tinmop/src/tour-mode-parser.lisp

;; tinmop: a multiprotocol client
;; Copyright © cage

;; 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/][http://www.gnu.org/licenses/]].

(in-package :tour-mode-parser)

(define-constant +-separator+ "/" :test #'string=)

(defrule tour-digit (character-ranges (#\0 #\9))
  (:text t))

(defrule tour-range-delimter #\-)

(defrule tour-list-delimiter (+ (or #\Space #\,)))

(defrule tour-number (and tour-digit (* tour-digit))
  (:text t)
  (:function parse-integer))

(defstruct range from to)

(defrule tour-range (and tour-number tour-range-delimter tour-number)
  (:function (lambda (a) (make-range :from (first a) :to (third a)))))

(defrule tour-tour-tail (? (and tour-list-delimiter tour-tour))
  (:function rest))

(defrule tour-tour (and (or tour-range tour-number) tour-tour-tail)
  (:function flatten))

(defun parse-tour-mode (data)
  (parse 'tour-tour data))