in FBRetainCycleDetector/Layout/Classes/Parser/FBStructEncodingParser.mm [52:62]
const std::string scanUpToCharacterFromSet(const std::string &characterSet) {
size_t pos = string.find_first_of(characterSet, index);
if (pos == std::string::npos) {
index = string.length();
return "";
}
std::string inBetweenString = string.substr(index, pos-index);
index = pos;
return inBetweenString;
}