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;;; pak.el --- resource data interchange format for elisp and CL
;; Copyright (C) 2008 David O'Toole
;; Author: David O'Toole <dto@gnu.org>
;; Keywords: lisp, data, tools
;; 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:
;; TODO Read/write pak files
;; TODO Generate pak index of a directory?
;; TODO Emacs tree widget view of mod resources?
;; TODO import resources by making .pak files for existing media automatically
;;; Code:
;; See pak.lisp for more information.
(defstruct pak-resource
name type notes file data client-data)
(defun pak-resource-to-plist (res)
(list :name (pak-resource-name res)
:type (pak-resource-type res)
:notes (pak-resource-notes res)
:file (pak-resource-file res)
:data (pak-resource-data res)))
(defun pak-write-sexp-to-file (filename sexp)
(with-temp-buffer
(insert (format "%S" sexp))
(write-file filename)))
(defun pak-read-sexp-from-file (filename)
(with-temp-buffer
(insert-file-contents filename)
(goto-char (point-min))
(read (current-buffer))))
(defun pak-write (filename resources)
(pak-write-sexp-to-file (mapcar #'pak-resource-to-plist resources) filename))
(defun pak-read (filename)
(mapcar #'make-pak-resource (pak-read-sexp-from-file filename)))
(defun pak-read-table (filename)
(let ((table (make-hash-table :test 'equal)))
(prog1 table
(dolist (res (pak-read filename))
(setf (gethash (pak-resource-name res) table)
res)))))
(defun pak-write-table (filename table)
(let (resources)
(maphash #'(lambda (k v)
(declare (ignore k))
(push v resources))
table)
(pak-write filename resources)))
(provide 'pak)
;;; pak.el ends here
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