mirror of
https://github.com/dmolony/DiskBrowser.git
synced 2024-06-01 03:41:29 +00:00
1138 lines
39 KiB
Java
1138 lines
39 KiB
Java
package com.bytezone.diskbrowser.applefile;
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import static com.bytezone.diskbrowser.utilities.Utility.getIndent;
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import static com.bytezone.diskbrowser.utilities.Utility.isDigit;
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import static com.bytezone.diskbrowser.utilities.Utility.isHighBitSet;
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import static com.bytezone.diskbrowser.utilities.Utility.isLetter;
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import static com.bytezone.diskbrowser.utilities.Utility.isPossibleNumber;
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import static com.bytezone.diskbrowser.utilities.Utility.unsignedShort;
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import java.util.ArrayList;
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import java.util.List;
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import java.util.Map;
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import java.util.Stack;
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import java.util.TreeMap;
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import java.util.regex.Matcher;
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import java.util.regex.Pattern;
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import com.bytezone.diskbrowser.utilities.HexFormatter;
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import com.bytezone.diskbrowser.utilities.Utility;
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// -----------------------------------------------------------------------------------//
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public class ApplesoftBasicProgram extends BasicProgram implements ApplesoftConstants
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// -----------------------------------------------------------------------------------//
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{
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private static final String underline =
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"----------------------------------------------------"
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+ "----------------------------------------------";
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private static final Pattern dimPattern =
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Pattern.compile ("[A-Z][A-Z0-9]*[$%]?\\([0-9]+(,[0-9]+)*\\)[,:]?");
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private static final String NEWLINE = "\n";
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private static final int LEFT_MARGIN = 5;
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private static final int RIGHT_MARGIN = 33;
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private final List<SourceLine> sourceLines = new ArrayList<> ();
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private final int endPtr;
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private final int longestVarName;
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private final Map<Integer, List<Integer>> gotoLines = new TreeMap<> ();
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private final Map<Integer, List<Integer>> gosubLines = new TreeMap<> ();
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private final Map<Integer, List<Integer>> constantsInt = new TreeMap<> ();
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private final Map<Float, List<Integer>> constantsFloat = new TreeMap<> ();
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private final Map<String, List<Integer>> callLines = new TreeMap<> ();
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private final Map<String, List<Integer>> symbolLines = new TreeMap<> ();
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private final Map<String, List<Integer>> functionLines = new TreeMap<> ();
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private final Map<String, List<Integer>> arrayLines = new TreeMap<> ();
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private final Map<String, List<String>> uniqueSymbols = new TreeMap<> ();
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private final Map<String, List<String>> uniqueArrays = new TreeMap<> ();
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final List<Integer> stringsLine = new ArrayList<> ();
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final List<String> stringsText = new ArrayList<> ();
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private final String formatLeft;
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private final String formatLineNumber;
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private final String formatRight;
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final String formatCall;
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private final int maxDigits;
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// ---------------------------------------------------------------------------------//
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public ApplesoftBasicProgram (String name, byte[] buffer)
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// ---------------------------------------------------------------------------------//
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{
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super (name, buffer);
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int ptr = 0;
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while (buffer[ptr + 1] != 0) // msb of link field
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{
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SourceLine line = new SourceLine (this, buffer, ptr);
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sourceLines.add (line);
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checkXref (line);
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ptr += line.length; // assumes lines are contiguous
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}
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endPtr = ptr;
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longestVarName = getLongestName ();
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formatLeft = longestVarName > 7 ? "%-" + longestVarName + "." + longestVarName + "s "
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: "%-7.7s ";
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formatRight = formatLeft.replace ("-", "");
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formatCall = longestVarName > 7 ? "%-" + longestVarName + "s " : "%-7s ";
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maxDigits = getMaxDigits ();
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formatLineNumber = "%" + maxDigits + "d ";
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}
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// ---------------------------------------------------------------------------------//
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@Override
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public String getText ()
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// ---------------------------------------------------------------------------------//
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{
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StringBuilder text = new StringBuilder ();
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if (basicPreferences.showHeader)
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addHeader (text);
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if (showDebugText)
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return getDebugText (text);
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if (sourceLines.size () == 0)
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{
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text.append ("\n\nThis page intentionally left blank");
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return text.toString ();
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}
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if (basicPreferences.formatApplesoft)
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getUserFormat (text);
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else
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getAppleFormat (text);
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if (basicPreferences.showAllXref)
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addXref (text);
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return Utility.rtrim (text);
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}
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// ---------------------------------------------------------------------------------//
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private void getAppleFormat (StringBuilder fullText)
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// ---------------------------------------------------------------------------------//
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{
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int loadAddress = getLoadAddress ();
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int ptr = 0;
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int linkField;
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StringBuilder currentLine = new StringBuilder ();
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while ((linkField = unsignedShort (buffer, ptr)) != 0)
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{
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int lineNumber = unsignedShort (buffer, ptr + 2);
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currentLine.append (String.format (" %d ", lineNumber));
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ptr += 4;
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if (basicPreferences.appleLineWrap)
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ptr = appendWithWrap (currentLine, ptr);
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else
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ptr = appendWithOutWrap (currentLine, ptr);
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if (ptr != (linkField - loadAddress))
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{
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System.out.printf ("%s: ptr: %04X, nextLine: %04X%n", name, ptr + loadAddress,
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linkField);
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// ptr = linkField - loadAddress; // use this when tested
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}
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currentLine.append (NEWLINE);
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fullText.append (currentLine);
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currentLine.setLength (0);
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}
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}
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// ---------------------------------------------------------------------------------//
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private int appendWithOutWrap (StringBuilder currentLine, int ptr)
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// ---------------------------------------------------------------------------------//
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{
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byte b;
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while ((b = buffer[ptr++]) != 0)
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if (isHighBitSet (b))
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{
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String token = String.format (" %s ", ApplesoftConstants.tokens[b & 0x7F]);
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currentLine.append (token);
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}
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else
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switch (b)
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{
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case Utility.ASCII_CR:
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currentLine.append (NEWLINE);
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break;
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case Utility.ASCII_BACKSPACE:
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if (currentLine.length () > 0)
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currentLine.deleteCharAt (currentLine.length () - 1);
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break;
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case Utility.ASCII_LF:
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int indent = getIndent (currentLine);
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currentLine.append ("\n");
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for (int i = 0; i < indent; i++)
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currentLine.append (" ");
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break;
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default:
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currentLine.append ((char) b);
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}
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return ptr;
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}
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// ---------------------------------------------------------------------------------//
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private int appendWithWrap (StringBuilder currentLine, int ptr)
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// ---------------------------------------------------------------------------------//
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{
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byte b;
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int cursor = currentLine.length (); // controls when to wrap
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while ((b = buffer[ptr++]) != 0)
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if (isHighBitSet (b))
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{
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String token = String.format (" %s ", ApplesoftConstants.tokens[b & 0x7F]);
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currentLine.append (token);
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cursor = incrementCursor (currentLine, cursor, token.length ());
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}
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else
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switch (b)
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{
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case Utility.ASCII_CR:
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currentLine.append (NEWLINE);
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cursor = 0;
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break;
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case Utility.ASCII_BACKSPACE:
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if (cursor > 0)
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{
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currentLine.deleteCharAt (currentLine.length () - 1);
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--cursor;
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}
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break;
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case Utility.ASCII_LF:
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currentLine.append ("\n");
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for (int i = 0; i < cursor; i++)
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currentLine.append (" ");
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break;
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default:
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currentLine.append ((char) b);
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cursor = incrementCursor (currentLine, cursor, 1);
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}
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return ptr;
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}
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// ---------------------------------------------------------------------------------//
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private int incrementCursor (StringBuilder currentLine, int cursor, int size)
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// ---------------------------------------------------------------------------------//
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{
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assert size <= 9; // longest token possible (7 plus 2 spaces)
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cursor += size;
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if ((cursor) >= RIGHT_MARGIN)
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{
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if (cursor >= 40) // already wrapped
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cursor -= 40;
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else
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cursor = LEFT_MARGIN;
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currentLine.append ("\n ".substring (0, cursor + 1));
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}
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return cursor;
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}
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// ---------------------------------------------------------------------------------//
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private void getUserFormat (StringBuilder fullText)
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// ---------------------------------------------------------------------------------//
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{
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int indentSize = 2;
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boolean insertBlankLine = false;
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Stack<String> loopVariables = new Stack<> ();
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int alignEqualsPos = 0;
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int baseOffset = 7; // 5 digit line number + 2 spaces
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for (SourceLine line : sourceLines)
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{
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StringBuilder text = new StringBuilder (String.format ("%5d", (line.lineNumber)));
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int indent = loopVariables.size (); // each full line starts at the loop indent
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int ifIndent = 0; // IF statement(s) limit back indentation by NEXT
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for (SubLine subline : line.sublines)
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{
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// Allow empty statements (caused by a single colon)
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if (subline.isEmpty ())
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continue;
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// A REM statement might conceal an assembler routine
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// - see P.CREATE on Diags2E.DSK
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if (subline.is (TOKEN_REM) && subline.containsToken ())
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{
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int address = getLoadAddress () + subline.startPtr + 1; // skip the REM token
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fullText.append (text + String.format ("REM - Inline assembler @ $%02X (%d)%n",
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address, address));
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String padding = " ".substring (0, text.length () + 2);
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for (String asm : getRemAssembler (subline))
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fullText.append (padding + asm + NEWLINE);
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continue;
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}
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// Beagle Bros often have multiline REM statements
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if (subline.is (TOKEN_REM) && basicPreferences.formatRem
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&& subline.containsControlChars ())
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{
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subline.addFormattedRem (text);
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fullText.append (text + NEWLINE);
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continue;
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}
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// Reduce the indent by each NEXT, but only as far as the IF indent allows
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if (subline.is (TOKEN_NEXT))
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{
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popLoopVariables (loopVariables, subline);
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indent = Math.max (ifIndent, loopVariables.size ());
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}
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// Are we joining REM lines with the previous subline?
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if (!basicPreferences.splitRem && subline.isJoinableRem ())
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{
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// Join this REM statement to the previous line, so no indenting
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fullText.deleteCharAt (fullText.length () - 1); // remove newline
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fullText.append (" ");
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}
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else // ... otherwise do all the indenting
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{
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// Align assign statements if required
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if (basicPreferences.alignAssign)
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alignEqualsPos = alignEqualsPosition (subline, alignEqualsPos);
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int column = indent * indentSize + baseOffset;
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while (text.length () < column)
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text.append (" ");
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}
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// Add the current text, then reset it
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String lineText = subline.getAlignedText (alignEqualsPos);
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if (subline.is (TOKEN_DATA) && basicPreferences.deleteExtraDataSpace)
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lineText = lineText.replaceFirst ("DATA ", "DATA ");
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// Check for a wrappable REM/DATA/DIM statement
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// (see SEA BATTLE on DISK283.DSK)
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int inset = Math.max (text.length (), getIndent (fullText)) + 1;
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if (subline.is (TOKEN_REM) && lineText.length () > basicPreferences.wrapRemAt)
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{
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List<String> lines = splitLine (lineText, basicPreferences.wrapRemAt, ' ');
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addSplitLines (lines, text, inset);
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}
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else if (subline.is (TOKEN_DATA)
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&& lineText.length () > basicPreferences.wrapDataAt)
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{
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List<String> lines = splitLine (lineText, basicPreferences.wrapDataAt, ',');
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addSplitLines (lines, text, inset);
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}
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else if (subline.is (TOKEN_DIM) && basicPreferences.splitDim)
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{
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List<String> lines = splitDim (lineText);
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addSplitLines (lines, text, inset);
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}
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else
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text.append (lineText);
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// Check for a wrappable PRINT or INPUT statement
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// (see FROM MACHINE LANGUAGE TO BASIC on DOSToolkit2eB.dsk)
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if (basicPreferences.wrapPrintAt > 0 // not currently used
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&& (subline.is (TOKEN_PRINT) || subline.is (TOKEN_INPUT))
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&& countChars (text, Utility.ASCII_QUOTE) == 2 // just start and end quotes
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&& countChars (text, Utility.ASCII_CARET) == 0) // no control characters
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wrapPrint (fullText, text, lineText);
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else
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fullText.append (text + NEWLINE);
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text.setLength (0);
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// Calculate indent changes that take effect after the current subline
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if (subline.is (TOKEN_IF))
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ifIndent = ++indent;
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else if (subline.is (TOKEN_FOR))
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{
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String latestLoopVar = loopVariables.size () > 0 ? loopVariables.peek () : "";
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if (!subline.forVariable.equals (latestLoopVar)) // don't add repeated loop
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{
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loopVariables.push (subline.forVariable);
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++indent;
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}
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}
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else if (basicPreferences.blankAfterReturn && subline.is (TOKEN_RETURN)
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&& subline.isFirst ())
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insertBlankLine = true;
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}
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if (insertBlankLine)
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{
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fullText.append (NEWLINE);
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insertBlankLine = false;
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}
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// Reset alignment value if we just left an IF
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// - the indentation will be different now
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if (ifIndent > 0)
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alignEqualsPos = 0;
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}
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}
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// ---------------------------------------------------------------------------------//
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private void addXref (StringBuilder fullText)
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// ---------------------------------------------------------------------------------//
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{
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if (basicPreferences.showSymbols)
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{
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if (!symbolLines.isEmpty ())
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showSymbolsLeft (fullText, symbolLines, "Var");
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if (!arrayLines.isEmpty ())
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showSymbolsLeft (fullText, arrayLines, "Array");
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}
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if (basicPreferences.showDuplicateSymbols)
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{
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if (!uniqueSymbols.isEmpty ())
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showDuplicates (fullText, uniqueSymbols, "Var");
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if (!uniqueArrays.isEmpty ())
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showDuplicates (fullText, uniqueArrays, "Array");
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}
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if (basicPreferences.showFunctions && !functionLines.isEmpty ())
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showSymbolsLeft (fullText, functionLines, "Fnction");
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if (basicPreferences.showConstants)
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{
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if (!constantsInt.isEmpty ())
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showSymbolsRightInt (fullText, constantsInt, "Integer");
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if (!constantsFloat.isEmpty ())
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showSymbolsRightFloat (fullText, constantsFloat, "Float");
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if (stringsLine.size () > 0)
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{
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heading (fullText, formatRight, "Line", "String");
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for (int i = 0; i < stringsLine.size (); i++)
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fullText.append (String.format (formatRight + "%s%n", stringsLine.get (i),
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stringsText.get (i)));
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}
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}
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if (basicPreferences.showXref)
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{
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if (!gosubLines.isEmpty ())
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showSymbolsRight (fullText, gosubLines, "GOSUB");
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if (!gotoLines.isEmpty ())
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showSymbolsRight (fullText, gotoLines, "GOTO");
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}
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if (basicPreferences.showCalls && !callLines.isEmpty ())
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showSymbolsLeftRight (fullText, callLines, " CALL");
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}
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// ---------------------------------------------------------------------------------//
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private int getMaxDigits ()
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// ---------------------------------------------------------------------------------//
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{
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if (sourceLines.size () == 0)
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return 4; // anything non-zero
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SourceLine lastLine = sourceLines.get (sourceLines.size () - 1);
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return (lastLine.lineNumber + "").length ();
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}
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// ---------------------------------------------------------------------------------//
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private void heading (StringBuilder fullText, String format, String... heading)
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// ---------------------------------------------------------------------------------//
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{
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if (fullText.charAt (fullText.length () - 2) != '\n')
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fullText.append (NEWLINE);
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fullText.append (String.format (format, underline));
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fullText.append (underline);
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fullText.append (NEWLINE);
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fullText.append (String.format (format, heading[0]));
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if (heading.length == 1)
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fullText.append ("Line numbers");
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else
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fullText.append (heading[1]);
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fullText.append (NEWLINE);
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fullText.append (String.format (format, underline));
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fullText.append (underline);
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fullText.append (NEWLINE);
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}
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// ---------------------------------------------------------------------------------//
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private void showDuplicates (StringBuilder fullText, Map<String, List<String>> map,
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String heading)
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// ---------------------------------------------------------------------------------//
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{
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boolean headingShown = false;
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for (String key : map.keySet ())
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{
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List<String> usage = map.get (key);
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if (usage.size () > 1)
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{
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if (!headingShown)
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{
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headingShown = true;
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heading (fullText, formatLeft, heading, "Duplicate Names");
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}
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String line = usage.toString ();
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line = line.substring (1, line.length () - 1);
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fullText.append (String.format ("%-6s %s%n", key, line));
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}
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}
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}
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// ---------------------------------------------------------------------------------//
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private void showSymbolsLeft (StringBuilder fullText, Map<String, List<Integer>> map,
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String heading)
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// ---------------------------------------------------------------------------------//
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{
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heading (fullText, formatLeft, heading);
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for (String symbol : map.keySet ()) // left-justify strings
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{
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if (symbol.length () <= 7)
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appendLineNumbers (fullText, String.format (formatLeft, symbol),
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map.get (symbol));
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else
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appendLineNumbers (fullText, symbol + " ", map.get (symbol));
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}
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}
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// ---------------------------------------------------------------------------------//
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private void showSymbolsLeftRight (StringBuilder fullText,
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Map<String, List<Integer>> map, String heading)
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// ---------------------------------------------------------------------------------//
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{
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heading (fullText, formatLeft, heading);
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for (String symbol : map.keySet ()) // left-justify strings
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{
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if (isNumeric (symbol))
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appendLineNumbers (fullText, String.format (formatRight, symbol),
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map.get (symbol));
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else if (symbol.length () <= 7)
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appendLineNumbers (fullText, String.format (formatLeft, symbol),
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map.get (symbol));
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else
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appendLineNumbers (fullText, symbol + " ", map.get (symbol));
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}
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}
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// ---------------------------------------------------------------------------------//
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|
private boolean isNumeric (String value)
|
|
// ---------------------------------------------------------------------------------//
|
|
{
|
|
byte[] bytes = value.getBytes ();
|
|
int start = value.charAt (0) == Utility.ASCII_MINUS ? 1 : 0;
|
|
for (int i = start; i < bytes.length; i++)
|
|
if (!isPossibleNumber (bytes[i]))
|
|
return false;
|
|
return true;
|
|
}
|
|
|
|
// ---------------------------------------------------------------------------------//
|
|
private void showSymbolsRight (StringBuilder fullText, Map<Integer, List<Integer>> map,
|
|
String heading)
|
|
// ---------------------------------------------------------------------------------//
|
|
{
|
|
heading (fullText, formatRight, heading);
|
|
|
|
for (Integer symbol : map.keySet ()) // right-justify integers
|
|
appendLineNumbers (fullText, String.format (formatRight, symbol), map.get (symbol));
|
|
}
|
|
|
|
// ---------------------------------------------------------------------------------//
|
|
private void showSymbolsRightInt (StringBuilder fullText,
|
|
Map<Integer, List<Integer>> map, String heading)
|
|
// ---------------------------------------------------------------------------------//
|
|
{
|
|
heading (fullText, formatRight, heading);
|
|
|
|
for (int symbol : map.keySet ()) // right-justify integers
|
|
appendLineNumbers (fullText, String.format (formatRight, symbol), map.get (symbol));
|
|
}
|
|
|
|
// ---------------------------------------------------------------------------------//
|
|
private void showSymbolsRightFloat (StringBuilder fullText,
|
|
Map<Float, List<Integer>> map, String heading)
|
|
// ---------------------------------------------------------------------------------//
|
|
{
|
|
heading (fullText, formatRight, heading);
|
|
|
|
for (float symbol : map.keySet ()) // right-justify integers
|
|
appendLineNumbers (fullText, String.format (formatRight, symbol), map.get (symbol));
|
|
}
|
|
|
|
// ---------------------------------------------------------------------------------//
|
|
private void appendLineNumbers (StringBuilder fullText, String symbol,
|
|
List<Integer> lineNumbers)
|
|
// ---------------------------------------------------------------------------------//
|
|
{
|
|
StringBuilder text = new StringBuilder ();
|
|
text.append (symbol);
|
|
|
|
for (int lineNo : lineNumbers)
|
|
{
|
|
if (text.length () > underline.length () - maxDigits + longestVarName)
|
|
{
|
|
fullText.append (text);
|
|
fullText.append (NEWLINE);
|
|
text.setLength (0);
|
|
text.append (String.format (formatRight, ""));
|
|
}
|
|
text.append (String.format (formatLineNumber, lineNo));
|
|
}
|
|
|
|
if (text.length () > longestVarName + 3)
|
|
fullText.append (text + "\n");
|
|
}
|
|
|
|
// ---------------------------------------------------------------------------------//
|
|
private int getLongestName ()
|
|
// ---------------------------------------------------------------------------------//
|
|
{
|
|
int longestName = 0;
|
|
|
|
longestName = getLongestName (symbolLines, longestName);
|
|
longestName = getLongestName (arrayLines, longestName);
|
|
longestName = getLongestName (functionLines, longestName);
|
|
|
|
return longestName;
|
|
}
|
|
|
|
// ---------------------------------------------------------------------------------//
|
|
private int getLongestName (Map<String, List<Integer>> map, int longestName)
|
|
// ---------------------------------------------------------------------------------//
|
|
{
|
|
for (String symbol : map.keySet ())
|
|
if (symbol.length () > longestName)
|
|
longestName = symbol.length ();
|
|
|
|
return longestName;
|
|
}
|
|
|
|
// ---------------------------------------------------------------------------------//
|
|
private void wrapPrint (StringBuilder fullText, StringBuilder text, String lineText)
|
|
// ---------------------------------------------------------------------------------//
|
|
{
|
|
List<String> lines = splitPrint (lineText);
|
|
if (lines != null)
|
|
{
|
|
int offset = text.indexOf ("PRINT");
|
|
if (offset < 0)
|
|
offset = text.indexOf ("INPUT");
|
|
String fmt = "%-" + offset + "." + offset + "s%s%n";
|
|
String padding = text.substring (0, offset);
|
|
for (String s : lines)
|
|
{
|
|
fullText.append (String.format (fmt, padding, s));
|
|
padding = "";
|
|
}
|
|
}
|
|
else
|
|
fullText.append (text + "\n");
|
|
}
|
|
|
|
// ---------------------------------------------------------------------------------//
|
|
private List<String> splitPrint (String line)
|
|
// ---------------------------------------------------------------------------------//
|
|
{
|
|
int first = line.indexOf ("\"") + 1;
|
|
int last = line.indexOf ("\"", first + 1) - 1;
|
|
|
|
if (first != 7 || (last - first) <= basicPreferences.wrapPrintAt)
|
|
return null;
|
|
|
|
int charsLeft = last - first + 1;
|
|
|
|
List<String> lines = new ArrayList<> ();
|
|
String padding = line.substring (0, 7);
|
|
line = line.substring (7);
|
|
String sub;
|
|
while (true)
|
|
{
|
|
if (line.length () >= basicPreferences.wrapPrintAt)
|
|
{
|
|
sub = line.substring (0, basicPreferences.wrapPrintAt);
|
|
line = line.substring (basicPreferences.wrapPrintAt);
|
|
}
|
|
else
|
|
{
|
|
sub = line;
|
|
line = "";
|
|
}
|
|
|
|
String subline = padding + sub;
|
|
charsLeft -= basicPreferences.wrapPrintAt;
|
|
|
|
if (charsLeft > 0)
|
|
lines.add (subline);
|
|
else
|
|
{
|
|
lines.add (subline + line);
|
|
break;
|
|
}
|
|
padding = " ";
|
|
}
|
|
|
|
return lines;
|
|
}
|
|
|
|
// ---------------------------------------------------------------------------------//
|
|
private List<String> splitLine (String line, int wrapLength, char breakChar)
|
|
// ---------------------------------------------------------------------------------//
|
|
{
|
|
int spaceAt = 0;
|
|
while (spaceAt < line.length () && line.charAt (spaceAt) != ' ')
|
|
++spaceAt;
|
|
String indent = spaceAt < 8 ? " ".substring (0, spaceAt + 1) : " ";
|
|
|
|
List<String> lines = new ArrayList<> ();
|
|
|
|
while (line.length () > wrapLength)
|
|
{
|
|
int breakAt = wrapLength - 1;
|
|
while (breakAt > spaceAt && line.charAt (breakAt) != breakChar)
|
|
--breakAt;
|
|
|
|
if (breakAt <= spaceAt)
|
|
break;
|
|
|
|
lines.add (line.substring (0, breakAt + 1)); // keep breakChar at end
|
|
line = indent + line.substring (breakAt + 1);
|
|
}
|
|
|
|
while (line.length () > wrapLength) // no breakChars found
|
|
{
|
|
lines.add (line.substring (0, wrapLength));
|
|
line = indent + line.substring (wrapLength);
|
|
}
|
|
|
|
lines.add (line);
|
|
return lines;
|
|
}
|
|
|
|
// ---------------------------------------------------------------------------------//
|
|
private List<String> splitDim (String line)
|
|
// ---------------------------------------------------------------------------------//
|
|
{
|
|
List<String> lines = new ArrayList<> ();
|
|
|
|
Matcher m = dimPattern.matcher (line);
|
|
|
|
while (m.find ())
|
|
lines.add (" " + m.group ());
|
|
|
|
if (lines.size () > 0)
|
|
lines.set (0, "DIM " + lines.get (0).trim ());
|
|
|
|
return lines;
|
|
}
|
|
|
|
// ---------------------------------------------------------------------------------//
|
|
private void addSplitLines (List<String> lines, StringBuilder text, int indent)
|
|
// ---------------------------------------------------------------------------------//
|
|
{
|
|
boolean first = true;
|
|
|
|
for (String line : lines)
|
|
{
|
|
if (first)
|
|
{
|
|
first = false;
|
|
text.append (line);
|
|
}
|
|
else
|
|
text.append (
|
|
"\n ".substring (0, indent) + line);
|
|
}
|
|
}
|
|
|
|
// ---------------------------------------------------------------------------------//
|
|
private int countChars (StringBuilder text, byte ch)
|
|
// ---------------------------------------------------------------------------------//
|
|
{
|
|
int total = 0;
|
|
for (int i = 0; i < text.length (); i++)
|
|
if (text.charAt (i) == ch)
|
|
total++;
|
|
return total;
|
|
}
|
|
|
|
// Decide whether the current subline needs to be aligned on its equals sign. If so,
|
|
// and the column hasn't been calculated, read ahead to find the highest position.
|
|
// ---------------------------------------------------------------------------------//
|
|
private int alignEqualsPosition (SubLine subline, int currentAlignPosition)
|
|
// ---------------------------------------------------------------------------------//
|
|
{
|
|
if (subline.equalsPosition > 0) // does the line have an equals sign?
|
|
{
|
|
if (currentAlignPosition == 0)
|
|
currentAlignPosition = findHighest (subline); // examine following sublines
|
|
return currentAlignPosition;
|
|
}
|
|
return 0; // reset it
|
|
}
|
|
|
|
// The IF processing is so that any assignment that is being aligned doesn't continue
|
|
// to the next full line (because the indentation has changed).
|
|
// ---------------------------------------------------------------------------------//
|
|
private int findHighest (SubLine startSubline)
|
|
// ---------------------------------------------------------------------------------//
|
|
{
|
|
boolean started = false;
|
|
int highestAssign = startSubline.equalsPosition;
|
|
|
|
fast: for (SourceLine line : sourceLines)
|
|
{
|
|
boolean inIf = false;
|
|
for (SubLine subline : line.sublines)
|
|
{
|
|
if (started)
|
|
{
|
|
// Stop when we come to a line without an equals sign (except for non-split REMs).
|
|
// Lines that start with a REM always break.
|
|
if (subline.equalsPosition == 0
|
|
// && (splitRem || !subline.is (TOKEN_REM) || subline.isFirst ()))
|
|
&& (basicPreferences.splitRem || !subline.isJoinableRem ()))
|
|
break fast; // of champions
|
|
|
|
if (subline.equalsPosition > highestAssign)
|
|
highestAssign = subline.equalsPosition;
|
|
}
|
|
else if (subline == startSubline)
|
|
started = true;
|
|
else if (subline.is (TOKEN_IF))
|
|
inIf = true;
|
|
}
|
|
if (started && inIf)
|
|
break;
|
|
}
|
|
return highestAssign;
|
|
}
|
|
|
|
// ---------------------------------------------------------------------------------//
|
|
private String getDebugText (StringBuilder text)
|
|
// ---------------------------------------------------------------------------------//
|
|
{
|
|
int linkField = unsignedShort (buffer, 0);
|
|
int programLoadAddress = linkField - getLineLength (0);
|
|
|
|
for (SourceLine sourceLine : sourceLines)
|
|
{
|
|
text.append (String.format ("%5d %s%n", sourceLine.lineNumber,
|
|
HexFormatter.formatNoHeader (buffer, sourceLine.linePtr, 4,
|
|
programLoadAddress + sourceLine.linePtr)));
|
|
for (SubLine subline : sourceLine.sublines)
|
|
{
|
|
String token = getDisplayToken (buffer[subline.startPtr]);
|
|
String formattedHex = HexFormatter.formatNoHeader (buffer, subline.startPtr,
|
|
subline.length, programLoadAddress + subline.startPtr);
|
|
|
|
for (String bytes : formattedHex.split (NEWLINE))
|
|
{
|
|
text.append (String.format (" %-8s %s%n", token, bytes));
|
|
token = "";
|
|
}
|
|
}
|
|
text.append (NEWLINE);
|
|
}
|
|
|
|
// check for assembler routines after the basic code
|
|
if (endPtr < buffer.length)
|
|
{
|
|
int length = buffer.length - endPtr;
|
|
int ptr = endPtr;
|
|
|
|
if (length >= 2)
|
|
{
|
|
text.append (" ");
|
|
text.append (
|
|
HexFormatter.formatNoHeader (buffer, endPtr, 2, programLoadAddress + ptr));
|
|
text.append ("\n\n");
|
|
ptr += 2;
|
|
length -= 2;
|
|
}
|
|
|
|
if (length > 0)
|
|
{
|
|
// show the extra bytes as a hex dump
|
|
String formattedHex = HexFormatter.formatNoHeader (buffer, ptr,
|
|
buffer.length - ptr, programLoadAddress + ptr);
|
|
for (String bytes : formattedHex.split (NEWLINE))
|
|
text.append (String.format (" %s%n", bytes));
|
|
|
|
// show the extra bytes as a disassembly
|
|
byte[] extraBuffer = new byte[length];
|
|
System.arraycopy (buffer, ptr, extraBuffer, 0, extraBuffer.length);
|
|
AssemblerProgram assemblerProgram =
|
|
new AssemblerProgram ("extra", extraBuffer, programLoadAddress + ptr);
|
|
text.append ("\n");
|
|
text.append (assemblerProgram.getText ());
|
|
}
|
|
}
|
|
|
|
return Utility.rtrim (text);
|
|
}
|
|
|
|
// ---------------------------------------------------------------------------------//
|
|
private String getDisplayToken (byte b)
|
|
// ---------------------------------------------------------------------------------//
|
|
{
|
|
if (isHighBitSet (b))
|
|
return ApplesoftConstants.tokens[b & 0x7F];
|
|
else if (isDigit (b) || isLetter (b))
|
|
return "";
|
|
return "*******";
|
|
}
|
|
|
|
// A REM statement might conceal an assembler routine
|
|
// ---------------------------------------------------------------------------------//
|
|
private String[] getRemAssembler (SubLine subline)
|
|
// ---------------------------------------------------------------------------------//
|
|
{
|
|
AssemblerProgram program = new AssemblerProgram ("REM assembler",
|
|
subline.getBuffer (), getLoadAddress () + subline.startPtr + 1);
|
|
|
|
return program.getAssembler ().split ("\n");
|
|
}
|
|
|
|
// ---------------------------------------------------------------------------------//
|
|
private void addHeader (StringBuilder pgm)
|
|
// ---------------------------------------------------------------------------------//
|
|
{
|
|
pgm.append ("Name : " + name + "\n");
|
|
pgm.append (String.format ("Length : $%04X (%<,d)%n", buffer.length));
|
|
pgm.append (String.format ("Load at : $%04X (%<,d)%n%n", getLoadAddress ()));
|
|
}
|
|
|
|
// ---------------------------------------------------------------------------------//
|
|
int getLoadAddress ()
|
|
// ---------------------------------------------------------------------------------//
|
|
{
|
|
return (buffer.length > 1) ? unsignedShort (buffer, 0) - getLineLength (0) : 0;
|
|
}
|
|
|
|
// ---------------------------------------------------------------------------------//
|
|
private int getLineLength (int ptr)
|
|
// ---------------------------------------------------------------------------------//
|
|
{
|
|
int linkField = unsignedShort (buffer, ptr);
|
|
if (linkField == 0)
|
|
return 2;
|
|
|
|
ptr += 4; // skip link field and line number
|
|
int length = 5;
|
|
|
|
while (ptr < buffer.length && buffer[ptr++] != 0)
|
|
length++;
|
|
|
|
// System.out.printf ("Length: %4d, Ptr: %4d%n", length, ptr);
|
|
assert length == ptr;
|
|
return length;
|
|
}
|
|
|
|
// ---------------------------------------------------------------------------------//
|
|
private void popLoopVariables (Stack<String> loopVariables, SubLine subline)
|
|
// ---------------------------------------------------------------------------------//
|
|
{
|
|
if (subline.nextVariables.length == 0) // naked NEXT
|
|
{
|
|
if (loopVariables.size () > 0)
|
|
loopVariables.pop ();
|
|
}
|
|
else
|
|
for (String variable : subline.nextVariables) // e.g. NEXT X,Y,Z
|
|
while (loopVariables.size () > 0)
|
|
if (sameVariable (variable, loopVariables.pop ()))
|
|
break;
|
|
}
|
|
|
|
// ---------------------------------------------------------------------------------//
|
|
private boolean sameVariable (String v1, String v2)
|
|
// ---------------------------------------------------------------------------------//
|
|
{
|
|
return getUniqueName (v1).equals (getUniqueName (v2));
|
|
}
|
|
|
|
// ---------------------------------------------------------------------------------//
|
|
private void checkUniqueName (String symbol, Map<String, List<String>> map)
|
|
// ---------------------------------------------------------------------------------//
|
|
{
|
|
String uniqueName = getUniqueName (symbol);
|
|
|
|
List<String> usage = map.get (uniqueName);
|
|
if (usage == null)
|
|
{
|
|
usage = new ArrayList<> ();
|
|
map.put (uniqueName, usage);
|
|
}
|
|
|
|
if (!usage.contains (symbol))
|
|
usage.add (symbol);
|
|
}
|
|
|
|
// ---------------------------------------------------------------------------------//
|
|
private String getUniqueName (String symbol)
|
|
// ---------------------------------------------------------------------------------//
|
|
{
|
|
int ptr = symbol.length () - 1;
|
|
|
|
if (symbol.charAt (ptr) == Utility.ASCII_DOLLAR // string
|
|
|| symbol.charAt (ptr) == Utility.ASCII_PERCENT) // integer
|
|
ptr--;
|
|
|
|
return (ptr <= 1) ? symbol : symbol.substring (0, 2) + symbol.substring (ptr + 1);
|
|
}
|
|
|
|
// ---------------------------------------------------------------------------------//
|
|
private void checkXref (SourceLine line)
|
|
// ---------------------------------------------------------------------------------//
|
|
{
|
|
for (SubLine subline : line.sublines)
|
|
{
|
|
for (String symbol : subline.getVariables ())
|
|
checkVar (symbol, line.lineNumber, symbolLines, uniqueSymbols);
|
|
for (String symbol : subline.getArrays ())
|
|
checkVar (symbol, line.lineNumber, arrayLines, uniqueArrays);
|
|
for (String symbol : subline.getFunctions ())
|
|
checkFunction (line.lineNumber, symbol);
|
|
for (int targetLine : subline.getGosubLines ())
|
|
addNumberInt (line.lineNumber, targetLine, gosubLines);
|
|
for (int targetLine : subline.getGotoLines ())
|
|
addNumberInt (line.lineNumber, targetLine, gotoLines);
|
|
for (int num : subline.getConstantsInt ())
|
|
addNumberInt (line.lineNumber, num, constantsInt);
|
|
for (float num : subline.getConstantsFloat ())
|
|
addNumberFloat (line.lineNumber, num, constantsFloat);
|
|
if (subline.callTarget != null)
|
|
addString (line.lineNumber, subline.callTarget, callLines);
|
|
for (String s : subline.getStringsText ())
|
|
{
|
|
stringsText.add (s);
|
|
stringsLine.add (line.lineNumber);
|
|
}
|
|
}
|
|
}
|
|
|
|
// ---------------------------------------------------------------------------------//
|
|
void checkVar (String var, int lineNumber, Map<String, List<Integer>> map,
|
|
Map<String, List<String>> unique)
|
|
// ---------------------------------------------------------------------------------//
|
|
{
|
|
List<Integer> lines = map.get (var);
|
|
if (lines == null)
|
|
{
|
|
lines = new ArrayList<> ();
|
|
map.put (var, lines);
|
|
}
|
|
|
|
if (lines.size () == 0)
|
|
lines.add (lineNumber);
|
|
else
|
|
{
|
|
int lastLine = lines.get (lines.size () - 1);
|
|
if (lastLine != lineNumber)
|
|
lines.add (lineNumber);
|
|
}
|
|
|
|
checkUniqueName (var, unique);
|
|
}
|
|
|
|
// ---------------------------------------------------------------------------------//
|
|
void checkFunction (int sourceLine, String var)
|
|
// ---------------------------------------------------------------------------------//
|
|
{
|
|
List<Integer> lines = functionLines.get (var);
|
|
if (lines == null)
|
|
{
|
|
lines = new ArrayList<> ();
|
|
functionLines.put (var, lines);
|
|
}
|
|
|
|
addLine (lines, sourceLine);
|
|
}
|
|
|
|
// ---------------------------------------------------------------------------------//
|
|
private void addNumberInt (int sourceLine, Integer key, Map<Integer, List<Integer>> map)
|
|
// ---------------------------------------------------------------------------------//
|
|
{
|
|
List<Integer> lines = map.get (key);
|
|
if (lines == null)
|
|
{
|
|
lines = new ArrayList<> ();
|
|
map.put (key, lines);
|
|
}
|
|
|
|
addLine (lines, sourceLine);
|
|
}
|
|
|
|
// ---------------------------------------------------------------------------------//
|
|
private void addNumberFloat (int sourceLine, Float key, Map<Float, List<Integer>> map)
|
|
// ---------------------------------------------------------------------------------//
|
|
{
|
|
List<Integer> lines = map.get (key);
|
|
if (lines == null)
|
|
{
|
|
lines = new ArrayList<> ();
|
|
map.put (key, lines);
|
|
}
|
|
|
|
addLine (lines, sourceLine);
|
|
}
|
|
|
|
// ---------------------------------------------------------------------------------//
|
|
private void addString (int sourceLine, String key, Map<String, List<Integer>> map)
|
|
// ---------------------------------------------------------------------------------//
|
|
{
|
|
List<Integer> lines = map.get (key);
|
|
if (lines == null)
|
|
{
|
|
lines = new ArrayList<> ();
|
|
map.put (key, lines);
|
|
}
|
|
|
|
addLine (lines, sourceLine);
|
|
}
|
|
|
|
// ---------------------------------------------------------------------------------//
|
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private void addLine (List<Integer> lines, int lineNumber)
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// ---------------------------------------------------------------------------------//
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{
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if (lines.size () == 0)
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lines.add (lineNumber);
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else
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{
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int lastLine = lines.get (lines.size () - 1);
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if (lastLine != lineNumber)
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lines.add (lineNumber);
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}
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}
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} |