400 lines
8.5 KiB
C
400 lines
8.5 KiB
C
/*
|
|
* $Id: prim.c,v 1.8 2005-09-24 08:16:02 bacon Exp $
|
|
*/
|
|
|
|
#include <xp/lsp/lsp.h>
|
|
#include <xp/lsp/mem.h>
|
|
#include <xp/lsp/prim.h>
|
|
|
|
#include <xp/bas/string.h>
|
|
#include <xp/bas/assert.h>
|
|
|
|
static int __add_prim (xp_lsp_mem_t* mem,
|
|
const xp_char_t* name, xp_size_t len, xp_lsp_prim_t prim);
|
|
|
|
int xp_lsp_add_prim (
|
|
xp_lsp_t* lsp, const xp_char_t* name, xp_lsp_prim_t prim)
|
|
{
|
|
return __add_prim (lsp->mem, name, xp_strlen(name), prim);
|
|
}
|
|
|
|
int xp_lsp_remove_prim (xp_lsp_t* lsp, const xp_char_t* name)
|
|
{
|
|
// TODO:
|
|
return -1;
|
|
}
|
|
|
|
static int __add_prim (xp_lsp_mem_t* mem,
|
|
const xp_char_t* name, xp_size_t len, xp_lsp_prim_t prim)
|
|
{
|
|
xp_lsp_obj_t* n, * p;
|
|
|
|
n = xp_lsp_make_symbolx (mem, name, len);
|
|
if (n == XP_NULL) return -1;
|
|
|
|
xp_lsp_lock (n);
|
|
|
|
p = xp_lsp_make_prim (mem, prim);
|
|
if (p == XP_NULL) return -1;
|
|
|
|
xp_lsp_unlock (n);
|
|
|
|
if (xp_lsp_set_func(mem, n, p) == XP_NULL) return -1;
|
|
|
|
return 0;
|
|
}
|
|
|
|
xp_lsp_obj_t* xp_lsp_prim_abort (xp_lsp_t* lsp, xp_lsp_obj_t* args)
|
|
{
|
|
XP_LSP_PRIM_CHECK_ARG_COUNT (lsp, args, 0, 0);
|
|
lsp->errnum = XP_LSP_ERR_ABORT;
|
|
return XP_NULL;
|
|
}
|
|
|
|
xp_lsp_obj_t* xp_lsp_prim_eval (xp_lsp_t* lsp, xp_lsp_obj_t* args)
|
|
{
|
|
xp_lsp_obj_t* tmp;
|
|
|
|
XP_LSP_PRIM_CHECK_ARG_COUNT (lsp, args, 1, 1);
|
|
xp_assert (XP_LSP_TYPE(args) == XP_LSP_OBJ_CONS);
|
|
|
|
tmp = xp_lsp_eval (lsp, XP_LSP_CAR(args));
|
|
if (tmp == XP_NULL) return XP_NULL;
|
|
|
|
tmp = xp_lsp_eval (lsp, tmp);
|
|
if (tmp == XP_NULL) return XP_NULL;
|
|
|
|
return tmp;
|
|
}
|
|
|
|
xp_lsp_obj_t* xp_lsp_prim_gc (xp_lsp_t* lsp, xp_lsp_obj_t* args)
|
|
{
|
|
XP_LSP_PRIM_CHECK_ARG_COUNT (lsp, args, 0, 0);
|
|
xp_lsp_garbage_collect (lsp->mem);
|
|
return lsp->mem->nil;
|
|
}
|
|
|
|
xp_lsp_obj_t* xp_lsp_prim_cond (xp_lsp_t* lsp, xp_lsp_obj_t* args)
|
|
{
|
|
/*
|
|
* (cond
|
|
* (condition1 result1)
|
|
* (consition2 result2)
|
|
* ...
|
|
* (t resultN))
|
|
*/
|
|
|
|
xp_lsp_obj_t* tmp, * ret;
|
|
|
|
XP_LSP_PRIM_CHECK_ARG_COUNT (lsp, args, 0, XP_LSP_PRIM_MAX_ARG_COUNT);
|
|
|
|
while (XP_LSP_TYPE(args) == XP_LSP_OBJ_CONS) {
|
|
if (XP_LSP_TYPE(XP_LSP_CAR(args)) != XP_LSP_OBJ_CONS) {
|
|
lsp->errnum = XP_LSP_ERR_BAD_ARG;
|
|
return XP_NULL;
|
|
}
|
|
|
|
tmp = xp_lsp_eval (lsp, XP_LSP_CAR(XP_LSP_CAR(args)));
|
|
if (tmp == XP_NULL) return XP_NULL;
|
|
|
|
if (tmp != lsp->mem->nil) {
|
|
tmp = XP_LSP_CDR(XP_LSP_CAR(args));
|
|
ret = lsp->mem->nil;
|
|
while (XP_LSP_TYPE(tmp) == XP_LSP_OBJ_CONS) {
|
|
ret = xp_lsp_eval (lsp, XP_LSP_CAR(tmp));
|
|
if (ret == XP_NULL) return XP_NULL;
|
|
tmp = XP_LSP_CDR(tmp);
|
|
}
|
|
if (tmp != lsp->mem->nil) {
|
|
lsp->errnum = XP_LSP_ERR_BAD_ARG;
|
|
return XP_NULL;
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
args = XP_LSP_CDR(args);
|
|
}
|
|
|
|
return lsp->mem->nil;
|
|
}
|
|
|
|
xp_lsp_obj_t* xp_lsp_prim_if (xp_lsp_t* lsp, xp_lsp_obj_t* args)
|
|
{
|
|
xp_lsp_obj_t* tmp;
|
|
|
|
XP_LSP_PRIM_CHECK_ARG_COUNT (lsp, args, 2, XP_LSP_PRIM_MAX_ARG_COUNT);
|
|
xp_assert (XP_LSP_TYPE(args) == XP_LSP_OBJ_CONS);
|
|
|
|
tmp = xp_lsp_eval (lsp, XP_LSP_CAR(args));
|
|
if (tmp == XP_NULL) return XP_NULL;
|
|
|
|
if (tmp != lsp->mem->nil) {
|
|
tmp = xp_lsp_eval (lsp, XP_LSP_CAR(XP_LSP_CDR(args)));
|
|
if (tmp == XP_NULL) return XP_NULL;
|
|
return tmp;
|
|
}
|
|
else {
|
|
xp_lsp_obj_t* res = lsp->mem->nil;
|
|
|
|
tmp = XP_LSP_CDR(XP_LSP_CDR(args));
|
|
|
|
while (XP_LSP_TYPE(tmp) == XP_LSP_OBJ_CONS) {
|
|
res = xp_lsp_eval (lsp, XP_LSP_CAR(tmp));
|
|
if (res == XP_NULL) return XP_NULL;
|
|
tmp = XP_LSP_CDR(tmp);
|
|
}
|
|
if (tmp != lsp->mem->nil) {
|
|
lsp->errnum = XP_LSP_ERR_BAD_ARG;
|
|
return XP_NULL;
|
|
}
|
|
|
|
return res;
|
|
}
|
|
}
|
|
|
|
xp_lsp_obj_t* xp_lsp_prim_while (xp_lsp_t* lsp, xp_lsp_obj_t* args)
|
|
{
|
|
/*
|
|
* (setq a 1)
|
|
* (while (< a 100) (setq a (+ a 1)))
|
|
*/
|
|
|
|
xp_lsp_obj_t* tmp;
|
|
|
|
XP_LSP_PRIM_CHECK_ARG_COUNT (lsp, args, 1, XP_LSP_PRIM_MAX_ARG_COUNT);
|
|
xp_assert (XP_LSP_TYPE(args) == XP_LSP_OBJ_CONS);
|
|
|
|
for (;;) {
|
|
tmp = xp_lsp_eval (lsp, XP_LSP_CAR(args));
|
|
if (tmp == XP_NULL) return XP_NULL;
|
|
if (tmp == lsp->mem->nil) break;
|
|
|
|
tmp = XP_LSP_CDR(args);
|
|
while (XP_LSP_TYPE(tmp) == XP_LSP_OBJ_CONS) {
|
|
if (xp_lsp_eval(lsp, XP_LSP_CAR(tmp)) == XP_NULL)
|
|
return XP_NULL;
|
|
tmp = XP_LSP_CDR(tmp);
|
|
}
|
|
|
|
if (tmp != lsp->mem->nil) {
|
|
lsp->errnum = XP_LSP_ERR_BAD_ARG;
|
|
return XP_NULL;
|
|
}
|
|
}
|
|
|
|
return lsp->mem->nil;
|
|
}
|
|
|
|
xp_lsp_obj_t* xp_lsp_prim_car (xp_lsp_t* lsp, xp_lsp_obj_t* args)
|
|
{
|
|
/*
|
|
* (car '(10 20 30))
|
|
*/
|
|
|
|
xp_lsp_obj_t* tmp;
|
|
|
|
XP_LSP_PRIM_CHECK_ARG_COUNT (lsp, args, 1, 1);
|
|
xp_assert (XP_LSP_TYPE(args) == XP_LSP_OBJ_CONS);
|
|
|
|
tmp = xp_lsp_eval (lsp, XP_LSP_CAR(args));
|
|
if (tmp == XP_NULL) return XP_NULL;
|
|
if (tmp == lsp->mem->nil) return lsp->mem->nil;
|
|
|
|
if (XP_LSP_TYPE(tmp) != XP_LSP_OBJ_CONS) {
|
|
lsp->errnum = XP_LSP_ERR_BAD_ARG;
|
|
return XP_NULL;
|
|
}
|
|
|
|
return XP_LSP_CAR(tmp);
|
|
}
|
|
|
|
xp_lsp_obj_t* xp_lsp_prim_cdr (xp_lsp_t* lsp, xp_lsp_obj_t* args)
|
|
{
|
|
/*
|
|
* (cdr '(10 20 30))
|
|
*/
|
|
|
|
xp_lsp_obj_t* tmp;
|
|
|
|
XP_LSP_PRIM_CHECK_ARG_COUNT (lsp, args, 1, 1);
|
|
xp_assert (XP_LSP_TYPE(args) == XP_LSP_OBJ_CONS);
|
|
|
|
tmp = xp_lsp_eval (lsp, XP_LSP_CAR(args));
|
|
if (tmp == XP_NULL) return XP_NULL;
|
|
if (tmp == lsp->mem->nil) return lsp->mem->nil;
|
|
|
|
if (XP_LSP_TYPE(tmp) != XP_LSP_OBJ_CONS) {
|
|
lsp->errnum = XP_LSP_ERR_BAD_ARG;
|
|
return XP_NULL;
|
|
}
|
|
|
|
return XP_LSP_CDR(tmp);
|
|
}
|
|
|
|
xp_lsp_obj_t* xp_lsp_prim_cons (xp_lsp_t* lsp, xp_lsp_obj_t* args)
|
|
{
|
|
/*
|
|
* (cons 10 20)
|
|
* (cons '(10 20) 30)
|
|
*/
|
|
|
|
xp_lsp_obj_t* car, * cdr, * cons;
|
|
|
|
XP_LSP_PRIM_CHECK_ARG_COUNT (lsp, args, 2, 2);
|
|
xp_assert (XP_LSP_TYPE(args) == XP_LSP_OBJ_CONS);
|
|
|
|
car = xp_lsp_eval (lsp, XP_LSP_CAR(args));
|
|
if (car == XP_NULL) return XP_NULL;
|
|
|
|
cdr = xp_lsp_eval (lsp, XP_LSP_CAR(XP_LSP_CDR(args)));
|
|
if (cdr == XP_NULL) return XP_NULL;
|
|
|
|
cons = xp_lsp_make_cons (lsp->mem, car, cdr);
|
|
if (cons == XP_NULL) {
|
|
lsp->errnum = XP_LSP_ERR_MEMORY;
|
|
return XP_NULL;
|
|
}
|
|
|
|
return cons;
|
|
}
|
|
|
|
xp_lsp_obj_t* xp_lsp_prim_set (xp_lsp_t* lsp, xp_lsp_obj_t* args)
|
|
{
|
|
/*
|
|
* (set 'flowers 'rose)
|
|
* (set flowers 20)
|
|
* (rose)
|
|
*/
|
|
|
|
xp_lsp_obj_t* p1, * p2;
|
|
|
|
XP_LSP_PRIM_CHECK_ARG_COUNT (lsp, args, 2, 2);
|
|
xp_assert (XP_LSP_TYPE(args) == XP_LSP_OBJ_CONS);
|
|
|
|
p1 = xp_lsp_eval (lsp, XP_LSP_CAR(args));
|
|
if (p1 == XP_NULL) return XP_NULL;
|
|
|
|
if (XP_LSP_TYPE(p1) != XP_LSP_OBJ_SYMBOL) {
|
|
lsp->errnum = XP_LSP_ERR_BAD_ARG;
|
|
return XP_NULL;
|
|
}
|
|
|
|
p2 = xp_lsp_eval (lsp, XP_LSP_CAR(XP_LSP_CDR(args)));
|
|
if (p2 == XP_NULL) return XP_NULL;
|
|
|
|
if (xp_lsp_set_value (lsp->mem, p1, p2) == XP_NULL) {
|
|
lsp->errnum = XP_LSP_ERR_MEMORY;
|
|
return XP_NULL;
|
|
}
|
|
|
|
return p2;
|
|
}
|
|
|
|
xp_lsp_obj_t* xp_lsp_prim_setq (xp_lsp_t* lsp, xp_lsp_obj_t* args)
|
|
{
|
|
/*
|
|
* (setq x 10)
|
|
* (setq x "stirng")
|
|
*/
|
|
|
|
xp_lsp_obj_t* p = args, * p1, * p2 = lsp->mem->nil;
|
|
|
|
while (p != lsp->mem->nil) {
|
|
xp_assert (XP_LSP_TYPE(p) == XP_LSP_OBJ_CONS);
|
|
|
|
p1 = XP_LSP_CAR(p);
|
|
if (XP_LSP_TYPE(p1) != XP_LSP_OBJ_SYMBOL) {
|
|
lsp->errnum = XP_LSP_ERR_BAD_ARG;
|
|
return XP_NULL;
|
|
}
|
|
|
|
if (XP_LSP_TYPE(XP_LSP_CDR(p)) != XP_LSP_OBJ_CONS) {
|
|
lsp->errnum = XP_LSP_ERR_TOO_FEW_ARGS;
|
|
return XP_NULL;
|
|
}
|
|
|
|
p2 = xp_lsp_eval (lsp, XP_LSP_CAR(XP_LSP_CDR(p)));
|
|
if (p2 == XP_NULL) return XP_NULL;
|
|
|
|
if (xp_lsp_set_value (lsp->mem, p1, p2) == XP_NULL) {
|
|
lsp->errnum = XP_LSP_ERR_MEMORY;
|
|
return XP_NULL;
|
|
}
|
|
|
|
p = XP_LSP_CDR(XP_LSP_CDR(p));
|
|
}
|
|
|
|
return p2;
|
|
}
|
|
|
|
xp_lsp_obj_t* xp_lsp_prim_quote (xp_lsp_t* lsp, xp_lsp_obj_t* args)
|
|
{
|
|
/*
|
|
* (quote (10 20 30 50))
|
|
*/
|
|
|
|
XP_LSP_PRIM_CHECK_ARG_COUNT (lsp, args, 1, 1);
|
|
xp_assert (XP_LSP_TYPE(args) == XP_LSP_OBJ_CONS);
|
|
return XP_LSP_CAR(args);
|
|
}
|
|
|
|
xp_lsp_obj_t* xp_lsp_prim_defun (xp_lsp_t* lsp, xp_lsp_obj_t* args)
|
|
{
|
|
/*
|
|
* (defun x (a b) (+ a b 100))
|
|
* (x 40 50)
|
|
*
|
|
* (setq x (lambda (x y) (setq temp 10) (+ x y temp)))
|
|
* (x 40 50)
|
|
* temp
|
|
*/
|
|
|
|
xp_lsp_obj_t* name, * fun;
|
|
|
|
XP_LSP_PRIM_CHECK_ARG_COUNT (lsp, args, 3, XP_LSP_PRIM_MAX_ARG_COUNT);
|
|
|
|
name = XP_LSP_CAR(args);
|
|
if (XP_LSP_TYPE(name) != XP_LSP_OBJ_SYMBOL) {
|
|
lsp->errnum = XP_LSP_ERR_BAD_ARG;
|
|
return XP_NULL;
|
|
}
|
|
|
|
fun = xp_lsp_make_func (lsp->mem,
|
|
XP_LSP_CAR(XP_LSP_CDR(args)), XP_LSP_CDR(XP_LSP_CDR(args)));
|
|
if (fun == XP_NULL) return XP_NULL;
|
|
|
|
if (xp_lsp_set_func (lsp->mem, XP_LSP_CAR(args), fun) == XP_NULL) {
|
|
lsp->errnum = XP_LSP_ERR_MEMORY;
|
|
return XP_NULL;
|
|
}
|
|
return fun;
|
|
}
|
|
|
|
xp_lsp_obj_t* xp_lsp_prim_demac (xp_lsp_t* lsp, xp_lsp_obj_t* args)
|
|
{
|
|
/*
|
|
* (demac x (abc) x y z)
|
|
*(setq x (macro (abc) x y z))
|
|
*/
|
|
|
|
xp_lsp_obj_t* name, * mac;
|
|
|
|
XP_LSP_PRIM_CHECK_ARG_COUNT (lsp, args, 3, XP_LSP_PRIM_MAX_ARG_COUNT);
|
|
|
|
name = XP_LSP_CAR(args);
|
|
if (XP_LSP_TYPE(name) != XP_LSP_OBJ_SYMBOL) {
|
|
lsp->errnum = XP_LSP_ERR_BAD_ARG;
|
|
return XP_NULL;
|
|
}
|
|
|
|
mac = xp_lsp_make_macro (lsp->mem,
|
|
XP_LSP_CAR(XP_LSP_CDR(args)), XP_LSP_CDR(XP_LSP_CDR(args)));
|
|
if (mac == XP_NULL) return XP_NULL;
|
|
|
|
if (xp_lsp_set_func (lsp->mem, XP_LSP_CAR(args), mac) == XP_NULL) {
|
|
lsp->errnum = XP_LSP_ERR_MEMORY;
|
|
return XP_NULL;
|
|
}
|
|
return mac;
|
|
}
|