mes/scaffold/boot/50-string-join.scm

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;;; GNU Mes --- Maxwell Equations of Software
;;; Copyright © 2018 Jan (janneke) Nieuwenhuizen <janneke@gnu.org>
;;;
;;; This file is part of GNU Mes.
;;;
;;; GNU Mes 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.
;;;
;;; GNU Mes 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 GNU Mes. If not, see <http://www.gnu.org/licenses/>.
(cond-expand
(guile)
(mes
(define (cons* . rest)
(if (null? (cdr rest)) (car rest)
(cons (car rest) (core:apply cons* (cdr rest) (current-module)))))
(define (apply f h . t)
(if (null? t) (core:apply f h (current-module))
(apply f (apply cons* (cons h t)))))
(define (append . rest)
(if (null? rest) '()
(if (null? (cdr rest)) (car rest)
(append2 (car rest) (apply append (cdr rest))))))
(define (string . lst)
(list->string lst))
(define (map1 f lst)
(if (null? lst) (list)
(cons (f (car lst)) (map1 f (cdr lst)))))
(define map map1)))
(define (string-join lst infix)
(if (null? (cdr lst)) (car lst)
(string-append (car lst) infix (string-join (cdr lst) infix))))
(if (string=? (string-join '("foo" "bar") "/") "foo/bar")
(exit 0))
(exit 1)