epics-template.el

;; Copyright 2016 Mauro Faria
;;
;; 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/>.

(defvar epics-template-mode-syntax-table nil)
(defvar epics-template-mode-highlights nil)
(defvar device--types '())

(defun find-devices-in-buffer ()
  ;; Search for macros
  (goto-char (point-min))
  (let ((devices '()))
    (progn
      (while (re-search-forward
              "device([[:alnum:]]+,[[:alnum:]_]+,[[:alnum:]_]+,\"\\([[:alnum:] /]+\\)\"")
        (add-to-list 'devices (match-string-no-properties 1)))
      devices)))

(defun get-device-types (file)
  (message file)
  (with-temp-buffer
    (insert-file-contents file)
    (goto-char 1)
    (message "getting device types")
    (find-devices-in-buffer)))

(defun template-get-device-types (dbd-path)
  (interactive "fSelect dbd file: ")
  (setq-local device--types
              (get-device-types dbd-path)))

(defun template-set-device-types ()
  (interactive)
  (if (not device--types)
      (call-interactively 'template-get-device-types))

  (completing-read "Select a device DTYP: "
                                    device--types))
  



(setq epics-template-mode-syntax-table
      (let ((synTable (make-syntax-table)))
        ;; bash style comment: “# …”
        (modify-syntax-entry ?# "< b" synTable)
        (modify-syntax-entry ?\n "> b" synTable)
        (modify-syntax-entry ?$ "'" synTable)
        synTable))

(setq epics-template-mode-highlights
      '(
        ;;matches $() or ${} style macros
        ("\\(\\$([a-zA-Z0-9.=_-]+)\\)\\|\\(\\${[a-zA-Z0-9.=_-]+}\\)" 0 font-lock-variable-name-face t)
        ("field" . font-lock-keyword-face)
        ("record" . font-lock-function-name-face)
        ))

;;;###autoload
(define-derived-mode epics-template-mode fundamental-mode "template"
  (setq font-lock-defaults '(epics-template-mode-highlights)))

(provide 'epics-template)