std::pair<TweakableState, char> TweakableParser<char>::parse(Containers::ArrayView<const char> value) {
if(value.size() < 3 || value.front() != '\'' || value.back() != '\'') {
Warning{} << "Utility::TweakableParser:" << std::string{value, value.size()} << "is not a character literal";
return {TweakableState::Recompile, {}};
}
if(value[1] == '\\') {
Error{} << "Utility::TweakableParser: escape sequences in char literals are not implemented, sorry";
return {TweakableState::Error, {}};
}
return {TweakableState::Success, value[1]};
}
std::pair<TweakableState, long double> TweakableParser<long double>::parse(Containers::ArrayView<const char> value) {
char* end;
const long double result = std::strtold(value, &end);
if(end == value.begin() || std::find(value.begin(), value.end(), '.') == value.end()) {
Warning{} << "Utility::TweakableParser:" << std::string{value, value.size()} << "is not a floating-point literal";
return {TweakableState::Recompile, {}};
}
/* If value would be empty, the above catches that */
if(value.back() != 'l' && value.back() != 'L') {
Warning{} << "Utility::TweakableParser:" << std::string{value, value.size()} << "has an unexpected suffix, expected l";
return {TweakableState::Recompile, {}};
}
if(end != value.end() - 1) {
Warning{} << "Utility::TweakableParser: unexpected characters" << std::string{const_cast<const char*>(end), value.end()} << "after a floating-point literal";
return {TweakableState::Recompile, {}};
}
return {TweakableState::Success, result};
}
std::pair<TweakableState, long> TweakableParser<long>::parse(Containers::ArrayView<const char> value) {
const std::pair<const char*, int> valueBase = integerBase(value);
char* end;
const long result = std::strtol(valueBase.first, &end, valueBase.second);
if(end == value.begin()) {
Warning{} << "Utility::TweakableParser:" << std::string{value, value.size()} << "is not an integer literal";
return {TweakableState::Recompile, {}};
}
/* If value would be empty, the above catches that */
if(value.back() != 'l' && value.back() != 'L') {
Warning{} << "Utility::TweakableParser:" << std::string{value, value.size()} << "has an unexpected suffix, expected l";
return {TweakableState::Recompile, {}};
}
if(end != value.end() - 1) {
Warning{} << "Utility::TweakableParser: unexpected characters" << std::string{const_cast<const char*>(end), value.end()} << "after an integer literal";
return {TweakableState::Recompile, {}};
}
return {TweakableState::Success, result};
}
