static {
instance = new CommonLisp();
instance.define("t", TRUE);
instance.define("nil", FALSE);
numEqu = NumberCompare.make(instance, "=", NumberCompare.TRUE_IF_EQU);
numGrt = NumberCompare.make(instance, ">", NumberCompare.TRUE_IF_GRT);
numGEq =
NumberCompare.make(instance, ">=", NumberCompare.TRUE_IF_GRT | NumberCompare.TRUE_IF_EQU);
numLss = NumberCompare.make(instance, "<", NumberCompare.TRUE_IF_LSS);
numLEq =
NumberCompare.make(instance, "<=", NumberCompare.TRUE_IF_LSS | NumberCompare.TRUE_IF_EQU);
Environment saveEnv = Environment.setSaveCurrent(clispEnvironment);
try {
instance.initLisp();
} finally {
Environment.restoreCurrent(saveEnv);
}
}
public class CommonLisp extends Lisp2 {
static boolean charIsInt = false;
/** Get a CommonLisp character object. */
public static Object getCharacter(int c) {
if (charIsInt) return gnu.math.IntNum.make(c);
else return Char.make((char) c);
}
public static gnu.math.Numeric asNumber(Object arg) {
if (arg instanceof Char) return gnu.math.IntNum.make(((Char) arg).intValue());
return (gnu.math.Numeric) arg;
}
public static char asChar(Object x) {
if (x instanceof Char) return ((Char) x).charValue();
int i;
if (x instanceof gnu.math.Numeric) i = ((gnu.math.Numeric) x).intValue();
else i = -1;
if (i < 0 || i > 0xffff) throw new ClassCastException("not a character value");
return (char) i;
}
public String getName() {
return "CommonLisp";
}
// This field need to be public so that the findLiteral method in
// gnu.expr.LitTable can find it.
public static final CommonLisp instance;
public static final Environment clispEnvironment = Environment.make("clisp-environment");
public static final NumberCompare numEqu;
public static final NumberCompare numGrt;
public static final NumberCompare numGEq;
public static final NumberCompare numLss;
public static final NumberCompare numLEq;
static {
instance = new CommonLisp();
instance.define("t", TRUE);
instance.define("nil", FALSE);
numEqu = NumberCompare.make(instance, "=", NumberCompare.TRUE_IF_EQU);
numGrt = NumberCompare.make(instance, ">", NumberCompare.TRUE_IF_GRT);
numGEq =
NumberCompare.make(instance, ">=", NumberCompare.TRUE_IF_GRT | NumberCompare.TRUE_IF_EQU);
numLss = NumberCompare.make(instance, "<", NumberCompare.TRUE_IF_LSS);
numLEq =
NumberCompare.make(instance, "<=", NumberCompare.TRUE_IF_LSS | NumberCompare.TRUE_IF_EQU);
Environment saveEnv = Environment.setSaveCurrent(clispEnvironment);
try {
instance.initLisp();
} finally {
Environment.restoreCurrent(saveEnv);
}
}
public CommonLisp() {
environ = clispEnvironment;
}
void initLisp() {
LocationEnumeration e = Scheme.builtin().enumerateAllLocations();
while (e.hasMoreElements()) {
importLocation(e.nextLocation());
}
try {
// Force it to be loaded now, so we can over-ride let* length etc.
loadClass("kawa.lib.prim_syntax");
loadClass("kawa.lib.std_syntax");
loadClass("kawa.lib.lists");
loadClass("kawa.lib.strings");
loadClass("gnu.commonlisp.lisp.PrimOps");
} catch (java.lang.ClassNotFoundException ex) {
// Ignore - happens while building this directory.
}
kawa.lang.Lambda lambda = new kawa.lang.Lambda();
lambda.setKeywords(asSymbol("&optional"), asSymbol("&rest"), asSymbol("&key"));
lambda.defaultDefault = nilExpr;
defun("lambda", lambda);
defun("defun", new defun(lambda));
defun("defvar", new defvar(false));
defun("defconst", new defvar(true));
defun("defsubst", new defun(lambda));
defun("function", new function(lambda));
defun("setq", new setq());
defun("prog1", new prog1("prog1", 1));
defun("prog2", prog1.prog2);
defun("progn", new kawa.standard.begin());
defun("unwind-protect", new gnu.commonlisp.lang.UnwindProtect());
Procedure not = new gnu.kawa.functions.Not(this);
defun("not", not);
defun("null", not);
defun("eq", new gnu.kawa.functions.IsEq(this, "eq"));
defun("equal", new gnu.kawa.functions.IsEqual(this, "equal"));
defun("typep", new gnu.kawa.reflect.InstanceOf(this));
defun("princ", displayFormat);
defun("prin1", writeFormat);
defProcStFld("=", "gnu.commonlisp.lang.CommonLisp", "numEqu");
defProcStFld("<", "gnu.commonlisp.lang.CommonLisp", "numLss");
defProcStFld(">", "gnu.commonlisp.lang.CommonLisp", "numGrt");
defProcStFld("<=", "gnu.commonlisp.lang.CommonLisp", "numLEq");
defProcStFld(">=", "gnu.commonlisp.lang.CommonLisp", "numGEq");
defProcStFld("functionp", "gnu.commonlisp.lisp.PrimOps");
}
public static CommonLisp getInstance() {
return instance;
}
/** The compiler insert calls to this method for applications and applets. */
public static void registerEnvironment() {
Language.setDefaults(instance);
}
static final AbstractFormat writeFormat = new DisplayFormat(true, 'C');
static final AbstractFormat displayFormat = new DisplayFormat(false, 'C');
public AbstractFormat getFormat(boolean readable) {
return readable ? writeFormat : displayFormat;
}
LangPrimType booleanType;
public Type getTypeFor(String name) {
if (name == "t") name = "java.lang.Object";
return Scheme.string2Type(name);
}
public Type getTypeFor(Class clas) {
if (clas.isPrimitive()) {
String name = clas.getName();
if (name.equals("boolean")) {
if (booleanType == null) booleanType = new LangPrimType(Type.booleanType, this);
return booleanType;
}
return Scheme.getNamedType(name);
}
return Type.make(clas);
}
}