2022-08-25 17:42:37 +00:00
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;;; font-latex.el --- LaTeX fontification for Font Lock mode. -*- lexical-binding: t; -*-
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2023-07-27 19:52:58 +00:00
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;; Copyright (C) 1996-2023 Free Software Foundation, Inc.
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2022-08-25 17:42:37 +00:00
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;; Authors: Peter S. Galbraith <psg@debian.org>
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;; Simon Marshall <Simon.Marshall@esrin.esa.it>
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;; Maintainer: auctex-devel@gnu.org
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;; Created: 06 July 1996
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;; Keywords: tex, wp, faces
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;;; This file is not part of GNU Emacs.
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;; This package is free software; you can redistribute it and/or modify
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;; it 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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;; This package is distributed in the hope that it will be useful,
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;; but WITHOUT ANY WARRANTY; without even the implied warranty of
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;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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;; GNU 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 GNU Emacs; see the file COPYING. If not, write to the
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;; Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
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;; Boston, MA 02110-1301, USA.
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;;; Commentary:
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;;
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;; This package enhances font-lock fontification patterns for LaTeX.
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;; font-lock mode is a minor mode that causes your comments to be
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;; displayed in one face, strings in another, reserved words in
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;; another, and so on.
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;;; Code:
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(require 'font-lock)
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(require 'tex)
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(eval-when-compile
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(require 'cl-lib))
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(defgroup font-latex nil
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"Font-latex text highlighting package."
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:prefix "font-latex-"
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:group 'faces
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:group 'tex
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:group 'AUCTeX)
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(defgroup font-latex-keywords nil
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"Keywords for highlighting text in font-latex."
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:prefix "font-latex-"
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:group 'font-latex)
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(defgroup font-latex-highlighting-faces nil
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"Faces for highlighting text in font-latex."
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:prefix "font-latex-"
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:group 'font-latex)
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(defvar font-latex-multiline-boundary 5000
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"Size of region to search for the start or end of a multiline construct.")
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(defvar font-latex-quote-regexp-beg nil
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"Regexp used to find quotes.")
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(make-variable-buffer-local 'font-latex-quote-regexp-beg)
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(defvar font-latex-quote-list '(("``" "''") ("<<" ">>" french) ("«" "»" french))
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"List of quote specifiers for quotation fontification.
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Each element of the list is either a list consisting of two
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strings to be used as opening and closing quotation marks
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independently of the value of `font-latex-quotes' or a list with
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three elements where the first and second element are strings for
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opening and closing quotation marks and the third element being
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either the symbol `german' or `french' describing the order of
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quotes.
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If `font-latex-quotes' specifies a different state, order of the
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added quotes will be reversed for fontification. For example if
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2022-11-08 03:31:08 +00:00
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\\='(\"\\\"<\" \"\\\">\" french) is given but `font-latex-quotes'
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2022-08-25 17:42:37 +00:00
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specifies `german', quotes will be used like \">foo\"< for
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fontification.")
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(defvar font-latex-quotes-control nil
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"Internal variable for keeping track if `font-latex-quotes' changed.")
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(make-variable-buffer-local 'font-latex-quotes-control)
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(defvar font-latex-quotes-internal nil
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"Internal variable for tracking outcome of automatic detection.
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If automatic detection is not enabled, it is assigned the value
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of `font-latex-quotes'.")
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(make-variable-buffer-local 'font-latex-quotes-internal)
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(defvar font-latex-quotes-fallback 'french
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"Fallback value for `font-latex-quotes' if automatic detection fails.")
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(defvar font-latex-quote-style-list-french
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'("french" "frenchb" "frenchle" "frenchpro" "francais" "canadien"
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"acadian" "italian")
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"List of styles for which French-style quote matching should be activated.")
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(defvar font-latex-quote-style-list-german
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'("austrian" "german" "germanb" "naustrian" "ngerman")
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"List of styles for which German-style quote matching should be activated.")
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(defcustom font-latex-quotes 'auto
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"Whether to fontify << French quotes >> or >>German quotes<<.
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Also selects \"<quote\"> versus \">quote\"<.
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If value `auto' is chosen, an attempt is being made in deriving
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the type of quotation mark matching from document settings like
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the language option supplied to the babel package.
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If nil, quoted content will not be fontified."
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:type '(choice (const auto) (const french) (const german) (const nil))
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:group 'font-latex)
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(put 'font-latex-quotes 'safe-local-variable
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(lambda (x) (memq x '(auto french german nil))))
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(defun font-latex-add-quotes (quotes)
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"Add QUOTES to `font-latex-quote-list'.
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QUOTES has to be a list adhering to the format of an element of
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`font-latex-quote-list'."
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(setq font-latex-quotes-control nil)
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(add-to-list (make-local-variable 'font-latex-quote-list) quotes))
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(defun font-latex-quotes-set-internal ()
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"Set `font-latex-quotes-internal' according to `font-latex-quotes'.
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If `font-latex-quotes' is set to `auto', try to derive the
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correct value from document properties."
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(setq font-latex-quotes-internal
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(if (eq font-latex-quotes 'auto)
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(or (when (TeX-elt-of-list-member
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font-latex-quote-style-list-french TeX-active-styles)
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'french)
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(when (TeX-elt-of-list-member
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font-latex-quote-style-list-german TeX-active-styles)
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'german)
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font-latex-quotes-fallback)
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font-latex-quotes)))
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;; Update the value of `font-latex-quotes-internal' when the list of
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;; styles changes.
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(add-hook 'TeX-update-style-hook #'font-latex-quotes-set-internal)
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;; The definitions of the title faces were originally taken from
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;; info.el (Copyright (C) 1985, 86, 92, 93, 94, 95, 96, 97, 98, 99,
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;; 2000, 2001 Free Software Foundation, Inc.) and adapted to the needs
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;; of font-latex.el.
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(defconst font-latex-sectioning-max 5
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"Highest number for font-latex-sectioning-N-face")
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(defface font-latex-sectioning-5-face
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'((((type tty pc) (class color) (background light))
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(:foreground "blue4" :weight bold))
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(((type tty pc) (class color) (background dark))
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(:foreground "yellow" :weight bold))
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(((class color) (background light))
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(:weight bold :inherit variable-pitch :foreground "blue4"))
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(((class color) (background dark))
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(:weight bold :inherit variable-pitch :foreground "yellow"))
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(t (:weight bold :inherit variable-pitch)))
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"Face for sectioning commands at level 5."
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:group 'font-latex-highlighting-faces)
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(defcustom font-latex-fontify-sectioning 1.1
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"Whether to fontify sectioning macros with varying height or a color face.
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If it is a number, use varying height faces. The number is used
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for scaling starting from `font-latex-sectioning-5-face'. Typically
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values from 1.05 to 1.3 give best results, depending on your font
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setup. If it is the symbol `color', use `font-lock-type-face'.
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Caveats: Customizing the scaling factor applies to all sectioning
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faces unless those face have been saved by customize. Setting
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this variable directly does not take effect unless you call
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`font-latex-update-sectioning-faces' or restart Emacs.
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Switching from `color' to a number or vice versa does not take
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effect unless you call \\[font-lock-fontify-buffer] or restart
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Emacs."
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:type '(choice (number :tag "Scale factor")
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(const color))
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:initialize #'custom-initialize-default
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:set (lambda (symbol value)
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(set-default symbol value)
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(unless (eq value 'color)
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(font-latex-update-sectioning-faces font-latex-sectioning-max value)))
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:group 'font-latex)
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(defun font-latex-update-sectioning-faces (&optional max height-scale)
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"Update sectioning commands faces."
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(unless height-scale
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(setq height-scale (if (numberp font-latex-fontify-sectioning)
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;; Make sure `height-scale' is a floating point
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;; number because `set-face-attribute' treats
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;; integers differently from floating points.
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(float font-latex-fontify-sectioning)
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1.1)))
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(unless max
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(setq max font-latex-sectioning-max))
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(dotimes (num max)
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(let* (;; reverse for XEmacs:
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(num (- max (1+ num)))
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(face-name (intern (format "font-latex-sectioning-%s-face" num))))
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(unless (get face-name 'saved-face) ; Do not touch customized faces.
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(set-face-attribute face-name nil :height height-scale)))))
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(defun font-latex-make-sectioning-faces (max &optional height-scale)
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"Build the faces used to fontify sectioning commands."
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(unless max (setq max font-latex-sectioning-max))
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(unless height-scale
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(setq height-scale (if (numberp font-latex-fontify-sectioning)
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;; Make sure `height-scale' is a floating point
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;; number because the integer type is treated
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;; differently.
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(float font-latex-fontify-sectioning)
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1.1)))
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(dotimes (num max)
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(let* ((num (- max (1+ num)))
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(face-name (intern (format "font-latex-sectioning-%s-face" num)))
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(f-inherit (intern (format "font-latex-sectioning-%s-face" (1+ num)))))
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(eval
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`(defface ,face-name
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'((t (:height ,height-scale :inherit ,f-inherit)))
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(format "Face for sectioning commands at level %s.
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Probably you don't want to customize this face directly. Better
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change the base face `font-latex-sectioning-5-face' or customize the
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variable `font-latex-fontify-sectioning'." ',num)
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:group 'font-latex-highlighting-faces)
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t))))
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(font-latex-make-sectioning-faces font-latex-sectioning-max)
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;;; Keywords
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(eval-and-compile
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(defconst font-latex-built-in-keyword-classes
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'(("warning"
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("nopagebreak" "pagebreak" "newpage" "clearpage" "cleardoublepage"
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"enlargethispage" "nolinebreak" "linebreak" "newline" "-" "\\" "\\*"
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"appendix" "displaybreak" "allowdisplaybreaks" "tabularnewline" "include"
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"backmatter" "frontmatter" "mainmatter"
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"makeatletter" "makeatother" "newblock" "suppressfloats" "endinput")
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font-latex-warning-face 1 noarg)
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("variable"
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(("setlength" "|{\\{") ("settowidth" "|{\\{") ("settoheight" "{{")
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("settodepth" "{{") ("setcounter" "{|{\\")
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("addtolength" "|{\\{") ("addtocounter" "{|{\\")
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("stepcounter" "{") ("refstepcounter" "{")
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("counterwithin" "*[{{") ("counterwithout" "*[{{")
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("arabic" "{") ("roman" "{") ("Roman" "{") ("alph" "{") ("Alph" "{")
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("fnsymbol" "{"))
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font-lock-variable-name-face 2 command)
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("biblatexnoarg"
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("newrefsegment" "mancite" "pno" "ppno" "nopp" "psq" "psqq")
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font-lock-variable-name-face 2 noarg)
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("biblatex"
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(;; 3.2.2 Setting Package Options
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("ExecuteBibliographyOptions" "[{")
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;; 3.7.1 Resources
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("addbibresource" "[{") ("addglobalbib" "[{") ("addsectionbib" "[{")
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;; 3.7.2 The Bibliography
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("printbibliography" "[") ("bibbysection" "[") ("bibbysegment" "[")
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("bibbycategory" "[") ("printbibheading" "[")
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;; 3.7.3 Bibliography Lists
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("printbiblist" "[{") ("printshorthands" "[")
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;; 3.7.4 Bibliography Sections
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("newrefsection" "[")
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;; 3.7.6 Bibliography Categories
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("DeclareBibliographyCategory" "{") ("addtocategory" "{{")
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;; 3.7.7 Bibliography Headings and Environments
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("defbibenvironment" "{{{{") ("defbibheading" "{[{")
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;; 3.7.8 Bibliography Notes
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("defbibnote" "{{")
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;; 3.7.9 Bibliography Filters and Checks
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("defbibfilter" "{{") ("defbibcheck" "{{")
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;; 3.7.10 Reference Contexts
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("DeclareRefcontext" "{{") ("newrefcontext" "[{")
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("assignrefcontextkeyws" "*[{") ("assignrefcontextcats" "*[{")
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("assignrefcontextentries" "*[{")
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;; 3.7.11 Dynamic Entry Sets
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("defbibentryset" "{{")
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;; 3.8.1 Standard Commands
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("Cite" "[[{")
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("parencite" "*[[{") ("Parencite" "[[{")
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("footcite" "[[{") ("footcitetext" "[[{")
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;; 3.8.2 Style-specific Commands
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("textcite" "[[{") ("Textcite" "[[{")
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|
("smartcite" "[[{") ("Smartcite" "[[{")
|
|
|
|
|
("supercite" "{")
|
|
|
|
|
;; 3.8.3 Qualified Citation Lists
|
|
|
|
|
;; For qualified lists, fontify at least 2 mandatory arguments
|
|
|
|
|
("cites" "(([[{[[{") ("Cites" "(([[{[[{")
|
|
|
|
|
("parencites" "(([[{[[{") ("Parencites" "(([[{[[{")
|
|
|
|
|
("footcites" "(([[{[[{") ("footcitetexts" "(([[{[[{")
|
|
|
|
|
("smartcites" "(([[{[[{") ("Smartcites" "(([[{[[{")
|
|
|
|
|
("textcites" "(([[{[[{") ("Textcites" "(([[{[[{")
|
|
|
|
|
("supercites" "(([[{[[{")
|
|
|
|
|
;; 3.8.4 Style-independent Commands
|
|
|
|
|
("autocite" "*[[{") ("Autocite" "*[[{")
|
|
|
|
|
("autocites" "(([[{[[{") ("Autocites" "(([[{[[{")
|
|
|
|
|
;; 3.8.5 Text Commands
|
|
|
|
|
("citeauthor" "*[[{") ("Citeauthor" "*[[{") ("citetitle" "*[[{")
|
|
|
|
|
("citeyear" "*[[{") ("citedate" "*[[{")
|
|
|
|
|
("citeurl" "[[{") ("parentext" "{")
|
|
|
|
|
("brackettext" "{")
|
|
|
|
|
;; 3.8.6 Special Commands
|
|
|
|
|
("fullcite" "[[{") ("footfullcite" "[[{")
|
|
|
|
|
("volcite" "[{[{") ("Volcite" "[{[{")
|
|
|
|
|
("volcites" "(([{[{[{[{") ("Volcites" "(([{[{[{[{")
|
|
|
|
|
("pvolcite" "[{[{") ("Pvolcite" "[{[{")
|
|
|
|
|
("pvolcites" "(([{[{[{[{") ("Pvolcites" "(([{[{[{[{")
|
|
|
|
|
("fvolcite" "[{[{") ("ftvolcite" "[{[{")
|
|
|
|
|
("fvolcites" "(([{[{[{[{") ("Fvolcites" "(([{[{[{[{")
|
|
|
|
|
("svolcite" "[{[{") ("Svolcite" "[{[{")
|
|
|
|
|
("svolcites" "(([{[{[{[{") ("Svolcites" "(([{[{[{[{")
|
|
|
|
|
("tvolcite" "[{[{") ("Tvolcite" "[{[{")
|
|
|
|
|
("tvolcites" "(([{[{[{[{") ("Tvolcites" "(([{[{[{[{")
|
|
|
|
|
("avolcite" "[{[{") ("Avolcite" "[{[{")
|
|
|
|
|
("avolcites" "(([{[{[{[{") ("Avolcites" "(([{[{[{[{")
|
|
|
|
|
("notecite" "[[{") ("Notecite" "[[{")
|
|
|
|
|
("pnotecite" "[[{") ("Pnotecite" "[[{")
|
|
|
|
|
("fnotecite" "[[{")
|
|
|
|
|
;; 3.8.7 Low-level Commands
|
|
|
|
|
("citename" "[[{[{") ("citelist" "[[{[{") ("citefield" "[[{[{")
|
|
|
|
|
;; 3.8.8 Miscellaneous Commands
|
|
|
|
|
("citereset" "*") ("RN" "{") ("Rn" "{")
|
|
|
|
|
;; 3.9 Localization Commands
|
|
|
|
|
("DefineBibliographyStrings" "{{") ("DefineBibliographyExtras" "{{")
|
|
|
|
|
("UndefineBibliographyExtras" "{{") ("DefineHyphenationExceptions" "{{")
|
|
|
|
|
("NewBibliographyString" "{"))
|
|
|
|
|
font-lock-constant-face 2 command)
|
|
|
|
|
("reference"
|
|
|
|
|
(("nocite" "*{") ("cite" "*[[{") ("label" "{") ("pageref" "{")
|
|
|
|
|
("vref" "*{") ("eqref" "{") ("ref" "{") ("Ref" "{")
|
|
|
|
|
("footref" "{") ("include" "{") ("input" "{")
|
|
|
|
|
("bibliography" "{") ("index" "{") ("glossary" "{")
|
|
|
|
|
("footnote" "[{") ("footnotemark" "[") ("footnotetext" "[{")
|
|
|
|
|
("marginpar" "[{") ("chaptermark" "{") ("sectionmark" "{")
|
|
|
|
|
("subsectionmark" "{") ("subsubsectionmark" "{")
|
|
|
|
|
("paragraphmark" "{") ("subparagraphmark" "{"))
|
|
|
|
|
font-lock-constant-face 2 command)
|
|
|
|
|
("function"
|
|
|
|
|
(("begin" "{") ("end" "{") ("pagenumbering" "{")
|
|
|
|
|
("thispagestyle" "{") ("pagestyle" "{") ("nofiles" "")
|
|
|
|
|
("includeonly" "{") ("bibliographystyle" "{") ("documentstyle" "[{")
|
|
|
|
|
("documentclass" "[{[") ("newenvironment" "*{[[{{")
|
|
|
|
|
("newcommand" "*|{\\[[{") ("newlength" "|{\\")
|
|
|
|
|
("newtheorem" "{[{[")
|
|
|
|
|
("providecommand" "*|{\\[[{")
|
|
|
|
|
("newcounter" "{[") ("renewenvironment" "*{[[{{")
|
|
|
|
|
("renewcommand" "*|{\\[[{") ("renewtheorem" "{[{[")
|
|
|
|
|
("usepackage" "[{[") ("RequirePackage" "[{[")
|
|
|
|
|
("fbox" "{") ("mbox" "{") ("rule" "[{{")
|
|
|
|
|
("framebox" "|[([{") ("makebox" "|[([{") ("newsavebox" "|{\\")
|
|
|
|
|
("parbox" "[[[{{") ("savebox" "|{\\|[([{") ("sbox" "|{\\{")
|
|
|
|
|
("usebox" "|{\\")
|
|
|
|
|
("cline" "{") ("extracolsep" "{") ("multicolumn" "{{{")
|
|
|
|
|
("linethickness" "{") ("multiput" "(({{") ("put" "({")
|
|
|
|
|
("qbezier" "[(((") ("raisebox" "{[[{")
|
|
|
|
|
("addvspace" "{") ("vspace" "*{") ("hspace" "*{")
|
|
|
|
|
("addcontentsline" "{{{") ("addtocontents" "{{")
|
2022-11-08 03:31:08 +00:00
|
|
|
("labelformat" "{{") ("linespread" "{")
|
2022-08-25 17:42:37 +00:00
|
|
|
("AddToHook" "{[{") ("RemoveFromHook" "{[") ("AddToHookNext" "{{")
|
|
|
|
|
("ProvidesClass" "{[") ("ProvidesPackage" "{[") ("ProvidesFile" "{[")
|
2023-07-27 19:52:58 +00:00
|
|
|
("NewMarkClass" "{"))
|
2022-08-25 17:42:37 +00:00
|
|
|
font-lock-function-name-face 2 command)
|
2023-07-27 19:52:58 +00:00
|
|
|
("function-noarg"
|
|
|
|
|
("enspace" "enskip" "quad" "qquad" "nonumber"
|
|
|
|
|
"bigskip" "medskip" "smallskip"
|
|
|
|
|
"thinspace" "negthinspace"
|
|
|
|
|
"thicklines" "thinlines"
|
|
|
|
|
"noindent" "hline" "ldots"
|
|
|
|
|
"centering" "raggedright" "raggedleft"
|
|
|
|
|
"raggedbottom" "flushbottom"
|
|
|
|
|
"TeX" "LaTeX" "LaTeXe"
|
|
|
|
|
"normalfont" "normalshape"
|
|
|
|
|
"tableofcontents" "listoffigures" "listoftables"
|
|
|
|
|
"maketitle" "makeindex" "makeglossary"
|
|
|
|
|
"sloppy" "fussy")
|
|
|
|
|
font-lock-keyword-face 2 noarg)
|
2022-08-25 17:42:37 +00:00
|
|
|
("sectioning-0"
|
|
|
|
|
(("part" "*[{"))
|
|
|
|
|
(if (eq font-latex-fontify-sectioning 'color)
|
|
|
|
|
'font-lock-type-face
|
|
|
|
|
'font-latex-sectioning-0-face)
|
|
|
|
|
2 command)
|
|
|
|
|
("sectioning-1"
|
|
|
|
|
(("chapter" "*[{"))
|
|
|
|
|
(if (eq font-latex-fontify-sectioning 'color)
|
|
|
|
|
'font-lock-type-face
|
|
|
|
|
'font-latex-sectioning-1-face)
|
|
|
|
|
2 command)
|
|
|
|
|
("sectioning-2"
|
|
|
|
|
(("section" "*[{"))
|
|
|
|
|
(if (eq font-latex-fontify-sectioning 'color)
|
|
|
|
|
'font-lock-type-face
|
|
|
|
|
'font-latex-sectioning-2-face)
|
|
|
|
|
2 command)
|
|
|
|
|
("sectioning-3"
|
|
|
|
|
(("subsection" "*[{"))
|
|
|
|
|
(if (eq font-latex-fontify-sectioning 'color)
|
|
|
|
|
'font-lock-type-face
|
|
|
|
|
'font-latex-sectioning-3-face)
|
|
|
|
|
2 command)
|
|
|
|
|
("sectioning-4"
|
|
|
|
|
(("subsubsection" "*[{"))
|
|
|
|
|
(if (eq font-latex-fontify-sectioning 'color)
|
|
|
|
|
'font-lock-type-face
|
|
|
|
|
'font-latex-sectioning-4-face)
|
|
|
|
|
2 command)
|
|
|
|
|
("sectioning-5"
|
|
|
|
|
(("paragraph" "*[{") ("subparagraph" "*[{")
|
|
|
|
|
("subsubparagraph" "*[{"))
|
|
|
|
|
(if (eq font-latex-fontify-sectioning 'color)
|
|
|
|
|
'font-lock-type-face
|
|
|
|
|
'font-latex-sectioning-5-face)
|
|
|
|
|
2 command)
|
|
|
|
|
("slide-title" () font-latex-slide-title-face 2 command)
|
|
|
|
|
("textual"
|
|
|
|
|
(("item" "[") ("bibitem" "[{") ("title" "{") ("author" "{") ("date" "{")
|
|
|
|
|
("thanks" "{") ("address" "{") ("caption" "[{")
|
|
|
|
|
("textsuperscript" "{") ("textsubscript" "{") ("verb" "*"))
|
|
|
|
|
font-lock-type-face 2 command)
|
|
|
|
|
("bold-command"
|
|
|
|
|
(("textbf" "{") ("textsc" "{") ("textssc" "{") ("textulc" "{")
|
|
|
|
|
("textup" "{") ("textsw" "{") ("boldsymbol" "{") ("pmb" "{")
|
|
|
|
|
("mathbf" "{"))
|
|
|
|
|
font-latex-bold-face 1 command)
|
|
|
|
|
("italic-command"
|
|
|
|
|
(("emph" "{") ("textit" "{") ("textsl" "{") ("mathit" "{"))
|
|
|
|
|
font-latex-italic-face 1 command)
|
2022-11-08 03:31:08 +00:00
|
|
|
("underline-command"
|
|
|
|
|
(("underline" "{"))
|
|
|
|
|
font-latex-underline-face 1 command)
|
2022-08-25 17:42:37 +00:00
|
|
|
("math-command"
|
|
|
|
|
(("ensuremath" "|{\\"))
|
|
|
|
|
font-latex-math-face 1 command)
|
|
|
|
|
("type-command"
|
|
|
|
|
(("texttt" "{") ("textsf" "{") ("textrm" "{") ("textmd" "{")
|
|
|
|
|
("textnormal" "{") ("oldstylenums" "{") ("legacyoldstylenums" "{")
|
|
|
|
|
("mathrm" "{") ("mathsf" "{") ("mathtt" "{"))
|
|
|
|
|
font-lock-type-face 1 command)
|
|
|
|
|
("bold-declaration"
|
|
|
|
|
("bf" "bfseries" "sc" "scshape" "sscshape" "ulcshape" "upshape" "swshape")
|
|
|
|
|
font-latex-bold-face 1 declaration)
|
|
|
|
|
("italic-declaration"
|
|
|
|
|
("em" "it" "itshape" "sl" "slshape")
|
|
|
|
|
font-latex-italic-face 1 declaration)
|
|
|
|
|
("type-declaration"
|
|
|
|
|
("tt" "ttfamily" "sf" "sffamily" "rm" "rmfamily" "mdseries"
|
|
|
|
|
"tiny" "scriptsize" "footnotesize" "small" "normalsize"
|
|
|
|
|
"large" "Large" "LARGE" "huge" "Huge")
|
|
|
|
|
font-lock-type-face 1 declaration))
|
|
|
|
|
"Built-in keywords and specifications for font locking.
|
|
|
|
|
|
|
|
|
|
The first element of each item is the name of the keyword class.
|
|
|
|
|
|
|
|
|
|
The second element is a list of keywords (macros without an
|
|
|
|
|
escape character) to highlight or, if the fifth element is the
|
|
|
|
|
symbol `command', a list of lists where the first element of each
|
|
|
|
|
item is a keyword and the second a string specifying the macro
|
|
|
|
|
syntax. It can contain \"*\" if the macro has a starred variant,
|
|
|
|
|
\"[\" for an optional argument, \"{\" for a mandatory argument,
|
|
|
|
|
and \"\\\" for a macro. A \"|\" means the following two tokens
|
|
|
|
|
should be regarded as alternatives.
|
|
|
|
|
|
|
|
|
|
The third element is the symbol of a face to be used or a Lisp
|
|
|
|
|
form returning a face symbol.
|
|
|
|
|
|
|
|
|
|
The fourth element is the fontification level.
|
|
|
|
|
|
|
|
|
|
The fifth element is the type of construct to be matched. It can
|
|
|
|
|
be one of `noarg' which will match simple macros without
|
|
|
|
|
arguments (like \"\\foo\"), `declaration' which will match macros
|
|
|
|
|
inside a TeX group (like \"{\\bfseries foo}\"), or `command' which
|
|
|
|
|
will match macros of the form \"\\foo[bar]{baz}\"."))
|
|
|
|
|
|
|
|
|
|
(defcustom font-latex-deactivated-keyword-classes nil
|
|
|
|
|
"List of strings for built-in keyword classes to be deactivated.
|
|
|
|
|
|
|
|
|
|
Valid entries are \"warning\", \"variable\", \"biblatexnoarg\",
|
2023-07-27 19:52:58 +00:00
|
|
|
\"biblatex\", \"reference\", \"function\", \"function-noarg\",
|
|
|
|
|
\"sectioning-0\", \"sectioning-1\", \"sectioning-2\",
|
|
|
|
|
\"sectioning-3\", \"sectioning-4\", \"sectioning-5\",
|
|
|
|
|
\"slide-title\", \"textual\", \"bold-command\",
|
|
|
|
|
\"italic-command\", \"underline-command\", \"math-command\",
|
|
|
|
|
\"type-command\", \"bold-declaration\", \"italic-declaration\" or
|
|
|
|
|
\"type-declaration\".
|
2022-08-25 17:42:37 +00:00
|
|
|
|
|
|
|
|
You have to restart Emacs for a change of this variable to take effect."
|
|
|
|
|
:group 'font-latex-keywords
|
|
|
|
|
:type `(set ,@(mapcar
|
|
|
|
|
(lambda (spec)
|
|
|
|
|
`(const :tag ,(concat
|
|
|
|
|
;; Name of the keyword class
|
|
|
|
|
(let ((name (split-string (car spec) "-")))
|
|
|
|
|
(setcar name (capitalize (car name)))
|
|
|
|
|
(mapconcat #'identity name " "))
|
|
|
|
|
" keywords in `"
|
|
|
|
|
;; Name of the face
|
|
|
|
|
(symbol-name
|
|
|
|
|
(let ((face (nth 2 spec)))
|
|
|
|
|
(if (symbolp face) face (eval face t))))
|
|
|
|
|
"'.\n"
|
|
|
|
|
;; List of keywords
|
|
|
|
|
(with-temp-buffer
|
|
|
|
|
(insert " Keywords: "
|
|
|
|
|
(mapconcat (lambda (x)
|
|
|
|
|
(if (listp x)
|
|
|
|
|
(car x)
|
|
|
|
|
x))
|
|
|
|
|
(nth 1 spec) ", "))
|
|
|
|
|
(fill-paragraph nil)
|
|
|
|
|
(buffer-string)))
|
|
|
|
|
,(car spec)))
|
|
|
|
|
font-latex-built-in-keyword-classes)))
|
|
|
|
|
|
|
|
|
|
(eval-and-compile
|
|
|
|
|
(defun font-latex--make-match-defun (prefix name face type)
|
|
|
|
|
"Return a function definition for keyword matching.
|
|
|
|
|
The variable holding the keywords to match are determined by the
|
|
|
|
|
strings PREFIX and NAME. The type of matcher is determined by
|
|
|
|
|
the symbol TYPE.
|
|
|
|
|
|
|
|
|
|
This is a helper function for `font-latex-make-built-in-keywords'
|
|
|
|
|
and `font-latex-make-user-keywords' and not intended for general
|
|
|
|
|
use."
|
|
|
|
|
;; FIXME: Is the cond-clause possible inside of the defun?
|
|
|
|
|
|
|
|
|
|
;; In an earlier version of font-latex the type could be a list like
|
|
|
|
|
;; (command 1). This indicated a macro with one argument. Provide
|
|
|
|
|
;; a match function in this case but don't actually support it.
|
|
|
|
|
(cond ((or (eq type 'command) (listp type))
|
|
|
|
|
`(defun ,(intern (concat prefix name)) (limit)
|
|
|
|
|
,(concat "Fontify `" prefix name "' up to LIMIT.
|
|
|
|
|
|
|
|
|
|
Generated by `font-latex--make-match-defun'.")
|
|
|
|
|
(when ,(intern (concat prefix name))
|
|
|
|
|
(font-latex-match-command-with-arguments
|
|
|
|
|
,(intern (concat prefix name))
|
|
|
|
|
(append
|
|
|
|
|
(when (boundp ',(intern (concat prefix name
|
|
|
|
|
"-keywords-local")))
|
|
|
|
|
,(intern (concat prefix name "-keywords-local")))
|
|
|
|
|
,(intern (concat prefix name "-keywords")))
|
|
|
|
|
;; `face' can be a face symbol, a form returning
|
|
|
|
|
;; a face symbol, or a list of face attributes.
|
|
|
|
|
,(if (and (listp face) (fboundp (car face)))
|
|
|
|
|
face
|
|
|
|
|
`',face)
|
|
|
|
|
limit))))
|
|
|
|
|
((eq type 'declaration)
|
|
|
|
|
`(defun ,(intern (concat prefix name)) (limit)
|
|
|
|
|
,(concat "Fontify `" prefix name "' up to LIMIT.
|
|
|
|
|
|
|
|
|
|
Generated by `font-latex--make-match-defun'.")
|
|
|
|
|
(when ,(intern (concat prefix name))
|
|
|
|
|
(font-latex-match-command-in-braces
|
|
|
|
|
,(intern (concat prefix name)) limit))))
|
|
|
|
|
((eq type 'noarg)
|
|
|
|
|
`(defun ,(intern (concat prefix name)) (limit)
|
|
|
|
|
,(concat "Fontify `" prefix name "' up to LIMIT.
|
|
|
|
|
|
|
|
|
|
Generated by `font-latex--make-match-defun'.")
|
|
|
|
|
(when ,(intern (concat prefix name))
|
|
|
|
|
(re-search-forward
|
|
|
|
|
,(intern (concat prefix name)) limit t))))))
|
|
|
|
|
|
|
|
|
|
(defun font-latex-keyword-matcher (prefix name face type)
|
|
|
|
|
"Return a matcher and highlighter as required by `font-lock-keywords'.
|
|
|
|
|
PREFIX and NAME are strings which are concatenated to form the
|
|
|
|
|
respective match function. FACE is a face name or a list of face
|
|
|
|
|
attributes that will be applied to the respective part of the
|
|
|
|
|
match returned by the match function. A lisp form returning a
|
|
|
|
|
face name or a list of face attributes is also valid for FACE.
|
|
|
|
|
TYPE is the type of construct to be highlighted. Currently the
|
|
|
|
|
symbols `command', `declaration' and `noarg' are valid.
|
|
|
|
|
|
|
|
|
|
This is a helper function for `font-latex-make-built-in-keywords'
|
|
|
|
|
and `font-latex-make-user-keywords' and not intended for general
|
|
|
|
|
use."
|
|
|
|
|
;; Quote a list of face attributes and a face symbol
|
|
|
|
|
;; but do not quote a form returning such value.
|
|
|
|
|
(unless (and (listp face) (fboundp (car face)))
|
|
|
|
|
(setq face `',face))
|
|
|
|
|
|
|
|
|
|
;; In an earlier version of font-latex the type could be a list like
|
|
|
|
|
;; (command 1). This indicated a macro with one argument. Provide
|
|
|
|
|
;; a matcher in this case but don't actually support it.
|
|
|
|
|
(cond ((or (eq type 'command) (listp type))
|
|
|
|
|
`(,(intern (concat prefix name))
|
|
|
|
|
(0 (font-latex-matched-face 0) append t)
|
|
|
|
|
(1 (font-latex-matched-face 1) append t)
|
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|
|
|
(2 (font-latex-matched-face 2) append t)
|
|
|
|
|
(3 (font-latex-matched-face 3) append t)
|
|
|
|
|
(4 (font-latex-matched-face 4) append t)
|
|
|
|
|
(5 (font-latex-matched-face 5) append t)
|
|
|
|
|
(6 (font-latex-matched-face 6) append t)
|
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|
|
|
(7 (font-latex-matched-face 7) append t)
|
|
|
|
|
(8 (font-latex-matched-face 8) append t)
|
|
|
|
|
(9 (font-latex-matched-face 9) append t)
|
|
|
|
|
(10 (font-latex-matched-face 10) append t)
|
|
|
|
|
(11 (font-latex-matched-face 11) append t)))
|
|
|
|
|
((eq type 'noarg)
|
|
|
|
|
`(,(intern (concat prefix name))
|
|
|
|
|
(0 ,face)))
|
|
|
|
|
((eq type 'declaration)
|
|
|
|
|
`(,(intern (concat prefix name))
|
|
|
|
|
(0 'font-latex-warning-face t t)
|
|
|
|
|
(1 'font-lock-keyword-face append t)
|
|
|
|
|
(2 ,face append t))))))
|
|
|
|
|
|
|
|
|
|
(defmacro font-latex-make-built-in-keywords ()
|
|
|
|
|
"Build defuns, defvars and defcustoms for built-in keyword fontification."
|
|
|
|
|
(let ((flks '())
|
|
|
|
|
(defs '()))
|
|
|
|
|
(dolist (item font-latex-built-in-keyword-classes)
|
|
|
|
|
(let ((prefix "font-latex-match-")
|
|
|
|
|
(name (nth 0 item))
|
|
|
|
|
(keywords (nth 1 item))
|
|
|
|
|
(face (nth 2 item))
|
|
|
|
|
(level (nth 3 item))
|
|
|
|
|
(type (nth 4 item)))
|
|
|
|
|
|
|
|
|
|
;; defvar font-latex-match-*-keywords-local
|
|
|
|
|
(push `(defvar-local ,(intern (concat prefix name "-keywords-local"))
|
|
|
|
|
',keywords
|
|
|
|
|
,(concat "Buffer-local keywords to add to `"
|
|
|
|
|
prefix name "-keywords'.\n\n"
|
|
|
|
|
(if (eq type 'command)
|
|
|
|
|
"\
|
|
|
|
|
This must be a list where each element is a list consisting of a
|
2023-07-27 19:52:58 +00:00
|
|
|
keyword string (not a regular expression) omitting the leading
|
2022-08-25 17:42:37 +00:00
|
|
|
backslash and a format specifier as described in the doc string of
|
|
|
|
|
`font-latex-user-keyword-classes'."
|
|
|
|
|
"\
|
2023-07-27 19:52:58 +00:00
|
|
|
This must be a list where each element is a keyword string (not a
|
|
|
|
|
regular expression) omitting the leading backslash.")
|
2022-08-25 17:42:37 +00:00
|
|
|
|
|
|
|
|
"\n\n\
|
|
|
|
|
This is an internal variable which should not be set directly.
|
|
|
|
|
Use `font-latex-add-keywords' instead.
|
|
|
|
|
|
|
|
|
|
Generated by `font-latex-make-built-in-keywords'."))
|
|
|
|
|
defs)
|
|
|
|
|
|
|
|
|
|
;; defvar font-latex-match-*
|
|
|
|
|
;; We make this variable buffer local later, but don't use
|
|
|
|
|
;; `defvar-local' here because it shouldn't have nil as its
|
2022-11-08 03:31:08 +00:00
|
|
|
;; default value. Its true default value is set through
|
|
|
|
|
;; font-latex-match-*-make in :set specification of defcustom of
|
|
|
|
|
;; font-latex-match-*-keywords below. It's only after that this
|
|
|
|
|
;; variable can be buffer local.
|
2022-08-25 17:42:37 +00:00
|
|
|
(push `(defvar ,(intern (concat prefix name)) nil
|
|
|
|
|
,(concat "Regular expression to match " name
|
|
|
|
|
" keywords.
|
|
|
|
|
|
|
|
|
|
Generated by `font-latex-make-built-in-keywords'"))
|
|
|
|
|
defs)
|
|
|
|
|
|
|
|
|
|
;; This defvar (without value) is here just to suppress compiler
|
|
|
|
|
;; warnings. Its true definition is done by defcustom following
|
|
|
|
|
;; the next defun because its :set function depends on the
|
|
|
|
|
;; function defined by that defun.
|
|
|
|
|
(push `(defvar ,(intern (concat prefix name "-keywords")))
|
|
|
|
|
defs)
|
|
|
|
|
|
|
|
|
|
;; defun font-latex-match-*-make
|
|
|
|
|
(push `(defun ,(intern (concat prefix name "-make")) ()
|
|
|
|
|
,(concat "Make or remake the variable `" prefix name "'.
|
|
|
|
|
|
|
|
|
|
Generated by `font-latex-make-built-in-keywords'.")
|
|
|
|
|
(let ((keywords
|
|
|
|
|
(append
|
|
|
|
|
(unless (member ,name
|
|
|
|
|
font-latex-deactivated-keyword-classes)
|
|
|
|
|
,(intern (concat prefix name "-keywords-local")))
|
|
|
|
|
,(intern (concat prefix name "-keywords"))))
|
|
|
|
|
multi-char-macros single-char-macros)
|
|
|
|
|
(dolist (elt keywords)
|
|
|
|
|
(let ((keyword (if (listp elt) (car elt) elt)))
|
|
|
|
|
(if (string-match "^[A-Za-z]" keyword)
|
|
|
|
|
(push keyword multi-char-macros)
|
|
|
|
|
(push keyword single-char-macros))))
|
|
|
|
|
(when (or multi-char-macros single-char-macros)
|
|
|
|
|
(setq ,(intern (concat prefix name))
|
|
|
|
|
(concat
|
|
|
|
|
"\\\\\\("
|
|
|
|
|
(when multi-char-macros
|
|
|
|
|
(concat
|
|
|
|
|
"\\(?:" (regexp-opt multi-char-macros) "\\)\\>"))
|
|
|
|
|
(when single-char-macros
|
|
|
|
|
(concat
|
|
|
|
|
(when multi-char-macros "\\|")
|
|
|
|
|
"\\(?:" (regexp-opt single-char-macros) "\\)"))
|
|
|
|
|
"\\)")))))
|
|
|
|
|
defs)
|
|
|
|
|
|
|
|
|
|
;; defcustom font-latex-match-*-keywords
|
|
|
|
|
(push `(defcustom ,(intern (concat prefix name "-keywords")) nil
|
|
|
|
|
,(concat "List of keywords "
|
|
|
|
|
(when (eq type 'command) "and formats ")
|
|
|
|
|
"for " name " face.\n"
|
|
|
|
|
(if (eq type 'command)
|
|
|
|
|
"\
|
|
|
|
|
Each element has to be a list consisting of the name of a macro
|
|
|
|
|
omitting the leading backslash and a format specifier as
|
|
|
|
|
described in the doc string of `font-latex-user-keyword-classes'."
|
|
|
|
|
"\
|
|
|
|
|
Each element has to be the name of a macro as a string, omitting
|
|
|
|
|
the leading backslash.")
|
|
|
|
|
"\n\n\
|
|
|
|
|
Setting this variable directly does not take effect; restart
|
|
|
|
|
Emacs.
|
|
|
|
|
|
|
|
|
|
Generated by `font-latex-make-built-in-keywords'.")
|
|
|
|
|
:type '(repeat ,(if (eq type 'command)
|
|
|
|
|
'(list (string :tag "Keyword")
|
|
|
|
|
(string :tag "Format"))
|
|
|
|
|
'(string :tag "Keyword")))
|
|
|
|
|
:set (lambda (symbol value)
|
|
|
|
|
(set-default symbol value)
|
|
|
|
|
(funcall ',(intern (concat prefix name "-make"))))
|
|
|
|
|
:group 'font-latex-keywords)
|
|
|
|
|
defs)
|
|
|
|
|
|
|
|
|
|
;; Now that font-latex-match-* has attained proper default
|
|
|
|
|
;; value, make it buffer local.
|
|
|
|
|
(push `(make-variable-buffer-local ',(intern (concat prefix name)))
|
|
|
|
|
defs)
|
|
|
|
|
|
|
|
|
|
;; defun font-latex-match-*
|
|
|
|
|
(push (font-latex--make-match-defun prefix name face type) defs)
|
|
|
|
|
|
|
|
|
|
;; Add matchers and highlighters to `font-latex-keywords-{1,2}'.
|
|
|
|
|
(let ((keywords-entry (font-latex-keyword-matcher
|
|
|
|
|
prefix name face type)))
|
|
|
|
|
(push (cons level keywords-entry) flks))))
|
|
|
|
|
`(progn
|
|
|
|
|
,@(nreverse defs)
|
|
|
|
|
(defvar font-latex-keywords-1
|
|
|
|
|
',(nreverse (delq nil (mapcar (lambda (x) (if (eq 1 (car x)) (cdr x)))
|
|
|
|
|
flks)))
|
|
|
|
|
"Subdued level highlighting for LaTeX modes.")
|
|
|
|
|
(defvar font-latex-keywords-2
|
|
|
|
|
',(nreverse (mapcar #'cdr flks))
|
|
|
|
|
"High level highlighting for LaTeX modes."))))
|
|
|
|
|
|
|
|
|
|
(font-latex-make-built-in-keywords)
|
|
|
|
|
|
|
|
|
|
(defcustom font-latex-user-keyword-classes nil
|
|
|
|
|
"List of user-defined keyword classes for font locking.
|
|
|
|
|
|
|
|
|
|
Every keyword class consists of four parts, a name, a list of
|
|
|
|
|
keywords, a face and a specifier for the type of macro to be
|
|
|
|
|
highlighted.
|
|
|
|
|
|
|
|
|
|
When adding new entries, you have to use unique values for the
|
|
|
|
|
class names, that is, they must not clash with names of the
|
|
|
|
|
built-in keyword classes or other names given by you.
|
|
|
|
|
Additionally the names must not contain spaces.
|
|
|
|
|
|
|
|
|
|
The list of keywords defines which commands and declarations
|
|
|
|
|
should be covered by the keyword class. A keyword can either be
|
|
|
|
|
a simple command name omitting the leading backslash or a list
|
|
|
|
|
consisting of the command name and a string specifying the syntax
|
|
|
|
|
of the command. The latter is useful if you want to match LaTeX
|
|
|
|
|
macros with arguments (see below). You can specify the occurence
|
|
|
|
|
and order of optional (\"[\") and mandatory (\"{\") arguments for
|
|
|
|
|
each keyword. For example for \"documentclass\" you'd use \"[{\"
|
|
|
|
|
because the macro has one optional followed by one mandatory
|
|
|
|
|
argument. Optionally starred macros can be indicated with \"*\".
|
|
|
|
|
In case an argument is an unbraced macro, use \"\\\". You can
|
|
|
|
|
also specify two alternative arguments by prefixing them with
|
|
|
|
|
\"|\". As an example, the specifier for \\newcommand is
|
|
|
|
|
\"*|{\\=\\[[{\".
|
|
|
|
|
|
|
|
|
|
The face argument can either be an existing face or a face
|
|
|
|
|
attribute.
|
|
|
|
|
|
|
|
|
|
There are three alternatives for the class type:
|
|
|
|
|
|
|
|
|
|
A value of `command' indicates commands with arguments
|
|
|
|
|
\(\"\\foo[bar]{baz}\"). The mandatory arguments in curly braces
|
|
|
|
|
will get the face you specified.
|
|
|
|
|
|
|
|
|
|
A value of `declaration' indicates declarations inside of TeX
|
|
|
|
|
groups (\"{\\foo bar}\"). The content inside the braces,
|
|
|
|
|
excluding the command, will get the face you specified. In case
|
|
|
|
|
the braces are missing, the face will be applied to the command
|
|
|
|
|
itself.
|
|
|
|
|
|
|
|
|
|
A value of `noarg' indicates commands without arguments
|
|
|
|
|
\(\"\\foo\"). The command itself will get the face you
|
|
|
|
|
specified.
|
|
|
|
|
|
|
|
|
|
Setting this variable directly does not take effect;
|
|
|
|
|
restart Emacs."
|
|
|
|
|
:group 'font-latex-keywords
|
|
|
|
|
:type '(repeat (list (string :tag "Name")
|
|
|
|
|
(choice (repeat :tag "Keywords" (string :tag "Keyword"))
|
|
|
|
|
(repeat
|
|
|
|
|
:tag "Keywords with specs"
|
|
|
|
|
(group (string :tag "Keyword")
|
|
|
|
|
(string :tag "Format specifier"))))
|
|
|
|
|
(choice (face :tag "Face name")
|
|
|
|
|
(custom-face-edit :tag "Face attributes"))
|
|
|
|
|
(choice :tag "Type"
|
|
|
|
|
;; Maps to
|
|
|
|
|
;;`font-latex-match-command-with-arguments'
|
|
|
|
|
(const :tag "Command with arguments"
|
|
|
|
|
command)
|
|
|
|
|
;; Maps to
|
|
|
|
|
;;`font-latex-match-command-in-braces'
|
|
|
|
|
(const :tag "Declaration inside TeX group"
|
|
|
|
|
declaration)
|
|
|
|
|
;; Maps to `re-search-forward'
|
|
|
|
|
(const :tag "Command without arguments"
|
|
|
|
|
noarg))))
|
|
|
|
|
:set (lambda (symbol value)
|
|
|
|
|
(dolist (item value)
|
|
|
|
|
(when (string-match " " (car item))
|
|
|
|
|
(error "No spaces allowed in name")))
|
|
|
|
|
(let (names names-uniq)
|
|
|
|
|
(dolist (item (append font-latex-built-in-keyword-classes value))
|
|
|
|
|
(setq names (append names (list (car item)))))
|
|
|
|
|
(setq names (TeX-sort-strings names))
|
|
|
|
|
(setq names-uniq (TeX-delete-duplicate-strings names))
|
|
|
|
|
(dotimes (i (safe-length names-uniq))
|
|
|
|
|
(unless (string= (nth i names) (nth i names-uniq))
|
|
|
|
|
(error "Name %S already exists" (nth i names)))))
|
|
|
|
|
(set-default symbol value)
|
|
|
|
|
(let ((prefix "font-latex-match-"))
|
|
|
|
|
(dolist (elt value)
|
|
|
|
|
(unless (boundp (intern (concat prefix (car elt))))
|
|
|
|
|
;; defvar font-latex-match-*
|
|
|
|
|
(eval `(defvar ,(intern (concat prefix (car elt))) nil
|
|
|
|
|
,(concat "Regular expression to match " (car elt)
|
|
|
|
|
" keywords.
|
|
|
|
|
|
|
|
|
|
Generated by `font-latex-user-keyword-classes'"))))
|
|
|
|
|
(let ((keywords (nth 1 elt))
|
|
|
|
|
single-char-macro-flag)
|
|
|
|
|
(setq keywords (if (listp (car keywords))
|
|
|
|
|
(mapcar #'car keywords)
|
|
|
|
|
keywords))
|
|
|
|
|
(catch 'single-char
|
|
|
|
|
(dolist (keyword keywords)
|
|
|
|
|
(unless (string-match "^[A-Za-z]" keyword)
|
|
|
|
|
(setq single-char-macro-flag t)
|
|
|
|
|
(throw 'single-char nil))))
|
|
|
|
|
(set (intern (concat prefix (car elt)))
|
|
|
|
|
(when (> (safe-length keywords) 0)
|
|
|
|
|
(concat "\\\\" (let ((max-specpdl-size 1000))
|
|
|
|
|
(regexp-opt keywords t))
|
|
|
|
|
(unless single-char-macro-flag "\\>")))))))))
|
|
|
|
|
|
|
|
|
|
(defun font-latex-make-user-keywords ()
|
|
|
|
|
"Build defuns and defvars for user keyword fontification."
|
|
|
|
|
(let ((keyword-specs font-latex-user-keyword-classes))
|
|
|
|
|
(dolist (item keyword-specs)
|
|
|
|
|
(let ((prefix "font-latex-match-")
|
|
|
|
|
(name (nth 0 item))
|
|
|
|
|
(keywords (nth 1 item))
|
|
|
|
|
(face (nth 2 item))
|
|
|
|
|
(type (nth 3 item)))
|
|
|
|
|
|
|
|
|
|
;; defvar font-latex-match-*-keywords
|
|
|
|
|
(eval `(defvar ,(intern (concat prefix name "-keywords")) ',keywords
|
|
|
|
|
,(concat "Font-latex keywords for " name " face.
|
|
|
|
|
|
|
|
|
|
Generated by `font-latex-make-user-keywords'.")))
|
|
|
|
|
|
|
|
|
|
;; defun font-latex-match-*
|
|
|
|
|
(eval (font-latex--make-match-defun prefix name face type) t)
|
|
|
|
|
|
|
|
|
|
;; Add the matcher to `font-latex-keywords-2'.
|
|
|
|
|
(add-to-list 'font-latex-keywords-2
|
|
|
|
|
(font-latex-keyword-matcher prefix name face type) t))))
|
|
|
|
|
|
|
|
|
|
;; Add the "fixed" matchers and highlighters.
|
|
|
|
|
(dolist (item
|
|
|
|
|
'(("\\(^\\|[^\\]\\)\\(&+\\)" 2 'font-latex-warning-face)
|
|
|
|
|
(font-latex-match-dollar-math 0 'font-latex-math-face keep)
|
|
|
|
|
(font-latex-match-quotation
|
|
|
|
|
(0 'font-latex-string-face append)
|
|
|
|
|
(1 'font-latex-warning-face))
|
|
|
|
|
;; Hack to remove the verbatim face from the \ in
|
|
|
|
|
;; \end{verbatim} and similar. The same hack is used in
|
|
|
|
|
;; tex-mode.el.
|
|
|
|
|
("\\(\\\\\\)end"
|
|
|
|
|
(1 (get-text-property (match-end 1) 'face) t))))
|
|
|
|
|
(add-to-list 'font-latex-keywords-1 item)
|
|
|
|
|
(add-to-list 'font-latex-keywords-2 item))
|
|
|
|
|
(dolist (item
|
|
|
|
|
'((font-latex-match-math-env
|
|
|
|
|
(0 'font-latex-warning-face t t)
|
|
|
|
|
(1 'font-latex-math-face append t))
|
|
|
|
|
(font-latex-match-math-envII
|
|
|
|
|
(1 'font-latex-math-face append t))
|
|
|
|
|
(font-latex-match-simple-command
|
|
|
|
|
(0 'font-latex-sedate-face append))
|
|
|
|
|
(font-latex-match-script
|
|
|
|
|
(1 (font-latex-script (match-beginning 0)) append))
|
|
|
|
|
(font-latex-match-script-chars
|
|
|
|
|
(1 (font-latex-script-char (match-beginning 1)) prepend))))
|
|
|
|
|
(add-to-list 'font-latex-keywords-2 item t)))
|
|
|
|
|
(font-latex-make-user-keywords)
|
|
|
|
|
|
|
|
|
|
(defun font-latex-add-keywords (keywords class)
|
|
|
|
|
"Add KEYWORDS to CLASS.
|
|
|
|
|
KEYWORDS is a list of keywords or keywords with syntax specs.
|
|
|
|
|
CLASS corresponds to a keyword class and can be one of the
|
|
|
|
|
symbols `warning', `variable', `reference', `biblatexnoarg',
|
2023-07-27 19:52:58 +00:00
|
|
|
`biblatex', `function', `function-noarg', `sectioning-1',
|
2022-08-25 17:42:37 +00:00
|
|
|
`sectioning-2', `sectioning-3', `sectioning-4', `sectioning-5',
|
|
|
|
|
`slide-title', `textual', `bold-command', `italic-command',
|
2022-11-08 03:31:08 +00:00
|
|
|
`underline-command', `math-command', `type-command',
|
|
|
|
|
`bold-declaration', `italic-declaration' or `type-declaration'.
|
2022-08-25 17:42:37 +00:00
|
|
|
|
|
|
|
|
The keywords will be added to the buffer-local list of keywords
|
|
|
|
|
of the respective keyword class and necessary updates of the font
|
|
|
|
|
locking machinery will be triggered."
|
|
|
|
|
(let* ((class (symbol-name class))
|
|
|
|
|
(list (intern (format "font-latex-match-%s-keywords-local" class))))
|
|
|
|
|
(dolist (elt keywords)
|
|
|
|
|
(add-to-list list elt))
|
|
|
|
|
(funcall (intern (format "font-latex-match-%s-make" class)))
|
|
|
|
|
;; Trigger refontification.
|
|
|
|
|
(when (fboundp 'font-lock-flush)
|
|
|
|
|
(font-lock-flush))))
|
|
|
|
|
|
|
|
|
|
(defvar font-latex-keywords font-latex-keywords-1
|
|
|
|
|
"Default expressions to highlight in TeX mode.")
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
;;; Subscript and superscript
|
|
|
|
|
|
|
|
|
|
(defcustom font-latex-fontify-script t
|
|
|
|
|
"If non-nil, fontify subscript and superscript strings.
|
|
|
|
|
|
|
|
|
|
By default, super/subscripts are raised/lowered if this variable
|
|
|
|
|
is non-nil. This fontification only affects one level of
|
|
|
|
|
scripts, for example in x^{y^z}, the y and the z have the same
|
|
|
|
|
size and are equally raised over x.
|
|
|
|
|
|
|
|
|
|
If this variable is set to the symbol `multi-level', then y is
|
|
|
|
|
raised above x, and z is raised above y. With many script
|
|
|
|
|
levels, the text might become too small to be readable, thus
|
|
|
|
|
there is the option `font-latex-fontify-script-max-level'. (The
|
|
|
|
|
factors for text shrinking are defined in the faces
|
|
|
|
|
`font-latex-superscript-face' and `font-latex-subscript-face' and
|
|
|
|
|
the raise/lower factor in `font-latex-script-display'.)
|
|
|
|
|
|
|
|
|
|
If this variable is set to the symbol `invisible', then the
|
|
|
|
|
effect is essentially like `multi-level' but additionally the
|
|
|
|
|
script operators ^ and _ are not displayed."
|
|
|
|
|
:type '(choice (boolean :tag "Enabled")
|
|
|
|
|
(const :tag "Multiple levels" multi-level)
|
|
|
|
|
(const :tag "Hide ^ and _" invisible))
|
|
|
|
|
:group 'font-latex)
|
|
|
|
|
(put 'font-latex-fontify-script 'safe-local-variable
|
|
|
|
|
(lambda (val)
|
|
|
|
|
(or (booleanp val)
|
|
|
|
|
(memq val '(multi-level invisible)))))
|
|
|
|
|
|
|
|
|
|
(defcustom font-latex-fontify-script-max-level 3
|
|
|
|
|
"Maximum scriptification level for which script faces are applied.
|
|
|
|
|
The faces `font-latex-superscript-face' and
|
|
|
|
|
`font-latex-subscript-face' define custom :height values < 1.0.
|
|
|
|
|
Therefore, scripts are displayed with a slightly smaller font
|
|
|
|
|
than normal math text. If `font-latex-fontify-script' is
|
|
|
|
|
`multi-level' or `invisible', the font size becomes too small to
|
|
|
|
|
be readable after a few levels. This option allows to specify
|
|
|
|
|
the maximum level after which the size of the script text won't
|
|
|
|
|
be shrunken anymore.
|
|
|
|
|
|
|
|
|
|
For example, see this expression:
|
|
|
|
|
|
|
|
|
|
\\( x^{y^{z^a_b}} \\)
|
|
|
|
|
|
|
|
|
|
x has scriptification level 0, y has level 1, z has level 2, and
|
|
|
|
|
both a and b have scriptification level 3.
|
|
|
|
|
|
|
|
|
|
If `font-latex-fontify-script-max-level' was 2, then z, a, and b
|
|
|
|
|
would have the same font size. If it was 3 or more, then a and b
|
|
|
|
|
were smaller than z just in the same way as z is smaller than y
|
|
|
|
|
and y is smaller than x."
|
|
|
|
|
:group 'font-latex
|
|
|
|
|
:type 'integer)
|
|
|
|
|
|
|
|
|
|
(defcustom font-latex-script-display '((raise -0.5) . (raise 0.5))
|
|
|
|
|
"Display specification for subscript and superscript content.
|
|
|
|
|
The car is used for subscript, the cdr is used for superscripts."
|
|
|
|
|
:group 'font-latex
|
|
|
|
|
:type '(cons (choice (sexp :tag "Subscript form")
|
|
|
|
|
(const :tag "No lowering" nil))
|
|
|
|
|
(choice (sexp :tag "Superscript form")
|
|
|
|
|
(const :tag "No raising" nil))))
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
;;; Syntactic keywords
|
|
|
|
|
|
|
|
|
|
(defvar font-latex-syntactic-keywords nil
|
|
|
|
|
"Syntactic keywords used by `font-latex'.")
|
|
|
|
|
(make-variable-buffer-local 'font-latex-syntactic-keywords)
|
|
|
|
|
|
|
|
|
|
(defvar font-latex-syntactic-keywords-extra nil
|
|
|
|
|
"List of syntactic keywords to add to `font-latex-syntactic-keywords'.
|
|
|
|
|
The form should be the same as in `font-lock-syntactic-keywords'.")
|
|
|
|
|
(make-variable-buffer-local 'font-latex-syntactic-keywords-extra)
|
|
|
|
|
|
|
|
|
|
;; Set and updated in `font-latex-set-syntactic-keywords'.
|
|
|
|
|
(defvar font-latex-doctex-syntactic-keywords nil)
|
|
|
|
|
|
|
|
|
|
(defun font-latex-set-syntactic-keywords ()
|
|
|
|
|
"Set the variable `font-latex-syntactic-keywords'.
|
|
|
|
|
This function can be used to refresh the variable in case other
|
|
|
|
|
variables influencing its value, like `LaTeX-verbatim-environments',
|
|
|
|
|
have changed."
|
|
|
|
|
;; Checks for non-emptiness of lists added in order to cater for
|
|
|
|
|
;; installations where `(regexp-opt-group nil)' would enter a loop.
|
|
|
|
|
(let ((verb-envs (and (fboundp 'LaTeX-verbatim-environments)
|
|
|
|
|
(LaTeX-verbatim-environments)))
|
|
|
|
|
(verb-macros-with-delims
|
|
|
|
|
(and (fboundp 'LaTeX-verbatim-macros-with-delims)
|
|
|
|
|
(LaTeX-verbatim-macros-with-delims)))
|
|
|
|
|
(verb-macros-with-braces
|
|
|
|
|
(and (fboundp 'LaTeX-verbatim-macros-with-braces)
|
|
|
|
|
(LaTeX-verbatim-macros-with-braces))))
|
|
|
|
|
(setq verb-envs (and verb-envs (regexp-opt verb-envs))
|
|
|
|
|
verb-macros-with-delims (and verb-macros-with-delims
|
|
|
|
|
(regexp-opt verb-macros-with-delims))
|
|
|
|
|
verb-macros-with-braces (and verb-macros-with-braces
|
|
|
|
|
(regexp-opt verb-macros-with-braces))
|
|
|
|
|
font-latex-syntactic-keywords nil)
|
|
|
|
|
(unless (= (length verb-envs) 0)
|
|
|
|
|
(add-to-list
|
|
|
|
|
'font-latex-syntactic-keywords
|
|
|
|
|
`(,(concat
|
|
|
|
|
"^[ \t]*\\\\begin *{\\(?:" verb-envs "\\)}"
|
|
|
|
|
;; Some environments accept an optional and/or mandatory
|
|
|
|
|
;; argument that can span over more lines. Between
|
|
|
|
|
;; "\begin{<envname>}" and the optional argument there can
|
|
|
|
|
;; be whitespaces and the newline can be commented by a "%"
|
|
|
|
|
;; character.
|
|
|
|
|
"[ \t]*\\(?:%.*\n[ \t]*\\)?"
|
|
|
|
|
;; The following line of the regexp matches the optional
|
|
|
|
|
;; argument and allows for up to one level of brackets
|
|
|
|
|
;; inside the argument (e.g., the dialect of a language in
|
|
|
|
|
;; the `lstlisting' environment by the `listings' package).
|
|
|
|
|
"\\(?:\\[[^][]*\\(?:\\[[^][]*\\][^][]*\\)*\\]\\)?"
|
|
|
|
|
;; After the optional argument, there may also be another
|
|
|
|
|
;; mandatory argument(s) (e.g. with VerbatimOut or the
|
|
|
|
|
;; minted envs or defined with `lstnewenvironment'). Use
|
|
|
|
|
;; the same trick as above in order to allow one level of
|
|
|
|
|
;; braces in the argument.
|
|
|
|
|
"\\(?:{[^{}]*\\(?:{[^{}]*}[^{}]*\\)*}\\)*"
|
|
|
|
|
;; Now match the final newline. The "." alternative
|
|
|
|
|
;; catches the case where verbatim content is written
|
|
|
|
|
;; immediately after the \begin{verbatim}.
|
|
|
|
|
"\\(\n\\|.\\)")
|
|
|
|
|
(1 "|" t)))
|
|
|
|
|
(add-to-list
|
|
|
|
|
'font-latex-syntactic-keywords
|
|
|
|
|
;; Using the newline character for the syntax property often
|
|
|
|
|
;; resulted in fontification problems when text was inserted at
|
|
|
|
|
;; the end of the verbatim environment. That's why we now use
|
|
|
|
|
;; the starting backslash of \end. There is a hack in
|
|
|
|
|
;; `font-latex-make-user-keywords' to remove the spurious
|
|
|
|
|
;; fontification of the backslash.
|
|
|
|
|
`(,(concat "\\(\\\\\\)end *{\\(?:" verb-envs "\\)}")
|
|
|
|
|
(1 "|" t))))
|
|
|
|
|
(unless (= (length verb-macros-with-delims) 0)
|
|
|
|
|
(add-to-list
|
|
|
|
|
'font-latex-syntactic-keywords
|
|
|
|
|
`(,(concat "\\\\\\(?:" verb-macros-with-delims "\\)"
|
|
|
|
|
;; Some macros take an optional argument. This is
|
|
|
|
|
;; the same line as above for environments.
|
|
|
|
|
"\\(?:\\[[^][]*\\(?:\\[[^][]*\\][^][]*\\)*\\]\\)?"
|
|
|
|
|
;; An opening curly brace as delimiter is valid, but
|
|
|
|
|
;; allowing it might screw up fontification of stuff
|
|
|
|
|
;; like "\url{...} foo \textbf{<--!...}".
|
|
|
|
|
"\\([^a-z@*\n\f{]\\).*?"
|
|
|
|
|
;; Give an escape char at the end of the verbatim
|
|
|
|
|
;; construct punctuation syntax. Prevents wrong
|
|
|
|
|
;; fontification of stuff like "\verb|foo\|".
|
|
|
|
|
"\\(" (regexp-quote TeX-esc) "*\\)\\(\\1\\)")
|
|
|
|
|
(1 "\"") (2 ".") (3 "\""))))
|
|
|
|
|
(unless (= (length verb-macros-with-braces) 0)
|
|
|
|
|
(add-to-list
|
|
|
|
|
'font-latex-syntactic-keywords
|
|
|
|
|
`(,(concat "\\\\\\(?:" verb-macros-with-braces "\\)"
|
|
|
|
|
;; Some macros take an optional argument. This is
|
|
|
|
|
;; the same line as above for environments.
|
|
|
|
|
"\\(?:\\[[^][]*\\(?:\\[[^][]*\\][^][]*\\)*\\]\\)?"
|
2023-07-27 19:52:58 +00:00
|
|
|
;; Within verb macros with braces, only balanced
|
|
|
|
|
;; pairs of braces are allowed; so we respect this
|
|
|
|
|
;; and allow one level of balanced braces. Give
|
|
|
|
|
;; escape char(s) at the end of the verbatim
|
|
|
|
|
;; construct punctuation syntax.
|
|
|
|
|
"\\({\\)[^}{]*?"
|
|
|
|
|
"\\(?:{[^}{]*}[^}{]*?\\)*"
|
|
|
|
|
"\\(" (regexp-quote TeX-esc) "*\\)"
|
|
|
|
|
"\\(}\\)")
|
|
|
|
|
(1 "|") (2 ".") (3 "|")))))
|
2022-08-25 17:42:37 +00:00
|
|
|
(when font-latex-syntactic-keywords-extra
|
|
|
|
|
(nconc font-latex-syntactic-keywords font-latex-syntactic-keywords-extra))
|
|
|
|
|
;; ;; Cater for docTeX mode.
|
|
|
|
|
;; (setq font-latex-doctex-syntactic-keywords
|
|
|
|
|
;; (append font-latex-syntactic-keywords
|
|
|
|
|
;; ;; For docTeX comment-in-doc.
|
|
|
|
|
;; '(("\\(\\^\\)\\^A" (1 (font-latex-doctex-^^A))))))
|
|
|
|
|
;; Finally, compute our `syntax-propertize-function' anew.
|
|
|
|
|
(setq-local syntax-propertize-function
|
|
|
|
|
(font-latex--make-syntax-propertize-function)))
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
;;; Syntactic fontification
|
|
|
|
|
|
|
|
|
|
(defun font-latex-syntactic-face-function (state)
|
|
|
|
|
(if (nth 3 state)
|
|
|
|
|
'font-latex-verbatim-face
|
|
|
|
|
'font-lock-comment-face))
|
|
|
|
|
|
|
|
|
|
;;; Faces
|
|
|
|
|
|
|
|
|
|
(defface font-latex-bold-face
|
|
|
|
|
(let ((font '(:inherit bold)))
|
|
|
|
|
`((((class grayscale) (background light))
|
|
|
|
|
(:foreground "DimGray" ,@font))
|
|
|
|
|
(((class grayscale) (background dark))
|
|
|
|
|
(:foreground "LightGray" ,@font))
|
|
|
|
|
(((class color) (background light))
|
|
|
|
|
(:foreground "DarkOliveGreen" ,@font))
|
|
|
|
|
(((class color) (background dark))
|
|
|
|
|
(:foreground "OliveDrab" ,@font))
|
|
|
|
|
(t (,@font))))
|
|
|
|
|
"Face used to highlight text to be typeset in bold."
|
|
|
|
|
:group 'font-latex-highlighting-faces)
|
|
|
|
|
|
|
|
|
|
(defface font-latex-italic-face
|
|
|
|
|
(let ((font '(:inherit italic)))
|
|
|
|
|
`((((class grayscale) (background light))
|
|
|
|
|
(:foreground "DimGray" ,@font))
|
|
|
|
|
(((class grayscale) (background dark))
|
|
|
|
|
(:foreground "LightGray" ,@font))
|
|
|
|
|
(((class color) (background light))
|
|
|
|
|
(:foreground "DarkOliveGreen" ,@font))
|
|
|
|
|
(((class color) (background dark))
|
|
|
|
|
(:foreground "OliveDrab" ,@font))
|
|
|
|
|
(t (,@font))))
|
|
|
|
|
"Face used to highlight text to be typeset in italic."
|
|
|
|
|
:group 'font-latex-highlighting-faces)
|
|
|
|
|
|
2022-11-08 03:31:08 +00:00
|
|
|
(defface font-latex-underline-face
|
|
|
|
|
(let ((font '(:inherit underline)))
|
|
|
|
|
`((((class grayscale) (background light))
|
|
|
|
|
(:foreground "DimGray" ,@font))
|
|
|
|
|
(((class grayscale) (background dark))
|
|
|
|
|
(:foreground "LightGray" ,@font))
|
|
|
|
|
(((class color) (background light))
|
|
|
|
|
(:foreground "DarkOliveGreen" ,@font))
|
|
|
|
|
(((class color) (background dark))
|
|
|
|
|
(:foreground "OliveDrab" ,@font))
|
|
|
|
|
(t (,@font))))
|
|
|
|
|
"Face used to highlight text to be underlined."
|
|
|
|
|
:group 'font-latex-highlighting-faces)
|
|
|
|
|
|
2022-08-25 17:42:37 +00:00
|
|
|
(defface font-latex-math-face
|
|
|
|
|
(let ((font '(:inherit underline)))
|
|
|
|
|
`((((class grayscale) (background light))
|
|
|
|
|
(:foreground "DimGray" ,@font))
|
|
|
|
|
(((class grayscale) (background dark))
|
|
|
|
|
(:foreground "LightGray" ,@font))
|
|
|
|
|
(((class color) (background light))
|
|
|
|
|
(:foreground "SaddleBrown"))
|
|
|
|
|
(((class color) (background dark))
|
|
|
|
|
(:foreground "burlywood"))
|
|
|
|
|
(t (,@font))))
|
|
|
|
|
"Face used to highlight math."
|
|
|
|
|
:group 'font-latex-highlighting-faces)
|
|
|
|
|
|
|
|
|
|
(defface font-latex-sedate-face
|
|
|
|
|
'((((class grayscale) (background light)) (:foreground "DimGray"))
|
|
|
|
|
(((class grayscale) (background dark)) (:foreground "LightGray"))
|
|
|
|
|
(((class color) (background light)) (:foreground "DimGray"))
|
|
|
|
|
(((class color) (background dark)) (:foreground "LightGray"))
|
|
|
|
|
;;;(t (:underline t))
|
|
|
|
|
)
|
|
|
|
|
"Face used to highlight sedate stuff."
|
|
|
|
|
:group 'font-latex-highlighting-faces)
|
|
|
|
|
|
|
|
|
|
(defface font-latex-string-face
|
|
|
|
|
(let ((font '(:inherit italic)))
|
|
|
|
|
`((((type tty) (class color))
|
|
|
|
|
(:foreground "green"))
|
|
|
|
|
(((class grayscale) (background light))
|
|
|
|
|
(:foreground "DimGray" ,@font))
|
|
|
|
|
(((class grayscale) (background dark))
|
|
|
|
|
(:foreground "LightGray" ,@font))
|
|
|
|
|
(((class color) (background light))
|
|
|
|
|
(:foreground "RosyBrown"))
|
|
|
|
|
(((class color) (background dark))
|
|
|
|
|
(:foreground "LightSalmon"))
|
|
|
|
|
(t (,@font))))
|
|
|
|
|
"Face used to highlight strings."
|
|
|
|
|
:group 'font-latex-highlighting-faces)
|
|
|
|
|
|
|
|
|
|
(defface font-latex-warning-face
|
|
|
|
|
(let ((font '(:inherit bold)))
|
|
|
|
|
`((((class grayscale)(background light))
|
|
|
|
|
(:foreground "DimGray" ,@font))
|
|
|
|
|
(((class grayscale)(background dark))
|
|
|
|
|
(:foreground "LightGray" ,@font))
|
|
|
|
|
(((class color)(background light))
|
|
|
|
|
(:foreground "red" ,@font))
|
|
|
|
|
(((class color)(background dark))
|
|
|
|
|
(:foreground "red" ,@font))
|
|
|
|
|
(t (,@font))))
|
|
|
|
|
"Face for important keywords."
|
|
|
|
|
:group 'font-latex-highlighting-faces)
|
|
|
|
|
|
|
|
|
|
(defface font-latex-verbatim-face
|
|
|
|
|
(let ((font '(:inherit fixed-pitch)))
|
|
|
|
|
`((((class grayscale) (background light))
|
|
|
|
|
(:foreground "DimGray" ,@font))
|
|
|
|
|
(((class grayscale) (background dark))
|
|
|
|
|
(:foreground "LightGray" ,@font))
|
|
|
|
|
(((class color) (background light))
|
|
|
|
|
(:foreground "SaddleBrown" ,@font))
|
|
|
|
|
(((class color) (background dark))
|
|
|
|
|
(:foreground "burlywood" ,@font))
|
|
|
|
|
(t (,@font))))
|
|
|
|
|
"Face used to highlight TeX verbatim environments."
|
|
|
|
|
:group 'font-latex-highlighting-faces)
|
|
|
|
|
|
|
|
|
|
(defface font-latex-superscript-face
|
|
|
|
|
'((t (:height 0.85)))
|
|
|
|
|
"Face used for superscripts."
|
|
|
|
|
:group 'font-latex-highlighting-faces)
|
|
|
|
|
|
|
|
|
|
(defface font-latex-subscript-face
|
|
|
|
|
'((t (:height 0.85)))
|
|
|
|
|
"Face used for subscripts."
|
|
|
|
|
:group 'font-latex-highlighting-faces)
|
|
|
|
|
|
|
|
|
|
(defface font-latex-script-char-face
|
|
|
|
|
(let ((font '(:inherit underline)))
|
|
|
|
|
`((((class grayscale) (background light))
|
|
|
|
|
(:foreground "DarkGray" ,@font))
|
|
|
|
|
(((class grayscale) (background dark))
|
|
|
|
|
(:foreground "gray" ,@font))
|
|
|
|
|
(((class color) (background light))
|
|
|
|
|
(:foreground "salmon"))
|
|
|
|
|
(((class color) (background dark))
|
|
|
|
|
(:foreground "DarkRed"))
|
|
|
|
|
(t (,@font))))
|
|
|
|
|
"Face used for the script chars ^ and _."
|
|
|
|
|
:group 'font-latex-highlighting-faces)
|
|
|
|
|
|
|
|
|
|
(defface font-latex-slide-title-face
|
|
|
|
|
'((t (:inherit (variable-pitch font-lock-type-face)
|
|
|
|
|
:weight bold :height 1.2)))
|
|
|
|
|
"Face for slide titles."
|
|
|
|
|
:group 'font-latex-highlighting-faces)
|
|
|
|
|
|
|
|
|
|
;;; Setup
|
|
|
|
|
|
|
|
|
|
(defvar font-latex-syntax-alist
|
|
|
|
|
;; Use word syntax for @ because we use \> for matching macros and
|
|
|
|
|
;; we don't want \foo@bar to be found if we search for \foo.
|
|
|
|
|
'((?\( . ".") (?\) . ".") (?@ . "w"))
|
|
|
|
|
"List of specifiers for the syntax alist of `font-lock-defaults'.")
|
|
|
|
|
|
|
|
|
|
(defun font-latex-add-to-syntax-alist (list)
|
|
|
|
|
"Activate syntactic font locking for the entries in LIST.
|
|
|
|
|
The entries are added to `font-latex-syntax-alist' and eventually
|
|
|
|
|
end up in `font-lock-defaults'. Each entry in LIST should be a
|
|
|
|
|
cons pair as expected by `font-lock-defaults'. The function also
|
|
|
|
|
triggers Font Lock to recognize the change."
|
|
|
|
|
(set (make-local-variable 'font-latex-syntax-alist)
|
|
|
|
|
(append font-latex-syntax-alist list))
|
|
|
|
|
;; We modify the `font-lock-syntax-table' directly but also call
|
|
|
|
|
;; `font-latex-setup' in order to have `font-lock-defaults' be in sync.
|
|
|
|
|
(font-latex-setup)
|
|
|
|
|
(dolist (elt list)
|
|
|
|
|
(modify-syntax-entry (car elt) (cdr elt) font-lock-syntax-table))
|
|
|
|
|
;; Trigger refontification.
|
|
|
|
|
(when (fboundp 'font-lock-flush)
|
|
|
|
|
(font-lock-flush)))
|
|
|
|
|
|
|
|
|
|
(defun font-latex--make-syntax-propertize-function ()
|
|
|
|
|
"Return a `syntax-propertize-function' for (La|Doc)TeX documents."
|
|
|
|
|
(let ((kws ;; (if (derived-mode-p 'doctex-mode)
|
|
|
|
|
;; font-latex-doctex-syntactic-keywords
|
|
|
|
|
font-latex-syntactic-keywords)) ;; )
|
|
|
|
|
(syntax-propertize-via-font-lock kws)))
|
|
|
|
|
|
|
|
|
|
;;;###autoload
|
|
|
|
|
(defun font-latex-setup ()
|
|
|
|
|
"Setup this buffer for LaTeX font-lock. Usually called from a hook."
|
|
|
|
|
(font-latex-set-syntactic-keywords)
|
|
|
|
|
|
|
|
|
|
;; Activate multi-line fontification facilities.
|
|
|
|
|
(set (make-local-variable 'font-lock-multiline) t)
|
|
|
|
|
|
|
|
|
|
;; The test for `major-mode' currently only works with docTeX mode
|
|
|
|
|
;; because `TeX-install-font-lock' is called explicitly in
|
|
|
|
|
;; `doctex-mode'. In case other modes have to be distinguished as
|
|
|
|
|
;; well, remove the call to `TeX-install-font-lock' from
|
|
|
|
|
;; `VirTeX-common-initialization' and place it in the different
|
|
|
|
|
;; `xxx-mode' calls instead, but _after_ `major-mode' is set.
|
|
|
|
|
(let ((defaults
|
|
|
|
|
`((font-latex-keywords font-latex-keywords-1 font-latex-keywords-2)
|
|
|
|
|
nil nil ,font-latex-syntax-alist nil))
|
|
|
|
|
(variables
|
|
|
|
|
'((font-lock-mark-block-function . mark-paragraph)
|
|
|
|
|
(font-lock-fontify-region-function
|
|
|
|
|
. font-latex-fontify-region)
|
|
|
|
|
(font-lock-unfontify-region-function
|
|
|
|
|
. font-latex-unfontify-region)
|
|
|
|
|
(font-lock-extend-region-functions
|
|
|
|
|
font-lock-extend-region-wholelines
|
|
|
|
|
font-lock-extend-region-multiline
|
|
|
|
|
font-latex-extend-region-backwards-command-with-args
|
|
|
|
|
font-latex-extend-region-backwards-command-in-braces
|
|
|
|
|
font-latex-extend-region-backwards-quotation
|
|
|
|
|
font-latex-extend-region-backwards-math)
|
|
|
|
|
(syntax-propertize-extend-region-functions
|
|
|
|
|
syntax-propertize-wholelines
|
|
|
|
|
font-latex-sp-extend-region-backwards-verb-env))))
|
|
|
|
|
;; Add the mode-dependent stuff to the basic variables defined above.
|
|
|
|
|
(if (eq major-mode 'doctex-mode)
|
|
|
|
|
(progn
|
|
|
|
|
(setcar defaults (append (car defaults)
|
|
|
|
|
'(font-latex-doctex-keywords)))
|
|
|
|
|
(setq variables
|
|
|
|
|
(append variables
|
|
|
|
|
'((font-lock-syntactic-face-function
|
|
|
|
|
. font-latex-doctex-syntactic-face-function)))))
|
|
|
|
|
(setq variables
|
|
|
|
|
(append variables
|
|
|
|
|
'((font-lock-syntactic-face-function
|
|
|
|
|
. font-latex-syntactic-face-function)))))
|
|
|
|
|
;; Set the defaults.
|
|
|
|
|
(setq font-lock-defaults (append defaults variables)))
|
|
|
|
|
|
|
|
|
|
;; Make sure fontification will be refreshed if a user sets variables
|
|
|
|
|
;; influencing fontification in her file-local variables section.
|
|
|
|
|
(add-hook 'hack-local-variables-hook #'font-latex-after-hacking-local-variables t t))
|
|
|
|
|
|
|
|
|
|
(defun font-latex-update-font-lock (&optional _syntactic-kws)
|
|
|
|
|
"Tell font-lock about updates of fontification rules.
|
|
|
|
|
If SYNTACTIC-KWS is non-nil, also update
|
|
|
|
|
`font-latex-syntactic-keywords'."
|
|
|
|
|
(display-warning
|
|
|
|
|
'auctex
|
|
|
|
|
(concat "`font-latex-update-font-lock' should not be called.
|
|
|
|
|
It is obsolete and going to be removed.
|
|
|
|
|
If you have called `font-latex-add-keywords' and want to refresh fontification,
|
|
|
|
|
call `font-lock-flush' instead.
|
|
|
|
|
If you changed syntactic fontification, for example, one of the variables
|
|
|
|
|
- `LaTeX-verbatim-macros-with-delims'
|
|
|
|
|
- `LaTeX-verbatim-macros-with-delims-local'
|
|
|
|
|
- `LaTeX-verbatim-macros-with-braces'
|
|
|
|
|
- `LaTeX-verbatim-macros-with-braces-local'
|
|
|
|
|
- `LaTeX-verbatim-environments'
|
|
|
|
|
- `LaTeX-verbatim-environments-local'
|
|
|
|
|
- `font-latex-syntactic-keywords-extra'
|
|
|
|
|
then call `font-latex-set-syntactic-keywords'.")))
|
|
|
|
|
|
|
|
|
|
(make-obsolete 'font-latex-update-font-lock nil "12.2.4")
|
|
|
|
|
|
|
|
|
|
(defvar font-latex--updated-region-end nil
|
|
|
|
|
;; During font lock operation, matched range sometimes exceeds the
|
2022-11-08 03:31:08 +00:00
|
|
|
;; given end limit. So record the actual end in this variable to
|
2022-08-25 17:42:37 +00:00
|
|
|
;; notify the font lock machinery.
|
|
|
|
|
;; Match functions should do the following two if the end of the
|
|
|
|
|
;; actual match goes beyond the limit:
|
|
|
|
|
;; 1. If the value of this variable is smaller than limit, set this
|
|
|
|
|
;; variable to that limit.
|
|
|
|
|
;; 2. When the end of the actual match exceeds this variable,
|
|
|
|
|
;; - apply `font-lock-unfontify-region' between the value of this
|
|
|
|
|
;; variable and the end of the actual match
|
|
|
|
|
;; - update this variable to the end of the actual match
|
|
|
|
|
;; See implementation of `font-latex-match-math-env' for actual usage.
|
|
|
|
|
"Record the end of fontification.")
|
|
|
|
|
(defun font-latex-fontify-region (beg end &optional verbose)
|
|
|
|
|
"Fontify region from BEG to END.
|
|
|
|
|
Take care when the actually fonfified region was extended beyond END."
|
|
|
|
|
(setq font-latex--updated-region-end end)
|
|
|
|
|
(let ((res (font-lock-default-fontify-region beg end verbose)))
|
2022-11-08 03:31:08 +00:00
|
|
|
`(jit-lock-bounds ,(cadr res) .
|
|
|
|
|
,(max (cddr res) font-latex--updated-region-end))))
|
2022-08-25 17:42:37 +00:00
|
|
|
|
|
|
|
|
;; Copy and adaption of `tex-font-lock-unfontify-region' from
|
|
|
|
|
;; tex-mode.el in GNU Emacs on 2004-08-04.
|
|
|
|
|
;; (XEmacs passes a third argument to the function.)
|
|
|
|
|
(defun font-latex-unfontify-region (beg end &rest _ignored)
|
|
|
|
|
"Unfontify region from BEG to END."
|
|
|
|
|
(font-lock-default-unfontify-region beg end)
|
|
|
|
|
(remove-list-of-text-properties beg end '(script-level invisible))
|
|
|
|
|
(while (< beg end)
|
|
|
|
|
(let ((next (next-single-property-change beg 'display nil end))
|
|
|
|
|
(prop (get-text-property beg 'display)))
|
|
|
|
|
(if (and (eq (car-safe prop) 'raise)
|
|
|
|
|
(null (cddr prop)))
|
|
|
|
|
(put-text-property beg next 'display nil))
|
|
|
|
|
(setq beg next))))
|
|
|
|
|
|
|
|
|
|
(defun font-latex-after-hacking-local-variables ()
|
|
|
|
|
"Refresh fontification if required by updates of file-local variables.
|
|
|
|
|
This function is added to `hack-local-variables-hook' and
|
|
|
|
|
recomputes fontification if variables affecting fontification are
|
|
|
|
|
modified. Such variables include
|
|
|
|
|
`LaTeX-verbatim-environments-local',
|
|
|
|
|
`LaTeX-verbatim-macros-with-braces-local',
|
|
|
|
|
`LaTeX-verbatim-macros-with-delims-local'."
|
|
|
|
|
(when
|
|
|
|
|
;; In Emacs we know if the value came from file or directory
|
|
|
|
|
;; locals. Note to self: directory-local variables are also added
|
|
|
|
|
;; to file-local-variables-alist.
|
|
|
|
|
(let ((hacked-local-vars (mapcar #'car file-local-variables-alist)))
|
|
|
|
|
(or (memq 'LaTeX-verbatim-environments-local hacked-local-vars)
|
|
|
|
|
(memq 'LaTeX-verbatim-macros-with-braces-local hacked-local-vars)
|
|
|
|
|
(memq 'LaTeX-verbatim-macros-with-delims-local hacked-local-vars)))
|
|
|
|
|
;; Ok, we need to refresh syntactic fontification.
|
|
|
|
|
(font-latex-set-syntactic-keywords)))
|
|
|
|
|
|
|
|
|
|
;;; Utility functions
|
|
|
|
|
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|
|
(defun font-latex-find-matching-close (openchar closechar)
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|
|
"Skip over matching pairs of OPENCHAR and CLOSECHAR.
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|
|
OPENCHAR is the opening character and CLOSECHAR is the closing
|
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|
|
character. Character pairs are usually { } or [ ]. Comments are
|
|
|
|
|
ignored during the search."
|
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|
(let ((parse-sexp-ignore-comments
|
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(not (eq major-mode 'doctex-mode))) ; scan-sexps ignores comments
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|
(init-point (point))
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|
(mycount 1)
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(esc-char (or (and (boundp 'TeX-esc) TeX-esc) "\\"))
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|
;; XXX: Do not look up syntax-table properties since they may
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|
|
;; be misleading, e.g. in the case of "{foo}^^A" where the
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|
|
;; closing brace gets a comment end syntax.
|
2022-11-08 03:31:08 +00:00
|
|
|
;; (2022 Mar) The latter half of the above paragraph no longer
|
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|
|
;; applies since we changed the way to fontify ^^A comment.
|
2022-08-25 17:42:37 +00:00
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(parse-sexp-lookup-properties nil))
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|
(or
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(condition-case nil
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|
|
(progn
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|
(goto-char (with-syntax-table
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|
|
(TeX-search-syntax-table openchar closechar)
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|
(scan-sexps (point) 1)))
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;; No error code. See if closechar is unquoted
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|
(save-excursion
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(backward-char 1)
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(zerop (mod (skip-chars-backward (regexp-quote esc-char)) 2))))
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|
(error nil))
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(save-match-data
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(goto-char (1+ init-point))
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(while (and (> mycount 0)
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(re-search-forward
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(string ?\[
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;; closechar might be ]
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|
;; and therefor must be first in regexp
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closechar openchar
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?\])
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nil t))
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|
(cond
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((font-latex-commented-outp)
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(forward-line 1))
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((save-excursion
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|
(backward-char 1)
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|
|
(zerop (mod (skip-chars-backward (regexp-quote esc-char))
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2)))
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|
(setq mycount (+ mycount
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|
|
(if (= (preceding-char) openchar) 1 -1)))))))
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|
|
(if (= mycount 0)
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|
t
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|
|
(goto-char init-point)
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|
nil))))
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|
|
(defun font-latex-commented-outp ()
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|
|
"Return t if comment character is found between bol and point."
|
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|
|
(save-excursion
|
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|
|
|
(let ((limit (point))
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|
|
(esc-char (if (and (boundp 'TeX-esc) TeX-esc) TeX-esc "\\")))
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|
|
(forward-line 0)
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|
|
|
(if (and (eq (char-after) ?\%)
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|
|
|
(not (font-latex-faces-present-p 'font-latex-verbatim-face)))
|
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|
|
(not (eq major-mode 'doctex-mode))
|
|
|
|
|
(catch 'found
|
|
|
|
|
(while (progn (skip-chars-forward "^%" limit)
|
|
|
|
|
(< (point) limit))
|
|
|
|
|
(when (and (save-excursion
|
|
|
|
|
(zerop (mod (skip-chars-backward
|
|
|
|
|
(regexp-quote esc-char)) 2)))
|
|
|
|
|
(not (font-latex-faces-present-p
|
|
|
|
|
'font-latex-verbatim-face)))
|
|
|
|
|
(throw 'found t))
|
|
|
|
|
(forward-char)))))))
|
|
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|
|
|
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|
|
(defun font-latex-faces-present-p (faces &optional pos)
|
|
|
|
|
"Return t if FACES are present at position POS.
|
|
|
|
|
FACES may be a single face or a list of faces.
|
|
|
|
|
If POS is omitted, the current position of point is used."
|
|
|
|
|
(let* ((faces (if (listp faces) faces (list faces)))
|
|
|
|
|
(pos (or pos (point)))
|
|
|
|
|
(prop (get-text-property pos 'face))
|
|
|
|
|
(prop-list (if (listp prop) prop (list prop))))
|
|
|
|
|
(catch 'member
|
|
|
|
|
(dolist (item prop-list)
|
|
|
|
|
(when (memq item faces)
|
|
|
|
|
(throw 'member t))))))
|
|
|
|
|
|
|
|
|
|
(defun font-latex-forward-comment ()
|
|
|
|
|
"Like `forward-comment' but with special provisions for docTeX mode.
|
|
|
|
|
In docTeX mode \"%\" at the start of a line will be treated as whitespace."
|
|
|
|
|
(if (eq major-mode 'doctex-mode)
|
|
|
|
|
;; XXX: We should probably cater for ^^A as well.
|
|
|
|
|
(progn
|
|
|
|
|
(while (progn (if (bolp) (skip-chars-forward "%"))
|
|
|
|
|
(> (skip-chars-forward " \t\n") 0)))
|
|
|
|
|
(when (eq (char-after) ?%)
|
|
|
|
|
(beginning-of-line 2)
|
|
|
|
|
t))
|
|
|
|
|
(forward-comment 1)))
|
|
|
|
|
|
|
|
|
|
;;; Match functions
|
|
|
|
|
|
|
|
|
|
(defvar font-latex-matched-faces nil
|
|
|
|
|
"List of faces corresponding to matches in match data.")
|
|
|
|
|
|
|
|
|
|
(defun font-latex-matched-face (pos)
|
|
|
|
|
"Return face at position POS in `font-latex-matched-faces'."
|
|
|
|
|
(nth pos font-latex-matched-faces))
|
|
|
|
|
|
|
|
|
|
(defvar font-latex-command-with-args-default-spec nil ; "*[{"
|
|
|
|
|
"Default specifier for keywords without syntax description.
|
|
|
|
|
Set this to nil if verification of command syntax is unwanted.")
|
|
|
|
|
|
|
|
|
|
(defvar font-latex-command-with-args-opt-arg-delims
|
|
|
|
|
'((?\[ . ?\]) (?< . ?>) (?\( . ?\)))
|
|
|
|
|
"List character pairs used as delimiters for optional arguments.")
|
|
|
|
|
|
|
|
|
|
(defvar font-latex-syntax-error-modes '(latex-mode)
|
|
|
|
|
"List of modes where syntax errors in macros should be indicated.")
|
|
|
|
|
|
|
|
|
|
(defun font-latex-match-command-with-arguments (regexp keywords face limit)
|
|
|
|
|
"Search for regexp command KEYWORDS[opt]{arg} before LIMIT.
|
|
|
|
|
Returns nil if none of KEYWORDS is found."
|
|
|
|
|
(setq font-latex-matched-faces nil)
|
|
|
|
|
(catch 'match
|
|
|
|
|
(while (re-search-forward regexp limit t)
|
|
|
|
|
(unless (font-latex-faces-present-p '(font-lock-comment-face
|
|
|
|
|
font-latex-verbatim-face)
|
|
|
|
|
(match-beginning 0))
|
|
|
|
|
(let* ((beg (match-beginning 0))
|
|
|
|
|
end ; Used for multiline text property.
|
|
|
|
|
(match-data (list beg))
|
|
|
|
|
match-beg syntax-error alternative spec
|
|
|
|
|
error-indicator-pos
|
|
|
|
|
(spec-list (string-to-list
|
|
|
|
|
(or (cadr (assoc (match-string 1) keywords))
|
|
|
|
|
font-latex-command-with-args-default-spec)))
|
|
|
|
|
(parse-sexp-ignore-comments t)) ; scan-sexps ignores comments
|
|
|
|
|
(goto-char (match-end 0))
|
|
|
|
|
;; Check for starred macro if first spec is an asterisk or a
|
|
|
|
|
;; plus sign in case of \defaultfontfeatures+ provided by
|
|
|
|
|
;; fontspec.sty
|
|
|
|
|
(when (or (eq (car spec-list) ?*)
|
|
|
|
|
(eq (car spec-list) ?+))
|
|
|
|
|
(setq spec-list (cdr spec-list))
|
|
|
|
|
(skip-chars-forward "*+" (1+ (point))))
|
|
|
|
|
;; Add current point to match data and use keyword face for
|
|
|
|
|
;; region from start to point.
|
|
|
|
|
(nconc match-data (list (point)))
|
|
|
|
|
(add-to-list 'font-latex-matched-faces 'font-lock-keyword-face)
|
|
|
|
|
(setq end (point))
|
|
|
|
|
(catch 'break
|
|
|
|
|
;; Walk the list of specs.
|
|
|
|
|
(while spec-list
|
|
|
|
|
(setq spec (pop spec-list)
|
|
|
|
|
error-indicator-pos beg)
|
|
|
|
|
(while (and (not (eobp)) (font-latex-forward-comment)))
|
|
|
|
|
;; Alternative
|
|
|
|
|
(when (eq spec ?|)
|
|
|
|
|
(setq alternative t)
|
|
|
|
|
(setq spec (pop spec-list)))
|
|
|
|
|
(cond
|
|
|
|
|
;; Macros: \foo
|
|
|
|
|
((eq spec ?\\)
|
|
|
|
|
(if (eq (char-after) spec)
|
|
|
|
|
(progn
|
|
|
|
|
(nconc match-data
|
|
|
|
|
(list (point)
|
|
|
|
|
(progn
|
|
|
|
|
(forward-char)
|
|
|
|
|
(if (zerop (skip-syntax-forward "_w"))
|
|
|
|
|
(forward-char) ; Single-char macro.
|
|
|
|
|
(skip-chars-forward "*+"))
|
|
|
|
|
(point))))
|
|
|
|
|
(nconc font-latex-matched-faces (list face))
|
|
|
|
|
(setq end (max end (point)))
|
|
|
|
|
(when alternative (pop spec-list)))
|
|
|
|
|
(setq syntax-error t)
|
|
|
|
|
(throw 'break nil)))
|
|
|
|
|
;; Mandatory arguments: {...}
|
|
|
|
|
((eq spec ?{)
|
|
|
|
|
(if (and (eq (char-after) spec)
|
|
|
|
|
(setq match-beg (point))
|
|
|
|
|
(font-latex-find-matching-close ?{ ?}))
|
|
|
|
|
(progn
|
|
|
|
|
(nconc match-data (list (1+ match-beg) (1- (point))))
|
|
|
|
|
(nconc font-latex-matched-faces (list face))
|
|
|
|
|
(setq end (max end (1- (point))))
|
|
|
|
|
(when alternative (pop spec-list)))
|
|
|
|
|
(unless alternative
|
|
|
|
|
(setq syntax-error t)
|
|
|
|
|
(when (and match-beg (= match-beg (point)))
|
|
|
|
|
(setq error-indicator-pos match-beg))
|
|
|
|
|
(throw 'break nil))))
|
|
|
|
|
;; Optional arguments: [...] and others
|
|
|
|
|
((eq (char-after) spec)
|
|
|
|
|
(setq match-beg (point))
|
|
|
|
|
(if (font-latex-find-matching-close
|
|
|
|
|
spec (cdr (assq
|
|
|
|
|
spec
|
|
|
|
|
font-latex-command-with-args-opt-arg-delims)))
|
|
|
|
|
(progn
|
|
|
|
|
(nconc match-data (list (1+ match-beg) (1- (point))))
|
|
|
|
|
(nconc font-latex-matched-faces
|
|
|
|
|
(list 'font-lock-variable-name-face))
|
|
|
|
|
(setq end (max end (1- (point)))))
|
|
|
|
|
(setq syntax-error t
|
|
|
|
|
error-indicator-pos match-beg)
|
|
|
|
|
(throw 'break nil))))
|
|
|
|
|
(setq alternative nil)))
|
|
|
|
|
(when (and syntax-error (memq major-mode
|
|
|
|
|
font-latex-syntax-error-modes))
|
|
|
|
|
;; Add the warning face at the front of the list because
|
|
|
|
|
;; the matcher uses 'append and the face would otherwise
|
|
|
|
|
;; be overridden by the keyword face.
|
|
|
|
|
(setq match-data (append (list error-indicator-pos
|
|
|
|
|
(1+ error-indicator-pos))
|
|
|
|
|
match-data))
|
|
|
|
|
(push 'font-latex-warning-face font-latex-matched-faces))
|
|
|
|
|
(store-match-data match-data)
|
|
|
|
|
(throw 'match t))))))
|
|
|
|
|
|
|
|
|
|
;; Those are dynamically bound by font-lock.
|
|
|
|
|
(defvar font-lock-beg)
|
|
|
|
|
(defvar font-lock-end)
|
|
|
|
|
|
|
|
|
|
(defun font-latex-extend-region-backwards-command-with-args ()
|
|
|
|
|
"Extend region backwards for commands with args."
|
|
|
|
|
(save-excursion
|
|
|
|
|
(goto-char font-lock-end)
|
|
|
|
|
(catch 'extend
|
|
|
|
|
(while (TeX-search-backward-unescaped "}" font-lock-beg t)
|
|
|
|
|
(let ((macro-start
|
|
|
|
|
(TeX-find-macro-start
|
|
|
|
|
(max (point-min)
|
|
|
|
|
(- font-lock-beg font-latex-multiline-boundary)))))
|
|
|
|
|
(when (and macro-start
|
|
|
|
|
(< macro-start font-lock-beg))
|
|
|
|
|
(setq font-lock-beg macro-start)
|
|
|
|
|
(throw 'extend t)))))))
|
|
|
|
|
|
|
|
|
|
(defun font-latex-match-command-in-braces (keywords limit)
|
|
|
|
|
"Search for command like {\\bfseries fubar} before LIMIT.
|
|
|
|
|
Sets `match-data' so that:
|
|
|
|
|
subexpression 0 is a warning indicator,
|
|
|
|
|
subexpression 1 is the keyword, and
|
|
|
|
|
subexpression 2 is the rest in the TeX group.
|
|
|
|
|
Return nil if no command is found."
|
|
|
|
|
(catch 'match
|
|
|
|
|
(while (re-search-forward keywords limit t)
|
|
|
|
|
(unless (font-latex-faces-present-p '(font-lock-comment-face
|
|
|
|
|
font-latex-verbatim-face)
|
|
|
|
|
(match-beginning 0))
|
|
|
|
|
(let ((kbeg (match-beginning 0)) (kend (match-end 1))
|
|
|
|
|
(beg (match-end 0))
|
|
|
|
|
cbeg cend
|
|
|
|
|
(parse-sexp-ignore-comments t)) ; scan-sexps ignores comments
|
|
|
|
|
(goto-char kbeg)
|
|
|
|
|
(if (not (eq (preceding-char) ?\{))
|
|
|
|
|
;; Fontify only the keyword (no argument found).
|
|
|
|
|
(progn
|
|
|
|
|
(setq cbeg kbeg cend kend)
|
|
|
|
|
(goto-char (match-end 0))
|
|
|
|
|
(store-match-data (list (point) (point)
|
|
|
|
|
(point) (point)
|
|
|
|
|
cbeg cend))
|
|
|
|
|
(throw 'match t))
|
|
|
|
|
;; There's an opening bracket
|
|
|
|
|
(save-restriction
|
|
|
|
|
;; Restrict to LIMIT.
|
|
|
|
|
(narrow-to-region (point-min) limit)
|
|
|
|
|
(forward-char -1) ; Move on the opening bracket
|
|
|
|
|
(if (font-latex-find-matching-close ?\{ ?\})
|
|
|
|
|
(store-match-data (list kbeg kbeg
|
|
|
|
|
kbeg kend
|
|
|
|
|
beg (1- (point))))
|
|
|
|
|
(goto-char kend)
|
|
|
|
|
(store-match-data (list (1- kbeg) kbeg
|
|
|
|
|
kbeg kend
|
|
|
|
|
kend kend)))
|
|
|
|
|
(throw 'match t))))))))
|
|
|
|
|
|
|
|
|
|
(defun font-latex-extend-region-backwards-command-in-braces ()
|
|
|
|
|
"Extend region backwards for commands in braces."
|
|
|
|
|
(save-excursion
|
|
|
|
|
(goto-char font-lock-end)
|
|
|
|
|
(catch 'extend
|
|
|
|
|
(while (TeX-search-backward-unescaped "}" font-lock-beg t)
|
|
|
|
|
(let ((group-start
|
|
|
|
|
(TeX-find-opening-brace
|
|
|
|
|
nil (max (point-min)
|
|
|
|
|
(- font-lock-beg font-latex-multiline-boundary)))))
|
|
|
|
|
(when group-start
|
|
|
|
|
;; XXX: Actually we'd have to check if any of the
|
|
|
|
|
;; declaration-type macros can be found right after the
|
|
|
|
|
;; brace. If we don't do this (like now) large regions
|
|
|
|
|
;; may be refontified for no good reason. For checking
|
|
|
|
|
;; the built-in `font-latex-match-*' variables for
|
|
|
|
|
;; declaration-type macros as well as the respective
|
|
|
|
|
;; user-defined variables could be concatenated.
|
|
|
|
|
(goto-char group-start)
|
|
|
|
|
(when (< group-start font-lock-beg)
|
|
|
|
|
(setq font-lock-beg group-start)
|
|
|
|
|
(throw 'extend t))))))))
|
|
|
|
|
|
|
|
|
|
(defvar font-latex-match-simple-exclude-list
|
|
|
|
|
'("-" "," "/" "&" "#" "_" "`" "'" "^" "~" "=" "." "\"")
|
|
|
|
|
"List of characters directly after \"\\\" excluded from fontification.
|
|
|
|
|
Each character is a string.")
|
|
|
|
|
|
|
|
|
|
(defvar font-latex-match-simple-include-list '("@")
|
|
|
|
|
"List of characters allowed in a macro for fontification.
|
|
|
|
|
Each character is a string. This variable is initialized to
|
|
|
|
|
\"@\" since internal LaTeX commands are very often redefined in a
|
|
|
|
|
.tex file and the fontification should work correctly in those
|
|
|
|
|
cases.")
|
|
|
|
|
(make-variable-buffer-local 'font-latex-match-simple-include-list)
|
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|
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|
|
(defun font-latex-match-simple-command (limit)
|
|
|
|
|
"Search for command like \\foo before LIMIT."
|
|
|
|
|
;; \s_ matches chars with symbol syntax, \sw chars with word syntax,
|
|
|
|
|
;; \s. chars with punctuation syntax. We must exclude matches where
|
|
|
|
|
;; the first character after the \ is a reserved character and
|
|
|
|
|
;; should not be fontified (e.g. \, in foo\,bar or \- in foo\-bar).
|
|
|
|
|
;; These characters are stored in
|
|
|
|
|
;; `font-latex-match-simple-exclude-list'. In docTeX mode, we
|
|
|
|
|
;; remove "_" from this list to get correct fontification for macros
|
|
|
|
|
;; like `\__module_foo:nnn'
|
|
|
|
|
(let* ((search (lambda ()
|
|
|
|
|
(TeX-re-search-forward-unescaped
|
|
|
|
|
(concat
|
|
|
|
|
;; Chars directly after backslash
|
|
|
|
|
"\\\\\\(\\s_\\|\\sw\\|\\s.\\)"
|
|
|
|
|
;; Start group of the following chars
|
|
|
|
|
"\\(?:["
|
|
|
|
|
;; a-zA-Z are always allowed:
|
|
|
|
|
"a-zA-Z"
|
|
|
|
|
;; Additional characters added by AUCTeX styles
|
|
|
|
|
(mapconcat #'identity
|
|
|
|
|
font-latex-match-simple-include-list
|
|
|
|
|
"")
|
|
|
|
|
;; End group
|
|
|
|
|
"]\\)*")
|
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|
|
limit t)))
|
|
|
|
|
(pos (funcall search)))
|
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|
|
|
(while (and pos
|
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|
|
|
(member (match-string 1)
|
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|
|
|
(if (eq major-mode 'doctex-mode)
|
|
|
|
|
(remove "_" font-latex-match-simple-exclude-list)
|
|
|
|
|
font-latex-match-simple-exclude-list)))
|
|
|
|
|
(setq pos (funcall search)))
|
|
|
|
|
pos))
|
|
|
|
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|
|
(defun font-latex-match-math-env (limit)
|
|
|
|
|
"Match math pattern up to LIMIT.
|
|
|
|
|
Used for patterns like:
|
|
|
|
|
\\( F = ma \\)
|
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|
|
|
\\=\\[ F = ma \\] but not \\\\=\\[len]"
|
|
|
|
|
(catch 'match
|
|
|
|
|
(while (re-search-forward "\\(\\\\(\\)\\|\\(\\\\\\[\\)" limit t)
|
|
|
|
|
(unless (save-excursion
|
|
|
|
|
(goto-char (match-beginning 0))
|
|
|
|
|
;; \\[ does not start a math environment
|
|
|
|
|
(/= (mod (skip-chars-backward "\\\\") 2) 0))
|
|
|
|
|
(let ((beg (match-beginning 0))
|
|
|
|
|
(open-tag (if (match-beginning 1) "\\(" "\\["))
|
|
|
|
|
(close-tag (if (match-beginning 1) "\\)" "\\]")))
|
|
|
|
|
;; Search for both opening and closing tags in order to be
|
|
|
|
|
;; able to avoid erroneously matching stuff like "\(foo \(bar\)".
|
|
|
|
|
(if (and (re-search-forward (concat "[^\\]\\(?:\\\\\\\\\\)*\\("
|
|
|
|
|
(regexp-quote open-tag) "\\|"
|
|
|
|
|
(regexp-quote close-tag) "\\)")
|
|
|
|
|
(+ limit font-latex-multiline-boundary)
|
|
|
|
|
'move)
|
|
|
|
|
(string= (match-string 1) close-tag))
|
|
|
|
|
;; Found closing tag.
|
|
|
|
|
(let ((p (point)))
|
|
|
|
|
(if (< font-latex--updated-region-end limit)
|
|
|
|
|
;; *-extend-region-functions have extended the
|
|
|
|
|
;; limit already.
|
|
|
|
|
(setq font-latex--updated-region-end limit))
|
|
|
|
|
;; If the closing tag is beyond the current end of
|
|
|
|
|
;; region, take care of it.
|
|
|
|
|
(when (< font-latex--updated-region-end p)
|
2022-11-08 03:31:08 +00:00
|
|
|
;; FIXME: Why? Should this use `font-lock-flush'?
|
2022-08-25 17:42:37 +00:00
|
|
|
(font-lock-unfontify-region font-latex--updated-region-end p)
|
|
|
|
|
(setq font-latex--updated-region-end p))
|
|
|
|
|
(store-match-data (list beg beg beg p)))
|
|
|
|
|
;; Did not find closing tag.
|
|
|
|
|
(goto-char (+ beg 2))
|
|
|
|
|
(store-match-data (list beg (point) (point) (point))))
|
|
|
|
|
(throw 'match t))))))
|
|
|
|
|
|
|
|
|
|
(require 'texmathp)
|
|
|
|
|
(defcustom font-latex-math-environments nil
|
|
|
|
|
"List of math environment names for font locking.
|
|
|
|
|
It is no longer recommended to customize this option. You should
|
|
|
|
|
customize `texmathp-tex-commands' instead because it is important
|
|
|
|
|
for stable operation of font lock that this option is coherent
|
|
|
|
|
with that option in addition to `texmathp-tex-commands-default'.
|
|
|
|
|
See info node `(auctex)Fontification of math' to convert your
|
|
|
|
|
customization into `texmathp-tex-commands'."
|
|
|
|
|
;; This option is now used only through
|
|
|
|
|
;; `font-latex--match-math-envII-regexp'.
|
|
|
|
|
:type '(repeat string)
|
|
|
|
|
:group 'font-latex)
|
|
|
|
|
|
|
|
|
|
(defvar font-latex--match-math-envII-regexp nil
|
|
|
|
|
"Regular expression to match math environments.
|
|
|
|
|
Set by `font-latex--update-math-env' and used in
|
|
|
|
|
`font-latex-match-math-envII'.")
|
|
|
|
|
|
|
|
|
|
(defun font-latex-update-math-env ()
|
|
|
|
|
"Update regexp to search for math environments.
|
|
|
|
|
Extract environments marked as `env-on' in
|
|
|
|
|
`texmathp-tex-commands1' except starred variants. Then build
|
|
|
|
|
`font-latex--match-math-envII-regexp' from them, appending the
|
|
|
|
|
environments in `font-latex-math-environments'."
|
|
|
|
|
;; Make sure `texmathp-tex-commands1' is up to date.
|
|
|
|
|
(texmathp-compile)
|
|
|
|
|
(let (envs)
|
|
|
|
|
(dolist (entry texmathp-tex-commands1)
|
|
|
|
|
(if (and (eq 'env-on (cadr entry))
|
|
|
|
|
(not (string= "*" (substring (car entry) -1))))
|
|
|
|
|
(cl-pushnew (car entry) envs :test #'equal)))
|
|
|
|
|
(setq font-latex--match-math-envII-regexp
|
|
|
|
|
(concat "\\\\begin[ \t]*{"
|
|
|
|
|
;; Take user additions also into account.
|
|
|
|
|
(regexp-opt (append font-latex-math-environments envs) t)
|
|
|
|
|
;; Subexpression 2 is used to build the \end{<env>}
|
|
|
|
|
;; construct later.
|
|
|
|
|
"\\(\\*?}\\)"
|
|
|
|
|
;; Match an optional and possible mandatory
|
|
|
|
|
;; argument(s) as long as they are on the same line
|
|
|
|
|
;; with no spaces in-between. The content of optional
|
|
|
|
|
;; argument can span multiple lines.
|
|
|
|
|
"\\(?:\\[[^][]*\\(?:\\[[^][]*\\][^][]*\\)*\\]\\)?"
|
|
|
|
|
"\\(?:{[^}]*}\\)*"))))
|
|
|
|
|
|
|
|
|
|
;; Initialize.
|
|
|
|
|
(font-latex-update-math-env)
|
|
|
|
|
|
|
|
|
|
(defun font-latex-match-math-envII (limit)
|
|
|
|
|
"Match math patterns up to LIMIT.
|
|
|
|
|
Used for patterns like:
|
|
|
|
|
\\begin{equation}
|
|
|
|
|
fontified stuff
|
|
|
|
|
\\end{equation} or
|
|
|
|
|
\\begin{empheq}[X=Y\\Rightarrow]{alignat=3}
|
|
|
|
|
fontified stuff
|
|
|
|
|
\\end{empheq}
|
|
|
|
|
The \\begin{equation} incl. arguments in the same line and
|
|
|
|
|
\\end{equation} are not fontified here."
|
|
|
|
|
(when (re-search-forward font-latex--match-math-envII-regexp limit t)
|
|
|
|
|
(let ((beg (match-end 0)) end
|
|
|
|
|
(beg-of-begin (match-beginning 0)))
|
|
|
|
|
(if (re-search-forward (concat "\\\\end[ \t]*{"
|
|
|
|
|
(regexp-quote
|
|
|
|
|
(buffer-substring-no-properties
|
|
|
|
|
(match-beginning 1)
|
|
|
|
|
(match-end 2))))
|
|
|
|
|
(+ limit font-latex-multiline-boundary) 'move)
|
|
|
|
|
(progn
|
|
|
|
|
(setq end (match-beginning 0))
|
2022-11-08 03:31:08 +00:00
|
|
|
;; FIXME: Duplicate of code in `font-latex-match-math-env'.
|
2022-08-25 17:42:37 +00:00
|
|
|
(if (< font-latex--updated-region-end limit)
|
|
|
|
|
(setq font-latex--updated-region-end limit))
|
|
|
|
|
(when (< font-latex--updated-region-end end)
|
|
|
|
|
(font-lock-unfontify-region font-latex--updated-region-end end)
|
|
|
|
|
(setq font-latex--updated-region-end end)))
|
|
|
|
|
(goto-char beg)
|
|
|
|
|
(setq end beg
|
|
|
|
|
beg-of-begin beg))
|
|
|
|
|
;; Store the position of "\begin{foo}" as (match-beginnig 0) so
|
2022-11-08 03:31:08 +00:00
|
|
|
;; that `font-lock-multiline' text property covers it. This
|
|
|
|
|
;; keeps editing inside multi-line optional argument sane.
|
2022-08-25 17:42:37 +00:00
|
|
|
(store-match-data (list beg-of-begin end beg end))
|
|
|
|
|
t)))
|
|
|
|
|
|
|
|
|
|
(defun font-latex-match-dollar-math (limit)
|
|
|
|
|
"Match inline math $...$ or display math $$...$$ before LIMIT."
|
|
|
|
|
(catch 'match
|
|
|
|
|
(let (beg num)
|
|
|
|
|
(while (font-latex-find-dollar-math limit)
|
|
|
|
|
;; Found "$" which starts $...$ or $$...$$.
|
|
|
|
|
(setq beg (point)
|
|
|
|
|
;; Go inside the math expression.
|
|
|
|
|
num (skip-chars-forward "$" limit))
|
|
|
|
|
;; If those are three or more consecutive $, ignore them and
|
|
|
|
|
;; search again.
|
|
|
|
|
(if (< num 3)
|
|
|
|
|
(if ;; Let's find the same number of live dollar signs.
|
|
|
|
|
(font-latex-find-dollar-math
|
|
|
|
|
;; Hope that limit+font-latex-multiline-boundary
|
|
|
|
|
;; doesn't fall just inside single "$$".
|
|
|
|
|
(min (point-max) (+ limit font-latex-multiline-boundary))
|
|
|
|
|
num)
|
|
|
|
|
;; Found.
|
|
|
|
|
(progn
|
|
|
|
|
(forward-char num)
|
|
|
|
|
(let ((p (point)))
|
2022-11-08 03:31:08 +00:00
|
|
|
;; FIXME: Duplicate of code in `font-latex-match-math-env'.
|
2022-08-25 17:42:37 +00:00
|
|
|
(if (< font-latex--updated-region-end limit)
|
|
|
|
|
(setq font-latex--updated-region-end limit))
|
|
|
|
|
(when (< font-latex--updated-region-end p)
|
|
|
|
|
(font-lock-unfontify-region
|
|
|
|
|
font-latex--updated-region-end p)
|
|
|
|
|
(setq font-latex--updated-region-end p))
|
|
|
|
|
(set-match-data (list beg p)))
|
|
|
|
|
(throw 'match t))
|
|
|
|
|
;; Not found.
|
|
|
|
|
;; That $ or $$ is probably unclosed in the buffer.
|
|
|
|
|
(throw 'match nil)))))))
|
|
|
|
|
|
|
|
|
|
(defun font-latex-find-dollar-math (limit &optional num)
|
|
|
|
|
"Find dollar sign(s) before LIMIT.
|
|
|
|
|
Set point just before the found $. Ignore escaped $ (\"\\$\").
|
|
|
|
|
Optional argument NUM, if non-nil, specifies the number of dollar
|
|
|
|
|
signs to follow the point and must be 1 or 2.
|
|
|
|
|
LIMIT must not exceed the end of buffer."
|
|
|
|
|
(catch 'found
|
|
|
|
|
(while (progn
|
|
|
|
|
(skip-chars-forward "^$" limit)
|
|
|
|
|
(< (point) limit))
|
|
|
|
|
;; Found "$".
|
|
|
|
|
;; If that "$" is not our target, skip over it and search
|
|
|
|
|
;; again.
|
|
|
|
|
(cond
|
|
|
|
|
;; check 1: Are we in a verbatim construct or comment?
|
|
|
|
|
((let ((ppss (syntax-ppss)))
|
|
|
|
|
(or (nth 3 ppss)
|
|
|
|
|
;; Ignore $ in comments...
|
|
|
|
|
(and (nth 4 ppss)
|
|
|
|
|
;; ... except if we're looking for the end of the
|
|
|
|
|
;; inline math. We need to consider this %$
|
|
|
|
|
;; comments because they are the workaround for
|
|
|
|
|
;; falsely triggered math mode due to valid,
|
|
|
|
|
;; non-math occurrences of $. (bug#48365)
|
|
|
|
|
(not num))))
|
|
|
|
|
(skip-chars-forward "$" limit))
|
|
|
|
|
;; check 2: Else, is "$" escaped?
|
|
|
|
|
((TeX-escaped-p)
|
|
|
|
|
(forward-char 1))
|
|
|
|
|
;; check 3: Else, is the number of the following "$" wrong?
|
|
|
|
|
;; This check cannot precede check 2 because "$1+2\$$" is
|
|
|
|
|
;; legal.
|
|
|
|
|
((and (eq num 2) (not (eq (char-after (1+ (point))) ?$)))
|
|
|
|
|
;; If double dollars ($$) are followed by $, skip over that $.
|
|
|
|
|
;; We need not care the case that single dollar ($) is
|
|
|
|
|
;; followed by $$ because expressions like "$1+1$$2+2$" and
|
|
|
|
|
;; "$1+2$$$3+3$$" are legal.
|
|
|
|
|
(forward-char 1))
|
|
|
|
|
(t
|
|
|
|
|
;; That "$" is live one.
|
|
|
|
|
(throw 'found t))))))
|
|
|
|
|
|
|
|
|
|
(defun font-latex-extend-region-backwards-math ()
|
|
|
|
|
"Extend region backwards for math environmets.
|
|
|
|
|
Take into account $...$, $$...$$, \\(...\\) and \\=\\[...\\], too."
|
|
|
|
|
;; Use `texmathp' to identify whether the point is inside math mode.
|
|
|
|
|
;; Only heuristic, but it's very difficult to identify rigorously
|
|
|
|
|
;; without syntactic support.
|
|
|
|
|
|
|
|
|
|
;; Check if `font-lock-beg' is inside math mode.
|
|
|
|
|
(goto-char font-lock-beg)
|
|
|
|
|
|
2022-11-08 03:31:08 +00:00
|
|
|
;; Workaround bug#41522. Ensure `syntax-table' property is given to
|
2022-08-25 17:42:37 +00:00
|
|
|
;; all verbatim-like constructs up to the position before running
|
|
|
|
|
;; `texmathp' in order to prevent wrong fontification of verbatim
|
2022-11-08 03:31:08 +00:00
|
|
|
;; face. This is necessary because `texmathp' calls `up-list'
|
|
|
|
|
;; inside narrowing.
|
2022-08-25 17:42:37 +00:00
|
|
|
(syntax-propertize (point))
|
|
|
|
|
|
|
|
|
|
;; XXX: Should we make the `texmathp' search honor
|
|
|
|
|
;; `font-latex-multiline-boundary'?
|
|
|
|
|
(when (and (texmathp) (< (cdr texmathp-why) font-lock-beg))
|
|
|
|
|
;; Make its beginning a new start of font lock region.
|
|
|
|
|
(setq font-lock-beg (cdr texmathp-why))
|
|
|
|
|
t))
|
|
|
|
|
|
|
|
|
|
(defun font-latex-sp-extend-region-backwards-verb-env (beg end)
|
|
|
|
|
"Extend region backwards for verbatim environments."
|
|
|
|
|
(let ((envs (and (fboundp 'LaTeX-verbatim-environments)
|
|
|
|
|
(LaTeX-verbatim-environments))))
|
|
|
|
|
(when envs
|
|
|
|
|
(save-excursion
|
|
|
|
|
(goto-char end)
|
|
|
|
|
(catch 'extend
|
|
|
|
|
(while (re-search-backward
|
|
|
|
|
(concat "\\\\end[ \t]*{" (regexp-opt envs t) "\\*?}") beg t)
|
|
|
|
|
(when (and (re-search-backward
|
|
|
|
|
(concat "\\\\begin[ \t]*{"
|
|
|
|
|
(buffer-substring-no-properties
|
|
|
|
|
(match-beginning 1)
|
|
|
|
|
(match-end 0))
|
|
|
|
|
;; Match an optional and possible
|
|
|
|
|
;; mandatory argument(s)
|
|
|
|
|
"\\(?:\\[[^][]*\\(?:\\[[^][]*\\][^][]*\\)*\\]\\)?"
|
|
|
|
|
"\\(?:{[^}]*}\\)*")
|
|
|
|
|
(- beg font-latex-multiline-boundary) t)
|
|
|
|
|
(< (point) beg))
|
|
|
|
|
(throw 'extend (cons (point) end)))))))))
|
|
|
|
|
|
|
|
|
|
(defun font-latex-update-quote-list ()
|
|
|
|
|
"Update quote list and regexp if value of `font-latex-quotes' changed."
|
|
|
|
|
(unless (eq font-latex-quotes-control font-latex-quotes)
|
|
|
|
|
(setq font-latex-quotes-control font-latex-quotes)
|
|
|
|
|
(font-latex-quotes-set-internal)
|
|
|
|
|
;; Set order of each entry in `font-latex-quote-list' according to
|
|
|
|
|
;; setting of `font-latex-quotes-internal'.
|
|
|
|
|
(let ((tail font-latex-quote-list)
|
|
|
|
|
elt)
|
|
|
|
|
(while tail
|
|
|
|
|
(setq elt (car tail))
|
|
|
|
|
(when (and (> (safe-length elt) 2)
|
|
|
|
|
(not (eq (nth 2 elt) font-latex-quotes-internal)))
|
|
|
|
|
(setcar tail (list (nth 1 elt) (nth 0 elt)
|
|
|
|
|
font-latex-quotes-internal)))
|
|
|
|
|
(setq tail (cdr tail))))
|
|
|
|
|
(setq font-latex-quote-regexp-beg
|
|
|
|
|
(regexp-opt (mapcar #'car font-latex-quote-list) t))))
|
|
|
|
|
|
|
|
|
|
(defun font-latex-match-quotation (limit)
|
|
|
|
|
"Match quote patterns up to LIMIT.
|
|
|
|
|
Used for patterns like:
|
|
|
|
|
``this is a normal quote'' and these are multilingual quoted strings:
|
|
|
|
|
\"< french \"> and \"`german\"' quotes.
|
|
|
|
|
The quotes << french >> and 8-bit french are used if `font-latex-quotes' is
|
|
|
|
|
set to `french', and >>german<< (and 8-bit) are used if set to `german'."
|
|
|
|
|
(when font-latex-quotes
|
|
|
|
|
(font-latex-update-quote-list)
|
|
|
|
|
;; Search for matches.
|
|
|
|
|
(catch 'match
|
|
|
|
|
(while (TeX-re-search-forward-unescaped
|
|
|
|
|
font-latex-quote-regexp-beg limit t)
|
|
|
|
|
(unless (font-latex-faces-present-p '(font-lock-comment-face
|
|
|
|
|
font-latex-verbatim-face
|
|
|
|
|
font-latex-math-face)
|
|
|
|
|
(match-beginning 0))
|
|
|
|
|
(let* ((beg (match-beginning 0))
|
|
|
|
|
(after-beg (match-end 0))
|
|
|
|
|
(opening-quote (match-string-no-properties 0))
|
|
|
|
|
(closing-quote
|
|
|
|
|
(nth 1 (assoc opening-quote font-latex-quote-list)))
|
|
|
|
|
(nest-count 0)
|
|
|
|
|
(point-of-surrender (+ beg font-latex-multiline-boundary)))
|
|
|
|
|
;; Find closing quote taking nested quotes into account.
|
|
|
|
|
(while (progn
|
|
|
|
|
(re-search-forward
|
|
|
|
|
(concat opening-quote "\\|" closing-quote)
|
|
|
|
|
point-of-surrender 'move)
|
|
|
|
|
(when (and (< (point) point-of-surrender) (not (eobp)))
|
|
|
|
|
(if (string= (match-string-no-properties 0)
|
|
|
|
|
opening-quote)
|
|
|
|
|
(setq nest-count (1+ nest-count))
|
|
|
|
|
(when (/= nest-count 0)
|
|
|
|
|
(setq nest-count (1- nest-count)))))))
|
|
|
|
|
;; If no closing quote was found, set the second match which
|
|
|
|
|
;; will be marked with warning color, if one was found, set
|
|
|
|
|
;; the first match which will be marked with string color.
|
|
|
|
|
(if (or (= (point) point-of-surrender) (eobp))
|
|
|
|
|
(progn
|
|
|
|
|
(goto-char after-beg)
|
|
|
|
|
(store-match-data (list after-beg after-beg beg after-beg)))
|
|
|
|
|
(let ((p (point)))
|
2022-11-08 03:31:08 +00:00
|
|
|
;; FIXME: Duplicate of code in `font-latex-match-math-env'.
|
2022-08-25 17:42:37 +00:00
|
|
|
(if (< font-latex--updated-region-end limit)
|
|
|
|
|
(setq font-latex--updated-region-end limit))
|
|
|
|
|
(when (< font-latex--updated-region-end p)
|
|
|
|
|
(font-lock-unfontify-region
|
|
|
|
|
font-latex--updated-region-end p)
|
|
|
|
|
(setq font-latex--updated-region-end p))
|
|
|
|
|
(store-match-data (list beg p p p))))
|
|
|
|
|
(throw 'match t)))))))
|
|
|
|
|
|
|
|
|
|
(defun font-latex-extend-region-backwards-quotation ()
|
|
|
|
|
"Extend region backwards for quotations."
|
|
|
|
|
(when font-latex-quotes
|
|
|
|
|
(font-latex-update-quote-list)
|
|
|
|
|
(let ((regexp-end (regexp-opt (mapcar #'cadr font-latex-quote-list) t)))
|
|
|
|
|
(save-excursion
|
|
|
|
|
(goto-char font-lock-end)
|
|
|
|
|
(catch 'extend
|
|
|
|
|
(while (re-search-backward regexp-end font-lock-beg t)
|
|
|
|
|
(let ((found-end (match-beginning 0))
|
|
|
|
|
(closing-quote (match-string-no-properties 0))
|
|
|
|
|
(nest-count 0)
|
|
|
|
|
(point-of-surrender (- font-lock-beg
|
|
|
|
|
font-latex-multiline-boundary))
|
|
|
|
|
opening-quote)
|
|
|
|
|
(catch 'found
|
|
|
|
|
(dolist (elt font-latex-quote-list)
|
|
|
|
|
(when (string= (cadr elt) closing-quote)
|
|
|
|
|
(setq opening-quote (car elt))
|
|
|
|
|
(throw 'found nil))))
|
|
|
|
|
;; Find opening quote taking nested quotes into account.
|
|
|
|
|
(while (if (re-search-backward (concat opening-quote "\\|"
|
|
|
|
|
closing-quote)
|
|
|
|
|
point-of-surrender 'move)
|
|
|
|
|
;; Found quotes before point-of-surrender.
|
|
|
|
|
(cond ((string= (match-string-no-properties 0)
|
|
|
|
|
closing-quote)
|
|
|
|
|
;; Encountered another closing quote.
|
|
|
|
|
;; Increase nest-count and continue
|
|
|
|
|
;; the inner loop.
|
|
|
|
|
(setq nest-count (1+ nest-count)))
|
|
|
|
|
;; Found an opening quote.
|
|
|
|
|
((/= nest-count 0)
|
|
|
|
|
;; If in nest, decrease nest-count
|
|
|
|
|
;; and continue the inner loop.
|
|
|
|
|
(setq nest-count (1- nest-count)))
|
|
|
|
|
;; Else we arrived at the opening quote
|
|
|
|
|
;; matching with the closing quote found
|
|
|
|
|
;; in the outer loop.
|
|
|
|
|
((< (point) font-lock-beg)
|
|
|
|
|
;; If that opening quote locates
|
|
|
|
|
;; before `font-lock-beg', break the
|
|
|
|
|
;; outer loop and extend the region.
|
|
|
|
|
(setq font-lock-beg (point))
|
|
|
|
|
(throw 'extend t))
|
|
|
|
|
(t
|
|
|
|
|
;; Else terminate the inner loop and
|
|
|
|
|
;; continue the outer loop.
|
|
|
|
|
nil))
|
|
|
|
|
;; Didn't find quotes before
|
|
|
|
|
;; point-of-surrender.
|
|
|
|
|
;; Go back just before the closing quote,
|
|
|
|
|
;; terminate the inner loop and
|
|
|
|
|
;; continue the outer loop.
|
|
|
|
|
(goto-char found-end)
|
|
|
|
|
nil)))))))))
|
|
|
|
|
|
|
|
|
|
(defun font-latex-match-script (limit)
|
|
|
|
|
"Match subscript and superscript patterns up to LIMIT."
|
|
|
|
|
(when (and font-latex-fontify-script
|
|
|
|
|
(re-search-forward "[_^] *\\([^\n\\{}]\\|\
|
|
|
|
|
\\\\\\([a-zA-Z@]+\\|[^ \t\n]\\)\\|\\({\\)\\)" limit t))
|
|
|
|
|
(if (and (not (memq font-latex-fontify-script '(multi-level invisible)))
|
|
|
|
|
(font-latex-faces-present-p '(font-latex-subscript-face
|
|
|
|
|
font-latex-superscript-face)))
|
|
|
|
|
;; Apply subscript and superscript highlighting only once (in case
|
|
|
|
|
;; font-latex-fontify-script is not 'multi-level) in order to prevent
|
|
|
|
|
;; the font size becoming too small. We set an empty match to do that.
|
|
|
|
|
(let ((point (point)))
|
|
|
|
|
(store-match-data (list point point point point)))
|
|
|
|
|
(when (match-end 3)
|
|
|
|
|
(let ((beg (match-beginning 3))
|
|
|
|
|
(end (TeX-find-closing-brace
|
|
|
|
|
;; Don't match groups spanning more than one line
|
|
|
|
|
;; in order to avoid visually wrong indentation in
|
|
|
|
|
;; subsequent lines.
|
|
|
|
|
nil (line-end-position))))
|
|
|
|
|
(store-match-data (if end
|
|
|
|
|
(list (match-beginning 0) end beg end)
|
|
|
|
|
(list beg beg beg beg))))))
|
|
|
|
|
t))
|
|
|
|
|
|
|
|
|
|
(defun font-latex-match-script-chars (limit)
|
|
|
|
|
"Match subscript and superscript chars up to LIMIT."
|
|
|
|
|
(catch 'found
|
|
|
|
|
(while (re-search-forward "[^_^]\\([_^]\\)" limit t)
|
|
|
|
|
(let ((pos (match-beginning 1)))
|
|
|
|
|
(when (and (font-latex-faces-present-p 'font-latex-math-face pos)
|
|
|
|
|
(not (font-latex-faces-present-p '(font-lock-constant-face
|
|
|
|
|
font-lock-builtin-face
|
|
|
|
|
font-lock-comment-face
|
|
|
|
|
font-latex-verbatim-face) pos))
|
|
|
|
|
;; Check for backslash quoting
|
|
|
|
|
(not (let ((odd nil)
|
|
|
|
|
(pos pos))
|
|
|
|
|
(while (eq (char-before pos) ?\\)
|
|
|
|
|
(setq pos (1- pos) odd (not odd)))
|
|
|
|
|
odd)))
|
|
|
|
|
(throw 'found t))))))
|
|
|
|
|
|
|
|
|
|
(defun font-latex--get-script-props (pos script-type)
|
|
|
|
|
(let* ((old-raise (or (plist-get (get-text-property pos 'display) 'raise) 0.0))
|
|
|
|
|
(new-level (1+ (or (get-text-property pos 'script-level) 0)))
|
|
|
|
|
(disp-props (copy-sequence (cl-case script-type
|
|
|
|
|
(:super (cdr font-latex-script-display))
|
|
|
|
|
(:sub (car font-latex-script-display)))))
|
|
|
|
|
(new-disp-props (let ((raise (plist-get disp-props 'raise))
|
|
|
|
|
(nl new-level))
|
|
|
|
|
(if raise
|
|
|
|
|
;; This polynom approximates that the factor
|
|
|
|
|
;; which is multiplied with raise is 1 for nl=1,
|
|
|
|
|
;; 0.8 for nl=2, 0.64 for nl=3, etc. (so always
|
|
|
|
|
;; about 80% of the previous value).
|
|
|
|
|
(plist-put disp-props 'raise
|
|
|
|
|
(+ old-raise
|
|
|
|
|
(* raise
|
|
|
|
|
(+ 1.1965254857142873
|
|
|
|
|
(* nl -0.21841226666666758)
|
|
|
|
|
(* nl nl 0.012018514285714385)))))
|
|
|
|
|
disp-props))))
|
|
|
|
|
`(face ,(if (<= new-level font-latex-fontify-script-max-level)
|
|
|
|
|
(cl-case script-type
|
|
|
|
|
(:super 'font-latex-superscript-face)
|
|
|
|
|
(:sub 'font-latex-subscript-face))
|
|
|
|
|
nil)
|
|
|
|
|
script-level ,new-level
|
|
|
|
|
display ,new-disp-props)))
|
|
|
|
|
|
|
|
|
|
;; Copy and adaption of `tex-font-lock-suscript' from tex-mode.el in
|
|
|
|
|
;; GNU Emacs on 2004-07-07.
|
|
|
|
|
(defun font-latex-script (pos)
|
|
|
|
|
"Return face and display spec for subscript and superscript content."
|
|
|
|
|
(when (and (font-latex-faces-present-p 'font-latex-math-face pos)
|
|
|
|
|
(not (font-latex-faces-present-p '(font-lock-constant-face
|
|
|
|
|
font-lock-builtin-face
|
|
|
|
|
font-lock-comment-face
|
|
|
|
|
font-latex-verbatim-face) pos))
|
|
|
|
|
;; Check for backslash quoting
|
|
|
|
|
(not (let ((odd nil)
|
|
|
|
|
(pos pos))
|
|
|
|
|
(while (eq (char-before pos) ?\\)
|
|
|
|
|
(setq pos (1- pos) odd (not odd)))
|
|
|
|
|
odd)))
|
|
|
|
|
(if (eq (char-after pos) ?_)
|
|
|
|
|
(font-latex--get-script-props pos :sub)
|
|
|
|
|
(font-latex--get-script-props pos :super))))
|
|
|
|
|
|
|
|
|
|
(defun font-latex-script-char (_pos)
|
|
|
|
|
"Return face and display spec for subscript and superscript character at POS."
|
|
|
|
|
`(face font-latex-script-char-face
|
|
|
|
|
,@(when (eq font-latex-fontify-script 'invisible)
|
|
|
|
|
'(invisible t))))
|
|
|
|
|
|
|
|
|
|
;;; docTeX
|
|
|
|
|
|
|
|
|
|
(defvar font-latex-doctex-preprocessor-face
|
|
|
|
|
'font-latex-doctex-preprocessor-face
|
|
|
|
|
"Face used to highlight preprocessor directives in docTeX mode.")
|
|
|
|
|
|
|
|
|
|
(defface font-latex-doctex-preprocessor-face
|
|
|
|
|
'((t (:inherit (font-latex-doctex-documentation-face
|
|
|
|
|
font-lock-builtin-face ; Emacs 21 does not provide
|
|
|
|
|
; the preprocessor face.
|
|
|
|
|
font-lock-preprocessor-face))))
|
|
|
|
|
"Face used to highlight preprocessor directives in docTeX mode."
|
|
|
|
|
:group 'font-latex-highlighting-faces)
|
|
|
|
|
|
|
|
|
|
(defvar font-latex-doctex-documentation-face
|
|
|
|
|
'font-latex-doctex-documentation-face
|
|
|
|
|
"Face used to highlight the documentation in docTeX mode.")
|
|
|
|
|
|
|
|
|
|
(defface font-latex-doctex-documentation-face
|
|
|
|
|
'((((class mono)) (:inverse-video t))
|
|
|
|
|
(((class grayscale) (background dark)) (:background "#333"))
|
|
|
|
|
(((class color) (background dark)) (:background "#333"))
|
|
|
|
|
(t (:background "#eeeeee")))
|
|
|
|
|
"Face used to highlight the documentation parts in docTeX mode."
|
|
|
|
|
:group 'font-latex-highlighting-faces)
|
|
|
|
|
|
|
|
|
|
(defvar font-latex-doctex-keywords
|
|
|
|
|
(append '((font-latex-doctex-match-^^A 0 font-lock-comment-face t))
|
|
|
|
|
font-latex-keywords-2
|
|
|
|
|
'(("^%<[^>]*>" (0 font-latex-doctex-preprocessor-face t)))))
|
|
|
|
|
|
|
|
|
|
(defun font-latex-doctex-match-^^A (limit)
|
|
|
|
|
"In docTeX mode, match comment started by ^^A and ^^X before LIMIT."
|
|
|
|
|
(catch 'found
|
|
|
|
|
(while (TeX-re-search-forward-unescaped "\\^\\^[AX]" limit t)
|
|
|
|
|
(when (eq (char-after (line-beginning-position)) ?\%)
|
|
|
|
|
(forward-line 1)
|
|
|
|
|
;; Adjust `font-latex--updated-region-end' if necessary.
|
|
|
|
|
(let ((p (point)))
|
|
|
|
|
(if (< font-latex--updated-region-end limit)
|
|
|
|
|
(setq font-latex--updated-region-end limit))
|
|
|
|
|
(when (< font-latex--updated-region-end p)
|
|
|
|
|
(font-lock-unfontify-region
|
|
|
|
|
font-latex--updated-region-end p)
|
|
|
|
|
(setq font-latex--updated-region-end p))
|
|
|
|
|
;; We assume that the above adjustment preserves match data.
|
|
|
|
|
(set-match-data (list (match-beginning 0) p)))
|
|
|
|
|
(throw 'found t)))))
|
|
|
|
|
|
|
|
|
|
;; Copy and adaptation of `doctex-font-lock-syntactic-face-function'
|
|
|
|
|
;; in `tex-mode.el' of CVS Emacs (March 2004)
|
|
|
|
|
(defun font-latex-doctex-syntactic-face-function (state)
|
|
|
|
|
;; Mark docTeX documentation, which is parsed as a style A comment
|
|
|
|
|
;; starting in column 0.
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(if (or (nth 3 state) (nth 7 state)
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(not (memq (char-before (nth 8 state))
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'(?\n nil))))
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;; Anything else is just as for LaTeX.
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(font-latex-syntactic-face-function state)
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font-latex-doctex-documentation-face))
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;;; Installation in non-AUCTeX LaTeX mode
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;; Here used to be some code which tried to magically make things work and
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;; thereby broke other stuff. If you want to use font-latex with stock
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;; latex-mode, then please just add `font-latex-setup' to `latex-mode-hook'
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;; yourself.
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;;; Byte-compilation of generated functions
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;; Not needed now that we generate the code via a macro.
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;; (when (byte-code-function-p
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;; (symbol-function 'font-latex-make-built-in-keywords))
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;; (dolist (elt font-latex-built-in-keyword-classes)
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;; (let ((name (nth 0 elt)))
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;; (byte-compile (intern (concat "font-latex-match-" name)))
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;; (byte-compile (intern (concat "font-latex-match-" name "-make"))))))
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;; Provide ourselves:
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(provide 'font-latex)
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;; Local Variables:
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;; coding: utf-8
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;; End:
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;;; font-latex.el ends here
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