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8a19f60386
- Reorder README to have implementation list after "learning tool" bullet. - This also moves tests/ and libs/ into impls. It would be preferrable to have these directories at the top level. However, this causes difficulties with the wasm implementations which need pre-open directories and have trouble with paths starting with "../../". So in lieu of that, symlink those directories to the top-level. - Move the run_argv_test.sh script into the tests directory for general hygiene.
43 lines
1.3 KiB
Scheme
43 lines
1.3 KiB
Scheme
;; Copyright (C) 2015
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;; "Mu Lei" known as "NalaGinrut" <NalaGinrut@gmail.com>
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;; This file is free software: you can redistribute it and/or modify
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;; it 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
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;; (at your option) any later version.
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;; This file 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
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;; GNU General Public License for more details.
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;; You should have received a copy of the GNU General Public License
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;; along with this program. If not, see <http://www.gnu.org/licenses/>.
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(import (readline) (reader) (printer))
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(define (READ str)
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(read_str str))
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(define (EVAL ast env) ast)
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(define (PRINT exp)
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(and (not (eof-object? exp))
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(format #t "~a~%" (pr_str exp #t))))
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(define (LOOP continue?)
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(and continue? (REPL)))
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(define (REPL)
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(LOOP
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(let ((line (_readline "user> ")))
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(cond
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((eof-object? line) #f)
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((string=? line "") #t)
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(else
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(catch 'mal-error
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(lambda () (PRINT (EVAL (READ line) '())))
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(lambda (k . e)
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(format #t "Error: ~a~%" (pr_str (car e) #t)))))))))
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(REPL)
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