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refactor: update C++ from 17 to 23

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This commit is contained in:
yyc12345
2025-07-25 09:35:26 +08:00
parent f014e54604
commit 4f0b3d19d1
23 changed files with 335 additions and 1139 deletions
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288
src/yycc/string/op.cpp
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@ -1,196 +1,180 @@
#include "op.hpp"
#include <algorithm>
#include "reinterpret.hpp"
#define NS_YYCC_STRING ::yycc::string
#define NS_YYCC_STRING_REINTERPRET ::yycc::string::reinterpret
namespace yycc::string::op {
#pragma region Printf VPrintf
bool printf(NS_YYCC_STRING::u8string& strl, const NS_YYCC_STRING::u8char* format, ...) {
va_list argptr;
va_start(argptr, format);
bool ret = vprintf(strl, format, argptr);
va_end(argptr);
return ret;
}
template<typename TChar>
requires(sizeof(TChar) == sizeof(char))
static FormatResult<std::basic_string<TChar>> generic_printf(const TChar* format, va_list argptr) {
// Prepare result
std::basic_string<TChar> rv;
bool vprintf(NS_YYCC_STRING::u8string& strl, const NS_YYCC_STRING::u8char* format, va_list argptr) {
namespace reinterpret = NS_YYCC_STRING_REINTERPRET;
// Check format
if (format == nullptr) return std::unexpected(FormatError::NullFormat);
va_list args1;
va_copy(args1, argptr);
va_list args2;
va_copy(args2, argptr);
// Prepare variable arguments
va_list args1;
va_copy(args1, argptr);
va_list args2;
va_copy(args2, argptr);
// the return value is desired char count without NULL terminal.
// minus number means error
int count = std::vsnprintf(
nullptr,
0,
reinterpret::as_ordinary(format),
args1
);
if (count < 0) {
// invalid length returned by vsnprintf.
return false;
}
va_end(args1);
// The return value is desired char count without NULL terminal.
// Minus number means error.
int count = std::vsnprintf(nullptr, 0, reinterpret_cast<const char*>(format), args1);
// Check expected size.
if (count < 0) {
// Invalid length returned by vsnprintf.
return std::unexpected(FormatError::NoExpSize);
}
va_end(args1);
// resize std::string to desired count.
// and pass its length + 1 to std::vsnprintf,
// because std::vsnprintf only can write "buf_size - 1" chars with a trailing NULL.
// however std::vsnprintf already have a trailing NULL, so we plus 1 for it.
strl.resize(count);
int write_result = std::vsnprintf(
reinterpret::as_ordinary(strl.data()),
strl.size() + 1,
reinterpret::as_ordinary(format),
args2
);
va_end(args2);
// Resize std::string to desired count, and pass its length + 1 to std::vsnprintf,
// Because std::vsnprintf only can write "buf_size - 1" chars with a trailing NULL.
// However std::vsnprintf already have a trailing NULL, so we plus 1 for it.
rv.resize(count);
int write_result = std::vsnprintf(reinterpret_cast<char*>(rv.data()), rv.size() + 1, reinterpret_cast<const char*>(format), args2);
va_end(args2);
// Check written size.
if (write_result < 0 || write_result > count) {
// Invalid write result in vsnprintf.
return std::unexpected(FormatError::BadWrittenSize);
}
if (write_result < 0 || write_result > count) {
// invalid write result in vsnprintf.
return false;
}
// Return value
return rv;
}
return true;
}
FormatResult<std::u8string> printf(const char8_t* format, ...) {
va_list argptr;
va_start(argptr, format);
auto rv = vprintf(format, argptr);
va_end(argptr);
return rv;
}
NS_YYCC_STRING::u8string printf(const NS_YYCC_STRING::u8char* format, ...) {
NS_YYCC_STRING::u8string ret;
FormatResult<std::u8string> vprintf(const char8_t* format, va_list argptr) {
return generic_printf(format, argptr);
}
va_list argptr;
va_start(argptr, format);
vprintf(ret, format, argptr);
va_end(argptr);
FormatResult<std::string> printf(const char* format, ...) {
va_list argptr;
va_start(argptr, format);
auto rv = vprintf(format, argptr);
va_end(argptr);
return rv;
}
return ret;
}
NS_YYCC_STRING::u8string vprintf(const NS_YYCC_STRING::u8char* format, va_list argptr) {
NS_YYCC_STRING::u8string ret;
va_list argcpy;
va_copy(argcpy, argptr);
vprintf(ret, format, argcpy);
va_end(argcpy);
return ret;
}
FormatResult<std::string> vprintf(const char* format, va_list argptr) {
return generic_printf(format, argptr);
}
#pragma endregion
#pragma region Replace
void replace(NS_YYCC_STRING::u8string& strl, const NS_YYCC_STRING::u8string_view& _from_strl, const NS_YYCC_STRING::u8string_view& _to_strl) {
// Reference: https://stackoverflow.com/questions/3418231/replace-part-of-a-string-with-another-string
void replace(std::u8string& strl, const std::u8string_view& _from_strl, const std::u8string_view& _to_strl) {
// Reference: https://stackoverflow.com/questions/3418231/replace-part-of-a-string-with-another-string
// check requirements
// from string should not be empty
NS_YYCC_STRING::u8string from_strl(_from_strl);
NS_YYCC_STRING::u8string to_strl(_to_strl);
if (from_strl.empty()) return;
// check requirements
// from string should not be empty
std::u8string from_strl(_from_strl);
std::u8string to_strl(_to_strl);
if (from_strl.empty()) return;
// start replace one by one
size_t start_pos = 0;
while ((start_pos = strl.find(from_strl, start_pos)) != NS_YYCC_STRING::u8string::npos) {
strl.replace(start_pos, from_strl.size(), to_strl);
start_pos += to_strl.size(); // In case 'to' contains 'from', like replacing 'x' with 'yx'
}
}
// start replace one by one
size_t start_pos = 0;
while ((start_pos = strl.find(from_strl, start_pos)) != std::u8string::npos) {
strl.replace(start_pos, from_strl.size(), to_strl);
start_pos += to_strl.size(); // In case 'to' contains 'from', like replacing 'x' with 'yx'
}
}
NS_YYCC_STRING::u8string replace(const NS_YYCC_STRING::u8string_view& _strl, const NS_YYCC_STRING::u8string_view& _from_strl, const NS_YYCC_STRING::u8string_view& _to_strl) {
// prepare result
NS_YYCC_STRING::u8string strl(_strl);
replace(strl, _from_strl, _to_strl);
// return value
return strl;
}
std::u8string replace(const std::u8string_view& _strl, const std::u8string_view& _from_strl, const std::u8string_view& _to_strl) {
// prepare result
std::u8string strl(_strl);
replace(strl, _from_strl, _to_strl);
// return value
return strl;
}
#pragma endregion
#pragma region Join
NS_YYCC_STRING::u8string join(JoinDataProvider fct_data, const NS_YYCC_STRING::u8string_view& delimiter) {
NS_YYCC_STRING::u8string ret;
bool is_first = true;
NS_YYCC_STRING::u8string_view element;
std::u8string join(JoinDataProvider fct_data, const std::u8string_view& delimiter) {
std::u8string ret;
bool is_first = true;
std::u8string_view element;
// fetch element
while (fct_data(element)) {
// insert delimiter
if (is_first) is_first = false;
else {
// append delimiter.
ret.append(delimiter);
}
// fetch element
while (fct_data(element)) {
// insert delimiter
if (is_first) is_first = false;
else {
// append delimiter.
ret.append(delimiter);
}
// insert element if it is not empty
if (!element.empty())
ret.append(element);
}
// insert element if it is not empty
if (!element.empty()) ret.append(element);
}
return ret;
}
return ret;
}
#pragma endregion
#pragma region Upper Lower
template<bool BIsToLower>
static void generic_lower_upper(NS_YYCC_STRING::u8string& strl) {
// References:
// https://en.cppreference.com/w/cpp/algorithm/transform
// https://en.cppreference.com/w/cpp/string/byte/tolower
std::transform(
strl.cbegin(), strl.cend(), strl.begin(),
[](unsigned char c) -> char {
if constexpr (BIsToLower) return std::tolower(c);
else return std::toupper(c);
}
);
}
template<bool BIsToLower>
static void generic_lower_upper(std::u8string& strl) {
// References:
// https://en.cppreference.com/w/cpp/algorithm/transform
// https://en.cppreference.com/w/cpp/string/byte/tolower
std::transform(strl.cbegin(), strl.cend(), strl.begin(), [](unsigned char c) -> char {
if constexpr (BIsToLower) return std::tolower(c);
else return std::toupper(c);
});
}
void lower(NS_YYCC_STRING::u8string& strl) {
generic_lower_upper<true>(strl);
}
void lower(std::u8string& strl) {
generic_lower_upper<true>(strl);
}
NS_YYCC_STRING::u8string to_lower(const NS_YYCC_STRING::u8string_view& strl) {
NS_YYCC_STRING::u8string ret(strl);
lower(ret);
return ret;
}
std::u8string to_lower(const std::u8string_view& strl) {
std::u8string ret(strl);
lower(ret);
return ret;
}
void upper(NS_YYCC_STRING::u8string& strl) {
generic_lower_upper<false>(strl);
}
void upper(std::u8string& strl) {
generic_lower_upper<false>(strl);
}
NS_YYCC_STRING::u8string to_upper(const NS_YYCC_STRING::u8string_view& strl) {
// same as Lower, just replace char transform function.
NS_YYCC_STRING::u8string ret(strl);
upper(ret);
return ret;
}
std::u8string to_upper(const std::u8string_view& strl) {
// same as Lower, just replace char transform function.
std::u8string ret(strl);
upper(ret);
return ret;
}
#pragma endregion
#pragma region Split
std::vector<NS_YYCC_STRING::u8string_view> split(const NS_YYCC_STRING::u8string_view& strl, const NS_YYCC_STRING::u8string_view& _delimiter) {
std::vector<std::u8string_view> split(const std::u8string_view& strl, const std::u8string_view& _delimiter) {
// Reference:
// https://stackoverflow.com/questions/14265581/parse-split-a-string-in-c-using-string-delimiter-standard-c
// prepare return value
std::vector<NS_YYCC_STRING::u8string_view> elems;
std::vector<std::u8string_view> elems;
// if string need to be splitted is empty, return original string (empty string).
// if delimiter is empty, return original string.
NS_YYCC_STRING::u8string delimiter(_delimiter);
std::u8string delimiter(_delimiter);
if (strl.empty() || delimiter.empty()) {
elems.emplace_back(strl);
return elems;
@ -198,7 +182,7 @@ namespace yycc::string::op {
// start spliting
std::size_t previous = 0, current;
while ((current = strl.find(delimiter.c_str(), previous)) != NS_YYCC_STRING::u8string::npos) {
while ((current = strl.find(delimiter.c_str(), previous)) != std::u8string::npos) {
elems.emplace_back(strl.substr(previous, current - previous));
previous = current + delimiter.size();
}
@ -209,20 +193,20 @@ namespace yycc::string::op {
return elems;
}
std::vector<NS_YYCC_STRING::u8string> split_owned(const NS_YYCC_STRING::u8string_view& strl, const NS_YYCC_STRING::u8string_view& _delimiter) {
// call split view
std::vector<std::u8string> split_owned(const std::u8string_view& strl, const std::u8string_view& _delimiter) {
// call split view
auto view_result = split(strl, _delimiter);
// copy string view result to string
std::vector<NS_YYCC_STRING::u8string> elems;
elems.reserve(view_result.size());
for (const auto& strl_view : view_result) {
elems.emplace_back(NS_YYCC_STRING::u8string(strl_view));
}
// return copied result
return elems;
}
// copy string view result to string
std::vector<std::u8string> elems;
elems.reserve(view_result.size());
for (const auto& strl_view : view_result) {
elems.emplace_back(std::u8string(strl_view));
}
// return copied result
return elems;
}
#pragma endregion
}
} // namespace yycc::string::op