GrammarInfo::GrammarInfo(VXIrecGrammar * g,
const vxistring & id,
const VXMLElement & elem)
: element(elem), recgrammar(g), scope(GRS_NONE), docID(id), enabled(false)
{
// (1) Determine the grammar scope.
// (1.1) Obtain default from position in the tree.
VXMLElement par = elem;
while (par != 0) {
VXMLElementType name = par.GetName();
if (name == NODE_INITIAL || name == NODE_FIELD ||
name == NODE_RECORD || name == NODE_TRANSFER)
{ scope = GRS_FIELD; break; }
else if (name == NODE_FORM || name == NODE_MENU)
{ scope = GRS_DIALOG; break; }
else if (name == NODE_VXML)
{ scope = GRS_DOC; break; }
par = par.GetParent();
}
// (1.2) if scope explicitly specified in grammar or parent, override!
vxistring str;
elem.GetAttribute(ATTRIBUTE_SCOPE, str);
if (str.empty() && par != 0) {
par.GetAttribute(ATTRIBUTE_SCOPE, str);
}
if (!str.empty()) {
if (str == L"dialog") scope = GRS_DIALOG;
else if (str == L"document") scope = GRS_DOC;
}
// (2) Do remaining initialization.
_Initialize(elem);
}
void GrammarInfo::_Initialize(const VXMLElement & elem)
{
if (elem == 0) return;
VXMLElementType name = elem.GetName();
if (name == NODE_FIELD || name == NODE_INITIAL || name == NODE_TRANSFER)
elem.GetAttribute(ATTRIBUTE__ITEMNAME, field);
else if (name == NODE_FORM || name == NODE_MENU) {
elem.GetAttribute(ATTRIBUTE__ITEMNAME, dialog);
return;
}
_Initialize(elem.GetParent());
}