54 lines
1.0 KiB
C
54 lines
1.0 KiB
C
/*
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* $Id: prim_prog.c 117 2008-03-03 11:20:05Z baconevi $
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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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ase_lsp_obj_t* ase_lsp_prim_prog1 (ase_lsp_t* lsp, ase_lsp_obj_t* args)
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{
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/* (prog1 1 2 3) returns 1 */
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ase_lsp_obj_t* res = ASE_NULL, * tmp;
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/*while (args != lsp->mem->nil) {*/
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while (ASE_LSP_TYPE(args) == ASE_LSP_OBJ_CONS)
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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 (res == ASE_NULL)
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{
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res = tmp;
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if (ase_lsp_pushtmp (lsp, res) == ASE_NULL)
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{
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return ASE_NULL;
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}
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}
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args = ASE_LSP_CDR(args);
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}
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if (res != ASE_NULL) ase_lsp_poptmp (lsp);
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return res;
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}
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ase_lsp_obj_t* ase_lsp_prim_progn (ase_lsp_t* lsp, ase_lsp_obj_t* args)
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{
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/* (progn 1 2 3) returns 3 */
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ase_lsp_obj_t* res, * tmp;
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res = lsp->mem->nil;
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/*while (args != lsp->mem->nil) {*/
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while (ASE_LSP_TYPE(args) == ASE_LSP_OBJ_CONS)
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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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res = tmp;
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args = ASE_LSP_CDR(args);
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}
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return res;
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}
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