/* PCSX2 - PS2 Emulator for PCs
* Copyright (C) 2002-2021 PCSX2 Dev Team
*
* PCSX2 is free software: you can redistribute it and/or modify it under the terms
* of the GNU Lesser General Public License as published by the Free Software Found-
* ation, either version 3 of the License, or (at your option) any later version.
*
* PCSX2 is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
* without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
* PURPOSE. See the GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along with PCSX2.
* If not, see <http://www.gnu.org/licenses/>.
*/
#include "PrecompiledHeader.h"
#include "StringUtil.h"
#include <cctype>
#include <codecvt>
#include <cstdio>
#include <sstream>
#include <algorithm>
#ifdef _WIN32
#include "RedtapeWindows.h"
#endif
namespace StringUtil
{
std::string StdStringFromFormat(const char* format, ...)
{
std::va_list ap;
va_start(ap, format);
std::string ret = StdStringFromFormatV(format, ap);
va_end(ap);
return ret;
}
std::string StdStringFromFormatV(const char* format, std::va_list ap)
{
std::va_list ap_copy;
va_copy(ap_copy, ap);
#ifdef _WIN32
int len = _vscprintf(format, ap_copy);
#else
int len = std::vsnprintf(nullptr, 0, format, ap_copy);
#endif
va_end(ap_copy);
std::string ret;
ret.resize(len);
std::vsnprintf(ret.data(), ret.size() + 1, format, ap);
return ret;
}
bool WildcardMatch(const char* subject, const char* mask, bool case_sensitive /*= true*/)
{
if (case_sensitive)
{
const char* cp = nullptr;
const char* mp = nullptr;
while ((*subject) && (*mask != '*'))
{
if ((*mask != '?') && (std::tolower(*mask) != std::tolower(*subject)))
return false;
mask++;
subject++;
}
while (*subject)
{
if (*mask == '*')
{
if (*++mask == 0)
return true;
mp = mask;
cp = subject + 1;
}
else
{
if ((*mask == '?') || (std::tolower(*mask) == std::tolower(*subject)))
{
mask++;
subject++;
}
else
{
mask = mp;
subject = cp++;
}
}
}
while (*mask == '*')
{
mask++;
}
return *mask == 0;
}
else
{
const char* cp = nullptr;
const char* mp = nullptr;
while ((*subject) && (*mask != '*'))
{
if ((*mask != *subject) && (*mask != '?'))
return false;
mask++;
subject++;
}
while (*subject)
{
if (*mask == '*')
{
if (*++mask == 0)
return true;
mp = mask;
cp = subject + 1;
}
else
{
if ((*mask == *subject) || (*mask == '?'))
{
mask++;
subject++;
}
else
{
mask = mp;
subject = cp++;
}
}
}
while (*mask == '*')
{
mask++;
}
return *mask == 0;
}
}
std::size_t Strlcpy(char* dst, const char* src, std::size_t size)
{
std::size_t len = std::strlen(src);
if (len < size)
{
std::memcpy(dst, src, len + 1);
}
else
{
std::memcpy(dst, src, size - 1);
dst[size - 1] = '\0';
}
return len;
}
std::size_t Strlcpy(char* dst, const std::string_view& src, std::size_t size)
{
std::size_t len = src.length();
if (len < size)
{
std::memcpy(dst, src.data(), len);
dst[len] = '\0';
}
else
{
std::memcpy(dst, src.data(), size - 1);
dst[size - 1] = '\0';
}
return len;
}
std::optional<std::vector<u8>> DecodeHex(const std::string_view& in)
{
std::vector<u8> data;
data.reserve(in.size() / 2);
for (size_t i = 0; i < in.size() / 2; i++)
{
std::optional<u8> byte = StringUtil::FromChars<u8>(in.substr(i * 2, 2), 16);
if (byte.has_value())
data.push_back(*byte);
else
return std::nullopt;
}
return {data};
}
std::string EncodeHex(const u8* data, int length)
{
std::stringstream ss;
for (int i = 0; i < length; i++)
ss << std::hex << std::setfill('0') << std::setw(2) << static_cast<int>(data[i]);
return ss.str();
}
std::string toLower(const std::string_view& input)
{
std::string newStr;
std::transform(input.begin(), input.end(), std::back_inserter(newStr),
[](unsigned char c) { return std::tolower(c); });
return newStr;
}
bool compareNoCase(const std::string_view& str1, const std::string_view& str2)
{
if (str1.length() != str2.length())
{
return false;
}
return Strncasecmp(str1.data(), str2.data(), str1.length()) == 0;
}
std::vector<std::string> splitOnNewLine(const std::string& str)
{
std::vector<std::string> lines;
std::istringstream stream(str);
std::string line;
while (std::getline(stream, line))
{
lines.push_back(line);
}
return lines;
}
std::string_view StripWhitespace(const std::string_view& str)
{
std::string_view::size_type start = 0;
while (start < str.size() && std::isspace(str[start]))
start++;
if (start == str.size())
return {};
std::string_view::size_type end = str.size() - 1;
while (end > start && std::isspace(str[end]))
end--;
return str.substr(start, end - start + 1);
}
std::wstring UTF8StringToWideString(const std::string_view& str)
{
std::wstring ret;
if (!UTF8StringToWideString(ret, str))
return {};
return ret;
}
bool UTF8StringToWideString(std::wstring& dest, const std::string_view& str)
{
#ifdef _WIN32
int wlen = MultiByteToWideChar(CP_UTF8, 0, str.data(), static_cast<int>(str.length()), nullptr, 0);
if (wlen < 0)
return false;
dest.resize(wlen);
if (wlen > 0 && MultiByteToWideChar(CP_UTF8, 0, str.data(), static_cast<int>(str.length()), dest.data(), wlen) < 0)
return false;
return true;
#else
// This depends on wxString, which isn't great. But hopefully we won't need any wide strings outside
// of windows once wx is gone anyway.
if (str.empty())
{
dest.clear();
return true;
}
const wxString wxstr(wxString::FromUTF8(str.data(), str.length()));
if (wxstr.IsEmpty())
return false;
dest = wxstr.ToStdWstring();
return true;
#endif
}
std::string WideStringToUTF8String(const std::wstring_view& str)
{
std::string ret;
if (!WideStringToUTF8String(ret, str))
ret.clear();
return ret;
}
bool WideStringToUTF8String(std::string& dest, const std::wstring_view& str)
{
#ifdef _WIN32
int mblen = WideCharToMultiByte(CP_UTF8, 0, str.data(), static_cast<int>(str.length()), nullptr, 0, nullptr, nullptr);
if (mblen < 0)
return false;
dest.resize(mblen);
if (mblen > 0 && WideCharToMultiByte(CP_UTF8, 0, str.data(), static_cast<int>(str.length()), dest.data(), mblen,
nullptr, nullptr) < 0)
{
return false;
}
return true;
#else
// This depends on wxString, which isn't great. But hopefully we won't need any wide strings outside
// of windows once wx is gone anyway.
if (str.empty())
{
dest.clear();
return true;
}
const wxString wxstr(str.data(), str.data() + str.length());
if (wxstr.IsEmpty())
return false;
const auto buf = wxstr.ToUTF8();
dest.assign(buf.data(), buf.length());
return true;
#endif
}
} // namespace StringUtil