class invalid_signature: public runtime_error
{
public:
- invalid_signature(const std::string &k, const std::string & s):
+ invalid_signature(const std::string &k, const std::string &s):
runtime_error(format("%s %s", k, s))
{ }
try
{
+ if(!aux_loaders.empty() && !has_keyword(st.keyword))
+ {
+ for(list<Loader *>::const_iterator i=aux_loaders.begin(); i!=aux_loaders.end(); ++i)
+ if((*i)->has_keyword(st.keyword))
+ return (*i)->load_statement(st);
+ }
+
LoaderAction *act = find_action(ActionKey(st.keyword, st.get_signature()));
if(act)
{
actions[key] = act;
}
+void Loader::add_auxiliary_loader(Loader &ldr)
+{
+ aux_loaders.push_back(&ldr);
+}
+
+bool Loader::has_keyword(const string &kwd) const
+{
+ ActionMap::const_iterator i = actions.lower_bound(ActionKey(kwd, string()));
+ return i!=actions.end() && i->first.keyword==kwd;
+}
+
LoaderAction *Loader::find_action(const ActionKey &key) const
{
ActionMap::const_iterator begin = actions.lower_bound(ActionKey(key.keyword, string()));