232 lines
6.3 KiB
C
232 lines
6.3 KiB
C
/*
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* $Id: lsp.c 337 2008-08-20 09:17:25Z baconevi $
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*
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* {License}
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*/
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#if defined(__BORLANDC__)
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#pragma hdrstop
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#define Library
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#endif
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#include "lsp.h"
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static int __add_builtin_prims (ase_lsp_t* lsp);
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ase_lsp_t* ase_lsp_open (
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const ase_lsp_prmfns_t* prmfns,
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ase_size_t mem_ubound, ase_size_t mem_ubound_inc)
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{
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ase_lsp_t* lsp;
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if (prmfns == ASE_NULL) return ASE_NULL;
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/*
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if (prmfns->mmgr.malloc == ASE_NULL ||
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prmfns->mmgr.realloc == ASE_NULL ||
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prmfns->mmgr.free == ASE_NULL) return ASE_NULL;
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if (prmfns->ccls.is_upper == ASE_NULL ||
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prmfns->ccls.is_lower == ASE_NULL ||
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prmfns->ccls.is_alpha == ASE_NULL ||
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prmfns->ccls.is_digit == ASE_NULL ||
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prmfns->ccls.is_xdigit == ASE_NULL ||
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prmfns->ccls.is_alnum == ASE_NULL ||
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prmfns->ccls.is_space == ASE_NULL ||
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prmfns->ccls.is_print == ASE_NULL ||
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prmfns->ccls.is_graph == ASE_NULL ||
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prmfns->ccls.is_cntrl == ASE_NULL ||
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prmfns->ccls.is_punct == ASE_NULL ||
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prmfns->ccls.to_upper == ASE_NULL ||
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prmfns->ccls.to_lower == ASE_NULL) return ASE_NULL;
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*/
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if (prmfns->misc.sprintf == ASE_NULL ||
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prmfns->misc.dprintf == ASE_NULL) return ASE_NULL;
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#if defined(_WIN32) && defined(_MSC_VER) && defined(_DEBUG)
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lsp = (ase_lsp_t*) malloc (ASE_SIZEOF(ase_lsp_t));
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#else
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lsp = (ase_lsp_t*) prmfns->mmgr.alloc (
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prmfns->mmgr.data, ASE_SIZEOF(ase_lsp_t));
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#endif
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if (lsp == ASE_NULL) return ASE_NULL;
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/* it uses the built-in ase_lsp_memset because lsp is not
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* fully initialized yet */
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ASE_MEMSET (lsp, 0, ASE_SIZEOF(ase_lsp_t));
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ASE_MEMCPY (&lsp->prmfns, prmfns, ASE_SIZEOF(lsp->prmfns));
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lsp->assoc_data = ASE_NULL;
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if (ase_lsp_name_open(&lsp->token.name, 0, lsp) == ASE_NULL)
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{
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ASE_LSP_FREE (lsp, lsp);
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return ASE_NULL;
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}
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lsp->errnum = ASE_LSP_ENOERR;
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lsp->errmsg[0] = ASE_T('\0');
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lsp->opt_undef_symbol = 1;
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/*lsp->opt_undef_symbol = 0;*/
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lsp->curc = ASE_CHAR_EOF;
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lsp->input_func = ASE_NULL;
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lsp->output_func = ASE_NULL;
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lsp->input_arg = ASE_NULL;
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lsp->output_arg = ASE_NULL;
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lsp->mem = ase_lsp_openmem (lsp, mem_ubound, mem_ubound_inc);
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if (lsp->mem == ASE_NULL)
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{
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ase_lsp_name_close (&lsp->token.name);
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ASE_LSP_FREE (lsp, lsp);
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return ASE_NULL;
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}
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if (__add_builtin_prims(lsp) == -1)
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{
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ase_lsp_closemem (lsp->mem);
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ase_lsp_name_close (&lsp->token.name);
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ASE_LSP_FREE (lsp, lsp);
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return ASE_NULL;
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}
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lsp->max_eval_depth = 0; /* TODO: put restriction here.... */
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lsp->cur_eval_depth = 0;
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return lsp;
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}
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void ase_lsp_close (ase_lsp_t* lsp)
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{
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ase_lsp_closemem (lsp->mem);
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ase_lsp_name_close (&lsp->token.name);
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ASE_LSP_FREE (lsp, lsp);
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}
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void ase_lsp_setassocdata (ase_lsp_t* lsp, void* data)
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{
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lsp->assoc_data = data;
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}
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void* ase_lsp_getassocdata (ase_lsp_t* lsp)
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{
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return lsp->assoc_data;
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}
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int ase_lsp_attinput (ase_lsp_t* lsp, ase_lsp_io_t input, void* arg)
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{
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if (ase_lsp_detinput(lsp) == -1) return -1;
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ASE_ASSERT (lsp->input_func == ASE_NULL);
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if (input(ASE_LSP_IO_OPEN, arg, ASE_NULL, 0) == -1)
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{
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/* TODO: set error number */
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return -1;
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}
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lsp->input_func = input;
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lsp->input_arg = arg;
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lsp->curc = ASE_CHAR_EOF;
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return 0;
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}
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int ase_lsp_detinput (ase_lsp_t* lsp)
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{
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if (lsp->input_func != ASE_NULL)
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{
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if (lsp->input_func (
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ASE_LSP_IO_CLOSE, lsp->input_arg, ASE_NULL, 0) == -1)
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{
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/* TODO: set error number */
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return -1;
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}
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lsp->input_func = ASE_NULL;
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lsp->input_arg = ASE_NULL;
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lsp->curc = ASE_CHAR_EOF;
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}
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return 0;
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}
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int ase_lsp_attoutput (ase_lsp_t* lsp, ase_lsp_io_t output, void* arg)
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{
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if (ase_lsp_detoutput(lsp) == -1) return -1;
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ASE_ASSERT (lsp->output_func == ASE_NULL);
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if (output(ASE_LSP_IO_OPEN, arg, ASE_NULL, 0) == -1)
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{
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/* TODO: set error number */
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return -1;
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}
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lsp->output_func = output;
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lsp->output_arg = arg;
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return 0;
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}
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int ase_lsp_detoutput (ase_lsp_t* lsp)
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{
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if (lsp->output_func != ASE_NULL)
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{
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if (lsp->output_func (
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ASE_LSP_IO_CLOSE, lsp->output_arg, ASE_NULL, 0) == -1)
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{
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/* TODO: set error number */
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return -1;
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}
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lsp->output_func = ASE_NULL;
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lsp->output_arg = ASE_NULL;
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}
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return 0;
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}
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static int __add_builtin_prims (ase_lsp_t* lsp)
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{
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#define ADD_PRIM(mem,name,name_len,pimpl,min_args,max_args) \
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if (ase_lsp_addprim(mem,name,name_len,pimpl,min_args,max_args) == -1) return -1;
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#define MAX_ARGS ASE_TYPE_MAX(ase_size_t)
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ADD_PRIM (lsp, ASE_T("exit"), 4, ase_lsp_prim_exit, 0, 0);
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ADD_PRIM (lsp, ASE_T("eval"), 4, ase_lsp_prim_eval, 1, 1);
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ADD_PRIM (lsp, ASE_T("prog1"), 5, ase_lsp_prim_prog1, 1, MAX_ARGS);
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ADD_PRIM (lsp, ASE_T("progn"), 5, ase_lsp_prim_progn, 1, MAX_ARGS);
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ADD_PRIM (lsp, ASE_T("gc"), 2, ase_lsp_prim_gc, 0, 0);
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ADD_PRIM (lsp, ASE_T("cond"), 4, ase_lsp_prim_cond, 0, MAX_ARGS);
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ADD_PRIM (lsp, ASE_T("if"), 2, ase_lsp_prim_if, 2, MAX_ARGS);
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ADD_PRIM (lsp, ASE_T("while"), 5, ase_lsp_prim_while, 1, MAX_ARGS);
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ADD_PRIM (lsp, ASE_T("car"), 3, ase_lsp_prim_car, 1, 1);
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ADD_PRIM (lsp, ASE_T("cdr"), 3, ase_lsp_prim_cdr, 1, 1);
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ADD_PRIM (lsp, ASE_T("cons"), 4, ase_lsp_prim_cons, 2, 2);
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ADD_PRIM (lsp, ASE_T("length"), 6, ase_lsp_prim_length, 1, 1);
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ADD_PRIM (lsp, ASE_T("set"), 3, ase_lsp_prim_set, 2, 2);
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ADD_PRIM (lsp, ASE_T("setq"), 4, ase_lsp_prim_setq, 1, MAX_ARGS);
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ADD_PRIM (lsp, ASE_T("quote"), 5, ase_lsp_prim_quote, 1, 1);
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ADD_PRIM (lsp, ASE_T("defun"), 5, ase_lsp_prim_defun, 3, MAX_ARGS);
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ADD_PRIM (lsp, ASE_T("demac"), 5, ase_lsp_prim_demac, 3, MAX_ARGS);
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ADD_PRIM (lsp, ASE_T("let"), 3, ase_lsp_prim_let, 1, MAX_ARGS);
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ADD_PRIM (lsp, ASE_T("let*"), 4, ase_lsp_prim_letx, 1, MAX_ARGS);
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/*ADD_PRIM (lsp, ASE_T("or"), 2, ase_lsp_prim_or, 2, MAX_ARGS);*/
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ADD_PRIM (lsp, ASE_T("="), 1, ase_lsp_prim_eq, 2, 2);
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ADD_PRIM (lsp, ASE_T("/="), 2, ase_lsp_prim_ne, 2, 2);
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ADD_PRIM (lsp, ASE_T(">"), 1, ase_lsp_prim_gt, 2, 2);
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ADD_PRIM (lsp, ASE_T("<"), 1, ase_lsp_prim_lt, 2, 2);
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ADD_PRIM (lsp, ASE_T(">="), 2, ase_lsp_prim_ge, 2, 2);
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ADD_PRIM (lsp, ASE_T("<="), 2, ase_lsp_prim_le, 2, 2);
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ADD_PRIM (lsp, ASE_T("+"), 1, ase_lsp_prim_plus, 1, MAX_ARGS);
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ADD_PRIM (lsp, ASE_T("-"), 1, ase_lsp_prim_minus, 1, MAX_ARGS);
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ADD_PRIM (lsp, ASE_T("*"), 1, ase_lsp_prim_mul, 1, MAX_ARGS);
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ADD_PRIM (lsp, ASE_T("/"), 1, ase_lsp_prim_div, 1, MAX_ARGS);
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ADD_PRIM (lsp, ASE_T("%"), 1, ase_lsp_prim_mod , 1, MAX_ARGS);
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return 0;
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}
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