qse/ase/test/lsp/lisp.c

105 lines
1.8 KiB
C

#include <xp/lisp/lisp.h>
#include <xp/c/stdio.h>
#include <xp/c/ctype.h>
#ifdef LINUX
#include <mcheck.h>
#endif
static int get_char (xp_lisp_cint* ch, void* arg)
{
xp_lisp_cint c;
c = xp_fgetc(xp_stdin);
if (c == XP_EOF) {
if (xp_ferror(xp_stdin)) return -1;
c = XP_EOF;
}
*ch = c;
return 0;
}
int to_int (const xp_char_t* str)
{
int r = 0;
while (*str != XP_CHAR('\0')) {
if (!xp_isdigit(*str)) break;
r = r * 10 + (*str - XP_CHAR('0'));
str++;
}
return r;
}
#include <locale.h>
int xp_main (int argc, xp_char_t* argv[])
{
xp_lisp_t* lisp;
xp_lisp_obj_t* obj;
#ifdef LINUX
mtrace ();
#endif
setlocale (LC_ALL, "");
if (argc != 3) {
xp_fprintf (xp_stderr, XP_TEXT("usage: %s mem_ubound mem_ubound_inc\n"), argv[0]);
return -1;
}
lisp = xp_lisp_new (to_int(argv[1]), to_int(argv[2]));
if (lisp == NULL) {
xp_fprintf (xp_stderr, XP_TEXT("can't create a lisp instance\n"));
return -1;
}
xp_printf (XP_TEXT("LISP 0.0001\n"));
xp_lisp_set_creader (lisp, get_char, NULL);
for (;;) {
xp_printf (XP_TEXT("%s> "), argv[0]);
obj = xp_lisp_read (lisp);
if (obj == NULL) {
if (lisp->error != XP_LISP_ERR_END &&
lisp->error != XP_LISP_ERR_ABORT) {
xp_fprintf (xp_stderr,
XP_TEXT("error while reading: %d\n"), lisp->error);
}
if (lisp->error < XP_LISP_ERR_SYNTAX) break;
continue;
}
if ((obj = xp_lisp_eval (lisp, obj)) != NULL) {
xp_lisp_print (lisp, obj);
xp_printf (XP_TEXT("\n"));
}
else {
if (lisp->error == XP_LISP_ERR_ABORT) break;
xp_fprintf (xp_stderr,
XP_TEXT("error while reading: %d\n"), lisp->error);
}
/*
printf ("-----------\n");
xp_lisp_print (lisp, obj);
printf ("\n-----------\n");
*/
}
xp_lisp_free (lisp);
#ifdef LINUX
muntrace ();
#endif
return 0;
}