common/alstring.h

   1 #ifndef AL_STRING_H
   2 #define AL_STRING_H
   3
   4 #include <algorithm>
   5 #include <cstddef>
   6 #include <limits>
   7 #include <string>
   8 #include <string_view>
   9
  10
  11 namespace al {
  12
  13 template<typename T, typename Traits>
  14 [[nodiscard]] constexpr
  15 auto sizei(const std::basic_string_view<T,Traits> str) noexcept -> int
  16 { return static_cast<int>(std::min<std::size_t>(str.size(), std::numeric_limits<int>::max())); }
  17
  18 [[nodiscard]]
  19 constexpr bool contains(const std::string_view str0, const std::string_view str1) noexcept
  20 { return str0.find(str1) != std::string_view::npos; }
  21
  22 [[nodiscard]]
  23 constexpr bool starts_with(const std::string_view str0, const std::string_view str1) noexcept
  24 { return str0.substr(0, std::min(str0.size(), str1.size())) == str1; }
  25
  26 [[nodiscard]]
  27 constexpr bool ends_with(const std::string_view str0, const std::string_view str1) noexcept
  28 { return str0.substr(str0.size() - std::min(str0.size(), str1.size())) == str1; }
  29
  30 [[nodiscard]]
  31 int case_compare(const std::string_view str0, const std::string_view str1) noexcept;
  32
  33 [[nodiscard]]
  34 int case_compare(const std::wstring_view str0, const std::wstring_view str1) noexcept;
  35
  36 [[nodiscard]]
  37 int strcasecmp(const char *str0, const char *str1) noexcept;
  38 [[nodiscard]]
  39 int strncasecmp(const char *str0, const char *str1, std::size_t len) noexcept;
  40
  41 } // namespace al
  42
  43 #endif /* AL_STRING_H */