emacs/code/elpa/auctex-13.2.1/style/longtable.el

156 lines
5.7 KiB
EmacsLisp

;;; longtable.el --- AUCTeX style for `longtable.sty'. -*- lexical-binding: t; -*-
;; Copyright (C) 2013--2022 Free Software Foundation, Inc.
;; Maintainer: auctex-devel@gnu.org
;; Author: Mosè Giordano <mose@gnu.org>
;; 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 `longtable.sty'.
;;; Code:
(require 'tex)
(require 'latex)
;; Silence the compiler:
(declare-function font-latex-add-keywords
"font-latex"
(keywords class))
(defvar LaTeX-longtable-skipping-regexp
(regexp-opt '("[l]" "[r]" "[c]" ""))
"Regexp matching between \\begin{longtable} and column specification.
For longtable environments only.")
(defun LaTeX-item-longtable (&optional suppress)
"Insert line break macro on the last line and suitable number of &'s.
For longtable environments. If SUPPRESS is non-nil, do not
insert line break macro."
(unless suppress
(save-excursion
(end-of-line 0)
(just-one-space)
(TeX-insert-macro "\\")))
(LaTeX-insert-ampersands
LaTeX-longtable-skipping-regexp #'LaTeX-array-count-columns))
(defun LaTeX-env-longtable (environment)
"Insert a longtable-like ENVIRONMENT with caption and label."
(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 "Caption: "))
(short-caption (when (>= (length caption) LaTeX-short-caption-prompt-length)
(TeX-read-string "(Optional) Short 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[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)
;; ask for a label and insert it
(LaTeX-label environment 'environment)
;; the longtable `\caption' is equivalent to a `\multicolumn',
;; so it needs a `\\' at the end of the line. Prior to that,
;; add } to close `\caption{' and a space:
(insert TeX-grcl)
(just-one-space)
(insert "\\\\")
;; 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
"longtable"
(lambda ()
(LaTeX-add-environments
'("longtable" LaTeX-env-longtable))
(TeX-add-symbols
;; Commands to end table rows
'("endhead" 0)
'("endfirsthead" 0)
'("endfoot" 0)
'("endlastfoot" 0)
;; Caption commands
'("caption*" 1))
;; These parameters are set with \setlength
(LaTeX-add-lengths
"LTleft" "LTright" "LTpre" "LTpost" "LTcapwidth")
;; This parameter is set with \setcounter
(LaTeX-add-counters "LTchunksize")
;; 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-label-alist', in order not to override possible
;; custome values.
(add-to-list 'LaTeX-label-alist '("longtable" . LaTeX-table-label) 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))
;; Actually, `\caption*{}' macro takes only one mandatory
;; argument, not an optional one, the following is a workaround
;; to fontify correctly also the standard `\caption[]{}' macro.
(font-latex-add-keywords '(("caption" "*[{"))
'textual)))
TeX-dialect)
;; `longtable.sty' has two options "errorshow" and "pausing", both for
;; debugging purposes. We ignore them both in order to make package
;; loading faster in a buffer.
(defvar LaTeX-longtable-package-options nil
"Package options for the longtable package.")
;; longtable.el ends here