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elpa/auctex-12.1.0/style/pdfsync.el

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+;;; pdfsync.el --- AUCTeX style for `pdfsync.sty'
+
+;; Copyright (C) 2005, 2008, 2014 Free Software Foundation, Inc.
+
+;; Author: Ralf Angeli <angeli@iwi.uni-sb.de>
+;; Maintainer: auctex-devel@gnu.org
+;; Created: 2005-12-28
+;; Keywords: tex
+
+;; This file is part of AUCTeX.
+
+;; AUCTeX 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 3, or (at your option)
+;; any later version.
+
+;; AUCTeX 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 AUCTeX; see the file COPYING.  If not, write to the Free
+;; Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+;; 02110-1301, USA.
+
+;;; Commentary:
+
+;; This file adds support for `pdfsync.sty'.
+
+;;; Code:
+
+(defun LaTeX-pdfsync-output-page ()
+  "Return page number in output file corresponding to buffer position."
+  (let* ((line (TeX-line-number-at-pos))
+	 (master (TeX-active-master))
+	 (file (file-name-sans-extension
+		(file-relative-name (buffer-file-name)
+				    (file-name-directory master))))
+	 (pdfsync-file (concat master ".pdfsync"))
+	 (buf-live-p (get-file-buffer pdfsync-file))
+	 (sync-record "0")
+	 (sync-page "1")
+	 last-match)
+    (when (file-exists-p pdfsync-file)
+      (with-current-buffer (find-file-noselect pdfsync-file)
+	(save-restriction
+	  (goto-char (point-min))
+	  ;; Narrow region to file in question.
+	  (when (not (string= file master))
+	    (re-search-forward (concat "^(" file "\\(.tex\\)?$") nil t)
+	    (let ((beg (match-beginning 0)))
+	      (goto-char beg)
+	      (narrow-to-region (line-beginning-position 2)
+				(progn (forward-sexp) (point))))
+	    (goto-char (point-min)))
+	  ;; Look for the record number.
+	  (catch 'break
+	    (while (re-search-forward "^(\\|^l \\([0-9]+\\) \\([0-9]+\\)" nil t)
+	      (cond ((string= (match-string 0) "(")
+		     (goto-char (match-beginning 0))
+		     (forward-sexp))
+		    ((> (string-to-number (match-string 2)) line)
+		     (throw 'break nil))
+		    (t
+		     (setq sync-record (match-string 1)
+			   last-match (match-beginning 0))))))
+	  ;; Look for the page number.
+	  (goto-char (or last-match (point-min)))
+	  ;; There might not be any p or s lines for the current file,
+	  ;; so make it possible to search further.
+	  (widen)
+	  (catch 'break
+	    (while (re-search-forward "^p \\([0-9]+\\)" nil t)
+	      (when (>= (string-to-number (match-string 1))
+			(string-to-number sync-record))
+		(re-search-backward "^s \\([0-9]+\\)" nil t)
+		(setq sync-page (match-string 1))
+		(throw 'break nil)))))
+	;; Kill the buffer if it was loaded by us.
+	(unless buf-live-p (kill-buffer (current-buffer)))))
+    sync-page))
+
+(TeX-add-style-hook
+ "pdfsync"
+ (lambda ()
+   (setq TeX-source-correlate-output-page-function 'LaTeX-pdfsync-output-page))
+ LaTeX-dialect)
+
+;;; pdfsync.el ends here