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Diffstat (limited to 's48-0_57.init')
-rw-r--r-- | s48-0_57.init | 412 |
1 files changed, 0 insertions, 412 deletions
diff --git a/s48-0_57.init b/s48-0_57.init deleted file mode 100644 index 672d559..0000000 --- a/s48-0_57.init +++ /dev/null @@ -1,412 +0,0 @@ -;;;"scheme48.init" Initialisation for SLIB for Scheme48-0.57 -*-scheme-*- -;;; Author: Aubrey Jaffer -;;; -;;; This code is in the public domain. - -,batch on -,load-package floatnums -,config -,load =scheme48/misc/packages.scm -(define-structure slib-primitives - (export s48-getenv - s48-system - s48-current-error-port - s48-force-output - s48-with-handler - s48-ascii->char - s48-error) - (open scheme signals ascii extended-ports i/o primitives handle - posix c-system-function) - (begin - (define s48-getenv lookup-environment-variable) - (define s48-system system) - (define s48-current-error-port current-error-port) - (define s48-force-output force-output) - (define s48-with-handler with-handler) - (define s48-ascii->char ascii->char) - (define s48-error error))) -,user -,open slib-primitives - -(define getenv s48-getenv) -(define system s48-system) - -;;; (software-type) should be set to the generic operating system type. -;;; UNIX, VMS, MACOS, AMIGA and MS-DOS are supported. -(define (software-type) 'UNIX) - -;;; (scheme-implementation-type) should return the name of the scheme -;;; implementation loading this file. -(define (scheme-implementation-type) 'Scheme48) - -;;; (scheme-implementation-home-page) should return a (string) URI -;;; (Uniform Resource Identifier) for this scheme implementation's home -;;; page; or false if there isn't one. -(define (scheme-implementation-home-page) "http://s48.org/") - -;;; (scheme-implementation-version) should return a string describing -;;; the version of the scheme implementation loading this file. -(define scheme-implementation-version - (let ((version (getenv "S48_VERSION"))) - (lambda () version))) - -;;; (implementation-vicinity) should be defined to be the pathname of -;;; the directory where any auxiliary files to your Scheme -;;; implementation reside. -(define implementation-vicinity - (let ((vic (getenv "S48_VICINITY"))) - (lambda () vic))) - -;;; (library-vicinity) should be defined to be the pathname of the -;;; directory where files of Scheme library functions reside. -(define library-vicinity - (let ((vic (getenv "SCHEME_LIBRARY_PATH"))) - (lambda () vic))) - -;;; (home-vicinity) should return the vicinity of the user's HOME -;;; directory, the directory which typically contains files which -;;; customize a computer environment for a user. -;;; -;;; Ivan Shmakov points out that evaluating (getenv "HOME") when -;;; compiling captures the installer's home directory. So delay until -;;; HOME-VICINITY is called. -(define (home-vicinity) - (let ((home (getenv "HOME"))) - (and home - (if (eqv? #\/ (string-ref home (+ -1 (string-length home)))) - home - (string-append home "/"))))) - -;;; *FEATURES* should be set to a list of symbols describing features -;;; of this implementation. See Template.scm for the list of feature -;;; names. -(define *features* - '( - source ;can load scheme source files - ;(slib:load-source "filename") -; compiled ;can load compiled files - ;(slib:load-compiled "filename") - - ;; Scheme report features - - r5rs ;conforms to - eval ;R5RS two-argument eval - values ;R5RS multiple values - dynamic-wind ;R5RS dynamic-wind - macro ;R5RS high level macros - delay ;has DELAY and FORCE - multiarg-apply ;APPLY can take more than 2 args. - char-ready? - rationalize - rev4-optional-procedures ;LIST-TAIL, STRING->LIST, - ;LIST->STRING, STRING-COPY, - ;STRING-FILL!, LIST->VECTOR, - ;VECTOR->LIST, and VECTOR-FILL! - - r4rs ;conforms to - - ieee-p1178 ;conforms to - -; r3rs ;conforms to - -; rev2-procedures ;SUBSTRING-MOVE-LEFT!, - ;SUBSTRING-MOVE-RIGHT!, - ;SUBSTRING-FILL!, - ;STRING-NULL?, APPEND!, 1+, - ;-1+, <?, <=?, =?, >?, >=? -; object-hash ;has OBJECT-HASH - -; multiarg/and- ;/ and - can take more than 2 args. - with-file ;has WITH-INPUT-FROM-FILE and - ;WITH-OUTPUT-TO-FILE -; transcript ;TRANSCRIPT-ON and TRANSCRIPT-OFF -; ieee-floating-point ;conforms to IEEE Standard 754-1985 - ;IEEE Standard for Binary - ;Floating-Point Arithmetic. - full-continuation ;can return multiple times - - ;; Other common features - -; srfi ;srfi-0, COND-EXPAND finds all srfi-* -; sicp ;runs code from Structure and - ;Interpretation of Computer - ;Programs by Abelson and Sussman. - defmacro ;has Common Lisp DEFMACRO -; record ;has user defined data structures -; string-port ;has CALL-WITH-INPUT-STRING and - ;CALL-WITH-OUTPUT-STRING -; sort -; pretty-print -; object->string -; format ;Common-lisp output formatting -; trace ;has macros: TRACE and UNTRACE -; compiler ;has (COMPILER) -; ed ;(ED) is editor - system ;posix (system <string>) - getenv ;posix (getenv <string>) -; program-arguments ;returns list of strings (argv) -; current-time ;returns time in seconds since 1/1/1970 - ;; Implementation Specific features - )) - -;;; (OUTPUT-PORT-WIDTH <port>) -(define (output-port-width . arg) 79) - -;;; (OUTPUT-PORT-HEIGHT <port>) -(define (output-port-height . arg) 24) - -;;; (CURRENT-ERROR-PORT) -(define current-error-port s48-current-error-port) - -;;; (TMPNAM) makes a temporary file name. -(define tmpnam - (let ((cntr 100)) - (lambda () (set! cntr (+ 1 cntr)) - (let ((tmp (string-append "slib_" (number->string cntr)))) - (if (file-exists? tmp) (tmpnam) tmp))))) - -;;; (FILE-EXISTS? <string>) -(define (file-exists? f) - (call-with-current-continuation - (lambda (k) - (s48-with-handler - (lambda (condition decline) - (k #f)) - (lambda () - (close-input-port (open-input-file f)) - #t))))) - -;;; (DELETE-FILE <string>) -(define (delete-file file-name) - (system (string-append "rm " file-name))) - -;;; FORCE-OUTPUT flushes any pending output on optional arg output port -;;; use this definition if your system doesn't have such a procedure. -(define (force-output . arg) - (s48-force-output - (if (null? arg) (current-output-port) (car arg)))) - -(define (make-exchanger obj) - (lambda (rep) (let ((old obj)) (set! obj rep) old))) -(define (open-file filename modes) - (case modes - ((r rb) (open-input-file filename)) - ((w wb) (open-output-file filename)) - (else (slib:error 'open-file 'mode? modes)))) -(define (port? obj) (or (input-port? port) (output-port? port))) -(define (call-with-open-ports . ports) - (define proc (car ports)) - (cond ((procedure? proc) (set! ports (cdr ports))) - (else (set! ports (reverse ports)) - (set! proc (car ports)) - (set! ports (reverse (cdr ports))))) - (let ((ans (apply proc ports))) - (for-each close-port ports) - ans)) -(define (close-port port) - (cond ((input-port? port) - (close-input-port port) - (if (output-port? port) (close-output-port port))) - ((output-port? port) (close-output-port port)) - (else (slib:error 'close-port 'port? port)))) - -(define (browse-url url) - (define (try cmd) (eqv? 0 (system (sprintf #f cmd url)))) - (or (try "netscape-remote -remote 'openURL(%s)'") - (try "netscape -remote 'openURL(%s)'") - (try "netscape '%s'&") - (try "netscape '%s'"))) - -;;; "rationalize" adjunct procedures. -(define (find-ratio x e) - (let ((rat (rationalize x e))) - (list (numerator rat) (denominator rat)))) -(define (find-ratio-between x y) - (find-ratio (/ (+ x y) 2) (/ (- x y) 2))) - -;;; CHAR-CODE-LIMIT is one greater than the largest integer which can -;;; be returned by CHAR->INTEGER. -(define integer->char s48-ascii->char) -(define char->integer - (let ((char->integer char->integer) - (code0 (char->integer (integer->char 0)))) - (lambda (char) (- (char->integer char) code0)))) -(define char-code-limit 256) - -;;; Workaround MODULO bug -(define modulo - (let ((modulo modulo)) - (lambda (n1 n2) - (let ((ans (modulo n1 n2))) - (if (= ans n2) (- ans ans) ans))))) - -;;; Workaround atan bug -(define two-arg:atan atan) -(define (atan y . x) - (if (null? x) (two-arg:atan y 1) (two-arg:atan y (car x)))) - -;;; Workaround inexact->exact and exact->inexact bugs. -(define inexact->exact - (let ((i->e inexact->exact)) - (lambda (z) - (if (exact? z) z (i->e z))))) -(define exact->inexact - (let ((e->i exact->inexact)) - (lambda (z) - (if (inexact? z) z (e->i z))))) - -;;; MOST-POSITIVE-FIXNUM is used in modular.scm -(define most-positive-fixnum #x1FFFFFFF) - -;;; Return argument -(define identity values) - -;;; SLIB:EVAL is single argument eval using the top-level (user) environment. -(define slib:eval - (let ((eval eval) - (interaction-environment interaction-environment)) - (lambda (form) - (eval form (interaction-environment))))) - -;;; If your implementation provides R4RS macros: -(define macro:eval slib:eval) -(define (macro:load <pathname>) - (if (not (file-exists? <pathname>)) - (set! <pathname> (string-append <pathname> (scheme-file-suffix)))) - (load <pathname>)) - -(define *defmacros* - (list (cons 'defmacro - (lambda (name parms . body) - `(set! *defmacros* (cons (cons ',name (lambda ,parms ,@body)) - *defmacros*)))))) -(define (defmacro? m) (and (assq m *defmacros*) #t)) - -(define (macroexpand-1 e) - (if (pair? e) - (let ((a (car e))) - (cond ((symbol? a) (set! a (assq a *defmacros*)) - (if a (apply (cdr a) (cdr e)) e)) - (else e))) - e)) - -(define (macroexpand e) - (if (pair? e) - (let ((a (car e))) - (cond ((symbol? a) - (set! a (assq a *defmacros*)) - (if a (macroexpand (apply (cdr a) (cdr e))) e)) - (else e))) - e)) - -(define gentemp - (let ((*gensym-counter* -1)) - (lambda () - (set! *gensym-counter* (+ *gensym-counter* 1)) - (string->symbol - (string-append "slib:G" (number->string *gensym-counter*)))))) - -(define base:eval slib:eval) -(define (defmacro:eval x) (base:eval (defmacro:expand* x))) - -(define defmacro:load macro:load) - -(define (slib:eval-load <pathname> evl) - (if (not (file-exists? <pathname>)) - (set! <pathname> (string-append <pathname> (scheme-file-suffix)))) - (call-with-input-file <pathname> - (lambda (port) - (let ((old-load-pathname *load-pathname*)) - (set! *load-pathname* <pathname>) - (do ((o (read port) (read port))) - ((eof-object? o)) - (evl o)) - (set! *load-pathname* old-load-pathname))))) - -(define slib:warn - (lambda args - (let ((cep (current-error-port))) - ;;(if (provided? 'trace) (print-call-stack cep)) - (display "Warn: " cep) - (for-each (lambda (x) (display #\ cep) (write x cep)) args)))) - -;;; define an error procedure for the library -(define (slib:error . args) - ;;(if (provided? 'trace) (print-call-stack (current-error-port))) - (apply s48-error args)) - -;;; define these as appropriate for your system. -(define slib:tab (s48-ascii->char 9)) -(define slib:form-feed (s48-ascii->char 12)) - -;;; Support for older versions of Scheme. Not enough code for its own file. -(define (last-pair l) (if (pair? (cdr l)) (last-pair (cdr l)) l)) -(define t #t) -(define nil #f) - -;;; Define these if your implementation's syntax can support them and if -;;; they are not already defined. - -(define (1+ n) (+ n 1)) -(define (-1+ n) (+ n -1)) -;(define 1- -1+) - -(define in-vicinity string-append) - -;;; Define SLIB:EXIT to be the implementation procedure to exit or -;;; return if exitting not supported. -(define slib:exit (lambda args #f)) - -;;; Here for backward compatability -(define scheme-file-suffix - (case (software-type) - ((NOSVE) (lambda () "_scm")) - (else (lambda () ".scm")))) - -;;; (SLIB:LOAD-SOURCE "foo") should load "foo.scm" or with whatever -;;; suffix all the module files in SLIB have. See feature 'SOURCE. -(define (slib:load-source f) (load (string-append f (scheme-file-suffix)))) - -;;; (SLIB:LOAD-COMPILED "foo") should load the file that was produced -;;; by compiling "foo.scm" if this implementation can compile files. -;;; See feature 'COMPILED. -(define slib:load-compiled load) - -;;; At this point SLIB:LOAD must be able to load SLIB files. -(define slib:load slib:load-source) - -;;; Scheme48 complains that these are not defined (even though they -;;; won't be called until they are). -(define synclo:load #f) -(define syncase:load #f) -(define macwork:load #f) -(define transcript-on #f) -(define transcript-off #f) - -;;; Jacques Mequin wins the Spring 2001 SLIB extreme cleverness award: -(define-syntax defmacro - (lambda (e r c) - (let* ((e-fields (cdr e)) - (macro-name (car e-fields)) - (macro-args (cdr e-fields)) - (slib-store (eval 'defmacro:eval (interaction-environment)))) - (slib-store `(defmacro ,macro-name ,@macro-args))) - `(define-syntax ,(cadr e) - (lambda (em rm cm) - (let ((macro-name ',(cadr e)) - (macro-args (cdr em)) - (slib-eval (eval 'macroexpand-1 (interaction-environment)))) - (slib-eval `(,macro-name ,@macro-args))))))) - -(slib:load (in-vicinity (library-vicinity) "require")) - -;;; Needed to support defmacro -(require 'defmacroexpand) -(define *args* '()) -(define (program-arguments) (cons "scheme48" *args*)) -(set! *catalog* #f) - -,collect -,batch off -,dump slib.image "(slib 3a1)" -,exit |