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feat: format any number of values into an err msg

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```cpp
toml::format_error("[error] message", v1, "v1", v2, "v2", ...);
```
This commit is contained in:
ToruNiina
2019-03-15 12:38:37 +09:00
parent 0babe8d589
commit 61dfa4a2dc
1 changed files with 28 additions and 14 deletions
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42
toml/value.hpp
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@@ -794,24 +794,38 @@ inline bool operator>=(const toml::value& lhs, const toml::value& rhs)
return !(lhs < rhs); return !(lhs < rhs);
} }
inline std::string format_error(const std::string& err_msg, namespace detail
const toml::value& v, const std::string& comment,
std::vector<std::string> hints = {})
{ {
return detail::format_underline(err_msg, { inline std::string format_error_impl(const std::string& err_msg,
{std::addressof(detail::get_region(v)), comment} std::vector<std::pair<region_base const*, std::string>> val,
}, std::move(hints)); std::vector<std::string> hints)
{
return format_underline(err_msg, std::move(val), std::move(hints));
}
inline std::string format_error_impl(const std::string& err_msg,
std::vector<std::pair<region_base const*, std::string>> val)
{
return format_underline(err_msg, std::move(val));
} }
inline std::string format_error(const std::string& err_msg, template<typename ... Ts>
const toml::value& v1, const std::string& comment1, std::string format_error_impl(const std::string& err_msg,
const toml::value& v2, const std::string& comment2, std::vector<std::pair<region_base const*, std::string>> val,
std::vector<std::string> hints = {}) const toml::value& v, const std::string& comment,
Ts&& ... args)
{ {
return detail::format_underline(err_msg, { val.push_back(std::make_pair(std::addressof(get_region(v)), comment));
{std::addressof(detail::get_region(v1)), comment1}, return format_error_impl(err_msg, std::move(val), std::forward<Ts>(args)...);
{std::addressof(detail::get_region(v2)), comment2} }
}, std::move(hints)); } // detail
template<typename ... Ts>
std::string format_error(const std::string& err_msg, Ts&& ... args)
{
std::vector<std::pair<detail::region_base const*, std::string>> val;
val.reserve(sizeof...(args) / 2);
return detail::format_error_impl(err_msg, std::move(val),
std::forward<Ts>(args)...);
} }
template<typename Visitor> template<typename Visitor>