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https://github.com/matrix-construct/construct
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ircd: Add functors for iless/iequals/igreater.
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1 changed files with 159 additions and 6 deletions
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@ -151,8 +151,9 @@ string_view tokens_after(const string_view &str, const char *const &sep, const s
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//
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//
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// Simple case insensitive comparison convenience utils
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// Simple case insensitive comparison convenience utils
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bool iequals(const string_view &a, const string_view &b);
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struct iless;
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bool iless(const string_view &a, const string_view &b);
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struct igreater;
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struct iequals;
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// Vintage
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// Vintage
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size_t strlcpy(char *const &dest, const char *const &src, const size_t &bufmax);
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size_t strlcpy(char *const &dest, const char *const &src, const size_t &bufmax);
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@ -537,9 +538,56 @@ ircd::strlcat(char *const &dest,
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}
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}
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#endif
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#endif
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struct ircd::iless
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{
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using is_transparent = std::true_type;
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bool s;
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operator const bool &() const { return s; }
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bool operator()(const string_view &a, const string_view &b) const;
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bool operator()(const string_view &a, const std::string &b) const;
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bool operator()(const std::string &a, const string_view &b) const;
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bool operator()(const std::string &a, const std::string &b) const;
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template<class A,
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class B>
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iless(A&& a, B&& b)
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:s{operator()(std::forward<A>(a), std::forward<B>(b))}
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{}
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iless() = default;
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};
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inline bool
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inline bool
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ircd::iless(const string_view &a,
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ircd::iless::operator()(const std::string &a,
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const std::string &b)
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const
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{
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return operator()(string_view{a}, string_view{b});
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}
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inline bool
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ircd::iless::operator()(const string_view &a,
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const std::string &b)
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const
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{
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return operator()(a, string_view{b});
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}
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inline bool
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ircd::iless::operator()(const std::string &a,
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const string_view &b)
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const string_view &b)
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const
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{
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return operator()(string_view{a}, b);
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}
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inline bool
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ircd::iless::operator()(const string_view &a,
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const string_view &b)
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const
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{
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{
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return std::lexicographical_compare(begin(a), end(a), begin(b), end(b), []
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return std::lexicographical_compare(begin(a), end(a), begin(b), end(b), []
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(const char &a, const char &b)
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(const char &a, const char &b)
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@ -548,9 +596,56 @@ ircd::iless(const string_view &a,
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});
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});
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}
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}
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struct ircd::iequals
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{
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using is_transparent = std::true_type;
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bool s;
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operator const bool &() const { return s; }
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bool operator()(const string_view &a, const string_view &b) const;
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bool operator()(const string_view &a, const std::string &b) const;
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bool operator()(const std::string &a, const string_view &b) const;
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bool operator()(const std::string &a, const std::string &b) const;
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template<class A,
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class B>
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iequals(A&& a, B&& b)
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:s{operator()(std::forward<A>(a), std::forward<B>(b))}
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{}
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iequals() = default;
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};
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inline bool
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inline bool
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ircd::iequals(const string_view &a,
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ircd::iequals::operator()(const std::string &a,
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const std::string &b)
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const
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{
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return operator()(string_view{a}, string_view{b});
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}
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inline bool
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ircd::iequals::operator()(const string_view &a,
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const std::string &b)
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const
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{
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return operator()(a, string_view{b});
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}
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inline bool
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ircd::iequals::operator()(const std::string &a,
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const string_view &b)
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const string_view &b)
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const
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{
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return operator()(string_view{a}, b);
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}
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inline bool
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ircd::iequals::operator()(const string_view &a,
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const string_view &b)
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const
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{
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{
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return std::equal(begin(a), end(a), begin(b), end(b), []
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return std::equal(begin(a), end(a), begin(b), end(b), []
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(const char &a, const char &b)
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(const char &a, const char &b)
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@ -559,6 +654,64 @@ ircd::iequals(const string_view &a,
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});
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});
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}
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}
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struct ircd::igreater
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{
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using is_transparent = std::true_type;
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bool s;
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operator const bool &() const { return s; }
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bool operator()(const string_view &a, const string_view &b) const;
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bool operator()(const string_view &a, const std::string &b) const;
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bool operator()(const std::string &a, const string_view &b) const;
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bool operator()(const std::string &a, const std::string &b) const;
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template<class A,
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class B>
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igreater(A&& a, B&& b)
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:s{operator()(std::forward<A>(a), std::forward<B>(b))}
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{}
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igreater() = default;
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};
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inline bool
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ircd::igreater::operator()(const std::string &a,
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const std::string &b)
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const
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{
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return operator()(string_view{a}, string_view{b});
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}
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inline bool
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ircd::igreater::operator()(const string_view &a,
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const std::string &b)
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const
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{
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return operator()(a, string_view{b});
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}
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inline bool
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ircd::igreater::operator()(const std::string &a,
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const string_view &b)
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const
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{
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return operator()(string_view{a}, b);
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}
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inline bool
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ircd::igreater::operator()(const string_view &a,
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const string_view &b)
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const
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{
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return std::lexicographical_compare(begin(a), end(a), begin(b), end(b), []
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(const char &a, const char &b)
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{
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return tolower(a) > tolower(b);
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});
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}
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template<class T>
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template<class T>
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ircd::string_view
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ircd::string_view
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ircd::lex_cast(const T &t)
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ircd::lex_cast(const T &t)
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