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;;; ravi-init-tex.el --- tex and friends
;; Copyright (C) 2014
;; Author: <ravi@nero.lan>
;; Keywords:
;; This program is free software; you can redistribute it and/or modify
;; it under the terms of the GNU General Public License as published by
;; the Free Software Foundation, either version 3 of the License, or
;; (at your option) any later version.
;; This program is distributed in the hope that it will be useful,
;; but WITHOUT ANY WARRANTY; without even the implied warranty of
;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
;; GNU General Public License for more details.
;; You should have received a copy of the GNU General Public License
;; along with this program. If not, see <http://www.gnu.org/licenses/>.
;;; Commentary:
;; TeX and LaTeX support
;;; Code:
(use-package tex-site
:ensure auctex
:mode ("\\.tex\\'" . TeX-latex-mode)
:commands (TeX-latex-mode
TeX-mode
tex-mode
LaTeX-mode
latex-mode)
:config
(progn
(use-package latex
:config
(progn
(use-package reftex
:defer t
:diminish reftex-mode
:ensure nil)
;; fix the "bug" in SP regexp wrap that treats ' as "word"
(modify-syntax-entry ?' ".")
(require 'smartparens-latex)
(sp-local-pair 'latex-mode "\\begin" "\\end")
(sp-local-tag 'latex-mode "\\ba" "\\begin{align*}" "\\end{align*}")
(use-package preview :ensure nil)
(use-package font-latex :ensure nil)
(fset 'tex-font-lock-subscript 'ignore)
(sp-with-modes '(tex-mode plain-tex-mode latex-mode)
(sp-local-pair "\\[" nil :post-handlers '(my-latex-math-block-indent)))
(defun my-latex-math-block-indent (a action c)
(when (eq action 'insert)
(newline-and-indent)
(save-excursion (newline))))
(defun my-latex-compile ()
(interactive)
(save-buffer)
(TeX-command "LaTeX" 'TeX-master-file nil))
(bind-key "C-M-x" 'my-latex-compile LaTeX-mode-map)
(defvar my-latex-wrap-choices '("emph"
"textsc"))
(defvar my-latex-wrap-history nil)
(defun my-latex-wrap (macro-name)
(interactive (list (ido-completing-read
"Macro> "
my-latex-wrap-choices
nil 'confirm nil my-latex-wrap-history)))
(when (use-region-p)
(let ((b (region-beginning))
(e (region-end)))
(goto-char e)
(insert "}")
(goto-char b)
(insert "\\" macro-name "{"))))
(bind-key "C-c w" 'my-latex-wrap LaTeX-mode-map)
(defun my-end-of-environment ()
(interactive)
(LaTeX-mark-environment)
(end-of-region))
(defun my-beginning-of-environment ()
(interactive)
(LaTeX-mark-environment)
(beginning-of-region)
(deactivate-mark))
(bind-key "M-n" 'my-end-of-environment LaTeX-mode-map)
(bind-key "M-p" 'my-beginning-of-environment LaTeX-mode-map)
;; Use okular rather than evince
(setq TeX-view-program-selection
'((output-dvi "Okular")
;; (output-pdf "Okular")
(output-pdf "PDF Tools")))
(defun th/pdf-view-revert-buffer-maybe (file)
(let ((buf (find-buffer-visiting file)))
(when buf
(with-current-buffer buf
(when (derived-mode-p 'pdf-view-mode)
(pdf-view-revert-buffer nil t))))))
(add-hook 'TeX-after-TeX-LaTeX-command-finished-hook
#'th/pdf-view-revert-buffer-maybe)
;; fix italian quote highlight
(push '("\"<" "\">") font-latex-quote-list)
(defun my-latex-remove-command ()
"Unwrap the expression that point is in or before, also
removing the command name. By command we understand a symbol
starting with \\ and followed by a block of text enclosed in {}."
(interactive)
(let ((ok (sp-get-enclosing-sexp)))
(cond
;; we're inside the { } block
(ok
(progn
(save-excursion
(goto-char (sp-get ok :beg))
(zap-to-char -1 ?\\ ))
(sp-splice-sexp)))
;; test if we are in looking at the command fromt he front
((looking-at "\\\\")
(zap-up-to-char 1 ?{)
(sp-unwrap-sexp))
;; otherwise we're inside the command name
(t
(zap-to-char -1 ?\\ )
(zap-up-to-char 1 ?{)
(sp-unwrap-sexp)))))
(bind-key "C-c d" 'my-latex-remove-command LaTeX-mode-map)
(bind-key "M-RET" 'LaTeX-insert-item LaTeX-mode-map)
(use-package company-math
:config
(progn
(defun ravi/company-math-setup ()
(setq-local company-backends
(append '(company-math-symbols-latex company-latex-commands)
company-backends)))
(add-hook 'TeX-mode-hook 'ravi/company-math-setup)))
(use-package latex-extra
:hook (LaTex-mode . latex-extra-mode)
:diminish latex-extra-mode)
(defun my-LaTeX-preview-math ()
(interactive)
(let ((b (save-excursion (while (texmathp) (backward-char 1)) (1- (point))))
(e (save-excursion (while (texmathp) (forward-char 1)) (point))))
(preview-region b e)))
(bind-key "C-<m-key>" 'my-LaTeX-preview-math preview-map)
(defun my-LaTeX-mode-init ()
(setq TeX-auto-save t)
(setq TeX-parse-self t)
(TeX-PDF-mode t)
(setq reftex-plug-into-AUCTeX t)
(reftex-mode t)
(TeX-fold-mode t)
(TeX-source-correlate-mode 1)
(smartparens-mode 1)
(LaTeX-add-environments
'("derivation" LaTeX-env-label))
(TeX-add-symbols '("emph" 1))
(setq fill-column 88)
(setq TeX-save-query nil)
(setq TeX-show-compilation t)
(when (functionp 'helm-dash)
(setq-local dash-docs-docsets '("LaTeX")))
(message "LaTeX mode init complete."))
;; ACUTeX replaces latex-mode-hook with LaTeX-mode-hook
(add-hook 'LaTeX-mode-hook 'my-LaTeX-mode-init)
)
:ensure nil)
)
)
(provide 'ravi-init-tex)
;;; ravi-init-tex.el ends here
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