BUG: system.out into log.debug

spsassembler/src/main/java/de/mcs/tools/sps/SPSAssembler.java

@@ -39,6 +39,7 @@ import java.util.Map.Entry;
 import java.util.Set;
 
 import org.apache.commons.lang3.StringUtils;
+import org.apache.log4j.Logger;
 import org.reflections.Reflections;
 import org.reflections.util.ClasspathHelper;
 import org.reflections.util.ConfigurationBuilder;
@@ -92,6 +93,7 @@ public class SPSAssembler {
   private Macro actualMacro;
   private Map<String, Macro> macros;
   private List<Integer> lineNumbers;
+  private Logger log = Logger.getLogger(this.getClass());
 
   @SwitchOption(shortKey = 'h', longKey = "help", name = "help", help = "show this help page", required = false, defaultValue = false)
   public static void doHelp(boolean value) {
@@ -297,14 +299,14 @@ public class SPSAssembler {
   }
 
   public void doWork(File source) throws IOException, SyntaxError {
-    System.out.printf("start parsing file: %s\r\n", source.getName());
+    log.debug(String.format("start parsing file: %s\r\n", source.getName()));
 
     List<String> sourceFile = Files.readAllLines(source.toPath(), Charset.forName("UTF-8"));
     doCompile(sourceFile);
   }
 
   public void doWork(String source) throws IOException, SyntaxError {
-    System.out.printf("start parsing source string: %s\r\n", source);
+    log.debug(String.format("start parsing source string: %s\r\n", source));
 
     List<String> sourceFile = new ArrayList<>();
     source.lines().forEach(l -> sourceFile.add(l));
@@ -576,14 +578,14 @@ public class SPSAssembler {
     if (!includeFile.exists()) {
       throw new IllegalArgument(srcLineNumber, String.format("include file not found: %s", includeFile.getName()));
     }
-    System.out.println("=====");
-    System.out.printf("include file: %s \r\n", includeFile.getName());
+    log.debug("=====");
+    log.debug(String.format("include file: %s \r\n", includeFile.getName()));
     SPSAssembler spsAssembler = new SPSAssembler();
     spsAssembler.doWork(includeFile);
     outputMnemonics(spsAssembler.getMnemonics());
     outputLabels(spsAssembler);
     outputMacros(spsAssembler);
-    System.out.println("=====");
+    log.debug("=====");
   }
 
   private Mnemonic getMnemonic(String line, int srcLineNumber) throws SyntaxError {