ConfigNode
ConfigNode::lookup(
const ConfigNode &value)
const
{
if (value.IsDefined() && value.IsScalar() && IsDefined() && IsMap()) {
ConfigNode v = (*this)[value.Scalar()];
if (v) {
return v;
}
}
return value;
}
std::string
ConfigException::build_what(
const ConfigNode &node,
const std::string &msg)
{
std::stringstream o;
if (node.IsScalar()) {
o << msg << ": '" << node.path() << "': '" << node.Scalar()
<< "' from source '" << node.source() << "'";
} else {
o << msg << ": '" << node.path() << "' from source '"
<< node.source() << "'";
}
return o.str();
}
void print(const ConfigNode& in, const std::string& indent, std::ostream& os, bool longMap, bool newlines,
unsigned maxDepth) {
if (maxDepth == 0) {
os << "...";
return;
}
if (in.IsScalar()) {
os << indent << in.as<std::string>();
return;
}
std::string deeperIndent;
if (newlines) {
deeperIndent = indent;
deeperIndent.push_back(' ');
deeperIndent.push_back(' ');
}
bool const sequence = in.IsSequence();
bool const map = in.IsMap();
if (!(sequence || map)) return;
YAML::const_iterator i = in.begin(), end = in.end();
if (sequence) {
if (newlines && !sequenceAllScalar(in.begin(), in.end())) {
for (; i != end; ++i) {
os << indent << "- ";
ConfigNode node = *i;
if (node.IsScalar())
os << node.as<std::string>();
else
print(*i, deeperIndent, os, longMap, newlines, --maxDepth);
os << '\n';
}
} else {
os << indent << "[ ";
bool first = true;
for (; i != end; ++i) {
ConfigNode node = *i;
if (!first) os << ", ";
if (node.IsScalar())
os << node.as<std::string>();
else if (node.IsMap())
print(node, "", os, longMap, newlines, --maxDepth);
else if (node.IsSequence())
print(node, "", os, longMap, newlines, --maxDepth);
first = false;
}
os << " ]";
}
} else {
assert(map);
if (!longMap && !newlines) longMap = true;
if (longMap) {
os << " { ";
}
if (newlines) os << '\n';
bool first = true;
for (; i != end; ++i) {
std::string const& key = i->first.as<std::string>();
ConfigNode val = i->second;
if (!val.IsNull()) {
if (!first) {
if (longMap) os << ", ";
if (newlines) os << '\n';
}
os << (newlines && longMap ? deeperIndent : indent) << key << ": ";
if (val.IsScalar())
os << val.as<std::string>();
else
print(val, deeperIndent, os, longMap, newlines, --maxDepth);
}
first = false;
}
if (longMap) {
if (newlines) {
os << '\n';
os << indent << "}";
} else
os << indent << " }";
}
}
}
