qse/ase/lsp/print.c

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/*
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* $Id: print.c,v 1.21 2007-02-03 10:51:53 bacon Exp $
*
* {License}
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*/
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#include <ase/lsp/lsp_i.h>
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#define OUTPUT_STR(lsp,str) \
do { \
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if (lsp->output_func(ASE_LSP_IO_WRITE, lsp->output_arg, (ase_char_t*)str, ase_lsp_strlen(str)) == -1) { \
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lsp->errnum = ASE_LSP_ERR_OUTPUT; \
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return -1; \
} \
} while (0)
#define OUTPUT_STRX(lsp,str,len) \
do { \
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if (lsp->output_func(ASE_LSP_IO_WRITE, lsp->output_arg, (ase_char_t*)str, len) == -1) { \
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lsp->errnum = ASE_LSP_ERR_OUTPUT; \
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return -1; \
} \
} while (0)
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static int __print (ase_lsp_t* lsp, const ase_lsp_obj_t* obj, ase_bool_t prt_cons_par)
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{
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ase_char_t buf[256];
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if (lsp->output_func == ASE_NULL)
{
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lsp->errnum = ASE_LSP_ERR_OUTPUT_NOT_ATTACHED;
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return -1;
}
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switch (ASE_LSP_TYPE(obj))
{
case ASE_LSP_OBJ_NIL:
OUTPUT_STR (lsp, ASE_T("nil"));
break;
case ASE_LSP_OBJ_TRUE:
OUTPUT_STR (lsp, ASE_T("t"));
break;
case ASE_LSP_OBJ_INT:
#if defined(__BORLANDC__) || defined(_MSC_VER)
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lsp->prmfns.sprintf (
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buf, ASE_COUNTOF(buf),
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ASE_T("%I64d"), (__int64)ASE_LSP_IVAL(obj));
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#elif defined(vax) || defined(__vax) || defined(_SCO_DS)
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lsp->prmfns.sprintf (
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buf, ASE_COUNTOF(buf),
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ASE_T("%ld"), (long)ASE_LSP_IVAL(obj));
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#else
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lsp->prmfns.sprintf (
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buf, ASE_COUNTOF(buf),
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ASE_T("%lld"), (long long)ASE_LSP_IVAL(obj));
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#endif
OUTPUT_STR (lsp, buf);
break;
case ASE_LSP_OBJ_REAL:
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lsp->prmfns.sprintf (buf, ASE_COUNTOF(buf),
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ASE_T("%Lf"), (long double)ASE_LSP_RVAL(obj));
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OUTPUT_STR (lsp, buf);
break;
case ASE_LSP_OBJ_SYM:
OUTPUT_STRX (lsp, ASE_LSP_SYMPTR(obj), ASE_LSP_SYMLEN(obj));
break;
case ASE_LSP_OBJ_STR:
OUTPUT_STRX (lsp, ASE_LSP_STRPTR(obj), ASE_LSP_STRLEN(obj));
break;
case ASE_LSP_OBJ_CONS:
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{
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const ase_lsp_obj_t* p = obj;
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if (prt_cons_par) OUTPUT_STR (lsp, ASE_T("("));
do
{
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ase_lsp_print (lsp, ASE_LSP_CAR(p));
p = ASE_LSP_CDR(p);
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if (p != lsp->mem->nil)
{
OUTPUT_STR (lsp, ASE_T(" "));
if (ASE_LSP_TYPE(p) != ASE_LSP_OBJ_CONS)
{
OUTPUT_STR (lsp, ASE_T(". "));
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ase_lsp_print (lsp, p);
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}
}
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}
while (p != lsp->mem->nil && ASE_LSP_TYPE(p) == ASE_LSP_OBJ_CONS);
if (prt_cons_par) OUTPUT_STR (lsp, ASE_T(")"));
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break;
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}
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case ASE_LSP_OBJ_FUNC:
/*OUTPUT_STR (lsp, ASE_T("func"));*/
OUTPUT_STR (lsp, ASE_T("(lambda "));
if (__print (lsp, ASE_LSP_FFORMAL(obj), ase_true) == -1) return -1;
OUTPUT_STR (lsp, ASE_T(" "));
if (__print (lsp, ASE_LSP_FBODY(obj), ase_false) == -1) return -1;
OUTPUT_STR (lsp, ASE_T(")"));
break;
case ASE_LSP_OBJ_MACRO:
OUTPUT_STR (lsp, ASE_T("(macro "));
if (__print (lsp, ASE_LSP_FFORMAL(obj), ase_true) == -1) return -1;
OUTPUT_STR (lsp, ASE_T(" "));
if (__print (lsp, ASE_LSP_FBODY(obj), ase_false) == -1) return -1;
OUTPUT_STR (lsp, ASE_T(")"));
break;
case ASE_LSP_OBJ_PRIM:
OUTPUT_STR (lsp, ASE_T("prim"));
break;
default:
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lsp->prmfns.sprintf (buf, ASE_COUNTOF(buf),
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ASE_T("unknown object type: %d"), ASE_LSP_TYPE(obj));
OUTPUT_STR (lsp, buf);
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}
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return 0;
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}
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int ase_lsp_print (ase_lsp_t* lsp, const ase_lsp_obj_t* obj)
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{
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return __print (lsp, obj, ase_true);
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}