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test: add testbench for string module

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This commit is contained in:
yyc12345
2025-06-22 17:14:49 +08:00
parent df3b602110
commit ab8d74efe6
8 changed files with 211 additions and 97 deletions
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68
src/yycc/string/op.cpp
View File

@ -114,18 +114,18 @@ namespace yycc::string::op {
#pragma region Join
NS_YYCC_STRING::u8string join(JoinDataProvider fct_data, const NS_YYCC_STRING::u8string_view& decilmer) {
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;
// fetch element
while (fct_data(element)) {
// insert decilmer
// insert delimiter
if (is_first) is_first = false;
else {
// append decilmer.
ret.append(decilmer);
// append delimiter.
ret.append(delimiter);
}
// insert element if it is not empty
@ -179,9 +179,37 @@ namespace yycc::string::op {
#pragma region Split
std::vector<NS_YYCC_STRING::u8string> split(const NS_YYCC_STRING::u8string_view& strl, const NS_YYCC_STRING::u8string_view& _decilmer) {
std::vector<NS_YYCC_STRING::u8string_view> split(const NS_YYCC_STRING::u8string_view& strl, const NS_YYCC_STRING::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;
// 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);
if (strl.empty() || delimiter.empty()) {
elems.emplace_back(strl);
return elems;
}
// start spliting
std::size_t previous = 0, current;
while ((current = strl.find(delimiter.c_str(), previous)) != NS_YYCC_STRING::u8string::npos) {
elems.emplace_back(strl.substr(previous, current - previous));
previous = current + delimiter.size();
}
// try insert last part but prevent possible out of range exception
if (previous <= strl.size()) {
elems.emplace_back(strl.substr(previous));
}
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
auto view_result = split_view(strl, _decilmer);
auto view_result = split(strl, _delimiter);
// copy string view result to string
std::vector<NS_YYCC_STRING::u8string> elems;
@ -193,34 +221,6 @@ namespace yycc::string::op {
return elems;
}
std::vector<NS_YYCC_STRING::u8string_view> split_view(const NS_YYCC_STRING::u8string_view& strl, const NS_YYCC_STRING::u8string_view& _decilmer) {
// 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;
// if string need to be splitted is empty, return original string (empty string).
// if decilmer is empty, return original string.
NS_YYCC_STRING::u8string decilmer(_decilmer);
if (strl.empty() || decilmer.empty()) {
elems.emplace_back(strl);
return elems;
}
// start spliting
std::size_t previous = 0, current;
while ((current = strl.find(decilmer.c_str(), previous)) != NS_YYCC_STRING::u8string::npos) {
elems.emplace_back(strl.substr(previous, current - previous));
previous = current + decilmer.size();
}
// try insert last part but prevent possible out of range exception
if (previous <= strl.size()) {
elems.emplace_back(strl.substr(previous));
}
return elems;
}
#pragma endregion
}

45
src/yycc/string/op.hpp
View File

@ -77,10 +77,10 @@ namespace yycc::string::op {
* You can use this universal join function for any custom container by
* using C++ lambda syntax to create a code block adapted to this function pointer.
* @param[in] fct_data The function pointer in JoinDataProvider type prividing the data to be joined.
* @param[in] decilmer The decilmer used for joining.
* @param[in] delimiter The delimiter used for joining.
* @return The result string of joining.
*/
NS_YYCC_STRING::u8string join(JoinDataProvider fct_data, const NS_YYCC_STRING::u8string_view& decilmer);
NS_YYCC_STRING::u8string join(JoinDataProvider fct_data, const NS_YYCC_STRING::u8string_view& delimiter);
/**
* @brief Specialized join function for standard library container.
* @tparam InputIt
@ -88,11 +88,11 @@ namespace yycc::string::op {
* It also can be dereferenced and then implicitly converted to NS_YYCC_STRING::u8string_view.
* @param[in] first The beginning of the range of elements to join.
* @param[in] last The terminal of the range of elements to join (exclusive).
* @param[in] decilmer The decilmer used for joining.
* @param[in] delimiter The delimiter used for joining.
* @return The result string of joining.
*/
template<class InputIt>
NS_YYCC_STRING::u8string join(InputIt first, InputIt last, const NS_YYCC_STRING::u8string_view& decilmer) {
NS_YYCC_STRING::u8string join(InputIt first, InputIt last, const NS_YYCC_STRING::u8string_view& delimiter) {
return join([&first, &last](NS_YYCC_STRING::u8string_view& view) -> bool {
// if we reach tail, return false to stop join process
if (first == last) return false;
@ -100,7 +100,7 @@ namespace yycc::string::op {
view = *first;
++first;
return true;
}, decilmer);
}, delimiter);
}
/**
@ -126,30 +126,31 @@ namespace yycc::string::op {
*/
NS_YYCC_STRING::u8string upper(const NS_YYCC_STRING::u8string_view& strl);
/**
* @brief Split given string with specified delimiter as string view.
* @param[in] strl The string need to be splitting.
* @param[in] _delimiter The delimiter for splitting.
* @return
* The split result with string view format.
* This will not produce any copy of original string.
* \par
* If given string or delimiter are empty,
* the result container will only contain 1 entry which is equal to given string.
* @see Split(const NS_YYCC_STRING::u8string_view&, const NS_YYCC_STRING::u8char*)
*/
std::vector<NS_YYCC_STRING::u8string_view> split(const NS_YYCC_STRING::u8string_view& strl, const NS_YYCC_STRING::u8string_view& _delimiter);
/**
* @brief Split given string with specified decilmer.
* @brief Split given string with specified delimiter.
* @param[in] strl The string need to be splitting.
* @param[in] _decilmer The decilmer for splitting.
* @param[in] _delimiter The delimiter for splitting.
* @return
* The split result.
* \par
* If given string or decilmer are empty,
* If given string or delimiter are empty,
* the result container will only contain 1 entry which is equal to given string.
*/
std::vector<NS_YYCC_STRING::u8string> split(const NS_YYCC_STRING::u8string_view& strl, const NS_YYCC_STRING::u8string_view& _decilmer);
/**
* @brief Split given string with specified decilmer as string view.
* @param[in] strl The string need to be splitting.
* @param[in] _decilmer The decilmer for splitting.
* @return
* The split result with string view format.
* This will not produce any copy of original string.
* \par
* If given string or decilmer are empty,
* the result container will only contain 1 entry which is equal to given string.
* @see Split(const NS_YYCC_STRING::u8string_view&, const NS_YYCC_STRING::u8char*)
*/
std::vector<NS_YYCC_STRING::u8string_view> split_view(const NS_YYCC_STRING::u8string_view& strl, const NS_YYCC_STRING::u8string_view& _decilmer);
std::vector<NS_YYCC_STRING::u8string> split_owned(const NS_YYCC_STRING::u8string_view& strl, const NS_YYCC_STRING::u8string_view& _delimiter);
// undefined lazy_split(const NS_YYCC_STRING::u8string_view& strl, const NS_YYCC_STRING::u8string_view& _delimiter);
}