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Isolated

A isolated environment for Common Lisp code evaluation

Introduction

Common Lisp expressions are evaluated in a isolated environment which provides a subset of Common Lisp's features. In general, many features related to symbols, packages and operating system have been disabled. Some standard functions and macros have been replaced with safer versions. The isolated is implemented in packages ISOLATED-IMPL and ISOLATED-CL. Function isolated:read-eval-print is the interface for isolated code evaluation.

Variable isolated:*env* is the name of the isolated package used for evaluation. Use function isolated:reset to reset the package.

Getting started

CL-USER> (ql:quickload "isolated")
CL-USER> (isolated:read-eval-print "(princ-to-string '(hello world))")
=> "(HELLO WORLD)"
CL-USER> (isolated:read-eval-print "(load \"~/quicklisp.lisp\")")
;; DISABLED-FEATURE: The feature LOAD is disabled.
NIL

Disabled symbols

To find the list of disabled symbols/features

(loop :for symbol :being :the :symbol :in (find-package :isolated-cl)
      :when (get symbol :isolated-locked)
        :collect symbol)

The source code

GitHub repository: https://github.com/kanru/cl-isolated

Copyright and license

Copyright (C) 2014, 2020 Kan-Ru Chen <kanru@kanru.info>
Copyright (C) 2012-2013 Teemu Likonen <tlikonen@iki.fi>

This program is free software: you can redistribute it and/or modify it under the terms of the GNU Affero 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 Affero General Public License for more details.

You should have received a copy of the GNU Affero General Public License along with this program. If not, see <http://www.gnu.org/licenses/agpl.html>.

Acknowledgment

This library was forked from Teemu Likonen's cl-eval-bot project. See https://github.com/tlikonen/cl-eval-bot for details.

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A restricted environment for Common Lisp code evaluation

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