;;; imakeidx.el --- AUCTeX style for `imakeidx.sty'.  -*- lexical-binding: t; -*-

;; Copyright (C) 2012-2023 Free Software Foundation, Inc.

;; Maintainer: auctex-devel@gnu.org
;; Author: Mosè Giordano <giordano.mose@libero.it>
;; Keywords: tex

;; This file is part of AUCTeX.

;; AUCTeX 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, or (at your option) any
;; later version.

;; AUCTeX 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 <https://www.gnu.org/licenses/>.

;;; Commentary:

;; This file adds support for `imakeidx.sty'.

;;; Code:

;; Silence the compiler:
(declare-function font-latex-add-keywords
                  "font-latex"
                  (keywords class))

(require 'tex)
(require 'latex)

(defvar LaTeX-imakeidx-makeindex-options
  '(("name")
    ("title")
    ("program" ("makeindex" "xindy" "texindy" "truexindy"))
    ("options")
    ("noautomatic" ("true" "false"))
    ("intoc" ("true" "false"))
    ("columns")
    ("columnsep")
    ("columnseprule" ("true" "false")))
  "Key=value options for makeindex macro of the imakeidx package.")

(defvar-local LaTeX-imakeidx-indexsetup-options
    '(("level")
      ("toclevel")
      ("noclearpage" ("true" "false"))
      ("othercode"))
  "Key=value options for indexsetup macro of the imakeidx package.")

(TeX-add-style-hook
 "imakeidx"
 (lambda ()
   ;; `firstpagestyle' and `headers' options for `indexsetup' macro are
   ;; available only if `fancyhdr' is not loaded.  The following code works only
   ;; if `imakeidx' is loaded after `fancyhdr'.
   (unless (member "fancyhdr" TeX-active-styles)
     (setq LaTeX-imakeidx-indexsetup-options
           (append LaTeX-imakeidx-indexsetup-options
                   `(("firstpagestyle" ,(LaTeX-pagestyle-list)))
                   '(("headers")))))

   (TeX-add-symbols
    '("makeindex" [TeX-arg-key-val LaTeX-imakeidx-makeindex-options])
    '("indexsetup" (TeX-arg-key-val LaTeX-imakeidx-indexsetup-options))
    '("splitindexoptions" "Command line option")
    '("index" [ "Index name" ] TeX-arg-index)
    '("indexprologue" [ "Spacing" ] "Text")
    '("printindex" [ "Index name" ])
    '("seealso" 2)
    '("see" 2)
    "seename"
    "alsoname"
    "indexname")

   (TeX-run-style-hooks
    "multicol"
    "xpatch"
    "pdftexcmds"
    "ifluatex"
    "ifxetex"
    "xkeyval")

   ;; Completion for the |see macro and RefTeX support taken from
   ;; `makeidx.el'
   (setq TeX-complete-list
         (append
          '(("|see{\\([^{}\n\r]*\\)" 1 LaTeX-index-entry-list))
          TeX-complete-list))
   (and (fboundp 'reftex-add-index-macros)
        (reftex-add-index-macros '(default)))

   ;; Fontification
   (when (and (featurep 'font-latex)
              (eq TeX-install-font-lock 'font-latex-setup))
     (font-latex-add-keywords '(("makeindex"         "[")
                                ("indexsetup"        "{")
                                ("splitindexoptions" "{")
                                ("indexprologue"     "[{")
                                ("printindex"        "["))
                              'function)
     (font-latex-add-keywords '(("index" "[{"))
                              'reference)))
 TeX-dialect)

(defvar LaTeX-imakeidx-package-options
  '("makeindex" "xindy" "texindy" "truexindy" "noautomatic" "nonewpage" "quiet"
    "original" "splitindex")
  "Package options for the imakeidx package.")

;;; imakeidx.el ends here
