji@23: (defun YaTeX-sectioning-hide ()
yuuji@23:   "Call YaTeX-sectioning-hide-under with argument according to pressed key."
yuuji@23:   (interactive)
yuuji@290:   (YaTeX-sectioning-hide-under (- (YaTeX-last-key) ?0)))
yuuji@23: 
yuuji@23: (defun YaTeX-sectioning-help ()
yuuji@23:   "Show help of sectioning."
yuuji@23:   (interactive)
yuuji@23:   (let ((cw (selected-window)) sb (hb (get-buffer-create "*Help*")))
yuuji@23:     (unwind-protect
yuuji@23: 	(progn
yuuji@23: 	  (other-window 1)
yuuji@23: 	  (setq sb (current-buffer))
yuuji@23: 	  (switch-to-buffer hb)
yuuji@532: 	  (setq buffer-read-only nil)		;; Emacs26
yuuji@23: 	  (erase-buffer)
yuuji@23: 	  (insert "===== View sectioning =====
yuuji@23: C-p	Up sectioning level.			0	Show only \\part, 
yuuji@23: C-n	Down sectioning level.			1	 and \\chapter,
yuuji@23: C-v	Scroll up *Sectioning line* buffer.	2	 and \\section,
yuuji@23: M-v	Scroll down *Sectioning line* buffer.	3	 and \\subsection,
yuuji@49: C-z	Scroll up by 1 line.			4	 and \\subsubsection,
yuuji@49: C-w	Scroll down by 1 line.			5	 and \\paragraph.
yuuji@49: SPC	Complete word.				6	Show all.
yuuji@49: TAB	Complete word.
yuuji@49: C-l	Recenter recent line.
yuuji@23: RET	Select.
yuuji@23: ==== End of HELP =====
yuuji@23: ")
yuuji@23: 	  (set-buffer-modified-p nil)
yuuji@23: 	  (goto-char (point-min))
yuuji@23: 	  (momentary-string-display "" (point-min)))
yuuji@23:       (bury-buffer hb)
yuuji@23:       (switch-to-buffer sb)
yuuji@23:       (select-window cw)))
yuuji@23: )
yuuji@23: 
yuuji@23: (defun YaTeX-sectioning-up (n)
yuuji@23:   "Up section level.
yuuji@23: Refers the YaTeX-read-section-in-minibuffer's local variable minibuffer-start."
yuuji@23:   (interactive "p")
yuuji@23:   (if (eq (selected-window) (minibuffer-window))
yuuji@72:       (let*((command (YaTeX-minibuffer-string))
yuuji@53: 	    (aster (and (string< "" command)
yuuji@53: 			(equal (substring command -1) "*")))
yuuji@49: 	    (command (if aster (substring command 0 -1) command))
yuuji@23: 	    (alist YaTeX-sectioning-level)
yuuji@49: 	    (level 0))
yuuji@49: 	(or (assoc command alist) (error "No such sectioning command."))
yuuji@49: 	(while (not (string= (car (nth level alist)) command))
yuuji@49: 	  (setq level (1+ level)))	;I want to use `member'....
yuuji@23: 	(setq level (- level n))
yuuji@23: 	(if (or (< level 0) (>= level (length alist)))
yuuji@23: 	    (ding)
yuuji@72: 	  (YaTeX-minibuffer-erase)
yuuji@49: 	  (insert (concat (car (nth level alist)) (if aster "*" ""))))))
yuuji@23: )
yuuji@23: 
yuuji@23: (defun YaTeX-sectioning-down (n)
yuuji@23:   "Down section level."
yuuji@23:   (interactive "p")
yuuji@23:   (YaTeX-sectioning-up (- n))
yuuji@23: )
yuuji@23: 
yuuji@23: (defun YaTeX-sectioning-scroll-up (n)
yuuji@23:   (interactive "P")
yuuji@23:   (let ((section-buffer YaTeX-sectioning-buffer)
yuuji@23: 	(cw (selected-window)))
yuuji@23:     (YaTeX-showup-buffer section-buffer nil t)
yuuji@23:     (unwind-protect
yuuji@23: 	(scroll-up (or n (- (window-height) 2)))
yuuji@23:       (select-window cw)))
yuuji@23: )
yuuji@23: 
yuuji@23: (defun YaTeX-sectioning-scroll-down (n)
yuuji@23:   (interactive "P")
yuuji@23:   (let ((section-buffer YaTeX-sectioning-buffer)
yuuji@23: 	(cw (selected-window)))
yuuji@23:     (YaTeX-showup-buffer section-buffer nil t)
yuuji@23:     (unwind-protect
yuuji@23: 	(scroll-down (or n (- (window-height) 2)))
yuuji@23:       (select-window cw)))
yuuji@23: )
yuuji@23: 
yuuji@23: (defun YaTeX-sectioning-recenter (arg)
yuuji@23:   "Recenter `<<--' line"
yuuji@23:   (interactive "P")
yuuji@23:   (let ((cw (selected-window)))
yuuji@23:     (unwind-protect
yuuji@23: 	(progn
yuuji@23: 	  (YaTeX-showup-buffer YaTeX-sectioning-buffer nil t)
yuuji@23: 	  (or (search-forward "<<--" nil t)
yuuji@49: 	      (search-backward "<<--" nil))
yuuji@23: 	  (recenter (or arg (/ (window-height) 2))))
yuuji@23:       (select-window cw)))
yuuji@23: )
yuuji@23: 
yuuji@23: (defvar YaTeX-sectioning-minibuffer " *sectioning*"
yuuji@23:   "Miniuffer used for sectioning")
yuuji@49: ;;;###autoload
yuuji@23: (defun YaTeX-read-section-in-minibuffer (prompt table &optional default delim)
yuuji@23:   (interactive)
yuuji@23:   (let ((minibuffer-completion-table table))
yuuji@23:     (read-from-minibuffer
yuuji@49:      prompt default YaTeX-sectioning-minibuffer-map))
yuuji@23: )
yuuji@23: 
yuuji@23: (defun YaTeX-get-sectioning-level ()
yuuji@23:   "Get section-level on the cursor."
yuuji@23:    (cdr-safe (assoc (buffer-substring
yuuji@23: 		     (point)
yuuji@23: 		     (progn (skip-chars-forward "a-z") (point)))
yuuji@23: 		     YaTeX-sectioning-level))
yuuji@23: )
yuuji@23: 
yuuji@23: (defvar YaTeX-sectioning-buffer "*Sectioning lines*")
yuuji@64: (defvar YaTeX-sectioning-indent 1)
yuuji@72: (defun YaTeX-collect-sections ()
yuuji@23:   "Collect all the lines which contains sectioning command."
yuuji@23:   (let ((cw (selected-window)) level indent begp (prevp 1) (prevl 1)
yuuji@23: 	(pattern (concat YaTeX-ec-regexp
yuuji@23: 			 "\\(" YaTeX-sectioning-regexp "\\)\\*?{"))
yuuji@23: 	(cb (current-buffer)))
yuuji@23:     (save-excursion
yuuji@58:       (set-buffer (get-buffer-create YaTeX-sectioning-buffer))
yuuji@58:       (setq buffer-read-only nil)
yuuji@70:       (erase-buffer)
yuuji@58:       (set-buffer cb)
yuuji@23:       (YaTeX-showup-buffer YaTeX-sectioning-buffer) ;show buffer
yuuji@23:       (goto-char (point-min))
yuuji@68:       (let ((standard-output (get-buffer YaTeX-sectioning-buffer)))
yuuji@23: 	(while (re-search-forward pattern nil t)
yuuji@23: 	  (goto-char (1+ (match-beginning 0)))
yuuji@23: 	  (setq level (YaTeX-get-sectioning-level)
yuuji@23: 		begp (match-beginning 0))
yuuji@23: 	  ;;(beginning-of-line)
yuuji@23: 	  ;;(skip-chars-forward " \t")
yuuji@64: 	  (setq indent (format "%%%ds" (* level YaTeX-sectioning-indent)))
yuuji@23: 	  (princ (format indent ""))
yuuji@23: 	  (if (YaTeX-on-comment-p) (princ "%"))
yuuji@23: 	  (princ (buffer-substring begp (progn (forward-list 1) (point))))
yuuji@23: 	  (setq prevl (+ prevl (count-lines prevp (point)) -1)
yuuji@23: 		prevp (point))
yuuji@23: 	  (princ (format " (line:%d)" prevl))
yuuji@23: 	  (princ "\n")))
yuuji@23:       (set-buffer YaTeX-sectioning-buffer)
yuuji@23:       (make-local-variable 'YaTeX-sectioning-buffer-parent)
yuuji@58:       (YaTeX-sectioning-mode)
yuuji@23:       (use-local-map YaTeX-sectioning-buffer-map)
yuuji@23:       (setq YaTeX-sectioning-buffer-parent cb)
yuuji@23:       (if (numberp selective-display)
yuuji@23: 	  (setq mode-name (format "level %d" (1- selective-display))))
yuuji@23:       YaTeX-sectioning-buffer))
yuuji@23: )
yuuji@23: 
yuuji@58: (defvar YaTeX-pending-undo nil)
yuuji@23: (defun YaTeX-section-overview ()
yuuji@23:   "Show section overview.  Return the nearest sectioning command."
yuuji@23:   (interactive)
yuuji@23:   (let ((cw (selected-window)) (ln (count-lines (point-min) (point)))
yuuji@23: 	(pattern "(line:\\([0-9]+\\))")
yuuji@58: 	secbuf (command ""))
yuuji@23:     (save-excursion
yuuji@72:       (setq secbuf (YaTeX-collect-sections))
yuuji@23:       (YaTeX-showup-buffer secbuf nil t)
yuuji@58:       (set-buffer secbuf)
yuuji@23:       (goto-char (point-max))
yuuji@23:       (while (re-search-backward pattern nil t)
yuuji@451: 	(if (< ln (YaTeX-str2int (YaTeX-match-string 1))) nil
yuuji@23: 	  (beginning-of-line)
yuuji@23: 	  (search-forward YaTeX-ec)
yuuji@23: 	  (looking-at YaTeX-TeX-token-regexp)
yuuji@23: 	  (setq command (YaTeX-match-string 0))
yuuji@23: 	  (end-of-line)
yuuji@23: 	  (insert "  <<--")
yuuji@23: 	  (setq pattern (concat "HackyRegexp" "ForFailure"))))
yuuji@23:       (set-buffer-modified-p nil)
yuuji@58:       (setq buffer-read-only t buffer-undo-list nil)
yuuji@58:       (make-local-variable 'YaTeX-pending-undo)
yuuji@23:       (forward-line 1)
yuuji@23:       (if (eobp) (recenter -1) (recenter -3))
yuuji@23:       (select-window cw)
yuuji@23:       command))
yuuji@23: )
yuuji@23: 
yuuji@49: ;;;###autoload
yuuji@23: (defun YaTeX-make-section-with-overview ()
yuuji@23:   "Input sectining command with previous overview."
yuuji@23:   (interactive)
yuuji@23:   (insert
yuuji@23:    YaTeX-ec
yuuji@23:    (YaTeX-read-section-in-minibuffer
yuuji@23:     "Sectioning(Up=C-p, Down=C-n, Help=?): "
yuuji@23:     YaTeX-sectioning-level (YaTeX-section-overview))
yuuji@23:    "{}")
yuuji@23:   (forward-char -1)
yuuji@23: )
yuuji@23: 
yuuji@58: (defun YaTeX-shifted-section (sc n)
yuuji@58:   "Get SC's N-shifted sectioning command."
yuuji@58:   (let (lv)
yuuji@58:     (setq lv (- (cdr (assoc sc YaTeX-sectioning-level)) n)
yuuji@58: 	  lv (max (min YaTeX-sectioning-max-level lv) 0))
yuuji@58:     (car (nth lv YaTeX-sectioning-level)))
yuuji@58: )
yuuji@58: 
yuuji@58: (defun YaTeX-shift-section-up (n)
yuuji@58:   "Shift sectioning command down by level N."
yuuji@58:   (interactive "p")
yuuji@58:   (let ((cb (current-buffer)) sc nsc lv)
yuuji@58:     (if (and YaTeX-sectioning-buffer-parent
yuuji@58: 	     (get-buffer YaTeX-sectioning-buffer-parent)
yuuji@58: 	     (save-excursion
yuuji@68: 	       (beginning-of-line)
yuuji@68: 	       (skip-chars-forward "^\\\\" (point-end-of-line))
yuuji@58: 	       (YaTeX-on-section-command-p YaTeX-sectioning-regexp)))
yuuji@58: 	(save-excursion
yuuji@58: 	  (or (buffer-name (get-buffer YaTeX-sectioning-buffer-parent))
yuuji@58: 	      (error "This buffer is obsolete."))
yuuji@58: 	  (setq nsc (YaTeX-shifted-section (YaTeX-match-string 1) n))
yuuji@58: 	  (YaTeX-sectioning-buffer-jump-internal)
yuuji@58: 	  (undo-boundary)
yuuji@58: 	  (goto-char (match-beginning 0))
yuuji@58: 	  (skip-chars-forward "\\\\")
yuuji@58: 	  (delete-region
yuuji@58: 	   (point) (progn (skip-chars-forward "^*{") (point)))
yuuji@58: 	  (insert nsc)
yuuji@58: 	  (undo-boundary)
yuuji@58: 	  ;; Return to *Sectioning Lines* buffer
yuuji@58: 	  (select-window (get-buffer-window cb))
yuuji@58: 	  (beginning-of-line)
yuuji@58: 	  (let (buffer-read-only)
yuuji@58: 	    (delete-region
yuuji@58: 	     (point) (progn (skip-chars-forward " \t") (point)))
yuuji@64: 	    (indent-to-column (* (cdr (assoc nsc YaTeX-sectioning-level))
yuuji@64: 				 YaTeX-sectioning-indent))
yuuji@58: 	    (skip-chars-forward "^\\\\")
yuuji@58: 	    (delete-region
yuuji@58: 	     (1+ (point)) (progn (skip-chars-forward "^*{") (point)))
yuuji@58: 	    (insert nsc)
yuuji@58: 	    (undo-boundary))
yuuji@58: 	  (set-buffer-modified-p nil)
yuuji@58: 	  (setq YaTeX-pending-undo pending-undo-list)
yuuji@58: 	  )))
yuuji@58: )
yuuji@58: (defun YaTeX-shift-section-down (n)
yuuji@58:   "Shift sectioning command down by level N."
yuuji@58:   (interactive "p")
yuuji@58:   (YaTeX-shift-section-up (- n))
yuuji@58: )
yuuji@58: (defun YaTeX-shift-section-undo (arg)
yuuji@58:   "Undo YaTeX-shift-section-up/down."
yuuji@58:   (interactive "p")
yuuji@58:   (and YaTeX-sectioning-buffer-parent
yuuji@58:        (get-buffer YaTeX-sectioning-buffer-parent)
yuuji@58:        (equal (current-buffer) (get-buffer YaTeX-sectioning-buffer))
yuuji@58:        (let ((cb (current-buffer))
yuuji@58: 	     (lc (if (eq last-command 'YaTeX-shift-section-undo) 'undo t)))
yuuji@58: 	 (let ((pending-undo-list YaTeX-pending-undo)
yuuji@58: 	       buffer-read-only (last-command lc))
yuuji@58: 	   (undo arg)
yuuji@58: 	   (setq YaTeX-pending-undo pending-undo-list))
yuuji@58: 	 (YaTeX-showup-buffer YaTeX-sectioning-buffer-parent)
yuuji@58: 	 (goto-buffer-window YaTeX-sectioning-buffer-parent)
yuuji@58: 	 (undo-boundary)
yuuji@58: 	 (let ((last-command lc)
yuuji@58: 	       (pending-undo-list
yuuji@58: 		(if (eq lc 'undo) YaTeX-pending-undo pending-undo-list)))
yuuji@58: 	   (undo arg)
yuuji@58: 	   (setq YaTeX-pending-undo pending-undo-list))
yuuji@58: 	 (goto-buffer-window cb)
yuuji@58: 	 (setq this-command 'YaTeX-shift-section-undo)))
yuuji@58: )
yuuji@58: (defun YaTeX-sync-section-buffer ()
yuuji@58:   "Synchronize *Sectioning Lines* buffer with parent buffer."
yuuji@58:   (interactive)
yuuji@58:   (if (and YaTeX-sectioning-buffer-parent
yuuji@58: 	   (get-buffer YaTeX-sectioning-buffer-parent))
yuuji@58:       (let ((cb (current-buffer)) (p (point)))
yuuji@58: 	(set-buffer (get-buffer YaTeX-sectioning-buffer-parent))
yuuji@58: 	(YaTeX-section-overview)
yuuji@58: 	(switch-to-buffer cb)
yuuji@58: 	(goto-char p)))
yuuji@58: )
yuuji@58: (defun YaTeX-shift-section-up-region (beg end n)
yuuji@58:   "Shift sectioning commands in region down by level N."
yuuji@58:   (interactive "r\np")
yuuji@58:   (or YaTeX-sectioning-buffer-parent
yuuji@58:       (get-buffer YaTeX-sectioning-buffer-parent)
yuuji@58:       (error "Can't find corresponding LaTeX buffer"))
yuuji@58:   (save-excursion
yuuji@58:     (goto-char beg)
yuuji@58:     (let ((cb (current-buffer)) nsc from to repllist (e (make-marker)))
yuuji@58:       (set-marker e end)
yuuji@58:       (while (progn (skip-chars-forward "^\\\\") (< (point) e))
yuuji@58: 	(YaTeX-on-section-command-p YaTeX-sectioning-regexp)
yuuji@58: 	(setq from (YaTeX-match-string 0)
yuuji@58: 	      nsc (YaTeX-shifted-section (YaTeX-match-string 1) n))
yuuji@58: 	(goto-char (match-beginning 0))
yuuji@58: 	(let (buffer-read-only)
yuuji@68: 	  ;(delete-region (point) (progn (beginning-of-line) (point)))
yuuji@68: 	  (delete-region (progn (beginning-of-line) (point))
yuuji@68: 			 (progn (skip-chars-forward " \t") (point)))
yuuji@58: 	  (indent-to-column (cdr (assoc nsc YaTeX-sectioning-level)))
yuuji@58: 	  (delete-region
yuuji@68: 	   (progn (skip-chars-forward "%\\\\") (point))
yuuji@68: 	   (progn (skip-chars-forward "^*{") (point)))
yuuji@58: 	  (insert nsc))
yuuji@58: 	(YaTeX-on-section-command-p YaTeX-sectioning-regexp)
yuuji@58: 	(setq to (YaTeX-match-string 0)
yuuji@58: 	      repllist (cons (cons from to) repllist))
yuuji@58: 	(forward-line 1))
yuuji@58:       (YaTeX-showup-buffer YaTeX-sectioning-buffer-parent)
yuuji@58:       (goto-buffer-window YaTeX-sectioning-buffer-parent)
yuuji@58:       (save-excursion
yuuji@58: 	(goto-char (point-max))
yuuji@58: 	(undo-boundary)
yuuji@58: 	(while repllist
yuuji@58: 	  (if (search-backward (car (car repllist)) nil t)
yuuji@58: 	      (progn
yuuji@58: 		(goto-char (match-beginning 0))	;confirm
yuuji@58: 		(delete-region (point) (match-end 0))
yuuji@58: 		(insert (cdr (car repllist)))
yuuji@58: 		(goto-char (match-beginning 0))))
yuuji@58: 	  (setq repllist (cdr repllist))))
yuuji@58:       (goto-buffer-window cb)))
yuuji@58: )
yuuji@58: (defun YaTeX-shift-section-down-region (beg end n)
yuuji@58:   "Shift sectioning commands in region down by level N."
yuuji@58:   (interactive "r\np")
yuuji@58:   (YaTeX-shift-section-up-region beg end (- n))
yuuji@58: )
yuuji@58: (defun YaTeX-sectioning-buffer-next-line (n)
yuuji@58:   "Move to next line in *Sectioning Lines* buffer."
yuuji@58:   (interactive "p")
yuuji@58:   (forward-line n)
yuuji@58:   (skip-chars-forward " \t%")
yuuji@58: )
yuuji@58: (defun YaTeX-sectioning-buffer-prev-line (n)
yuuji@58:   "Move to previous line in *Sectioning Lines* buffer."
yuuji@58:   (interactive "p")
yuuji@58:   (YaTeX-sectioning-buffer-next-line (- n))
yuuji@58: )
yuuji@23: (provide 'yatexsec)