static mpdm_t constant_fold(mpdm_t i)
/* tries to fold complex but constant expressions into a literal */
{
int n;
mpdm_t v;
/* get the number opcode */
n = mpdm_ival(mpdm_aget(i, 0));
if (op_table[n].foldable) {
/* test if all arguments are literal (opcode 0) */
for (n = 1; n < mpdm_size(i); n++) {
mpdm_t t = mpdm_aget(i, n);
/* if it's not LITERAL, abort immediately */
if (mpdm_ival(mpdm_aget(t, 0)) != 0)
return i;
}
/* execute the instruction and convert to LITERAL */
v = mpsl_exec_p(i, NULL, NULL);
i = mpsl_mkins(L"LITERAL", 1, v, NULL, NULL, NULL);
}
return i;
}
/**
* mpsl_set_symbol - Sets value to a symbol.
* @s: symbol name
* @v: value
* @l: local symbol table
*
* Assigns the value @v to the @s symbol. If the value exists as
* a local symbol, it's assigned to it; otherwise, it's set as a global
* symbol (and created if it does not exist).
*/
mpdm_t mpsl_set_symbol(mpdm_t s, mpdm_t v, mpdm_t l)
{
int n;
mpdm_t r, p, w;
mpdm_ref(l);
mpdm_ref(s);
mpdm_ref(v);
/* get the local or global symbol table */
if ((r = find_local_symtbl(s, l)) == NULL)
r = mpdm_root();
/* splits the path, if needed */
if (MPDM_IS_ARRAY(s))
p = mpdm_ref(s);
else
p = mpdm_ref(mpdm_split_s(s, L"."));
w = r;
for (n = 0; w != NULL && n < mpdm_size(p); n++) {
/* is executable? run it and take its output */
while (MPDM_IS_EXEC(w))
w = mpdm_exec(w, NULL, NULL);
/* last component? */
if (n == mpdm_size(p) - 1) {
/* yes; do the setting */
if (MPDM_IS_HASH(w))
w = mpdm_hset(w, mpdm_aget(p, n), v);
else
if (MPDM_IS_ARRAY(w))
w = mpdm_aset(w, v, mpdm_ival(mpdm_aget(p, n)));
}
else {
if (MPDM_IS_HASH(w))
w = mpdm_hget(w, mpdm_aget(p, n));
else
if (MPDM_IS_ARRAY(w))
w = mpdm_aget(w, mpdm_ival(mpdm_aget(p, n)));
else {
mpdm_void(w);
w = NULL;
}
}
}
mpdm_unref(p);
mpdm_unref(v);
mpdm_unref(s);
mpdm_unref(l);
return w;
}
static mpdm_t kde4_drv_confirm(mpdm_t a, mpdm_t ctxt)
/* confirm driver function */
{
int r;
/* 1# arg: prompt */
r = KMessageBox::questionYesNoCancel(0,
str_to_qstring(mpdm_aget(a, 0)),
i18n("mp" VERSION));
switch (r) {
case KMessageBox::Yes:
r = 1;
break;
case KMessageBox::No:
r = 2;
break;
case KMessageBox::Cancel:
r = 0;
break;
}
return MPDM_I(r);
}
static mpdm_t kde4_drv_alert(mpdm_t a, mpdm_t ctxt)
/* alert driver function */
{
/* 1# arg: prompt */
KMessageBox::information(0, str_to_qstring(mpdm_aget(a, 0)),
i18n("mp " VERSION));
return NULL;
}
O_TYPE execsym(O_ARGS, int th, int m)
{
mpdm_t s, v, p, o = NULL, r = NULL;
/* gets the symbol name */
s = RF(M1);
/* gets the arguments */
p = RF(M2);
/* if it's to be called as a method, the object
should be inserted into the local symtable
before searching the symbol */
if (m && (o = mpdm_aget(p, 0)) && MPDM_IS_HASH(o)) {
mpdm_push(l, o);
}
else
m = 0;
/* gets the symbol value */
v = GET(s);
if (!MPDM_IS_EXEC(v)) {
/* not found or NULL value? error */
mpdm_t t, w;
char tmp[128];
w = RF(mpdm_join_s(s, L"."));
t = RF(MPDM_2MBS((wchar_t *) w->data));
snprintf(tmp, sizeof(tmp), "Undefined function %s()",
(char *) t->data);
mpsl_error(MPDM_MBS(tmp));
UF(w);
UF(t);
}
else {
/* execute */
r = RF(th ? mpdm_exec_thread(v, p, l) : mpdm_exec(v, p, l));
}
UF(s);
UF(p);
/* drop the object from the local symtable */
if (m)
mpdm_adel(l, -1);
return UFND(r);
}
static mpdm_t kde4_drv_savefile(mpdm_t a, mpdm_t ctxt)
{
QString r;
char tmp[128];
getcwd(tmp, sizeof(tmp));
/* 1# arg: prompt */
r = KFileDialog::getSaveFileName(KUrl::fromPath(tmp), "*", 0,
str_to_qstring(mpdm_aget(a, 0)));
return qstring_to_str(r);
}
static mpdm_t find_local_symtbl(mpdm_t s, mpdm_t l)
/* finds the local symbol table hash that holds l */
{
int n;
mpdm_t v = NULL;
if (l != NULL) {
/* if s is multiple, take just the first element */
if (MPDM_IS_ARRAY(s))
s = mpdm_aget(s, 0);
/* travel the local symbol table trying to find it */
for (n = mpdm_size(l) - 1; n >= 0; n--) {
mpdm_t h = mpdm_aget(l, n);
if (mpdm_exists(h, s)) {
v = h;
break;
}
}
}
return v;
}
static void set_local_symbols(mpdm_t s, mpdm_t v, mpdm_t l)
/* sets (or creates) a list of local symbols with a list of values */
{
if (l != NULL) {
mpdm_t h;
mpdm_ref(s);
mpdm_ref(v);
mpdm_ref(l);
/* gets the top local variable frame */
h = mpdm_aget(l, -1);
if (MPDM_IS_ARRAY(s) || MPDM_IS_ARRAY(v)) {
int n;
mpdm_t a;
for (n = 0; n < mpdm_size(s); n++)
mpdm_hset(h, mpdm_aget(s, n), mpdm_aget(v, n));
if (n < mpdm_size(v)) {
/* store the rest of arguments into _ */
a = mpdm_hset_s(h, L"_", MPDM_A(0));
for (; n < mpdm_size(v); n++)
mpdm_push(a, mpdm_aget(v, n));
}
}
else
mpdm_hset(h, s, v);
mpdm_unref(l);
mpdm_unref(v);
mpdm_unref(s);
}
}
O_TYPE O_global(O_ARGS)
{
mpdm_t v = RF(M1);
if (MPDM_IS_ARRAY(v)) {
int n;
for (n = 0; n < mpdm_size(v); n++)
mpdm_hset(mpdm_root(), mpdm_aget(v, n), NULL);
}
else
mpdm_hset(mpdm_root(), v, NULL);
UF(v);
return NULL;
}
O_TYPE O_foreach(O_ARGS)
/* foreach loop */
{
mpdm_t s = RF(M1);
mpdm_t v = RF(M2);
mpdm_t r = NULL;
int n;
for (n = 0; n < mpdm_size(v) && !*f; n++) {
SET(s, mpdm_aget(v, n));
UF(r);
r = RF(M3);
}
if (*f == 1)
*f = 0;
UF(s);
UF(v);
return UFND(r);
}
static mpdm_t kde4_drv_form(mpdm_t a, mpdm_t ctxt)
{
int n;
mpdm_t widget_list;
QWidget *qlist[100];
mpdm_t r;
KDialog *dialog = new KDialog(window);
dialog->setModal(true);
dialog->setButtons(KDialog::Ok | KDialog::Cancel);
widget_list = mpdm_aget(a, 0);
KVBox *vb = new KVBox(dialog);
dialog->setMainWidget(vb);
for (n = 0; n < mpdm_size(widget_list); n++) {
mpdm_t w = mpdm_aget(widget_list, n);
wchar_t *type;
mpdm_t t;
KHBox *hb = new KHBox(vb);
type = mpdm_string(mpdm_hget_s(w, L"type"));
if ((t = mpdm_hget_s(w, L"label")) != NULL) {
QLabel *ql = new QLabel(hb);
ql->setText(str_to_qstring(mpdm_gettext(t)));
}
t = mpdm_hget_s(w, L"value");
if (wcscmp(type, L"text") == 0) {
mpdm_t h;
QComboBox *ql = new QComboBox(hb);
ql->setEditable(true);
ql->setMinimumContentsLength(30);
ql->setMaxVisibleItems(8);
if (t != NULL)
ql->setEditText(str_to_qstring(t));
qlist[n] = ql;
if ((h = mpdm_hget_s(w, L"history")) != NULL) {
int i;
/* has history; fill it */
h = mp_get_history(h);
for (i = mpdm_size(h) - 1; i >= 0; i--)
ql->addItem(str_to_qstring(mpdm_aget(h, i)));
}
}
else
if (wcscmp(type, L"password") == 0) {
QLineEdit *ql = new QLineEdit(hb);
ql->setEchoMode(QLineEdit::Password);
qlist[n] = ql;
}
else
if (wcscmp(type, L"checkbox") == 0) {
QCheckBox *qc = new QCheckBox(hb);
if (mpdm_ival(t))
qc->setCheckState(Qt::Checked);
qlist[n] = qc;
}
else
if (wcscmp(type, L"list") == 0) {
int i;
QListWidget *ql = new QListWidget(hb);
ql->setMinimumWidth(480);
/* use a monospaced font */
ql->setFont(QFont(QString("Mono")));
mpdm_t l = mpdm_hget_s(w, L"list");
for (i = 0; i < mpdm_size(l); i++)
ql->addItem(str_to_qstring(mpdm_aget(l, i)));
ql->setCurrentRow(mpdm_ival(t));
qlist[n] = ql;
}
if (n == 0)
qlist[n]->setFocus(Qt::OtherFocusReason);
}
n = dialog->exec();
if (!n)
return NULL;
r = MPDM_A(mpdm_size(widget_list));
/* fill the return values */
for (n = 0; n < mpdm_size(widget_list); n++) {
mpdm_t w = mpdm_aget(widget_list, n);
mpdm_t v = NULL;
wchar_t *type;
type = mpdm_string(mpdm_hget_s(w, L"type"));
if (wcscmp(type, L"text") == 0) {
mpdm_t h;
QComboBox *ql = (QComboBox *) qlist[n];
v = qstring_to_str(ql->currentText());
/* if it has history, add to it */
if ((h = mpdm_hget_s(w, L"history")) != NULL &&
v != NULL && mpdm_cmp_s(v, L"") != 0) {
h = mp_get_history(h);
if (mpdm_cmp(v, mpdm_aget(h, -1)) != 0)
mpdm_push(h, v);
}
}
else
if (wcscmp(type, L"password") == 0) {
QLineEdit *ql = (QLineEdit *) qlist[n];
v = qstring_to_str(ql->text());
}
else
if (wcscmp(type, L"checkbox") == 0) {
QCheckBox *qb = (QCheckBox *) qlist[n];
v = MPDM_I(qb->checkState() == Qt::Checked);
}
else
if (wcscmp(type, L"list") == 0) {
QListWidget *ql = (QListWidget *) qlist[n];
v = MPDM_I(ql->currentRow());
}
mpdm_aset(r, v, n);
}
return r;
}
