/**
* Returns a child of *this whose key is @a key.
* If no such child exists, returns an unconstructed vconfig (use null() to test
* for this).
*/
vconfig vconfig::child(const std::string& key) const
{
if (const config &natural = cfg_->child(key)) {
return vconfig(natural, cache_);
}
BOOST_FOREACH(const config &ins, cfg_->child_range("insert_tag"))
{
vconfig insert_cfg(ins);
if(insert_cfg["name"] == key) {
variable_info vinfo(insert_cfg["variable"], false, variable_info::TYPE_CONTAINER);
if(!vinfo.is_valid) {
return empty_vconfig();
}
return vconfig(vinfo.as_container(), true);
}
}
return unconstructed_vconfig();
}
/**
* Returns a child of *this whose key is @a key.
* If no such child exists, returns an unconstructed vconfig (use null() to test
* for this).
*/
vconfig vconfig::child(const std::string& key) const
{
if (const config &natural = cfg_->child(key)) {
return vconfig(natural, cache_);
}
for (const config &ins : cfg_->child_range("insert_tag"))
{
vconfig insert_cfg(ins);
if(insert_cfg["name"] == key)
{
try
{
config::const_child_itors range = as_nonempty_range(insert_cfg["variable"]);
return vconfig(*range.first, true);
}
catch(const invalid_variablename_exception&)
{
return empty_vconfig();
}
}
}
return unconstructed_vconfig();
}
