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#ifndef defaultModuleLabel_h
#define defaultModuleLabel_h
// C++ headers
#include <string>
// boost headers
#include <boost/version.hpp>
#if BOOST_VERSION < 105200
#include <boost/units/detail/utility.hpp>
#else
#include <boost/core/demangle.hpp>
#endif
template <typename T>
std::string defaultModuleLabel() {
// start with the demangled name for T
#if BOOST_VERSION < 105200
std::string name = boost::units::detail::demangle(typeid(T).name());
#else
std::string name = boost::core::demangle(typeid(T).name());
#endif
// expected size of the label
unsigned int size = 0;
for (char c : name)
if (std::isalnum(c))
++size;
std::string label;
label.reserve(size);
// tokenize the demangled name, keeping only alphanumeric characters,
// and convert the tokens to lowerCamelCase.
bool new_token = false;
for (char c : name) {
if (std::isalnum(c)) {
if (new_token)
label.push_back((char)std::toupper(c));
else
label.push_back(c);
new_token = false;
} else {
new_token = true;
}
}
// if the label is all uppercase, change it to all lowercase
// if the label starts with more than one uppercase letter, change n-1 to lowercase
// otherwise, change the first letter to lowercase
unsigned int ups = 0;
for (char c : label)
if (std::isupper(c))
++ups;
else
break;
if (ups > 1 and ups != label.size())
--ups;
for (unsigned int i = 0; i < ups; ++i)
label[i] = std::tolower(label[i]);
return label;
}
#endif // defaultModuleLabel_h
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