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;;; ltcaption.el --- AUCTeX style for `ltcaption.sty' version v1.4c -*- lexical-binding: t; -*-
;; Copyright (C) 2022 Free Software Foundation, Inc.
;; Author: Arash Esbati <arash@gnu.org>
;; Maintainer: auctex-devel@gnu.org
;; Created: 2022-05-04
;; 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 `ltcaption.sty' version v1.4c from
;; 2021/01/08. `ltcaption.sty' is part of TeXLive.
;; This style tracks ltcaption.sty which doesn't load longtable.sty
;; and emits an error when longtable package is missing. The same
;; happens here when longtable.el isn't loaded yet where
;; `LaTeX-item-longtable' is undefined. The remedy is to load
;; longtable before ltcaption. The caption package loads ltcaption
;; automatically if longtable is loaded.
;;; Code:
(require 'tex)
(require 'latex)
;; Silence the compiler:
(declare-function font-latex-add-keywords
"font-latex" (keywords class))
(declare-function LaTeX-item-longtable
"longtable" (&optional suppress))
(defun LaTeX-env-longtable* (environment)
"Insert a longtable* ENVIRONMENT with a starred caption."
(let ((pos (and LaTeX-default-position ; `LaTeX-default-position'
; can be nil, i.e. no prompt
(completing-read (TeX-argument-prompt t nil "Position")
'("l" "r" "c")
nil nil LaTeX-default-position)))
(fmt (TeX-read-string
(if (string= LaTeX-default-format "")
"Format: "
(format "Format (default %s): " LaTeX-default-format))
nil nil
(if (string= LaTeX-default-format "")
nil
LaTeX-default-format)))
(caption (TeX-read-string
(TeX-argument-prompt nil nil "Starred caption"))))
(setq LaTeX-default-position pos
LaTeX-default-format fmt)
(LaTeX-insert-environment environment
(concat
(unless (zerop (length pos))
(concat LaTeX-optop pos LaTeX-optcl))
(concat TeX-grop fmt TeX-grcl)))
;; top caption -- do nothing if user skips caption
(unless (zerop (length caption))
;; insert '\caption*{text} \\':
(insert TeX-esc "caption*" TeX-grop caption TeX-grcl " \\\\")
;; fill the caption
(when auto-fill-function (LaTeX-fill-paragraph))
;; Insert a new line and indent
(LaTeX-newline)
(indent-according-to-mode))
;; Insert suitable number of &'s, suppress line break
(LaTeX-item-longtable t)))
(TeX-add-style-hook
"ltcaption"
(lambda ()
(TeX-add-symbols
"LTcapmarginsfalse"
"LTcaptype")
;; These parameters are set with \setlength
(LaTeX-add-lengths
"LTcapskip" "LTcapleft" "LTcapright")
(LaTeX-add-environments
'("longtable*" LaTeX-env-longtable*))
;; Use the enhanced table formatting. Append to
;; `LaTeX-indent-environment-list' in order not to override custom
;; settings.
(add-to-list (make-local-variable 'LaTeX-indent-environment-list)
'("longtable*" LaTeX-indent-tabular) t)
;; Append 'longtable*' to `LaTeX-item-list' with `LaTeX-item-longtable':
(add-to-list 'LaTeX-item-list '("longtable*" . LaTeX-item-longtable) t)
;; Fontification
(when (and (featurep 'font-latex)
(eq TeX-install-font-lock 'font-latex-setup))
(font-latex-add-keywords '(("LTcapmarginsfalse" ""))
'function)))
TeX-dialect)
(defvar LaTeX-ltcaption-package-options nil
"Package options for the ltcaption package.")
;;; ltcaption.el ends here
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