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#ifndef LLMR_UTIL_TOKEN
#define LLMR_UTIL_TOKEN
#ifdef __linux__
#include <boost/regex.hpp>
namespace regex_impl = boost;
#else
#include <regex>
namespace regex_impl = std;
#endif
#include <map>
namespace llmr {
namespace util {
namespace detail {
const regex_impl::regex tokenRegex("\\{(\\w+)\\}");
const regex_impl::sregex_token_iterator tokensEnd = regex_impl::sregex_token_iterator();
}
template <typename Lookup>
std::string replaceTokens(const std::string &source, const Lookup &lookup) {
std::string result;
result.reserve(source.size());
bool token = false;
for (auto token_it = regex_impl::sregex_token_iterator(source.begin(), source.end(),
detail::tokenRegex, {-1, 1});
token_it != detail::tokensEnd; ++token_it, token = !token) {
if (!token_it->matched) {
continue;
}
result += token ? lookup(token_it->str()) : token_it->str();
}
return result;
}
template <typename T>
inline std::string replaceTokens(const std::string &source, const std::map<std::string, T> &properties) {
return replaceTokens(source, [&properties](const std::string &token) -> std::string {
const auto it_prop = properties.find(token);
return it_prop != properties.end() ? toString(it_prop->second) : "";
});
}
} // end namespace util
} // end namespace llmr
#endif
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