;; -*- mode: common-lisp -*-
#|
clasm-6502: An assembler for the 6502 written in Common Lisp.
Copyright (C) 2024  Aleksei Eaves

This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.

This library 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
Lesser General Public License for more details.

You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
|#

(defun attributes-list (program-list)
  "Grab a progams attributes."
  (let ((get-attribute-list nil))
	(dolist (i program-list)
	  (if (eq (syntax-rule (cadr i) *line-syntax*) 'attribute)
		  (setf get-attribute-list
				(cons (cadr i)
					  get-attribute-list))))
	get-attribute-list))

(defun attributes-remove (program-list)
  "Remove a progams attributes."
  (let ((return-list nil))
	(dolist (i program-list)
	  (if (not (eq (syntax-rule (cadr i) *line-syntax*) 'attribute))
		  (setf return-list
				(cons i
					  return-list))))
	(reverse return-list)))