[elpa] externals/auctex bc5f7bc 60/71: Add new style/cancel.el

[Tassilo Horn]

branch: externals/auctex
commit bc5f7bcdaae5921fd2f1a4e538f3f78d10299a1c
Author: Arash Esbati <arash@gnu.org>
Commit: Arash Esbati <arash@gnu.org>

    Add new style/cancel.el
    
    * Makefile.in (STYLESRC): Add new style.
    
    * style/cancel.el: New file.
---
 Makefile.in     |  2 +-
 style/cancel.el | 63 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 64 insertions(+), 1 deletion(-)

diff --git a/Makefile.in b/Makefile.in
index 7316c51..5eba8ff 100644
--- a/Makefile.in
+++ b/Makefile.in
@@ -175,7 +175,7 @@ STYLESRC = style/prosper.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/xr.el
+          style/xr.el        style/cancel.el
 
 STYLEELC = $(STYLESRC:.el=.elc)
 
diff --git a/style/cancel.el b/style/cancel.el
new file mode 100644
index 0000000..765fe68
--- /dev/null
+++ b/style/cancel.el
@@ -0,0 +1,63 @@
+;;; cancel.el --- AUCTeX style for `cancel.sty'  -*- lexical-binding: t; -*-
+
+;; Copyright (C) 2021 Free Software Foundation, Inc.
+
+;; Author: Arash Esbati <arash@gnu.org>
+;; Maintainer: auctex-devel@gnu.org
+;; Created: 2021-11-24
+;; 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 `cancel.sty' v2.2 form 2013-04-12.
+
+;;; Code:
+
+(require 'tex)
+
+;; Silence the compiler:
+(declare-function font-latex-add-keywords
+                  "font-latex"
+                  (keywords class))
+
+(TeX-add-style-hook
+ "cancel"
+ (lambda ()
+   (TeX-add-symbols
+    '("cancel"   "Expression")
+    '("bcancel"  "Expression")
+    '("xcancel"  "Expression")
+    '("cancelto" "Value" "Expression")
+    "CancelColor")
+
+   ;; Fontification
+   (when (and (featurep 'font-latex)
+              (eq TeX-install-font-lock 'font-latex-setup))
+     (font-latex-add-keywords '(("cancel"   "|{\\")
+                                ("bcancel"  "|{\\")
+                                ("xcancel"  "|{\\"))
+                              'textual)))
+ TeX-dialect)
+
+(defvar LaTeX-cancel-package-options
+  '("thicklines" "samesize" "smaller" "Smaller")
+  "Package options for the cancel package.")
+
+;;; cancel.el ends here