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-rw-r--r--chez.init100
1 files changed, 58 insertions, 42 deletions
diff --git a/chez.init b/chez.init
index 4b58b84..44acba8 100644
--- a/chez.init
+++ b/chez.init
@@ -16,8 +16,8 @@
(define (scheme-implementation-type) 'chez)
-;;; (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)
@@ -64,66 +64,76 @@
;;; of this implementation. Suggestions for features are:
(define *features*
- '(
- source ; Chez Scheme can load Scheme source files, with the
- ; command (slib:load-source "filename") -- see below.
+ '(
+ source ;can load scheme source files
+ ;(slib:load-source "filename")
+ compiled ;can load compiled files
+ ;(slib:load-compiled "filename")
- compiled ; Chez Scheme can also load compiled Scheme files, with the
- ; command (slib:load-compiled "filename") -- see below.
- rev4-report ;conforms to
- rev3-report ;conforms to
- ieee-p1178 ;conforms to
-; sicp ;runs code from Structure and
- ;Interpretation of Computer
- ;Programs by Abelson and Sussman.
+ ;; 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?
+ 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.
- multiarg-apply ;APPLY can take more than 2 args.
- rationalize
- delay ;has DELAY and FORCE
with-file ;has WITH-INPUT-FROM-FILE and
;WITH-OUTPUT-FROM-FILE
- string-port ;has CALL-WITH-INPUT-STRING and
- ;CALL-WITH-OUTPUT-STRING
transcript ;TRANSCRIPT-ON and TRANSCRIPT-OFF
- char-ready?
- macro ;has R4RS high level macros
-; defmacro ;has Common Lisp DEFMACRO
- eval ;R5RS two-argument eval
- record ;has user defined data structures
- values ;proposed multiple values
- dynamic-wind ;proposed dynamic-wind
-; ieee-floating-point ;conforms to
+; ieee-floating-point ;conforms to IEEE Standard 754-1985
+ ;IEEE Standard for Binary
+ ;Floating-Point Arithmetic.
full-continuation ;can return multiple times
-; object-hash ;has OBJECT-HASH
+ ;; 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 ;queues
pretty-print
; object->string
- format
+ 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)
-; Xwindows ;X support
-; curses ;screen management package
-; termcap ;terminal description package
-; terminfo ;sysV terminal description
; current-time ;returns time in seconds since 1/1/1970
+
+ ;; Implementation Specific features
+
fluid-let
random
- rev3-procedures
))
;;; (OUTPUT-PORT-WIDTH <port>) returns the number of graphic characters
@@ -179,8 +189,12 @@
;; port to be transferred all the way out to its ultimate destination.
(define force-output flush-output-port)
-;;; CALL-WITH-INPUT-STRING and CALL-WITH-OUTPUT-STRING are the string
-;;; port versions of CALL-WITH-*PUT-FILE.
+;;; "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.
@@ -201,9 +215,10 @@
;;; define an error procedure for the library
(define slib:error
(lambda args
- (let ((port (current-error-port)))
- (display "Error: " port)
- (for-each (lambda (x) (display x port)) args)
+ (let ((cep (current-error-port)))
+ (if (provided? 'trace) (print-call-stack cep))
+ (display "Error: " cep)
+ (for-each (lambda (x) (display x cep)) args)
(error #f ""))))
;;; define these as appropriate for your system.
@@ -379,9 +394,10 @@
(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))))
;;; Load the REQUIRE package.