98f64ae516
* module/language/c99/compiler.mes (expr->accu): Add mul. (test->jump->info): Add le, ge. (ast->info): Support int and char* initialization at top level. * module/mes/as-i386.mes (i386:accu*base, i386:Xjump-cz, i386:Xjump-ncz): New function. * module/mes/as-i386.scm: Export them. * doc/examples/t.c (test): Test them. * module/mes/libc.mes (ungetc): New function. (getchar): Support it. (assert_fail, isdigit): New functions. (libc): Export them. * module/mes/mini-0.mes: Load full reader. * mlibc.c (ungetc): New function. (getchar): Support it. (assert_fail, isdigit): New functions. * mes.c (list length error lookup_ getchar ungetchar peekchar peek_byte read_byte unread_byte greater_p less_p): Move functions needed to run read-0.mes into core. * doc/examples/mini-mes.c: Likewise. * lib.c (length, error): Comment-out. * math.c (greater_p, less_p): Comment-out. * posix.c: (getchar, ungetchar, peekchar, peek_byte, read_byte, unread_byte): Comment-out. * reader.c (lookup_): Comment-out.
131 lines
2.9 KiB
C
131 lines
2.9 KiB
C
/* -*-comment-start: "//";comment-end:""-*-
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* Mes --- Maxwell Equations of Software
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* Copyright © 2016 Jan Nieuwenhuizen <janneke@gnu.org>
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*
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* This file is part of Mes.
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*
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* Mes is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 3 of the License, or (at
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* your option) any later version.
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*
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* Mes is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with Mes. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <fcntl.h>
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//MINI_MES
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// SCM
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// write_byte (SCM x) ///((arity . n))
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// {
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// SCM c = car (x);
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// SCM p = cdr (x);
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// int fd = 1;
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// if (TYPE (p) == TPAIR && TYPE (car (p)) == TNUMBER) fd = VALUE (car (p));
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// FILE *f = fd == 1 ? stdout : stderr;
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// assert (TYPE (c) == TNUMBER || TYPE (c) == TCHAR);
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// fputc (VALUE (c), f);
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// return c;
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// }
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char const* string_to_cstring (SCM);
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// SCM
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// stderr_ (SCM x)
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// {
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// SCM write;
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// if (TYPE (x) == TSTRING)
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// fprintf (stderr, string_to_cstring (x));
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// else if ((write = assq_ref_env (cell_symbol_write, r0)) != cell_undefined)
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// apply (assq_ref_env (cell_symbol_display, r0), cons (x, cons (MAKE_NUMBER (2), cell_nil)), r0);
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// else if (TYPE (x) == TSPECIAL || TYPE (x) == TSTRING || TYPE (x) == TSYMBOL)
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// fprintf (stderr, string_to_cstring (x));
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// else if (TYPE (x) == TNUMBER)
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// fprintf (stderr, "%d", VALUE (x));
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// else
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// fprintf (stderr, "display: undefined\n");
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// return cell_unspecified;
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// }
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SCM
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getenv_ (SCM s) ///((name . "getenv"))
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{
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char *p = getenv (string_to_cstring (s));
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return p ? MAKE_STRING (cstring_to_list (p)) : cell_f;
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}
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// MINI_MES
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// int
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// getchar ()
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// {
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// return getc (g_stdin);
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// }
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// int
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// ungetchar (int c)
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// {
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// return ungetc (c, g_stdin);
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// }
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// int
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// peekchar ()
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// {
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// int c = getchar ();
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// ungetchar (c);
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// return c;
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// }
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// SCM
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// peek_byte ()
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// {
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// return MAKE_NUMBER (peekchar ());
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// }
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// SCM
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// read_byte ()
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// {
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// return MAKE_NUMBER (getchar ());
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// }
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// SCM
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// unread_byte (SCM i)
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// {
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// ungetchar (VALUE (i));
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// return i;
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// }
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SCM
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force_output (SCM p) ///((arity . n))
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{
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int fd = 1;
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if (TYPE (p) == TPAIR && TYPE (car (p)) == TNUMBER) fd = VALUE (car (p));
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FILE *f = fd == 1 ? stdout : stderr;
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fflush (f);
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return cell_unspecified;
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}
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SCM
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open_input_file (SCM file_name)
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{
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return MAKE_NUMBER (open (string_to_cstring (file_name), O_RDONLY));
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}
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SCM
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current_input_port ()
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{
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return MAKE_NUMBER (fileno (g_stdin));
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}
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SCM
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set_current_input_port (SCM port)
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{
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g_stdin = VALUE (port) ? fdopen (VALUE (port), "r") : stdin;
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return current_input_port ();
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}
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