Wt::WTreeNode * WebApp::createMenuNode(const Wt::WString& label, Wt::WTreeNode *parentNode, ShowExample f, const char * icon) {
Wt::WIconPair *labelIcon = new Wt::WIconPair(icon, icon, false);
labelIcon->icon1()->resize(30, 30);
labelIcon->icon2()->resize(30, 30);
Wt::WTreeNode *node = new Wt::WTreeNode(label, labelIcon, parentNode);
node->label()->setFormatting(Wt::WText::PlainFormatting);
node->label()->clicked.connect(this, f);
node->labelIcon()->icon1Clicked.connect(this, f);
node->labelIcon()->icon2Clicked.connect(this, f);
node->labelIcon()->setStyleClass("licon");
node->setSelectable(true);
return node;
}
void Tester::Match(lua_sandbox* lsb, const string& input)
{
lua_State* lua = lsb_get_lua(lsb);
if (!lua) return;
if (!CreateGlobalMatch(lua)) {
stringstream ss;
ss << "lpeg.match is not available";
Wt::WText* t = new Wt::WText(ss.str(), mResult);
t->setStyleClass("result_error");
Wt::log("info") << ss.str();
return;
}
if (lsb_pcall_setup(lsb, kMatchFunction)) {
stringstream ss;
ss << "lsb_pcall_setup() failed";
Wt::WText* t = new Wt::WText(ss.str(), mResult);
t->setStyleClass("result_error");
Wt::log("info") << ss.str();
return;
}
lua_getglobal(lua, "grammar");
if (!lua_isuserdata(lua, -1)) {
stringstream ss;
ss << "no global grammar variable was found";
Wt::WText* t = new Wt::WText(ss.str(), mResult);
t->setStyleClass("result_error");
Wt::log("info") << ss.str();
return;
}
lua_pushstring(lua, input.c_str());
if (lua_pcall(lua, 2, LUA_MULTRET, 0) != 0) {
char err[LSB_ERROR_SIZE];
int len = snprintf(err, LSB_ERROR_SIZE, "%s() %s", kMatchFunction,
lua_tostring(lua, -1));
if (len >= LSB_ERROR_SIZE || len < 0) {
err[LSB_ERROR_SIZE - 1] = 0;
}
stringstream ss;
ss << err;
Wt::WText* t = new Wt::WText(ss.str(), mResult);
t->setStyleClass("result_error");
Wt::log("info") << ss.str();
lsb_terminate(lsb, err);
return;
}
// iterater over the results
int results = lua_gettop(lua);
if (LUA_TNIL == lua_type(lua, 1)) {
stringstream ss;
ss << "no match";
Wt::WText* t = new Wt::WText(ss.str(), mResult);
t->setStyleClass("result_error");
} else {
Wt::WTree* tree = new Wt::WTree(mResult);
tree->setSelectionMode(Wt::SingleSelection);
Wt::WTreeNode* root = new Wt::WTreeNode("Returned Values");
root->setStyleClass("tree_results");
tree->setTreeRoot(root);
root->label()->setTextFormat(Wt::PlainText);
root->setLoadPolicy(Wt::WTreeNode::NextLevelLoading);
for (int i = 1; i <= results; ++i) {
stringstream ss;
OutputItem(lua, i, root, ss);
}
root->expand();
}
lua_pop(lua, lua_gettop(lua)); // clear the stack
lsb_pcall_teardown(lsb);
}