;;; pst-plot.el --- AUCTeX style for `pst-plot.sty'

;; Copyright (C) 2007, 2014, 2015 Free Software Foundation, Inc.

;; Author: Holger Sparr <holger.sparr@gmx.net>

;; Created: 21 Jun 2007

;; Based on: Jean-Philippe Georget's pst-plot.el

;; Keywords: latex, pstricks, auctex, emacs

;; 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 AUCTeX; see the file COPYING.  If not, write to the Free

;; Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA

;; 02110-1301, USA.

;;; Commentary:

;; This file adds support for `pst-plot.sty'.

;;; TODO:

;;

;; -- improve symbol support (especially the pstScalePoints macros)

;; -- check for multido.el necessity

;;; Code:

;; Self Parsing -- see (info "(auctex)Hacking the Parser")

(defvar LaTeX-auto-pstplot-regexp-list

  '(("\\\\\\(save\\|read\\)data{?\\(\\\\[a-zA-Z]+\\)}?"

     2 LaTeX-auto-pstplot))

  "List of regular expressions to extract arguments of \\*data

  macros.")

(defvar LaTeX-auto-pstplot nil

  "Temporary for parsing \\*data definitions.")

(defun LaTeX-pstplot-cleanup ()

  "Move symbols from `LaTeX-auto-pstplot to `TeX-auto-symbol'."

  (mapcar (lambda (symbol)

            ;; (setq TeX-symbol-list (cons (list symbol 0) TeX-symbol-list))

            ;; (setq TeX-auto-symbol (cons (list symbol 0) TeX-auto-symbol)))

            (add-to-list 'LaTeX-pstplot-datasets symbol))

            LaTeX-auto-pstplot))

(defun LaTeX-pstplot-prepare ()

  "Clear `LaTeX-auto-pstplot' before use."

  (setq LaTeX-auto-pstplot nil))

(add-hook 'TeX-auto-prepare-hook #'LaTeX-pstplot-prepare t)

(add-hook 'TeX-auto-cleanup-hook #'LaTeX-pstplot-cleanup t)

(add-hook 'TeX-update-style-hook #'TeX-auto-parse t)

;;; Parameters

(defvar LaTeX-pstplot-datasets nil

  "List of parsed data sets defined with \\savedata or \\readdata.")

(defvar LaTeX-pstplot-parameters-name-list

  '("axesstyle" "labels" "plotpoints" "plotstyle" "showorigin" "ticks"

    "ticksize" "tickstyle")

  "A list of parameters' name in pst-plot.")

(defvar LaTeX-pst-ticks-list '(t "none" "all" "x" "y")

  "A list of values for ticks in pst-plot.")

(defvaralias 'LaTeX-pst-labels-list 'LaTeX-pst-ticks-list)

(defvar LaTeX-pst-plotstyle-list

  '(t "dots" "line" "polygon" "curve" "ecurve" "ccurve")

  "A list of values for tickstyles in pst-plot.")

(defvar LaTeX-pst-tickstyle-list '(t "full" "top" "bottom")

  "A list of values for tickstyles in pst-plot.")

(defvar LaTeX-pst-axesstyle-list '(t "axes" "frame" "none")

  "A list of values for axesstyles in pst-plot.")

;;; Macros

(defun LaTeX-pst-macro-psaxes (_optional &optional _arg)

  "Return \\psaxes arguments after querying."

  (let* ((cpref (if current-prefix-arg (car current-prefix-arg) 0))

         (arrows (LaTeX-pst-arrows))

         (pnt1 (if (> cpref 4) (LaTeX-pst-point) nil))

         (pnt2 (if (> cpref 0) (LaTeX-pst-point) nil))

         (pnt3 (LaTeX-pst-point)))

    ;; Insert \psaxes arguments.

    (insert (if arrows (format "{%s}" arrows) "")

            (if pnt1 (format "(%s)" pnt1) "")

            (if pnt2 (format "(%s)" pnt2) "") "(" pnt3 ")")))

;;; Derived defuns

(defun LaTeX-pstplot-datasets-read ()

  (TeX-arg-compl-list "Datasets" LaTeX-pstplot-datasets))

;;; Hook

(TeX-add-style-hook

 "pst-plot"

 (function

  (lambda ()

    (mapc #'TeX-auto-add-regexp LaTeX-auto-pstplot-regexp-list)

    (TeX-add-symbols

     '("readdata" "Macro Name" TeX-arg-file)

     '("savedata" "Macro Name" ["Values"])

     '("dataplot" ["Options"]

       (TeX-arg-eval LaTeX-pstplot-datasets-read))

     '("fileplot" ["Options"] TeX-arg-file)

     '("listplot" ["Options"] "Values")

     '("pstScalePoints" "X-Mod" "Y-Mod")

     '("psplot" [LaTeX-pst-parameter] "xmin" "xmax" t)

     '("parametricplot" [LaTeX-pst-parameter] "xmin" "xmax" t)

     '("psaxes" [LaTeX-pst-parameters] LaTeX-pst-macro-psaxes)

     "pshlabel"

     "psvlabel")

    (TeX-run-style-hooks

     "pstricks"

     "multido")

    (unless (string-match "plotstyle"

                          LaTeX-pst-parameters-completion-regexp)

      (setq LaTeX-pst-parameters-completion-regexp

            (concat

             (substring LaTeX-pst-parameters-completion-regexp 0 -2)

             "\\|plotstyle\\|ticks\\|tickstyle\\|axesstyle\\|labels\\)")))

    (make-local-variable 'LaTeX-pst-parameters-name-list)

    (setq LaTeX-pst-parameters-name-list

          (append LaTeX-pstplot-parameters-name-list

                  LaTeX-pst-parameters-name-list))))

 LaTeX-dialect)

;;; pst-plot.el ends here