General refactor

Parser.java

@@ -13,30 +13,19 @@ public synchronized void setFile(File f) {
   public synchronized File getFile() {
     return file;
   }
+
   public String getContent() throws IOException {
-    FileInputStream i = new FileInputStream(file);
-    String output = "";
-    int data;
-    while ((data = i.read()) > 0) {
-      output += (char) data;
-    }
-    return output;
+    Scanner scanner = new Scanner(file);
+    String content = scanner.useDelimiter("\\A").next();
+    scanner.close();
+    return content;
   }
+
   public String getContentWithoutUnicode() throws IOException {
-    FileInputStream i = new FileInputStream(file);
-    String output = "";
-    int data;
-    while ((data = i.read()) > 0) {
-      if (data < 0x80) {
-        output += (char) data;
-      }
-    }
-    return output;
+    return getContent().replaceAll("[\\p{Cc}\\p{Cf}\\p{Co}\\p{Cn}]", "");
   }
+
   public void saveContent(String content) throws IOException {
-    FileOutputStream o = new FileOutputStream(file);
-    for (int i = 0; i < content.length(); i += 1) {
-      o.write(content.charAt(i));
-    }
+  	new PrintStream(new FileOutputStream(file)).print(content);
   }
-}
+}