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refactor: use source_location, not region_base*

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ToruNiina
2020-07-27 22:29:18 +09:00
parent ce68f6f4c2
commit 32a5341d09
5 changed files with 296 additions and 281 deletions
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101
toml/region.hpp
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@@ -412,107 +412,6 @@ struct region final : public region_base
const_iterator first_, last_;
};
// to show a better error message.
inline std::string format_underline(const std::string& message,
const std::vector<std::pair<region_base const*, std::string>>& reg_com,
const std::vector<std::string>& helps = {},
const bool colorize = TOML11_ERROR_MESSAGE_COLORIZED)
{
assert(!reg_com.empty());
const auto line_num_width = static_cast<int>(std::max_element(
reg_com.begin(), reg_com.end(),
[](std::pair<region_base const*, std::string> const& lhs,
std::pair<region_base const*, std::string> const& rhs)
{
return lhs.first->line_num().size() < rhs.first->line_num().size();
}
)->first->line_num().size());
std::ostringstream retval;
if(colorize)
{
retval << color::colorize; // turn on ANSI color
}
// XXX
// Here, before `colorize` support, it does not output `[error]` prefix
// automatically. So some user may output it manually and this change may
// duplicate the prefix. To avoid it, check the first 7 characters and
// if it is "[error]", it removes that part from the message shown.
if(message.size() > 7 && message.substr(0, 7) == "[error]")
{
retval << color::bold << color::red << "[error]" << color::reset
<< color::bold << message.substr(7) << color::reset << '\n';
}
else
{
retval << color::bold << color::red << "[error] " << color::reset
<< color::bold << message << color::reset << '\n';
}
for(auto iter = reg_com.begin(); iter != reg_com.end(); ++iter)
{
// if the filenames are the same, print "..."
if(iter != reg_com.begin() &&
std::prev(iter)->first->name() == iter->first->name())
{
retval << color::bold << color::blue << "\n ...\n" << color::reset;
}
else // if filename differs, print " --> filename.toml"
{
if(iter != reg_com.begin()) {retval << '\n';}
retval << color::bold << color::blue << " --> " << color::reset
<< iter->first->name() << '\n';
// add one almost-empty line for readability
retval << make_string(static_cast<std::size_t>(line_num_width + 1), ' ')
<< color::bold << color::blue << " | " << color::reset << '\n';
}
const region_base* const reg = iter->first;
const std::string& comment = iter->second;
retval << ' ' << color::bold << color::blue << std::setw(line_num_width)
<< std::right << reg->line_num() << " | " << color::reset
<< reg->line() << '\n';
retval << make_string(static_cast<std::size_t>(line_num_width + 1), ' ')
<< color::bold << color::blue << " | " << color::reset
<< make_string(reg->before(), ' ');
if(reg->size() == 1)
{
// invalid
// ^------
retval << color::bold << color::red
<< '^' << make_string(reg->after(), '-') << color::reset;
}
else
{
// invalid
// ~~~~~~~
const auto underline_len = (std::min)(reg->size(), reg->line().size());
retval << color::bold << color::red
<< make_string(underline_len, '~') << color::reset;
}
retval << ' ';
retval << comment;
}
if(!helps.empty())
{
retval << '\n';
retval << make_string(static_cast<std::size_t>(line_num_width + 1), ' ');
retval << color::bold << color::blue << " | " << color::reset;
for(const auto& help : helps)
{
retval << color::bold << "\nHint: " << color::reset;
retval << help;
}
}
return retval.str();
}
} // detail
} // toml
#endif// TOML11_REGION_H