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+;;; portuguese.el --- Setup AUCTeX for editing Portuguese text.  -*- lexical-binding: t; -*-
+
+;; Copyright (C) 2021 Free Software Foundation, Inc.
+
+;; Author: Arash Esbati <arash@gnu.org>
+;; Maintainer: auctex-devel@gnu.org
+;; Created: 2021-05-02
+;; 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:
+
+;; Cater for some specialities of Portuguese language provided by
+;; babel package, e.g. special quote and hyphen strings or `"' which
+;; is an active character.
+
+;; Thanks to Gustavo Barros <gusbrs.2016@gmail.com> for requesting
+;; this feature and reviewing the code.
+
+;;; Code:
+
+(require 'tex)
+(require 'latex)
+
+;; Silence the compiler:
+(declare-function font-latex-add-quotes
+                  "font-latex"
+                  (quotes))
+
+(declare-function font-latex-add-to-syntax-alist
+                  "font-latex"
+                  (list))
+
+(defvar LaTeX-portuguese-mode-syntax-table
+  (copy-syntax-table LaTeX-mode-syntax-table)
+  "Syntax table used in LaTeX mode when using `portuguese' language.")
+
+(modify-syntax-entry ?\" "w" LaTeX-portuguese-mode-syntax-table)
+
+(TeX-add-style-hook
+ "portuguese"
+ (lambda ()
+   (set-syntax-table LaTeX-portuguese-mode-syntax-table)
+   (unless (eq (car TeX-quote-language) 'override)
+     (setq TeX-quote-language
+           `("portuguese" "\"<" "\">" ,TeX-quote-after-quote)))
+   (setq LaTeX-babel-hyphen-language "portuguese")
+   (TeX-add-symbols
+    "ord"
+    "ro"
+    "orda"
+    "ra")
+   ;; Fontification
+   (when (and (eq TeX-install-font-lock 'font-latex-setup)
+              (featurep 'font-latex))
+     (font-latex-add-quotes '("\"<" "\">" french))
+     ;; Prevent "| from leading to color bleed.
+     (font-latex-add-to-syntax-alist (list (cons ?\" "\\"))))
+   (run-hooks 'TeX-language-pt-hook))
+ TeX-dialect)
+
+;;; portuguese.el ends here