diff options
Diffstat (limited to 'guile.init')
| -rw-r--r-- | guile.init | 420 |
1 files changed, 417 insertions, 3 deletions
@@ -1,4 +1,418 @@ -;"guile.init" Configuration file for SLIB for GUILE -*-scheme-*- +;"guile.init" Configuration file for SLIB for GUILE -*-scheme-*- +;;; Author: Aubrey Jaffer +;;; +;;; This code is in the public domain. -(use-modules (ice-9 slib)) -(define (slib:load-cadr argv) (slib:load (cadr argv))) +(if (string<? (version) "1.6") + (define-module (ice-9 slib))) ; :no-backtrace +(define slib-module (current-module)) +(define (defined? symbol) (module-defined? slib-module symbol)) + +(define base:define define) +(define define + (procedure->memoizing-macro + (lambda (exp env) + (cons (if (= 1 (length env)) 'define-public 'base:define) (cdr exp))))) + +;;; Hack to make syncase macros work in the slib module +(if (nested-ref the-root-module '(app modules ice-9 syncase)) + (set-object-property! (module-local-variable (current-module) 'define) + '*sc-expander* + '(define))) + +;;; (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/guile.html") + +;;; (scheme-implementation-version) should return a string describing +;;; the version the scheme implementation loading this file. +(define scheme-implementation-version version) + +(define in-vicinity string-append) + +;;; (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 (or (%search-load-path "slib/require.scm") + (error "Could not find slib/require.scm in " %load-path))) + (vic (substring path 0 (- (string-length path) 16)))) + (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 ((library-path + (or + ;; Use this getenv if your implementation supports it. + (and (defined? 'getenv) (getenv "SCHEME_LIBRARY_PATH")) + ;; Use this path if your scheme does not support GETENV + ;; or if SCHEME_LIBRARY_PATH is not set. + (in-vicinity (implementation-vicinity) "slib/")))) + (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 (getenv "HOME"))) + (and home + (case (software-type) + ((unix coherent ms-dos) ;V7 unix has a / on HOME + (if (eqv? #\/ (string-ref home (+ -1 (string-length home)))) + home + (string-append home "/"))) + (else home))))) + +;;; *FEATURES* should be set to a list of symbols describing features +;;; of this implementation. Suggestions for features are: +(define *features* + (append + '( + 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. +; 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 + random + ) + + (if (defined? 'getenv) + '(getenv) + '()) + + (if (defined? 'current-time) + '(current-time) + '()) + + (if (defined? 'system) + '(system) + '()) + + (if (defined? 'array?) + '(array) + '()) + + (if (defined? 'char-ready?) + '(char-ready?) + '()) + + (if (defined? 'array-for-each) + '(array-for-each) + '()) + + *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 +;; (let ((port (current-output-port))) +;; (lambda () port))) + +;;; (TMPNAM) makes a temporary file name. +;;(define tmpnam (let ((cntr 100)) +;; (lambda () (set! cntr (+ 1 cntr)) +;; (string-append "slib_" (number->string cntr))))) + +;;; (FILE-EXISTS? <string>) +;;(define (file-exists? f) #f) + +;;; (DELETE-FILE <string>) +;;(define (delete-file f) #f) + +;;; 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) #t) + +;;; CALL-WITH-INPUT-STRING and CALL-WITH-OUTPUT-STRING are the string +;;; port versions of CALL-WITH-*PUT-FILE. + +(define (make-exchanger obj) + (lambda (rep) (let ((old obj)) (set! obj rep) old))) + +(define (port? obj) (or (input-port? obj) (output-port? obj))) +(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)) + +;;; "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 char-code-limit 256) + +;;; MOST-POSITIVE-FIXNUM is used in modular.scm +;;(define most-positive-fixnum #x0FFFFFFF) + +;;; Return argument +(define (identity x) x) + +;;; SLIB:EVAL is single argument eval using the top-level (user) environment. +(define slib:eval + (if (string<? (scheme-implementation-version) "1.5") + eval + (let ((ie (interaction-environment))) + (lambda (expression) + (eval expression ie))))) + +;;; 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))) + +(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 (guile:wrap-case-insensitive proc) + (lambda args + (save-module-excursion + (lambda () + (set-current-module slib-module) + (let ((old (read-options))) + (dynamic-wind + (lambda () (read-enable 'case-insensitive)) + (lambda () (apply proc args)) + (lambda () (read-options old)))))))) + +(define read (guile:wrap-case-insensitive read)) + +;;; (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 + (let ((load-file (guile:wrap-case-insensitive load))) + (lambda (<pathname>) + (load-file (string-append <pathname> (scheme-file-suffix)))))) + +(define slib:load-source slib:load) + +;;; (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 slib:load) + +(define defmacro:eval slib:eval) +(define defmacro:load slib:load) + +(define (defmacro:expand* x) + (require 'defmacroexpand) (apply defmacro:expand* x '())) + +;;; If your implementation provides R4RS macros: +(define macro:eval slib:eval) +(define macro:load slib:load) + +(define slib:warn warn) +(define slib:error error) + +;;; define these as appropriate for your system. +(define slib:tab #\tab) +(define slib:form-feed #\page) + +;;; {Time} +(define difftime -) +(define offset-time +) + +;;; Early version of 'logical is built-in +(define logical:logand logand) +(define logical:logior logior) +;;(define logical:logxor logxor) +;;(define logical:lognot lognot) +;;(define logical:logtest logtest) +;;(define logical:logbit? logbit?) +(define (copy-bit index to bool) + (if bool + (logical:logior to (logical:ash 1 index)) + (logical:logand to (logical:lognot (logical:ash 1 index))))) +;;(define copy-bit logical:copy-bit) +;;(define logical:ash ash) +;;(define logical:logcount logcount) +;;(define logical:integer-length integer-length) +(define (logical:bit-field n start end) + (logical:logand (- (logical:integer-expt 2 (- end start)) 1) + (logical:ash n (- start)))) +;;(define bit-field logical:bit-field) +(define (bitwise-if mask n0 n1) + (logical:logior (logical:logand mask n0) + (logical:logand (logical:lognot mask) n1))) +(define logical:bitwise-if bitwise-if) +;;(define logical:bit-extract bit-extract) +(define (copy-bit-field to start end from) + (logical:bitwise-if + (logical:ash (- (logical:integer-expt 2 (- end start)) 1) start) + (logical:ash from start) + to)) +;;(define copy-bit-field logical:copy-bit-field) +(define logical:integer-expt integer-expt) +;;(define logical:ipow-by-squaring ipow-by-squaring) + +;;guile> (expt 2 -1) +;;ERROR: In procedure integer-expt: +;;ERROR: Argument out of range: -1 +;;ABORT: (out-of-range) +(define expt + (let ((integer-expt integer-expt)) + (lambda (z1 z2) + (cond ((zero? z1) (if (zero? z2) 1 0)) + ((and (exact? z2) (not (negative? z2))) + (integer-expt z1 z2)) + ((and (real? z2) (real? z1) (>= z1 0)) + ($expt z1 z2)) + (else + (exp (* z2 (log z1)))))))) + +;;; array-for-each +(define (array-indexes ra) + (let ((ra0 (apply create-array '#() (array-shape ra)))) + (array-index-map! ra0 list) + ra0)) +(define (array-copy! source dest) + (array-map! dest identity source)) +(define (array-null? array) + (zero? (apply * (map (lambda (bnd) (- 1 (apply - bnd))) + (array-shape array))))) +(define (create-array prot . args) + (if (array-null? prot) + (dimensions->uniform-array args (array-prototype prot)) + (dimensions->uniform-array args (array-prototype prot) + (apply array-ref prot + (map car (array-shape prot)))))) +(define (make-uniform-wrapper prot) + (if (string? prot) (set! prot (string->number prot))) + (if prot + (lambda opt (if (null? opt) + (list->uniform-array 1 prot '()) + (list->uniform-array 1 prot opt))) + vector)) +(define ac64 (make-uniform-wrapper "+i")) +(define ac32 ac64) +(define ar64 (make-uniform-wrapper "1/3")) +(define ar32 (make-uniform-wrapper "1.")) +(define as64 vector) +(define as32 (make-uniform-wrapper -32)) +(define as16 as32) +(define as8 as32) +(define au64 vector) +(define au32 (make-uniform-wrapper 32)) +(define au16 au32) +(define au8 au32) +(define at1 (make-uniform-wrapper #t)) + +;;; {Random numbers} +(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))) + +;;; 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)) + +;;; Guile has nil and t as self-sets +;;(define t #t) +;;(define nil #f) + +;;; Define these if your implementation's syntax can support it and if +;;; they are not already defined. + +;;(define (1+ n) (+ n 1)) +;;(define (-1+ n) (+ n -1)) +;;(define 1- -1+) + +(slib:load (in-vicinity (library-vicinity) "require")) |