78 lines
2.1 KiB
Scheme
78 lines
2.1 KiB
Scheme
;;; GNU Mes --- Maxwell Equations of Software
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;;; Copyright © 2016,2017,2018 Jan (janneke) Nieuwenhuizen <janneke@gnu.org>
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;;;
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;;; This file is part of GNU Mes.
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;;;
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;;; GNU Mes is free software; you can redistribute it and/or modify it
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;;; under the terms of the GNU General Public License as published by
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;;; the Free Software Foundation; either version 3 of the License, or (at
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;;; your option) any later version.
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;;;
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;;; GNU Mes is distributed in the hope that it will be useful, but
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;;; WITHOUT ANY WARRANTY; without even the implied warranty of
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;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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;;; GNU General Public License for more details.
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;;;
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;;; You should have received a copy of the GNU General Public License
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;;; along with GNU Mes. If not, see <http://www.gnu.org/licenses/>.
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(define-module (mes misc)
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#:use-module (srfi srfi-1)
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#:export (%scheme
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disjoin
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guile?
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mes?
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pk
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pke
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warn
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stderr
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string-substitute))
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(cond-expand
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(mes
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(define %scheme "mes"))
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(guile
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(define %scheme "guile")))
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(define guile? (equal? %scheme "guile"))
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(define mes? (equal? %scheme "mes"))
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(define (logf port string . rest)
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(apply format (cons* port string rest))
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(force-output port)
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#t)
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(define (stderr string . rest)
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(apply logf (cons* (current-error-port) string rest)))
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(define (pk . stuff)
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(newline)
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(display ";;; ")
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(write stuff)
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(newline)
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(car (last-pair stuff)))
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(define (pke . stuff)
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(display "\n" (current-error-port))
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(newline (current-error-port))
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(display ";;; " (current-error-port))
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(write stuff (current-error-port))
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(display "\n" (current-error-port))
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(car (last-pair stuff)))
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(define warn pke)
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(define (disjoin . predicates)
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(lambda (. arguments)
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(any (lambda (o) (apply o arguments)) predicates)))
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(define (string-substitute string find replace)
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(let ((index (string-contains string find)))
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(if (not index) string
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(string-append
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(string-take string index)
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replace
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(string-substitute
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(string-drop string (+ index (string-length find)))
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find replace)))))
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