959 lines
33 KiB
Java
959 lines
33 KiB
Java
package com.bytezone.diskbrowser.applefile;
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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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static final String underline = "----------------------------------------------------"
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+ "----------------------------------------------";
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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>> constants = 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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String formatLeft;
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String formatLineNumber;
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String formatRight;
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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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int currentAddress = 0;
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int max = buffer.length - 6; // need at least 6 bytes to make a SourceLine
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while (ptr <= max)
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{
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int nextAddress = Utility.unsignedShort (buffer, ptr);
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if (nextAddress <= currentAddress) // usually zero when finished
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break;
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SourceLine line = new SourceLine (this, buffer, ptr);
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sourceLines.add (line);
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ptr += line.length;
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currentAddress = nextAddress;
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for (SubLine subline : line.sublines)
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{
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for (String symbol : subline.getSymbols ())
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checkVar (symbol, line.lineNumber, symbolLines, uniqueSymbols);
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for (String symbol : subline.getArrays ())
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checkVar (symbol, line.lineNumber, arrayLines, uniqueArrays);
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for (String symbol : subline.getFunctions ())
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checkFunction (symbol, line.lineNumber);
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for (int targetLine : subline.getGosubLines ())
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addXref (line.lineNumber, targetLine, gosubLines);
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for (int targetLine : subline.getGotoLines ())
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addXref (line.lineNumber, targetLine, gotoLines);
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for (int targetLine : subline.getConstants ())
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addXref (line.lineNumber, targetLine, constants);
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if (subline.callTarget != null)
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addXref (line.lineNumber, subline.callTarget, callLines);
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}
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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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maxDigits = getMaxDigits ();
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formatLineNumber = "%" + maxDigits + "d ";
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}
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// ---------------------------------------------------------------------------------//
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void checkVar (String var, int lineNumber, Map<String, List<Integer>> map,
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Map<String, List<String>> unique)
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// ---------------------------------------------------------------------------------//
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{
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List<Integer> lines = map.get (var);
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if (lines == null)
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{
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lines = new ArrayList<> ();
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map.put (var, lines);
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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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checkUniqueName (var, unique);
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}
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// ---------------------------------------------------------------------------------//
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void checkFunction (String var, int lineNumber)
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// ---------------------------------------------------------------------------------//
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{
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List<Integer> lines = functionLines.get (var);
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if (lines == null)
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{
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lines = new ArrayList<> ();
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functionLines.put (var, lines);
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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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// ---------------------------------------------------------------------------------//
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private void addXref (int sourceLine, int targetLine, Map<Integer, List<Integer>> map)
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// ---------------------------------------------------------------------------------//
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{
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List<Integer> lines = map.get (targetLine);
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if (lines == null)
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{
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lines = new ArrayList<> ();
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map.put (targetLine, lines);
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}
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lines.add (sourceLine);
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}
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// ---------------------------------------------------------------------------------//
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private void addXref (int sourceLine, String target, Map<String, List<Integer>> map)
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// ---------------------------------------------------------------------------------//
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{
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List<Integer> lines = map.get (target);
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if (lines == null)
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{
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lines = new ArrayList<> ();
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map.put (target, lines);
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}
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lines.add (sourceLine);
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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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return showDebugText ? getHexText () : getProgramText ();
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}
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// ---------------------------------------------------------------------------------//
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private String getProgramText ()
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// ---------------------------------------------------------------------------------//
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{
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if (!basicPreferences.formatApplesoft)
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return originalFormat ();
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int indentSize = 2;
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boolean insertBlankLine = false;
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StringBuilder fullText = new StringBuilder ();
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Stack<String> loopVariables = new Stack<> ();
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if (basicPreferences.showHeader)
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addHeader (fullText);
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int alignEqualsPos = 0;
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StringBuilder text;
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int baseOffset = basicPreferences.showTargets ? 12 : 8;
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for (SourceLine line : sourceLines)
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{
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text = new StringBuilder (getBase (line) + " ");
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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 + "\n");
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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) && subline.containsControlChars ())
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{
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subline.addFormattedRem (text);
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fullText.append (text + "\n");
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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 and showing of targets etc.
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{
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// Prepare target indicators for subsequent sublines (ie no line number)
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if (basicPreferences.showTargets && !subline.isFirst ())
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if (subline.is (TOKEN_GOSUB)
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|| (subline.is (TOKEN_ON) && subline.has (TOKEN_GOSUB)))
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text.append ("<<--");
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else if (subline.is (TOKEN_GOTO) || subline.isImpliedGoto ()
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|| (subline.is (TOKEN_ON) && subline.has (TOKEN_GOTO)))
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text.append (" <--");
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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_REM) && basicPreferences.deleteExtraRemSpace)
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lineText = lineText.replaceFirst ("REM ", "REM ");
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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
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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 + "\n");
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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 ("\n");
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insertBlankLine = false;
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}
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// Reset alignment value if we just left an IF - 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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int ptr = endPtr + 2;
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if (ptr < buffer.length - 1) // sometimes there's an extra byte on the end
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{
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int offset = Utility.unsignedShort (buffer, 0);
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int programLoadAddress = offset - getLineLength (0);
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fullText.append ("\nExtra data:\n\n");
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fullText.append (HexFormatter.formatNoHeader (buffer, ptr, buffer.length - ptr,
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programLoadAddress + ptr));
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fullText.append ("\n");
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}
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if (basicPreferences.showSymbols && !symbolLines.isEmpty ())
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showSymbolsLeft (fullText, symbolLines, "Var");
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if (basicPreferences.showSymbols && !arrayLines.isEmpty ())
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showSymbolsLeft (fullText, arrayLines, "Array");
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if (basicPreferences.showDuplicateSymbols && !uniqueSymbols.isEmpty ())
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showDuplicates (fullText, uniqueSymbols, "Var");
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if (basicPreferences.showDuplicateSymbols && !uniqueArrays.isEmpty ())
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showDuplicates (fullText, uniqueArrays, "Array");
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if (basicPreferences.showFunctions && !functionLines.isEmpty ())
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showSymbolsLeft (fullText, functionLines, "Fnction");
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if (basicPreferences.showConstants && !constants.isEmpty ())
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showSymbolsRight (fullText, constants, "Literal");
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if (basicPreferences.listStrings && 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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if (basicPreferences.showXref && !gosubLines.isEmpty ())
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showSymbolsRight (fullText, gosubLines, "GOSUB");
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if (basicPreferences.showXref && !gotoLines.isEmpty ())
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showSymbolsRight (fullText, gotoLines, "GOTO");
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if (basicPreferences.showCalls && !callLines.isEmpty ())
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showSymbolsLeft (fullText, callLines, "CALL");
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if (fullText.length () > 0)
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while (fullText.charAt (fullText.length () - 1) == '\n')
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fullText.deleteCharAt (fullText.length () - 1); // remove trailing newlines
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return fullText.toString ();
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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 ("\n");
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fullText.append (String.format (format, underline));
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fullText.append (underline);
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fullText.append ("\n");
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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 ("\n");
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fullText.append (String.format (format, underline));
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fullText.append (underline);
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fullText.append ("\n");
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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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appendLineNumbers (fullText, String.format (formatLeft, symbol), map.get (symbol));
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}
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// ---------------------------------------------------------------------------------//
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private void showSymbolsRight (StringBuilder fullText, Map<Integer, List<Integer>> map,
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String heading)
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// ---------------------------------------------------------------------------------//
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{
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heading (fullText, formatRight, heading);
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for (Integer symbol : map.keySet ()) // right-justify integers
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appendLineNumbers (fullText, String.format (formatRight, symbol), map.get (symbol));
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}
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// ---------------------------------------------------------------------------------//
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private void appendLineNumbers (StringBuilder fullText, String symbol,
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List<Integer> lineNumbers)
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// ---------------------------------------------------------------------------------//
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{
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StringBuilder text = new StringBuilder ();
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text.append (symbol);
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for (int lineNo : lineNumbers)
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{
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if (text.length () > underline.length () - maxDigits + longestVarName)
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{
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fullText.append (text);
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fullText.append ("\n");
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text.setLength (0);
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text.append (String.format (formatRight, ""));
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}
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text.append (String.format (formatLineNumber, lineNo));
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}
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if (text.length () > longestVarName + 3)
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fullText.append (text + "\n");
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}
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// ---------------------------------------------------------------------------------//
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private int getLongestName ()
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// ---------------------------------------------------------------------------------//
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{
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int longestName = 0;
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longestName = getLongestName (symbolLines, longestName);
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longestName = getLongestName (arrayLines, longestName);
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longestName = getLongestName (functionLines, longestName);
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return longestName;
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}
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// ---------------------------------------------------------------------------------//
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private int getLongestName (Map<String, List<Integer>> map, int longestName)
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// ---------------------------------------------------------------------------------//
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{
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for (String symbol : map.keySet ())
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if (symbol.length () > longestName)
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longestName = symbol.length ();
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return longestName;
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}
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// ---------------------------------------------------------------------------------//
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private void wrapPrint (StringBuilder fullText, StringBuilder text, String lineText)
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// ---------------------------------------------------------------------------------//
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{
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if (true) // new method
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{
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List<String> lines = splitPrint (lineText);
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if (lines != null)
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{
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int offset = text.indexOf ("PRINT");
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if (offset < 0)
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offset = text.indexOf ("INPUT");
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String fmt = "%-" + offset + "." + offset + "s%s%n";
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String padding = text.substring (0, offset);
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for (String s : lines)
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{
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fullText.append (String.format (fmt, padding, s));
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|
padding = "";
|
|
}
|
|
}
|
|
else
|
|
fullText.append (text + "\n");
|
|
}
|
|
else // old method
|
|
{
|
|
int first = text.indexOf ("\"") + 1;
|
|
int last = text.indexOf ("\"", first + 1) - 1;
|
|
if ((last - first) > basicPreferences.wrapPrintAt)
|
|
{
|
|
int ptr = first + basicPreferences.wrapPrintAt;
|
|
do
|
|
{
|
|
fullText.append (text.substring (0, ptr)
|
|
+ "\n ".substring (0, first + 1));
|
|
text.delete (0, ptr);
|
|
ptr = basicPreferences.wrapPrintAt;
|
|
} while (text.length () > basicPreferences.wrapPrintAt);
|
|
}
|
|
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 firstSpace = 0;
|
|
while (firstSpace < line.length () && line.charAt (firstSpace) != ' ')
|
|
++firstSpace;
|
|
|
|
List<String> lines = new ArrayList<> ();
|
|
while (line.length () > wrapLength)
|
|
{
|
|
int max = Math.min (wrapLength, line.length () - 1);
|
|
while (max > 0 && line.charAt (max) != breakChar)
|
|
--max;
|
|
if (max == 0)
|
|
break;
|
|
lines.add (line.substring (0, max + 1));
|
|
line = " ".substring (0, firstSpace + 1) + line.substring (max + 1);
|
|
}
|
|
|
|
lines.add (line);
|
|
return lines;
|
|
}
|
|
|
|
// ---------------------------------------------------------------------------------//
|
|
private List<String> splitDim (String line)
|
|
// ---------------------------------------------------------------------------------//
|
|
{
|
|
List<String> lines = new ArrayList<> ();
|
|
|
|
Pattern p = Pattern.compile ("[A-Z][A-Z0-9]*[$%]?\\([0-9,]*\\)[,:]?");
|
|
Matcher m = p.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 getIndent (StringBuilder fullText)
|
|
// ---------------------------------------------------------------------------------//
|
|
{
|
|
int ptr = fullText.length () - 1;
|
|
int indent = 0;
|
|
while (ptr >= 0 && fullText.charAt (ptr) != '\n')
|
|
{
|
|
--ptr;
|
|
++indent;
|
|
}
|
|
return indent;
|
|
}
|
|
|
|
// ---------------------------------------------------------------------------------//
|
|
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;
|
|
}
|
|
|
|
// ---------------------------------------------------------------------------------//
|
|
private String getBase (SourceLine line)
|
|
// ---------------------------------------------------------------------------------//
|
|
{
|
|
boolean isTarget = gotoLines.containsKey (line.lineNumber)
|
|
|| gosubLines.containsKey (line.lineNumber);
|
|
|
|
if (!basicPreferences.showTargets)
|
|
{
|
|
if (!isTarget && basicPreferences.onlyShowTargetLineNumbers)
|
|
return " ";
|
|
return String.format (" %5d", line.lineNumber);
|
|
}
|
|
|
|
String lineNumberText = String.format ("%5d", line.lineNumber);
|
|
SubLine subline = line.sublines.get (0);
|
|
String c1 = " ", c2 = " ";
|
|
|
|
if (subline.is (TOKEN_GOSUB) || (subline.is (TOKEN_ON) && subline.has (TOKEN_GOSUB)))
|
|
c1 = "<<";
|
|
else if (subline.is (TOKEN_GOTO)
|
|
|| (subline.is (TOKEN_ON) && subline.has (TOKEN_GOTO)))
|
|
c1 = " <";
|
|
|
|
if (gotoLines.containsKey (line.lineNumber))
|
|
c2 = "> ";
|
|
if (gosubLines.containsKey (line.lineNumber))
|
|
c2 = ">>";
|
|
if (c1.equals (" ") && !c2.equals (" "))
|
|
c1 = "--";
|
|
if (!c1.equals (" ") && c2.equals (" "))
|
|
c2 = "--";
|
|
|
|
if (!isTarget && basicPreferences.onlyShowTargetLineNumbers)
|
|
lineNumberText = "";
|
|
|
|
return String.format ("%s%s %s", c1, c2, lineNumberText);
|
|
}
|
|
|
|
// 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 getHexText ()
|
|
// ---------------------------------------------------------------------------------//
|
|
{
|
|
if (buffer.length < 2)
|
|
return super.getHexDump ();
|
|
|
|
StringBuilder pgm = new StringBuilder ();
|
|
if (basicPreferences.showHeader)
|
|
addHeader (pgm);
|
|
|
|
int ptr = 0;
|
|
int offset = Utility.unsignedShort (buffer, 0);
|
|
int programLoadAddress = offset - getLineLength (0);
|
|
|
|
while (ptr <= endPtr) // stop at the same place as the source listing
|
|
{
|
|
int length = getLineLength (ptr);
|
|
if (length == 0)
|
|
{
|
|
pgm.append (
|
|
HexFormatter.formatNoHeader (buffer, ptr, 2, programLoadAddress + ptr));
|
|
ptr += 2;
|
|
break;
|
|
}
|
|
|
|
if (ptr + length < buffer.length)
|
|
pgm.append (
|
|
HexFormatter.formatNoHeader (buffer, ptr, length, programLoadAddress + ptr)
|
|
+ "\n\n");
|
|
ptr += length;
|
|
}
|
|
|
|
if (ptr < buffer.length)
|
|
{
|
|
int length = buffer.length - ptr;
|
|
pgm.append ("\n\n");
|
|
pgm.append (
|
|
HexFormatter.formatNoHeader (buffer, ptr, length, programLoadAddress + ptr));
|
|
}
|
|
|
|
return pgm.toString ();
|
|
}
|
|
|
|
// 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 ()
|
|
// ---------------------------------------------------------------------------------//
|
|
{
|
|
int programLoadAddress = 0;
|
|
if (buffer.length > 1)
|
|
{
|
|
int offset = Utility.unsignedShort (buffer, 0);
|
|
programLoadAddress = offset - getLineLength (0);
|
|
}
|
|
return programLoadAddress;
|
|
}
|
|
|
|
// ---------------------------------------------------------------------------------//
|
|
private int getLineLength (int ptr)
|
|
// ---------------------------------------------------------------------------------//
|
|
{
|
|
int offset = Utility.unsignedShort (buffer, ptr);
|
|
if (offset == 0)
|
|
return 0;
|
|
ptr += 4; // skip offset and line number
|
|
int length = 5;
|
|
|
|
while (ptr < buffer.length && buffer[ptr++] != 0)
|
|
length++;
|
|
|
|
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 String originalFormat ()
|
|
// ---------------------------------------------------------------------------------//
|
|
{
|
|
StringBuilder text = new StringBuilder ();
|
|
|
|
if (basicPreferences.showHeader)
|
|
addHeader (text);
|
|
|
|
int loadAddress = getLoadAddress ();
|
|
int ptr = 0;
|
|
int nextLine;
|
|
byte b;
|
|
|
|
while ((nextLine = Utility.unsignedShort (buffer, ptr)) != 0)
|
|
{
|
|
int lineNumber = Utility.unsignedShort (buffer, ptr + 2);
|
|
text.append (String.format (" %5d ", lineNumber));
|
|
ptr += 4;
|
|
|
|
while ((b = buffer[ptr++]) != 0)
|
|
if (Utility.isHighBitSet (b))
|
|
text.append (String.format (" %s ", ApplesoftConstants.tokens[b & 0x7F]));
|
|
else
|
|
text.append ((char) b);
|
|
|
|
assert ptr == nextLine - loadAddress;
|
|
// ptr = nextLine - loadAddress;
|
|
text.append ("\n");
|
|
}
|
|
|
|
if (text.length () > 0)
|
|
text.deleteCharAt (text.length () - 1);
|
|
|
|
return text.toString ();
|
|
}
|
|
} |