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44 lines
1.6 KiB
Scheme
44 lines
1.6 KiB
Scheme
;;; srfi-98.scm --- An interface to access environment variables
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;; Copyright (C) 2009 Free Software Foundation, Inc.
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;;
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;; This library is free software; you can redistribute it and/or
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;; modify it under the terms of the GNU Lesser General Public
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;; License as published by the Free Software Foundation; either
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;; version 3 of the License, or (at your option) any later version.
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;;
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;; This library is distributed in the hope that it will be useful,
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;; but WITHOUT ANY WARRANTY; without even the implied warranty of
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;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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;; Lesser General Public License for more details.
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;;
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;; You should have received a copy of the GNU Lesser General Public
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;; License along with this library; if not, write to the Free Software
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;; Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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;;; Author: Julian Graham <julian.graham@aya.yale.edu>
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;;; Date: 2009-05-26
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;;; Commentary:
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;; This is an implementation of SRFI-98 (An interface to access environment
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;; variables).
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;;
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;; This module is fully documented in the Guile Reference Manual.
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;;; Code:
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(define-module (srfi srfi-98)
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:use-module (srfi srfi-1)
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:export (get-environment-variable
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get-environment-variables))
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(cond-expand-provide (current-module) '(srfi-98))
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(define get-environment-variable getenv)
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(define (get-environment-variables)
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(define (string->alist-entry str)
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(let ((pvt (string-index str #\=))
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(len (string-length str)))
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(and pvt (cons (substring str 0 pvt) (substring str (+ pvt 1) len)))))
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(filter-map string->alist-entry (environ)))
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