Reorganized a chunk of code in worker program of {Java, Python, C, C++} language versions, without changing behavior.

c/qrcodegen-worker.c

@@ -99,17 +99,16 @@ int main(void) {
 		free(data);
 		free(tempBuffer);
 		
+		if (ok) {
 			// Print grid of modules
-		if (!ok)
-			printf("-1\n");
-		else {
 			int size = qrcodegen_getSize(qrcode);
 			printf("%d\n", (size - 17) / 4);
 			for (int y = 0; y < size; y++) {
 				for (int x = 0; x < size; x++)
 					printf("%d\n", qrcodegen_getModule(qrcode, x, y) ? 1 : 0);
 			}
-		}
+		} else
+			printf("-1\n");
 		free(qrcode);
 		fflush(stdout);
 	}

cpp/QrCodeGeneratorWorker.cpp

@@ -83,11 +83,9 @@ int main() {
 		} else
 			segs.push_back(QrSegment::makeBytes(data));
 		
-		// Try to make QR Code symbol
+		try {  // Try to make QR Code symbol
-		try {
 			const QrCode qr = QrCode::encodeSegments(segs,
 				*ECC_LEVELS[errCorLvl], minVersion, maxVersion, mask, boostEcl == 1);
-			
 			// Print grid of modules
 			std::cout << qr.version << std::endl;
 			for (int y = 0; y < qr.size; y++) {
@@ -96,12 +94,11 @@ int main() {
 			}
 			
 		} catch (const char *msg) {
-			if (strcmp(msg, "Data too long") == 0)
+			if (strcmp(msg, "Data too long") != 0) {
-				std::cout << -1 << std::endl;
-			else {
 				std::cerr << msg << std::endl;
 				return EXIT_FAILURE;
 			}
+			std::cout << -1 << std::endl;
 		}
 		std::cout << std::flush;
 	}

java/io/nayuki/qrcodegen/QrCodeGeneratorWorker.java

@@ -77,25 +77,21 @@ public final class QrCodeGeneratorWorker {
 			else
 				segs = Arrays.asList(QrSegment.makeBytes(data));
 			
-			// Try to make QR Code symbol
-			QrCode qr;
-			try {
-				qr = QrCode.encodeSegments(segs, QrCode.Ecc.values()[errCorLvl], minVersion, maxVersion, mask, boostEcl != 0);
-			} catch (IllegalArgumentException e) {
-				if (e.getMessage().equals("Data too long")) {
-					System.out.println(-1);
-					System.out.flush();
-					continue;
-				} else
-					throw e;
-			}
 			
+			try {  // Try to make QR Code symbol
+				QrCode qr = QrCode.encodeSegments(segs, QrCode.Ecc.values()[errCorLvl], minVersion, maxVersion, mask, boostEcl != 0);
 				// Print grid of modules
 				System.out.println(qr.version);
 				for (int y = 0; y < qr.size; y++) {
 					for (int x = 0; x < qr.size; x++)
 						System.out.println(qr.getModule(x, y));
 				}
+				
+			} catch (IllegalArgumentException e) {
+				if (!e.getMessage().equals("Data too long"))
+					throw e;
+				System.out.println(-1);
+			}
 			System.out.flush();
 		}
 	}

python/qrcodegen-worker.py

@@ -60,22 +60,18 @@ def main():
 		else:
 			segs = [qrcodegen.QrSegment.make_bytes("".join(chr(b) for b in data))]
 		
-		# Try to make QR Code symbol
+		try:  # Try to make QR Code symbol
-		try:
 			qr = qrcodegen.QrCode.encode_segments(segs, ECC_LEVELS[errcorlvl], minversion, maxversion, mask, boostecl != 0)
-		except ValueError as e:
-			if e.args[0] == "Data too long":
-				print(-1)
-				sys.stdout.flush()
-				continue
-			else:
-				raise
-		
 			# Print grid of modules
 			print(qr.get_version())
 			for y in range(qr.get_size()):
 				for x in range(qr.get_size()):
 					print(qr.get_module(x, y))
+			
+		except ValueError as e:
+			if e.args[0] != "Data too long":
+				raise
+			print(-1)
 		sys.stdout.flush()