[elpa] externals/auctex dfd3369 59/71: Add new style/xr.el

[Tassilo Horn]

branch: externals/auctex
commit dfd3369d33af40927ad64c423864a01b1e35ada8
Author: Arash Esbati <arash@gnu.org>
Commit: Arash Esbati <arash@gnu.org>

    Add new style/xr.el
    
    * Makefile.in (STYLESRC): Add new style.
    
    * style/xr.el: New file.
---
 Makefile.in |  3 ++-
 style/xr.el | 68 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 70 insertions(+), 1 deletion(-)

diff --git a/Makefile.in b/Makefile.in
index 2dc244e..7316c51 100644
--- a/Makefile.in
+++ b/Makefile.in
@@ -174,7 +174,8 @@ STYLESRC = style/prosper.el \
           style/appendix.el  style/scholax.el   style/extramarks.el \
           style/truncate.el  style/changes.el   style/footnotehyper.el \
           style/brazil.el    style/brazilian.el style/portuguese.el \
-          style/portuges.el  style/backref.el   style/xr-hyper.el
+          style/portuges.el  style/backref.el   style/xr-hyper.el \
+          style/xr.el
 
 STYLEELC = $(STYLESRC:.el=.elc)
 
diff --git a/style/xr.el b/style/xr.el
new file mode 100644
index 0000000..c388ead
--- /dev/null
+++ b/style/xr.el
@@ -0,0 +1,68 @@
+;;; xr.el --- AUCTeX style for `xr.sty'  -*- lexical-binding: t; -*-
+
+;; Copyright (C) 2021 Free Software Foundation, Inc.
+
+;; Author: Arash Esbati <arash@gnu.org>
+;; Maintainer: auctex-devel@gnu.org
+;; Created: 2021-10-05
+;; 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 Street, Fifth Floor, Boston,
+;; MA 02110-1301 USA.
+
+;;; Commentary:
+
+;; This file adds support for `xr.sty' v5.06 form 2020-05-10.  RefTeX
+;; has good support for referencing external \label's, so it should be
+;; used.
+
+;;; Code:
+
+(require 'tex)
+(require 'latex)
+
+;; Silence the compiler:
+(declare-function font-latex-add-keywords
+                  "font-latex"
+                  (keywords class))
+
+(TeX-add-style-hook
+ "xr"
+ (lambda ()
+   (TeX-add-symbols
+    '("externaldocument"
+      ["Prefix"]
+      ;; Act like \include and not like \input:
+      (TeX-arg-input-file "File" t))
+
+    '("externalcitedocument"
+      ["Prefix"]
+      ;; Act like \include and not like \input:
+      (TeX-arg-input-file "File" t)))
+
+   ;; Fontification
+   (when (and (featurep 'font-latex)
+              (eq TeX-install-font-lock 'font-latex-setup))
+     (font-latex-add-keywords '(("externaldocument"     "[{")
+                                ("externalcitedocument" "[{"))
+                              'reference)))
+ TeX-dialect)
+
+(defvar LaTeX-xr-package-options nil
+  "Package options for the xr package.")
+
+;;; xr.el ends here