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;;; algpseudocode.el --- AUCTeX style for the (LaTeX) algpseudocode package -*- lexical-binding: t; -*-
;; Copyright (C) 2020--2022 Free Software Foundation, Inc.
;; Author: Uwe Brauer <oub@mat.ucm.es>
;; Created: 2020-01-26
;; 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 the algpseudocode package.
;;; Code:
(require 'tex)
(require 'latex)
;; Silence the compiler:
(declare-function font-latex-add-keywords
"font-latex"
(keywords class))
(defvar LaTeX-algpseudocode-package-options
'("compatible" "nocompatible" "end" "noend")
"Package options for the algpseudocode package.")
(TeX-add-style-hook
"algpseudocode"
(lambda ()
(TeX-add-symbols
;; 2.3 Simple lines
'("State" (TeX-arg-literal " "))
'("Statex" 0)
;; 2.4 Placing comments in sources
'("Comment" 1)
;; 2.5 Labels and references
'("algref" (TeX-arg-ref "Algorithm") (TeX-arg-ref "Line"))
;; 2.6 Breaking up long algorithms
'("algstore" 1)
'("algstore*" 1)
'("algrestore" 1)
'("algrestore*" 1)
;; 3.1.1 The for block
'("For" 1)
'("ForAll" 1)
'("EndFor" 0)
;; 3.1.2 The while block
'("While" 1)
'("EndWhile" 0)
;; 3.1.3 The repeat block
'("Repeat" 0)
'("Until" 1)
;; 3.1.4 The if block
'("If" 1)
'("ElsIf" 1)
'("Else" 0)
'("EndIf" 0)
;; 3.1.5 The procedure block
'("Procedure" 2)
'("EndProcedure" 0)
;; 3.1.6 The function block
'("Function" 2)
'("EndFunction" 0)
;; 3.1.7 The loop block
'("Loop" 0)
'("EndLoop" 0)
;; 3.1.8 Other commands in this layout
'("Require" (TeX-arg-literal " "))
'("Ensure" (TeX-arg-literal " "))
'("Call" 2))
(LaTeX-add-environments
'("algorithmic" [ "Number" ]))
;; Indentation: Add the keywords above to the respective variables
;; and run `LaTeX-indent-commands-regexp-make'.
(let ((beg '("For" "ForAll"
"While"
"Repeat"
"If"
"Procedure"
"Function"
"Loop"))
(mid '("ElsIf" "Else"))
(end '("EndFor"
"EndWhile"
"Until"
"EndIf"
"EndProcedure"
"EndFunction"
"EndLoop")))
(dolist (elt beg)
(add-to-list 'LaTeX-indent-begin-list elt t))
(dolist (elt mid)
(add-to-list 'LaTeX-indent-mid-list elt t))
(dolist (elt end)
(add-to-list 'LaTeX-indent-end-list elt t))
(LaTeX-indent-commands-regexp-make))
;; Add the 'algorithmic' environment to a local version of
;; `LaTeX-indent-environment-list'. This effectively kills filling
;; but indenting works as expected. Hence, 'M-q' gives a better
;; experience.
(add-to-list (make-local-variable 'LaTeX-indent-environment-list)
'("algorithmic")
t)
;; Fontification
(when (and (featurep 'font-latex)
(eq TeX-install-font-lock 'font-latex-setup))
(font-latex-add-keywords '(("algref" "{{"))
'reference)))
TeX-dialect)
;;; algpseudocode.el ends here
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