Method LoadIniSettingsFromMemory

KBotExt/imgui/imgui.cpp:12971–13039

Zero-tolerance, no error reporting, cheap .ini parsing Set ini_size==0 to let us use strlen(ini_data). Do not call this function with a 0 if your buffer is actually empty!

// Zero-tolerance, no error reporting, cheap .ini parsing
// Set ini_size==0 to let us use strlen(ini_data). Do not call this function with a 0 if your buffer is actually empty!
void ImGui::LoadIniSettingsFromMemory(const char* ini_data, size_t ini_size)
{
	ImGuiContext& g = *GImGui;
	IM_ASSERT(g.Initialized);
	//IM_ASSERT(!g.WithinFrameScope && "Cannot be called between NewFrame() and EndFrame()");
	//IM_ASSERT(g.SettingsLoaded == false && g.FrameCount == 0);

	// For user convenience, we allow passing a non zero-terminated string (hence the ini_size parameter).
	// For our convenience and to make the code simpler, we'll also write zero-terminators within the buffer. So let's create a writable copy..
	if (ini_size == 0)
		ini_size = strlen(ini_data);
	g.SettingsIniData.Buf.resize((int)ini_size + 1);
	char* const buf = g.SettingsIniData.Buf.Data;
	char* const buf_end = buf + ini_size;
	memcpy(buf, ini_data, ini_size);
	buf_end[0] = 0;

	// Call pre-read handlers
	// Some types will clear their data (e.g. dock information) some types will allow merge/override (window)
	for (ImGuiSettingsHandler& handler : g.SettingsHandlers)
		if (handler.ReadInitFn != NULL)
			handler.ReadInitFn(&g, &handler);

	void* entry_data = NULL;
	ImGuiSettingsHandler* entry_handler = NULL;

	char* line_end = NULL;
	for (char* line = buf; line < buf_end; line = line_end + 1)
	{
		// Skip new lines markers, then find end of the line
		while (*line == '\n' || *line == '\r')
			line++;
		line_end = line;
		while (line_end < buf_end && *line_end != '\n' && *line_end != '\r')
			line_end++;
		line_end[0] = 0;
		if (line[0] == ';')
			continue;
		if (line[0] == '[' && line_end > line && line_end[-1] == ']')
		{
			// Parse "[Type][Name]". Note that 'Name' can itself contains [] characters, which is acceptable with the current format and parsing code.
			line_end[-1] = 0;
			const char* name_end = line_end - 1;
			const char* type_start = line + 1;
			char* type_end = (char*)(void*)ImStrchrRange(type_start, name_end, ']');
			const char* name_start = type_end ? ImStrchrRange(type_end + 1, name_end, '[') : NULL;
			if (!type_end || !name_start)
				continue;
			*type_end = 0; // Overwrite first ']'
			name_start++;  // Skip second '['
			entry_handler = FindSettingsHandler(type_start);
			entry_data = entry_handler ? entry_handler->ReadOpenFn(&g, entry_handler, name_start) : NULL;
		}
		else if (entry_handler != NULL && entry_data != NULL)
		{
			// Let type handler parse the line
			entry_handler->ReadLineFn(&g, entry_handler, entry_data, line);
		}