622 lines
13 KiB
C
622 lines
13 KiB
C
/*
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* $Id: prim.c,v 1.24 2007-03-07 12:14:29 bacon Exp $
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*
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* {License}
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*/
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#include <ase/lsp/lsp_i.h>
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static int __add_prim (ase_lsp_mem_t* mem,
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const ase_char_t* name, ase_size_t len,
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ase_lsp_prim_t pimpl, ase_size_t min_args, ase_size_t max_args);
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int ase_lsp_addprim (
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ase_lsp_t* lsp, const ase_char_t* name, ase_size_t name_len,
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ase_lsp_prim_t prim, ase_size_t min_args, ase_size_t max_args)
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{
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return __add_prim (lsp->mem, name, name_len, prim, min_args, max_args);
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}
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int ase_lsp_removeprim (ase_lsp_t* lsp, const ase_char_t* name)
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{
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// TODO:
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return -1;
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}
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static int __add_prim (ase_lsp_mem_t* mem,
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const ase_char_t* name, ase_size_t name_len,
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ase_lsp_prim_t pimpl, ase_size_t min_args, ase_size_t max_args)
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{
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ase_lsp_obj_t* n, * p;
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n = ase_lsp_makesym (mem, name, name_len);
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if (n == ASE_NULL) return -1;
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if (ase_lsp_pushtmp (mem->lsp, n) == ASE_NULL) return -1;
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p = ase_lsp_makeprim (mem, pimpl, min_args, max_args);
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if (p == ASE_NULL)
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{
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ase_lsp_poptmp (mem->lsp);
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return -1;
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}
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if (ase_lsp_pushtmp (mem->lsp, p) == ASE_NULL)
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{
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ase_lsp_poptmp (mem->lsp);
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return -1;
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}
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if (ase_lsp_setfunc(mem, n, p) == ASE_NULL)
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{
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ase_lsp_poptmp (mem->lsp);
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ase_lsp_poptmp (mem->lsp);
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return -1;
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}
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ase_lsp_poptmp (mem->lsp);
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ase_lsp_poptmp (mem->lsp);
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return 0;
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}
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ase_lsp_obj_t* ase_lsp_prim_exit (ase_lsp_t* lsp, ase_lsp_obj_t* args)
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{
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lsp->errnum = ASE_LSP_EEXIT;
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return ASE_NULL;
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}
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ase_lsp_obj_t* ase_lsp_prim_eval (ase_lsp_t* lsp, ase_lsp_obj_t* args)
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{
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ase_lsp_obj_t* tmp1, * tmp2;
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ASE_ASSERT (ASE_LSP_TYPE(args) == ASE_LSP_OBJ_CONS);
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tmp1 = ase_lsp_eval (lsp, ASE_LSP_CAR(args));
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if (tmp1 == ASE_NULL) return ASE_NULL;
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if (ase_lsp_pushtmp (lsp, tmp1) == ASE_NULL) return ASE_NULL;
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tmp2 = ase_lsp_eval (lsp, tmp1);
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if (tmp2 == ASE_NULL)
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{
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ase_lsp_poptmp (lsp);
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return ASE_NULL;
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}
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ase_lsp_poptmp (lsp);
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return tmp2;
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}
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ase_lsp_obj_t* ase_lsp_prim_gc (ase_lsp_t* lsp, ase_lsp_obj_t* args)
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{
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ase_lsp_gc (lsp->mem);
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return lsp->mem->nil;
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}
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ase_lsp_obj_t* ase_lsp_prim_cond (ase_lsp_t* lsp, ase_lsp_obj_t* args)
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{
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/*
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* (cond
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* (condition1 result1)
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* (consition2 result2)
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* ...
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* (t resultN))
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*/
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ase_lsp_obj_t* tmp, * ret;
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while (ASE_LSP_TYPE(args) == ASE_LSP_OBJ_CONS)
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{
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if (ASE_LSP_TYPE(ASE_LSP_CAR(args)) != ASE_LSP_OBJ_CONS)
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{
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ase_lsp_seterror (lsp, ASE_LSP_EARGBAD, ASE_NULL, 0);
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return ASE_NULL;
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}
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tmp = ase_lsp_eval (lsp, ASE_LSP_CAR(ASE_LSP_CAR(args)));
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if (tmp == ASE_NULL) return ASE_NULL;
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if (ase_lsp_pushtmp (lsp, tmp) == ASE_NULL) return ASE_NULL;
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if (tmp != lsp->mem->nil)
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{
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int f = 0;
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tmp = ASE_LSP_CDR(ASE_LSP_CAR(args));
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ret = lsp->mem->nil;
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while (ASE_LSP_TYPE(tmp) == ASE_LSP_OBJ_CONS)
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{
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ret = ase_lsp_eval (lsp, ASE_LSP_CAR(tmp));
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if (ret == ASE_NULL)
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{
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if (!f) ase_lsp_poptmp (lsp); /* ret */
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ase_lsp_poptmp (lsp); /* tmp */
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return ASE_NULL;
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}
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if (!f) ase_lsp_poptmp (lsp); /* ret */
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if (ase_lsp_pushtmp (lsp, ret) == ASE_NULL)
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{
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ase_lsp_poptmp (lsp); /* tmp */
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return ASE_NULL;
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}
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f = 1;
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tmp = ASE_LSP_CDR(tmp);
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}
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if (tmp != lsp->mem->nil)
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{
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if (!f) ase_lsp_poptmp (lsp); /* ret */
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ase_lsp_poptmp (lsp); /* tmp */
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ase_lsp_seterror (lsp, ASE_LSP_EARGBAD, ASE_NULL, 0);
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return ASE_NULL;
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}
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if (!f) ase_lsp_poptmp (lsp); /* ret */
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ase_lsp_poptmp (lsp); /* tmp */
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return ret;
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}
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ase_lsp_poptmp (lsp); /* tmp */
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args = ASE_LSP_CDR(args);
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}
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return lsp->mem->nil;
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}
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ase_lsp_obj_t* ase_lsp_prim_if (ase_lsp_t* lsp, ase_lsp_obj_t* args)
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{
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ase_lsp_obj_t* tmp;
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ASE_ASSERT (ASE_LSP_TYPE(args) == ASE_LSP_OBJ_CONS);
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tmp = ase_lsp_eval (lsp, ASE_LSP_CAR(args));
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if (tmp == ASE_NULL) return ASE_NULL;
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if (ase_lsp_pushtmp (lsp, tmp) == ASE_NULL) return ASE_NULL;
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if (tmp != lsp->mem->nil)
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{
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tmp = ase_lsp_eval (lsp, ASE_LSP_CAR(ASE_LSP_CDR(args)));
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if (tmp == ASE_NULL)
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{
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ase_lsp_poptmp (lsp); /* tmp */
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return ASE_NULL;
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}
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ase_lsp_poptmp (lsp); /* tmp */
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return tmp;
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}
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else
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{
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ase_lsp_obj_t* res = lsp->mem->nil;
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int f = 0;
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tmp = ASE_LSP_CDR(ASE_LSP_CDR(args));
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while (ASE_LSP_TYPE(tmp) == ASE_LSP_OBJ_CONS)
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{
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res = ase_lsp_eval (lsp, ASE_LSP_CAR(tmp));
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if (res == ASE_NULL)
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{
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if (!f) ase_lsp_poptmp (lsp); /* res */
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ase_lsp_poptmp (lsp); /* tmp */
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return ASE_NULL;
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}
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if (!f) ase_lsp_poptmp (lsp); /* res */
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if (ase_lsp_pushtmp (lsp, res) == ASE_NULL)
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{
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ase_lsp_poptmp (lsp); /* tmp */
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return ASE_NULL;
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}
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f = 1;
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tmp = ASE_LSP_CDR(tmp);
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}
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if (tmp != lsp->mem->nil)
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{
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if (!f) ase_lsp_poptmp (lsp); /* ret */
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ase_lsp_poptmp (lsp); /* tmp */
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ase_lsp_seterror (lsp, ASE_LSP_EARGBAD, ASE_NULL, 0);
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return ASE_NULL;
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}
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if (!f) ase_lsp_poptmp (lsp); /* ret */
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ase_lsp_poptmp (lsp); /* tmp */
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return res;
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}
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}
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ase_lsp_obj_t* ase_lsp_prim_while (ase_lsp_t* lsp, ase_lsp_obj_t* args)
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{
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/*
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* (setq a 1)
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* (while (< a 100) (setq a (+ a 1)))
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*/
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ase_lsp_obj_t* tmp;
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ASE_ASSERT (ASE_LSP_TYPE(args) == ASE_LSP_OBJ_CONS);
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while (1)
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{
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tmp = ase_lsp_eval (lsp, ASE_LSP_CAR(args));
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if (tmp == ASE_NULL) return ASE_NULL;
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if (tmp == lsp->mem->nil) break;
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if (ase_lsp_pushtmp (lsp, tmp) == ASE_NULL) return ASE_NULL;
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tmp = ASE_LSP_CDR(args);
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while (ASE_LSP_TYPE(tmp) == ASE_LSP_OBJ_CONS)
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{
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if (ase_lsp_eval(lsp, ASE_LSP_CAR(tmp)) == ASE_NULL)
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{
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ase_lsp_poptmp (lsp); /* tmp */
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return ASE_NULL;
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}
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tmp = ASE_LSP_CDR(tmp);
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}
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if (tmp != lsp->mem->nil)
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{
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ase_lsp_poptmp (lsp); /* tmp */
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ase_lsp_seterror (lsp, ASE_LSP_EARGBAD, ASE_NULL, 0);
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return ASE_NULL;
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}
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ase_lsp_poptmp (lsp); /* tmp */
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}
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return lsp->mem->nil;
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}
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ase_lsp_obj_t* ase_lsp_prim_car (ase_lsp_t* lsp, ase_lsp_obj_t* args)
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{
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/*
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* (car '(10 20 30))
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*/
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ase_lsp_obj_t* tmp;
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ASE_ASSERT (ASE_LSP_TYPE(args) == ASE_LSP_OBJ_CONS);
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tmp = ase_lsp_eval (lsp, ASE_LSP_CAR(args));
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if (tmp == ASE_NULL) return ASE_NULL;
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if (tmp == lsp->mem->nil) return lsp->mem->nil;
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if (ASE_LSP_TYPE(tmp) != ASE_LSP_OBJ_CONS)
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{
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ase_lsp_seterror (lsp, ASE_LSP_EARGBAD, ASE_NULL, 0);
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return ASE_NULL;
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}
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return ASE_LSP_CAR(tmp);
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}
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ase_lsp_obj_t* ase_lsp_prim_cdr (ase_lsp_t* lsp, ase_lsp_obj_t* args)
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{
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/*
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* (cdr '(10 20 30))
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*/
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ase_lsp_obj_t* tmp;
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ASE_ASSERT (ASE_LSP_TYPE(args) == ASE_LSP_OBJ_CONS);
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tmp = ase_lsp_eval (lsp, ASE_LSP_CAR(args));
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if (tmp == ASE_NULL) return ASE_NULL;
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if (tmp == lsp->mem->nil) return lsp->mem->nil;
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if (ASE_LSP_TYPE(tmp) != ASE_LSP_OBJ_CONS)
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{
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ase_lsp_seterror (lsp, ASE_LSP_EARGBAD, ASE_NULL, 0);
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return ASE_NULL;
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}
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return ASE_LSP_CDR(tmp);
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}
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ase_lsp_obj_t* ase_lsp_prim_cons (ase_lsp_t* lsp, ase_lsp_obj_t* args)
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{
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/*
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* (cons 10 20)
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* (cons '(10 20) 30)
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*/
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ase_lsp_obj_t* car, * cdr, * cons;
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ASE_ASSERT (ASE_LSP_TYPE(args) == ASE_LSP_OBJ_CONS);
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car = ase_lsp_eval (lsp, ASE_LSP_CAR(args));
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if (car == ASE_NULL) return ASE_NULL;
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if (ase_lsp_pushtmp (lsp, car) == ASE_NULL) return ASE_NULL;
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cdr = ase_lsp_eval (lsp, ASE_LSP_CAR(ASE_LSP_CDR(args)));
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if (cdr == ASE_NULL)
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{
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ase_lsp_poptmp (lsp); /* car */
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return ASE_NULL;
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}
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if (ase_lsp_pushtmp (lsp, cdr) == ASE_NULL)
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{
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ase_lsp_poptmp (lsp); /* car */
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return ASE_NULL;
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}
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cons = ase_lsp_makecons (lsp->mem, car, cdr);
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if (cons == ASE_NULL)
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{
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ase_lsp_poptmp (lsp); /* cdr */
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ase_lsp_poptmp (lsp); /* car */
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return ASE_NULL;
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}
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ase_lsp_poptmp (lsp); /* cdr */
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ase_lsp_poptmp (lsp); /* car */
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return cons;
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}
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ase_lsp_obj_t* ase_lsp_prim_length (ase_lsp_t* lsp, ase_lsp_obj_t* args)
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{
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ase_lsp_obj_t* body, * tmp;
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ase_long_t len = 0;
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ASE_ASSERT (ASE_LSP_TYPE(args) == ASE_LSP_OBJ_CONS);
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body = args;
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while (ASE_LSP_TYPE(body) == ASE_LSP_OBJ_CONS)
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{
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tmp = ase_lsp_eval (lsp, ASE_LSP_CAR(body));
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if (tmp == ASE_NULL) return ASE_NULL;
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if (ASE_LSP_TYPE(tmp) == ASE_LSP_OBJ_NIL)
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{
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len = 0;
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}
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else if (ASE_LSP_TYPE(tmp) == ASE_LSP_OBJ_STR)
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{
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len = ASE_LSP_STRLEN(tmp);
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}
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else if (ASE_LSP_TYPE(tmp) == ASE_LSP_OBJ_SYM)
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{
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len = ASE_LSP_SYMLEN(tmp);
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}
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else if (ASE_LSP_TYPE(tmp) == ASE_LSP_OBJ_CONS)
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{
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len = 0;
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do
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{
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len++;
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tmp = ASE_LSP_CDR(tmp);
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}
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while (ASE_LSP_TYPE(tmp) == ASE_LSP_OBJ_CONS);
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/* TODO: more flexible without the check below?
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* both of the following expression evalute
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* to 3 without it.
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* (length '(9 9 9 . 9))
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* (length '(9 9 9))
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*/
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if (ASE_LSP_TYPE(tmp) != ASE_LSP_OBJ_NIL)
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{
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ase_lsp_seterror (lsp, ASE_LSP_EVALBAD, ASE_NULL, 0);
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return ASE_NULL;
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}
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}
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else
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{
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ase_lsp_seterror (lsp, ASE_LSP_EVALBAD, ASE_NULL, 0);
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return ASE_NULL;
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}
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body = ASE_LSP_CDR(body);
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}
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ASE_ASSERT (body == lsp->mem->nil);
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return ase_lsp_makeintobj (lsp->mem, len);
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}
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ase_lsp_obj_t* ase_lsp_prim_set (ase_lsp_t* lsp, ase_lsp_obj_t* args)
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{
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/*
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* (set 'flowers 'rose)
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* (set flowers 20)
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* rose
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*/
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ase_lsp_obj_t* p1, * p2;
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ASE_ASSERT (ASE_LSP_TYPE(args) == ASE_LSP_OBJ_CONS);
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p1 = ase_lsp_eval (lsp, ASE_LSP_CAR(args));
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if (p1 == ASE_NULL) return ASE_NULL;
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if (ase_lsp_pushtmp (lsp, p1) == ASE_NULL) return ASE_NULL;
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if (ASE_LSP_TYPE(p1) != ASE_LSP_OBJ_SYM)
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{
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ase_lsp_poptmp (lsp); /* p1 */
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ase_lsp_seterror (lsp, ASE_LSP_EARGBAD, ASE_NULL, 0);
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return ASE_NULL;
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}
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p2 = ase_lsp_eval (lsp, ASE_LSP_CAR(ASE_LSP_CDR(args)));
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if (p2 == ASE_NULL)
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{
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ase_lsp_poptmp (lsp); /* p1 */
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return ASE_NULL;
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}
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if (ase_lsp_pushtmp (lsp, p2) == ASE_NULL)
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{
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ase_lsp_poptmp (lsp); /* p1 */
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return ASE_NULL;
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}
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if (ase_lsp_setvalue (lsp->mem, p1, p2) == ASE_NULL)
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{
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ase_lsp_poptmp (lsp); /* p2 */
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ase_lsp_poptmp (lsp); /* p1 */
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return ASE_NULL;
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}
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ase_lsp_poptmp (lsp); /* p2 */
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ase_lsp_poptmp (lsp); /* p1 */
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return p2;
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}
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ase_lsp_obj_t* ase_lsp_prim_setq (ase_lsp_t* lsp, ase_lsp_obj_t* args)
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{
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/*
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* (setq x 10)
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* (setq x "string")
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*/
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ase_lsp_obj_t* p = args, * p1, * p2 = lsp->mem->nil;
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while (p != lsp->mem->nil)
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{
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ASE_ASSERT (ASE_LSP_TYPE(p) == ASE_LSP_OBJ_CONS);
|
|
|
|
p1 = ASE_LSP_CAR(p);
|
|
if (ASE_LSP_TYPE(p1) != ASE_LSP_OBJ_SYM)
|
|
{
|
|
ase_lsp_seterror (lsp, ASE_LSP_EARGBAD, ASE_NULL, 0);
|
|
return ASE_NULL;
|
|
}
|
|
|
|
if (ASE_LSP_TYPE(ASE_LSP_CDR(p)) != ASE_LSP_OBJ_CONS)
|
|
{
|
|
lsp->errnum = ASE_LSP_EARGFEW;
|
|
return ASE_NULL;
|
|
}
|
|
|
|
p2 = ase_lsp_eval (lsp, ASE_LSP_CAR(ASE_LSP_CDR(p)));
|
|
if (p2 == ASE_NULL) return ASE_NULL;
|
|
|
|
if (ase_lsp_pushtmp (lsp, p2) == ASE_NULL) return ASE_NULL;
|
|
|
|
if (ase_lsp_setvalue (lsp->mem, p1, p2) == ASE_NULL)
|
|
{
|
|
ase_lsp_poptmp (lsp);
|
|
return ASE_NULL;
|
|
}
|
|
|
|
ase_lsp_poptmp (lsp);
|
|
p = ASE_LSP_CDR(ASE_LSP_CDR(p));
|
|
}
|
|
|
|
return p2;
|
|
}
|
|
|
|
ase_lsp_obj_t* ase_lsp_prim_quote (ase_lsp_t* lsp, ase_lsp_obj_t* args)
|
|
{
|
|
/*
|
|
* (quote (10 20 30 50))
|
|
*/
|
|
|
|
ASE_ASSERT (ASE_LSP_TYPE(args) == ASE_LSP_OBJ_CONS);
|
|
return ASE_LSP_CAR(args);
|
|
}
|
|
|
|
ase_lsp_obj_t* ase_lsp_prim_defun (ase_lsp_t* lsp, ase_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
|
|
*/
|
|
|
|
ase_lsp_obj_t* name, * fun;
|
|
|
|
name = ASE_LSP_CAR(args);
|
|
if (ASE_LSP_TYPE(name) != ASE_LSP_OBJ_SYM)
|
|
{
|
|
ase_lsp_seterror (lsp, ASE_LSP_EARGBAD, ASE_NULL, 0);
|
|
return ASE_NULL;
|
|
}
|
|
|
|
fun = ase_lsp_makefunc (lsp->mem,
|
|
ASE_LSP_CAR(ASE_LSP_CDR(args)), ASE_LSP_CDR(ASE_LSP_CDR(args)));
|
|
if (fun == ASE_NULL) return ASE_NULL;
|
|
|
|
if (ase_lsp_pushtmp (lsp, fun) == ASE_NULL) return ASE_NULL;
|
|
|
|
if (ase_lsp_setfunc (lsp->mem, ASE_LSP_CAR(args), fun) == ASE_NULL)
|
|
{
|
|
ase_lsp_poptmp (lsp);
|
|
return ASE_NULL;
|
|
}
|
|
|
|
ase_lsp_poptmp (lsp);
|
|
return fun;
|
|
}
|
|
|
|
ase_lsp_obj_t* ase_lsp_prim_demac (ase_lsp_t* lsp, ase_lsp_obj_t* args)
|
|
{
|
|
/*
|
|
* (demac x (abc) x y z)
|
|
* (setq x (macro (abc) x y z))
|
|
*/
|
|
|
|
ase_lsp_obj_t* name, * mac;
|
|
|
|
name = ASE_LSP_CAR(args);
|
|
if (ASE_LSP_TYPE(name) != ASE_LSP_OBJ_SYM)
|
|
{
|
|
ase_lsp_seterror (lsp, ASE_LSP_EARGBAD, ASE_NULL, 0);
|
|
return ASE_NULL;
|
|
}
|
|
|
|
mac = ase_lsp_makemacro (lsp->mem,
|
|
ASE_LSP_CAR(ASE_LSP_CDR(args)), ASE_LSP_CDR(ASE_LSP_CDR(args)));
|
|
if (mac == ASE_NULL) return ASE_NULL;
|
|
|
|
if (ase_lsp_pushtmp (lsp, mac) == ASE_NULL) return ASE_NULL;
|
|
|
|
if (ase_lsp_setfunc (lsp->mem, ASE_LSP_CAR(args), mac) == ASE_NULL)
|
|
{
|
|
ase_lsp_poptmp (lsp);
|
|
return ASE_NULL;
|
|
}
|
|
|
|
ase_lsp_poptmp (lsp);
|
|
return mac;
|
|
}
|
|
|
|
ase_lsp_obj_t* ase_lsp_prim_or (ase_lsp_t* lsp, ase_lsp_obj_t* args)
|
|
{
|
|
/*
|
|
* (or 10 20 30 40)
|
|
* (or (= n 20) (= n 30))
|
|
*/
|
|
ase_lsp_obj_t* tmp;
|
|
|
|
/* TODO: this is wrong. redo the work */
|
|
while (ASE_LSP_TYPE(args) == ASE_LSP_OBJ_CONS)
|
|
{
|
|
tmp = ase_lsp_eval (lsp, ASE_LSP_CAR(args));
|
|
if (tmp == ASE_NULL) return ASE_NULL;
|
|
|
|
if (ASE_LSP_TYPE(args) == ASE_LSP_OBJ_INT)
|
|
if (tmp != lsp->mem->nil) return lsp->mem->t;
|
|
args = ASE_LSP_CDR(args);
|
|
}
|
|
|
|
return lsp->mem->nil;
|
|
}
|
|
|