gash/gash/util.scm

53 lines
1.6 KiB
Scheme

;;; Gash --- Guile As SHell
;;; Copyright © 2016,2017,2018 R.E.W. van Beusekom <rutger.van.beusekom@gmail.com>
;;; Copyright © 2018 Jan (janneke) Nieuwenhuizen <janneke@gnu.org>
;;;
;;; This file is part of Gash.
;;;
;;; Gash 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.
;;;
;;; Gash 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 Gash. If not, see <http://www.gnu.org/licenses/>.
(define-module (gash util)
#:use-module (srfi srfi-1)
#:use-module (srfi srfi-26)
#:export (
conjoin
disjoin
wrap-command
char->string
string->string-list
string-replace-string
))
(define (disjoin . predicates)
(lambda (. arguments)
(any (cut apply <> arguments) predicates)))
(define (conjoin . predicates)
(lambda (. arguments)
(every (cut apply <> arguments) predicates)))
(define (string->string-list string)
(map char->string (string->list string)))
(define (char->string c)
(make-string 1 c))
(define (string-replace-string string from to)
(cond ((string-contains string from)
=>
(lambda (i)
(string-replace string to i (+ i (string-length from)))))
(else string)))