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;;; titlesec.el --- AUCTeX style for `titlesec.sty' (v2.11) -*- lexical-binding: t; -*-
;; Copyright (C) 2016--2022 Free Software Foundation, Inc.
;; Author: Arash Esbati <arash@gnu.org>
;; Maintainer: auctex-devel@gnu.org
;; Created: 2015-09-19
;; 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 `titlesec.sty' (v2.11) from
;; 2019/07/16. `titlesec.sty' is part of TeXLive.
;;; Code:
(require 'tex)
(require 'latex)
;; Silence the compiler:
(declare-function font-latex-add-keywords
"font-latex"
(keywords class))
(defvar LaTeX-titlesec-key-val-options
'(("page" ("even" "odd"))
("numberless"))
"Key=value options for \"\\titleformat\" and \"\\titlespacing\"
macros provided by \"titlesec.sty\".")
(defvar LaTeX-titlesec-section-command-list
'("part"
"chapter"
"section"
"subsection"
"subsubsection"
"paragraph"
"subparagraph")
"List of sectioning commands available in \"titlesec.sty\".")
(defvar LaTeX-titlesec-section-shape-list
'("hang"
"block"
"display"
"runin"
"leftmargin"
"rightmargin"
"drop"
"wrap"
"frame")
"List of sectioning shapes available for \"\\titleformat\" command.")
(defun LaTeX-titlesec-section-command-list ()
"Remove \"chapter\" from variable
`LaTeX-titlesec-section-command-list' and return the remainder.
Removal is based on the return value of function
`LaTeX-largest-level'. Items returned are prefixed with
`TeX-esc'."
(mapcar (lambda (elt) (concat TeX-esc elt))
(if (< (LaTeX-largest-level) 2)
(symbol-value 'LaTeX-titlesec-section-command-list)
(remove "chapter" LaTeX-titlesec-section-command-list))))
(defun LaTeX-arg-titlesec-titlespec (optional)
"Insert the first argument of \"\\titleformat\" and \"\\titlespacing\".
Depending on returned value of function `LaTeX-largest-level',
append a \"name\" key with corresponding values to
`LaTeX-titlesec-key-val-options'. The values are retrieved from
`LaTeX-titlesec-section-command-list'. The values of this list
are also added stand-alone as keys. If OPTIONAL is non-nil,
insert the argument in brackets."
(let ((keyvals
(TeX-read-key-val
optional
(append
`(("name"
,(mapcar (lambda (elt) (concat TeX-esc elt))
(if (< (LaTeX-largest-level) 2)
(symbol-value 'LaTeX-titlesec-section-command-list)
(remove "chapter" LaTeX-titlesec-section-command-list)))))
(mapcar #'list
(mapcar (lambda (elt) (concat TeX-esc elt))
(if (< (LaTeX-largest-level) 2)
(symbol-value 'LaTeX-titlesec-section-command-list)
(remove "chapter" LaTeX-titlesec-section-command-list))))
LaTeX-titlesec-key-val-options)
"Sectioning command")))
(TeX-argument-insert keyvals optional)))
(TeX-add-style-hook
"titlesec"
(lambda ()
;; Load "titleps.el" when "pagestyles" package option is given
(when (LaTeX-provided-package-options-member "titlesec" "pagestyles")
(TeX-run-style-hooks "titleps"))
(TeX-add-symbols
;; 2.4. Tools
'("titlelabel" t)
;; \titleformat*{<command>}{<format>}
'("titleformat*" (LaTeX-arg-titlesec-titlespec) t)
;; 3. Advanced Interface
;; \titleformat{<command>}[<shape>]{<format>}{<label>}{<sep>}{<before-code>}[<after-code>]
'("titleformat"
(LaTeX-arg-titlesec-titlespec)
[TeX-arg-eval completing-read
(TeX-argument-prompt t nil "Shape")
LaTeX-titlesec-section-shape-list]
(TeX-arg-conditional (y-or-n-p "With optional after-code? ")
(4 [nil])
(4)))
'("chaptertitlename" 0)
;; 3.2. Spacing
;; \titlespacing{<command>}{<left>}{<before-sep>}{<after-sep>}[<right-sep>]
'("titlespacing"
(LaTeX-arg-titlesec-titlespec)
(TeX-arg-length "Left margin")
(TeX-arg-length "Before vertical space")
(TeX-arg-length "Space between title and text")
[TeX-arg-length "Right margin"])
'("titlespacing*"
(LaTeX-arg-titlesec-titlespec)
(TeX-arg-length "Left margin")
(TeX-arg-length "Before vertical space")
(TeX-arg-length "Space between title and text")
[TeX-arg-length "Right margin"])
;; 3.3. Spacing related tools
'("filright" 0)
'("filcenter" 0)
'("filleft" 0)
'("fillast" 0)
'("filinner" 0)
'("filouter" 0)
'("wordsep" 0)
'("nostruts" 0)
;; 3.4. Rules
'("titleline"
[TeX-arg-eval completing-read
(TeX-argument-prompt t nil "Alignment")
'("l" "r" "c")]
t)
'("titlerule" [TeX-arg-length "Rule height"])
'("titlerule*" [TeX-arg-length "Box width"] "Text")
'("iftitlemeasuring" 2)
;; 3.5. Page styles
'("assignpagestyle"
(TeX-arg-eval completing-read
(TeX-argument-prompt nil nil "Sectioning command")
(LaTeX-titlesec-section-command-list))
(TeX-arg-pagestyle))
;; 3.9. Creating new levels and changing the class
'("titleclass"
(TeX-arg-eval completing-read
(TeX-argument-prompt nil nil "Sectioning command")
(LaTeX-titlesec-section-command-list))
(TeX-arg-eval completing-read
(TeX-argument-prompt nil nil "Class")
'("page" "top" "straight"))
[TeX-arg-eval completing-read
(TeX-argument-prompt t nil "Super level command")
(LaTeX-titlesec-section-command-list)]) )
;; Don't increase indent at \iftitlemeasuring:
(add-to-list 'LaTeX-indent-begin-exceptions-list "iftitlemeasuring" t)
(LaTeX-indent-commands-regexp-make)
;; 3.4. Rules: A variant of \titleline to be used only with calcwidth
(when (LaTeX-provided-package-options-member "titlesec" "calcwidth")
(TeX-add-symbols
'("titleline*"
(TeX-arg-eval completing-read
(TeX-argument-prompt nil nil "Alignment")
'("l" "r" "c"))
t)))
;; The length of the longest line is returned in \titlewidth
(LaTeX-add-lengths "titlewidth"
"titlewidthlast"
"titlewidthfirst")
;; Fontification: We only add macros which are used at top level;
;; most of macros definded above are intended to be used in
;; arguments of \titleformat
(when (and (featurep 'font-latex)
(eq TeX-install-font-lock 'font-latex-setup))
(font-latex-add-keywords '(("titlelabel" "{")
;;
;; \titleformat comes in 2 flavors:
;; with *, it takes only 2 mandatory
;; argument; w/o *, a lot more. It is
;; not (yet) possible to realize this
;; behaviour within font-latex. Hence
;; we reduce the fontification to the
;; first 2 mandatory arguments and
;; ignore the rest. *[ are optional anyway.
("titleformat" "*{[{")
("titlespacing" "*{{{{[")
("iftitlemeasuring" "{{")
("assignpagestyle" "{{")
("titleclass" "{[{["))
'function)))
TeX-dialect)
(defvar LaTeX-titlesec-package-options
'(;; 2.1. Format
"rm" "sf" "tt" "md" "bf" "up" "it" "sl" "sc"
"big" "medium" "small" "tiny"
"raggedleft" "center" "raggedright"
;; 2.2. Spacing
"compact"
;; 2.3. Uppercase
"uppercase"
;; 3.3. Spacing related tools
"indentafter" "noindentafter"
"rigidchapters" "rubberchapters"
"bottomtitles" "nobottomtitles" "nobottomtitles*"
"aftersep" "largestsep" "pageatnewline"
"nostruts"
;; 3.4. Rules
"calcwidth"
;; 3.7. Other Package Options
"explicit"
"newparttoc"
"oldparttoc"
"clearempty"
"toctitles"
"newlinetospace"
"loadonly"
;; 5. titleps and Page Styles
"pagestyles")
"Package options for the titlesec package.")
;;; titlesec.el ends here
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