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refactor: expand ugly statement from while statement header to body.

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yyc12345
2025-08-20 19:32:44 +08:00
parent 050bed400d
commit 15aade052f
1 changed files with 7 additions and 2 deletions
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9
src/yycc/encoding/windows.cpp
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@ -152,8 +152,13 @@ namespace yycc::encoding::windows {
// there is a bug that the second part of surrogate pair will be dropped in final string, // there is a bug that the second part of surrogate pair will be dropped in final string,
// if there is a Unicode character located at the tail of string which need surrogate pair to be presented. // if there is a Unicode character located at the tail of string which need surrogate pair to be presented.
static const char NULL_TERMINAL = '\0'; static const char NULL_TERMINAL = '\0';
while ( while (true) {
size_t rc = std::mbrtoc16(&c16, (ptr < end ? ptr : &NULL_TERMINAL), (ptr < end ? end - ptr : sizeof(NULL_TERMINAL)), &state)) { bool not_tail = ptr < end;
const char* new_ptr = not_tail ? ptr : &NULL_TERMINAL;
size_t new_size = not_tail ? end - ptr : sizeof(NULL_TERMINAL);
size_t rc = std::mbrtoc16(&c16, new_ptr, new_size, &state);
if (!rc) break;
if (rc == (size_t) -1) return std::unexpected(ConvError::EncodeUtf8); if (rc == (size_t) -1) return std::unexpected(ConvError::EncodeUtf8);
else if (rc == (size_t) -2) return std::unexpected(ConvError::IncompleteUtf8); else if (rc == (size_t) -2) return std::unexpected(ConvError::IncompleteUtf8);
else if (rc == (size_t) -3) dst.push_back(c16); // from earlier surrogate pair else if (rc == (size_t) -3) dst.push_back(c16); // from earlier surrogate pair