168 lines
3.3 KiB
C
168 lines
3.3 KiB
C
#include <xp/lisp/lisp.h>
|
|
#include <xp/bas/stdio.h>
|
|
#include <xp/bas/ctype.h>
|
|
#include <xp/bas/stdcli.h>
|
|
|
|
#ifdef __linux
|
|
#include <mcheck.h>
|
|
#endif
|
|
|
|
static int get_char (xp_cint_t* ch, void* arg)
|
|
{
|
|
xp_cint_t 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 handle_cli_error (
|
|
const xp_cli_t* cli, int code,
|
|
const xp_char_t* name, const xp_char_t* value)
|
|
{
|
|
xp_printf (XP_TEXT("usage: %s /memory=nnn /increment=nnn\n"), cli->verb);
|
|
|
|
if (code == XP_CLI_ERROR_INVALID_OPTNAME) {
|
|
xp_printf (XP_TEXT("unknown option - %s\n"), name);
|
|
}
|
|
else if (code == XP_CLI_ERROR_MISSING_OPTNAME) {
|
|
xp_printf (XP_TEXT("missing option - %s\n"), name);
|
|
}
|
|
else if (code == XP_CLI_ERROR_REDUNDANT_OPTVAL) {
|
|
xp_printf (XP_TEXT("redundant value %s for %s\n"), value, name);
|
|
}
|
|
else if (code == XP_CLI_ERROR_MISSING_OPTVAL) {
|
|
xp_printf (XP_TEXT("missing value for %s\n"), name);
|
|
}
|
|
else if (code == XP_CLI_ERROR_MEMORY) {
|
|
xp_printf (XP_TEXT("memory error in processing %s\n"), name);
|
|
}
|
|
else {
|
|
xp_printf (XP_TEXT("error code: %d\n"), code);
|
|
}
|
|
|
|
return -1;
|
|
}
|
|
xp_cli_t* parse_cli (int argc, xp_char_t* argv[])
|
|
{
|
|
static const xp_char_t* optsta[] =
|
|
{
|
|
XP_TEXT("/"), XP_TEXT("--"), XP_NULL
|
|
};
|
|
|
|
static xp_cliopt_t opts[] =
|
|
{
|
|
{ XP_TEXT("memory"), XP_CLI_OPTNAME | XP_CLI_OPTVAL },
|
|
{ XP_TEXT("increment"), XP_CLI_OPTNAME | XP_CLI_OPTVAL },
|
|
{ XP_NULL, 0 }
|
|
};
|
|
|
|
static xp_cli_t cli =
|
|
{
|
|
handle_cli_error,
|
|
optsta,
|
|
XP_TEXT("="),
|
|
opts
|
|
};
|
|
|
|
if (xp_parsecli (argc, argv, &cli) == -1) return XP_NULL;
|
|
return &cli;
|
|
}
|
|
|
|
int xp_main (int argc, xp_char_t* argv[])
|
|
{
|
|
xp_lisp_t* lisp;
|
|
xp_lisp_obj_t* obj;
|
|
xp_cli_t* cli;
|
|
int mem, inc;
|
|
|
|
#ifdef __linux
|
|
mtrace ();
|
|
#endif
|
|
|
|
setlocale (LC_ALL, "");
|
|
|
|
if ((cli = parse_cli (argc, argv)) == XP_NULL) return -1;
|
|
mem = to_int(xp_getclioptval(cli, XP_TEXT("memory")));
|
|
inc = to_int(xp_getclioptval(cli, XP_TEXT("increment")));
|
|
xp_clearcli (cli);
|
|
|
|
if (mem <= 0) {
|
|
xp_fprintf (xp_stderr,
|
|
XP_TEXT("error: invalid memory size given\n"));
|
|
return -1;
|
|
}
|
|
|
|
lisp = xp_lisp_new (mem, inc);
|
|
if (lisp == XP_NULL) {
|
|
xp_fprintf (xp_stderr,
|
|
XP_TEXT("error: cannot create a lisp instance\n"));
|
|
return -1;
|
|
}
|
|
|
|
xp_printf (XP_TEXT("LISP 0.0001\n"));
|
|
|
|
xp_lisp_set_creader (lisp, get_char, XP_NULL);
|
|
|
|
for (;;) {
|
|
xp_printf (XP_TEXT("%s> "), argv[0]);
|
|
|
|
obj = xp_lisp_read (lisp);
|
|
if (obj == XP_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)) != XP_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;
|
|
}
|
|
|
|
|