kawa.standard
Class Scheme

java.lang.Object
  gnu.expr.Language
      gnu.kawa.lispexpr.LispLanguage
          kawa.standard.Scheme

Direct Known Subclasses:

BRL, Q2

public class Scheme
extends LispLanguage

Field Summary

static ApplyToArgs	applyToArgs
static LangPrimType	booleanType
static AbstractFormat	displayFormat
static map	forEach
static Declaration	getNamedPartDecl
static Scheme	instance
static InstanceOf	instanceOf
static IsEq	isEq
static IsEqual	isEqual
static IsEqv	isEqv
protected static SimpleEnvironment	kawaEnvironment
static Lambda	lambda
static map	map
static not	not
static Environment	nullEnvironment
static NumberCompare	numEqu
static NumberCompare	numGEq
static NumberCompare	numGrt
static NumberCompare	numLEq
static NumberCompare	numLss
static Environment	r4Environment
static Environment	r5Environment
static repl	repl
static AbstractFormat	writeFormat

Fields inherited from class gnu.kawa.lispexpr.LispLanguage

defaultReadTable, lookup_sym, quasiquote_sym, quote_sym, unquote_sym, unquotesplicing_sym

Fields inherited from class gnu.expr.Language

current, env_counter, environ, FUNCTION_NAMESPACE, NAMESPACE_PREFIX_NAMESPACE, PARSE_IMMEDIATE, PARSE_ONE_LINE, PARSE_PROLOG, requirePedantic, userEnv, VALUE_NAMESPACE

Constructor Summary

	Scheme()
protected	Scheme(Environment env)

Method Summary

static Environment	builtin()
ReadTable	createReadTable() Create a fresh ReadTable appropriate for this language.
static java.lang.Object	eval(InPort port, Environment env) Evalutate Scheme expressions from stream.
static java.lang.Object	eval(java.lang.Object sexpr, Environment env) Evalutate Scheme expressions from an "S expression."
static java.lang.Object	eval(java.lang.String string, Environment env) Evalutate Scheme expressions from string.
static Type	exp2Type(Expression exp) Convert expression to a Type.
AbstractFormat	getFormat(boolean readable)
static Scheme	getInstance()
java.lang.String	getName()
static Type	getNamedType(java.lang.String name)
int	getNamespaceOf(Declaration decl) Return the namespace (e.g value or function) of a Declaration.
Type	getTypeFor(java.lang.Class clas)
Type	getTypeFor(java.lang.String name)
static Type	getTypeValue(Expression exp) If exp is a "constant" Type, return that type, otherwise return null.
NamedLocation	lookupBuiltin(Symbol name, java.lang.Object property, int hash)
Expression	makeApply(Expression func, Expression[] args)
static void	registerEnvironment() The compiler insert calls to this method for applications and applets.
static Type	string2Type(java.lang.String name)

Methods inherited from class gnu.kawa.lispexpr.LispLanguage

declFromField, defSntxStFld, defSntxStFld, fromLangSymbol, getCompilation, getLexer, langSymbolToSymbol, makeBody, parse, resolve, selfEvaluatingSymbol

Methods inherited from class gnu.expr.Language

asType, booleanObject, coerceFromObject, coerceToObject, coerceToObject, defAliasStFld, define, defineFunction, defineFunction, defProcStFld, defProcStFld, detect, detect, detect, emitCoerceToBoolean, emitPushBoolean, eval, eval, eval, eval, eval, eval, eval, eval, eval, formatType, getDefaultLanguage, getEnvironment, getEnvPropertyFor, getEnvPropertyFor, getInstance, getInstance, getInstanceFromFilenameExtension, getLangEnvironment, getLangTypeFor, getLanguages, getNewEnvironment, getOutputConsumer, getPrompter, getSymbol, getTypeFor, getTypeFor, getTypeFor, hasNamespace, hasSeparateFunctionNamespace, isTrue, loadClass, lookup, noValue, parse, parse, parse, registerLanguage, runAsApplication, setDefaultLanguage, setDefaults

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

nullEnvironment

public static final Environment nullEnvironment

r4Environment

public static final Environment r4Environment

r5Environment

public static final Environment r5Environment

kawaEnvironment

protected static final SimpleEnvironment kawaEnvironment

booleanType

public static LangPrimType booleanType

instance

public static final Scheme instance

instanceOf

public static final InstanceOf instanceOf

not

public static final not not

map

public static final map map

forEach

public static final map forEach

isEq

public static final IsEq isEq

isEqv

public static final IsEqv isEqv

isEqual

public static final IsEqual isEqual

repl

public static final repl repl

numEqu

public static final NumberCompare numEqu

numGrt

public static final NumberCompare numGrt

numGEq

public static final NumberCompare numGEq

numLss

public static final NumberCompare numLss

numLEq

public static final NumberCompare numLEq

applyToArgs

public static final ApplyToArgs applyToArgs

getNamedPartDecl

public static final Declaration getNamedPartDecl

lambda

public static final Lambda lambda

writeFormat

public static final AbstractFormat writeFormat

displayFormat

public static final AbstractFormat displayFormat

Constructor Detail

Scheme

public Scheme()

Scheme

protected Scheme(Environment env)

Method Detail

getInstance

public static Scheme getInstance()

builtin

public static Environment builtin()

getName

public java.lang.String getName()

Overrides:

getName in class Language

lookupBuiltin

public NamedLocation lookupBuiltin(Symbol name,
                                   java.lang.Object property,
                                   int hash)

Overrides:

lookupBuiltin in class Language

eval

public static java.lang.Object eval(java.lang.String string,
                                    Environment env)

Evalutate Scheme expressions from string.

Parameters:

string - the string constaining Scheme expressions

env - the Environment to evaluate the string in

Returns:

result of last expression, or Language.voidObject if none.

eval

public static java.lang.Object eval(InPort port,
                                    Environment env)

Evalutate Scheme expressions from stream.

Parameters:

port - the port to read Scheme expressions from

env - the Environment to evaluate the string in

Returns:

result of last expression, or Language.voidObject if none.

eval

public static java.lang.Object eval(java.lang.Object sexpr,
                                    Environment env)

Evalutate Scheme expressions from an "S expression."

Parameters:

sexpr - the S expression to evaluate

env - the Environment to evaluate the string in

Returns:

result of the expression.

getFormat

public AbstractFormat getFormat(boolean readable)

Overrides:

getFormat in class Language

getNamespaceOf

public int getNamespaceOf(Declaration decl)

Description copied from class: Language

Return the namespace (e.g value or function) of a Declaration. Return a bitmask of all the namespaces "covered" by the Declaration. Note this isn't a namespace in the XML sense; if a Declaration has a specific namespace URI, then that is part of its symbol. This namespace bitmap is a separate dimension, for the use of languages that have separate namespaces for different kinds of declarations, such as variables and functions.

Overrides:

getNamespaceOf in class Language

getTypeValue

public static Type getTypeValue(Expression exp)

If exp is a "constant" Type, return that type, otherwise return null.

getNamedType

public static Type getNamedType(java.lang.String name)

getTypeFor

public Type getTypeFor(java.lang.Class clas)

Overrides:

getTypeFor in class Language

string2Type

public static Type string2Type(java.lang.String name)

getTypeFor

public Type getTypeFor(java.lang.String name)

Overrides:

getTypeFor in class Language

exp2Type

public static Type exp2Type(Expression exp)

Convert expression to a Type. Allow "TYPE" or 'TYPE or .

makeApply

public Expression makeApply(Expression func,
                            Expression[] args)

Overrides:

makeApply in class LispLanguage

createReadTable

public ReadTable createReadTable()

Description copied from class: LispLanguage

Create a fresh ReadTable appropriate for this language.

Specified by:

createReadTable in class LispLanguage

registerEnvironment

public static void registerEnvironment()

The compiler insert calls to this method for applications and applets.