restored 'dofile' function

src/run.c

@@ -115,6 +115,57 @@ static void tick(Run* run)
 		setStudioMode(TIC_CONSOLE_MODE);
 }
 
+static void processDoFile(void* data, char* dst)
+{
+	Run* run = (Run*)data;
+	tic_mem* tic = run->tic;
+
+	static const char DoFileTag[] = "dofile(";
+	enum {Size = sizeof DoFileTag - 1};
+
+	if (memcmp(tic->cart.code.data, DoFileTag, Size) == 0)
+	{
+		const char* start = tic->cart.code.data + Size;
+		const char* end = strchr(start, ')');
+
+		if(end && *start == *(end-1) && (*start == '"' || *start == '\''))
+		{
+			char filename[FILENAME_MAX] = {0};
+			memcpy(filename, start + 1, end - start - 2);
+			memset(dst, 0, sizeof(tic_code));
+
+			s32 size = 0;
+			void* buffer = fsReadFile(filename, &size);
+
+			if(buffer)
+			{
+				if(size > 0)
+				{
+					if(size > TIC_CODE_SIZE)
+					{
+						char buffer[256];
+						sprintf(buffer, "code is larger than %i symbols", TIC_CODE_SIZE);
+						onError(run, buffer);
+
+						return;
+					}
+					else SDL_memcpy(dst, buffer, size);
+				}
+			}
+			else
+			{
+				char buffer[256];
+				sprintf(buffer, "dofile: file '%s' not found", filename);
+				onError(run, buffer);
+
+				return;
+			}
+		}
+	}
+
+	return;
+}
+
 void initRun(Run* run, Console* console, tic_mem* tic)
 {
 	*run = (Run)
@@ -133,6 +184,7 @@ void initRun(Run* run, Console* console, tic_mem* tic)
 			.start = 0,
 			.data = run,
 			.exit = onExit,
+			.preprocessor = processDoFile,
 		},
 	};
 

src/tic.c

@@ -1377,44 +1377,61 @@ static void api_tick(tic_mem* memory, tic_tick_data* data)
 	
 	if(!machine->state.initialized)
 	{
-		cart2ram(memory);
 
-		const char* code = machine->memory.cart.code.data;
+		char* code = malloc(sizeof(tic_code));
 
-		if(strlen(code))
+		if(code)
 		{
-			memory->input = compareMetatag(code, "input", "mouse") ? tic_mouse_input : tic_gamepad_input;
+			memcpy(code, machine->memory.cart.code.data, sizeof(tic_code));
 
-			if(memory->input == tic_mouse_input)
-				memory->ram.vram.vars.mask.data = 0;
+			if(data->preprocessor)
+				data->preprocessor(data->data, code);
 
-			memory->script = tic_script_lua;
+			bool done = false;
 
-			if (isMoonscript(code))
+			if(strlen(code))
 			{
-				if(!initMoonscript(machine, code))
-					return;
+				cart2ram(memory);
+				memory->input = compareMetatag(code, "input", "mouse") ? tic_mouse_input : tic_gamepad_input;
 
-				memory->script = tic_script_moon;
+				if(memory->input == tic_mouse_input)
+					memory->ram.vram.vars.mask.data = 0;
+
+				memory->script = tic_script_lua;
+
+				if (isMoonscript(code))
+				{
+					if(initMoonscript(machine, code))
+					{
+						memory->script = tic_script_moon;
+						done = true;
+					}
+				}
+				else if(isJavascript(code))
+				{
+					if(initJavascript(machine, code))
+					{
+						memory->script = tic_script_js;
+						done = true;
+					}
+				}
+				else if(initLua(machine, code))
+					done = true;
 			}
-			else if(isJavascript(code))
+			else
 			{
-				if(!initJavascript(machine, code))
-					return;
-
-				memory->script = tic_script_js;
+				machine->data->error(machine->data->data, "the code is empty");
 			}
-			else if(!initLua(machine, code))
-				return;
-		}
-		else
-		{
-			machine->data->error(machine->data->data, "the code is empty");
-			return;
-		}
 
-		machine->state.scanline = memory->script == tic_script_js ? callJavascriptScanline : callLuaScanline;
-		machine->state.initialized = true;
+			free(code);
+
+			if(done)
+			{
+				machine->state.scanline = memory->script == tic_script_js ? callJavascriptScanline : callLuaScanline;
+				machine->state.initialized = true;				
+			}
+			else return;
+		}
 	}
 
 	memory->script == tic_script_js

src/ticapi.h

@@ -56,6 +56,8 @@ typedef struct
 	u64 (*freq)();
 	u64 start;
 
+	void (*preprocessor)(void* data, char* dst);
+
 	void* data;
 } tic_tick_data;