1 files changed, 0 insertions, 129 deletions
diff --git a/drafts/String.cpp b/drafts/String.cpp
deleted file mode 100644
index eb585523..00000000
--- a/drafts/String.cpp
+++ /dev/null
@@ -1,129 +0,0 @@
-#include "cru/win/String.hpp"
-
-#include "cru/win/Exception.hpp"
-
-#include <type_traits>
-
-namespace cru::platform::win {
-std::string ToUtf8String(const std::wstring_view& string) {
-  if (string.empty()) return std::string{};
-
-  const auto length = ::WideCharToMultiByte(
-      CP_UTF8, WC_ERR_INVALID_CHARS, string.data(),
-      static_cast<int>(string.size()), nullptr, 0, nullptr, nullptr);
-  if (length == 0) {
-    throw Win32Error(::GetLastError(),
-                     "Failed to convert wide string to UTF-8.");
-  }
-
-  std::string result;
-  result.resize(length);
-  if (::WideCharToMultiByte(CP_UTF8, WC_ERR_INVALID_CHARS, string.data(),
-                            static_cast<int>(string.size()), result.data(),
-                            static_cast<int>(result.size()), nullptr,
-                            nullptr) == 0)
-    throw Win32Error(::GetLastError(),
-                     "Failed to convert wide string to UTF-8.");
-  return result;
-}
-
-std::wstring ToUtf16String(const std::string_view& string) {
-  if (string.empty()) return std::wstring{};
-
-  const auto length =
-      ::MultiByteToWideChar(CP_UTF8, MB_ERR_INVALID_CHARS, string.data(),
-                            static_cast<int>(string.size()), nullptr, 0);
-  if (length == 0) {
-    throw Win32Error(::GetLastError(),
-                     "Failed to convert wide string to UTF-16.");
-  }
-
-  std::wstring result;
-  result.resize(length);
-  if (::MultiByteToWideChar(CP_UTF8, MB_ERR_INVALID_CHARS, string.data(),
-                            static_cast<int>(string.size()), result.data(),
-                            static_cast<int>(result.size())) == 0)
-    throw win::Win32Error(::GetLastError(),
-                          "Failed to convert wide string to UTF-16.");
-  return result;
-}
-
-template <typename UInt, int number_of_bit>
-inline std::enable_if_t<std::is_unsigned_v<UInt>, CodePoint> ExtractBits(
-    UInt n) {
-  return static_cast<CodePoint>(n & ((1u << number_of_bit) - 1));
-}
-
-CodePoint Utf16Iterator::Next() {
-  if (position_ == static_cast<Index>(string_.length()))
-    return k_code_point_end;
-
-  const auto cu0 = static_cast<std::uint16_t>(string_[position_++]);
-
-  if (cu0 < 0xd800u || cu0 >= 0xe000u) {  // 1-length code point
-    return static_cast<CodePoint>(cu0);
-  } else if (cu0 <= 0xdbffu) {  // 2-length code point
-    if (position_ == static_cast<Index>(string_.length())) {
-      throw TextEncodeException(
-          "Unexpected end when reading second code unit of surrogate pair.");
-    }
-    const auto cu1 = static_cast<std::uint16_t>(string_[position_++]);
-
-#ifdef CRU_DEBUG
-    if (cu1 < 0xDC00u || cu1 > 0xdfffu) {
-      throw TextEncodeException(
-          "Unexpected bad-format second code unit of surrogate pair.");
-    }
-#endif
-
-    const auto s0 = ExtractBits<std::uint16_t, 10>(cu0) << 10;
-    const auto s1 = ExtractBits<std::uint16_t, 10>(cu1);
-
-    return s0 + s1 + 0x10000;
-
-  } else {
-    throw TextEncodeException(
-        "Unexpected bad-format first code unit of surrogate pair.");
-  }
-}
-
-Index IndexUtf8ToUtf16(const std::string_view& utf8_string, Index utf8_index,
-                       const std::wstring_view& utf16_string) {
-  if (utf8_index >= static_cast<Index>(utf8_string.length()))
-    return utf16_string.length();
-
-  Index cp_index = 0;
-  Utf8Iterator iter{utf8_string};
-  while (iter.CurrentPosition() <= utf8_index) {
-    iter.Next();
-    cp_index++;
-  }
-
-  Utf16Iterator result_iter{utf16_string};
-  for (Index i = 0; i < cp_index - 1; i++) {
-    if (result_iter.Next() == k_code_point_end) break;
-  }
-
-  return result_iter.CurrentPosition();
-}
-
-Index IndexUtf16ToUtf8(const std::wstring_view& utf16_string, Index utf16_index,
-                       const std::string_view& utf8_string) {
-  if (utf16_index >= static_cast<Index>(utf16_string.length()))
-    return utf8_string.length();
-
-  Index cp_index = 0;
-  Utf16Iterator iter{utf16_string};
-  while (iter.CurrentPosition() <= utf16_index) {
-    iter.Next();
-    cp_index++;
-  }
-
-  Utf8Iterator result_iter{utf8_string};
-  for (Index i = 0; i < cp_index - 1; i++) {
-    if (result_iter.Next() == k_code_point_end) break;
-  }
-
-  return result_iter.CurrentPosition();
-}
-}  // namespace cru::platform::win