fc263de433
* .gitignore: Ignore *.o-32, mes-mini-mes. * scripts/nyacc-calc.mes: Remove. * scripts/nyacc.mes: Remove. * scripts/paren.mes: Remove. * make/install.make (install): Remove them. p* module/mes/mes-0.mes: Remove. * module/mes/loop-0.mes: Remove. * build-aux/mes-snarf.scm (main): Add --mini option. * GNUmakefile (mini-mes): Use it.
376 lines
7.9 KiB
C
376 lines
7.9 KiB
C
/* -*-comment-start: "//";comment-end:""-*-
|
|
* Mes --- Maxwell Equations of Software
|
|
* Copyright © 2016,2017 Jan Nieuwenhuizen <janneke@gnu.org>
|
|
*
|
|
* This file is part of Mes.
|
|
*
|
|
* 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.
|
|
*
|
|
* 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 Mes. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
//MINI_MES
|
|
// SCM
|
|
// length (SCM x)
|
|
// {
|
|
// int n = 0;
|
|
// while (x != cell_nil)
|
|
// {
|
|
// n++;
|
|
// if (TYPE (x) != TPAIR) return MAKE_NUMBER (-1);
|
|
// x = cdr (x);
|
|
// }
|
|
// return MAKE_NUMBER (n);
|
|
// }
|
|
|
|
SCM fdisplay_ (SCM,FILE*);
|
|
|
|
int g_depth;
|
|
|
|
SCM
|
|
display_helper (SCM x, int cont, char* sep, FILE *fd)
|
|
{
|
|
fputs (sep, fd);
|
|
if (g_depth == 0) return cell_unspecified;
|
|
g_depth = g_depth - 1;
|
|
|
|
switch (TYPE (x))
|
|
{
|
|
case TCHAR:
|
|
{
|
|
fputs ("#\\", fd);
|
|
putc (VALUE (x), fd);
|
|
break;
|
|
}
|
|
case TFUNCTION:
|
|
{
|
|
fputs ("#<procedure ", fd);
|
|
char const *p = "?";
|
|
if (FUNCTION (x).name != 0)
|
|
p = FUNCTION (x).name;
|
|
fputs (p, fd);
|
|
fputs ("[", fd);
|
|
fputs (itoa (CDR (x)), fd);
|
|
fputs (",", fd);
|
|
fputs (itoa (x), fd);
|
|
fputs ("]>", fd);
|
|
break;
|
|
}
|
|
case TMACRO:
|
|
{
|
|
fputs ("#<macro ", fd);
|
|
display_helper (cdr (x), cont, "", fd);
|
|
fputs (">", fd);
|
|
break;
|
|
}
|
|
case TNUMBER:
|
|
{
|
|
fputs (itoa (VALUE (x)), fd);
|
|
break;
|
|
}
|
|
case TPAIR:
|
|
{
|
|
if (!cont) fputs ("(", fd);
|
|
if (x && x != cell_nil) fdisplay_ (CAR (x), fd);
|
|
if (CDR (x) && TYPE (CDR (x)) == TPAIR)
|
|
display_helper (CDR (x), 1, " ", fd);
|
|
else if (CDR (x) && CDR (x) != cell_nil)
|
|
{
|
|
if (TYPE (CDR (x)) != TPAIR)
|
|
fputs (" . ", fd);
|
|
fdisplay_ (CDR (x), fd);
|
|
}
|
|
if (!cont) fputs (")", fd);
|
|
break;
|
|
}
|
|
case TSPECIAL:
|
|
#if __NYACC__
|
|
// FIXME
|
|
//{}
|
|
{
|
|
SCM t = CAR (x);
|
|
while (t && t != cell_nil)
|
|
{
|
|
putc (VALUE (CAR (t)), fd);
|
|
t = CDR (t);
|
|
}
|
|
break;
|
|
}
|
|
#endif
|
|
case TSTRING:
|
|
#if __NYACC__
|
|
// FIXME
|
|
{
|
|
SCM t = CAR (x);
|
|
while (t && t != cell_nil)
|
|
{
|
|
putc (VALUE (CAR (t)), fd);
|
|
t = CDR (t);
|
|
}
|
|
break;
|
|
}
|
|
#endif
|
|
case TSYMBOL:
|
|
{
|
|
SCM t = CAR (x);
|
|
while (t && t != cell_nil)
|
|
{
|
|
putc (VALUE (CAR (t)), fd);
|
|
t = CDR (t);
|
|
}
|
|
break;
|
|
}
|
|
default:
|
|
{
|
|
fputs ("<", fd);
|
|
fputs (itoa (TYPE (x)), fd);
|
|
fputs (":", fd);
|
|
fputs (itoa (x), fd);
|
|
fputs (">", fd);
|
|
break;
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
SCM
|
|
display_ (SCM x)
|
|
{
|
|
g_depth = 5;
|
|
return display_helper (x, 0, "", stdout);
|
|
}
|
|
|
|
SCM
|
|
display_error_ (SCM x)
|
|
{
|
|
g_depth = 5;
|
|
return display_helper (x, 0, "", stderr);
|
|
}
|
|
|
|
SCM
|
|
fdisplay_ (SCM x, FILE *fd) ///((internal))
|
|
{
|
|
g_depth = 5;
|
|
return display_helper (x, 0, "", fd);
|
|
}
|
|
|
|
SCM
|
|
exit_ (SCM x) ///((name . "exit"))
|
|
{
|
|
assert (TYPE (x) == TNUMBER);
|
|
exit (VALUE (x));
|
|
}
|
|
|
|
SCM
|
|
append (SCM x) ///((arity . n))
|
|
{
|
|
if (x == cell_nil) return cell_nil;
|
|
if (cdr (x) == cell_nil) return car (x);
|
|
return append2 (car (x), append (cdr (x)));
|
|
}
|
|
|
|
//MINI_MES
|
|
// char const*
|
|
// string_to_cstring (SCM s)
|
|
// {
|
|
// static char buf[1024];
|
|
// char *p = buf;
|
|
// s = STRING (s);
|
|
// while (s != cell_nil)
|
|
// {
|
|
// *p++ = VALUE (car (s));
|
|
// s = cdr (s);
|
|
// }
|
|
// *p = 0;
|
|
// return buf;
|
|
// }
|
|
|
|
// SCM
|
|
// error (SCM key, SCM x)
|
|
// {
|
|
// SCM throw;
|
|
// if ((throw = assq_ref_env (cell_symbol_throw, r0)) != cell_undefined)
|
|
// return apply (throw, cons (key, cons (x, cell_nil)), r0);
|
|
// assert (!"error");
|
|
// }
|
|
|
|
SCM
|
|
assert_defined (SCM x, SCM e) ///((internal))
|
|
{
|
|
if (e == cell_undefined) return error (cell_symbol_unbound_variable, x);
|
|
return e;
|
|
}
|
|
|
|
SCM
|
|
check_formals (SCM f, SCM formals, SCM args) ///((internal))
|
|
{
|
|
int flen = (TYPE (formals) == TNUMBER) ? VALUE (formals) : VALUE (length (formals));
|
|
int alen = VALUE (length (args));
|
|
if (alen != flen && alen != -1 && flen != -1)
|
|
{
|
|
char buf[1024];
|
|
sprintf (buf, "apply: wrong number of arguments; expected: %d, got: %d: ", flen, alen);
|
|
SCM e = MAKE_STRING (cstring_to_list (buf));
|
|
return error (cell_symbol_wrong_number_of_args, cons (e, f));
|
|
}
|
|
return cell_unspecified;
|
|
}
|
|
|
|
SCM
|
|
check_apply (SCM f, SCM e) ///((internal))
|
|
{
|
|
char const* type = 0;
|
|
if (f == cell_f || f == cell_t) type = "bool";
|
|
if (f == cell_nil) type = "nil";
|
|
if (f == cell_unspecified) type = "*unspecified*";
|
|
if (f == cell_undefined) type = "*undefined*";
|
|
if (TYPE (f) == TCHAR) type = "char";
|
|
if (TYPE (f) == TNUMBER) type = "number";
|
|
if (TYPE (f) == TSTRING) type = "string";
|
|
|
|
if (type)
|
|
{
|
|
char buf[1024];
|
|
sprintf (buf, "cannot apply: %s:", type);
|
|
fprintf (stderr, " [");
|
|
display_error_ (e);
|
|
fprintf (stderr, "]\n");
|
|
SCM e = MAKE_STRING (cstring_to_list (buf));
|
|
return error (cell_symbol_wrong_type_arg, cons (e, f));
|
|
}
|
|
return cell_unspecified;
|
|
}
|
|
|
|
char const*
|
|
itoa (int x)
|
|
{
|
|
static char buf[10];
|
|
char *p = buf+9;
|
|
*p-- = 0;
|
|
|
|
int sign = x < 0;
|
|
if (sign)
|
|
x = -x;
|
|
|
|
do
|
|
{
|
|
*p-- = '0' + (x % 10);
|
|
x = x / 10;
|
|
} while (x);
|
|
|
|
if (sign)
|
|
*p-- = '-';
|
|
|
|
return p+1;
|
|
}
|
|
|
|
//FILE *g_stdin;
|
|
int
|
|
dump ()
|
|
{
|
|
fputs ("program r2=", stderr);
|
|
display_error_ (r2);
|
|
fputs ("\n", stderr);
|
|
|
|
r1 = g_symbols;
|
|
gc_push_frame ();
|
|
gc ();
|
|
gc_peek_frame ();
|
|
char *p = (char*)g_cells;
|
|
fputc ('M', stdout);
|
|
fputc ('E', stdout);
|
|
fputc ('S', stdout);
|
|
fputc (g_stack >> 8, stdout);
|
|
fputc (g_stack % 256, stdout);
|
|
// See HACKING, simple crafted dump for tiny-mes.c
|
|
if (getenv ("MES_TINY"))
|
|
{
|
|
TYPE (9) = 0x2d2d2d2d;
|
|
CAR (9) = 0x2d2d2d2d;
|
|
CDR (9) = 0x3e3e3e3e;
|
|
|
|
TYPE (10) = TPAIR;
|
|
CAR (10) = 11;
|
|
CDR (10) = 12;
|
|
|
|
TYPE (11) = TCHAR;
|
|
CAR (11) = 0x58585858;
|
|
CDR (11) = 65;
|
|
|
|
TYPE (12) = TPAIR;
|
|
CAR (12) = 13;
|
|
CDR (12) = 1;
|
|
|
|
TYPE (13) = TCHAR;
|
|
CAR (11) = 0x58585858;
|
|
CDR (13) = 66;
|
|
|
|
TYPE (14) = 0x3c3c3c3c;
|
|
CAR (14) = 0x2d2d2d2d;
|
|
CDR (14) = 0x2d2d2d2d;
|
|
|
|
g_free = 15;
|
|
}
|
|
for (int i=0; i<g_free * sizeof(struct scm); i++)
|
|
fputc (*p++, stdout);
|
|
return 0;
|
|
}
|
|
|
|
SCM
|
|
load_env (SCM a) ///((internal))
|
|
{
|
|
r0 = a;
|
|
g_stdin = open ("module/mes/read-0.mes", O_RDONLY);
|
|
g_stdin = g_stdin ? g_stdin : open (PREFIX "module/mes/read-0.mes", O_RDONLY);
|
|
if (!g_function) r0 = mes_builtins (r0);
|
|
r2 = read_input_file_env (r0);
|
|
g_stdin = STDIN;
|
|
return r2;
|
|
}
|
|
|
|
SCM
|
|
bload_env (SCM a) ///((internal))
|
|
{
|
|
#if MES_MINI
|
|
g_stdin = fopen ("module/mes/read-0-32.mo", O_RDONLY);
|
|
#else
|
|
g_stdin = open ("module/mes/read-0.mo", O_RDONLY);
|
|
g_stdin = g_stdin ? g_stdin : open (PREFIX "module/mes/read-0.mo", O_RDONLY);
|
|
#endif
|
|
|
|
char *p = (char*)g_cells;
|
|
assert (getchar () == 'M');
|
|
assert (getchar () == 'E');
|
|
assert (getchar () == 'S');
|
|
g_stack = getchar () << 8;
|
|
g_stack += getchar ();
|
|
int c = getchar ();
|
|
while (c != EOF)
|
|
{
|
|
*p++ = c;
|
|
c = getchar ();
|
|
}
|
|
g_free = (p-(char*)g_cells) / sizeof (struct scm);
|
|
gc_peek_frame ();
|
|
g_symbols = r1;
|
|
g_stdin = STDIN;
|
|
r0 = mes_builtins (r0);
|
|
return r2;
|
|
}
|
|
|
|
SCM
|
|
xassq (SCM x, SCM a) ///for speed in core only
|
|
{
|
|
while (a != cell_nil && x != CDAR (a)) a = CDR (a);
|
|
return a != cell_nil ? CAR (a) : cell_f;
|
|
}
|