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Diffstat (limited to 'src/toml11/toml/source_location.hpp')
| -rw-r--r-- | src/toml11/toml/source_location.hpp | 233 |
1 files changed, 0 insertions, 233 deletions
diff --git a/src/toml11/toml/source_location.hpp b/src/toml11/toml/source_location.hpp deleted file mode 100644 index fa175b5b4..000000000 --- a/src/toml11/toml/source_location.hpp +++ /dev/null @@ -1,233 +0,0 @@ -// Copyright Toru Niina 2019. -// Distributed under the MIT License. -#ifndef TOML11_SOURCE_LOCATION_HPP -#define TOML11_SOURCE_LOCATION_HPP -#include <cstdint> -#include <sstream> - -#include "region.hpp" - -namespace toml -{ - -// A struct to contain location in a toml file. -// The interface imitates std::experimental::source_location, -// but not completely the same. -// -// It would be constructed by toml::value. It can be used to generate -// user-defined error messages. -// -// - std::uint_least32_t line() const noexcept -// - returns the line number where the region is on. -// - std::uint_least32_t column() const noexcept -// - returns the column number where the region starts. -// - std::uint_least32_t region() const noexcept -// - returns the size of the region. -// -// +-- line() +-- region of interest (region() == 9) -// v .---+---. -// 12 | value = "foo bar" -// ^ -// +-- column() -// -// - std::string const& file_name() const noexcept; -// - name of the file. -// - std::string const& line_str() const noexcept; -// - the whole line that contains the region of interest. -// -struct source_location -{ - public: - - source_location() - : line_num_(1), column_num_(1), region_size_(1), - file_name_("unknown file"), line_str_("") - {} - - explicit source_location(const detail::region_base* reg) - : line_num_(1), column_num_(1), region_size_(1), - file_name_("unknown file"), line_str_("") - { - if(reg) - { - if(reg->line_num() != detail::region_base().line_num()) - { - line_num_ = static_cast<std::uint_least32_t>( - std::stoul(reg->line_num())); - } - column_num_ = static_cast<std::uint_least32_t>(reg->before() + 1); - region_size_ = static_cast<std::uint_least32_t>(reg->size()); - file_name_ = reg->name(); - line_str_ = reg->line(); - } - } - - explicit source_location(const detail::region& reg) - : line_num_(static_cast<std::uint_least32_t>(std::stoul(reg.line_num()))), - column_num_(static_cast<std::uint_least32_t>(reg.before() + 1)), - region_size_(static_cast<std::uint_least32_t>(reg.size())), - file_name_(reg.name()), - line_str_ (reg.line()) - {} - explicit source_location(const detail::location& loc) - : line_num_(static_cast<std::uint_least32_t>(std::stoul(loc.line_num()))), - column_num_(static_cast<std::uint_least32_t>(loc.before() + 1)), - region_size_(static_cast<std::uint_least32_t>(loc.size())), - file_name_(loc.name()), - line_str_ (loc.line()) - {} - - ~source_location() = default; - source_location(source_location const&) = default; - source_location(source_location &&) = default; - source_location& operator=(source_location const&) = default; - source_location& operator=(source_location &&) = default; - - std::uint_least32_t line() const noexcept {return line_num_;} - std::uint_least32_t column() const noexcept {return column_num_;} - std::uint_least32_t region() const noexcept {return region_size_;} - - std::string const& file_name() const noexcept {return file_name_;} - std::string const& line_str() const noexcept {return line_str_;} - - private: - - std::uint_least32_t line_num_; - std::uint_least32_t column_num_; - std::uint_least32_t region_size_; - std::string file_name_; - std::string line_str_; -}; - -namespace detail -{ - -// internal error message generation. -inline std::string format_underline(const std::string& message, - const std::vector<std::pair<source_location, std::string>>& loc_com, - const std::vector<std::string>& helps = {}, - const bool colorize = TOML11_ERROR_MESSAGE_COLORIZED) -{ - std::size_t line_num_width = 0; - for(const auto& lc : loc_com) - { - std::uint_least32_t line = lc.first.line(); - std::size_t digit = 0; - while(line != 0) - { - line /= 10; - digit += 1; - } - line_num_width = (std::max)(line_num_width, digit); - } - // 1 is the minimum width - line_num_width = std::max<std::size_t>(line_num_width, 1); - - 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'; - } - - const auto format_one_location = [line_num_width] - (std::ostringstream& oss, - const source_location& loc, const std::string& comment) -> void - { - oss << ' ' << color::bold << color::blue - << std::setw(static_cast<int>(line_num_width)) - << std::right << loc.line() << " | " << color::reset - << loc.line_str() << '\n'; - - oss << make_string(line_num_width + 1, ' ') - << color::bold << color::blue << " | " << color::reset - << make_string(loc.column()-1 /*1-origin*/, ' '); - - if(loc.region() == 1) - { - // invalid - // ^------ - oss << color::bold << color::red << "^---" << color::reset; - } - else - { - // invalid - // ~~~~~~~ - const auto underline_len = (std::min)( - static_cast<std::size_t>(loc.region()), loc.line_str().size()); - oss << color::bold << color::red - << make_string(underline_len, '~') << color::reset; - } - oss << ' '; - oss << comment; - return; - }; - - assert(!loc_com.empty()); - - // --> example.toml - // | - retval << color::bold << color::blue << " --> " << color::reset - << loc_com.front().first.file_name() << '\n'; - retval << make_string(line_num_width + 1, ' ') - << color::bold << color::blue << " |\n" << color::reset; - // 1 | key value - // | ^--- missing = - format_one_location(retval, loc_com.front().first, loc_com.front().second); - - // process the rest of the locations - for(std::size_t i=1; i<loc_com.size(); ++i) - { - const auto& prev = loc_com.at(i-1); - const auto& curr = loc_com.at(i); - - retval << '\n'; - // if the filenames are the same, print "..." - if(prev.first.file_name() == curr.first.file_name()) - { - retval << color::bold << color::blue << " ...\n" << color::reset; - } - else // if filename differs, print " --> filename.toml" again - { - retval << color::bold << color::blue << " --> " << color::reset - << curr.first.file_name() << '\n'; - retval << make_string(line_num_width + 1, ' ') - << color::bold << color::blue << " |\n" << color::reset; - } - - format_one_location(retval, curr.first, curr.second); - } - - if(!helps.empty()) - { - retval << '\n'; - retval << make_string(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_SOURCE_LOCATION_HPP |