Support backslash at end of line as continuation

kuroko.c

@@ -547,10 +547,14 @@ _finishArgs:
 				 * continue to accept input. Our compiler isn't really
 				 * set up to let us compile "on the fly" so we can't just
 				 * run lines through it and see if it wants more... */
-				if (lineLength > 2 && lines[i][lineLength-2] == ':') {
+				if (lineLength > 1 && lines[i][lineLength-2] == ':') {
 					inBlock = 1;
 					blockWidth = countSpaces + 4;
 					continue;
+				} else if (lineLength > 1 && lines[i][lineLength-2] == '\\') {
+					inBlock = 1;
+					blockWidth = 0;
+					continue;
 				} else if (inBlock && lineLength != 1) {
 					if (isSpaces) {
 						free(lines[i]);

scanner.c

@@ -308,6 +308,12 @@ KrkToken krk_scanToken() {
 		return out;
 	}
 
+	if (c == '\\' && peek() == '\n') {
+		advance();
+		nextLine();
+		return makeToken(TOKEN_RETRY);
+	}
+
 	/* Not indentation, not a linefeed on an empty line, must be not be start of line any more */
 	scanner.startOfLine = 0;