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;;; algorithm.el --- AUCTeX style for the (LaTeX) algorithm package -*- lexical-binding: t; -*-
;; Copyright (C) 2020 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 algorithm package.
;;; Code:
(require 'tex)
(require 'latex)
(defvar LaTeX-algorithm-package-options
'(;; Appearance options:
"plain" "ruled" "boxed"
;; Numbering convention:
"part" "chapter" "section" "subsection" "subsubsection" "nothing")
"Package options for the algorithm package.")
(defun LaTeX-env-algorithm (environment)
"Insert a algorithm-like ENVIRONMENT with caption and label."
(let* ((pos (completing-read (TeX-argument-prompt t nil "Position")
'(("H"))))
(caption (TeX-read-string "Caption: "))
(short-caption (when (>= (length caption) LaTeX-short-caption-prompt-length)
(TeX-read-string "(Optional) Short caption: "))))
(LaTeX-insert-environment environment
(concat
(unless (zerop (length pos))
(concat LaTeX-optop pos LaTeX-optcl))))
;; top caption -- do nothing if user skips caption
(unless (zerop (length caption))
;; insert `\caption[short-caption]{caption':
(insert TeX-esc "caption")
(when (and short-caption (not (string= short-caption "")))
(insert LaTeX-optop short-caption LaTeX-optcl))
(insert TeX-grop caption)
;; Add } to close `\caption{'
(insert TeX-grcl)
;; fill the caption
(when auto-fill-function (LaTeX-fill-paragraph))
;; Insert a new line and indent
(LaTeX-newline)
(indent-according-to-mode)
;; Finally add a \label:
(when (LaTeX-label environment 'environment)
(LaTeX-newline)
(indent-according-to-mode)))))
(TeX-add-style-hook
"algorithm"
(lambda ()
(LaTeX-add-environments
'("algorithm" LaTeX-env-algorithm))
(TeX-add-symbols
'("listofalgorithms" 0)))
TeX-dialect)
;;; algorithm.el ends here
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