void Theme::init_interpreter(void) {
if(priv->sc) return;
scheme *ss = edelib_scheme_init_raw();
if(!ss) {
E_WARNING(E_STRLOC ": Unable to init interpreter\n");
return;
}
priv->sc = ss;
/* must be called */
scheme_set_input_port_file(ss, stdin);
scheme_set_output_port_file(ss, stdout);
/* install user supplied error handler first, if given */
if(priv->err_func) {
ss->vptr->scheme_define(ss,
ss->global_env,
ss->vptr->mk_symbol(ss, "private:theme.error_hook"),
ss->vptr->mk_foreign_func(ss, theme_error_hook));
/* make sure interpreter does not use this function at all */
scheme_set_external_data(ss, (void*)priv);
}
/* load init stuff */
scheme_load_string(ss, init_ss_content);
/* load theme stuff */
scheme_load_string(ss, theme_ss_content);
/*
* Set (or override) common variables before actual script was loaded.
* Variables are static and can't be changed.
*/
pointer sym;
sym = mk_symbol(ss, "*edelib-dir-separator*");
scheme_define(ss, ss->global_env, sym, mk_string(ss, E_DIR_SEPARATOR_STR));
ss->vptr->setimmutable(sym);
sym = mk_symbol(ss, "*edelib-version*");
scheme_define(ss, ss->global_env, sym, mk_string(ss, EDELIB_VERSION));
ss->vptr->setimmutable(sym);
}
void ShellService::ExecuteCommand(const std::string& cmd)
{
std::size_t pos = cmd.find_first_not_of(' ');
if (pos == std::string::npos) return;
std::string command = cmd.substr(pos);
if (command[0] != '(')
{
command = "(" + command + ")";
}
scheme_load_string(d->m_Scheme, command.c_str());
}
void ShellService::LoadSchemeResource(const BundleResource& res)
{
std::cout << "Reading " << res.GetResourcePath();
BundleResourceStream resStream(res);
int resBufLen = res.GetSize() + 1;
char* resBuf = new char[resBufLen];
resStream.read(resBuf, resBufLen);
if (resStream.eof() || resStream.good())
{
resBuf[static_cast<std::size_t>(resStream.gcount())] = '\0';
scheme_load_string(d->m_Scheme, resBuf);
}
else
{
std::cerr << "Could not read " << res.GetResourcePath() << " file from resource";
}
delete[] resBuf;
}
int main(int argc, char **argv) {
FILE *fin = NULL;
const char *expr = NULL;
scheme sc;
if(argc > 1) {
if(argv[1][0] == '-') {
if((strcmp(argv[1], "--help") == 0) || (strcmp(argv[1], "-h") == 0)) {
help();
return 0;
} else if((strcmp(argv[1], "--expression") == 0) || (strcmp(argv[1], "-e") == 0)) {
if(!argv[2]) {
printf("This option requires a parameter\n");
return 1;
}
expr = argv[2];
} else {
printf("Unrecognized option. Use 'ede-scriptbus --help' for options\n");
return 1;
}
}
if(!expr) {
fin = fopen(argv[1], "r");
if(!fin) {
fprintf(stderr, "Unable to load '%s' file!\n", argv[1]);
return 1;
}
}
}
if(!scheme_init(&sc)) {
fprintf(stderr, "Fatal: Unable to initialize interpreter!\n");
return 1;
}
scheme_set_input_port_file(&sc, stdin);
scheme_set_output_port_file(&sc, stdout);
/* load basic stuff */
scheme_load_string(&sc, init_scm_content);
/* register additional functions */
register_sys_functions(&sc);
register_communication_functions(&sc);
register_string_functions(&sc);
register_wm_functions(&sc);
/* construct *args* */
pointer args = sc.NIL;
for(int i = 0; i < argc; i++) {
pointer value = mk_string(&sc, argv[i]);
args = cons(&sc, value, args);
}
args = scheme_reverse(&sc, args);
scheme_define(&sc, sc.global_env, mk_symbol(&sc, "*args*"), args);
if(!expr) {
/* load file or go into console */
if(!fin) {
fin = stdin;
printf("Type '(quit)' or press Ctrl-D to quit");
}
scheme_load_file(&sc, fin);
} else {
/* or execute expression */
scheme_load_string(&sc, expr);
if(sc.retcode != 0)
printf("Bad expression: '%s'\n", expr);
}
scheme_deinit(&sc);
return 0;
}
int main(int argc, char **argv)
{
scheme sc;
FILE *fin;
char *file_name = INITFILE;
int isfile = 1;
if (argc == 1) {
printf(BANNER);
}
if (argc == 2 && strcmp(argv[1], "-?") == 0) {
usage();
return 1;
}
if (!scheme_init(&sc)) {
fprintf(stderr, "Could not initialize!\n");
return 2;
}
scheme_set_input_port_file(&sc, stdin);
scheme_set_output_port_file(&sc, stdout);
#if USE_DL
scheme_define(&sc, sc.global_env,
mk_symbol(&sc, "load-extension"),
mk_foreign_func(&sc, scm_load_ext));
#endif
argv++;
if (access(file_name, 0) != 0) {
char *p = getenv("TINYSCHEMEINIT");
if (p != 0) {
file_name = p;
}
}
do {
if (strcmp(file_name, "-") == 0) {
fin = stdin;
} else if (strcmp(file_name, "-1") == 0 ||
strcmp(file_name, "-c") == 0) {
pointer args = sc.NIL;
isfile = file_name[1] == '1';
file_name = *argv++;
if (strcmp(file_name, "-") == 0) {
fin = stdin;
} else if (isfile) {
fin = fopen(file_name, "r");
}
for (; *argv; argv++) {
pointer value = mk_string(&sc, *argv);
args = cons(&sc, value, args);
}
args = reverse_in_place(&sc, sc.NIL, args);
scheme_define(&sc, sc.global_env,
mk_symbol(&sc, "*args*"), args);
} else {
fin = fopen(file_name, "r");
}
if (isfile && fin == 0) {
fprintf(stderr, "Could not open file %s\n", file_name);
} else {
if (isfile) {
scheme_load_named_file(&sc, fin, file_name);
} else {
scheme_load_string(&sc, file_name);
}
if (!isfile || fin != stdin) {
if (sc.retcode != 0) {
fprintf(stderr, "Errors encountered reading %s\n", file_name);
}
if (isfile) {
fclose(fin);
}
}
}
file_name = *argv++;
} while (file_name != 0);
if (argc == 1) {
scheme_load_named_file(&sc, stdin, 0);
}
scheme_deinit(&sc);
return sc.retcode;
}
scheme* scheme_get_interp(void * p) {
scheme * sc = queue_get(&interp_queue);
sc->ext_data = p;
scheme_load_string(sc,scheme_init_code);
return sc;
}