SLIB init file for Guile.

module/slib/guile.init

@@ -0,0 +1,232 @@
+;;; "guile.init" configuration template of *features* for Scheme -*-scheme-*-
+;;; Author: Aubrey Jaffer
+;;;
+;;; This code is in the public domain.
+
+;;; (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) 'Guile)
+
+;;; (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://www.gnu.org/software/guile/")
+
+;;; (scheme-implementation-version) should return a string describing
+;;; the version the scheme implementation loading this file.
+
+(define scheme-implementation-version version)
+
+;;; (implementation-vicinity) should be defined to be the pathname of
+;;; the directory where any auxillary files to your Scheme
+;;; implementation reside.
+
+(define implementation-vicinity
+  (let ((path (string-append (%package-data-dir) "/")))
+    (lambda () path)))
+
+;;; (library-vicinity) should be defined to be the pathname of the
+;;; directory where files of Scheme library functions reside.
+
+(define library-vicinity
+  (let ((library-path
+	 (or
+	  ;; Use this getenv if your implementation supports it.
+	  (getenv "SCHEME_LIBRARY_PATH")
+	  ;; Use this path if your scheme does not support GETENV
+	  ;; or if SCHEME_LIBRARY_PATH is not set.
+	  (let ((this-file (port-filename (current-load-port))))
+	    (substring this-file 0 (- (string-length this-file) 10))))))
+    (lambda () library-path)))
+
+;;; (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.
+
+(define home-vicinity
+  (let ((home-path (getenv "HOME")))
+    (lambda () home-path)))
+
+;;; *FEATURES* should be set to a list of symbols describing features
+;;; of this implementation.  Suggestions for features are:
+
+(define *features*
+      '(
+	source				;can load scheme source files
+					;(slib:load-source "filename")
+	compiled			;can load compiled files
+					;(slib:load-compiled "filename")
+	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.
+	rev4-optional-procedures	;LIST-TAIL, STRING->LIST,
+					;LIST->STRING, STRING-COPY,
+					;STRING-FILL!, LIST->VECTOR,
+					;VECTOR->LIST, and VECTOR-FILL!
+	rev2-procedures			;SUBSTRING-MOVE-LEFT!,
+					;SUBSTRING-MOVE-RIGHT!,
+					;SUBSTRING-FILL!,
+					;STRING-NULL?, APPEND!, 1+,
+					;-1+, <?, <=?, =?, >?, >=?
+	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
+	macro-by-example
+	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
+	full-continuation		;can return multiple times
+;	object-hash			;has OBJECT-HASH
+
+	sort
+;	queue				;queues
+;	pretty-print
+	object->string
+;	format
+;	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
+
+	abort
+	array
+	array-for-each
+	random
+	hash
+	hash-table
+	line-i/o
+	logical
+	promise
+	string-case
+	syntax-case
+	))
+
+;; time
+(define difftime -)
+(define offset-time +)
+
+;; random
+(define (make-random-state . args)
+  (let ((seed (if (null? args) *random-state* (car args))))
+    (cond ((string? seed))
+	  ((number? seed) (set! seed (number->string seed)))
+	  (else (let ()
+		  (require 'object->string)
+		  (set! seed (object->limited-string seed 50)))))
+    (seed->random-state seed)))
+
+;;; (OUTPUT-PORT-WIDTH <port>)
+(define (output-port-width . arg) 79)
+
+;;; (OUTPUT-PORT-HEIGHT <port>)
+(define (output-port-height . arg) 24)
+
+;;; "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)))
+
+;;; Return argument
+(define (identity x) x)
+
+;;; SLIB:EVAL is single argument eval using the top-level (user) environment.
+(define (slib:eval x)
+  (eval x (interaction-environment)))
+
+(define base:eval slib:eval)
+(define (defmacro:eval x) (base:eval (defmacro:expand* x)))
+(define (defmacro:expand* x)
+  (require 'defmacroexpand) (apply defmacro:expand* x '()))
+
+(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 (defmacro:load <pathname>)
+  (slib:eval-load <pathname> defmacro:eval))
+
+(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 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 args))
+
+;;; define these as appropriate for your system.
+(define slib:tab (integer->char 9))
+(define slib:form-feed (integer->char 12))
+
+;;; Support for older versions of Scheme.  Not enough code for its own file.
+(define t #t)
+(define nil #f)
+
+;;; Define SLIB:EXIT to be the implementation procedure to exit or
+;;; return if exitting not supported.
+(define slib:exit quit)
+
+;;; Here for backward compatability
+(define scheme-file-suffix
+  (let ((suffix (case (software-type)
+		  ((NOSVE) "_scm")
+		  (else ".scm"))))
+    (lambda () suffix)))
+
+;;; (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-compiled)
+
+(slib:load (in-vicinity (library-vicinity) "require"))