Function PathAppendString

common/FileSystem.cpp:100–140

template <typename T>
static inline void PathAppendString(std::string& dst, const T& src)
{
	if (dst.capacity() < (dst.length() + src.length()))
		dst.reserve(dst.length() + src.length());

	bool last_separator = (!dst.empty() && dst.back() == FS_OSPATH_SEPARATOR_CHARACTER);

	size_t index = 0;

#ifdef _WIN32
	// special case for UNC paths here
	if (dst.empty() && src.length() >= 3 && src[0] == '\\' && src[1] == '\\' && src[2] != '\\')
	{
		dst.append("\\\\");
		index = 2;
	}
#endif

	for (; index < src.length(); index++)
	{
		const char ch = src[index];

#ifdef _WIN32
		// convert forward slashes to backslashes
		if (ch == '\\' || ch == '/')
#else
		if (ch == '/')
#endif
		{
			if (last_separator)
				continue;
			last_separator = true;
			dst.push_back(FS_OSPATH_SEPARATOR_CHARACTER);
		}
		else
		{
			last_separator = false;
			dst.push_back(ch);
		}
	}
}

std::string Path::SanitizeFileName(const std::string_view str, bool strip_slashes /* = true */)
{