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-rw-r--r--mitscheme.init104
1 files changed, 74 insertions, 30 deletions
diff --git a/mitscheme.init b/mitscheme.init
index ab1e1b7..afec48e 100644
--- a/mitscheme.init
+++ b/mitscheme.init
@@ -15,8 +15,8 @@
(define (scheme-implementation-type) 'MITScheme)
-;;; (scheme-implementation-home-page) should return a (string) URL
-;;; (Uniform Resource Locator) for this scheme implementation's home
+;;; (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)
@@ -27,7 +27,7 @@
(define (scheme-implementation-version)
(let* ((str (with-output-to-string identify-world))
- (beg (+ (substring? "Release " str) 8))
+ (beg (+ (string-search-forward "Release " str) 8))
(rst (substring str beg (string-length str)))
(end (string-find-next-char-in-set
rst
@@ -76,36 +76,71 @@
;(slib:load-source "filename")
compiled ;can load compiled files
;(slib:load-compiled "filename")
- rev4-report
- ieee-p1178
- sicp
- rev4-optional-procedures
- rev3-procedures
- rev2-procedures
- multiarg/and-
- multiarg-apply
- rationalize
- object-hash
- delay
- with-file
- string-port
- transcript
+
+ ;; Scheme report features
+
+ rev5-report ;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?
- record
- values
- dynamic-wind
- ieee-floating-point
- full-continuation
+ rationalize
+ rev4-optional-procedures ;LIST-TAIL, STRING->LIST,
+ ;LIST->STRING, STRING-COPY,
+ ;STRING-FILL!, LIST->VECTOR,
+ ;VECTOR->LIST, and VECTOR-FILL!
+
+ rev4-report ;conforms to
+
+ ieee-p1178 ;conforms to
+
+; rev3-report ;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-FROM-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
- queue
pretty-print
object->string
+; format ;Common-lisp output formatting
trace ;has macros: TRACE and UNTRACE
- defmacro
- compiler
- getenv
+ 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
+
+ queue
Xwindows
- current-time
))
(define current-time current-file-time)
@@ -156,6 +191,13 @@
(define object->string write-to-string)
(define object->limited-string write-to-string)
+;;; "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. It is defined incorrectly (65536)
;;; by MITScheme version 8.0.
@@ -229,12 +271,14 @@
(define slib:warn
(lambda args
- (let ((port (current-error-port)))
- (display "Warn: " port)
- (for-each (lambda (x) (display x port)) args))))
+ (let ((cep (current-error-port)))
+ (if (provided? 'trace) (print-call-stack cep))
+ (display "Warn: " cep)
+ (for-each (lambda (x) (display x cep)) args))))
;; define an error procedure for the library
(define (slib:error . args)
+ (if (provided? 'trace) (print-call-stack (current-error-port)))
(apply error-procedure (append args (list (the-environment)))))
;; define these as appropriate for your system.