mirror of
https://github.com/oxen-io/lokinet.git
synced 2024-11-17 15:25:35 +00:00
117 lines
3.0 KiB
C++
117 lines
3.0 KiB
C++
#include "str.hpp"
|
|
|
|
#include <cstring>
|
|
#include <string>
|
|
|
|
#ifdef _WIN32
|
|
#include <llarp/win32/exception.hpp>
|
|
|
|
#include <windows.h>
|
|
|
|
#include <stringapiset.h>
|
|
#endif
|
|
|
|
namespace llarp
|
|
{
|
|
constexpr static char whitespace[] = " \t\n\r\f\v";
|
|
|
|
std::string_view
|
|
TrimWhitespace(std::string_view str)
|
|
{
|
|
size_t begin = str.find_first_not_of(whitespace);
|
|
if (begin == std::string_view::npos)
|
|
{
|
|
str.remove_prefix(str.size());
|
|
return str;
|
|
}
|
|
str.remove_prefix(begin);
|
|
|
|
size_t end = str.find_last_not_of(whitespace);
|
|
if (end != std::string_view::npos)
|
|
str.remove_suffix(str.size() - end - 1);
|
|
|
|
return str;
|
|
}
|
|
|
|
using namespace std::literals;
|
|
|
|
std::vector<std::string_view>
|
|
split(std::string_view str, const std::string_view delim, bool trim)
|
|
{
|
|
std::vector<std::string_view> results;
|
|
// Special case for empty delimiter: splits on each character boundary:
|
|
if (delim.empty())
|
|
{
|
|
results.reserve(str.size());
|
|
for (size_t i = 0; i < str.size(); i++)
|
|
results.emplace_back(str.data() + i, 1);
|
|
return results;
|
|
}
|
|
|
|
for (size_t pos = str.find(delim); pos != std::string_view::npos; pos = str.find(delim))
|
|
{
|
|
if (!trim || !results.empty() || pos > 0)
|
|
results.push_back(str.substr(0, pos));
|
|
str.remove_prefix(pos + delim.size());
|
|
}
|
|
if (!trim || str.size())
|
|
results.push_back(str);
|
|
else
|
|
while (!results.empty() && results.back().empty())
|
|
results.pop_back();
|
|
return results;
|
|
}
|
|
|
|
std::vector<std::string_view>
|
|
split_any(std::string_view str, const std::string_view delims, bool trim)
|
|
{
|
|
if (delims.empty())
|
|
return split(str, delims, trim);
|
|
std::vector<std::string_view> results;
|
|
for (size_t pos = str.find_first_of(delims); pos != std::string_view::npos;
|
|
pos = str.find_first_of(delims))
|
|
{
|
|
if (!trim || !results.empty() || pos > 0)
|
|
results.push_back(str.substr(0, pos));
|
|
size_t until = str.find_first_not_of(delims, pos + 1);
|
|
if (until == std::string_view::npos)
|
|
str.remove_prefix(str.size());
|
|
else
|
|
str.remove_prefix(until);
|
|
}
|
|
if (!trim || str.size())
|
|
results.push_back(str);
|
|
else
|
|
while (!results.empty() && results.back().empty())
|
|
results.pop_back();
|
|
return results;
|
|
}
|
|
|
|
std::string
|
|
lowercase_ascii_string(std::string src)
|
|
{
|
|
for (char& ch : src)
|
|
if (ch >= 'A' && ch <= 'Z')
|
|
ch = ch + ('a' - 'A');
|
|
return src;
|
|
}
|
|
|
|
std::wstring
|
|
to_wide(std::string data)
|
|
{
|
|
std::wstring buf;
|
|
buf.resize(data.size());
|
|
#ifdef _WIN32
|
|
// win32 specific codepath because balmer made windows so that man may suffer
|
|
if (MultiByteToWideChar(CP_UTF8, 0, data.c_str(), data.size(), buf.data(), buf.size()) == 0)
|
|
throw win32::error{GetLastError(), "failed to convert string to wide string"};
|
|
|
|
#else
|
|
// this dumb but probably works (i guess?)
|
|
std::transform(
|
|
data.begin(), data.end(), buf.begin(), [](const auto& ch) -> wchar_t { return ch; });
|
|
#endif
|
|
return buf;
|
|
}
|
|
} // namespace llarp
|