62 lines
1.1 KiB
C++
62 lines
1.1 KiB
C++
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#include "cxxopts.hpp"
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namespace cxxopts
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{
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std::basic_regex<char> option_matcher
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("--([[:alpha:]][-_[:alpha:]]+)(=(.*))?|-([a-zA-Z]+)");
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std::basic_regex<char> option_specifier
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("(([a-zA-Z]),)?([a-zA-Z][-_a-zA-Z]+)");
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OptionAdder
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Options::add_options()
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{
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return OptionAdder(*this);
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}
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OptionAdder&
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OptionAdder::operator()
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(
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const std::string& opts,
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const std::string& desc
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)
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{
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std::match_results<const char*> result;
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std::regex_match(opts.c_str(), result, option_specifier);
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if (result.empty())
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{
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throw invalid_option_format_error(opts);
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}
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const auto& s = result[2];
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const auto& l = result[3];
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auto option = std::make_shared<OptionDetails>(desc);
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if (s.length() != 0)
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{
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auto result = m_options.m_short.insert(std::make_pair(s.str()[0], option));
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if (!result.second)
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{
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throw option_exists_error(s.str());
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}
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}
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if (l.length() != 0)
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{
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auto result = m_options.m_long.insert(std::make_pair(l, option));
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if (!result.second)
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{
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throw option_exists_error(l.str());
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}
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}
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return *this;
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}
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}
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