Format code and fix warnings.

Triangle.AbstractMachine.Disassembler/src/main/java/Triangle/AbstractMachine/Disassembler.java

@@ -20,8 +20,8 @@ import java.io.FileNotFoundException;
 import java.io.IOException;
 
 /**
- * Disassembles the TAM code in the given file, and displays the
- * instructions on standard output.
+ * Disassembles the TAM code in the given file, and displays the instructions on
+ * standard output.
  *
  * For example:
  *
@@ -38,361 +38,361 @@ import java.io.IOException;
 
 public class Disassembler {
 
-      static String objectName;
-
-      static int CT;
-
-      /**
-       * Writes the r-field of an instruction in the form "l<I>reg</I>r", where
-       * l and r are the bracket characters to use.
-       *
-       * @param leftbracket  the character to print before the register.
-       * @param r            the number of the register.
-       * @param rightbracket the character to print after the register.
-       */
-      private static void writeR(char leftbracket, int r, char rightbracket) {
-
-            System.out.print(leftbracket);
-            switch (r) {
-                  case Machine.CBr:
-                        System.out.print("CB");
-                        break;
-                  case Machine.CTr:
-                        System.out.print("CT");
-                        break;
-                  case Machine.PBr:
-                        System.out.print("PB");
-                        break;
-                  case Machine.PTr:
-                        System.out.print("PT");
-                        break;
-                  case Machine.SBr:
-                        System.out.print("SB");
-                        break;
-                  case Machine.STr:
-                        System.out.print("ST");
-                        break;
-                  case Machine.HBr:
-                        System.out.print("HB");
-                        break;
-                  case Machine.HTr:
-                        System.out.print("HT");
-                        break;
-                  case Machine.LBr:
-                        System.out.print("LB");
-                        break;
-                  case Machine.L1r:
-                        System.out.print("L1");
-                        break;
-                  case Machine.L2r:
-                        System.out.print("L2");
-                        break;
-                  case Machine.L3r:
-                        System.out.print("L3");
-                        break;
-                  case Machine.L4r:
-                        System.out.print("L4");
-                        break;
-                  case Machine.L5r:
-                        System.out.print("L5");
-                        break;
-                  case Machine.L6r:
-                        System.out.print("L6");
-                        break;
-                  case Machine.CPr:
-                        System.out.print("CP");
-                        break;
-            }
-            System.out.print(rightbracket);
-      }
-
-      /**
-       * Writes a void n-field of an instruction.
-       */
-      private static void blankN() {
-            System.out.print("      ");
-      }
-
-      // Writes the n-field of an instruction.
-      /**
-       * Writes the n-field of an instruction in the form "(n)".
-       *
-       * @param n the integer to write.
-       */
-      private static void writeN(int n) {
-            System.out.print("(" + n + ") ");
-            if (n < 10)
-                  System.out.print("  ");
-            else if (n < 100)
-                  System.out.print(" ");
-      }
-
-      /**
-       * Writes the d-field of an instruction.
-       *
-       * @param d the integer to write.
-       */
-      private static void writeD(int d) {
-            System.out.print(d);
-      }
-
-      /**
-       * Writes the name of primitive routine with relative address d.
-       *
-       * @param d the displacment of the primitive routine.
-       */
-      private static void writePrimitive(int d) {
-            switch (d) {
-                  case Machine.idDisplacement:
-                        System.out.print("id      ");
-                        break;
-                  case Machine.notDisplacement:
-                        System.out.print("not     ");
-                        break;
-                  case Machine.andDisplacement:
-                        System.out.print("and     ");
-                        break;
-                  case Machine.orDisplacement:
-                        System.out.print("or      ");
-                        break;
-                  case Machine.succDisplacement:
-                        System.out.print("succ    ");
-                        break;
-                  case Machine.predDisplacement:
-                        System.out.print("pred    ");
-                        break;
-                  case Machine.negDisplacement:
-                        System.out.print("neg     ");
-                        break;
-                  case Machine.addDisplacement:
-                        System.out.print("add     ");
-                        break;
-                  case Machine.subDisplacement:
-                        System.out.print("sub     ");
-                        break;
-                  case Machine.multDisplacement:
-                        System.out.print("mult    ");
-                        break;
-                  case Machine.divDisplacement:
-                        System.out.print("div     ");
-                        break;
-                  case Machine.modDisplacement:
-                        System.out.print("mod     ");
-                        break;
-                  case Machine.ltDisplacement:
-                        System.out.print("lt      ");
-                        break;
-                  case Machine.leDisplacement:
-                        System.out.print("le      ");
-                        break;
-                  case Machine.geDisplacement:
-                        System.out.print("ge      ");
-                        break;
-                  case Machine.gtDisplacement:
-                        System.out.print("gt      ");
-                        break;
-                  case Machine.eqDisplacement:
-                        System.out.print("eq      ");
-                        break;
-                  case Machine.neDisplacement:
-                        System.out.print("ne      ");
-                        break;
-                  case Machine.eolDisplacement:
-                        System.out.print("eol     ");
-                        break;
-                  case Machine.eofDisplacement:
-                        System.out.print("eof     ");
-                        break;
-                  case Machine.getDisplacement:
-                        System.out.print("get     ");
-                        break;
-                  case Machine.putDisplacement:
-                        System.out.print("put     ");
-                        break;
-                  case Machine.geteolDisplacement:
-                        System.out.print("geteol  ");
-                        break;
-                  case Machine.puteolDisplacement:
-                        System.out.print("puteol  ");
-                        break;
-                  case Machine.getintDisplacement:
-                        System.out.print("getint  ");
-                        break;
-                  case Machine.putintDisplacement:
-                        System.out.print("putint  ");
-                        break;
-                  case Machine.newDisplacement:
-                        System.out.print("new     ");
-                        break;
-                  case Machine.disposeDisplacement:
-                        System.out.print("dispose ");
-                        break;
-            }
-      }
-
-      /**
-       * Writes the given instruction in assembly-code format.
-       *
-       * @param instr the instruction to display.
-       */
-      private static void writeInstruction(Instruction instr) {
-
-            switch (instr.op) {
-                  case Machine.LOADop:
-                        System.out.print("LOAD  ");
-                        writeN(instr.n);
-                        writeD(instr.d);
-                        writeR('[', instr.r, ']');
-                        break;
-
-                  case Machine.LOADAop:
-                        System.out.print("LOADA ");
-                        blankN();
-                        writeD(instr.d);
-                        writeR('[', instr.r, ']');
-                        break;
-
-                  case Machine.LOADIop:
-                        System.out.print("LOADI ");
-                        writeN(instr.n);
-                        break;
-
-                  case Machine.LOADLop:
-                        System.out.print("LOADL ");
-                        blankN();
-                        writeD(instr.d);
-                        break;
-
-                  case Machine.STOREop:
-                        System.out.print("STORE ");
-                        writeN(instr.n);
-                        writeD(instr.d);
-                        writeR('[', instr.r, ']');
-                        break;
-
-                  case Machine.STOREIop:
-                        System.out.print("STOREI");
-                        writeN(instr.n);
-                        break;
-
-                  case Machine.CALLop:
-                        System.out.print("CALL  ");
-                        if (instr.r == Machine.PBr) {
-                              blankN();
-                              writePrimitive(instr.d);
-                        } else {
-                              writeR('(', instr.n, ')');
-                              System.out.print("  ");
-                              writeD(instr.d);
-                              writeR('[', instr.r, ']');
-                        }
-                        break;
-
-                  case Machine.CALLIop:
-                        System.out.print("CALLI ");
-                        break;
-
-                  case Machine.RETURNop:
-                        System.out.print("RETURN");
-                        writeN(instr.n);
-                        writeD(instr.d);
-                        break;
-
-                  case Machine.PUSHop:
-                        System.out.print("PUSH  ");
-                        blankN();
-                        writeD(instr.d);
-                        break;
-
-                  case Machine.POPop:
-                        System.out.print("POP   ");
-                        writeN(instr.n);
-                        writeD(instr.d);
-                        break;
-
-                  case Machine.JUMPop:
-                        System.out.print("JUMP  ");
-                        blankN();
-                        writeD(instr.d);
-                        writeR('[', instr.r, ']');
-                        break;
-
-                  case Machine.JUMPIop:
-                        System.out.print("JUMPI ");
-                        break;
-
-                  case Machine.JUMPIFop:
-                        System.out.print("JUMPIF");
-                        writeN(instr.n);
-                        writeD(instr.d);
-                        writeR('[', instr.r, ']');
-                        break;
-
-                  case Machine.HALTop:
-                        System.out.print("HALT  ");
-            }
-      }
-
-      /**
-       * Writes all instructions of the program in code store.
-       */
-      private static void disassembleProgram() {
-            for (int addr = Machine.CB; addr < CT; addr++) {
-                  System.out.print(addr + ":  ");
-                  writeInstruction(Machine.code[addr]);
-                  System.out.println();
-            }
-      }
-
-      // LOADING
-
-      /**
-       * Loads the TAM object program into code store from the named file.
-       *
-       * @param objectName the name of the file containing the program.
-       */
-      static void loadObjectProgram(String objectName) {
-
-            FileInputStream objectFile = null;
-            DataInputStream objectStream = null;
-
-            int addr;
-            boolean finished = false;
-
-            try {
-                  objectFile = new FileInputStream(objectName);
-                  objectStream = new DataInputStream(objectFile);
-
-                  addr = Machine.CB;
-                  while (!finished) {
-                        Machine.code[addr] = Instruction.read(objectStream);
-                        if (Machine.code[addr] == null)
-                              finished = true;
-                        else
-                              addr = addr + 1;
-                  }
-                  CT = addr;
-                  objectFile.close();
-            } catch (FileNotFoundException s) {
-                  CT = Machine.CB;
-                  System.err.println("Error opening object file: " + s);
-            } catch (IOException s) {
-                  CT = Machine.CB;
-                  System.err.println("Error reading object file: " + s);
-            }
-      }
-
-      // DISASSEMBLE
-
-      public static void main(String[] args) {
-            System.out.println("********** TAM Disassembler (Sun Version 2.1) **********");
-
-            if (args.length == 1)
-                  objectName = args[0];
-            else
-                  objectName = "obj.tam";
-
-            loadObjectProgram(objectName);
-            disassembleProgram();
-      }
+	static String objectName;
+
+	static int CT;
+
+	/**
+	 * Writes the r-field of an instruction in the form "l<I>reg</I>r", where l and
+	 * r are the bracket characters to use.
+	 *
+	 * @param leftbracket  the character to print before the register.
+	 * @param r            the number of the register.
+	 * @param rightbracket the character to print after the register.
+	 */
+	private static void writeR(char leftbracket, int r, char rightbracket) {
+
+		System.out.print(leftbracket);
+		switch (r) {
+		case Machine.CBr:
+			System.out.print("CB");
+			break;
+		case Machine.CTr:
+			System.out.print("CT");
+			break;
+		case Machine.PBr:
+			System.out.print("PB");
+			break;
+		case Machine.PTr:
+			System.out.print("PT");
+			break;
+		case Machine.SBr:
+			System.out.print("SB");
+			break;
+		case Machine.STr:
+			System.out.print("ST");
+			break;
+		case Machine.HBr:
+			System.out.print("HB");
+			break;
+		case Machine.HTr:
+			System.out.print("HT");
+			break;
+		case Machine.LBr:
+			System.out.print("LB");
+			break;
+		case Machine.L1r:
+			System.out.print("L1");
+			break;
+		case Machine.L2r:
+			System.out.print("L2");
+			break;
+		case Machine.L3r:
+			System.out.print("L3");
+			break;
+		case Machine.L4r:
+			System.out.print("L4");
+			break;
+		case Machine.L5r:
+			System.out.print("L5");
+			break;
+		case Machine.L6r:
+			System.out.print("L6");
+			break;
+		case Machine.CPr:
+			System.out.print("CP");
+			break;
+		}
+		System.out.print(rightbracket);
+	}
+
+	/**
+	 * Writes a void n-field of an instruction.
+	 */
+	private static void blankN() {
+		System.out.print("      ");
+	}
+
+	// Writes the n-field of an instruction.
+	/**
+	 * Writes the n-field of an instruction in the form "(n)".
+	 *
+	 * @param n the integer to write.
+	 */
+	private static void writeN(int n) {
+		System.out.print("(" + n + ") ");
+		if (n < 10)
+			System.out.print("  ");
+		else if (n < 100)
+			System.out.print(" ");
+	}
+
+	/**
+	 * Writes the d-field of an instruction.
+	 *
+	 * @param d the integer to write.
+	 */
+	private static void writeD(int d) {
+		System.out.print(d);
+	}
+
+	/**
+	 * Writes the name of primitive routine with relative address d.
+	 *
+	 * @param d the displacment of the primitive routine.
+	 */
+	private static void writePrimitive(int d) {
+		switch (d) {
+		case Machine.idDisplacement:
+			System.out.print("id      ");
+			break;
+		case Machine.notDisplacement:
+			System.out.print("not     ");
+			break;
+		case Machine.andDisplacement:
+			System.out.print("and     ");
+			break;
+		case Machine.orDisplacement:
+			System.out.print("or      ");
+			break;
+		case Machine.succDisplacement:
+			System.out.print("succ    ");
+			break;
+		case Machine.predDisplacement:
+			System.out.print("pred    ");
+			break;
+		case Machine.negDisplacement:
+			System.out.print("neg     ");
+			break;
+		case Machine.addDisplacement:
+			System.out.print("add     ");
+			break;
+		case Machine.subDisplacement:
+			System.out.print("sub     ");
+			break;
+		case Machine.multDisplacement:
+			System.out.print("mult    ");
+			break;
+		case Machine.divDisplacement:
+			System.out.print("div     ");
+			break;
+		case Machine.modDisplacement:
+			System.out.print("mod     ");
+			break;
+		case Machine.ltDisplacement:
+			System.out.print("lt      ");
+			break;
+		case Machine.leDisplacement:
+			System.out.print("le      ");
+			break;
+		case Machine.geDisplacement:
+			System.out.print("ge      ");
+			break;
+		case Machine.gtDisplacement:
+			System.out.print("gt      ");
+			break;
+		case Machine.eqDisplacement:
+			System.out.print("eq      ");
+			break;
+		case Machine.neDisplacement:
+			System.out.print("ne      ");
+			break;
+		case Machine.eolDisplacement:
+			System.out.print("eol     ");
+			break;
+		case Machine.eofDisplacement:
+			System.out.print("eof     ");
+			break;
+		case Machine.getDisplacement:
+			System.out.print("get     ");
+			break;
+		case Machine.putDisplacement:
+			System.out.print("put     ");
+			break;
+		case Machine.geteolDisplacement:
+			System.out.print("geteol  ");
+			break;
+		case Machine.puteolDisplacement:
+			System.out.print("puteol  ");
+			break;
+		case Machine.getintDisplacement:
+			System.out.print("getint  ");
+			break;
+		case Machine.putintDisplacement:
+			System.out.print("putint  ");
+			break;
+		case Machine.newDisplacement:
+			System.out.print("new     ");
+			break;
+		case Machine.disposeDisplacement:
+			System.out.print("dispose ");
+			break;
+		}
+	}
+
+	/**
+	 * Writes the given instruction in assembly-code format.
+	 *
+	 * @param instr the instruction to display.
+	 */
+	private static void writeInstruction(Instruction instr) {
+
+		switch (instr.op) {
+		case Machine.LOADop:
+			System.out.print("LOAD  ");
+			writeN(instr.n);
+			writeD(instr.d);
+			writeR('[', instr.r, ']');
+			break;
+
+		case Machine.LOADAop:
+			System.out.print("LOADA ");
+			blankN();
+			writeD(instr.d);
+			writeR('[', instr.r, ']');
+			break;
+
+		case Machine.LOADIop:
+			System.out.print("LOADI ");
+			writeN(instr.n);
+			break;
+
+		case Machine.LOADLop:
+			System.out.print("LOADL ");
+			blankN();
+			writeD(instr.d);
+			break;
+
+		case Machine.STOREop:
+			System.out.print("STORE ");
+			writeN(instr.n);
+			writeD(instr.d);
+			writeR('[', instr.r, ']');
+			break;
+
+		case Machine.STOREIop:
+			System.out.print("STOREI");
+			writeN(instr.n);
+			break;
+
+		case Machine.CALLop:
+			System.out.print("CALL  ");
+			if (instr.r == Machine.PBr) {
+				blankN();
+				writePrimitive(instr.d);
+			} else {
+				writeR('(', instr.n, ')');
+				System.out.print("  ");
+				writeD(instr.d);
+				writeR('[', instr.r, ']');
+			}
+			break;
+
+		case Machine.CALLIop:
+			System.out.print("CALLI ");
+			break;
+
+		case Machine.RETURNop:
+			System.out.print("RETURN");
+			writeN(instr.n);
+			writeD(instr.d);
+			break;
+
+		case Machine.PUSHop:
+			System.out.print("PUSH  ");
+			blankN();
+			writeD(instr.d);
+			break;
+
+		case Machine.POPop:
+			System.out.print("POP   ");
+			writeN(instr.n);
+			writeD(instr.d);
+			break;
+
+		case Machine.JUMPop:
+			System.out.print("JUMP  ");
+			blankN();
+			writeD(instr.d);
+			writeR('[', instr.r, ']');
+			break;
+
+		case Machine.JUMPIop:
+			System.out.print("JUMPI ");
+			break;
+
+		case Machine.JUMPIFop:
+			System.out.print("JUMPIF");
+			writeN(instr.n);
+			writeD(instr.d);
+			writeR('[', instr.r, ']');
+			break;
+
+		case Machine.HALTop:
+			System.out.print("HALT  ");
+		}
+	}
+
+	/**
+	 * Writes all instructions of the program in code store.
+	 */
+	private static void disassembleProgram() {
+		for (int addr = Machine.CB; addr < CT; addr++) {
+			System.out.print(addr + ":  ");
+			writeInstruction(Machine.code[addr]);
+			System.out.println();
+		}
+	}
+
+	// LOADING
+
+	/**
+	 * Loads the TAM object program into code store from the named file.
+	 *
+	 * @param objectName the name of the file containing the program.
+	 */
+	static void loadObjectProgram(String objectName) {
+
+		FileInputStream objectFile = null;
+		DataInputStream objectStream = null;
+
+		int addr;
+		boolean finished = false;
+
+		try {
+			objectFile = new FileInputStream(objectName);
+			objectStream = new DataInputStream(objectFile);
+
+			addr = Machine.CB;
+			while (!finished) {
+				Machine.code[addr] = Instruction.read(objectStream);
+				if (Machine.code[addr] == null)
+					finished = true;
+				else
+					addr = addr + 1;
+			}
+			CT = addr;
+			objectFile.close();
+		} catch (FileNotFoundException s) {
+			CT = Machine.CB;
+			System.err.println("Error opening object file: " + s);
+		} catch (IOException s) {
+			CT = Machine.CB;
+			System.err.println("Error reading object file: " + s);
+		}
+	}
+
+	// DISASSEMBLE
+
+	public static void main(String[] args) {
+		System.out.println("********** TAM Disassembler (Sun Version 2.1) **********");
+
+		if (args.length == 1)
+			objectName = args[0];
+		else
+			objectName = "obj.tam";
+
+		loadObjectProgram(objectName);
+		disassembleProgram();
+	}
 }

Triangle.AbstractMachine/src/main/java/Triangle/AbstractMachine/Instruction.java

@@ -21,44 +21,44 @@ import java.io.IOException;
 
 public class Instruction {
 
-  public Instruction() {
-    op = 0;
-    r = 0;
-    n = 0;
-    d = 0;
-  }
+	public Instruction() {
+		op = 0;
+		r = 0;
+		n = 0;
+		d = 0;
+	}
 
-  // Java has no type synonyms, so the following representations are
-  // assumed:
-  //
-  // type
-  // OpCode = 0..15; {4 bits unsigned}
-  // Length = 0..255; {8 bits unsigned}
-  // Operand = -32767..+32767; {16 bits signed}
+	// Java has no type synonyms, so the following representations are
+	// assumed:
+	//
+	// type
+	// OpCode = 0..15; {4 bits unsigned}
+	// Length = 0..255; {8 bits unsigned}
+	// Operand = -32767..+32767; {16 bits signed}
 
-  // Represents TAM instructions.
-  public int op; // OpCode
-  public int r; // RegisterNumber
-  public int n; // Length
-  public int d; // Operand
+	// Represents TAM instructions.
+	public int op; // OpCode
+	public int r; // RegisterNumber
+	public int n; // Length
+	public int d; // Operand
 
-  public void write(DataOutputStream output) throws IOException {
-    output.writeInt(op);
-    output.writeInt(r);
-    output.writeInt(n);
-    output.writeInt(d);
-  }
+	public void write(DataOutputStream output) throws IOException {
+		output.writeInt(op);
+		output.writeInt(r);
+		output.writeInt(n);
+		output.writeInt(d);
+	}
 
-  public static Instruction read(DataInputStream input) throws IOException {
-    Instruction inst = new Instruction();
-    try {
-      inst.op = input.readInt();
-      inst.r = input.readInt();
-      inst.n = input.readInt();
-      inst.d = input.readInt();
-      return inst;
-    } catch (EOFException s) {
-      return null;
-    }
-  }
+	public static Instruction read(DataInputStream input) throws IOException {
+		Instruction inst = new Instruction();
+		try {
+			inst.op = input.readInt();
+			inst.r = input.readInt();
+			inst.n = input.readInt();
+			inst.d = input.readInt();
+			return inst;
+		} catch (EOFException s) {
+			return null;
+		}
+	}
 }

Triangle.AbstractMachine/src/main/java/Triangle/AbstractMachine/Machine.java

@@ -16,110 +16,56 @@ package Triangle.AbstractMachine;
 
 public final class Machine {
 
-  public final static int maxRoutineLevel = 7;
-
-  // WORDS AND ADDRESSES
-
-  // Java has no type synonyms, so the following representations are
-  // assumed:
-  //
-  // type
-  // Word = -32767..+32767; {16 bits signed}
-  // DoubleWord = -2147483648..+2147483647; {32 bits signed}
-  // CodeAddress = 0..+32767; {15 bits unsigned}
-  // DataAddress = 0..+32767; {15 bits unsigned}
-
-  // INSTRUCTIONS
-
-  // Operation codes
-  public final static int LOADop = 0,
-      LOADAop = 1,
-      LOADIop = 2,
-      LOADLop = 3,
-      STOREop = 4,
-      STOREIop = 5,
-      CALLop = 6,
-      CALLIop = 7,
-      RETURNop = 8,
-      PUSHop = 10,
-      POPop = 11,
-      JUMPop = 12,
-      JUMPIop = 13,
-      JUMPIFop = 14,
-      HALTop = 15;
-
-  // CODE STORE
-
-  public static Instruction[] code = new Instruction[1024];
-
-  // CODE STORE REGISTERS
-
-  public final static int CB = 0,
-      PB = 1024, // = upper bound of code array + 1
-      PT = 1052; // = PB + 28
-
-  // REGISTER NUMBERS
-
-  public final static int CBr = 0,
-      CTr = 1,
-      PBr = 2,
-      PTr = 3,
-      SBr = 4,
-      STr = 5,
-      HBr = 6,
-      HTr = 7,
-      LBr = 8,
-      L1r = LBr + 1,
-      L2r = LBr + 2,
-      L3r = LBr + 3,
-      L4r = LBr + 4,
-      L5r = LBr + 5,
-      L6r = LBr + 6,
-      CPr = 15;
-
-  // DATA REPRESENTATION
-
-  public final static int booleanSize = 1,
-      characterSize = 1,
-      integerSize = 1,
-      addressSize = 1,
-      closureSize = 2 * addressSize,
-
-      linkDataSize = 3 * addressSize,
-
-      falseRep = 0,
-      trueRep = 1,
-      maxintRep = 32767;
-
-  // ADDRESSES OF PRIMITIVE ROUTINES
-
-  public final static int idDisplacement = 1,
-      notDisplacement = 2,
-      andDisplacement = 3,
-      orDisplacement = 4,
-      succDisplacement = 5,
-      predDisplacement = 6,
-      negDisplacement = 7,
-      addDisplacement = 8,
-      subDisplacement = 9,
-      multDisplacement = 10,
-      divDisplacement = 11,
-      modDisplacement = 12,
-      ltDisplacement = 13,
-      leDisplacement = 14,
-      geDisplacement = 15,
-      gtDisplacement = 16,
-      eqDisplacement = 17,
-      neDisplacement = 18,
-      eolDisplacement = 19,
-      eofDisplacement = 20,
-      getDisplacement = 21,
-      putDisplacement = 22,
-      geteolDisplacement = 23,
-      puteolDisplacement = 24,
-      getintDisplacement = 25,
-      putintDisplacement = 26,
-      newDisplacement = 27,
-      disposeDisplacement = 28;
+	public final static int maxRoutineLevel = 7;
+
+	// WORDS AND ADDRESSES
+
+	// Java has no type synonyms, so the following representations are
+	// assumed:
+	//
+	// type
+	// Word = -32767..+32767; {16 bits signed}
+	// DoubleWord = -2147483648..+2147483647; {32 bits signed}
+	// CodeAddress = 0..+32767; {15 bits unsigned}
+	// DataAddress = 0..+32767; {15 bits unsigned}
+
+	// INSTRUCTIONS
+
+	// Operation codes
+	public final static int LOADop = 0, LOADAop = 1, LOADIop = 2, LOADLop = 3, STOREop = 4, STOREIop = 5, CALLop = 6,
+			CALLIop = 7, RETURNop = 8, PUSHop = 10, POPop = 11, JUMPop = 12, JUMPIop = 13, JUMPIFop = 14, HALTop = 15;
+
+	// CODE STORE
+
+	public static Instruction[] code = new Instruction[1024];
+
+	// CODE STORE REGISTERS
+
+	public final static int CB = 0, PB = 1024, // = upper bound of code array + 1
+			PT = 1052; // = PB + 28
+
+	// REGISTER NUMBERS
+
+	public final static int CBr = 0, CTr = 1, PBr = 2, PTr = 3, SBr = 4, STr = 5, HBr = 6, HTr = 7, LBr = 8,
+			L1r = LBr + 1, L2r = LBr + 2, L3r = LBr + 3, L4r = LBr + 4, L5r = LBr + 5, L6r = LBr + 6, CPr = 15;
+
+	// DATA REPRESENTATION
+
+	public final static int booleanSize = 1, characterSize = 1, integerSize = 1, addressSize = 1,
+			closureSize = 2 * addressSize,
+
+			linkDataSize = 3 * addressSize,
+
+			falseRep = 0, trueRep = 1, maxintRep = 32767;
+
+	// ADDRESSES OF PRIMITIVE ROUTINES
+
+	public final static int idDisplacement = 1, notDisplacement = 2, andDisplacement = 3, orDisplacement = 4,
+			succDisplacement = 5, predDisplacement = 6, negDisplacement = 7, addDisplacement = 8, subDisplacement = 9,
+			multDisplacement = 10, divDisplacement = 11, modDisplacement = 12, ltDisplacement = 13, leDisplacement = 14,
+			geDisplacement = 15, gtDisplacement = 16, eqDisplacement = 17, neDisplacement = 18, eolDisplacement = 19,
+			eofDisplacement = 20, getDisplacement = 21, putDisplacement = 22, geteolDisplacement = 23,
+			puteolDisplacement = 24, getintDisplacement = 25, putintDisplacement = 26, newDisplacement = 27,
+			disposeDisplacement = 28;
 
 }

Triangle.Compiler/src/main/java/Triangle/AbstractSyntaxTrees/AST.java

@@ -19,17 +19,17 @@ import Triangle.SyntacticAnalyzer.SourcePosition;
 
 public abstract class AST {
 
-  public AST(SourcePosition thePosition) {
-    position = thePosition;
-    entity = null;
-  }
+	public AST(SourcePosition thePosition) {
+		position = thePosition;
+		entity = null;
+	}
 
-  public SourcePosition getPosition() {
-    return position;
-  }
+	public SourcePosition getPosition() {
+		return position;
+	}
 
-  public abstract Object visit(Visitor v, Object o);
+	public abstract Object visit(Visitor v, Object o);
 
-  public SourcePosition position;
-  public RuntimeEntity entity;
+	public SourcePosition position;
+	public RuntimeEntity entity;
 }

Triangle.Compiler/src/main/java/Triangle/AbstractSyntaxTrees/ActualParameter.java

@@ -18,7 +18,7 @@ import Triangle.SyntacticAnalyzer.SourcePosition;
 
 public abstract class ActualParameter extends AST {
 
-  public ActualParameter(SourcePosition thePosition) {
-    super(thePosition);
-  }
+	public ActualParameter(SourcePosition thePosition) {
+		super(thePosition);
+	}
 }

Triangle.Compiler/src/main/java/Triangle/AbstractSyntaxTrees/ActualParameterSequence.java

@@ -18,7 +18,7 @@ import Triangle.SyntacticAnalyzer.SourcePosition;
 
 public abstract class ActualParameterSequence extends AST {
 
-  public ActualParameterSequence(SourcePosition thePosition) {
-    super(thePosition);
-  }
+	public ActualParameterSequence(SourcePosition thePosition) {
+		super(thePosition);
+	}
 }

Triangle.Compiler/src/main/java/Triangle/AbstractSyntaxTrees/AnyTypeDenoter.java

@@ -18,17 +18,17 @@ import Triangle.SyntacticAnalyzer.SourcePosition;
 
 public class AnyTypeDenoter extends TypeDenoter {
 
-  public AnyTypeDenoter(SourcePosition thePosition) {
-    super(thePosition);
-  }
+	public AnyTypeDenoter(SourcePosition thePosition) {
+		super(thePosition);
+	}
 
-  @Override
-public Object visit(Visitor v, Object o) {
-    return v.visitAnyTypeDenoter(this, o);
-  }
+	@Override
+	public Object visit(Visitor v, Object o) {
+		return v.visitAnyTypeDenoter(this, o);
+	}
 
-  @Override
-public boolean equals(Object obj) {
-    return false;
-  }
+	@Override
+	public boolean equals(Object obj) {
+		return false;
+	}
 }

Triangle.Compiler/src/main/java/Triangle/AbstractSyntaxTrees/ArrayAggregate.java

@@ -18,10 +18,10 @@ import Triangle.SyntacticAnalyzer.SourcePosition;
 
 public abstract class ArrayAggregate extends AST {
 
-  public ArrayAggregate(SourcePosition thePosition) {
-    super(thePosition);
-    elemCount = 0;
-  }
+	public ArrayAggregate(SourcePosition thePosition) {
+		super(thePosition);
+		elemCount = 0;
+	}
 
-  public int elemCount;
+	public int elemCount;
 }

Triangle.Compiler/src/main/java/Triangle/AbstractSyntaxTrees/ArrayExpression.java

@@ -18,16 +18,15 @@ import Triangle.SyntacticAnalyzer.SourcePosition;
 
 public class ArrayExpression extends Expression {
 
-  public ArrayExpression(ArrayAggregate aaAST,
-      SourcePosition thePosition) {
-    super(thePosition);
-    AA = aaAST;
-  }
+	public ArrayExpression(ArrayAggregate aaAST, SourcePosition thePosition) {
+		super(thePosition);
+		AA = aaAST;
+	}
 
-  @Override
-public Object visit(Visitor v, Object o) {
-    return v.visitArrayExpression(this, o);
-  }
+	@Override
+	public Object visit(Visitor v, Object o) {
+		return v.visitArrayExpression(this, o);
+	}
 
-  public ArrayAggregate AA;
+	public ArrayAggregate AA;
 }

Triangle.Compiler/src/main/java/Triangle/AbstractSyntaxTrees/ArrayTypeDenoter.java

@@ -18,29 +18,28 @@ import Triangle.SyntacticAnalyzer.SourcePosition;
 
 public class ArrayTypeDenoter extends TypeDenoter {
 
-  public ArrayTypeDenoter(IntegerLiteral ilAST, TypeDenoter tAST,
-      SourcePosition thePosition) {
-    super(thePosition);
-    IL = ilAST;
-    T = tAST;
-  }
+	public ArrayTypeDenoter(IntegerLiteral ilAST, TypeDenoter tAST, SourcePosition thePosition) {
+		super(thePosition);
+		IL = ilAST;
+		T = tAST;
+	}
 
-  @Override
-public Object visit(Visitor v, Object o) {
-    return v.visitArrayTypeDenoter(this, o);
-  }
+	@Override
+	public Object visit(Visitor v, Object o) {
+		return v.visitArrayTypeDenoter(this, o);
+	}
 
-  @Override
-public boolean equals(Object obj) {
-    if (obj != null && obj instanceof ErrorTypeDenoter)
-      return true;
-    else if (obj != null && obj instanceof ArrayTypeDenoter)
-      return this.IL.spelling.compareTo(((ArrayTypeDenoter) obj).IL.spelling) == 0 &&
-          this.T.equals(((ArrayTypeDenoter) obj).T);
-    else
-      return false;
-  }
+	@Override
+	public boolean equals(Object obj) {
+		if (obj != null && obj instanceof ErrorTypeDenoter)
+			return true;
+		else if (obj != null && obj instanceof ArrayTypeDenoter)
+			return this.IL.spelling.compareTo(((ArrayTypeDenoter) obj).IL.spelling) == 0
+					&& this.T.equals(((ArrayTypeDenoter) obj).T);
+		else
+			return false;
+	}
 
-  public IntegerLiteral IL;
-  public TypeDenoter T;
+	public IntegerLiteral IL;
+	public TypeDenoter T;
 }

Triangle.Compiler/src/main/java/Triangle/AbstractSyntaxTrees/AssignCommand.java

@@ -18,17 +18,17 @@ import Triangle.SyntacticAnalyzer.SourcePosition;
 
 public class AssignCommand extends Command {
 
-  public AssignCommand(Vname vAST, Expression eAST, SourcePosition thePosition) {
-    super(thePosition);
-    V = vAST;
-    E = eAST;
-  }
+	public AssignCommand(Vname vAST, Expression eAST, SourcePosition thePosition) {
+		super(thePosition);
+		V = vAST;
+		E = eAST;
+	}
 
-  @Override
-public Object visit(Visitor v, Object o) {
-    return v.visitAssignCommand(this, o);
-  }
+	@Override
+	public Object visit(Visitor v, Object o) {
+		return v.visitAssignCommand(this, o);
+	}
 
-  public Vname V;
-  public Expression E;
+	public Vname V;
+	public Expression E;
 }

Triangle.Compiler/src/main/java/Triangle/AbstractSyntaxTrees/BinaryExpression.java

@@ -18,19 +18,18 @@ import Triangle.SyntacticAnalyzer.SourcePosition;
 
 public class BinaryExpression extends Expression {
 
-  public BinaryExpression(Expression e1AST, Operator oAST, Expression e2AST,
-      SourcePosition thePosition) {
-    super(thePosition);
-    O = oAST;
-    E1 = e1AST;
-    E2 = e2AST;
-  }
+	public BinaryExpression(Expression e1AST, Operator oAST, Expression e2AST, SourcePosition thePosition) {
+		super(thePosition);
+		O = oAST;
+		E1 = e1AST;
+		E2 = e2AST;
+	}
 
-  @Override
-public Object visit(Visitor v, Object o) {
-    return v.visitBinaryExpression(this, o);
-  }
+	@Override
+	public Object visit(Visitor v, Object o) {
+		return v.visitBinaryExpression(this, o);
+	}
 
-  public Expression E1, E2;
-  public Operator O;
+	public Expression E1, E2;
+	public Operator O;
 }

Triangle.Compiler/src/main/java/Triangle/AbstractSyntaxTrees/BinaryOperatorDeclaration.java

@@ -18,21 +18,20 @@ import Triangle.SyntacticAnalyzer.SourcePosition;
 
 public class BinaryOperatorDeclaration extends Declaration {
 
-  public BinaryOperatorDeclaration(Operator oAST, TypeDenoter arg1AST,
-      TypeDenoter arg2AST, TypeDenoter resultAST,
-      SourcePosition thePosition) {
-    super(thePosition);
-    O = oAST;
-    ARG1 = arg1AST;
-    ARG2 = arg2AST;
-    RES = resultAST;
-  }
+	public BinaryOperatorDeclaration(Operator oAST, TypeDenoter arg1AST, TypeDenoter arg2AST, TypeDenoter resultAST,
+			SourcePosition thePosition) {
+		super(thePosition);
+		O = oAST;
+		ARG1 = arg1AST;
+		ARG2 = arg2AST;
+		RES = resultAST;
+	}
 
-  @Override
-public Object visit(Visitor v, Object o) {
-    return v.visitBinaryOperatorDeclaration(this, o);
-  }
+	@Override
+	public Object visit(Visitor v, Object o) {
+		return v.visitBinaryOperatorDeclaration(this, o);
+	}
 
-  public Operator O;
-  public TypeDenoter ARG1, ARG2, RES;
+	public Operator O;
+	public TypeDenoter ARG1, ARG2, RES;
 }

Triangle.Compiler/src/main/java/Triangle/AbstractSyntaxTrees/BoolTypeDenoter.java

@@ -18,20 +18,20 @@ import Triangle.SyntacticAnalyzer.SourcePosition;
 
 public class BoolTypeDenoter extends TypeDenoter {
 
-  public BoolTypeDenoter(SourcePosition thePosition) {
-    super(thePosition);
-  }
+	public BoolTypeDenoter(SourcePosition thePosition) {
+		super(thePosition);
+	}
 
-  @Override
-public Object visit(Visitor v, Object o) {
-    return v.visitBoolTypeDenoter(this, o);
-  }
+	@Override
+	public Object visit(Visitor v, Object o) {
+		return v.visitBoolTypeDenoter(this, o);
+	}
 
-  @Override
-public boolean equals(Object obj) {
-    if ((obj != null) && (obj instanceof ErrorTypeDenoter))
-      return true;
-    else
-      return ((obj != null) && (obj instanceof BoolTypeDenoter));
-  }
+	@Override
+	public boolean equals(Object obj) {
+		if ((obj != null) && (obj instanceof ErrorTypeDenoter))
+			return true;
+		else
+			return ((obj != null) && (obj instanceof BoolTypeDenoter));
+	}
 }

Triangle.Compiler/src/main/java/Triangle/AbstractSyntaxTrees/CallCommand.java

@@ -18,18 +18,17 @@ import Triangle.SyntacticAnalyzer.SourcePosition;
 
 public class CallCommand extends Command {
 
-  public CallCommand(Identifier iAST, ActualParameterSequence apsAST,
-      SourcePosition thePosition) {
-    super(thePosition);
-    I = iAST;
-    APS = apsAST;
-  }
+	public CallCommand(Identifier iAST, ActualParameterSequence apsAST, SourcePosition thePosition) {
+		super(thePosition);
+		I = iAST;
+		APS = apsAST;
+	}
 
-  @Override
-public Object visit(Visitor v, Object o) {
-    return v.visitCallCommand(this, o);
-  }
+	@Override
+	public Object visit(Visitor v, Object o) {
+		return v.visitCallCommand(this, o);
+	}
 
-  public Identifier I;
-  public ActualParameterSequence APS;
+	public Identifier I;
+	public ActualParameterSequence APS;
 }

Triangle.Compiler/src/main/java/Triangle/AbstractSyntaxTrees/CallExpression.java

@@ -18,18 +18,17 @@ import Triangle.SyntacticAnalyzer.SourcePosition;
 
 public class CallExpression extends Expression {
 
-  public CallExpression(Identifier iAST, ActualParameterSequence apsAST,
-      SourcePosition thePosition) {
-    super(thePosition);
-    I = iAST;
-    APS = apsAST;
-  }
+	public CallExpression(Identifier iAST, ActualParameterSequence apsAST, SourcePosition thePosition) {
+		super(thePosition);
+		I = iAST;
+		APS = apsAST;
+	}
 
-  @Override
-public Object visit(Visitor v, Object o) {
-    return v.visitCallExpression(this, o);
-  }
+	@Override
+	public Object visit(Visitor v, Object o) {
+		return v.visitCallExpression(this, o);
+	}
 
-  public Identifier I;
-  public ActualParameterSequence APS;
+	public Identifier I;
+	public ActualParameterSequence APS;
 }

Triangle.Compiler/src/main/java/Triangle/AbstractSyntaxTrees/CharTypeDenoter.java

@@ -18,20 +18,20 @@ import Triangle.SyntacticAnalyzer.SourcePosition;
 
 public class CharTypeDenoter extends TypeDenoter {
 
-  public CharTypeDenoter(SourcePosition thePosition) {
-    super(thePosition);
-  }
+	public CharTypeDenoter(SourcePosition thePosition) {
+		super(thePosition);
+	}
 
-  @Override
-public Object visit(Visitor v, Object o) {
-    return v.visitCharTypeDenoter(this, o);
-  }
+	@Override
+	public Object visit(Visitor v, Object o) {
+		return v.visitCharTypeDenoter(this, o);
+	}
 
-  @Override
-public boolean equals(Object obj) {
-    if (obj != null && obj instanceof ErrorTypeDenoter)
-      return true;
-    else
-      return (obj != null && obj instanceof CharTypeDenoter);
-  }
+	@Override
+	public boolean equals(Object obj) {
+		if (obj != null && obj instanceof ErrorTypeDenoter)
+			return true;
+		else
+			return (obj != null && obj instanceof CharTypeDenoter);
+	}
 }

Triangle.Compiler/src/main/java/Triangle/AbstractSyntaxTrees/CharacterExpression.java

@@ -18,15 +18,15 @@ import Triangle.SyntacticAnalyzer.SourcePosition;
 
 public class CharacterExpression extends Expression {
 
-  public CharacterExpression(CharacterLiteral clAST, SourcePosition thePosition) {
-    super(thePosition);
-    CL = clAST;
-  }
+	public CharacterExpression(CharacterLiteral clAST, SourcePosition thePosition) {
+		super(thePosition);
+		CL = clAST;
+	}
 
-  @Override
-public Object visit(Visitor v, Object o) {
-    return v.visitCharacterExpression(this, o);
-  }
+	@Override
+	public Object visit(Visitor v, Object o) {
+		return v.visitCharacterExpression(this, o);
+	}
 
-  public CharacterLiteral CL;
+	public CharacterLiteral CL;
 }

Triangle.Compiler/src/main/java/Triangle/AbstractSyntaxTrees/CharacterLiteral.java

@@ -18,13 +18,13 @@ import Triangle.SyntacticAnalyzer.SourcePosition;
 
 public class CharacterLiteral extends Terminal {
 
-  public CharacterLiteral(String theSpelling, SourcePosition thePosition) {
-    super(theSpelling, thePosition);
-  }
+	public CharacterLiteral(String theSpelling, SourcePosition thePosition) {
+		super(theSpelling, thePosition);
+	}
 
-  @Override
-public Object visit(Visitor v, Object o) {
-    return v.visitCharacterLiteral(this, o);
-  }
+	@Override
+	public Object visit(Visitor v, Object o) {
+		return v.visitCharacterLiteral(this, o);
+	}
 
 }

Triangle.Compiler/src/main/java/Triangle/AbstractSyntaxTrees/Command.java

@@ -18,7 +18,7 @@ import Triangle.SyntacticAnalyzer.SourcePosition;
 
 public abstract class Command extends AST {
 
-  public Command(SourcePosition thePosition) {
-    super(thePosition);
-  }
+	public Command(SourcePosition thePosition) {
+		super(thePosition);
+	}
 }

Triangle.Compiler/src/main/java/Triangle/AbstractSyntaxTrees/ConstActualParameter.java

@@ -18,15 +18,15 @@ import Triangle.SyntacticAnalyzer.SourcePosition;
 
 public class ConstActualParameter extends ActualParameter {
 
-  public ConstActualParameter(Expression eAST, SourcePosition thePosition) {
-    super(thePosition);
-    E = eAST;
-  }
+	public ConstActualParameter(Expression eAST, SourcePosition thePosition) {
+		super(thePosition);
+		E = eAST;
+	}
 
-  @Override
-public Object visit(Visitor v, Object o) {
-    return v.visitConstActualParameter(this, o);
-  }
+	@Override
+	public Object visit(Visitor v, Object o) {
+		return v.visitConstActualParameter(this, o);
+	}
 
-  public Expression E;
+	public Expression E;
 }

Triangle.Compiler/src/main/java/Triangle/AbstractSyntaxTrees/ConstDeclaration.java

@@ -18,18 +18,17 @@ import Triangle.SyntacticAnalyzer.SourcePosition;
 
 public class ConstDeclaration extends Declaration {
 
-  public ConstDeclaration(Identifier iAST, Expression eAST,
-      SourcePosition thePosition) {
-    super(thePosition);
-    I = iAST;
-    E = eAST;
-  }
+	public ConstDeclaration(Identifier iAST, Expression eAST, SourcePosition thePosition) {
+		super(thePosition);
+		I = iAST;
+		E = eAST;
+	}
 
-  @Override
-public Object visit(Visitor v, Object o) {
-    return v.visitConstDeclaration(this, o);
-  }
+	@Override
+	public Object visit(Visitor v, Object o) {
+		return v.visitConstDeclaration(this, o);
+	}
 
-  public Identifier I;
-  public Expression E;
+	public Identifier I;
+	public Expression E;
 }

Triangle.Compiler/src/main/java/Triangle/AbstractSyntaxTrees/ConstFormalParameter.java

@@ -18,27 +18,26 @@ import Triangle.SyntacticAnalyzer.SourcePosition;
 
 public class ConstFormalParameter extends FormalParameter {
 
-  public ConstFormalParameter(Identifier iAST, TypeDenoter tAST,
-      SourcePosition thePosition) {
-    super(thePosition);
-    I = iAST;
-    T = tAST;
-  }
+	public ConstFormalParameter(Identifier iAST, TypeDenoter tAST, SourcePosition thePosition) {
+		super(thePosition);
+		I = iAST;
+		T = tAST;
+	}
 
-  @Override
-public Object visit(Visitor v, Object o) {
-    return v.visitConstFormalParameter(this, o);
-  }
+	@Override
+	public Object visit(Visitor v, Object o) {
+		return v.visitConstFormalParameter(this, o);
+	}
 
-  public Identifier I;
-  public TypeDenoter T;
+	public Identifier I;
+	public TypeDenoter T;
 
-  @Override
-public boolean equals(Object fpAST) {
-    if (fpAST instanceof ConstFormalParameter) {
-      ConstFormalParameter cfpAST = (ConstFormalParameter) fpAST;
-      return T.equals(cfpAST.T);
-    } else
-      return false;
-  }
+	@Override
+	public boolean equals(Object fpAST) {
+		if (fpAST instanceof ConstFormalParameter) {
+			ConstFormalParameter cfpAST = (ConstFormalParameter) fpAST;
+			return T.equals(cfpAST.T);
+		} else
+			return false;
+	}
 }

Triangle.Compiler/src/main/java/Triangle/AbstractSyntaxTrees/Declaration.java

@@ -18,10 +18,10 @@ import Triangle.SyntacticAnalyzer.SourcePosition;
 
 public abstract class Declaration extends AST {
 
-  public Declaration(SourcePosition thePosition) {
-    super(thePosition);
-    duplicated = false;
-  }
+	public Declaration(SourcePosition thePosition) {
+		super(thePosition);
+		duplicated = false;
+	}
 
-  public boolean duplicated;
+	public boolean duplicated;
 }

Triangle.Compiler/src/main/java/Triangle/AbstractSyntaxTrees/DotVname.java

@@ -18,17 +18,17 @@ import Triangle.SyntacticAnalyzer.SourcePosition;
 
 public class DotVname extends Vname {
 
-  public DotVname(Vname vAST, Identifier iAST, SourcePosition thePosition) {
-    super(thePosition);
-    V = vAST;
-    I = iAST;
-  }
+	public DotVname(Vname vAST, Identifier iAST, SourcePosition thePosition) {
+		super(thePosition);
+		V = vAST;
+		I = iAST;
+	}
 
-  @Override
-public Object visit(Visitor v, Object o) {
-    return v.visitDotVname(this, o);
-  }
+	@Override
+	public Object visit(Visitor v, Object o) {
+		return v.visitDotVname(this, o);
+	}
 
-  public Identifier I;
-  public Vname V;
+	public Identifier I;
+	public Vname V;
 }

Triangle.Compiler/src/main/java/Triangle/AbstractSyntaxTrees/EmptyActualParameterSequence.java

@@ -18,12 +18,12 @@ import Triangle.SyntacticAnalyzer.SourcePosition;
 
 public class EmptyActualParameterSequence extends ActualParameterSequence {
 
-  public EmptyActualParameterSequence(SourcePosition thePosition) {
-    super(thePosition);
-  }
+	public EmptyActualParameterSequence(SourcePosition thePosition) {
+		super(thePosition);
+	}
 
-  @Override
-public Object visit(Visitor v, Object o) {
-    return v.visitEmptyActualParameterSequence(this, o);
-  }
+	@Override
+	public Object visit(Visitor v, Object o) {
+		return v.visitEmptyActualParameterSequence(this, o);
+	}
 }

Triangle.Compiler/src/main/java/Triangle/AbstractSyntaxTrees/EmptyCommand.java

@@ -18,12 +18,12 @@ import Triangle.SyntacticAnalyzer.SourcePosition;
 
 public class EmptyCommand extends Command {
 
-  public EmptyCommand(SourcePosition thePosition) {
-    super(thePosition);
-  }
+	public EmptyCommand(SourcePosition thePosition) {
+		super(thePosition);
+	}
 
-  @Override
-public Object visit(Visitor v, Object o) {
-    return v.visitEmptyCommand(this, o);
-  }
+	@Override
+	public Object visit(Visitor v, Object o) {
+		return v.visitEmptyCommand(this, o);
+	}
 }

Triangle.Compiler/src/main/java/Triangle/AbstractSyntaxTrees/EmptyExpression.java

@@ -18,12 +18,12 @@ import Triangle.SyntacticAnalyzer.SourcePosition;
 
 public class EmptyExpression extends Expression {
 
-  public EmptyExpression(SourcePosition thePosition) {
-    super(thePosition);
-  }
+	public EmptyExpression(SourcePosition thePosition) {
+		super(thePosition);
+	}
 
-  @Override
-public Object visit(Visitor v, Object o) {
-    return v.visitEmptyExpression(this, o);
-  }
+	@Override
+	public Object visit(Visitor v, Object o) {
+		return v.visitEmptyExpression(this, o);
+	}
 }

Triangle.Compiler/src/main/java/Triangle/AbstractSyntaxTrees/EmptyFormalParameterSequence.java

@@ -18,17 +18,17 @@ import Triangle.SyntacticAnalyzer.SourcePosition;
 
 public class EmptyFormalParameterSequence extends FormalParameterSequence {
 
-  public EmptyFormalParameterSequence(SourcePosition thePosition) {
-    super(thePosition);
-  }
+	public EmptyFormalParameterSequence(SourcePosition thePosition) {
+		super(thePosition);
+	}
 
-  @Override
-public Object visit(Visitor v, Object o) {
-    return v.visitEmptyFormalParameterSequence(this, o);
-  }
+	@Override
+	public Object visit(Visitor v, Object o) {
+		return v.visitEmptyFormalParameterSequence(this, o);
+	}
 
-  @Override
-public boolean equals(Object fpsAST) {
-    return (fpsAST instanceof EmptyFormalParameterSequence);
-  }
+	@Override
+	public boolean equals(Object fpsAST) {
+		return (fpsAST instanceof EmptyFormalParameterSequence);
+	}
 }

Triangle.Compiler/src/main/java/Triangle/AbstractSyntaxTrees/ErrorTypeDenoter.java

@@ -18,17 +18,17 @@ import Triangle.SyntacticAnalyzer.SourcePosition;
 
 public class ErrorTypeDenoter extends TypeDenoter {
 
-  public ErrorTypeDenoter(SourcePosition thePosition) {
-    super(thePosition);
-  }
+	public ErrorTypeDenoter(SourcePosition thePosition) {
+		super(thePosition);
+	}
 
-  @Override
-public Object visit(Visitor v, Object o) {
-    return v.visitErrorTypeDenoter(this, o);
-  }
+	@Override
+	public Object visit(Visitor v, Object o) {
+		return v.visitErrorTypeDenoter(this, o);
+	}
 
-  @Override
-public boolean equals(Object obj) {
-    return true;
-  }
+	@Override
+	public boolean equals(Object obj) {
+		return true;
+	}
 }

Triangle.Compiler/src/main/java/Triangle/AbstractSyntaxTrees/Expression.java

@@ -18,10 +18,10 @@ import Triangle.SyntacticAnalyzer.SourcePosition;
 
 public abstract class Expression extends AST {
 
-  public Expression(SourcePosition thePosition) {
-    super(thePosition);
-    type = null;
-  }
+	public Expression(SourcePosition thePosition) {
+		super(thePosition);
+		type = null;
+	}
 
-  public TypeDenoter type;
+	public TypeDenoter type;
 }

Triangle.Compiler/src/main/java/Triangle/AbstractSyntaxTrees/FieldTypeDenoter.java

@@ -18,10 +18,10 @@ import Triangle.SyntacticAnalyzer.SourcePosition;
 
 public abstract class FieldTypeDenoter extends TypeDenoter {
 
-  public FieldTypeDenoter(SourcePosition thePosition) {
-    super(thePosition);
-  }
+	public FieldTypeDenoter(SourcePosition thePosition) {
+		super(thePosition);
+	}
 
-  @Override
-public abstract boolean equals(Object obj);
+	@Override
+	public abstract boolean equals(Object obj);
 }

Triangle.Compiler/src/main/java/Triangle/AbstractSyntaxTrees/FormalParameter.java

@@ -18,11 +18,11 @@ import Triangle.SyntacticAnalyzer.SourcePosition;
 
 public abstract class FormalParameter extends Declaration {
 
-  public FormalParameter(SourcePosition thePosition) {
-    super(thePosition);
-  }
+	public FormalParameter(SourcePosition thePosition) {
+		super(thePosition);
+	}
 
-  @Override
-public abstract boolean equals(Object fpAST);
+	@Override
+	public abstract boolean equals(Object fpAST);
 
 }

Triangle.Compiler/src/main/java/Triangle/AbstractSyntaxTrees/FormalParameterSequence.java

@@ -18,10 +18,10 @@ import Triangle.SyntacticAnalyzer.SourcePosition;
 
 public abstract class FormalParameterSequence extends AST {
 
-  public FormalParameterSequence(SourcePosition thePosition) {
-    super(thePosition);
-  }
+	public FormalParameterSequence(SourcePosition thePosition) {
+		super(thePosition);
+	}
 
-  @Override
-public abstract boolean equals(Object fpsAST);
+	@Override
+	public abstract boolean equals(Object fpsAST);
 }

Triangle.Compiler/src/main/java/Triangle/AbstractSyntaxTrees/FuncActualParameter.java

@@ -18,15 +18,15 @@ import Triangle.SyntacticAnalyzer.SourcePosition;
 
 public class FuncActualParameter extends ActualParameter {
 
-  public FuncActualParameter(Identifier iAST, SourcePosition thePosition) {
-    super(thePosition);
-    I = iAST;
-  }
+	public FuncActualParameter(Identifier iAST, SourcePosition thePosition) {
+		super(thePosition);
+		I = iAST;
+	}
 
-  @Override
-public Object visit(Visitor v, Object o) {
-    return v.visitFuncActualParameter(this, o);
-  }
+	@Override
+	public Object visit(Visitor v, Object o) {
+		return v.visitFuncActualParameter(this, o);
+	}
 
-  public Identifier I;
+	public Identifier I;
 }

Triangle.Compiler/src/main/java/Triangle/AbstractSyntaxTrees/FuncDeclaration.java

@@ -18,23 +18,22 @@ import Triangle.SyntacticAnalyzer.SourcePosition;
 
 public class FuncDeclaration extends Declaration {
 
-  public FuncDeclaration(Identifier iAST, FormalParameterSequence fpsAST,
-      TypeDenoter tAST, Expression eAST,
-      SourcePosition thePosition) {
-    super(thePosition);
-    I = iAST;
-    FPS = fpsAST;
-    T = tAST;
-    E = eAST;
-  }
+	public FuncDeclaration(Identifier iAST, FormalParameterSequence fpsAST, TypeDenoter tAST, Expression eAST,
+			SourcePosition thePosition) {
+		super(thePosition);
+		I = iAST;
+		FPS = fpsAST;
+		T = tAST;
+		E = eAST;
+	}
 
-  @Override
-public Object visit(Visitor v, Object o) {
-    return v.visitFuncDeclaration(this, o);
-  }
+	@Override
+	public Object visit(Visitor v, Object o) {
+		return v.visitFuncDeclaration(this, o);
+	}
 
-  public Identifier I;
-  public FormalParameterSequence FPS;
-  public TypeDenoter T;
-  public Expression E;
+	public Identifier I;
+	public FormalParameterSequence FPS;
+	public TypeDenoter T;
+	public Expression E;
 }

Triangle.Compiler/src/main/java/Triangle/AbstractSyntaxTrees/FuncFormalParameter.java

@@ -18,29 +18,29 @@ import Triangle.SyntacticAnalyzer.SourcePosition;
 
 public class FuncFormalParameter extends FormalParameter {
 
-  public FuncFormalParameter(Identifier iAST, FormalParameterSequence fpsAST,
-      TypeDenoter tAST, SourcePosition thePosition) {
-    super(thePosition);
-    I = iAST;
-    FPS = fpsAST;
-    T = tAST;
-  }
+	public FuncFormalParameter(Identifier iAST, FormalParameterSequence fpsAST, TypeDenoter tAST,
+			SourcePosition thePosition) {
+		super(thePosition);
+		I = iAST;
+		FPS = fpsAST;
+		T = tAST;
+	}
 
-  @Override
-public Object visit(Visitor v, Object o) {
-    return v.visitFuncFormalParameter(this, o);
-  }
+	@Override
+	public Object visit(Visitor v, Object o) {
+		return v.visitFuncFormalParameter(this, o);
+	}
 
-  @Override
-public boolean equals(Object fpAST) {
-    if (fpAST instanceof FuncFormalParameter) {
-      FuncFormalParameter ffpAST = (FuncFormalParameter) fpAST;
-      return FPS.equals(ffpAST.FPS) && T.equals(ffpAST.T);
-    } else
-      return false;
-  }
+	@Override
+	public boolean equals(Object fpAST) {
+		if (fpAST instanceof FuncFormalParameter) {
+			FuncFormalParameter ffpAST = (FuncFormalParameter) fpAST;
+			return FPS.equals(ffpAST.FPS) && T.equals(ffpAST.T);
+		} else
+			return false;
+	}
 
-  public Identifier I;
-  public FormalParameterSequence FPS;
-  public TypeDenoter T;
+	public Identifier I;
+	public FormalParameterSequence FPS;
+	public TypeDenoter T;
 }

Triangle.Compiler/src/main/java/Triangle/AbstractSyntaxTrees/Identifier.java

@@ -18,17 +18,17 @@ import Triangle.SyntacticAnalyzer.SourcePosition;
 
 public class Identifier extends Terminal {
 
-  public Identifier(String theSpelling, SourcePosition thePosition) {
-    super(theSpelling, thePosition);
-    type = null;
-    decl = null;
-  }
+	public Identifier(String theSpelling, SourcePosition thePosition) {
+		super(theSpelling, thePosition);
+		type = null;
+		decl = null;
+	}
 
-  @Override
-public Object visit(Visitor v, Object o) {
-    return v.visitIdentifier(this, o);
-  }
+	@Override
+	public Object visit(Visitor v, Object o) {
+		return v.visitIdentifier(this, o);
+	}
 
-  public TypeDenoter type;
-  public AST decl; // Either a Declaration or a FieldTypeDenoter
+	public TypeDenoter type;
+	public AST decl; // Either a Declaration or a FieldTypeDenoter
 }

Triangle.Compiler/src/main/java/Triangle/AbstractSyntaxTrees/IfCommand.java

@@ -18,19 +18,18 @@ import Triangle.SyntacticAnalyzer.SourcePosition;
 
 public class IfCommand extends Command {
 
-  public IfCommand(Expression eAST, Command c1AST, Command c2AST,
-      SourcePosition thePosition) {
-    super(thePosition);
-    E = eAST;
-    C1 = c1AST;
-    C2 = c2AST;
-  }
+	public IfCommand(Expression eAST, Command c1AST, Command c2AST, SourcePosition thePosition) {
+		super(thePosition);
+		E = eAST;
+		C1 = c1AST;
+		C2 = c2AST;
+	}
 
-  @Override
-public Object visit(Visitor v, Object o) {
-    return v.visitIfCommand(this, o);
-  }
+	@Override
+	public Object visit(Visitor v, Object o) {
+		return v.visitIfCommand(this, o);
+	}
 
-  public Expression E;
-  public Command C1, C2;
+	public Expression E;
+	public Command C1, C2;
 }

Triangle.Compiler/src/main/java/Triangle/AbstractSyntaxTrees/IfExpression.java

@@ -18,18 +18,17 @@ import Triangle.SyntacticAnalyzer.SourcePosition;
 
 public class IfExpression extends Expression {
 
-  public IfExpression(Expression e1AST, Expression e2AST, Expression e3AST,
-      SourcePosition thePosition) {
-    super(thePosition);
-    E1 = e1AST;
-    E2 = e2AST;
-    E3 = e3AST;
-  }
+	public IfExpression(Expression e1AST, Expression e2AST, Expression e3AST, SourcePosition thePosition) {
+		super(thePosition);
+		E1 = e1AST;
+		E2 = e2AST;
+		E3 = e3AST;
+	}
 
-  @Override
-public Object visit(Visitor v, Object o) {
-    return v.visitIfExpression(this, o);
-  }
+	@Override
+	public Object visit(Visitor v, Object o) {
+		return v.visitIfExpression(this, o);
+	}
 
-  public Expression E1, E2, E3;
+	public Expression E1, E2, E3;
 }

Triangle.Compiler/src/main/java/Triangle/AbstractSyntaxTrees/IntTypeDenoter.java

@@ -18,20 +18,20 @@ import Triangle.SyntacticAnalyzer.SourcePosition;
 
 public class IntTypeDenoter extends TypeDenoter {
 
-  public IntTypeDenoter(SourcePosition thePosition) {
-    super(thePosition);
-  }
+	public IntTypeDenoter(SourcePosition thePosition) {
+		super(thePosition);
+	}
 
-  @Override
-public Object visit(Visitor v, Object o) {
-    return v.visitIntTypeDenoter(this, o);
-  }
+	@Override
+	public Object visit(Visitor v, Object o) {
+		return v.visitIntTypeDenoter(this, o);
+	}
 
-  @Override
-public boolean equals(Object obj) {
-    if (obj != null && obj instanceof ErrorTypeDenoter)
-      return true;
-    else
-      return (obj != null && obj instanceof IntTypeDenoter);
-  }
+	@Override
+	public boolean equals(Object obj) {
+		if (obj != null && obj instanceof ErrorTypeDenoter)
+			return true;
+		else
+			return (obj != null && obj instanceof IntTypeDenoter);
+	}
 }

Triangle.Compiler/src/main/java/Triangle/AbstractSyntaxTrees/IntegerExpression.java

@@ -18,15 +18,15 @@ import Triangle.SyntacticAnalyzer.SourcePosition;
 
 public class IntegerExpression extends Expression {
 
-  public IntegerExpression(IntegerLiteral ilAST, SourcePosition thePosition) {
-    super(thePosition);
-    IL = ilAST;
-  }
+	public IntegerExpression(IntegerLiteral ilAST, SourcePosition thePosition) {
+		super(thePosition);
+		IL = ilAST;
+	}
 
-  @Override
-public Object visit(Visitor v, Object o) {
-    return v.visitIntegerExpression(this, o);
-  }
+	@Override
+	public Object visit(Visitor v, Object o) {
+		return v.visitIntegerExpression(this, o);
+	}
 
-  public IntegerLiteral IL;
+	public IntegerLiteral IL;
 }

Triangle.Compiler/src/main/java/Triangle/AbstractSyntaxTrees/IntegerLiteral.java

@@ -18,13 +18,13 @@ import Triangle.SyntacticAnalyzer.SourcePosition;
 
 public class IntegerLiteral extends Terminal {
 
-  public IntegerLiteral(String theSpelling, SourcePosition thePosition) {
-    super(theSpelling, thePosition);
-  }
+	public IntegerLiteral(String theSpelling, SourcePosition thePosition) {
+		super(theSpelling, thePosition);
+	}
 
-  @Override
-public Object visit(Visitor v, Object o) {
-    return v.visitIntegerLiteral(this, o);
-  }
+	@Override
+	public Object visit(Visitor v, Object o) {
+		return v.visitIntegerLiteral(this, o);
+	}
 
 }

Triangle.Compiler/src/main/java/Triangle/AbstractSyntaxTrees/LetCommand.java

@@ -18,17 +18,17 @@ import Triangle.SyntacticAnalyzer.SourcePosition;
 
 public class LetCommand extends Command {
 
-  public LetCommand(Declaration dAST, Command cAST, SourcePosition thePosition) {
-    super(thePosition);
-    D = dAST;
-    C = cAST;
-  }
+	public LetCommand(Declaration dAST, Command cAST, SourcePosition thePosition) {
+		super(thePosition);
+		D = dAST;
+		C = cAST;
+	}
 
-  @Override
-public Object visit(Visitor v, Object o) {
-    return v.visitLetCommand(this, o);
-  }
+	@Override
+	public Object visit(Visitor v, Object o) {
+		return v.visitLetCommand(this, o);
+	}
 
-  public Declaration D;
-  public Command C;
+	public Declaration D;
+	public Command C;
 }

Triangle.Compiler/src/main/java/Triangle/AbstractSyntaxTrees/LetExpression.java

@@ -18,17 +18,17 @@ import Triangle.SyntacticAnalyzer.SourcePosition;
 
 public class LetExpression extends Expression {
 
-  public LetExpression(Declaration dAST, Expression eAST, SourcePosition thePosition) {
-    super(thePosition);
-    D = dAST;
-    E = eAST;
-  }
+	public LetExpression(Declaration dAST, Expression eAST, SourcePosition thePosition) {
+		super(thePosition);
+		D = dAST;
+		E = eAST;
+	}
 
-  @Override
-public Object visit(Visitor v, Object o) {
-    return v.visitLetExpression(this, o);
-  }
+	@Override
+	public Object visit(Visitor v, Object o) {
+		return v.visitLetExpression(this, o);
+	}
 
-  public Declaration D;
-  public Expression E;
+	public Declaration D;
+	public Expression E;
 }

Triangle.Compiler/src/main/java/Triangle/AbstractSyntaxTrees/MultipleActualParameterSequence.java

@@ -18,18 +18,18 @@ import Triangle.SyntacticAnalyzer.SourcePosition;
 
 public class MultipleActualParameterSequence extends ActualParameterSequence {
 
-  public MultipleActualParameterSequence(ActualParameter apAST, ActualParameterSequence apsAST,
-      SourcePosition thePosition) {
-    super(thePosition);
-    AP = apAST;
-    APS = apsAST;
-  }
+	public MultipleActualParameterSequence(ActualParameter apAST, ActualParameterSequence apsAST,
+			SourcePosition thePosition) {
+		super(thePosition);
+		AP = apAST;
+		APS = apsAST;
+	}
 
-  @Override
-public Object visit(Visitor v, Object o) {
-    return v.visitMultipleActualParameterSequence(this, o);
-  }
+	@Override
+	public Object visit(Visitor v, Object o) {
+		return v.visitMultipleActualParameterSequence(this, o);
+	}
 
-  public ActualParameter AP;
-  public ActualParameterSequence APS;
+	public ActualParameter AP;
+	public ActualParameterSequence APS;
 }

Triangle.Compiler/src/main/java/Triangle/AbstractSyntaxTrees/MultipleArrayAggregate.java

@@ -18,18 +18,17 @@ import Triangle.SyntacticAnalyzer.SourcePosition;
 
 public class MultipleArrayAggregate extends ArrayAggregate {
 
-  public MultipleArrayAggregate(Expression eAST, ArrayAggregate aaAST,
-      SourcePosition thePosition) {
-    super(thePosition);
-    E = eAST;
-    AA = aaAST;
-  }
+	public MultipleArrayAggregate(Expression eAST, ArrayAggregate aaAST, SourcePosition thePosition) {
+		super(thePosition);
+		E = eAST;
+		AA = aaAST;
+	}
 
-  @Override
-public Object visit(Visitor v, Object o) {
-    return v.visitMultipleArrayAggregate(this, o);
-  }
+	@Override
+	public Object visit(Visitor v, Object o) {
+		return v.visitMultipleArrayAggregate(this, o);
+	}
 
-  public Expression E;
-  public ArrayAggregate AA;
+	public Expression E;
+	public ArrayAggregate AA;
 }

Triangle.Compiler/src/main/java/Triangle/AbstractSyntaxTrees/MultipleFieldTypeDenoter.java

@@ -18,31 +18,29 @@ import Triangle.SyntacticAnalyzer.SourcePosition;
 
 public class MultipleFieldTypeDenoter extends FieldTypeDenoter {
 
-  public MultipleFieldTypeDenoter(Identifier iAST, TypeDenoter tAST, FieldTypeDenoter ftAST,
-      SourcePosition thePosition) {
-    super(thePosition);
-    I = iAST;
-    T = tAST;
-    FT = ftAST;
-  }
+	public MultipleFieldTypeDenoter(Identifier iAST, TypeDenoter tAST, FieldTypeDenoter ftAST,
+			SourcePosition thePosition) {
+		super(thePosition);
+		I = iAST;
+		T = tAST;
+		FT = ftAST;
+	}
 
-  @Override
-public Object visit(Visitor v, Object o) {
-    return v.visitMultipleFieldTypeDenoter(this, o);
-  }
+	@Override
+	public Object visit(Visitor v, Object o) {
+		return v.visitMultipleFieldTypeDenoter(this, o);
+	}
 
-  @Override
-public boolean equals(Object obj) {
-    if (obj != null && obj instanceof MultipleFieldTypeDenoter) {
-      MultipleFieldTypeDenoter ft = (MultipleFieldTypeDenoter) obj;
-      return (this.I.spelling.compareTo(ft.I.spelling) == 0) &&
-          this.T.equals(ft.T) &&
-          this.FT.equals(ft.FT);
-    } else
-      return false;
-  }
+	@Override
+	public boolean equals(Object obj) {
+		if (obj != null && obj instanceof MultipleFieldTypeDenoter) {
+			MultipleFieldTypeDenoter ft = (MultipleFieldTypeDenoter) obj;
+			return (this.I.spelling.compareTo(ft.I.spelling) == 0) && this.T.equals(ft.T) && this.FT.equals(ft.FT);
+		} else
+			return false;
+	}
 
-  public Identifier I;
-  public TypeDenoter T;
-  public FieldTypeDenoter FT;
+	public Identifier I;
+	public TypeDenoter T;
+	public FieldTypeDenoter FT;
 }

Triangle.Compiler/src/main/java/Triangle/AbstractSyntaxTrees/MultipleFormalParameterSequence.java

@@ -18,27 +18,27 @@ import Triangle.SyntacticAnalyzer.SourcePosition;
 
 public class MultipleFormalParameterSequence extends FormalParameterSequence {
 
-  public MultipleFormalParameterSequence(FormalParameter fpAST, FormalParameterSequence fpsAST,
-      SourcePosition thePosition) {
-    super(thePosition);
-    FP = fpAST;
-    FPS = fpsAST;
-  }
+	public MultipleFormalParameterSequence(FormalParameter fpAST, FormalParameterSequence fpsAST,
+			SourcePosition thePosition) {
+		super(thePosition);
+		FP = fpAST;
+		FPS = fpsAST;
+	}
 
-  @Override
-public Object visit(Visitor v, Object o) {
-    return v.visitMultipleFormalParameterSequence(this, o);
-  }
+	@Override
+	public Object visit(Visitor v, Object o) {
+		return v.visitMultipleFormalParameterSequence(this, o);
+	}
 
-  @Override
-public boolean equals(Object fpsAST) {
-    if (fpsAST instanceof MultipleFormalParameterSequence) {
-      MultipleFormalParameterSequence mfpsAST = (MultipleFormalParameterSequence) fpsAST;
-      return FP.equals(mfpsAST.FP) && FPS.equals(mfpsAST.FPS);
-    } else
-      return false;
-  }
+	@Override
+	public boolean equals(Object fpsAST) {
+		if (fpsAST instanceof MultipleFormalParameterSequence) {
+			MultipleFormalParameterSequence mfpsAST = (MultipleFormalParameterSequence) fpsAST;
+			return FP.equals(mfpsAST.FP) && FPS.equals(mfpsAST.FPS);
+		} else
+			return false;
+	}
 
-  public FormalParameter FP;
-  public FormalParameterSequence FPS;
+	public FormalParameter FP;
+	public FormalParameterSequence FPS;
 }

Triangle.Compiler/src/main/java/Triangle/AbstractSyntaxTrees/MultipleRecordAggregate.java

@@ -18,20 +18,20 @@ import Triangle.SyntacticAnalyzer.SourcePosition;
 
 public class MultipleRecordAggregate extends RecordAggregate {
 
-  public MultipleRecordAggregate(Identifier iAST, Expression eAST, RecordAggregate raAST,
-      SourcePosition thePosition) {
-    super(thePosition);
-    I = iAST;
-    E = eAST;
-    RA = raAST;
-  }
+	public MultipleRecordAggregate(Identifier iAST, Expression eAST, RecordAggregate raAST,
+			SourcePosition thePosition) {
+		super(thePosition);
+		I = iAST;
+		E = eAST;
+		RA = raAST;
+	}
 
-  @Override
-public Object visit(Visitor v, Object o) {
-    return v.visitMultipleRecordAggregate(this, o);
-  }
+	@Override
+	public Object visit(Visitor v, Object o) {
+		return v.visitMultipleRecordAggregate(this, o);
+	}
 
-  public Identifier I;
-  public Expression E;
-  public RecordAggregate RA;
+	public Identifier I;
+	public Expression E;
+	public RecordAggregate RA;
 }

Triangle.Compiler/src/main/java/Triangle/AbstractSyntaxTrees/Operator.java

@@ -18,15 +18,15 @@ import Triangle.SyntacticAnalyzer.SourcePosition;
 
 public class Operator extends Terminal {
 
-  public Operator(String theSpelling, SourcePosition thePosition) {
-    super(theSpelling, thePosition);
-    decl = null;
-  }
+	public Operator(String theSpelling, SourcePosition thePosition) {
+		super(theSpelling, thePosition);
+		decl = null;
+	}
 
-  @Override
-public Object visit(Visitor v, Object o) {
-    return v.visitOperator(this, o);
-  }
+	@Override
+	public Object visit(Visitor v, Object o) {
+		return v.visitOperator(this, o);
+	}
 
-  public Declaration decl;
+	public Declaration decl;
 }

Triangle.Compiler/src/main/java/Triangle/AbstractSyntaxTrees/ProcActualParameter.java

@@ -18,15 +18,15 @@ import Triangle.SyntacticAnalyzer.SourcePosition;
 
 public class ProcActualParameter extends ActualParameter {
 
-  public ProcActualParameter(Identifier iAST, SourcePosition thePosition) {
-    super(thePosition);
-    I = iAST;
-  }
+	public ProcActualParameter(Identifier iAST, SourcePosition thePosition) {
+		super(thePosition);
+		I = iAST;
+	}
 
-  @Override
-public Object visit(Visitor v, Object o) {
-    return v.visitProcActualParameter(this, o);
-  }
+	@Override
+	public Object visit(Visitor v, Object o) {
+		return v.visitProcActualParameter(this, o);
+	}
 
-  public Identifier I;
+	public Identifier I;
 }

Triangle.Compiler/src/main/java/Triangle/AbstractSyntaxTrees/ProcDeclaration.java

@@ -18,20 +18,19 @@ import Triangle.SyntacticAnalyzer.SourcePosition;
 
 public class ProcDeclaration extends Declaration {
 
-  public ProcDeclaration(Identifier iAST, FormalParameterSequence fpsAST,
-      Command cAST, SourcePosition thePosition) {
-    super(thePosition);
-    I = iAST;
-    FPS = fpsAST;
-    C = cAST;
-  }
+	public ProcDeclaration(Identifier iAST, FormalParameterSequence fpsAST, Command cAST, SourcePosition thePosition) {
+		super(thePosition);
+		I = iAST;
+		FPS = fpsAST;
+		C = cAST;
+	}
 
-  @Override
-public Object visit(Visitor v, Object o) {
-    return v.visitProcDeclaration(this, o);
-  }
+	@Override
+	public Object visit(Visitor v, Object o) {
+		return v.visitProcDeclaration(this, o);
+	}
 
-  public Identifier I;
-  public FormalParameterSequence FPS;
-  public Command C;
+	public Identifier I;
+	public FormalParameterSequence FPS;
+	public Command C;
 }

Triangle.Compiler/src/main/java/Triangle/AbstractSyntaxTrees/ProcFormalParameter.java

@@ -18,27 +18,26 @@ import Triangle.SyntacticAnalyzer.SourcePosition;
 
 public class ProcFormalParameter extends FormalParameter {
 
-  public ProcFormalParameter(Identifier iAST, FormalParameterSequence fpsAST,
-      SourcePosition thePosition) {
-    super(thePosition);
-    I = iAST;
-    FPS = fpsAST;
-  }
+	public ProcFormalParameter(Identifier iAST, FormalParameterSequence fpsAST, SourcePosition thePosition) {
+		super(thePosition);
+		I = iAST;
+		FPS = fpsAST;
+	}
 
-  @Override
-public Object visit(Visitor v, Object o) {
-    return v.visitProcFormalParameter(this, o);
-  }
+	@Override
+	public Object visit(Visitor v, Object o) {
+		return v.visitProcFormalParameter(this, o);
+	}
 
-  public Identifier I;
-  public FormalParameterSequence FPS;
+	public Identifier I;
+	public FormalParameterSequence FPS;
 
-  @Override
-public boolean equals(Object fpAST) {
-    if (fpAST instanceof ProcFormalParameter) {
-      ProcFormalParameter pfpAST = (ProcFormalParameter) fpAST;
-      return FPS.equals(pfpAST.FPS);
-    } else
-      return false;
-  }
+	@Override
+	public boolean equals(Object fpAST) {
+		if (fpAST instanceof ProcFormalParameter) {
+			ProcFormalParameter pfpAST = (ProcFormalParameter) fpAST;
+			return FPS.equals(pfpAST.FPS);
+		} else
+			return false;
+	}
 }

Triangle.Compiler/src/main/java/Triangle/AbstractSyntaxTrees/Program.java

@@ -18,15 +18,15 @@ import Triangle.SyntacticAnalyzer.SourcePosition;
 
 public class Program extends AST {
 
-  public Program(Command cAST, SourcePosition thePosition) {
-    super(thePosition);
-    C = cAST;
-  }
+	public Program(Command cAST, SourcePosition thePosition) {
+		super(thePosition);
+		C = cAST;
+	}
 
-  @Override
-public Object visit(Visitor v, Object o) {
-    return v.visitProgram(this, o);
-  }
+	@Override
+	public Object visit(Visitor v, Object o) {
+		return v.visitProgram(this, o);
+	}
 
-  public Command C;
+	public Command C;
 }

Triangle.Compiler/src/main/java/Triangle/AbstractSyntaxTrees/RecordAggregate.java

@@ -18,10 +18,10 @@ import Triangle.SyntacticAnalyzer.SourcePosition;
 
 public abstract class RecordAggregate extends AST {
 
-  public RecordAggregate(SourcePosition thePosition) {
-    super(thePosition);
-    type = null;
-  }
+	public RecordAggregate(SourcePosition thePosition) {
+		super(thePosition);
+		type = null;
+	}
 
-  public FieldTypeDenoter type;
+	public FieldTypeDenoter type;
 }

Triangle.Compiler/src/main/java/Triangle/AbstractSyntaxTrees/RecordExpression.java

@@ -18,15 +18,15 @@ import Triangle.SyntacticAnalyzer.SourcePosition;
 
 public class RecordExpression extends Expression {
 
-  public RecordExpression(RecordAggregate raAST, SourcePosition thePosition) {
-    super(thePosition);
-    RA = raAST;
-  }
+	public RecordExpression(RecordAggregate raAST, SourcePosition thePosition) {
+		super(thePosition);
+		RA = raAST;
+	}
 
-  @Override
-public Object visit(Visitor v, Object o) {
-    return v.visitRecordExpression(this, o);
-  }
+	@Override
+	public Object visit(Visitor v, Object o) {
+		return v.visitRecordExpression(this, o);
+	}
 
-  public RecordAggregate RA;
+	public RecordAggregate RA;
 }

Triangle.Compiler/src/main/java/Triangle/AbstractSyntaxTrees/RecordTypeDenoter.java

@@ -18,25 +18,25 @@ import Triangle.SyntacticAnalyzer.SourcePosition;
 
 public class RecordTypeDenoter extends TypeDenoter {
 
-  public RecordTypeDenoter(FieldTypeDenoter ftAST, SourcePosition thePosition) {
-    super(thePosition);
-    FT = ftAST;
-  }
+	public RecordTypeDenoter(FieldTypeDenoter ftAST, SourcePosition thePosition) {
+		super(thePosition);
+		FT = ftAST;
+	}
 
-  @Override
-public Object visit(Visitor v, Object o) {
-    return v.visitRecordTypeDenoter(this, o);
-  }
+	@Override
+	public Object visit(Visitor v, Object o) {
+		return v.visitRecordTypeDenoter(this, o);
+	}
 
-  @Override
-public boolean equals(Object obj) {
-    if (obj != null && obj instanceof ErrorTypeDenoter)
-      return true;
-    else if (obj != null && obj instanceof RecordTypeDenoter)
-      return this.FT.equals(((RecordTypeDenoter) obj).FT);
-    else
-      return false;
-  }
+	@Override
+	public boolean equals(Object obj) {
+		if (obj != null && obj instanceof ErrorTypeDenoter)
+			return true;
+		else if (obj != null && obj instanceof RecordTypeDenoter)
+			return this.FT.equals(((RecordTypeDenoter) obj).FT);
+		else
+			return false;
+	}
 
-  public FieldTypeDenoter FT;
+	public FieldTypeDenoter FT;
 }

Triangle.Compiler/src/main/java/Triangle/AbstractSyntaxTrees/SequentialCommand.java

@@ -18,16 +18,16 @@ import Triangle.SyntacticAnalyzer.SourcePosition;
 
 public class SequentialCommand extends Command {
 
-  public SequentialCommand(Command c1AST, Command c2AST, SourcePosition thePosition) {
-    super(thePosition);
-    C1 = c1AST;
-    C2 = c2AST;
-  }
+	public SequentialCommand(Command c1AST, Command c2AST, SourcePosition thePosition) {
+		super(thePosition);
+		C1 = c1AST;
+		C2 = c2AST;
+	}
 
-  @Override
-public Object visit(Visitor v, Object o) {
-    return v.visitSequentialCommand(this, o);
-  }
+	@Override
+	public Object visit(Visitor v, Object o) {
+		return v.visitSequentialCommand(this, o);
+	}
 
-  public Command C1, C2;
+	public Command C1, C2;
 }

Triangle.Compiler/src/main/java/Triangle/AbstractSyntaxTrees/SequentialDeclaration.java

@@ -18,17 +18,16 @@ import Triangle.SyntacticAnalyzer.SourcePosition;
 
 public class SequentialDeclaration extends Declaration {
 
-  public SequentialDeclaration(Declaration d1AST, Declaration d2AST,
-      SourcePosition thePosition) {
-    super(thePosition);
-    D1 = d1AST;
-    D2 = d2AST;
-  }
+	public SequentialDeclaration(Declaration d1AST, Declaration d2AST, SourcePosition thePosition) {
+		super(thePosition);
+		D1 = d1AST;
+		D2 = d2AST;
+	}
 
-  @Override
-public Object visit(Visitor v, Object o) {
-    return v.visitSequentialDeclaration(this, o);
-  }
+	@Override
+	public Object visit(Visitor v, Object o) {
+		return v.visitSequentialDeclaration(this, o);
+	}
 
-  public Declaration D1, D2;
+	public Declaration D1, D2;
 }

Triangle.Compiler/src/main/java/Triangle/AbstractSyntaxTrees/SimpleTypeDenoter.java

@@ -18,20 +18,20 @@ import Triangle.SyntacticAnalyzer.SourcePosition;
 
 public class SimpleTypeDenoter extends TypeDenoter {
 
-  public SimpleTypeDenoter(Identifier iAST, SourcePosition thePosition) {
-    super(thePosition);
-    I = iAST;
-  }
+	public SimpleTypeDenoter(Identifier iAST, SourcePosition thePosition) {
+		super(thePosition);
+		I = iAST;
+	}
 
-  @Override
-public Object visit(Visitor v, Object o) {
-    return v.visitSimpleTypeDenoter(this, o);
-  }
+	@Override
+	public Object visit(Visitor v, Object o) {
+		return v.visitSimpleTypeDenoter(this, o);
+	}
 
-  @Override
-public boolean equals(Object obj) {
-    return false; // should not happen
-  }
+	@Override
+	public boolean equals(Object obj) {
+		return false; // should not happen
+	}
 
-  public Identifier I;
+	public Identifier I;
 }

Triangle.Compiler/src/main/java/Triangle/AbstractSyntaxTrees/SimpleVname.java

@@ -18,15 +18,15 @@ import Triangle.SyntacticAnalyzer.SourcePosition;
 
 public class SimpleVname extends Vname {
 
-  public SimpleVname(Identifier iAST, SourcePosition thePosition) {
-    super(thePosition);
-    I = iAST;
-  }
+	public SimpleVname(Identifier iAST, SourcePosition thePosition) {
+		super(thePosition);
+		I = iAST;
+	}
 
-  @Override
-public Object visit(Visitor v, Object o) {
-    return v.visitSimpleVname(this, o);
-  }
+	@Override
+	public Object visit(Visitor v, Object o) {
+		return v.visitSimpleVname(this, o);
+	}
 
-  public Identifier I;
+	public Identifier I;
 }

Triangle.Compiler/src/main/java/Triangle/AbstractSyntaxTrees/SingleActualParameterSequence.java

@@ -18,16 +18,15 @@ import Triangle.SyntacticAnalyzer.SourcePosition;
 
 public class SingleActualParameterSequence extends ActualParameterSequence {
 
-  public SingleActualParameterSequence(ActualParameter apAST,
-      SourcePosition thePosition) {
-    super(thePosition);
-    AP = apAST;
-  }
+	public SingleActualParameterSequence(ActualParameter apAST, SourcePosition thePosition) {
+		super(thePosition);
+		AP = apAST;
+	}
 
-  @Override
-public Object visit(Visitor v, Object o) {
-    return v.visitSingleActualParameterSequence(this, o);
-  }
+	@Override
+	public Object visit(Visitor v, Object o) {
+		return v.visitSingleActualParameterSequence(this, o);
+	}
 
-  public ActualParameter AP;
+	public ActualParameter AP;
 }

Triangle.Compiler/src/main/java/Triangle/AbstractSyntaxTrees/SingleArrayAggregate.java

@@ -18,16 +18,15 @@ import Triangle.SyntacticAnalyzer.SourcePosition;
 
 public class SingleArrayAggregate extends ArrayAggregate {
 
-  public SingleArrayAggregate(Expression eAST,
-      SourcePosition thePosition) {
-    super(thePosition);
-    E = eAST;
-  }
+	public SingleArrayAggregate(Expression eAST, SourcePosition thePosition) {
+		super(thePosition);
+		E = eAST;
+	}
 
-  @Override
-public Object visit(Visitor v, Object o) {
-    return v.visitSingleArrayAggregate(this, o);
-  }
+	@Override
+	public Object visit(Visitor v, Object o) {
+		return v.visitSingleArrayAggregate(this, o);
+	}
 
-  public Expression E;
+	public Expression E;
 }

Triangle.Compiler/src/main/java/Triangle/AbstractSyntaxTrees/SingleFieldTypeDenoter.java

@@ -18,28 +18,26 @@ import Triangle.SyntacticAnalyzer.SourcePosition;
 
 public class SingleFieldTypeDenoter extends FieldTypeDenoter {
 
-  public SingleFieldTypeDenoter(Identifier iAST, TypeDenoter tAST,
-      SourcePosition thePosition) {
-    super(thePosition);
-    I = iAST;
-    T = tAST;
-  }
+	public SingleFieldTypeDenoter(Identifier iAST, TypeDenoter tAST, SourcePosition thePosition) {
+		super(thePosition);
+		I = iAST;
+		T = tAST;
+	}
 
-  @Override
-public Object visit(Visitor v, Object o) {
-    return v.visitSingleFieldTypeDenoter(this, o);
-  }
+	@Override
+	public Object visit(Visitor v, Object o) {
+		return v.visitSingleFieldTypeDenoter(this, o);
+	}
 
-  @Override
-public boolean equals(Object obj) {
-    if (obj != null && obj instanceof SingleFieldTypeDenoter) {
-      SingleFieldTypeDenoter ft = (SingleFieldTypeDenoter) obj;
-      return (this.I.spelling.compareTo(ft.I.spelling) == 0) &&
-          this.T.equals(ft.T);
-    } else
-      return false;
-  }
+	@Override
+	public boolean equals(Object obj) {
+		if (obj != null && obj instanceof SingleFieldTypeDenoter) {
+			SingleFieldTypeDenoter ft = (SingleFieldTypeDenoter) obj;
+			return (this.I.spelling.compareTo(ft.I.spelling) == 0) && this.T.equals(ft.T);
+		} else
+			return false;
+	}
 
-  public Identifier I;
-  public TypeDenoter T;
+	public Identifier I;
+	public TypeDenoter T;
 }

Triangle.Compiler/src/main/java/Triangle/AbstractSyntaxTrees/SingleFormalParameterSequence.java

@@ -18,25 +18,24 @@ import Triangle.SyntacticAnalyzer.SourcePosition;
 
 public class SingleFormalParameterSequence extends FormalParameterSequence {
 
-  public SingleFormalParameterSequence(FormalParameter fpAST,
-      SourcePosition thePosition) {
-    super(thePosition);
-    FP = fpAST;
-  }
+	public SingleFormalParameterSequence(FormalParameter fpAST, SourcePosition thePosition) {
+		super(thePosition);
+		FP = fpAST;
+	}
 
-  @Override
-public Object visit(Visitor v, Object o) {
-    return v.visitSingleFormalParameterSequence(this, o);
-  }
+	@Override
+	public Object visit(Visitor v, Object o) {
+		return v.visitSingleFormalParameterSequence(this, o);
+	}
 
-  @Override
-public boolean equals(Object fpsAST) {
-    if (fpsAST instanceof SingleFormalParameterSequence) {
-      SingleFormalParameterSequence sfpsAST = (SingleFormalParameterSequence) fpsAST;
-      return FP.equals(sfpsAST.FP);
-    } else
-      return false;
-  }
+	@Override
+	public boolean equals(Object fpsAST) {
+		if (fpsAST instanceof SingleFormalParameterSequence) {
+			SingleFormalParameterSequence sfpsAST = (SingleFormalParameterSequence) fpsAST;
+			return FP.equals(sfpsAST.FP);
+		} else
+			return false;
+	}
 
-  public FormalParameter FP;
+	public FormalParameter FP;
 }

Triangle.Compiler/src/main/java/Triangle/AbstractSyntaxTrees/SingleRecordAggregate.java

@@ -18,18 +18,17 @@ import Triangle.SyntacticAnalyzer.SourcePosition;
 
 public class SingleRecordAggregate extends RecordAggregate {
 
-  public SingleRecordAggregate(Identifier iAST, Expression eAST,
-      SourcePosition thePosition) {
-    super(thePosition);
-    I = iAST;
-    E = eAST;
-  }
+	public SingleRecordAggregate(Identifier iAST, Expression eAST, SourcePosition thePosition) {
+		super(thePosition);
+		I = iAST;
+		E = eAST;
+	}
 
-  @Override
-public Object visit(Visitor v, Object o) {
-    return v.visitSingleRecordAggregate(this, o);
-  }
+	@Override
+	public Object visit(Visitor v, Object o) {
+		return v.visitSingleRecordAggregate(this, o);
+	}
 
-  public Identifier I;
-  public Expression E;
+	public Identifier I;
+	public Expression E;
 }

Triangle.Compiler/src/main/java/Triangle/AbstractSyntaxTrees/SubscriptVname.java

@@ -18,17 +18,17 @@ import Triangle.SyntacticAnalyzer.SourcePosition;
 
 public class SubscriptVname extends Vname {
 
-  public SubscriptVname(Vname vAST, Expression eAST, SourcePosition thePosition) {
-    super(thePosition);
-    V = vAST;
-    E = eAST;
-  }
+	public SubscriptVname(Vname vAST, Expression eAST, SourcePosition thePosition) {
+		super(thePosition);
+		V = vAST;
+		E = eAST;
+	}
 
-  @Override
-public Object visit(Visitor v, Object o) {
-    return v.visitSubscriptVname(this, o);
-  }
+	@Override
+	public Object visit(Visitor v, Object o) {
+		return v.visitSubscriptVname(this, o);
+	}
 
-  public Expression E;
-  public Vname V;
+	public Expression E;
+	public Vname V;
 }

Triangle.Compiler/src/main/java/Triangle/AbstractSyntaxTrees/Terminal.java

@@ -18,10 +18,10 @@ import Triangle.SyntacticAnalyzer.SourcePosition;
 
 abstract public class Terminal extends AST {
 
-  public Terminal(String theSpelling, SourcePosition thePosition) {
-    super(thePosition);
-    spelling = theSpelling;
-  }
+	public Terminal(String theSpelling, SourcePosition thePosition) {
+		super(thePosition);
+		spelling = theSpelling;
+	}
 
-  public String spelling;
+	public String spelling;
 }

Triangle.Compiler/src/main/java/Triangle/AbstractSyntaxTrees/TypeDeclaration.java

@@ -18,18 +18,17 @@ import Triangle.SyntacticAnalyzer.SourcePosition;
 
 public class TypeDeclaration extends Declaration {
 
-  public TypeDeclaration(Identifier iAST, TypeDenoter tAST,
-      SourcePosition thePosition) {
-    super(thePosition);
-    I = iAST;
-    T = tAST;
-  }
+	public TypeDeclaration(Identifier iAST, TypeDenoter tAST, SourcePosition thePosition) {
+		super(thePosition);
+		I = iAST;
+		T = tAST;
+	}
 
-  @Override
-public Object visit(Visitor v, Object o) {
-    return v.visitTypeDeclaration(this, o);
-  }
+	@Override
+	public Object visit(Visitor v, Object o) {
+		return v.visitTypeDeclaration(this, o);
+	}
 
-  public Identifier I;
-  public TypeDenoter T;
+	public Identifier I;
+	public TypeDenoter T;
 }

Triangle.Compiler/src/main/java/Triangle/AbstractSyntaxTrees/TypeDenoter.java

@@ -18,11 +18,11 @@ import Triangle.SyntacticAnalyzer.SourcePosition;
 
 public abstract class TypeDenoter extends AST {
 
-  public TypeDenoter(SourcePosition thePosition) {
-    super(thePosition);
-  }
+	public TypeDenoter(SourcePosition thePosition) {
+		super(thePosition);
+	}
 
-  @Override
-public abstract boolean equals(Object obj);
+	@Override
+	public abstract boolean equals(Object obj);
 
 }

Triangle.Compiler/src/main/java/Triangle/AbstractSyntaxTrees/UnaryExpression.java

@@ -18,18 +18,17 @@ import Triangle.SyntacticAnalyzer.SourcePosition;
 
 public class UnaryExpression extends Expression {
 
-  public UnaryExpression(Operator oAST, Expression eAST,
-      SourcePosition thePosition) {
-    super(thePosition);
-    O = oAST;
-    E = eAST;
-  }
+	public UnaryExpression(Operator oAST, Expression eAST, SourcePosition thePosition) {
+		super(thePosition);
+		O = oAST;
+		E = eAST;
+	}
 
-  @Override
-public Object visit(Visitor v, Object o) {
-    return v.visitUnaryExpression(this, o);
-  }
+	@Override
+	public Object visit(Visitor v, Object o) {
+		return v.visitUnaryExpression(this, o);
+	}
 
-  public Expression E;
-  public Operator O;
+	public Expression E;
+	public Operator O;
 }

Triangle.Compiler/src/main/java/Triangle/AbstractSyntaxTrees/UnaryOperatorDeclaration.java

@@ -18,19 +18,19 @@ import Triangle.SyntacticAnalyzer.SourcePosition;
 
 public class UnaryOperatorDeclaration extends Declaration {
 
-  public UnaryOperatorDeclaration(Operator oAST, TypeDenoter argAST,
-      TypeDenoter resultAST, SourcePosition thePosition) {
-    super(thePosition);
-    O = oAST;
-    ARG = argAST;
-    RES = resultAST;
-  }
+	public UnaryOperatorDeclaration(Operator oAST, TypeDenoter argAST, TypeDenoter resultAST,
+			SourcePosition thePosition) {
+		super(thePosition);
+		O = oAST;
+		ARG = argAST;
+		RES = resultAST;
+	}
 
-  @Override
-public Object visit(Visitor v, Object o) {
-    return v.visitUnaryOperatorDeclaration(this, o);
-  }
+	@Override
+	public Object visit(Visitor v, Object o) {
+		return v.visitUnaryOperatorDeclaration(this, o);
+	}
 
-  public Operator O;
-  public TypeDenoter ARG, RES;
+	public Operator O;
+	public TypeDenoter ARG, RES;
 }

Triangle.Compiler/src/main/java/Triangle/AbstractSyntaxTrees/VarActualParameter.java

@@ -18,15 +18,15 @@ import Triangle.SyntacticAnalyzer.SourcePosition;
 
 public class VarActualParameter extends ActualParameter {
 
-  public VarActualParameter(Vname vAST, SourcePosition thePosition) {
-    super(thePosition);
-    V = vAST;
-  }
+	public VarActualParameter(Vname vAST, SourcePosition thePosition) {
+		super(thePosition);
+		V = vAST;
+	}
 
-  @Override
-public Object visit(Visitor v, Object o) {
-    return v.visitVarActualParameter(this, o);
-  }
+	@Override
+	public Object visit(Visitor v, Object o) {
+		return v.visitVarActualParameter(this, o);
+	}
 
-  public Vname V;
+	public Vname V;
 }

Triangle.Compiler/src/main/java/Triangle/AbstractSyntaxTrees/VarDeclaration.java

@@ -18,18 +18,17 @@ import Triangle.SyntacticAnalyzer.SourcePosition;
 
 public class VarDeclaration extends Declaration {
 
-  public VarDeclaration(Identifier iAST, TypeDenoter tAST,
-      SourcePosition thePosition) {
-    super(thePosition);
-    I = iAST;
-    T = tAST;
-  }
+	public VarDeclaration(Identifier iAST, TypeDenoter tAST, SourcePosition thePosition) {
+		super(thePosition);
+		I = iAST;
+		T = tAST;
+	}
 
-  @Override
-public Object visit(Visitor v, Object o) {
-    return v.visitVarDeclaration(this, o);
-  }
+	@Override
+	public Object visit(Visitor v, Object o) {
+		return v.visitVarDeclaration(this, o);
+	}
 
-  public Identifier I;
-  public TypeDenoter T;
+	public Identifier I;
+	public TypeDenoter T;
 }

Triangle.Compiler/src/main/java/Triangle/AbstractSyntaxTrees/VarFormalParameter.java

@@ -18,27 +18,26 @@ import Triangle.SyntacticAnalyzer.SourcePosition;
 
 public class VarFormalParameter extends FormalParameter {
 
-  public VarFormalParameter(Identifier iAST, TypeDenoter tAST,
-      SourcePosition thePosition) {
-    super(thePosition);
-    I = iAST;
-    T = tAST;
-  }
+	public VarFormalParameter(Identifier iAST, TypeDenoter tAST, SourcePosition thePosition) {
+		super(thePosition);
+		I = iAST;
+		T = tAST;
+	}
 
-  @Override
-public Object visit(Visitor v, Object o) {
-    return v.visitVarFormalParameter(this, o);
-  }
+	@Override
+	public Object visit(Visitor v, Object o) {
+		return v.visitVarFormalParameter(this, o);
+	}
 
-  public Identifier I;
-  public TypeDenoter T;
+	public Identifier I;
+	public TypeDenoter T;
 
-  @Override
-public boolean equals(Object fpAST) {
-    if (fpAST instanceof VarFormalParameter) {
-      VarFormalParameter vfpAST = (VarFormalParameter) fpAST;
-      return T.equals(vfpAST.T);
-    } else
-      return false;
-  }
+	@Override
+	public boolean equals(Object fpAST) {
+		if (fpAST instanceof VarFormalParameter) {
+			VarFormalParameter vfpAST = (VarFormalParameter) fpAST;
+			return T.equals(vfpAST.T);
+		} else
+			return false;
+	}
 }

Triangle.Compiler/src/main/java/Triangle/AbstractSyntaxTrees/Visitor.java

@@ -16,139 +16,139 @@ package Triangle.AbstractSyntaxTrees;
 
 public interface Visitor {
 
-  // Commands
-  public abstract Object visitAssignCommand(AssignCommand ast, Object o);
+	// Commands
+	public abstract Object visitAssignCommand(AssignCommand ast, Object o);
 
-  public abstract Object visitCallCommand(CallCommand ast, Object o);
+	public abstract Object visitCallCommand(CallCommand ast, Object o);
 
-  public abstract Object visitEmptyCommand(EmptyCommand ast, Object o);
+	public abstract Object visitEmptyCommand(EmptyCommand ast, Object o);
 
-  public abstract Object visitIfCommand(IfCommand ast, Object o);
+	public abstract Object visitIfCommand(IfCommand ast, Object o);
 
-  public abstract Object visitLetCommand(LetCommand ast, Object o);
+	public abstract Object visitLetCommand(LetCommand ast, Object o);
 
-  public abstract Object visitSequentialCommand(SequentialCommand ast, Object o);
+	public abstract Object visitSequentialCommand(SequentialCommand ast, Object o);
 
-  public abstract Object visitWhileCommand(WhileCommand ast, Object o);
+	public abstract Object visitWhileCommand(WhileCommand ast, Object o);
 
-  // Expressions
-  public abstract Object visitArrayExpression(ArrayExpression ast, Object o);
+	// Expressions
+	public abstract Object visitArrayExpression(ArrayExpression ast, Object o);
 
-  public abstract Object visitBinaryExpression(BinaryExpression ast, Object o);
+	public abstract Object visitBinaryExpression(BinaryExpression ast, Object o);
 
-  public abstract Object visitCallExpression(CallExpression ast, Object o);
+	public abstract Object visitCallExpression(CallExpression ast, Object o);
 
-  public abstract Object visitCharacterExpression(CharacterExpression ast, Object o);
+	public abstract Object visitCharacterExpression(CharacterExpression ast, Object o);
 
-  public abstract Object visitEmptyExpression(EmptyExpression ast, Object o);
+	public abstract Object visitEmptyExpression(EmptyExpression ast, Object o);
 
-  public abstract Object visitIfExpression(IfExpression ast, Object o);
+	public abstract Object visitIfExpression(IfExpression ast, Object o);
 
-  public abstract Object visitIntegerExpression(IntegerExpression ast, Object o);
+	public abstract Object visitIntegerExpression(IntegerExpression ast, Object o);
 
-  public abstract Object visitLetExpression(LetExpression ast, Object o);
+	public abstract Object visitLetExpression(LetExpression ast, Object o);
 
-  public abstract Object visitRecordExpression(RecordExpression ast, Object o);
+	public abstract Object visitRecordExpression(RecordExpression ast, Object o);
 
-  public abstract Object visitUnaryExpression(UnaryExpression ast, Object o);
+	public abstract Object visitUnaryExpression(UnaryExpression ast, Object o);
 
-  public abstract Object visitVnameExpression(VnameExpression ast, Object o);
+	public abstract Object visitVnameExpression(VnameExpression ast, Object o);
 
-  // Declarations
-  public abstract Object visitBinaryOperatorDeclaration(BinaryOperatorDeclaration ast, Object o);
+	// Declarations
+	public abstract Object visitBinaryOperatorDeclaration(BinaryOperatorDeclaration ast, Object o);
 
-  public abstract Object visitConstDeclaration(ConstDeclaration ast, Object o);
+	public abstract Object visitConstDeclaration(ConstDeclaration ast, Object o);
 
-  public abstract Object visitFuncDeclaration(FuncDeclaration ast, Object o);
+	public abstract Object visitFuncDeclaration(FuncDeclaration ast, Object o);
 
-  public abstract Object visitProcDeclaration(ProcDeclaration ast, Object o);
+	public abstract Object visitProcDeclaration(ProcDeclaration ast, Object o);
 
-  public abstract Object visitSequentialDeclaration(SequentialDeclaration ast, Object o);
+	public abstract Object visitSequentialDeclaration(SequentialDeclaration ast, Object o);
 
-  public abstract Object visitTypeDeclaration(TypeDeclaration ast, Object o);
+	public abstract Object visitTypeDeclaration(TypeDeclaration ast, Object o);
 
-  public abstract Object visitUnaryOperatorDeclaration(UnaryOperatorDeclaration ast, Object o);
+	public abstract Object visitUnaryOperatorDeclaration(UnaryOperatorDeclaration ast, Object o);
 
-  public abstract Object visitVarDeclaration(VarDeclaration ast, Object o);
+	public abstract Object visitVarDeclaration(VarDeclaration ast, Object o);
 
-  // Array Aggregates
-  public abstract Object visitMultipleArrayAggregate(MultipleArrayAggregate ast, Object o);
+	// Array Aggregates
+	public abstract Object visitMultipleArrayAggregate(MultipleArrayAggregate ast, Object o);
 
-  public abstract Object visitSingleArrayAggregate(SingleArrayAggregate ast, Object o);
+	public abstract Object visitSingleArrayAggregate(SingleArrayAggregate ast, Object o);
 
-  // Record Aggregates
-  public abstract Object visitMultipleRecordAggregate(MultipleRecordAggregate ast, Object o);
+	// Record Aggregates
+	public abstract Object visitMultipleRecordAggregate(MultipleRecordAggregate ast, Object o);
 
-  public abstract Object visitSingleRecordAggregate(SingleRecordAggregate ast, Object o);
+	public abstract Object visitSingleRecordAggregate(SingleRecordAggregate ast, Object o);
 
-  // Formal Parameters
-  public abstract Object visitConstFormalParameter(ConstFormalParameter ast, Object o);
+	// Formal Parameters
+	public abstract Object visitConstFormalParameter(ConstFormalParameter ast, Object o);
 
-  public abstract Object visitFuncFormalParameter(FuncFormalParameter ast, Object o);
+	public abstract Object visitFuncFormalParameter(FuncFormalParameter ast, Object o);
 
-  public abstract Object visitProcFormalParameter(ProcFormalParameter ast, Object o);
+	public abstract Object visitProcFormalParameter(ProcFormalParameter ast, Object o);
 
-  public abstract Object visitVarFormalParameter(VarFormalParameter ast, Object o);
+	public abstract Object visitVarFormalParameter(VarFormalParameter ast, Object o);
 
-  public abstract Object visitEmptyFormalParameterSequence(EmptyFormalParameterSequence ast, Object o);
+	public abstract Object visitEmptyFormalParameterSequence(EmptyFormalParameterSequence ast, Object o);
 
-  public abstract Object visitMultipleFormalParameterSequence(MultipleFormalParameterSequence ast, Object o);
+	public abstract Object visitMultipleFormalParameterSequence(MultipleFormalParameterSequence ast, Object o);
 
-  public abstract Object visitSingleFormalParameterSequence(SingleFormalParameterSequence ast, Object o);
+	public abstract Object visitSingleFormalParameterSequence(SingleFormalParameterSequence ast, Object o);
 
-  // Actual Parameters
-  public abstract Object visitConstActualParameter(ConstActualParameter ast, Object o);
+	// Actual Parameters
+	public abstract Object visitConstActualParameter(ConstActualParameter ast, Object o);
 
-  public abstract Object visitFuncActualParameter(FuncActualParameter ast, Object o);
+	public abstract Object visitFuncActualParameter(FuncActualParameter ast, Object o);
 
-  public abstract Object visitProcActualParameter(ProcActualParameter ast, Object o);
+	public abstract Object visitProcActualParameter(ProcActualParameter ast, Object o);
 
-  public abstract Object visitVarActualParameter(VarActualParameter ast, Object o);
+	public abstract Object visitVarActualParameter(VarActualParameter ast, Object o);
 
-  public abstract Object visitEmptyActualParameterSequence(EmptyActualParameterSequence ast, Object o);
+	public abstract Object visitEmptyActualParameterSequence(EmptyActualParameterSequence ast, Object o);
 
-  public abstract Object visitMultipleActualParameterSequence(MultipleActualParameterSequence ast, Object o);
+	public abstract Object visitMultipleActualParameterSequence(MultipleActualParameterSequence ast, Object o);
 
-  public abstract Object visitSingleActualParameterSequence(SingleActualParameterSequence ast, Object o);
+	public abstract Object visitSingleActualParameterSequence(SingleActualParameterSequence ast, Object o);
 
-  // Type Denoters
-  public abstract Object visitAnyTypeDenoter(AnyTypeDenoter ast, Object o);
+	// Type Denoters
+	public abstract Object visitAnyTypeDenoter(AnyTypeDenoter ast, Object o);
 
-  public abstract Object visitArrayTypeDenoter(ArrayTypeDenoter ast, Object o);
+	public abstract Object visitArrayTypeDenoter(ArrayTypeDenoter ast, Object o);
 
-  public abstract Object visitBoolTypeDenoter(BoolTypeDenoter ast, Object o);
+	public abstract Object visitBoolTypeDenoter(BoolTypeDenoter ast, Object o);
 
-  public abstract Object visitCharTypeDenoter(CharTypeDenoter ast, Object o);
+	public abstract Object visitCharTypeDenoter(CharTypeDenoter ast, Object o);
 
-  public abstract Object visitErrorTypeDenoter(ErrorTypeDenoter ast, Object o);
+	public abstract Object visitErrorTypeDenoter(ErrorTypeDenoter ast, Object o);
 
-  public abstract Object visitSimpleTypeDenoter(SimpleTypeDenoter ast, Object o);
+	public abstract Object visitSimpleTypeDenoter(SimpleTypeDenoter ast, Object o);
 
-  public abstract Object visitIntTypeDenoter(IntTypeDenoter ast, Object o);
+	public abstract Object visitIntTypeDenoter(IntTypeDenoter ast, Object o);
 
-  public abstract Object visitRecordTypeDenoter(RecordTypeDenoter ast, Object o);
+	public abstract Object visitRecordTypeDenoter(RecordTypeDenoter ast, Object o);
 
-  public abstract Object visitMultipleFieldTypeDenoter(MultipleFieldTypeDenoter ast, Object o);
+	public abstract Object visitMultipleFieldTypeDenoter(MultipleFieldTypeDenoter ast, Object o);
 
-  public abstract Object visitSingleFieldTypeDenoter(SingleFieldTypeDenoter ast, Object o);
+	public abstract Object visitSingleFieldTypeDenoter(SingleFieldTypeDenoter ast, Object o);
 
-  // Literals, Identifiers and Operators
-  public abstract Object visitCharacterLiteral(CharacterLiteral ast, Object o);
+	// Literals, Identifiers and Operators
+	public abstract Object visitCharacterLiteral(CharacterLiteral ast, Object o);
 
-  public abstract Object visitIdentifier(Identifier ast, Object o);
+	public abstract Object visitIdentifier(Identifier ast, Object o);
 
-  public abstract Object visitIntegerLiteral(IntegerLiteral ast, Object o);
+	public abstract Object visitIntegerLiteral(IntegerLiteral ast, Object o);
 
-  public abstract Object visitOperator(Operator ast, Object o);
+	public abstract Object visitOperator(Operator ast, Object o);
 
-  // Value-or-variable names
-  public abstract Object visitDotVname(DotVname ast, Object o);
+	// Value-or-variable names
+	public abstract Object visitDotVname(DotVname ast, Object o);
 
-  public abstract Object visitSimpleVname(SimpleVname ast, Object o);
+	public abstract Object visitSimpleVname(SimpleVname ast, Object o);
 
-  public abstract Object visitSubscriptVname(SubscriptVname ast, Object o);
+	public abstract Object visitSubscriptVname(SubscriptVname ast, Object o);
 
-  // Programs
-  public abstract Object visitProgram(Program ast, Object o);
+	// Programs
+	public abstract Object visitProgram(Program ast, Object o);
 
 }

Triangle.Compiler/src/main/java/Triangle/AbstractSyntaxTrees/Vname.java

@@ -18,13 +18,13 @@ import Triangle.SyntacticAnalyzer.SourcePosition;
 
 public abstract class Vname extends AST {
 
-  public Vname(SourcePosition thePosition) {
-    super(thePosition);
-    variable = false;
-    type = null;
-  }
+	public Vname(SourcePosition thePosition) {
+		super(thePosition);
+		variable = false;
+		type = null;
+	}
 
-  public boolean variable, indexed;
-  public int offset;
-  public TypeDenoter type;
+	public boolean variable, indexed;
+	public int offset;
+	public TypeDenoter type;
 }

Triangle.Compiler/src/main/java/Triangle/AbstractSyntaxTrees/VnameExpression.java

@@ -18,15 +18,15 @@ import Triangle.SyntacticAnalyzer.SourcePosition;
 
 public class VnameExpression extends Expression {
 
-  public VnameExpression(Vname vAST, SourcePosition thePosition) {
-    super(thePosition);
-    V = vAST;
-  }
+	public VnameExpression(Vname vAST, SourcePosition thePosition) {
+		super(thePosition);
+		V = vAST;
+	}
 
-  @Override
-public Object visit(Visitor v, Object o) {
-    return v.visitVnameExpression(this, o);
-  }
+	@Override
+	public Object visit(Visitor v, Object o) {
+		return v.visitVnameExpression(this, o);
+	}
 
-  public Vname V;
+	public Vname V;
 }

Triangle.Compiler/src/main/java/Triangle/AbstractSyntaxTrees/WhileCommand.java

@@ -18,17 +18,17 @@ import Triangle.SyntacticAnalyzer.SourcePosition;
 
 public class WhileCommand extends Command {
 
-  public WhileCommand(Expression eAST, Command cAST, SourcePosition thePosition) {
-    super(thePosition);
-    E = eAST;
-    C = cAST;
-  }
+	public WhileCommand(Expression eAST, Command cAST, SourcePosition thePosition) {
+		super(thePosition);
+		E = eAST;
+		C = cAST;
+	}
 
-  @Override
-public Object visit(Visitor v, Object o) {
-    return v.visitWhileCommand(this, o);
-  }
+	@Override
+	public Object visit(Visitor v, Object o) {
+		return v.visitWhileCommand(this, o);
+	}
 
-  public Expression E;
-  public Command C;
+	public Expression E;
+	public Command C;
 }

Triangle.Compiler/src/main/java/Triangle/CodeGenerator/EqualityRoutine.java

@@ -16,15 +16,15 @@ package Triangle.CodeGenerator;
 
 public class EqualityRoutine extends RuntimeEntity {
 
-  public EqualityRoutine() {
-    super();
-  }
+	public EqualityRoutine() {
+		super();
+	}
 
-  public EqualityRoutine(int size, int displacement) {
-    super(size);
-    this.displacement = displacement;
-  }
+	public EqualityRoutine(int size, int displacement) {
+		super(size);
+		this.displacement = displacement;
+	}
 
-  public int displacement;
+	public int displacement;
 
 }

Triangle.Compiler/src/main/java/Triangle/CodeGenerator/Field.java

@@ -16,16 +16,16 @@ package Triangle.CodeGenerator;
 
 public class Field extends RuntimeEntity {
 
-  public Field() {
-    super();
-    fieldOffset = 0;
-  }
+	public Field() {
+		super();
+		fieldOffset = 0;
+	}
 
-  public Field(int size, int fieldOffset) {
-    super(size);
-    this.fieldOffset = fieldOffset;
-  }
+	public Field(int size, int fieldOffset) {
+		super(size);
+		this.fieldOffset = fieldOffset;
+	}
 
-  public int fieldOffset;
+	public int fieldOffset;
 
 }

Triangle.Compiler/src/main/java/Triangle/CodeGenerator/Frame.java

@@ -16,31 +16,31 @@ package Triangle.CodeGenerator;
 
 public class Frame {
 
-  public Frame() {
-    this.level = 0;
-    this.size = 0;
-  }
-
-  public Frame(int level, Integer size) {
-    this.level = level;
-    this.size = size.intValue();
-  }
-
-  public Frame(int level, int size) {
-    this.level = level;
-    this.size = size;
-  }
-
-  public Frame(Frame frame, int sizeIncrement) {
-    this.level = frame.level;
-    this.size = frame.size + sizeIncrement;
-  }
-
-  public Frame(Frame frame, Integer sizeIncrement) {
-    this.level = frame.level;
-    this.size = frame.size + sizeIncrement.intValue();
-  }
-
-  protected int level;
-  protected int size;
+	public Frame() {
+		this.level = 0;
+		this.size = 0;
+	}
+
+	public Frame(int level, Integer size) {
+		this.level = level;
+		this.size = size.intValue();
+	}
+
+	public Frame(int level, int size) {
+		this.level = level;
+		this.size = size;
+	}
+
+	public Frame(Frame frame, int sizeIncrement) {
+		this.level = frame.level;
+		this.size = frame.size + sizeIncrement;
+	}
+
+	public Frame(Frame frame, Integer sizeIncrement) {
+		this.level = frame.level;
+		this.size = frame.size + sizeIncrement.intValue();
+	}
+
+	protected int level;
+	protected int size;
 }

Triangle.Compiler/src/main/java/Triangle/CodeGenerator/KnownAddress.java

@@ -16,16 +16,16 @@ package Triangle.CodeGenerator;
 
 public class KnownAddress extends RuntimeEntity {
 
-  public KnownAddress() {
-    super();
-    address = null;
-  }
+	public KnownAddress() {
+		super();
+		address = null;
+	}
 
-  public KnownAddress(int size, int level, int displacement) {
-    super(size);
-    address = new ObjectAddress(level, displacement);
-  }
+	public KnownAddress(int size, int level, int displacement) {
+		super(size);
+		address = new ObjectAddress(level, displacement);
+	}
 
-  public ObjectAddress address;
+	public ObjectAddress address;
 
 }

Triangle.Compiler/src/main/java/Triangle/CodeGenerator/KnownRoutine.java

@@ -16,16 +16,16 @@ package Triangle.CodeGenerator;
 
 public class KnownRoutine extends RuntimeEntity {
 
-  public KnownRoutine() {
-    super();
-    address = null;
-  }
+	public KnownRoutine() {
+		super();
+		address = null;
+	}
 
-  public KnownRoutine(int size, int level, int displacement) {
-    super(size);
-    address = new ObjectAddress(level, displacement);
-  }
+	public KnownRoutine(int size, int level, int displacement) {
+		super(size);
+		address = new ObjectAddress(level, displacement);
+	}
 
-  public ObjectAddress address;
+	public ObjectAddress address;
 
 }

Triangle.Compiler/src/main/java/Triangle/CodeGenerator/KnownValue.java

@@ -16,16 +16,16 @@ package Triangle.CodeGenerator;
 
 public class KnownValue extends RuntimeEntity {
 
-  public KnownValue() {
-    super();
-    value = 0;
-  }
+	public KnownValue() {
+		super();
+		value = 0;
+	}
 
-  public KnownValue(int size, int value) {
-    super(size);
-    this.value = value;
-  }
+	public KnownValue(int size, int value) {
+		super(size);
+		this.value = value;
+	}
 
-  public int value;
+	public int value;
 
 }

Triangle.Compiler/src/main/java/Triangle/CodeGenerator/ObjectAddress.java

@@ -16,11 +16,11 @@ package Triangle.CodeGenerator;
 
 public final class ObjectAddress {
 
-  public ObjectAddress(int level, int displacement) {
-    this.level = level;
-    this.displacement = displacement;
-  }
+	public ObjectAddress(int level, int displacement) {
+		this.level = level;
+		this.displacement = displacement;
+	}
 
-  public int level, displacement;
+	public int level, displacement;
 
 }

Triangle.Compiler/src/main/java/Triangle/CodeGenerator/PrimitiveRoutine.java

@@ -16,16 +16,16 @@ package Triangle.CodeGenerator;
 
 public class PrimitiveRoutine extends RuntimeEntity {
 
-  public PrimitiveRoutine() {
-    super();
-    displacement = 0;
-  }
+	public PrimitiveRoutine() {
+		super();
+		displacement = 0;
+	}
 
-  public PrimitiveRoutine(int size, int displacement) {
-    super(size);
-    this.displacement = displacement;
-  }
+	public PrimitiveRoutine(int size, int displacement) {
+		super(size);
+		this.displacement = displacement;
+	}
 
-  public int displacement;
+	public int displacement;
 
 }

Triangle.Compiler/src/main/java/Triangle/CodeGenerator/RuntimeEntity.java

@@ -18,16 +18,16 @@ package Triangle.CodeGenerator;
 
 public abstract class RuntimeEntity {
 
-  public final static int maxRoutineLevel = 7;
+	public final static int maxRoutineLevel = 7;
 
-  public RuntimeEntity() {
-    size = 0;
-  }
+	public RuntimeEntity() {
+		size = 0;
+	}
 
-  public RuntimeEntity(int size) {
-    this.size = size;
-  }
+	public RuntimeEntity(int size) {
+		this.size = size;
+	}
 
-  public int size;
+	public int size;
 
 }

Triangle.Compiler/src/main/java/Triangle/CodeGenerator/TypeRepresentation.java

@@ -16,8 +16,8 @@ package Triangle.CodeGenerator;
 
 public class TypeRepresentation extends RuntimeEntity {
 
-  public TypeRepresentation(int size) {
-    super(size);
-  }
+	public TypeRepresentation(int size) {
+		super(size);
+	}
 
 }

Triangle.Compiler/src/main/java/Triangle/CodeGenerator/UnknownAddress.java

@@ -16,16 +16,16 @@ package Triangle.CodeGenerator;
 
 public class UnknownAddress extends RuntimeEntity {
 
-  public UnknownAddress() {
-    super();
-    address = null;
-  }
+	public UnknownAddress() {
+		super();
+		address = null;
+	}
 
-  public UnknownAddress(int size, int level, int displacement) {
-    super(size);
-    address = new ObjectAddress(level, displacement);
-  }
+	public UnknownAddress(int size, int level, int displacement) {
+		super(size);
+		address = new ObjectAddress(level, displacement);
+	}
 
-  public ObjectAddress address;
+	public ObjectAddress address;
 
 }

Triangle.Compiler/src/main/java/Triangle/CodeGenerator/UnknownRoutine.java

@@ -16,16 +16,16 @@ package Triangle.CodeGenerator;
 
 public class UnknownRoutine extends RuntimeEntity {
 
-  public UnknownRoutine() {
-    super();
-    address = null;
-  }
+	public UnknownRoutine() {
+		super();
+		address = null;
+	}
 
-  public UnknownRoutine(int size, int level, int displacement) {
-    super(size);
-    address = new ObjectAddress(level, displacement);
-  }
+	public UnknownRoutine(int size, int level, int displacement) {
+		super(size);
+		address = new ObjectAddress(level, displacement);
+	}
 
-  public ObjectAddress address;
+	public ObjectAddress address;
 
 }

Triangle.Compiler/src/main/java/Triangle/CodeGenerator/UnknownValue.java

@@ -16,16 +16,16 @@ package Triangle.CodeGenerator;
 
 public class UnknownValue extends RuntimeEntity {
 
-  public UnknownValue() {
-    super();
-    address = null;
-  }
+	public UnknownValue() {
+		super();
+		address = null;
+	}
 
-  public UnknownValue(int size, int level, int displacement) {
-    super(size);
-    address = new ObjectAddress(level, displacement);
-  }
+	public UnknownValue(int size, int level, int displacement) {
+		super(size);
+		address = new ObjectAddress(level, displacement);
+	}
 
-  public ObjectAddress address;
+	public ObjectAddress address;
 
 }

Triangle.Compiler/src/main/java/Triangle/Compiler.java

@@ -30,98 +30,94 @@ import Triangle.TreeDrawer.Drawer;
  */
 public class Compiler {
 
-    /** The filename for the object program, normally obj.tam. */
-    static String objectName = "obj.tam";
-
-    private static Scanner scanner;
-    private static Parser parser;
-    private static Checker checker;
-    private static Encoder encoder;
-    private static ErrorReporter reporter;
-    private static Drawer drawer;
-
-    /** The AST representing the source program. */
-    private static Program theAST;
-
-    /**
-     * Compile the source program to TAM machine code.
-     *
-     * @param sourceName   the name of the file containing the
-     *                     source program.
-     * @param objectName   the name of the file containing the
-     *                     object program.
-     * @param showingAST   true iff the AST is to be displayed after
-     *                     contextual analysis (not currently implemented).
-     * @param showingTable true iff the object description details are to
-     *                     be displayed during code generation (not
-     *                     currently implemented).
-     * @return true iff the source program is free of compile-time errors,
-     *         otherwise false.
-     */
-    static boolean compileProgram(String sourceName, String objectName,
-            boolean showingAST, boolean showingTable) {
-
-        System.out.println("********** " +
-                "Triangle Compiler (Java Version 2.1)" +
-                " **********");
-
-        System.out.println("Syntactic Analysis ...");
-        SourceFile source = new SourceFile(sourceName);
-
-        if (source == null) {
-            System.out.println("Can't access source file " + sourceName);
-            System.exit(1);
-        }
-
-        scanner = new Scanner(source);
-        reporter = new ErrorReporter();
-        parser = new Parser(scanner, reporter);
-        checker = new Checker(reporter);
-        encoder = new Encoder(reporter);
-        drawer = new Drawer();
-
-        // scanner.enableDebugging();
-        theAST = parser.parseProgram(); // 1st pass
-        if (reporter.numErrors == 0) {
-            // if (showingAST) {
-            // drawer.draw(theAST);
-            // }
-            System.out.println("Contextual Analysis ...");
-            checker.check(theAST); // 2nd pass
-            if (showingAST) {
-                drawer.draw(theAST);
-            }
-            if (reporter.numErrors == 0) {
-                System.out.println("Code Generation ...");
-                encoder.encodeRun(theAST, showingTable); // 3rd pass
-            }
-        }
-
-        boolean successful = (reporter.numErrors == 0);
-        if (successful) {
-            encoder.saveObjectProgram(objectName);
-            System.out.println("Compilation was successful.");
-        } else {
-            System.out.println("Compilation was unsuccessful.");
-        }
-        return successful;
-    }
-
-    /**
-     * Triangle compiler main program.
-     *
-     * @param args the only command-line argument to the program specifies
-     *             the source filename.
-     */
-    public static void main(String[] args) {
-        boolean compiledOK;
-
-        if (args.length != 1) {
-            System.out.println("Usage: tc filename");
-            System.exit(1);
-        }
-
-        String sourceName = args[0];
-        compiledOK = compileProgram(sourceName, objectName, false, false);
-    }
+	/** The filename for the object program, normally obj.tam. */
+	static String objectName = "obj.tam";
+
+	private static Scanner scanner;
+	private static Parser parser;
+	private static Checker checker;
+	private static Encoder encoder;
+	private static ErrorReporter reporter;
+	private static Drawer drawer;
+
+	/** The AST representing the source program. */
+	private static Program theAST;
+
+	/**
+	 * Compile the source program to TAM machine code.
+	 *
+	 * @param sourceName   the name of the file containing the source program.
+	 * @param objectName   the name of the file containing the object program.
+	 * @param showingAST   true iff the AST is to be displayed after contextual
+	 *                     analysis (not currently implemented).
+	 * @param showingTable true iff the object description details are to be
+	 *                     displayed during code generation (not currently
+	 *                     implemented).
+	 * @return true iff the source program is free of compile-time errors, otherwise
+	 *         false.
+	 */
+	static boolean compileProgram(String sourceName, String objectName, boolean showingAST, boolean showingTable) {
+
+		System.out.println("********** " + "Triangle Compiler (Java Version 2.1)" + " **********");
+
+		System.out.println("Syntactic Analysis ...");
+		SourceFile source = SourceFile.ofPath(sourceName);
+
+		if (source == null) {
+			System.out.println("Can't access source file " + sourceName);
+			System.exit(1);
+		}
+
+		scanner = new Scanner(source);
+		reporter = new ErrorReporter();
+		parser = new Parser(scanner, reporter);
+		checker = new Checker(reporter);
+		encoder = new Encoder(reporter);
+		drawer = new Drawer();
+
+		// scanner.enableDebugging();
+		theAST = parser.parseProgram(); // 1st pass
+		if (reporter.numErrors == 0) {
+			// if (showingAST) {
+			// drawer.draw(theAST);
+			// }
+			System.out.println("Contextual Analysis ...");
+			checker.check(theAST); // 2nd pass
+			if (showingAST) {
+				drawer.draw(theAST);
+			}
+			if (reporter.numErrors == 0) {
+				System.out.println("Code Generation ...");
+				encoder.encodeRun(theAST, showingTable); // 3rd pass
+			}
+		}
+
+		boolean successful = (reporter.numErrors == 0);
+		if (successful) {
+			encoder.saveObjectProgram(objectName);
+			System.out.println("Compilation was successful.");
+		} else {
+			System.out.println("Compilation was unsuccessful.");
+		}
+		return successful;
+	}
+
+	/**
+	 * Triangle compiler main program.
+	 *
+	 * @param args the only command-line argument to the program specifies the
+	 *             source filename.
+	 */
+	public static void main(String[] args) {
+
+		if (args.length != 1) {
+			System.out.println("Usage: tc filename");
+			System.exit(1);
+		}
+
+		String sourceName = args[0];
+		var compiledOK = compileProgram(sourceName, objectName, false, false);
+
+		System.exit(compiledOK ? 0 : 1);
+	}
 }

Triangle.Compiler/src/main/java/Triangle/ContextualAnalyzer/IdEntry.java

@@ -18,16 +18,16 @@ import Triangle.AbstractSyntaxTrees.Declaration;
 
 public class IdEntry {
 
-  protected String id;
-  protected Declaration attr;
-  protected int level;
-  protected IdEntry previous;
+	protected String id;
+	protected Declaration attr;
+	protected int level;
+	protected IdEntry previous;
 
-  IdEntry(String id, Declaration attr, int level, IdEntry previous) {
-    this.id = id;
-    this.attr = attr;
-    this.level = level;
-    this.previous = previous;
-  }
+	IdEntry(String id, Declaration attr, int level, IdEntry previous) {
+		this.id = id;
+		this.attr = attr;
+		this.level = level;
+		this.previous = previous;
+	}
 
 }

Triangle.Compiler/src/main/java/Triangle/ContextualAnalyzer/IdentificationTable.java

@@ -18,91 +18,91 @@ import Triangle.AbstractSyntaxTrees.Declaration;
 
 public final class IdentificationTable {
 
-  private int level;
-  private IdEntry latest;
-
-  public IdentificationTable() {
-    level = 0;
-    latest = null;
-  }
-
-  // Opens a new level in the identification table, 1 higher than the
-  // current topmost level.
-
-  public void openScope() {
-
-    level++;
-  }
-
-  // Closes the topmost level in the identification table, discarding
-  // all entries belonging to that level.
-
-  public void closeScope() {
-
-    IdEntry entry, local;
-
-    // Presumably, idTable.level > 0.
-    entry = this.latest;
-    while (entry.level == this.level) {
-      local = entry;
-      entry = local.previous;
-    }
-    this.level--;
-    this.latest = entry;
-  }
-
-  // Makes a new entry in the identification table for the given identifier
-  // and attribute. The new entry belongs to the current level.
-  // duplicated is set to to true iff there is already an entry for the
-  // same identifier at the current level.
-
-  public void enter(String id, Declaration attr) {
-
-    IdEntry entry = this.latest;
-    boolean present = false, searching = true;
-
-    // Check for duplicate entry ...
-    while (searching) {
-      if (entry == null || entry.level < this.level)
-        searching = false;
-      else if (entry.id.equals(id)) {
-        present = true;
-        searching = false;
-      } else
-        entry = entry.previous;
-    }
-
-    attr.duplicated = present;
-    // Add new entry ...
-    entry = new IdEntry(id, attr, this.level, this.latest);
-    this.latest = entry;
-  }
-
-  // Finds an entry for the given identifier in the identification table,
-  // if any. If there are several entries for that identifier, finds the
-  // entry at the highest level, in accordance with the scope rules.
-  // Returns null iff no entry is found.
-  // otherwise returns the attribute field of the entry found.
-
-  public Declaration retrieve(String id) {
-
-    IdEntry entry;
-    Declaration attr = null;
-    boolean present = false, searching = true;
-
-    entry = this.latest;
-    while (searching) {
-      if (entry == null)
-        searching = false;
-      else if (entry.id.equals(id)) {
-        present = true;
-        searching = false;
-        attr = entry.attr;
-      } else
-        entry = entry.previous;
-    }
-
-    return attr;
-  }
+	private int level;
+	private IdEntry latest;
+
+	public IdentificationTable() {
+		level = 0;
+		latest = null;
+	}
+
+	// Opens a new level in the identification table, 1 higher than the
+	// current topmost level.
+
+	public void openScope() {
+
+		level++;
+	}
+
+	// Closes the topmost level in the identification table, discarding
+	// all entries belonging to that level.
+
+	public void closeScope() {
+
+		IdEntry entry, local;
+
+		// Presumably, idTable.level > 0.
+		entry = this.latest;
+		while (entry.level == this.level) {
+			local = entry;
+			entry = local.previous;
+		}
+		this.level--;
+		this.latest = entry;
+	}
+
+	// Makes a new entry in the identification table for the given identifier
+	// and attribute. The new entry belongs to the current level.
+	// duplicated is set to to true iff there is already an entry for the
+	// same identifier at the current level.
+
+	public void enter(String id, Declaration attr) {
+
+		IdEntry entry = this.latest;
+		boolean present = false, searching = true;
+
+		// Check for duplicate entry ...
+		while (searching) {
+			if (entry == null || entry.level < this.level)
+				searching = false;
+			else if (entry.id.equals(id)) {
+				present = true;
+				searching = false;
+			} else
+				entry = entry.previous;
+		}
+
+		attr.duplicated = present;
+		// Add new entry ...
+		entry = new IdEntry(id, attr, this.level, this.latest);
+		this.latest = entry;
+	}
+
+	// Finds an entry for the given identifier in the identification table,
+	// if any. If there are several entries for that identifier, finds the
+	// entry at the highest level, in accordance with the scope rules.
+	// Returns null iff no entry is found.
+	// otherwise returns the attribute field of the entry found.
+
+	public Declaration retrieve(String id) {
+
+		IdEntry entry;
+		Declaration attr = null;
+		boolean present = false, searching = true;
+
+		entry = this.latest;
+		while (searching) {
+			if (entry == null)
+				searching = false;
+			else if (entry.id.equals(id)) {
+				present = true;
+				searching = false;
+				attr = entry.attr;
+			} else
+				entry = entry.previous;
+		}
+
+		return attr;
+	}
 
 }

Triangle.Compiler/src/main/java/Triangle/ErrorReporter.java

@@ -18,25 +18,25 @@ import Triangle.SyntacticAnalyzer.SourcePosition;
 
 public class ErrorReporter {
 
-  int numErrors;
-
-  ErrorReporter() {
-    numErrors = 0;
-  }
-
-  public void reportError(String message, String tokenName, SourcePosition pos) {
-    System.out.print("ERROR: ");
-
-    for (int p = 0; p < message.length(); p++)
-      if (message.charAt(p) == '%')
-        System.out.print(tokenName);
-      else
-        System.out.print(message.charAt(p));
-    System.out.println(" " + pos.start + ".." + pos.finish);
-    numErrors++;
-  }
-
-  public void reportRestriction(String message) {
-    System.out.println("RESTRICTION: " + message);
-  }
+	int numErrors;
+
+	ErrorReporter() {
+		numErrors = 0;
+	}
+
+	public void reportError(String message, String tokenName, SourcePosition pos) {
+		System.out.print("ERROR: ");
+
+		for (int p = 0; p < message.length(); p++)
+			if (message.charAt(p) == '%')
+				System.out.print(tokenName);
+			else
+				System.out.print(message.charAt(p));
+		System.out.println(" " + pos.start + ".." + pos.finish);
+		numErrors++;
+	}
+
+	public void reportRestriction(String message) {
+		System.out.println("RESTRICTION: " + message);
+	}
 }