boot modules WIP

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Jan Nieuwenhuizen 2019-11-17 09:10:46 +01:00 committed by Jan (janneke) Nieuwenhuizen
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;;;; optargs.scm -- support for optional arguments
;;;;
;;;; Copyright (C) 1997, 1998, 1999, 2001, 2002, 2004, 2006 Free Software Foundation, Inc.
;;;;
;;;; This library is free software; you can redistribute it and/or
;;;; modify it under the terms of the GNU Lesser General Public
;;;; License as published by the Free Software Foundation; either
;;;; version 3 of the License, or (at your option) any later version.
;;;;
;;;; This library is distributed in the hope that it will be useful,
;;;; but WITHOUT ANY WARRANTY; without even the implied warranty of
;;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
;;;; Lesser General Public License for more details.
;;;;
;;;; You should have received a copy of the GNU Lesser General Public
;;;; License along with this library; if not, write to the Free Software
;;;; Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
;;;;
;;;; Contributed by Maciej Stachowiak <mstachow@alum.mit.edu>
;;; Commentary:
;;; {Optional Arguments}
;;;
;;; The C interface for creating Guile procedures has a very handy
;;; "optional argument" feature. This module attempts to provide
;;; similar functionality for procedures defined in Scheme with
;;; a convenient and attractive syntax.
;;;
;;; exported macros are:
;;; let-optional
;;; let-optional*
;;; let-keywords
;;; let-keywords*
;;; lambda*
;;; define*
;;; define*-public
;;; defmacro*
;;; defmacro*-public
;;;
;;;
;;; Summary of the lambda* extended parameter list syntax (brackets
;;; are used to indicate grouping only):
;;;
;;; ext-param-list ::= [identifier]* [#:optional [ext-var-decl]+]?
;;; [#:key [ext-var-decl]+ [#:allow-other-keys]?]?
;;; [[#:rest identifier]|[. identifier]]?
;;;
;;; ext-var-decl ::= identifier | ( identifier expression )
;;;
;;; The characters `*', `+' and `?' are not to be taken literally; they
;;; mean respectively, zero or more occurences, one or more occurences,
;;; and one or zero occurences.
;;;
;;; Code:
(define-module (ice-9 optargs)
#:use-module (system base pmatch)
#:replace (lambda*)
#:export-syntax (let-optional
let-optional*
let-keywords
let-keywords*
define*
define*-public
defmacro*
defmacro*-public))
;; let-optional rest-arg (binding ...) . body
;; let-optional* rest-arg (binding ...) . body
;; macros used to bind optional arguments
;;
;; These two macros give you an optional argument interface that is
;; very "Schemey" and introduces no fancy syntax. They are compatible
;; with the scsh macros of the same name, but are slightly
;; extended. Each of binding may be of one of the forms <var> or
;; (<var> <default-value>). rest-arg should be the rest-argument of
;; the procedures these are used from. The items in rest-arg are
;; sequentially bound to the variable namess are given. When rest-arg
;; runs out, the remaining vars are bound either to the default values
;; or to `#f' if no default value was specified. rest-arg remains
;; bound to whatever may have been left of rest-arg.
;;
(defmacro let-optional (REST-ARG BINDINGS . BODY)
(let-optional-template REST-ARG BINDINGS BODY 'let))
(defmacro let-optional* (REST-ARG BINDINGS . BODY)
(let-optional-template REST-ARG BINDINGS BODY 'let*))
;; let-keywords rest-arg allow-other-keys? (binding ...) . body
;; let-keywords* rest-arg allow-other-keys? (binding ...) . body
;; macros used to bind keyword arguments
;;
;; These macros pick out keyword arguments from rest-arg, but do not
;; modify it. This is consistent at least with Common Lisp, which
;; duplicates keyword args in the rest arg. More explanation of what
;; keyword arguments in a lambda list look like can be found below in
;; the documentation for lambda*. Bindings can have the same form as
;; for let-optional. If allow-other-keys? is false, an error will be
;; thrown if anything that looks like a keyword argument but does not
;; match a known keyword parameter will result in an error.
;;
(defmacro let-keywords (REST-ARG ALLOW-OTHER-KEYS? BINDINGS . BODY)
(let-keywords-template REST-ARG ALLOW-OTHER-KEYS? BINDINGS BODY 'let))
(defmacro let-keywords* (REST-ARG ALLOW-OTHER-KEYS? BINDINGS . BODY)
(let-keywords-template REST-ARG ALLOW-OTHER-KEYS? BINDINGS BODY 'let*))
;; some utility procedures for implementing the various let-forms.
(define (let-o-k-template REST-ARG BINDINGS BODY let-type proc)
(let ((bindings (map (lambda (x)
(if (list? x)
x
(list x #f)))
BINDINGS)))
`(,let-type ,(map proc bindings) ,@BODY)))
(define (let-optional-template REST-ARG BINDINGS BODY let-type)
(if (null? BINDINGS)
`(let () ,@BODY)
(let-o-k-template REST-ARG BINDINGS BODY let-type
(lambda (optional)
`(,(car optional)
(cond
((not (null? ,REST-ARG))
(let ((result (car ,REST-ARG)))
,(list 'set! REST-ARG
`(cdr ,REST-ARG))
result))
(else
,(cadr optional))))))))
(define (let-keywords-template REST-ARG ALLOW-OTHER-KEYS? BINDINGS BODY let-type)
(if (null? BINDINGS)
`(let () ,@BODY)
(let* ((kb-list-gensym (gensym "kb:G"))
(bindfilter (lambda (key)
`(,(car key)
(cond
((assq ',(car key) ,kb-list-gensym)
=> cdr)
(else
,(cadr key)))))))
`(let ((,kb-list-gensym ((if (not mes?) (@@ (mes optargs) rest-arg->keyword-binding-list)
rest-arg->keyword-binding-list)
,REST-ARG ',(map (lambda (x) (symbol->keyword (if (pair? x) (car x) x)))
BINDINGS)
,ALLOW-OTHER-KEYS?)))
,(let-o-k-template REST-ARG BINDINGS BODY let-type bindfilter)))))
(define (rest-arg->keyword-binding-list rest-arg keywords allow-other-keys?)
(if (null? rest-arg)
'()
(let loop ((first (car rest-arg))
(rest (cdr rest-arg))
(accum '()))
(let ((next (lambda (a)
(if (null? (cdr rest))
a
(loop (cadr rest) (cddr rest) a)))))
(if (keyword? first)
(cond
((memq first keywords)
(if (null? rest)
(error "Keyword argument has no value:" first)
(next (cons (cons (keyword->symbol first)
(car rest)) accum))))
((not allow-other-keys?)
(error "Unknown keyword in arguments:" first))
(else (if (null? rest)
accum
(next accum))))
(if (null? rest)
accum
(loop (car rest) (cdr rest) accum)))))))
;; lambda* args . body
;; lambda extended for optional and keyword arguments
;;
;; lambda* creates a procedure that takes optional arguments. These
;; are specified by putting them inside brackets at the end of the
;; paramater list, but before any dotted rest argument. For example,
;; (lambda* (a b #:optional c d . e) '())
;; creates a procedure with fixed arguments a and b, optional arguments c
;; and d, and rest argument e. If the optional arguments are omitted
;; in a call, the variables for them are bound to `#f'.
;;
;; lambda* can also take keyword arguments. For example, a procedure
;; defined like this:
;; (lambda* (#:key xyzzy larch) '())
;; can be called with any of the argument lists (#:xyzzy 11)
;; (#:larch 13) (#:larch 42 #:xyzzy 19) (). Whichever arguments
;; are given as keywords are bound to values.
;;
;; Optional and keyword arguments can also be given default values
;; which they take on when they are not present in a call, by giving a
;; two-item list in place of an optional argument, for example in:
;; (lambda* (foo #:optional (bar 42) #:key (baz 73)) (list foo bar baz))
;; foo is a fixed argument, bar is an optional argument with default
;; value 42, and baz is a keyword argument with default value 73.
;; Default value expressions are not evaluated unless they are needed
;; and until the procedure is called.
;;
;; lambda* now supports two more special parameter list keywords.
;;
;; lambda*-defined procedures now throw an error by default if a
;; keyword other than one of those specified is found in the actual
;; passed arguments. However, specifying #:allow-other-keys
;; immediately after the keyword argument declarations restores the
;; previous behavior of ignoring unknown keywords. lambda* also now
;; guarantees that if the same keyword is passed more than once, the
;; last one passed is the one that takes effect. For example,
;; ((lambda* (#:key (heads 0) (tails 0)) (display (list heads tails)))
;; #:heads 37 #:tails 42 #:heads 99)
;; would result in (99 47) being displayed.
;;
;; #:rest is also now provided as a synonym for the dotted syntax rest
;; argument. The argument lists (a . b) and (a #:rest b) are equivalent in
;; all respects to lambda*. This is provided for more similarity to DSSSL,
;; MIT-Scheme and Kawa among others, as well as for refugees from other
;; Lisp dialects.
(defmacro lambda* (ARGLIST . BODY)
(parse-arglist
ARGLIST
(lambda (non-optional-args optionals keys aok? rest-arg)
;; Check for syntax errors.
(if (not (every? symbol? non-optional-args))
(error "Syntax error in fixed argument declaration."))
(if (not (every? ext-decl? optionals))
(error "Syntax error in optional argument declaration."))
(if (not (every? ext-decl? keys))
(error "Syntax error in keyword argument declaration."))
(if (not (or (symbol? rest-arg) (eq? #f rest-arg)))
(error "Syntax error in rest argument declaration."))
;; generate the code.
(let ((rest-gensym (or rest-arg (gensym "lambda*:G")))
(lambda-gensym (gensym "lambda*:L")))
(if (not (and (null? optionals) (null? keys)))
`(let ((,lambda-gensym
(lambda (,@non-optional-args . ,rest-gensym)
;; Make sure that if the proc had a docstring, we put it
;; here where it will be visible.
,@(if (and (not (null? BODY))
(string? (car BODY)))
(list (car BODY))
'())
(let-optional*
,rest-gensym
,optionals
(let-keywords* ,rest-gensym
,aok?
,keys
,@(if (and (not rest-arg) (null? keys))
`((if (not (null? ,rest-gensym))
(error "Too many arguments.")))
'())
(let ()
,@BODY))))))
(set-procedure-property! ,lambda-gensym 'arglist
'(,non-optional-args
,optionals
,keys
,aok?
,rest-arg))
,lambda-gensym)
`(lambda (,@non-optional-args . ,(if rest-arg rest-arg '()))
,@BODY))))))
(define (every? pred lst)
(or (null? lst)
(and (pred (car lst))
(every? pred (cdr lst)))))
(define (ext-decl? obj)
(or (symbol? obj)
(and (list? obj) (= 2 (length obj)) (symbol? (car obj)))))
;; XXX - not tail recursive
(define (improper-list-copy obj)
(if (pair? obj)
(cons (car obj) (improper-list-copy (cdr obj)))
obj))
(define (parse-arglist arglist cont)
(define (split-list-at val lst cont)
(cond
((memq val lst)
=> (lambda (pos)
(if (memq val (cdr pos))
(error (with-output-to-string
(lambda ()
(map display `(,val
" specified more than once in argument list.")))))
(cont (reverse (cdr (memq val (reverse lst)))) (cdr pos) #t))))
(else (cont lst '() #f))))
(define (parse-opt-and-fixed arglist keys aok? rest cont)
(split-list-at
#:optional arglist
(lambda (before after split?)
(if (and split? (null? after))
(error "#:optional specified but no optional arguments declared.")
(cont before after keys aok? rest)))))
(define (parse-keys arglist rest cont)
(split-list-at
#:allow-other-keys arglist
(lambda (aok-before aok-after aok-split?)
(if (and aok-split? (not (null? aok-after)))
(error "#:allow-other-keys not at end of keyword argument declarations.")
(split-list-at
#:key aok-before
(lambda (key-before key-after key-split?)
(cond
((and aok-split? (not key-split?))
(error "#:allow-other-keys specified but no keyword arguments declared."))
(key-split?
(cond
((null? key-after) (error "#:key specified but no keyword arguments declared."))
((memq #:optional key-after) (error "#:optional arguments declared after #:key arguments."))
(else (parse-opt-and-fixed key-before key-after aok-split? rest cont))))
(else (parse-opt-and-fixed arglist '() #f rest cont)))))))))
(define (parse-rest arglist cont)
(cond
((null? arglist) (cont '() '() '() #f #f))
((not (pair? arglist)) (cont '() '() '() #f arglist))
((not (list? arglist))
(let* ((copy (improper-list-copy arglist))
(lp (last-pair copy))
(ra (cdr lp)))
(set-cdr! lp '())
(if (memq #:rest copy)
(error "Cannot specify both #:rest and dotted rest argument.")
(parse-keys copy ra cont))))
(else (split-list-at
#:rest arglist
(lambda (before after split?)
(if split?
(case (length after)
((0) (error "#:rest not followed by argument."))
((1) (parse-keys before (car after) cont))
(else (error "#:rest argument must be declared last.")))
(parse-keys before #f cont)))))))
(parse-rest arglist cont))
;; define* args . body
;; define*-public args . body
;; define and define-public extended for optional and keyword arguments
;;
;; define* and define*-public support optional arguments with
;; a similar syntax to lambda*. They also support arbitrary-depth
;; currying, just like Guile's define. Some examples:
;; (define* (x y #:optional a (z 3) #:key w . u) (display (list y z u)))
;; defines a procedure x with a fixed argument y, an optional agument
;; a, another optional argument z with default value 3, a keyword argument w,
;; and a rest argument u.
;; (define-public* ((foo #:optional bar) #:optional baz) '())
;; This illustrates currying. A procedure foo is defined, which,
;; when called with an optional argument bar, returns a procedure that
;; takes an optional argument baz.
;;
;; Of course, define*[-public] also supports #:rest and #:allow-other-keys
;; in the same way as lambda*.
(defmacro define* (ARGLIST . BODY)
(define*-guts 'define ARGLIST BODY))
(defmacro define*-public (ARGLIST . BODY)
(define*-guts 'define-public ARGLIST BODY))
;; The guts of define* and define*-public.
(define (define*-guts DT ARGLIST BODY)
(define (nest-lambda*s arglists)
(if (null? arglists)
BODY
`((lambda* ,(car arglists) ,@(nest-lambda*s (cdr arglists))))))
(define (define*-guts-helper ARGLIST arglists)
(let ((first (car ARGLIST))
(al (cons (cdr ARGLIST) arglists)))
(if (symbol? first)
`(,DT ,first ,@(nest-lambda*s al))
(define*-guts-helper first al))))
(if (symbol? ARGLIST)
`(,DT ,ARGLIST ,@BODY)
(define*-guts-helper ARGLIST '())))
;; defmacro* name args . body
;; defmacro*-public args . body
;; defmacro and defmacro-public extended for optional and keyword arguments
;;
;; These are just like defmacro and defmacro-public except that they
;; take lambda*-style extended paramter lists, where #:optional,
;; #:key, #:allow-other-keys and #:rest are allowed with the usual
;; semantics. Here is an example of a macro with an optional argument:
;; (defmacro* transmorgify (a #:optional b)
(defmacro defmacro* (NAME ARGLIST . BODY)
`(define-macro ,NAME #f (lambda* ,ARGLIST ,@BODY)))
(defmacro defmacro*-public (NAME ARGLIST . BODY)
`(begin
(defmacro* ,NAME ,ARGLIST ,@BODY)
(export-syntax ,NAME)))
;;; Support for optional & keyword args with the interpreter.
(define *uninitialized* (list 'uninitialized))
(define (parse-lambda-case spec inits predicate args)
(pmatch spec
((,nreq ,nopt ,rest-idx ,nargs ,allow-other-keys? ,kw-indices)
(define (req args prev tail n)
(cond
((zero? n)
(if prev (set-cdr! prev '()))
(let ((slots-tail (make-list (- nargs nreq) *uninitialized*)))
(opt (if prev (append! args slots-tail) slots-tail)
slots-tail tail nopt inits)))
((null? tail)
#f) ;; fail
(else
(req args tail (cdr tail) (1- n)))))
(define (opt slots slots-tail args-tail n inits)
(cond
((zero? n)
(rest-or-key slots slots-tail args-tail inits rest-idx))
((null? args-tail)
(set-car! slots-tail (apply (car inits) slots))
(opt slots (cdr slots-tail) '() (1- n) (cdr inits)))
(else
(set-car! slots-tail (car args-tail))
(opt slots (cdr slots-tail) (cdr args-tail) (1- n) (cdr inits)))))
(define (rest-or-key slots slots-tail args-tail inits rest-idx)
(cond
(rest-idx
;; it has to be this way, vars are allocated in this order
(set-car! slots-tail args-tail)
(if (pair? kw-indices)
(key slots (cdr slots-tail) args-tail inits)
(rest-or-key slots (cdr slots-tail) '() inits #f)))
((pair? kw-indices)
;; fail early here, because once we're in keyword land we throw
;; errors instead of failing
(and (or (null? args-tail) rest-idx (keyword? (car args-tail)))
(key slots slots-tail args-tail inits)))
((pair? args-tail)
#f) ;; fail
(else
(pred slots))))
(define (key slots slots-tail args-tail inits)
(cond
((null? args-tail)
(if (null? inits)
(pred slots)
(begin
(if (eq? (car slots-tail) *uninitialized*)
(set-car! slots-tail (apply (car inits) slots)))
(key slots (cdr slots-tail) '() (cdr inits)))))
((not (keyword? (car args-tail)))
(if rest-idx
;; no error checking, everything goes to the rest..
(key slots slots-tail '() inits)
(error "bad keyword argument list" args-tail)))
((and (keyword? (car args-tail))
(pair? (cdr args-tail))
(assq-ref kw-indices (car args-tail)))
=> (lambda (i)
(list-set! slots i (cadr args-tail))
(key slots slots-tail (cddr args-tail) inits)))
((and (keyword? (car args-tail))
(pair? (cdr args-tail))
allow-other-keys?)
(key slots slots-tail (cddr args-tail) inits))
(else (error "unrecognized keyword" args-tail))))
(define (pred slots)
(cond
(predicate
(if (apply predicate slots)
slots
#f))
(else slots)))
(let ((args (list-copy args)))
(req args #f args nreq)))
(else (error "unexpected spec" spec))))

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@ -96,6 +96,9 @@
(define-macro (mes-use-module module)
#t)
(define-macro (define-module module . rest)
#t)
;; end boot-02.scm
;; boot-03.scm
@ -165,127 +168,17 @@
(mes-use-module (mes quasiquote))
(mes-use-module (mes let))
(mes-use-module (mes scm))
(define-macro (define-module module . rest)
`(if ,(and (pair? module)
(= 1 (length module))
(symbol? (car module)))
(define (,(car module) . arguments) (main (command-line)))))
(define-macro (use-modules . rest) #t)
;; end boot-03.scm
(define (effective-version) %version)
(mes-use-module (srfi srfi-1))
(mes-use-module (srfi srfi-13))
(mes-use-module (mes fluids))
(mes-use-module (mes catch))
(mes-use-module (mes posix))
(mes-use-module (mes guile))
;; end boot-04.scm
(define-macro (include-from-path file)
(let loop ((path (cons* %moduledir "module" (string-split (or (getenv "GUILE_LOAD_PATH") "") #\:))))
(cond ((and=> (getenv "MES_DEBUG") (compose (lambda (o) (> o 2)) string->number))
(core:display-error (string-append "include-from-path: " file " [PATH:" (string-join path ":") "]\n")))
((and=> (getenv "MES_DEBUG") (compose (lambda (o) (> o 1)) string->number))
(core:display-error (string-append "include-from-path: " file "\n"))))
(if (null? path) (error "include-from-path: not found: " file)
(let ((file (string-append (car path) "/" file)))
(if (access? file R_OK) `(load ,file)
(loop (cdr path)))))))
(define-macro (define-module module . rest)
`(if ,(and (pair? module)
(= 1 (length module))
(symbol? (car module)))
(define (,(car module) . arguments) (main (command-line)))))
(define-macro (use-modules . rest) #t)
(mes-use-module (mes getopt-long))
(define %main #f)
(primitive-load 0)
(let ((tty? (isatty? 0)))
(define (parse-opts args)
(let* ((option-spec
'((no-auto-compile)
(command (single-char #\c) (value #t))
(compiled-path (single-char #\C) (value #t))
(help (single-char #\h))
(load-path (single-char #\L) (value #t))
(main (single-char #\e) (value #t))
(source (single-char #\s) (value #t))
(version (single-char #\v))
(version (single-char #\V)))))
(getopt-long args option-spec #:stop-at-first-non-option #t)))
(define (source-arg? o)
(equal? "-s" o))
(let* ((s-index (list-index source-arg? %argv))
(args (if s-index (list-head %argv (+ s-index 2)) %argv))
(options (parse-opts args))
(command (option-ref options 'command #f))
(main (option-ref options 'main #f))
(source (option-ref options 'source #f))
(files (if s-index (list-tail %argv (+ s-index 1))
(option-ref options '() '())))
(help? (option-ref options 'help #f))
(usage? #f)
(version? (option-ref options 'version #f)))
(or
(and version?
(display (string-append "mes (GNU Mes) " %version "\n"))
(exit 0))
(and (or help? usage?)
(display "Usage: mes [OPTION]... [FILE]...
Scheme interpreter for bootstrapping the GNU system.
Options:
[-s] FILE load source code from FILE, and exit
-c EXPR evaluate expression EXPR, and exit
-- stop scanning arguments; run interactively
The above switches stop argument processing, and pass all
remaining arguments as the value of (command-line).
-e, --main=MAIN after reading script, apply MAIN to command-line arguments
-h, --help display this help and exit
-L, --load-path=DIR add DIR to the front of the module load path
-v, --version display version information and exit
Ignored for Guile compatibility:
--auto-compile
--fresh-auto-compile
--no-auto-compile
-C, --compiled-path=DIR
Report bugs to: bug-mes@gnu.org
GNU Mes home page: <http://gnu.org/software/mes/>
General help using GNU software: <http://gnu.org/gethelp/>
" (or (and usage? (current-error-port)) (current-output-port)))
(exit (or (and usage? 2) 0)))
options)
(and=> (option-ref options 'load-path #f)
(lambda (dir)
(setenv "GUILE_LOAD_PATH" (string-append dir ":" (getenv "GUILE_LOAD_PATH")))))
(when command
(let* ((prev (set-current-input-port (open-input-string command)))
(expr (cons 'begin (read-input-file-env (current-module))))
(set-current-input-port prev))
(primitive-eval expr)
(exit 0)))
(when main (set! %main main))
(cond ((pair? files)
(let* ((file (car files))
(port (if (equal? file "-") 0
(open-input-file file))))
(set! %argv files)
(set-current-input-port port)))
((and (null? files) tty?)
(mes-use-module (mes repl))
(set-current-input-port 0)
(repl))
(else #t))))
(mes-use-module (mes main))
(top-main)
(primitive-load 0)
(primitive-load (open-input-string %main))

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@ -96,6 +96,9 @@
(define-macro (mes-use-module module)
#t)
(define-macro (define-module module . rest)
#t)
;; end boot-02.scm
;; boot-03.scm
@ -162,14 +165,7 @@
(mes-use-module (mes quasiquote))
(mes-use-module (mes let))
(mes-use-module (mes scm))
(define-macro (define-module module . rest)
`(if ,(and (pair? module)
(= 1 (length module))
(symbol? (car module)))
(define (,(car module) . arguments) (main (command-line)))))
(define-macro (use-modules . rest) #t)
;; end boot-03.scm
(primitive-load 0)
(primitive-load 0)

183
mes/module/mes/boot-5.mes Normal file
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@ -0,0 +1,183 @@
;;; -*-scheme-*-
;;; GNU Mes --- Maxwell Equations of Software
;;; Copyright © 2016,2017,2018,2019 Jan (janneke) Nieuwenhuizen <janneke@gnu.org>
;;;
;;; This file is part of GNU Mes.
;;;
;;; GNU Mes is free software; you can redistribute it and/or modify it
;;; under the terms of the GNU General Public License as published by
;;; the Free Software Foundation; either version 3 of the License, or (at
;;; your option) any later version.
;;;
;;; GNU Mes is distributed in the hope that it will be useful, but
;;; WITHOUT ANY WARRANTY; without even the implied warranty of
;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
;;; GNU General Public License for more details.
;;;
;;; You should have received a copy of the GNU General Public License
;;; along with GNU Mes. If not, see <http://www.gnu.org/licenses/>.
;;; Commentary:
;;; read-0.mes - bootstrap reader. This file is read by a minimal
;;; core reader. It only supports s-exps and line-comments; quotes,
;;; character literals, string literals cannot be used here.
;;; Code:
;; boot-00.scm
(define mes %version)
(define (defined? x)
(lookup-handle x #f))
(define (cond-expand-expander clauses)
(if (defined? (car (car clauses)))
(cdr (car clauses))
(cond-expand-expander (cdr clauses))))
(define-macro (cond-expand . clauses)
(cons 'begin (cond-expand-expander clauses)))
;; end boot-00.scm
;; boot-01.scm
(define (not x) (if x #f #t))
(define (display x . rest)
(if (null? rest) (core:display x)
(core:display-port x (car rest))))
(define (write x . rest)
(if (null? rest) (core:write x)
(core:write-port x (car rest))))
(define (newline . rest)
(core:display "\n"))
(define (cadr x) (car (cdr x)))
(define (map1 f lst)
(if (null? lst) (list)
(cons (f (car lst)) (map1 f (cdr lst)))))
(define (map f lst)
(if (null? lst) (list)
(cons (f (car lst)) (map f (cdr lst)))))
(define (cons* . rest)
(if (null? (cdr rest)) (car rest)
(cons (car rest) (core:apply cons* (cdr rest) (current-module)))))
(define (apply f h . t)
(if (null? t) (core:apply f h (current-module))
(apply f (apply cons* (cons h t)))))
(define (append . rest)
(if (null? rest) '()
(if (null? (cdr rest)) (car rest)
(append2 (car rest) (apply append (cdr rest))))))
;; end boot-01.scm
;; boot-02.scm
(define-macro (and . x)
(if (null? x) #t
(if (null? (cdr x)) (car x)
(list (quote if) (car x) (cons (quote and) (cdr x))
#f))))
(define-macro (or . x)
(if (null? x) #f
(if (null? (cdr x)) (car x)
(list (list (quote lambda) (list (quote r))
(list (quote if) (quote r) (quote r)
(cons (quote or) (cdr x))))
(car x)))))
(define-macro (mes-use-module module)
#t)
(define-macro (define-module module . rest)
#t)
;; end boot-02.scm
;; boot-03.scm
(define guile? #f)
(define mes? #t)
(define (primitive-eval e) (core:eval e (current-module)))
(define eval core:eval)
(define (port-filename port) "<stdin>")
(define (port-line port) 0)
(define (port-column port) 0)
(define (ftell port) 0)
(define (false-if-exception x) x)
(define (cons* . rest)
(if (null? (cdr rest)) (car rest)
(cons (car rest) (core:apply cons* (cdr rest) (current-module)))))
(define (apply f h . t)
(if (null? t) (core:apply f h (current-module))
(apply f (apply cons* (cons h t)))))
(define-macro (load file)
(list 'begin
(list 'if (list 'and (list getenv "MES_DEBUG")
(list not (list equal2? (list getenv "MES_DEBUG") "0"))
(list not (list equal2? (list getenv "MES_DEBUG") "1")))
(list 'begin
(list core:display-error ";;; read ")
(list core:display-error file)
(list core:display-error "\n")))
(list 'primitive-load file)))
(define-macro (include file) (list 'load file))
(define (append . rest)
(if (null? rest) '()
(if (null? (cdr rest)) (car rest)
(append2 (car rest) (apply append (cdr rest))))))
(define %moduledir (string-append %datadir "/module/"))
(include (string-append %moduledir "mes/type-0.mes"))
(if (and (getenv "MES_DEBUG")
(not (equal2? (getenv "MES_DEBUG") "0"))
(not (equal2? (getenv "MES_DEBUG") "1")))
(begin
(core:display-error ";;; %moduledir=")
(core:display-error %moduledir)
(core:display-error "\n")))
(define-macro (include-from-path file)
(list 'load (list string-append %moduledir file)))
(define (string-join lst infix)
(if (null? lst) ""
(if (null? (cdr lst)) (car lst)
(string-append (car lst) infix (string-join (cdr lst) infix)))))
(include-from-path "mes/module.mes")
(mes-use-module (mes base))
(mes-use-module (mes quasiquote))
(mes-use-module (mes let))
(mes-use-module (mes scm))
;; end boot-03.scm
(mes-use-module (srfi srfi-1))
(mes-use-module (srfi srfi-13))
(mes-use-module (mes fluids))
(mes-use-module (mes catch))
(mes-use-module (mes posix))
(mes-use-module (mes guile))
;; end boot-04.mes
;; FIXME: need no load before booting guile module -- srfi-1 stuff
(mes-use-module (mes getopt-long))
(mes-use-module (mes main))
(mes-use-module (srfi srfi-9))
(mes-use-module (mes guile module))

View File

@ -22,10 +22,36 @@
;;; Code:
(mes-use-module (srfi srfi-13))
(define-macro (cond-expand-provide . rest) #t)
(define-macro (include-from-path file)
(let loop ((path (cons* %moduledir "module" (string-split (or (getenv "GUILE_LOAD_PATH") "") #\:))))
(cond ((and=> (getenv "MES_DEBUG") (compose (lambda (o) (> o 2)) string->number))
(core:display-error (string-append "include-from-path: " file " [PATH:" (string-join path ":") "]\n")))
((and=> (getenv "MES_DEBUG") (compose (lambda (o) (> o 1)) string->number))
(core:display-error (string-append "include-from-path: " file "\n"))))
(if (null? path) (error "include-from-path: not found: " file)
(let ((file (string-append (car path) "/" file)))
(if (access? file R_OK) `(load ,file)
(loop (cdr path)))))))
(define-macro (define-module module . rest)
`(if ,(and (pair? module)
(= 1 (length module))
(symbol? (car module)))
(define (,(car module) . arguments) (main (command-line)))))
(define-macro (defmacro name args . body)
`(define-macro ,(cons name args) ,@body))
(define-macro (set-procedure-property! proc key value)
proc)
(define-macro (use-modules . rest) #t)
(define (effective-version) %version)
(mes-use-module (srfi srfi-13))
(mes-use-module (mes catch))
(mes-use-module (mes posix))
(mes-use-module (srfi srfi-16))

View File

@ -1,3 +1,5 @@
;;; -*-scheme-*-
;;; GNU Mes --- Maxwell Equations of Software
;;; Copyright (C) 1995,1996,1997,1998,1999,2000,2001,2002,2003,2004,2005,2006,2007
;;; Free Software Foundation, Inc.
@ -21,7 +23,7 @@
;;; Commentary:
;;; boot-module.mes taken from GNU Guile 1.8 boot-9.scm
;;; guile/module.mes taken from GNU Guile 1.8 boot-9.scm
;;; This is experimental code for proper Guile module load support.
;;; This file is the first thing loaded into Guile. It adds many mundane
@ -32,8 +34,6 @@
;;; Code:
(mes-use-module (mes simple-format))
(define (module? x)
(display "core:module?\n"))
@ -2746,39 +2746,6 @@
;;; Place the user in the guile-user module.
;;;
;;;(define-module (guile-user))
(define-module (guile-user))
;;; boot-9.scm ends here
(display "===============================\n")
;;(define-module (guile-user) #:use-module (boo))
(define-module (guile-user)
#:use-module (boo))
(display "\nnow in guile-user\n")
(display "keil-user: ")
(write *current-module*)
(display "\n")
(display "ZEE-MODULE:")
(display ((module-ref (guile:current-module) 'ZEE-MODULE)))
;; (display (module-ref (resolve-module '(boo)) 'ZEE-MODULE))
;; (display "\n")
;; (ZEE-MODULE)
(display "\n")
(display "bah: ")
(display (module-ref (guile:current-module) 'bah))
;;(display bah)
(display "\n")
(display "===> ZEE\n")
(display ZEE-MODULE)
(display "\n")
(display "===> (ZEE)\n")
(display (ZEE-MODULE))
(display "\n")
(display "===> (foo-bar)\n")
(display (foo-bar))
(display "\n")

116
mes/module/mes/main.mes Normal file
View File

@ -0,0 +1,116 @@
;;; -*-scheme-*-
;;; GNU Mes --- Maxwell Equations of Software
;;; Copyright © 2016,2017,2018,2019 Jan (janneke) Nieuwenhuizen <janneke@gnu.org>
;;;
;;; This file is part of GNU Mes.
;;;
;;; GNU Mes is free software; you can redistribute it and/or modify it
;;; under the terms of the GNU General Public License as published by
;;; the Free Software Foundation; either version 3 of the License, or (at
;;; your option) any later version.
;;;
;;; GNU Mes is distributed in the hope that it will be useful, but
;;; WITHOUT ANY WARRANTY; without even the implied warranty of
;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
;;; GNU General Public License for more details.
;;;
;;; You should have received a copy of the GNU General Public License
;;; along with GNU Mes. If not, see <http://www.gnu.org/licenses/>.
;;; Commentary:
;;; Code:
(mes-use-module (mes getopt-long))
(define %main #f)
(define (top-main)
(let ((tty? (isatty? 0)))
(define (parse-opts args)
(let* ((option-spec
'((no-auto-compile)
(command (single-char #\c) (value #t))
(compiled-path (single-char #\C) (value #t))
(help (single-char #\h))
(load-path (single-char #\L) (value #t))
(main (single-char #\e) (value #t))
(source (single-char #\s) (value #t))
(version (single-char #\V)))))
(getopt-long args option-spec #:stop-at-first-non-option #t)))
(define (source-arg? o)
(equal? "-s" o))
(let* ((s-index (list-index source-arg? %argv))
(args (if s-index (list-head %argv (+ s-index 2)) %argv))
(options (parse-opts args))
(command (option-ref options 'command #f))
(main (option-ref options 'main #f))
(source (option-ref options 'source #f))
(files (if s-index (list-tail %argv (+ s-index 1))
(option-ref options '() '())))
(help? (option-ref options 'help #f))
(usage? #f)
(version? (option-ref options 'version #f)))
(or
(and version?
(display (string-append "mes (GNU Mes) " %version "\n"))
(exit 0))
(and (or help? usage?)
(display "Usage: mes [OPTION]... [FILE]...
Evaluate code with Mes, interactively or from a script.
[-s] FILE load source code from FILE, and exit
-c EXPR evalute expression EXPR, and exit
-- stop scanning arguments; run interactively
The above switches stop argument processing, and pass all
remaining arguments as the value of (command-line).
-e, --main=MAIN after reading script, apply MAIN to command-line arguments
-h, --help display this help and exit
-L, --load-path=DIR add DIR to the front of the module load path
-v, --version display version information and exit
Ignored for Guile compatibility:
--auto-compile
--fresh-auto-compile
--no-auto-compile
-C, --compiled-path=DIR
Report bugs to: bug-mes@gnu.org
GNU Mes home page: <http://gnu.org/software/mes/>
General help using GNU software: <http://gnu.org/gethelp/>
" (or (and usage? (current-error-port)) (current-output-port)))
(exit (or (and usage? 2) 0)))
options)
(and=> (option-ref options 'load-path #f)
(lambda (dir)
(setenv "GUILE_LOAD_PATH" (string-append dir ":" (getenv "GUILE_LOAD_PATH")))))
(when command
(let* ((prev (set-current-input-port (open-input-string command)))
(expr (cons 'begin (read-input-file-env (current-module))))
(set-current-input-port prev))
(primitive-eval expr)
(exit 0)))
(when main (set! %main main))
(cond ((pair? files)
(display "pair!\n")
(let* ((file (car files))
(port (if (equal? file "-") 0
(open-input-file file))))
(set! %argv files)
(set-current-input-port port)
(display "DUN\n")
))
((and (null? files) tty?)
(mes-use-module (mes repl))
(set-current-input-port 0)
(repl))
(else #t))
(display "top\n")
(display "**********************load hack:\n"))))
(define (top-load *undefined*)
(primitive-load 0)
(primitive-load (open-input-string %main)))

View File

@ -24,6 +24,9 @@
;;; Code:
(define-module (srfi srfi-1)
#:export (find))
(define (find pred lst)
(let loop ((lst lst))
(if (null? lst) #f

View File

@ -25,6 +25,7 @@
;; Internal helper procedure. Map `f' over the single list `ls'.
;;
(define map1 map)
(define (any pred ls . lists)

View File

@ -0,0 +1,84 @@
;;; pmatch, a simple matcher
;;; GNU Mes --- Maxwell Equations of Software
;;; Copyright (C) 2009, 2010, 2012 Free Software Foundation, Inc
;;; Copyright (C) 2005,2006,2007 Oleg Kiselyov
;;; Copyright (C) 2007 Daniel P. Friedman
;;; Copyright (C) 2018 Jan (janneke) Nieuwenhuizen <janneke@gnu.org>
;;; Copyright © 2016,2017,2018 Jan (janneke) Nieuwenhuizen <janneke@gnu.org>
;;;
;;; This file is part of GNU Mes.
;;;
;;; GNU Mes is free software; you can redistribute it and/or modify it
;;; under the terms of the GNU General Public License as published by
;;; the Free Software Foundation; either version 3 of the License, or (at
;;; your option) any later version.
;;;
;;; GNU Mes is distributed in the hope that it will be useful, but
;;; WITHOUT ANY WARRANTY; without even the implied warranty of
;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
;;; GNU General Public License for more details.
;;;
;;; You should have received a copy of the GNU General Public License
;;; along with GNU Mes. If not, see <http://www.gnu.org/licenses/>.
;;; Taken from GNU Guile
;;; Originally written by Oleg Kiselyov for LeanTAP in Kanren, which is
;;; available under the MIT license.
;;;
;;; http://kanren.cvs.sourceforge.net/viewvc/kanren/kanren/mini/leanTAP.scm?view=log
;;;
;;; This version taken from:
;;; αKanren: A Fresh Name in Nominal Logic Programming
;;; by William E. Byrd and Daniel P. Friedman
;;; Proceedings of the 2007 Workshop on Scheme and Functional Programming
;;; Université Laval Technical Report DIUL-RT-0701
;;; To be clear: the original code is MIT-licensed, and the modifications
;;; made to it by Guile are under Guile's license (currently LGPL v3+).
;;; Code:
;; (pmatch exp <clause> ...[<else-clause>])
;; <clause> ::= (<pattern> <guard> exp ...)
;; <else-clause> ::= (else exp ...)
;; <guard> ::= boolean exp | ()
;; <pattern> :: =
;; ,var -- matches always and binds the var
;; pattern must be linear! No check is done
;; _ -- matches always
;; 'exp -- comparison with exp (using equal?) REMOVED (August 8, 2012)
;; exp -- comparison with exp (using equal?)
;; (<pattern1> <pattern2> ...) -- matches the list of patterns
;; (<pattern1> . <pattern2>) -- ditto
;; () -- matches the empty list
(define-module (system base pmatch)
#:export-syntax (pmatch))
(define-syntax pmatch
(syntax-rules (else guard)
((_ v) (if #f #f))
((_ v (else e0 e ...)) (let () e0 e ...))
((_ v (pat (guard g ...) e0 e ...) cs ...)
(let ((fk (lambda () (pmatch v cs ...))))
(ppat v pat
(if (and g ...) (let () e0 e ...) (fk))
(fk))))
((_ v (pat e0 e ...) cs ...)
(let ((fk (lambda () (pmatch v cs ...))))
(ppat v pat (let () e0 e ...) (fk))))))
(define-syntax ppat
(syntax-rules (_ quote unquote)
((_ v _ kt kf) kt)
((_ v () kt kf) (if (null? v) kt kf))
((_ v (quote lit) kt kf)
(if (equal? v (quote lit)) kt kf))
((_ v (unquote var) kt kf) (let ((var v)) kt))
((_ v (x . y) kt kf)
(if (pair? v)
(ppat (pmatch-car v) x (ppat (pmatch-cdr v) y kt kf) kf)
kf))
((_ v lit kt kf) (if (eq? v (quote lit)) kt kf))))

View File

@ -673,7 +673,7 @@ eval:
else if (global_p != 0)
{
handle = lookup_handle (name, cell_f);
if (g_debug > 0)
if (g_debug > 2)
{
eputs ("global set: ");
write_error_ (name);

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@ -68,7 +68,7 @@ module_handle (struct scm *module, struct scm *name) /*:((internal)) */
{
/* 1. Check module defines. */
struct scm *table = module_defines (module);
if (g_debug > 0)
if (g_debug > 2)
{
eputs ("module_handle:");
eputs (" name = ");

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@ -1,7 +1,7 @@
#! /bin/sh
# -*-scheme-*-
exec ${MES-bin/mes} --no-auto-compile -L ${0%/*} -L module -C module -e '(tests display)' -s "$0" "$@"
!#
;;; -*-scheme-*-
;;; GNU Mes --- Maxwell Equations of Software
@ -22,9 +22,9 @@ exec ${MES-bin/mes} --no-auto-compile -L ${0%/*} -L module -C module -e '(tests
;;; You should have received a copy of the GNU General Public License
;;; along with GNU Mes. If not, see <http://www.gnu.org/licenses/>.
(define-module (tests display)
#:use-module (mes mes-0)
#:use-module (mes test))
;; (define-module (tests display)
;; #:use-module (mes mes-0)
;; #:use-module (mes test))
(mes-use-module (mes display))
(mes-use-module (mes guile))