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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
:ensure auctex
:commands (TeX-mode)
:config
(setq TeX-auto-save t)
(setq TeX-parse-self t)
(setq-default TeX-master nil)
(setq TeX-save-query nil)
(setq TeX-show-compilation t)
(defun ravi/tex-common-hook ()
(prettify-symbols-mode 1)
(TeX-PDF-mode t)
(TeX-fold-mode t)
(TeX-source-correlate-mode 1))
(use-package company-math)
(use-package company-auctex)
:hook (TeX-mode-hook . ravi/tex-common-hook))
(use-package latex
:ensure auctex
:mode ("\\.tex\\'" . latex-mode)
:hook ((LaTeX-mode-hook . ravi/latex-init))
:bind (:map LaTeX-mode-map
("C-S-e" . karthinks/latex-math-from-calc))
:defer t
:config
;; Format math as a Latex string with Calc
(defun karthinks/latex-math-from-calc ()
"Evaluate `calc' on the contents of line at point."
(interactive)
(cond ((region-active-p)
(let* ((beg (region-beginning))
(end (region-end))
(string (buffer-substring-no-properties beg end)))
(kill-region beg end)
(insert (calc-eval `(,string calc-language latex
calc-prefer-frac t
calc-angle-mode rad)))))
(t (let ((l (thing-at-point 'line)))
(end-of-line 1) (kill-line 0)
(insert (calc-eval `(,l
calc-language latex
calc-prefer-frac t
calc-angle-mode rad)))))))
(defun ravi/latex-init ()
(setq fill-column 88)
(when (functionp 'helm-dash) (setq-local dash-docs-docsets '("LaTeX")))
(when (functionp 'consult-dash) (setq-local consult-dash-docsets '("LaTeX"))))
)
(use-package preview
:ensure auctex
:hook ((LaTeX-mode-hook . karthinks/preview-larger-previews))
:config
(defun karthinks/preview-larger-previews ()
(setq preview-scale-function
(lambda () (* 1.25
(funcall (preview-scale-from-face)))))))
(use-package cdlatex
:ensure t
:hook (LaTeX-mode-hook . turn-on-cdlatex)
:bind (:map cdlatex-mode-map
("<tab>" . cdlatex-tab)))
;; All lazytab functions from https://karthinks.com/software/latex-input-for-impatient-scholars/
(use-package org-table
:ensure nil
:after cdlatex
:bind (:map orgtbl-mode-map
("<tab>" . lazytab-org-table-next-field-maybe)
("TAB" . lazytab-org-table-next-field-maybe))
:hook ((cdlatex-tab-hook . lazytab-cdlatex-or-orgtbl-next-field))
:init
;; (add-hook 'cdlatex-tab-hook 'lazytab-cdlatex-or-orgtbl-next-field 90)
;; Tabular environments using cdlatex
(add-to-list 'cdlatex-command-alist '("smat" "Insert smallmatrix env"
"\\left( \\begin{smallmatrix} ? \\end{smallmatrix} \\right)"
lazytab-position-cursor-and-edit
nil nil t))
(add-to-list 'cdlatex-command-alist '("bmat" "Insert bmatrix env"
"\\begin{bmatrix} ? \\end{bmatrix}"
lazytab-position-cursor-and-edit
nil nil t))
(add-to-list 'cdlatex-command-alist '("pmat" "Insert pmatrix env"
"\\begin{pmatrix} ? \\end{pmatrix}"
lazytab-position-cursor-and-edit
nil nil t))
(add-to-list 'cdlatex-command-alist '("tbl" "Insert table"
"\\begin{table}\n\\centering ? \\caption{}\n\\end{table}\n"
lazytab-position-cursor-and-edit
nil t nil))
:config
;; Tab handling in org tables
(defun lazytab-position-cursor-and-edit ()
;; (if (search-backward "\?" (- (point) 100) t)
;; (delete-char 1))
(cdlatex-position-cursor)
(lazytab-orgtbl-edit))
(defun lazytab-orgtbl-edit ()
(advice-add 'orgtbl-ctrl-c-ctrl-c :after #'lazytab-orgtbl-replace)
(orgtbl-mode 1)
(open-line 1)
(insert "\n|"))
(defun lazytab-orgtbl-replace (_)
(interactive "P")
(unless (org-at-table-p) (user-error "Not at a table"))
(let* ((table (org-table-to-lisp))
params
(replacement-table
(if (texmathp)
(lazytab-orgtbl-to-amsmath table params)
(orgtbl-to-latex table params))))
(kill-region (org-table-begin) (org-table-end))
(open-line 1)
(push-mark)
(insert replacement-table)
(align-regexp (region-beginning) (region-end) "\\([:space:]*\\)& ")
(orgtbl-mode -1)
(advice-remove 'orgtbl-ctrl-c-ctrl-c #'lazytab-orgtbl-replace)))
(defun lazytab-orgtbl-to-amsmath (table params)
(orgtbl-to-generic
table
(org-combine-plists
'(:splice t
:lstart ""
:lend " \\\\"
:sep " & "
:hline nil
:llend "")
params)))
(defun lazytab-cdlatex-or-orgtbl-next-field ()
(when (and (bound-and-true-p orgtbl-mode)
(org-table-p)
(looking-at "[[:space:]]*\\(?:|\\|$\\)")
(let ((s (thing-at-point 'sexp)))
(not (and s (assoc s cdlatex-command-alist-comb)))))
(call-interactively #'org-table-next-field)
t))
(defun lazytab-org-table-next-field-maybe ()
(interactive)
(if (bound-and-true-p cdlatex-mode)
(cdlatex-tab)
(org-table-next-field))))
(use-package latex-extra
:hook (LaTeX-mode-hook . latex-extra-mode)
:diminish latex-extra-mode)
(use-package reftex
:hook ((LaTeX-mode-hook . turn-on-reftex))
:config
(setq reftex-plug-into-AUCTeX t)
(use-package company-reftex))
(provide 'ravi-init-tex)
;;; ravi-init-tex.el ends here
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