bool XEvalNode::applyNode(SchemeThread* schemethread, double curtime)
{
Console* console=Console::getInstance();
s7_scheme* sc=schemethread->scheme;
// console->setEvaling(true);
//// console->postAsyncMessage(CommandIDs::ConsoleIsEvaling, 1, true);
// install the begin_hook that allows s7 to quit current eval
schemethread->setSchemeInterrupt(false);
s7_set_begin_hook(sc, cm_begin_hook);
s7_pointer val=s7_eval_c_string(sc, (char *)expr.toUTF8());
s7_set_begin_hook(sc,NULL);
if (schemethread->isSchemeInterrupt())
{
console->printWarning(T("Scheme interrupted!\n"));
}
else if (val != schemethread->schemeError)
{
String str=String(s7_object_to_c_string(sc, val));
#ifdef GRACE
str << T("\n");
#endif
console->printValues(str);
}
// console->setEvaling(false);
//// console->postAsyncMessage(CommandIDs::ConsoleIsEvaling, 0, true);
return false;
}
bool XSalNode::applyNode(SchemeThread* st, double curtime)
{
s7_scheme* sc=st->scheme;
s7_pointer data=st->schemeNil;
Console* console=Console::getInstance();
// cons up token list using reverse order of array
for (int i=toks.size()-1; i>=0; i--)
{
data=s7_cons(sc, s7_make_c_pointer(sc, toks.getUnchecked(i)), data);
}
// turn data into arglist ("input" ({tok}*) [#t|#f]*)
data=s7_cons(sc,
s7_make_string(sc, expr.toUTF8()),
s7_cons(sc,
data,
s7_cons(sc,
s7_make_boolean(sc, expand),
s7_cons(sc,
s7_make_boolean(sc, multi),
st->schemeNil)))
);
// gc protect data cobbled up on the C side
int prot = s7_gc_protect(sc, data);
s7_pointer retn;
st->isSalEval(true);
//// console->postAsyncMessage(CommandIDs::ConsoleIsEvaling, 1, true);
st->setSchemeInterrupt(false);
s7_set_begin_hook(sc, cm_begin_hook);
if (vers==TextIDs::Sal1)
{
// sal only side effects so we never process return values
retn=s7_call(sc, s7_name_to_value(sc, "sal"), data);
}
else
{
retn=s7_call(sc, s7_name_to_value(sc, "sal2"), data);
if (retn != st->schemeError)
{
//cm_print(retn);
String str=String(s7_object_to_c_string(sc, retn));
str << T("\n");
for (int i=0; i<str.length(); i++)
if (str[i]==T('(')) str[i]=T('{');
else if (str[i]==T(')')) str[i]=T('}');
console->printValues(str);
}
}
s7_gc_unprotect_at(sc, prot);
s7_set_begin_hook(sc, NULL);
if (st->isSchemeInterrupt())
{
console->printWarning(T("Scheme interrupted!\n"));
}
st->isSalEval(false);
/// console->postAsyncMessage(CommandIDs::ConsoleIsEvaling, 0, true);
return false;
}
void ReplWindow::evaluate(Glib::ustring &expression)
{
Scheme *scm = Application::get()->get_scheme();
if (!expression.empty())
{
const char *errmsg;
s7_pointer old_port, result;
int gc_loc = -1;
//
// Open a port to catch error info
//
old_port = s7_set_current_error_port(scm,
s7_open_output_string(scm));
if (old_port != s7_nil(scm))
{
gc_loc = s7_gc_protect(scm, old_port);
}
result = s7_eval_c_string(scm, expression.data());
errmsg = s7_get_output_string(scm, s7_current_error_port(scm));
append_text( "\n" );
if ((errmsg) && (*errmsg))
{
append_text(errmsg);
}
else
{
char *result_as_string;
result_as_string = s7_object_to_c_string(scm, result);
if (result_as_string)
{
append_text(result_as_string);
free(result_as_string);
}
}
s7_close_output_port(scm, s7_current_error_port(scm));
s7_set_current_error_port(scm, old_port);
if (gc_loc != -1)
s7_gc_unprotect_at(scm, gc_loc);
}
}