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|
;;; beamer.el --- AUCTeX style for the latex-beamer class -*- lexical-binding: t; -*-
;; Copyright (C) 2003-2021 Free Software Foundation, Inc.
;; Author: Thomas Baumann <thomas.baumann@ch.tum.de>
;; Created: 2003-12-20
;; 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 latex-beamer class.
;;; Code:
(require 'tex)
(require 'latex)
;; Silence the compiler:
(declare-function font-latex-add-keywords
"font-latex"
(keywords class))
(defun LaTeX-beamer-after-insert-env (env start _end)
"Do beamer-specific stuff after the insertion of an environment."
;; Add `fragile' as an optional argument to the frame environment if
;; a verbatim environment is inserted.
(when (and (TeX-member env (LaTeX-verbatim-environments) #'string-equal)
(save-excursion
(goto-char start)
(string-equal (LaTeX-current-environment) "frame")))
(save-excursion
(when (re-search-backward "\\\\begin[ \t]*{frame}" nil t)
(let ((end-of-begin (match-end 0)))
(goto-char end-of-begin)
(while (forward-comment 1))
(if (eq (char-after) (string-to-char LaTeX-optop))
(progn
(forward-char)
(insert "fragile")
(unless (looking-at (concat "[ \t]*" LaTeX-optcl))
(insert ",")))
(goto-char end-of-begin)
(insert "[fragile]")))))))
(defvar LaTeX-beamer-frametitle-history nil
"History of frame titles in beamer.")
(TeX-add-style-hook
"beamer"
(lambda ()
(add-hook 'LaTeX-after-insert-env-hook #'LaTeX-beamer-after-insert-env nil t)
(TeX-run-style-hooks "amsmath" "amssymb" "amsthm" "color" "geometry"
"hyperref" "inputenc" "translator" "xcolor")
(unless LaTeX-beamer-section-labels-flag
(make-local-variable 'LaTeX-section-hook)
(setq LaTeX-section-hook
'(LaTeX-section-heading
LaTeX-section-title
LaTeX-section-section)))
(setq LaTeX-item-list
(append '(("itemize" . LaTeX-item-beamer)
("enumerate" . LaTeX-item-beamer))
LaTeX-item-list))
(setq LaTeX-default-document-environment "frame")
(LaTeX-paragraph-commands-add-locally "frametitle")
(TeX-add-symbols
'("alert" [ TeX-arg-beamer-overlay-spec ] 1)
'("alt" [ TeX-arg-beamer-overlay-spec ] 2)
'("beamerbutton" 1)
'("beamergotobutton" 1)
'("beamerreturnbutton" 1)
'("beamerskipbutton" 1)
'("frame" TeX-arg-beamer-frametitle)
'("frametitle"
(TeX-arg-eval TeX-read-string "Title: " nil 'LaTeX-beamer-frametitle-history))
'("hyperlink" [ TeX-arg-beamer-overlay-spec ] 2)
'("hyperlinkslideprev" [ TeX-arg-beamer-overlay-spec ] 1)
'("hyperlinkslidenext" [ TeX-arg-beamer-overlay-spec ] 1)
'("hyperlinkframestart" [ TeX-arg-beamer-overlay-spec ] 1)
'("hyperlinkframeend" [ TeX-arg-beamer-overlay-spec ] 1)
'("hyperlinkframestartnext" [ TeX-arg-beamer-overlay-spec ] 1)
'("hyperlinkframeendprev" [ TeX-arg-beamer-overlay-spec ] 1)
'("hyperlinkpresentationstart" [ TeX-arg-beamer-overlay-spec ] 1)
'("hyperlinkpresentationend" [ TeX-arg-beamer-overlay-spec ] 1)
'("hyperlinkappendixstart" [ TeX-arg-beamer-overlay-spec ] 1)
'("hyperlinkappendixend" [ TeX-arg-beamer-overlay-spec ] 1)
'("hyperlinkdocumentstart" [ TeX-arg-beamer-overlay-spec ] 1)
'("hyperlinkdocumentend" [ TeX-arg-beamer-overlay-spec ] 1)
'("hypertarget" [ TeX-arg-beamer-overlay-spec ] 2)
'("institute" 1)
'("invisible" [ TeX-arg-beamer-overlay-spec ] 1)
'("label" [ TeX-arg-beamer-overlay-spec ] 1)
'("logo" 1)
'("note" TeX-arg-beamer-note 1)
'("only" [ TeX-arg-beamer-overlay-spec ] 1)
'("onslide" [ TeX-arg-beamer-overlay-spec ])
'("partpage")
'("pause" ["Slide number"])
'("structure" [ TeX-arg-beamer-overlay-spec ] 1)
'("temporal" [ TeX-arg-beamer-overlay-spec ] 3)
'("titlepage")
'("titlegraphic" 1)
'("uncover" [ TeX-arg-beamer-overlay-spec ] 1)
'("usetheme" LaTeX-arg-beamer-theme)
'("useinnertheme" LaTeX-arg-beamer-inner-theme)
'("useoutertheme" LaTeX-arg-beamer-outer-theme)
'("usecolortheme" LaTeX-arg-beamer-color-theme)
'("usefonttheme" LaTeX-arg-beamer-font-theme)
'("usetheme" LaTeX-arg-beamer-theme)
'("visible" [ TeX-arg-beamer-overlay-spec ] 1))
(LaTeX-add-environments
'("actionenv")
'("alertblock" 1)
'("beamerboxesrounded" 1)
'("block" (lambda (env &rest ignore)
(LaTeX-insert-environment
env (format "{%s}" (TeX-read-string "Title: ")))))
'("column" "Width")
"columns"
"columnsonlytextwidth"
'("exampleblock" 1)
'("frame" (lambda (env &rest ignore)
(let ((title (TeX-read-string "(Optional) Title: " nil
'LaTeX-beamer-frametitle-history)))
(LaTeX-insert-environment env)
(unless (zerop (length title))
(save-excursion
(LaTeX-find-matching-begin)
(end-of-line)
(LaTeX-newline)
;; Indent the next macro insertion and don't
;; rely on the fill-function to do it:
(indent-according-to-mode)
(insert (format "\\frametitle{%s}" title))
;; This works because \frametitle is a
;; paragraph command.
(when auto-fill-function
(backward-char)
(LaTeX-fill-paragraph)))))))
'("onlyenv" (lambda (env &rest ignore)
(LaTeX-insert-environment
env
(let ((overlay (TeX-read-string "(Optional) Overlay: ")))
(unless (zerop (length overlay))
(format "<%s>" overlay))))))
'("overlayarea" "Area width" "Area height")
'("overprint" (lambda (env &rest ignore)
(LaTeX-insert-environment
env
(let ((width (TeX-read-string "(Optional) Area width: ")))
(unless (zerop (length width))
(format "[%s]" width))))))
"semiverbatim")
(LaTeX-largest-level-set "section")
(LaTeX-add-counters "lecture" "part" "section" "subsection" "subsubsection"
"subsectionslide" "framenumber" "figure" "table"
"beamerpauses")
(LaTeX-add-pagestyles "navigation")
(add-to-list (make-local-variable 'LaTeX-indent-environment-list)
'("semiverbatim" current-indentation) t)
(add-to-list 'LaTeX-verbatim-environments-local "semiverbatim")
;; Fontification
(when (and (featurep 'font-latex)
(eq TeX-install-font-lock 'font-latex-setup))
(font-latex-add-keywords '(("title" "[{")
("subtitle" "[{")
("author" "[{")
("date" "[{")
("frametitle" "<[{")) 'slide-title)))
TeX-dialect)
(defun TeX-arg-beamer-overlay-spec (optional &optional prompt)
"Prompt for overlay specification.
If OPTIONAL is non-nil, insert the specification only if
non-empty and enclosed in \"<>\". PROMPT replaces the standard
one."
(let ((TeX-arg-opening-brace "<")
(TeX-arg-closing-brace ">"))
(TeX-argument-insert
(TeX-read-string
(TeX-argument-prompt optional prompt "Overlay"))
optional)
(indent-according-to-mode)))
(defun TeX-arg-beamer-frametitle (_optional &optional _prompt)
"Prompt for the frametitle."
(let ((title (TeX-read-string "Title: " nil 'LaTeX-beamer-frametitle-history)))
(if (not (zerop (length title)))
(insert TeX-grop TeX-esc "frametitle" TeX-grop
title TeX-grcl TeX-grcl)
(insert TeX-grop TeX-grcl))))
(defun LaTeX-item-beamer ()
"Insert a new item with an optional overlay argument. You
can turn off the prompt for the overlay argument by setting
`LaTeX-beamer-item-overlay-flag' to nil. Calling the function
with a prefix argument prompts for the overlay specification
unconditionally."
(if (listp current-prefix-arg)
(setq current-prefix-arg (car current-prefix-arg))
current-prefix-arg)
(TeX-insert-macro "item")
(delete-horizontal-space)
(if (or current-prefix-arg LaTeX-beamer-item-overlay-flag)
(TeX-arg-beamer-overlay-spec 0))
(insert " ")
(indent-according-to-mode))
(defun TeX-arg-beamer-note (_optional &optional _prompt)
"Prompt for overlay specification and optional argument."
(let ((overlay (TeX-read-string "(Optional) Overlay: "))
(options (TeX-read-string "(Optional) Options: ")))
(unless (zerop (length overlay))
(insert "<" overlay ">"))
(unless (zerop (length options))
(insert "[" options "]"))
(indent-according-to-mode)))
(defun LaTeX-beamer-search-themes (&optional regexp extensions length)
"Search for beamer themes matching REGEXP with EXTENSIONS.
The function removes the first LENGTH characters and the
extension of the file and returns a list of strings. LENGTH may
also be a string. Then the length of the string is used."
(let* ((match (or regexp "^beamertheme[A-Z]"))
(exts (or extensions '("tex" "sty")))
(chars (cond ((integerp length)
length)
((stringp length)
(string-width length))
;; Try some DWIM magic...
((and (not length)
(string-match "beamer[A-Za-z0-9]*theme" match))
(- (match-end 0) (match-beginning 0)))
(t (error "Invalid length: `%s'" length)))))
;; (message "match=`%s' chars=`%s'" match chars)
(TeX-delete-duplicate-strings
(delete nil
(mapcar
(lambda (file)
(let ((case-fold-search nil))
(and (numberp (string-match match file))
(substring file chars))))
(TeX-search-files nil exts t t))))))
(defun LaTeX-arg-beamer-theme (&rest _ignore)
"Prompt for beamer theme with completion."
(TeX-argument-insert
(completing-read
(TeX-argument-prompt nil nil "Theme")
(mapcar #'list
(cond ((eq LaTeX-beamer-themes 'local)
(set (make-local-variable 'LaTeX-beamer-themes)
(LaTeX-beamer-search-themes)))
((functionp LaTeX-beamer-themes)
(funcall LaTeX-beamer-themes))
((listp LaTeX-beamer-themes)
LaTeX-beamer-themes)
(t (error
"`LaTeX-beamer-themes' should be a list: `%s'"
LaTeX-beamer-themes))))
nil nil nil)
t))
(defun LaTeX-arg-beamer-inner-theme (&rest _ignore)
"Prompt for beamer inner theme with completion."
(TeX-argument-insert
(completing-read
(TeX-argument-prompt nil nil "Theme")
(mapcar #'list
(cond ((eq LaTeX-beamer-inner-themes 'local)
(set (make-local-variable 'LaTeX-beamer-inner-themes)
(LaTeX-beamer-search-themes "^beamerinnertheme")))
((functionp LaTeX-beamer-inner-themes)
(funcall LaTeX-beamer-inner-themes))
((listp LaTeX-beamer-inner-themes)
LaTeX-beamer-inner-themes)
(t (error
"`LaTeX-beamer-inner-themes' should be a list: `%s'"
LaTeX-beamer-inner-themes))))
nil nil nil)
t))
(defun LaTeX-arg-beamer-outer-theme (&rest _ignore)
"Prompt for beamer outer theme with completion."
(TeX-argument-insert
(completing-read
(TeX-argument-prompt nil nil "Theme")
(mapcar #'list
(cond ((eq LaTeX-beamer-outer-themes 'local)
(set (make-local-variable 'LaTeX-beamer-outer-themes)
(LaTeX-beamer-search-themes "^beameroutertheme")))
((functionp LaTeX-beamer-outer-themes)
(funcall LaTeX-beamer-outer-themes))
((listp LaTeX-beamer-outer-themes)
LaTeX-beamer-outer-themes)
(t (error
"`LaTeX-beamer-outer-themes' should be a list: `%s'"
LaTeX-beamer-outer-themes))))
nil nil nil)
t))
(defun LaTeX-arg-beamer-color-theme (&rest _ignore)
"Prompt for beamer color theme with completion."
(TeX-argument-insert
(completing-read
(TeX-argument-prompt nil nil "Theme")
(mapcar #'list
(cond ((eq LaTeX-beamer-color-themes 'local)
(set (make-local-variable 'LaTeX-beamer-color-themes)
(LaTeX-beamer-search-themes "^beamercolortheme")))
((functionp LaTeX-beamer-color-themes)
(funcall LaTeX-beamer-color-themes))
((listp LaTeX-beamer-color-themes)
LaTeX-beamer-color-themes)
(t (error
"`LaTeX-beamer-color-themes' should be a list: `%s'"
LaTeX-beamer-color-themes))))
nil nil nil)
t))
(defun LaTeX-arg-beamer-font-theme (&rest _ignore)
"Prompt for beamer font theme with completion."
(TeX-argument-insert
(completing-read
(TeX-argument-prompt nil nil "Theme")
(mapcar #'list
(cond ((eq LaTeX-beamer-font-themes 'local)
(set (make-local-variable 'LaTeX-beamer-font-themes)
(LaTeX-beamer-search-themes "^beamerfonttheme")))
((functionp LaTeX-beamer-font-themes)
(funcall LaTeX-beamer-font-themes))
((listp LaTeX-beamer-font-themes)
LaTeX-beamer-font-themes)
(t (error
"`LaTeX-beamer-font-themes' should be a list: `%s'"
LaTeX-beamer-font-themes))))
nil nil nil)
t))
(defun LaTeX-beamer-class-options ()
"Read the beamer class options from the user."
(TeX-load-style "hyperref")
(TeX-read-key-val t '(("usepdftitle" ("false")) ("envcountsect")
("notheorems") ("noamsthm") ("compress") ("t") ("c")
("leqno") ("fleqn") ("handout") ("trans") ("pdftex")
("nativepdf") ("pdfmark") ("dvips") ("dviwindo")
("dvipsone") ("vtex") ("ps2pdf") ("ignorenonframetext")
("noamssymb") ("bigger") ("smaller") ("8pt") ("9pt")
("10pt") ("11pt") ("12pt") ("14pt") ("17pt") ("20pt")
("draft") ("CJK") ("cjk") ("pgf")
("hyperref" LaTeX-hyperref-package-options-list)
("color") ("xcolor") ("ucs") ("utf8x") ("utf8")
("aspectratio" ("1610" "169" "149" "54" "43" "32")))))
;;; beamer.el ends here
|
