#include <libguile.h>
#include <libgen.h>
+#include <readline/readline.h>
+#include <readline/history.h>
+#include <signal.h>
#include "gacela_SDL.h"
#include "gacela_GL.h"
#include "gacela_FTGL.h"
+
+static int
+find_matching_paren (int k)
+{
+ register int i;
+ register char c = 0;
+ int end_parens_found = 0;
+
+ /* Choose the corresponding opening bracket. */
+ if (k == ')') c = '(';
+ else if (k == ']') c = '[';
+ else if (k == '}') c = '{';
+
+ for (i = rl_point-2; i >= 0; i--)
+ {
+ /* Is the current character part of a character literal? */
+ if (i - 2 >= 0
+ && rl_line_buffer[i - 1] == '\\'
+ && rl_line_buffer[i - 2] == '#')
+ ;
+ else if (rl_line_buffer[i] == k)
+ end_parens_found++;
+ else if (rl_line_buffer[i] == '"')
+ {
+ /* Skip over a string literal. */
+ for (i--; i >= 0; i--)
+ if (rl_line_buffer[i] == '"'
+ && ! (i - 1 >= 0
+ && rl_line_buffer[i - 1] == '\\'))
+ break;
+ }
+ else if (rl_line_buffer[i] == c)
+ {
+ if (end_parens_found==0) return i;
+ else --end_parens_found;
+ }
+ }
+ return -1;
+}
+
+static int
+match_paren (int x, int k)
+{
+ int tmp;
+ int fno;
+ SELECT_TYPE readset;
+ struct timeval timeout;
+
+ rl_insert (x, k);
+
+ /* Did we just insert a quoted paren? If so, then don't bounce. */
+ if (rl_point - 1 >= 1
+ && rl_line_buffer[rl_point - 2] == '\\')
+ return 0;
+
+ tmp = 500000;
+ timeout.tv_sec = tmp / 1000000;
+ timeout.tv_usec = tmp % 1000000;
+ FD_ZERO (&readset);
+ fno = fileno (rl_instream);
+ FD_SET (fno, &readset);
+
+ if (rl_point > 1)
+ {
+ tmp = rl_point;
+ rl_point = find_matching_paren (k);
+ if (rl_point > -1)
+ {
+ rl_redisplay ();
+ scm_std_select (fno + 1, &readset, NULL, NULL, &timeout);
+ }
+ rl_point = tmp;
+ }
+ return 0;
+}
+
+void
+ctrl_c_handler (int signum)
+{
+ printf ("ERROR: User interrupt\nABORT: (signal)\n");
+}
+
+static void
+init_gacela_client ()
+{
+ struct sigaction new_action;
+
+ /* init bouncing parens */
+ rl_bind_key (')', match_paren);
+ rl_bind_key (']', match_paren);
+ rl_bind_key ('}', match_paren);
+
+ /* SIGINT */
+ new_action.sa_handler = ctrl_c_handler;
+ sigemptyset (&new_action.sa_mask);
+ new_action.sa_flags = 0;
+
+ sigaction (SIGINT, &new_action, NULL);
+}
+
+void
+gacela_client (void)
+{
+ char *line;
+ char *history_path;
+
+ asprintf (&history_path, "%s/.gacela_history", getenv("HOME"));
+
+ init_gacela_client ();
+ read_history (history_path);
+
+ while (1) {
+ line = readline ("gacela> ");
+ if (!line) break;
+ if (line && *line)
+ {
+ printf ("%s\n", line);
+ add_history (line);
+ }
+ free (line);
+ }
+
+ write_history (history_path);
+ free (history_path);
+}
+
static void*
init_gacela (void *data, int argc, char **argv)
{
scm_c_eval_string ("(activate-readline)");
scm_c_eval_string ("(use-modules (ice-9 optargs))");
scm_c_eval_string ("(use-modules (ice-9 receive))");
+ // scm_c_eval_string ("(read-enable 'case-insensitive)");
// Bindings for C functions and structs
SDL_register_functions (NULL);
}
void
-load_scheme_file (char *path, char *filename)
+load_scheme_files (char *path)
{
- char fn[strlen (path) + 1024];
+ char load_path[strlen (path) + 1024];
+
+ sprintf (load_path, "(set! %%load-path (cons \"%s\" %%load-path))", path);
+ scm_c_eval_string (load_path);
+ scm_primitive_load_path (scm_from_locale_string ("gacela_loader.scm"));
+}
- strcpy (fn, path);
- strcat (fn, "/");
- strcat (fn, filename);
+void
+start_single (int argc, char *argv[])
+{
+ scm_with_guile (&init_gacela, NULL);
+ load_scheme_files (dirname (argv[0]));
+ scm_shell (argc, argv);
+}
- scm_c_primitive_load (fn);
+void
+start_server (int argc, char *argv[])
+{
+ scm_with_guile (&init_gacela, NULL);
+ load_scheme_files (dirname (argv[0]));
+ scm_c_eval_string ("(start-server 1234)");
+ scm_c_eval_string ("(game-loop)");
}
void
-load_scheme_files (char *path)
+start_client (void)
{
- load_scheme_file (path, "gacela.scm");
- load_scheme_file (path, "gacela_events.scm");
- load_scheme_file (path, "gacela_draw.scm");
- load_scheme_file (path, "gacela_ttf.scm");
+ scm_init_guile ();
+ gacela_client ();
}
int
main (int argc, char *argv[])
{
- scm_with_guile (&init_gacela, NULL);
- scm_shell (argc, argv);
+ start_single (argc, argv);
+ /*
+ if (fork () == 0)
+ start_server ();
+ else
+ start_client ();
+ */
}