Applesoft ugly line-wrapping option

src/com/bytezone/diskbrowser/applefile/ApplesoftBasicProgram.java

@@ -129,10 +129,15 @@ public class ApplesoftBasicProgram extends BasicProgram implements ApplesoftCons
       currentLine.append (String.format (" %d ", lineNumber));
       ptr += 4;
 
+      if (basicPreferences.appleLineWrap)
+        ptr = append (currentLine, ptr);
+      else
         while ((b = buffer[ptr++]) != 0)
           if (isHighBitSet (b))
-          currentLine
+          {
-              .append (String.format (" %s ", ApplesoftConstants.tokens[b & 0x7F]));
+            String token = String.format (" %s ", ApplesoftConstants.tokens[b & 0x7F]);
+            currentLine.append (token);
+          }
           else
             switch (b)
             {
@@ -165,16 +170,85 @@ public class ApplesoftBasicProgram extends BasicProgram implements ApplesoftCons
 
       currentLine.append (NEWLINE);
 
-      //      List<String> lines = wrap (text, 29);
-      //      fullText.append (String.format ("%d %s%n", lineNumber, lines.get (0)));
-      //      for (int i = 1; i < lines.size (); i++)
-      //        fullText.append (String.format ("    %s%n", lines.get (i)));
-
       fullText.append (currentLine);
       currentLine.setLength (0);
     }
   }
 
+  // ---------------------------------------------------------------------------------//
+  private int append (StringBuilder currentLine, int ptr)
+  // ---------------------------------------------------------------------------------//
+  {
+    byte b;
+    int left = 5;
+    int right = 33;
+
+    int cursor = currentLine.length ();
+
+    while ((b = buffer[ptr++]) != 0)
+      if (isHighBitSet (b))
+      {
+        String token = String.format (" %s ", ApplesoftConstants.tokens[b & 0x7F]);
+        currentLine.append (token);
+        cursor = increment (currentLine, cursor, token.length ());
+      }
+      else
+        switch (b)
+        {
+          case Utility.ASCII_CR:
+            currentLine.append (NEWLINE);
+            cursor = left;
+            break;
+
+          case Utility.ASCII_BACKSPACE:
+            if (currentLine.length () > 0)
+            {
+              currentLine.deleteCharAt (currentLine.length () - 1);
+              --cursor;
+            }
+            break;
+
+          case Utility.ASCII_LF:
+            int indent = getIndent (currentLine);
+            currentLine.append ("\n");
+            for (int i = 0; i < indent; i++)
+              currentLine.append (" ");
+            break;
+
+          default:
+            currentLine.append ((char) b);
+            cursor = increment (currentLine, cursor, 1);
+        }
+
+    return ptr;
+  }
+
+  // ---------------------------------------------------------------------------------//
+  private int increment (StringBuilder currentLine, int cursor, int size)
+  // ---------------------------------------------------------------------------------//
+  {
+    int left = 5;
+    int right = 33;
+
+    cursor += size;
+    if (cursor >= right)
+    {
+      if (cursor < 40)
+      {
+        cursor = left;
+        currentLine.append ("\n                  ".substring (0, left + 1));
+      }
+      else
+      // this is presumably a bug in the applesoft ROM
+      // see line 1610 in KEY-CAT on the UtilityCity.dsk
+      {
+        cursor = 0;
+        currentLine.append ("\n");
+      }
+    }
+    return cursor;
+  }
+
   // ---------------------------------------------------------------------------------//
   private void getUserFormat (StringBuilder fullText)
   // ---------------------------------------------------------------------------------//

src/com/bytezone/diskbrowser/gui/BasicPreferences.java

@@ -7,6 +7,7 @@ public class BasicPreferences
   public boolean showHeader = true;
   public boolean formatApplesoft = true;
   public boolean showAllXref = true;
+  public boolean appleLineWrap = false;
   public boolean splitRem = false;
   public boolean alignAssign = true;
   //  public boolean showTargets = true;
@@ -44,6 +45,7 @@ public class BasicPreferences
     text.append (String.format ("Show header .............. %s%n", showHeader));
     text.append (String.format ("Format applesoft ......... %s%n", formatApplesoft));
     text.append (String.format ("Show All Xref ............ %s%n", showAllXref));
+    text.append (String.format ("Apple line wrap .......... %s%n", appleLineWrap));
     text.append (String.format ("Show caret ............... %s%n", showCaret));
     text.append (String.format ("Show THEN ................ %s%n", showThen));
     text.append (String.format ("Show GOTO/GOSUB .......... %s%n", showXref));

src/com/bytezone/diskbrowser/gui/MenuHandler.java

@@ -48,6 +48,8 @@ class MenuHandler implements DiskSelectionListener, FileSelectionListener, QuitL
   private static final String PREFS_SHOW_ALL_FORMAT = "formatApplesoft";
   private static final String PREFS_SHOW_ALL_XREF = "showAllXref";
 
+  private static final String PREFS_APPLE_LINE_WRAP = "appleLineWrap";
+
   private static final String PREFS_SPLIT_REMARKS = "splitRemarks";
   private static final String PREFS_SPLIT_DIM = "splitDim";
   private static final String PREFS_ALIGN_ASSIGN = "alignAssign";
@@ -149,6 +151,8 @@ class MenuHandler implements DiskSelectionListener, FileSelectionListener, QuitL
   final JMenuItem showAllFormatItem = new JCheckBoxMenuItem ("Enable Format options");
   final JMenuItem showAllXrefItem = new JCheckBoxMenuItem ("Enable XREF options");
 
+  final JMenuItem appleLineWrapItem = new JCheckBoxMenuItem ("Apple line wrap");
+
   final JMenuItem splitRemarkItem = new JCheckBoxMenuItem ("Split remarks");
   final JMenuItem splitDimItem = new JCheckBoxMenuItem ("Split DIM");
   final JMenuItem alignAssignItem = new JCheckBoxMenuItem ("Align consecutive assign");
@@ -264,6 +268,8 @@ class MenuHandler implements DiskSelectionListener, FileSelectionListener, QuitL
     applesoftMenu.add (showAllFormatItem);
     applesoftMenu.add (showAllXrefItem);
     applesoftMenu.addSeparator ();
+    applesoftMenu.add (appleLineWrapItem);
+    applesoftMenu.addSeparator ();
     applesoftMenu.add (splitRemarkItem);
     applesoftMenu.add (splitDimItem);
     applesoftMenu.add (alignAssignItem);
@@ -343,6 +349,7 @@ class MenuHandler implements DiskSelectionListener, FileSelectionListener, QuitL
     showHeaderItem.addActionListener (basicPreferencesAction);
     showAllFormatItem.addActionListener (basicPreferencesAction);
     showAllXrefItem.addActionListener (basicPreferencesAction);
+    appleLineWrapItem.addActionListener (basicPreferencesAction);
     for (JMenuItem item : applesoftFormatItems)
       item.addActionListener (basicPreferencesAction);
     for (JMenuItem item : applesoftXrefItems)
@@ -395,6 +402,8 @@ class MenuHandler implements DiskSelectionListener, FileSelectionListener, QuitL
     basicPreferences.formatApplesoft = showAllFormatItem.isSelected ();
     basicPreferences.showAllXref = showAllXrefItem.isSelected ();
 
+    basicPreferences.appleLineWrap = appleLineWrapItem.isSelected ();
+
     basicPreferences.splitRem = splitRemarkItem.isSelected ();
     basicPreferences.splitDim = splitDimItem.isSelected ();
     basicPreferences.alignAssign = alignAssignItem.isSelected ();
@@ -420,6 +429,8 @@ class MenuHandler implements DiskSelectionListener, FileSelectionListener, QuitL
     for (JMenuItem item : applesoftFormatItems)
       item.setEnabled (basicPreferences.formatApplesoft);
 
+    appleLineWrapItem.setEnabled (!basicPreferences.formatApplesoft);
+
     for (JMenuItem item : applesoftXrefItems)
       item.setEnabled (basicPreferences.showAllXref);
   }
@@ -571,6 +582,8 @@ class MenuHandler implements DiskSelectionListener, FileSelectionListener, QuitL
     prefs.putBoolean (PREFS_SHOW_ALL_FORMAT, showAllFormatItem.isSelected ());
     prefs.putBoolean (PREFS_SHOW_ALL_XREF, showAllXrefItem.isSelected ());
 
+    prefs.putBoolean (PREFS_APPLE_LINE_WRAP, appleLineWrapItem.isSelected ());
+
     prefs.putBoolean (PREFS_SPLIT_REMARKS, splitRemarkItem.isSelected ());
     prefs.putBoolean (PREFS_SPLIT_DIM, splitDimItem.isSelected ());
     prefs.putBoolean (PREFS_ALIGN_ASSIGN, alignAssignItem.isSelected ());
@@ -633,6 +646,8 @@ class MenuHandler implements DiskSelectionListener, FileSelectionListener, QuitL
     showAllFormatItem.setSelected (prefs.getBoolean (PREFS_SHOW_ALL_FORMAT, true));
     showAllXrefItem.setSelected (prefs.getBoolean (PREFS_SHOW_ALL_XREF, true));
 
+    appleLineWrapItem.setSelected (prefs.getBoolean (PREFS_APPLE_LINE_WRAP, false));
+
     splitRemarkItem.setSelected (prefs.getBoolean (PREFS_SPLIT_REMARKS, false));
     splitDimItem.setSelected (prefs.getBoolean (PREFS_SPLIT_DIM, false));
     alignAssignItem.setSelected (prefs.getBoolean (PREFS_ALIGN_ASSIGN, true));