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Mateus Pinto Rodrigues
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elpa/auctex-11.91.0/style/breqn.el
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elpa/auctex-11.91.0/style/breqn.el
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;;; breqn.el --- AUCTeX style for `breqn.sty' (v0.98e)
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;; Copyright (C) 2017 Free Software Foundation, Inc.
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;; Author: Arash Esbati <arash@gnu.org>
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;; Maintainer: auctex-devel@gnu.org
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;; Created: 2017-01-06
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;; Keywords: tex
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;; This file is part of AUCTeX.
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;; AUCTeX is free software; you can redistribute it and/or modify it
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;; under the terms of the GNU General Public License as published by
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;; the Free Software Foundation; either version 3, or (at your option)
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;; any later version.
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;; AUCTeX is distributed in the hope that it will be useful, but
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;; WITHOUT ANY WARRANTY; without even the implied warranty of
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;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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;; General Public License for more details.
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;; You should have received a copy of the GNU General Public License
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;; along with AUCTeX; see the file COPYING. If not, write to the Free
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;; Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
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;; 02110-1301, USA.
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;;; Commentary:
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;; This file adds support for `breqn.sty' (v0.98e) from 2017/01/27.
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;; `breqn.sty' is part of TeXLive.
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;; In breqn documentation, there is the following statement:
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;;
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;; 9 Various environment options
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;;
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;; Use of the normal \label command instead of the label option
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;; works, I think, most of the time (untested).
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;;
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;; To be on the safe side, a label should be written in the optional
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;; argument of an environment as value to the `label' key, e.g.:
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;;
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;; \begin{dmath}[label={eq:42}]
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;; ...
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;; \end{dmath}
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;;
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;; This style achieves this requirement by using the function
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;; `LaTeX-env-label-as-keyval'.
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;;; Code:
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(defvar LaTeX-breqn-key-val-options
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'(("style" ("\\tiny" "\\scriptsize" "\\footnotesize" "\\small"
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"\\normalsize" "\\large" "\\Large" "\\LARGE"
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"\\huge" "\\Huge"))
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("number")
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("indentstep")
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("compact")
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("spread")
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("frame")
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("framesep")
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("background")
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("color")
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("breakdepth"))
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"Key=value options for breqn environments.
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The keys \"label\" and \"labelprefix\" are omitted.")
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(defvar LaTeX-breqn-key-val-options-local nil
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"Buffer-local key=value options for breqn environments.")
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(make-variable-buffer-local 'LaTeX-breqn-key-val-options-local)
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(defvar LaTeX-breqn-key-val-label-regexp
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`(,(concat
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"\\\\begin{"
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(regexp-opt '("dmath" "dseries" "dgroup" "darray"))
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"}"
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"\\(?:\\[[^][]*"
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"\\(?:{[^}{]*"
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"\\(?:{[^}{]*"
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"\\(?:{[^}{]*}[^}{]*\\)*"
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"}[^}{]*\\)*"
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"}[^][]*\\)*"
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"label[ \t]*=[ \t]*{\\([^}]+\\)}"
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"\\(?:[^]]*\\)*"
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"\\]\\)")
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1 LaTeX-auto-label)
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"Matches the label inside an optional argument after \\begin{<breqn-env's>}.")
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(defun LaTeX-breqn-env (env)
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"Insert ENV from breqn package incl. optional key=val argument.
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Keys offered for key=val query depend on ENV. \"label\" and
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\"labelprefix\" are omitted."
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(let ((keyvals
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(TeX-read-key-val t
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(cond ((or (string= env "dgroup")
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(string= env "dgroup*"))
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(append '(("noalign") ("brace"))
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LaTeX-breqn-key-val-options-local))
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((or (string= env "darray")
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(string= env "darray*"))
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(append '(("noalign") ("brace") ("cols" ("{}")))
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LaTeX-breqn-key-val-options-local))
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(t LaTeX-breqn-key-val-options-local)))))
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(LaTeX-insert-environment env (when (and keyvals
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(not (string= keyvals "")))
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(concat LaTeX-optop keyvals LaTeX-optcl)))
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(LaTeX-env-label-as-keyval nil nil keyvals env)))
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(defun LaTeX-breqn-update-color-keys ()
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"Update color relevant keys from `LaTeX-breqn-key-val-options-local'."
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(when (or (member "xcolor" (TeX-style-list))
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(member "color" (TeX-style-list)))
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(let* ((colorcmd (if (member "xcolor" (TeX-style-list))
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#'LaTeX-xcolor-definecolor-list
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#'LaTeX-color-definecolor-list))
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(keys '("color" "background"))
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(tmp (copy-alist LaTeX-breqn-key-val-options-local)))
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(dolist (x keys)
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(setq tmp (assq-delete-all (car (assoc x tmp)) tmp))
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(push (list x (mapcar #'car (funcall colorcmd))) tmp))
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(setq LaTeX-breqn-key-val-options-local
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(copy-alist tmp)))))
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(add-hook 'TeX-auto-cleanup-hook #'LaTeX-breqn-update-color-keys t)
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(add-hook 'TeX-update-style-hook #'TeX-auto-parse t)
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(TeX-add-style-hook
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"breqn"
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(lambda ()
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;; Local version of key-val options
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(setq LaTeX-breqn-key-val-options-local
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(copy-alist LaTeX-breqn-key-val-options))
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;; Add breqn to parser:
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(TeX-auto-add-regexp LaTeX-breqn-key-val-label-regexp)
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;; Tell AUCTeX that we want to prefix the labels with `LaTeX-equation-label':
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(let ((envs '("dmath" "dseries" "dgroup" "darray")))
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(dolist (env envs)
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(add-to-list 'LaTeX-label-alist `(,env . LaTeX-equation-label) t)))
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;; For RefTeX, we must distinguish between equation and eqnarray-like:
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;; breqn env == equivalent -- starred
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;; dmath == equation -- dmath* == unnumbered
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;; dseries == equation -- dseries* == unnumbered
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;; dgroup == align -- dgroup* == unnumbered
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;; darray == eqnarray -- darray* == unnumbered
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(when (fboundp 'reftex-add-label-environments)
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(dolist (env '("dmath" "dseries" "dgroup"))
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(reftex-add-label-environments `((,env ?e nil nil t))))
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(reftex-add-label-environments '(("darray" ?e nil nil eqnarray-like))))
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(LaTeX-add-environments
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'("dmath" LaTeX-breqn-env)
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'("dmath*" LaTeX-breqn-env)
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'("dseries" LaTeX-breqn-env)
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'("dseries*" LaTeX-breqn-env)
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'("dgroup" LaTeX-breqn-env)
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'("dgroup*" LaTeX-breqn-env)
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'("darray" LaTeX-breqn-env)
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'("darray*" LaTeX-breqn-env)
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'("dsuspend"))
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(TeX-add-symbols
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'("condition" [ "Punctuation mark (default ,)" ] t)
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'("condition*" [ "Punctuation mark (default ,)" ] t)
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'("hiderel" t))
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;; Fontification
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(when (and (featurep 'font-latex)
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(eq TeX-install-font-lock 'font-latex-setup)
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(boundp 'font-latex-math-environments))
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(make-local-variable 'font-latex-math-environments)
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(let ((envs '(;; Do not insert the starred versions here;
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;; function `font-latex-match-math-envII' takes
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;; care of it
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"dmath" "dseries" "dgroup" "darray")))
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(dolist (env envs)
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(add-to-list 'font-latex-math-environments env t)))))
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LaTeX-dialect)
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(defvar LaTeX-breqn-package-options nil
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"Package options for the breqn package.")
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;;; breqn.el ends here
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