Add aliases for several functions

lisp/finance/interest-compounder-test.lisp

@@ -6,64 +6,64 @@
     (list
 
       (defun principal-initialized ()
-        (setf compounder (interest-compounder 1000 0))
+        (setq compounder (interest-compounder 1000 0))
         (assert= 1000 (call compounder :get-principal)))
 
       (defun interest-rate-initialized ()
-        (setf compounder (interest-compounder 0 10))
+        (setq compounder (interest-compounder 0 10))
         (assert= 10 (call compounder :get-interest-rate)))
 
       (defun many-years-with-no-interest-rate ()
-        (setf compounder (interest-compounder 1000 0))
+        (setq compounder (interest-compounder 1000 0))
         (call compounder :move-forward-years 83)
         (assert= 1000 (call compounder :get-principal)))
 
       (defun no-years-with-positive-interest-rate ()
-        (setf compounder (interest-compounder 1000 10))
+        (setq compounder (interest-compounder 1000 10))
         (assert= 1000 (call compounder :get-principal)))
 
       (defun one-year-with-positive-interest-rate ()
-        (setf compounder (interest-compounder 100000 5))
+        (setq compounder (interest-compounder 100000 5))
         (call compounder :move-forward-years 1)
         (assert= 105000 (call compounder :get-principal)))
 
       (defun two-years-with-positive-interest-rate ()
-        (setf compounder (interest-compounder 100000 5))
+        (setq compounder (interest-compounder 100000 5))
         (call compounder :move-forward-years 2)
         (assert= 110250 (call compounder :get-principal)))
 
       (defun three-years-with-positive-interest-rate ()
-        (setf compounder (interest-compounder 100000 5))
+        (setq compounder (interest-compounder 100000 5))
         (call compounder :move-forward-years 3)
         (assert= 115763 (call compounder :get-principal)))
 
       (defun four-years-with-positive-interest-rate ()
-        (setf compounder (interest-compounder 100000 5))
+        (setq compounder (interest-compounder 100000 5))
         (call compounder :move-forward-years 4)
         (assert= 121551 (call compounder :get-principal)))
 
       (defun one-year-with-negative-interest-rate ()
-        (setf compounder (interest-compounder 100000 -5))
+        (setq compounder (interest-compounder 100000 -5))
         (call compounder :move-forward-years 1)
         (assert= 95000 (call compounder :get-principal)))
 
       (defun two-years-with-negative-interest-rate ()
-        (setf compounder (interest-compounder 100000 -5))
+        (setq compounder (interest-compounder 100000 -5))
         (call compounder :move-forward-years 2)
         (assert= 90250 (call compounder :get-principal)))
 
       (defun three-years-with-negative-interest-rate ()
-        (setf compounder (interest-compounder 100000 -5))
+        (setq compounder (interest-compounder 100000 -5))
         (call compounder :move-forward-years 3)
         (assert= 85737 (call compounder :get-principal)))
 
       (defun four-years-with-negative-interest-rate ()
-        (setf compounder (interest-compounder 100000 -5))
+        (setq compounder (interest-compounder 100000 -5))
         (call compounder :move-forward-years 4)
         (assert= 81450 (call compounder :get-principal)))
 
       (defun negative-number-of-years-does-nothing ()
-        (setf compounder (interest-compounder 100000 5))
+        (setq compounder (interest-compounder 100000 5))
         (call compounder :move-forward-years -4)
         (assert= 100000 (call compounder :get-principal))
         (call compounder :move-forward-years 1)
@@ -71,7 +71,7 @@
         (assert= 105000 (call compounder :get-principal)))
 
       (defun zero-number-of-years-does-nothing ()
-        (setf compounder (interest-compounder 100000 5))
+        (setq compounder (interest-compounder 100000 5))
         (call compounder :move-forward-years 0)
         (assert= 100000 (call compounder :get-principal))
         (call compounder :move-forward-years 1)
@@ -79,25 +79,25 @@
         (assert= 105000 (call compounder :get-principal)))
 
       (defun variable-interest-rate ()
-        (setf compounder (interest-compounder 100000 5))
+        (setq compounder (interest-compounder 100000 5))
         (call compounder :move-forward-years 2)
         (call compounder :set-interest-rate 10)
         (call compounder :move-forward-years 2)
         (assert= 133403 (call compounder :get-principal)))
 
       (defun years-are-updated ()
-        (setf compounder (interest-compounder 100000 5))
+        (setq compounder (interest-compounder 100000 5))
         (call compounder :move-forward-years 27)
         (assert= 27 (call compounder :get-years-passed)))
 
       (defun negative-number-of-years-does-not-update-years ()
-        (setf compounder (interest-compounder 100000 5))
+        (setq compounder (interest-compounder 100000 5))
         (call compounder :move-forward-years 27)
         (call compounder :move-forward-years -2)
         (assert= 27 (call compounder :get-years-passed)))
 
       (defun zero-number-of-years-does-not-update-years ()
-        (setf compounder (interest-compounder 100000 5))
+        (setq compounder (interest-compounder 100000 5))
         (call compounder :move-forward-years 27)
         (call compounder :move-forward-years 0)
         (assert= 27 (call compounder :get-years-passed))))))

lisp/finance/interest-compounder.lisp

@@ -6,13 +6,13 @@
         (interest-rate initial-interest-rate)
         (years-passed 0))
 
-    (setf private
+    (setq private
       (eval
         (dlambda
 
           (:add-years (years)
             (if (> years 0)
-              (setf years-passed (+ years-passed years))))
+              (setq years-passed (+ years-passed years))))
 
           (:percent-of-number (n percentage)
             (if (> percentage 0)
@@ -21,13 +21,13 @@
 
           (:compound-interest (years)
             (if (> years 0)
-              (progn
-                (setf principal
+              (begin
+                (setq principal
                   (+ principal
                     (call private :percent-of-number principal interest-rate)))
                 (call private :compound-interest (- years 1))))))))
 
-    (setf public
+    (setq public
       (eval
         (dlambda
 
@@ -41,9 +41,9 @@
             interest-rate)
 
           (:set-interest-rate (new-interest-rate)
-            (setf interest-rate new-interest-rate))
+            (setq interest-rate new-interest-rate))
 
           (:move-forward-years (years)
-            (progn
+            (begin
               (call private :add-years years)
               (call private :compound-interest years))))))))

lisp/lang/dlambda.lisp

@@ -1,28 +1,19 @@
 (load "functions.lisp")
 
-(define-macro dlambda (&rest methods)
-  (cons
-    (quote lambda)
-    (cons
-      (quote (&rest arguments))
+(define-special dlambda (&rest methods)
+  (cons 'lambda
+    (cons '(&rest arguments)
       (list
-        (cons
-          (quote case)
-          (cons
-            (quote (first arguments))
+        (cons 'case
+          (cons '(first arguments)
             (mapcar
               (lambda (method)
-                (cons
-                  (first method)
+                (cons (first method)
                   (list
-                    (cons
-                      (quote apply)
-                      (cons
-                        (cons
-                          (quote lambda)
-                          (rest method))
+                    (cons 'apply
+                      (cons (cons 'lambda (rest method))
                         (list
                           (if (equal t (car method))
-                            (quote arguments)
-                            (quote (rest arguments)))))))))
+                            'arguments
+                            '(rest arguments))))))))
               methods)))))))

src/function/builtin/predicate/ATOM.java

@@ -6,7 +6,7 @@ import static sexpression.Symbol.T;
 import function.*;
 import sexpression.*;
 
-@FunctionNames({ "ATOM" })
+@FunctionNames({ "ATOM", "ATOM?" })
 public class ATOM extends LispFunction {
 
     private ArgumentValidator argumentValidator;

src/function/builtin/predicate/EQ.java

@@ -6,7 +6,7 @@ import static sexpression.Symbol.T;
 import function.*;
 import sexpression.*;
 
-@FunctionNames({ "EQ" })
+@FunctionNames({ "EQ", "EQ?" })
 public class EQ extends LispFunction {
 
     private ArgumentValidator argumentValidator;

src/function/builtin/predicate/EQUAL.java

@@ -6,7 +6,7 @@ import static sexpression.Symbol.T;
 import function.*;
 import sexpression.*;
 
-@FunctionNames({ "EQUAL" })
+@FunctionNames({ "EQUAL", "EQUAL?" })
 public class EQUAL extends LispFunction {
 
     public static boolean isEqual(SExpression firstArgument, SExpression secondArgument) {

src/function/builtin/predicate/LISTP.java

@@ -6,7 +6,7 @@ import static sexpression.Symbol.T;
 import function.*;
 import sexpression.*;
 
-@FunctionNames({ "LISTP" })
+@FunctionNames({ "LISTP", "LIST?" })
 public class LISTP extends LispFunction {
 
     private ArgumentValidator argumentValidator;

src/function/builtin/predicate/NULL.java

@@ -6,7 +6,7 @@ import static sexpression.Symbol.T;
 import function.*;
 import sexpression.*;
 
-@FunctionNames({ "NULL" })
+@FunctionNames({ "NULL", "NULL?" })
 public class NULL extends LispFunction {
 
     private ArgumentValidator argumentValidator;

src/function/builtin/special/DEFINE_SPECIAL.java

@@ -3,10 +3,10 @@ package function.builtin.special;
 import function.*;
 import sexpression.*;
 
-@FunctionNames({ "DEFINE-MACRO" })
-public class DEFINE_MACRO extends Define {
+@FunctionNames({ "DEFINE-SPECIAL" })
+public class DEFINE_SPECIAL extends Define {
 
-    public DEFINE_MACRO(String name) {
+    public DEFINE_SPECIAL(String name) {
         super(name);
     }
 

src/function/builtin/special/PROGN.java

@@ -6,7 +6,7 @@ import static sexpression.Nil.NIL;
 import function.*;
 import sexpression.*;
 
-@FunctionNames({ "PROGN" })
+@FunctionNames({ "PROGN", "BEGIN" })
 public class PROGN extends LispSpecialFunction {
 
     private ArgumentValidator argumentValidator;

src/table/FunctionTable.java

@@ -22,7 +22,7 @@ public class FunctionTable {
         allBuiltIns.add(CASE.class);
         allBuiltIns.add(COND.class);
         allBuiltIns.add(CONS.class);
-        allBuiltIns.add(DEFINE_MACRO.class);
+        allBuiltIns.add(DEFINE_SPECIAL.class);
         allBuiltIns.add(DEFUN.class);
         allBuiltIns.add(DIVIDE.class);
         allBuiltIns.add(EQ.class);

test/function/builtin/predicate/ATOMTester.java

@@ -14,6 +14,11 @@ public class ATOMTester {
         assertT(evaluateString("(atom 'a)"));
     }
 
+    @Test
+    public void atomIsAtomWithAlias() {
+        assertT(evaluateString("(atom? 'a)"));
+    }
+
     @Test
     public void listIsNotAtom() {
         assertNil(evaluateString("(atom '(1 2 3))"));

test/function/builtin/predicate/EQTester.java

@@ -16,6 +16,14 @@ public class EQTester {
         assertT(evaluateString(input));
     }
 
+    @Test
+    public void eqWithEqualAtomsAndAlias() {
+        String input = "(eq? 1 1)";
+
+        assertT(evaluateString(input));
+    }
+
+
     @Test
     public void eqWithUnequalAtoms() {
         String input = "(eq 1 2)";

test/function/builtin/predicate/EQUALTester.java

@@ -16,6 +16,13 @@ public class EQUALTester {
         assertT(evaluateString(input));
     }
 
+    @Test
+    public void equalWithTwoEqualAtomsAndAlias() {
+        String input = "(equal? 'a 'a)";
+
+        assertT(evaluateString(input));
+    }
+
     @Test
     public void equalWithTwoUnequalAtoms() {
         String input = "(equal 'a 'b)";

test/function/builtin/predicate/LISTPTester.java

@@ -14,6 +14,11 @@ public class LISTPTester {
         assertT(evaluateString("(listp '(1))"));
     }
 
+    @Test
+    public void listpWithListAndAlias() {
+        assertT(evaluateString("(list? '(1))"));
+    }
+
     @Test
     public void listpWithNonList() {
         assertNil(evaluateString("(listp 1)"));

test/function/builtin/predicate/NULLTester.java

@@ -14,6 +14,11 @@ public class NULLTester {
         assertT(evaluateString("(null ())"));
     }
 
+    @Test
+    public void nilIsNullWithAlias() {
+        assertT(evaluateString("(null? ())"));
+    }
+
     @Test
     public void listIsNotNull() {
         assertNil(evaluateString("(null '(1))"));

test/function/builtin/special/DEFINE_SPECIALTester.java

@@ -13,12 +13,12 @@ import error.ErrorManager;
 import function.ArgumentValidator.*;
 import function.UserDefinedFunction.IllegalKeywordRestPositionException;
 
-public class DEFINE_MACROTester {
+public class DEFINE_SPECIALTester {
 
     private ByteArrayOutputStream outputStream;
     private RuntimeEnvironment environment;
 
-    public DEFINE_MACROTester() {
+    public DEFINE_SPECIALTester() {
         this.environment = RuntimeEnvironment.getInstance();
     }
 
@@ -44,59 +44,59 @@ public class DEFINE_MACROTester {
     }
 
     @Test
-    public void defineMacro() {
-        String input = "(define-macro f () t)";
+    public void defineSpecial() {
+        String input = "(define-special f () t)";
 
         assertSExpressionsMatch(parseString("f"), evaluateString(input));
         assertSExpressionsMatch(parseString("t"), evaluateString("(f)"));
     }
 
     @Test
-    public void defineMacroWithEmptyBody() {
-        String input = "(define-macro f ())";
+    public void defineSpecialWithEmptyBody() {
+        String input = "(define-special f ())";
 
         assertSExpressionsMatch(parseString("f"), evaluateString(input));
         assertSExpressionsMatch(parseString("()"), evaluateString("(f)"));
     }
 
     @Test
-    public void defineMacroDoesNotEvaluatesArguments() {
-        evaluateString("(define-macro f (x) (car x))");
+    public void defineSpecialDoesNotEvaluatesArguments() {
+        evaluateString("(define-special f (x) (car x))");
         assertSExpressionsMatch(parseString("quote"), evaluateString("(f '(1 2 3))"));
     }
 
     @Test
-    public void defineMacroAdd() {
-        evaluateString("(define-macro f (x) (+ (eval x) 23))");
+    public void defineSpecialAdd() {
+        evaluateString("(define-special f (x) (+ (eval x) 23))");
         assertSExpressionsMatch(parseString("27"), evaluateString("(f (+ 2 2))"));
     }
 
     @Test
-    public void defineMacroSetVariable() {
-        evaluateString("(define-macro f (x) (set x 23))");
+    public void defineSpecialSetVariable() {
+        evaluateString("(define-special f (x) (set x 23))");
         evaluateString("(f y)");
         assertSExpressionsMatch(parseString("23"), evaluateString("y"));
     }
 
     @Test
-    public void defineMacroVariableCapture() {
+    public void defineSpecialVariableCapture() {
         evaluateString("(setf x 0)");
-        evaluateString("(define-macro f (x) (set x 23))");
+        evaluateString("(define-special f (x) (set x 23))");
         evaluateString("(f x)");
         assertSExpressionsMatch(parseString("0"), evaluateString("x"));
     }
 
     @Test
-    public void defineMacroAvoidVariableCaptureConvention() {
+    public void defineSpecialAvoidVariableCaptureConvention() {
         evaluateString("(setf x 0)");
-        evaluateString("(define-macro f (-x-) (set -x- 23))");
+        evaluateString("(define-special f (-x-) (set -x- 23))");
         evaluateString("(f x)");
         assertSExpressionsMatch(parseString("23"), evaluateString("x"));
     }
 
     @Test
-    public void redefineMacro_DisplaysWarning() {
-        String input = "(define-macro myFunction () nil)";
+    public void redefineSpecial_DisplaysWarning() {
+        String input = "(define-special myFunction () nil)";
         evaluateString(input);
         evaluateString(input);
 
@@ -104,73 +104,73 @@ public class DEFINE_MACROTester {
     }
 
     @Test
-    public void redefineMacro_ActuallyRedefinesMacro() {
-        evaluateString("(define-macro myMacro () nil)");
-        evaluateString("(define-macro myMacro () T)");
+    public void redefineSpecial_ActuallyRedefinesSpecialFunction() {
+        evaluateString("(define-special mySpecialFunction () nil)");
+        evaluateString("(define-special mySpecialFunction () T)");
 
         assertSomethingPrinted();
-        assertSExpressionsMatch(parseString("t"), evaluateString("(myMacro)"));
+        assertSExpressionsMatch(parseString("t"), evaluateString("(mySpecialFunction)"));
     }
 
     @Test(expected = DottedArgumentListException.class)
-    public void defineMacroWithDottedLambdaList() {
-        evaluateString("(funcall 'define-macro 'x (cons 'a 'b) ())");
+    public void defineSpecialWithDottedLambdaList() {
+        evaluateString("(funcall 'define-special 'x (cons 'a 'b) ())");
     }
 
     @Test(expected = BadArgumentTypeException.class)
-    public void defineMacroWithNonSymbolName() {
-        evaluateString("(define-macro 1 () ())");
+    public void defineSpecialWithNonSymbolName() {
+        evaluateString("(define-special 1 () ())");
     }
 
     @Test(expected = BadArgumentTypeException.class)
-    public void defineMacroWithBadLambdaList() {
-        evaluateString("(define-macro x a ())");
+    public void defineSpecialWithBadLambdaList() {
+        evaluateString("(define-special x a ())");
     }
 
     @Test(expected = TooFewArgumentsException.class)
-    public void defineMacroWithTooFewArguments() {
-        evaluateString("(define-macro x)");
+    public void defineSpecialWithTooFewArguments() {
+        evaluateString("(define-special x)");
     }
 
     @Test(expected = TooFewArgumentsException.class)
-    public void defineMacroAndCallWithTooFewArguments() {
-        evaluateString("(define-macro x (a b))");
+    public void defineSpecialAndCallWithTooFewArguments() {
+        evaluateString("(define-special x (a b))");
         evaluateString("(x a)");
     }
 
     @Test(expected = TooManyArgumentsException.class)
-    public void defineMacroAndCallWithTooManyArguments() {
-        evaluateString("(define-macro x (a b))");
+    public void defineSpecialAndCallWithTooManyArguments() {
+        evaluateString("(define-special x (a b))");
         evaluateString("(x a b c)");
     }
 
     @Test
-    public void defineMacroWithKeywordRestParameter() {
-        evaluateString("(define-macro f (&rest x) (car x))");
+    public void defineSpecialWithKeywordRestParameter() {
+        evaluateString("(define-special f (&rest x) (car x))");
         assertSExpressionsMatch(parseString("1"), evaluateString("(f 1 2 3 4 5)"));
     }
 
     @Test
-    public void defineMacroWithNormalAndKeywordRestParameter() {
-        evaluateString("(define-macro f (a &rest b) (cons a b))");
+    public void defineSpecialWithNormalAndKeywordRestParameter() {
+        evaluateString("(define-special f (a &rest b) (cons a b))");
         assertSExpressionsMatch(parseString("(1 2 3 4 5)"), evaluateString("(f 1 2 3 4 5)"));
     }
 
     @Test(expected = IllegalKeywordRestPositionException.class)
-    public void defineMacroWithParametersFollowingKeywordRest() {
-        evaluateString("(define-macro f (a &rest b c) (cons a b))");
+    public void defineSpecialWithParametersFollowingKeywordRest() {
+        evaluateString("(define-special f (a &rest b c) (cons a b))");
         evaluateString("(f 1 2 3)");
     }
 
     @Test
-    public void defineMacroWithKeywordRest_CallWithNoArguments() {
-        evaluateString("(define-macro f (&rest a) (car a))");
+    public void defineSpecialWithKeywordRest_CallWithNoArguments() {
+        evaluateString("(define-special f (&rest a) (car a))");
         assertSExpressionsMatch(parseString("nil"), evaluateString("(f)"));
     }
 
     @Test(expected = TooFewArgumentsException.class)
-    public void defineMacroWithNormalAndKeywordRest_CallWithNoArguments() {
-        evaluateString("(define-macro f (a &rest b) a)");
+    public void defineSpecialWithNormalAndKeywordRest_CallWithNoArguments() {
+        evaluateString("(define-special f (a &rest b) a)");
         evaluateString("(f)");
     }
 

test/function/builtin/special/PROGNTester.java

@@ -22,6 +22,12 @@ public class PROGNTester {
         assertSExpressionsMatch(parseString("5"), evaluateString("(progn 1 2 3 4 5)"));
     }
 
+    @Test
+    public void beginWithSeveralArguments() {
+        assertSExpressionsMatch(parseString("5"), evaluateString("(begin 1 2 3 4 5)"));
+    }
+
+
     @Test
     public void prognEvaluatesArgument() {
         assertSExpressionsMatch(parseString("1"), evaluateString("(progn (car '(1 2 3)))"));