112 lines
4.0 KiB
Scheme
112 lines
4.0 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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;;; this is here to test that we can import things from other
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;;; libraries within the compiler itself.
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(library (ikarus startup)
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(export print-greeting init-library-path)
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(import (ikarus))
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(include "ikarus.config.ss")
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(define (print-greeting)
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(printf "Ikarus Scheme version ~a\n"
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(if (zero? (string-length ikarus-revision))
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ikarus-version
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(format "~a+ (revision ~a, build ~a)"
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ikarus-version
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(+ 1 (string->number ikarus-revision))
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(let-syntax ([ds (lambda (x) (date-string))])
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ds))))
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(display "Copyright (c) 2006-2008 Abdulaziz Ghuloum\n\n"))
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(define (init-library-path)
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(define (split s)
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(define (nodata i s ls)
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(cond
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[(= i (string-length s)) ls]
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[(char=? (string-ref s i) #\:) (nodata (+ i 1) s ls)]
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[else (data (+ i 1) s ls (list (string-ref s i)))]))
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(define (data i s ls ac)
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(cond
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[(= i (string-length s))
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(cons (list->string (reverse ac)) ls)]
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[(char=? (string-ref s i) #\:)
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(nodata (+ i 1) s
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(cons (list->string (reverse ac)) ls))]
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[else (data (+ i 1) s ls (cons (string-ref s i) ac))]))
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(reverse (nodata 0 s '())))
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(library-path
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(cons "."
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(append
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(split (getenv "IKARUS_LIBRARY_PATH"))
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(list ikarus-lib-dir))))
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(library-extensions
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(append
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(map (lambda (x) (string-append ".ikarus" x))
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(library-extensions))
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(library-extensions)))))
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;;; Finally, we're ready to evaluate the files and enter the cafe.
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(library (ikarus main)
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(export)
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(import (ikarus)
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(ikarus startup)
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(only (ikarus load) load-r6rs-top-level))
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(init-library-path)
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(let-values ([(files script script-type args)
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(let f ([args (command-line-arguments)])
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(cond
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[(null? args) (values '() #f #f '())]
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[(string=? (car args) "--")
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(values '() #f #f (cdr args))]
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[(string=? (car args) "--script")
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(let ([d (cdr args)])
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(cond
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[(null? d)
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(die 'ikarus "--script requires a script name")]
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[else
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(values '() (car d) 'script (cdr d))]))]
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[(string=? (car args) "--r6rs-script")
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(let ([d (cdr args)])
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(cond
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[(null? d)
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(die 'ikarus "--r6rs-script requires a script name")]
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[else
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(values '() (car d) 'r6rs-script (cdr d))]))]
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[else
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(let-values ([(f* script script-type a*) (f (cdr args))])
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(values (cons (car args) f*) script script-type a*))]))])
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(cond
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[(eq? script-type 'r6rs-script)
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(command-line-arguments (cons script args))
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(load-r6rs-top-level script)
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(exit 0)]
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[(eq? script-type 'script) ; no greeting, no cafe
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(command-line-arguments (cons script args))
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(for-each load files)
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(load script)
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(exit 0)]
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[else
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(print-greeting)
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(command-line-arguments (cons "*interactive*" args))
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(for-each load files)
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(new-cafe)
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(exit 0)])))
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