#include "gacela_GL.h"
#include "gacela_FTGL.h"
-// Generic variables
+// Global variables
int ctrl_c = 0;
+int pid = 0;
+char *history_path = NULL;
+
static int
find_matching_paren (int k)
printf ("ERROR: User interrupt\nABORT: (signal)\n");
ctrl_c = 1;
}
-
+
+void
+child_dies_handler (int signum)
+{
+ write_history (history_path);
+ exit (0);
+}
+
static void
init_gacela_client ()
{
- struct sigaction new_action;
+ struct sigaction ctrl_c_action, child_dies_action;
// init bouncing parens
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;
+ ctrl_c_action.sa_handler = ctrl_c_handler;
+ sigemptyset (&ctrl_c_action.sa_mask);
+ ctrl_c_action.sa_flags = 0;
+
+ sigaction (SIGINT, &ctrl_c_action, NULL);
+
+ // SIGALRM
+ if (pid != 0) {
+ child_dies_action.sa_handler = child_dies_handler;
+ sigemptyset (&child_dies_action.sa_mask);
+ child_dies_action.sa_flags = 0;
+
+ sigaction (SIGALRM, &child_dies_action, NULL);
+ }
+
+}
+
+int
+opened_parens (char *line, int k)
+{
+ int i;
+ int opened = 0;
+ char c = 0;
+
+ // Choose the corresponding opening bracket
+ if (k == ')') c = '(';
+ else if (k == ']') c = '[';
+ else if (k == '}') c = '{';
+
+ for (i = 0; i < strlen (line); i++) {
+ // Is the current character part of a character literal?
+ if (i + 2 >= strlen (line)
+ && line[i] == '#'
+ && line[i + 1] == '\\')
+ i = i + 2;
+ else if (line[i] == '"') {
+ // Skip over a string literal
+ for (i++; i < strlen (line); i++)
+ if (line[i] == '"'
+ && line[i - 1] != '\\')
+ break;
+ }
+ else if (line[i] == ';') {
+ // Comment until endline
+ break;
+ }
+ else if (line[i] == c)
+ opened++;
+ else if (line[i] == k)
+ opened--;
+ }
- sigaction (SIGINT, &new_action, NULL);
+ return opened;
}
void
{
int n;
SCM buffer;
- char *line;
- char *history_path;
+ char *line = NULL, *line_for_sending = NULL;
+ int opened = 0;
// Command line
asprintf (&history_path, "%s/.gacela_history", getenv("HOME"));
read_history (history_path);
while (1) {
- line = readline ("gacela> ");
- ctrl_c = 0;
+ if (opened > 0)
+ line = readline ("... ");
+ else
+ line = readline ("gacela> ");
+
if (!line) break;
+
+ opened += opened_parens (line, ')');
+ ctrl_c = 0;
+
if (line && *line)
{
add_history (line);
- scm_write (scm_from_locale_string (line), send_channel);
- scm_force_output (send_channel);
-
- while (scm_char_ready_p (rec_channel) == SCM_BOOL_F) {
- if (ctrl_c) break;
- sleep (0.5);
+ if (line_for_sending == NULL) {
+ line_for_sending = strdup (line);
}
- if (ctrl_c)
- ctrl_c = 0;
else {
- buffer = scm_read (rec_channel);
- if (strlen (scm_to_locale_string (buffer)) > 0)
- printf ("%s\n", scm_to_locale_string (buffer));
+ line_for_sending = realloc (line_for_sending, strlen (line_for_sending) + strlen (line) + 2);
+ line_for_sending = strcat (line_for_sending, "\n");
+ line_for_sending = strcat (line_for_sending, line);
+ }
+
+ if (opened <= 0) {
+ scm_write (scm_from_locale_string (line_for_sending), send_channel);
+ scm_force_output (send_channel);
+ free (line_for_sending);
+ line_for_sending = NULL;
+
+ while (scm_char_ready_p (rec_channel) == SCM_BOOL_F) {
+ if (ctrl_c) break;
+ sleep (0.5);
+ }
+ if (ctrl_c)
+ ctrl_c = 0;
+ else {
+ buffer = scm_read (rec_channel);
+ if (strlen (scm_to_locale_string (buffer)) > 0)
+ printf ("%s\n", scm_to_locale_string (buffer));
+ }
}
}
free (line);
}
static void*
-init_gacela (void *data, int argc, char **argv)
+init_scheme (void *data, int argc, char **argv)
{
// Guile configuration
scm_c_eval_string ("(set-repl-prompt! \"gacela> \")");
}
void
-start_single ()
+init_gacela (char *path)
{
- char *argv = "guile";
-
- scm_shell (1, &argv);
+ scm_with_guile (&init_scheme, NULL);
+ load_scheme_files (path);
+ scm_c_eval_string ("(init-video-mode)");
}
void
main (int argc, char *argv[])
{
char *arg;
- int mode = 0; // shell: 1, server: 2, client: 3
+ int mode = 0; // dev: 1, server: 2, client: 3
char *host;
int port = 0;
int i;
SCM fd1, fd2;
- int pid;
// Checking arguments
for (i = 1; i < argc; i++) {
- if (strcmp (argv[i], "--shell-mode") == 0)
+ if (strcmp (argv[i], "--dev") == 0)
mode = 1;
else if (strncmp (argv[i], "--server", 8) == 0) {
mode = 2;
scm_init_guile ();
if (mode == 1) {
- scm_with_guile (&init_gacela, NULL);
- load_scheme_files (dirname (argv[0]));
- start_single ();
- }
- else if (mode == 2 && port != 0) {
- scm_with_guile (&init_gacela, NULL);
- load_scheme_files (dirname (argv[0]));
- start_server (port);
- }
- else if (mode == 3 && port != 0)
- start_remote_client (host, port);
- else {
fd1 = scm_pipe ();
fd2 = scm_pipe ();
pid = fork ();
if (pid == 0) {
scm_close (SCM_CAR (fd1));
scm_close (SCM_CDR (fd2));
- scm_with_guile (&init_gacela, NULL);
- load_scheme_files (dirname (argv[0]));
+ init_gacela (dirname (argv[0]));
start_local_server (scm_cons (SCM_CAR (fd2), SCM_CDR (fd1)));
+ kill (getppid (), SIGALRM);
}
else {
scm_close (SCM_CDR (fd1));
kill (pid, SIGKILL);
}
}
+ else if (mode == 2 && port != 0) {
+ init_gacela (dirname (argv[0]));
+ start_server (port);
+ }
+ else if (mode == 3 && port != 0)
+ start_remote_client (host, port);
+ else {
+ init_gacela (dirname (argv[0]));
+ scm_shell (argc, argv);
+ SDL_Quit ();
+ }
}
projects / gacela.git / blobdiff