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;;; km-tex.el --- TeX extensions
;; Copyright (C) 2012-2016 Kyle Meyer <kyle@kyleam.com>
;; Author: Kyle Meyer <kyle@kyleam.com>
;; URL: https://github.com/kyleam/emacs.d
;; 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/>.
;;; Code:
(require 'tex)
(require 'latex)
(defun km/latex-imenu-create-index-function ()
;; See `LaTeX-imenu-create-index-function'.
(TeX-update-style)
(let ((sec-re (LaTeX-outline-regexp))
(short-re (rx (zero-or-one "*")
"[" (group (zero-or-more (not (any "]")))) "]"))
(title-re (rx (zero-or-one "*")
"{" (group (zero-or-more (not (any "}"))))))
entries)
(goto-char (point-min))
(while (re-search-forward sec-re nil t)
(let ((sec (replace-regexp-in-string
"\\\\" "" (match-string-no-properties 0)))
(title (and (or (looking-at short-re)
(looking-at title-re))
(replace-regexp-in-string
"\\s-\\s-+" " "
(replace-regexp-in-string
"\n" "" (match-string-no-properties 1))))))
(when (> (length title) 45)
(setf (substring title 21 -21) "..."))
(when (> (length title) 0)
(push (cons (if title (format "%s (%s)" title sec) sec)
(save-excursion (beginning-of-line) (point-marker)))
entries))))
(nreverse entries)))
(provide 'km-tex)
;;; km-tex.el ends here
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