Straightened out file extensions

repl/repl_main.c

@@ -132,6 +132,14 @@ int main(int argc, const char* argv[]) {
 
 	//run source file
 	if (Toy_commandLine.sourcefile) {
+		//only works on toy files
+		const char* s = strrchr(Toy_commandLine.sourcefile, '.');
+		if (!s || strcmp(s, ".toy")) {
+			fprintf(stderr, TOY_CC_ERROR "Bad file extension passed to %s (expected '.toy', found '%s')" TOY_CC_RESET, argv[0], s);
+			return -1;
+		}
+
+		//run the source file
 		Toy_runSourceFile(Toy_commandLine.sourcefile);
 
 		//lib cleanup
@@ -152,6 +160,19 @@ int main(int argc, const char* argv[]) {
 
 	//compile source file
 	if (Toy_commandLine.compilefile && Toy_commandLine.outfile) {
+		//only works on toy and tb files
+		const char* c = strrchr(Toy_commandLine.compilefile, '.');
+		if (!c || strcmp(c, ".toy")) {
+			fprintf(stderr, TOY_CC_ERROR "Bad file extension passed to %s (expected '.toy', found '%s')" TOY_CC_RESET, argv[0], c);
+			return -1;
+		}
+		const char* o = strrchr(Toy_commandLine.outfile, '.');
+		if (!o || strcmp(o, ".tb")) {
+			fprintf(stderr, TOY_CC_ERROR "Bad file extension passed to %s (expected '.tb', found '%s')" TOY_CC_RESET, argv[0], o);
+			return -1;
+		}
+
+		//compile and save
 		size_t size = 0;
 		const char* source = Toy_readFile(Toy_commandLine.compilefile, &size);
 		if (!source) {
@@ -167,6 +188,14 @@ int main(int argc, const char* argv[]) {
 
 	//run binary
 	if (Toy_commandLine.binaryfile) {
+		//only works on tb files
+		const char* c = strrchr(Toy_commandLine.binaryfile, '.');
+		if (!c || strcmp(c, ".tb")) {
+			fprintf(stderr, TOY_CC_ERROR "Bad file extension passed to %s (expected '.tb', found '%s')" TOY_CC_RESET, argv[0], c); //this one is never seen
+			return -1;
+		}
+
+		//run the binary file
 		Toy_runBinaryFile(Toy_commandLine.binaryfile);
 
 		//lib cleanup

source/toy_common.c

@@ -94,7 +94,7 @@ void Toy_initCommandLine(int argc, const char* argv[]) {
 }
 
 void Toy_usageCommandLine(int argc, const char* argv[]) {
-	printf("Usage: %s [<file.tb> | -h | -v | [-d][-f file | -i source | -c file [-o outfile]]]\n\n", argv[0]);
+	printf("Usage: %s [ file.tb | -h | -v | [ -d ][ -f file.toy | -i source | -c file.toy [ -o outfile.tb ]]]\n\n", argv[0]);
 }
 
 void Toy_helpCommandLine(int argc, const char* argv[]) {

source/toy_interpreter.c

@@ -1507,7 +1507,7 @@ static bool execImport(Toy_Interpreter* interpreter) {
 	if (!Toy_existsLiteralDictionary(interpreter->hooks, identifier)) {
 		interpreter->errorOutput("Unknown library name in import statement: ");
 		Toy_printLiteralCustom(identifier, interpreter->errorOutput);
-		interpreter->errorOutput("\"\n");
+		interpreter->errorOutput("\n");
 
 		Toy_freeLiteral(alias);
 		Toy_freeLiteral(identifier);