65 lines
2.2 KiB
Scheme
65 lines
2.2 KiB
Scheme
;;; Ikarus Scheme -- A compiler for R6RS Scheme.
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;;; Copyright (C) 2006,2007,2008 Abdulaziz Ghuloum
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;;;
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;;; This program is free software: you can redistribute it and/or modify
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;;; it under the terms of the GNU General Public License version 3 as
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;;; published by the Free Software Foundation.
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;;;
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;;; This program 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 GNU
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;;; 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 this program. If not, see <http://www.gnu.org/licenses/>.
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(library (ikarus load)
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(export load load-r6rs-top-level)
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(import
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(except (ikarus) load)
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(only (psyntax expander) eval-top-level eval-r6rs-top-level)
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(only (ikarus reader) read-initial))
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(define load-handler
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(lambda (x)
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(eval-top-level x)))
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(define read-and-eval
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(lambda (p eval-proc)
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(let ([x (read p)])
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(unless (eof-object? x)
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(eval-proc x)
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(read-and-eval p eval-proc)))))
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(define load
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(case-lambda
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[(x) (load x load-handler)]
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[(x eval-proc)
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(unless (string? x)
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(die 'load "not a string" x))
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(unless (procedure? eval-proc)
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(die 'load "not a procedure" eval-proc))
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(let ([p (open-input-file x)])
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(let ([x (read-initial p)])
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(unless (eof-object? x)
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(eval-proc x)
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(read-and-eval p eval-proc)))
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(close-input-port p))]))
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(define load-r6rs-top-level
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(lambda (x)
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(define (read-file)
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(let ([p (open-input-file x)])
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(let ([x (read-script-annotated p)])
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(if (eof-object? x)
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(begin (close-input-port p) '())
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(cons x
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(let f ()
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(let ([x (read-annotated p)])
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(cond
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[(eof-object? x)
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(close-input-port p)
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'()]
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[else (cons x (f))]))))))))
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(let ([prog (read-file)])
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(eval-r6rs-top-level prog))))
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)
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