;;; subfiles.el --- AUCTeX style for the subfiles package.
;; Copyright (C) 2016 Free Software Foundation, Inc.
;; Author: Uwe Brauer <oub@mat.ucm.es>
;; Created: 07 Nov 2016
;; 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.
;; Acknowledgements
;; Mosè Giordano <mose@gnu.org>
;; Arash Esbati <arash@gnu.org>
;;; Commentary:
;; This file adds support for the subfiles package.
;;; Code:
(defvar LaTeX-subfiles-package-options nil
"Package options for the subfiles package.")
(defun LaTeX-subfiles-class-options ()
"Return name of the main file relative to current subfile."
(file-relative-name
(read-file-name
"Main file: " nil nil nil nil
(lambda (texfiles)
(string-match "\\.tex$" texfiles)))
(TeX-master-directory)))
(TeX-add-style-hook
"subfiles"
(lambda ()
;; The following code will run `TeX-run-style-hooks' on the subfile
;; master file. Thanks to Mosè Giordano <mose@gnu.org> for
;; presenting a better solution using `assoc'.
(let ((master-file (cadr (assoc "subfiles" LaTeX-provided-class-options))))
(when (stringp master-file)
(TeX-run-style-hooks
(file-name-sans-extension master-file))))
(TeX-add-symbols
'("subfile" TeX-arg-file))
;; Ensure that \subfile stays in one line
(LaTeX-paragraph-commands-add-locally "subfile")
;; Tell AUCTeX that \subfile loads a file. regexp is the same as
;; for \input or \include. This will run `TeX-run-style-hooks' on
;; subfile(s) when master file is loaded.
(TeX-auto-add-regexp
`(,(concat
"\\\\subfile"
"{\\(\\.*[^#}%\\\\\\.\n\r]+\\)\\(\\.[^#}%\\\\\\.\n\r]+\\)?}")
1 TeX-auto-file))
;; Tell RefTeX the same thing.
(when (and (boundp 'reftex-include-file-commands)
(not (member "subfile" reftex-include-file-commands)))
(add-to-list 'reftex-include-file-commands "subfile" t)
(reftex-compile-variables))
;; The following code will fontify `\subfile{}' like \input.
(when (and (featurep 'font-latex)
(eq TeX-install-font-lock 'font-latex-setup))
(font-latex-add-keywords '(("subfile" "{"))
'reference)))
LaTeX-dialect)
;;; subfiles.el ends here