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;;; amsthm.el --- Style hook for the AMS-LaTeX amsthm package. -*- lexical-binding: t; -*-
;; Copyright (C) 1997, 2013--2015, 2018, 2020 Free Software Foundation, Inc.
;; Author: Carsten Dominik <dominik@strw.leidenuniv.nl>
;; Maintainer: auctex-devel@gnu.org
;; 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:
;; The style provides the function `LaTeX-amsthm-env-label' which
;; enables new defined environments with "\newtheoreom" to interact
;; with AUCTeX and RefTeX mechanisms for inserting labels. Check
;; docstring of `LaTeX-amsthm-env-label' for instructions.
;;; Code:
(require 'tex)
(require 'latex)
;; Silence the compiler:
(declare-function font-latex-add-keywords
"font-latex"
(keywords class))
(defvar LaTeX-amsthm-package-options nil
"Package options for the amsthm package.")
(defvar LaTeX-amsthm-fontdecl
'(;; family
"rmfamily" "sffamily" "ttfamily"
;; series
"mdseries" "bfseries"
;; shape
"upshape" "itshape" "slshape" "scshape"
;; size
"tiny" "scriptsize" "footnotesize"
"small" "normalsize" "large"
"Large" "LARGE" "huge" "Huge"
;; reset macro
"normalfont")
"List of font declaration commands for \"\\newtheoremstyle\".")
(defun LaTeX-arg-amsthm-fontdecl (optional &optional prompt)
"Prompt for font declaration commands in \"\\newtheoremstyle\".
If OPTIONAL is non-nil, insert the resulting value as an optional
argument. Use PROMPT as the prompt string."
(let* ((crm-separator (regexp-quote TeX-esc))
(fontdecl (mapconcat #'identity
(TeX-completing-read-multiple
(TeX-argument-prompt optional prompt "Font: \\" t)
LaTeX-amsthm-fontdecl)
TeX-esc)))
(TeX-argument-insert fontdecl
optional
(when (and fontdecl (not (string= fontdecl "")))
TeX-esc))))
(defun LaTeX-amsthm-env-label (environment)
"Insert ENVIRONMENT, query for an optional argument and prompt
for label. AUCTeX users should add ENVIRONMENT to
`LaTeX-label-alist' via customize or in init-file with:
(add-to-list \\='LaTeX-label-alist \\='(\"lemma\" . \"lem:\"))
RefTeX users should customize or add ENVIRONMENT to
`LaTeX-label-alist' and `reftex-label-alist', for example
(add-to-list \\='LaTeX-label-alist \\='(\"lemma\" . \"lem:\"))
(add-to-list \\='reftex-label-alist
\\='(\"lemma\" ?m \"lem:\" \"~\\ref{%s}\"
nil (\"Lemma\" \"lemma\") nil))"
(let ((opthead (TeX-read-string
(TeX-argument-prompt t nil "Heading"))))
(LaTeX-insert-environment environment
(when (and opthead
(not (string= opthead "")))
(format "[%s]" opthead))))
(when (LaTeX-label environment 'environment)
(LaTeX-newline)
(indent-according-to-mode)))
;; Setup parsing for \newtheorem
(TeX-auto-add-type "amsthm-newtheorem" "LaTeX")
;; Setup parsing for \newtheoremstyle
(TeX-auto-add-type "amsthm-newtheoremstyle" "LaTeX")
(defun LaTeX-amsthm-auto-prepare ()
"Clear `LaTeX-auto-amsthm-newtheorem' and
`LaTeX-auto-amsthm-newtheoremstyle' before parsing."
(setq LaTeX-auto-amsthm-newtheorem nil)
(setq LaTeX-auto-amsthm-newtheoremstyle nil))
(defun LaTeX-amsthm-auto-cleanup ()
"Move parsed results from `LaTeX-auto-amsthm-newtheorem' and
make them available as new environments."
(dolist (newthm (mapcar #'car (LaTeX-amsthm-newtheorem-list)))
(LaTeX-add-environments (list newthm #'LaTeX-amsthm-env-label))))
(add-hook 'TeX-auto-prepare-hook #'LaTeX-amsthm-auto-prepare t)
(add-hook 'TeX-auto-cleanup-hook #'LaTeX-amsthm-auto-cleanup t)
(add-hook 'TeX-update-style-hook #'TeX-auto-parse t)
(TeX-add-style-hook
"amsthm"
(lambda ()
;; Add the pre-defined styles:
(LaTeX-add-amsthm-newtheoremstyles "definition"
"plain"
"remark")
(LaTeX-add-environments
'("proof" LaTeX-amsthm-env-label))
(TeX-add-symbols
;; Overrule the defintion in `latex.el':
'("newtheorem"
(TeX-arg-eval
(lambda ()
(let ((nthm (TeX-read-string
(TeX-argument-prompt nil nil "Environment"))))
(LaTeX-add-amsthm-newtheorems nthm)
(LaTeX-add-environments (list nthm #'LaTeX-amsthm-env-label))
(format "%s" nthm))))
[ TeX-arg-environment "Numbered like" ]
t [ (TeX-arg-eval progn (if (eq (save-excursion
(backward-char 2)
(preceding-char)) ?\])
()
(TeX-arg-counter t "Within counter"))
"") ])
'("newtheorem*"
(TeX-arg-eval
(lambda ()
(let ((nthm (TeX-read-string
(TeX-argument-prompt nil nil "Environment")))
(heading (TeX-read-string
(TeX-argument-prompt nil nil "Heading"))))
(LaTeX-add-amsthm-newtheorems nthm)
(LaTeX-add-environments (list nthm #'LaTeX-amsthm-env-label))
(insert (concat TeX-grop nthm TeX-grcl))
(format "%s" heading)))))
'("theoremstyle"
(TeX-arg-eval completing-read
(TeX-argument-prompt nil nil "Style")
(LaTeX-amsthm-newtheoremstyle-list)))
"qedhere"
"swapnumbers"
'("newtheoremstyle"
(TeX-arg-eval
(lambda ()
(let ((nthmstyle (TeX-read-string
(TeX-argument-prompt nil nil "Style name"))))
(LaTeX-add-amsthm-newtheoremstyles nthmstyle)
(format "%s" nthmstyle))))
(TeX-arg-length "Space above")
(TeX-arg-length "Space below")
(LaTeX-arg-amsthm-fontdecl "Body font: \\")
"Indent amount"
(LaTeX-arg-amsthm-fontdecl "Theorem head font: \\")
"Punctuation after head"
(TeX-arg-length "Space after head")
"Theorem head spec"))
(TeX-auto-add-regexp
`(,(concat "\\\\newtheorem\\*?{\\(" TeX-token-char "+\\)}")
1 LaTeX-auto-amsthm-newtheorem))
(TeX-auto-add-regexp
`(,(concat "\\\\newtheoremstyle{\\(" TeX-token-char "+\\)}")
1 LaTeX-auto-amsthm-newtheoremstyle))
;; Fontification
(when (and (featurep 'font-latex)
(eq TeX-install-font-lock 'font-latex-setup))
(font-latex-add-keywords '(("newtheorem" "*{[{[")
("theoremstyle" "{")
("newtheoremstyle" "{{{{{{{{{"))
'function)))
TeX-dialect)
;;; amsthm.el ends here
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