diff options
Diffstat (limited to 'Minecraft.Server/Common/StringUtils.cpp')
| -rw-r--r-- | Minecraft.Server/Common/StringUtils.cpp | 212 |
1 files changed, 212 insertions, 0 deletions
diff --git a/Minecraft.Server/Common/StringUtils.cpp b/Minecraft.Server/Common/StringUtils.cpp new file mode 100644 index 00000000..40881ae7 --- /dev/null +++ b/Minecraft.Server/Common/StringUtils.cpp @@ -0,0 +1,212 @@ +#include "stdafx.h" + +#include "StringUtils.h" + +#include <cctype> +#include <errno.h> +#include <stdio.h> +#include <stdlib.h> + +namespace ServerRuntime +{ + namespace StringUtils + { + std::string WideToUtf8(const std::wstring &value) + { + if (value.empty()) + { + return std::string(); + } + + int charCount = WideCharToMultiByte(CP_UTF8, 0, value.c_str(), (int)value.length(), NULL, 0, NULL, NULL); + if (charCount <= 0) + { + return std::string(); + } + + std::string utf8; + utf8.resize(charCount); + WideCharToMultiByte(CP_UTF8, 0, value.c_str(), (int)value.length(), &utf8[0], charCount, NULL, NULL); + return utf8; + } + + std::wstring Utf8ToWide(const char *value) + { + if (value == NULL || value[0] == 0) + { + return std::wstring(); + } + + int wideCount = MultiByteToWideChar(CP_UTF8, 0, value, -1, NULL, 0); + if (wideCount <= 0) + { + // Fall back to the current ANSI code page so legacy non-UTF-8 inputs remain readable. + wideCount = MultiByteToWideChar(CP_ACP, 0, value, -1, NULL, 0); + if (wideCount <= 0) + { + return std::wstring(); + } + + std::wstring wide; + wide.resize(wideCount - 1); + MultiByteToWideChar(CP_ACP, 0, value, -1, &wide[0], wideCount); + return wide; + } + + std::wstring wide; + wide.resize(wideCount - 1); + MultiByteToWideChar(CP_UTF8, 0, value, -1, &wide[0], wideCount); + return wide; + } + + std::wstring Utf8ToWide(const std::string &value) + { + return Utf8ToWide(value.c_str()); + } + + std::string StripUtf8Bom(const std::string &value) + { + if (value.size() >= 3 && + (unsigned char)value[0] == 0xEF && + (unsigned char)value[1] == 0xBB && + (unsigned char)value[2] == 0xBF) + { + return value.substr(3); + } + + return value; + } + + std::string TrimAscii(const std::string &value) + { + size_t start = 0; + while (start < value.length() && std::isspace((unsigned char)value[start])) + { + ++start; + } + + size_t end = value.length(); + while (end > start && std::isspace((unsigned char)value[end - 1])) + { + --end; + } + + return value.substr(start, end - start); + } + + std::string ToLowerAscii(const std::string &value) + { + std::string lowered = value; + for (size_t i = 0; i < lowered.length(); ++i) + { + lowered[i] = (char)std::tolower((unsigned char)lowered[i]); + } + return lowered; + } + + std::string JoinTokens(const std::vector<std::string> &tokens, size_t startIndex, const char *separator) + { + if (startIndex >= tokens.size()) + { + return std::string(); + } + + const auto joinSeparator = std::string((separator != nullptr) ? separator : " "); + size_t totalLength = 0; + for (size_t i = startIndex; i < tokens.size(); ++i) + { + totalLength += tokens[i].size(); + } + + totalLength += (tokens.size() - startIndex - 1) * joinSeparator.size(); + std::string joined; + joined.reserve(totalLength); + for (size_t i = startIndex; i < tokens.size(); ++i) + { + if (!joined.empty()) + { + joined += joinSeparator; + } + + joined += tokens[i]; + } + + return joined; + } + + bool StartsWithIgnoreCase(const std::string &value, const std::string &prefix) + { + if (prefix.size() > value.size()) + { + return false; + } + + for (size_t i = 0; i < prefix.size(); ++i) + { + unsigned char a = (unsigned char)value[i]; + unsigned char b = (unsigned char)prefix[i]; + if (std::tolower(a) != std::tolower(b)) + { + return false; + } + } + + return true; + } + + bool TryParseUnsignedLongLong(const std::string &value, unsigned long long *outValue) + { + if (outValue == nullptr) + { + return false; + } + + const std::string trimmed = TrimAscii(value); + if (trimmed.empty()) + { + return false; + } + + errno = 0; + char *end = nullptr; + const unsigned long long parsed = _strtoui64(trimmed.c_str(), &end, 0); + if (end == trimmed.c_str() || errno != 0) + { + return false; + } + + while (*end == ' ' || *end == '\t' || *end == '\r' || *end == '\n') + { + ++end; + } + + if (*end != 0) + { + return false; + } + + *outValue = parsed; + return true; + } + + std::string GetCurrentUtcTimestampIso8601() + { + SYSTEMTIME utc = {}; + GetSystemTime(&utc); + + char created[64] = {}; + sprintf_s( + created, + sizeof(created), + "%04u-%02u-%02uT%02u:%02u:%02uZ", + (unsigned)utc.wYear, + (unsigned)utc.wMonth, + (unsigned)utc.wDay, + (unsigned)utc.wHour, + (unsigned)utc.wMinute, + (unsigned)utc.wSecond); + return created; + } + } +} + |