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/*
* Copyright © 2016 Keith Packard <keithp@keithp.com>
*
* This program 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 2 of the License, or
* (at your option) any later version.
*
* This program 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.
*/
#include "ao_lisp.h"
#include <stdlib.h>
#include <ctype.h>
static struct ao_lisp_builtin *
ao_lisp_make_builtin(enum ao_lisp_builtin_id func, int args) {
struct ao_lisp_builtin *b = ao_lisp_alloc(sizeof (struct ao_lisp_builtin));
b->type = AO_LISP_BUILTIN;
b->func = func;
b->args = args;
return b;
}
struct builtin_func {
char *name;
int args;
int func;
};
struct builtin_func funcs[] = {
"car", AO_LISP_LEXPR, builtin_car,
"cdr", AO_LISP_LEXPR, builtin_cdr,
"cons", AO_LISP_LEXPR, builtin_cons,
"quote", AO_LISP_NLAMBDA,builtin_quote,
"set", AO_LISP_LEXPR, builtin_set,
"setq", AO_LISP_MACRO, builtin_setq,
"cond", AO_LISP_NLAMBDA,builtin_cond,
"print", AO_LISP_LEXPR, builtin_print,
"+", AO_LISP_LEXPR, builtin_plus,
"-", AO_LISP_LEXPR, builtin_minus,
"*", AO_LISP_LEXPR, builtin_times,
"/", AO_LISP_LEXPR, builtin_divide,
"%", AO_LISP_LEXPR, builtin_mod
};
ao_poly
ao_lisp_set_cond(struct ao_lisp_cons *c)
{
(void) c;
return AO_LISP_NIL;
}
#define N_FUNC (sizeof funcs / sizeof funcs[0])
/* Syntactic atoms */
char *atoms[] = {
"lambda",
"nlambda",
"lexpr",
"macro"
};
#define N_ATOM (sizeof atoms / sizeof atoms[0])
struct ao_lisp_frame *globals;
static int
is_atom(int offset)
{
struct ao_lisp_atom *a;
for (a = ao_lisp_atoms; a; a = ao_lisp_poly_atom(a->next))
if (((uint8_t *) a->name - ao_lisp_const) == offset)
return strlen(a->name);
return 0;
}
int
main(int argc, char **argv)
{
int f, o, i;
ao_poly atom, val;
struct ao_lisp_atom *a;
struct ao_lisp_builtin *b;
int in_atom;
printf("/*\n");
printf(" * Generated file, do not edit\n");
ao_lisp_root_add(&ao_lisp_frame_type, &globals);
globals = ao_lisp_frame_new(0, 0);
for (f = 0; f < N_FUNC; f++) {
b = ao_lisp_make_builtin(funcs[f].func, funcs[f].args);
a = ao_lisp_atom_intern(funcs[f].name);
globals = ao_lisp_frame_add(globals, ao_lisp_atom_poly(a), ao_lisp_builtin_poly(b));
}
/* atoms for syntax */
for (i = 0; i < N_ATOM; i++)
(void) ao_lisp_atom_intern(atoms[i]);
/* boolean constants */
a = ao_lisp_atom_intern("nil");
globals = ao_lisp_frame_add(globals, ao_lisp_atom_poly(a), AO_LISP_NIL);
a = ao_lisp_atom_intern("t");
globals = ao_lisp_frame_add(globals, ao_lisp_atom_poly(a), ao_lisp_atom_poly(a));
for (;;) {
atom = ao_lisp_read();
if (!atom)
break;
val = ao_lisp_read();
if (!val)
break;
if (ao_lisp_poly_type(atom) != AO_LISP_ATOM) {
fprintf(stderr, "input must be atom val pairs\n");
exit(1);
}
globals = ao_lisp_frame_add(globals, atom, val);
}
/* Reduce to referenced values */
ao_lisp_collect();
printf(" */\n");
globals->readonly = 1;
printf("#define AO_LISP_POOL_CONST %d\n", ao_lisp_top);
printf("extern const uint8_t ao_lisp_const[AO_LISP_POOL_CONST] __attribute__((aligned(4)));\n");
printf("#define ao_builtin_atoms 0x%04x\n", ao_lisp_atom_poly(ao_lisp_atoms));
printf("#define ao_builtin_frame 0x%04x\n", ao_lisp_frame_poly(globals));
for (a = ao_lisp_atoms; a; a = ao_lisp_poly_atom(a->next)) {
char *n = a->name, c;
printf ("#define _ao_lisp_atom_");
while ((c = *n++)) {
if (isalnum(c))
printf("%c", c);
else
printf("%02x", c);
}
printf(" 0x%04x\n", ao_lisp_atom_poly(a));
}
printf("#ifdef AO_LISP_CONST_BITS\n");
printf("const uint8_t ao_lisp_const[] = {");
for (o = 0; o < ao_lisp_top; o++) {
uint8_t c;
if ((o & 0xf) == 0)
printf("\n\t");
else
printf(" ");
c = ao_lisp_const[o];
if (!in_atom)
in_atom = is_atom(o);
if (in_atom) {
printf (" '%c',", c);
in_atom--;
} else {
printf("0x%02x,", c);
}
}
printf("\n};\n");
printf("#endif /* AO_LISP_CONST_BITS */\n");
}
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