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SUMMARY: JavaDoc of com.memoire.silk.SilkSchemeUtils JAVADOC | Sourc code of com.memoire.silk.SilkSchemeUtils SOURCE | Download com.memoire.silk.SilkSchemeUtils DOWNLOAD | NESTED | FIELD | CONSTR | METHOD DETAIL: FIELD | CONSTR | METHOD

com.memoire.silk
Class SilkSchemeUtils  view SilkSchemeUtils download SilkSchemeUtils.java

java.lang.Object
  extended bycom.memoire.silk.SilkSchemeUtils
Direct Known Subclasses:
SilkEnvironment, SilkInputPort, SilkPair, SilkProcedure, SilkScheme
public abstract class SilkSchemeUtils
extends java.lang.Object

Field Summary
static java.lang.Boolean FALSE
          Same as Boolean.FALSE.
static java.lang.Double ONE
           
static java.lang.Boolean TRUE
          Same as Boolean.TRUE.
static java.lang.Double ZERO
           
 
Constructor Summary
SilkSchemeUtils()
           
 
Method Summary
static java.lang.Character chr(char ch)
          Converts a char to a Character.
static char chr(java.lang.Object x)
          Converts a SilkScheme object to a char, or calls error.
static SilkPair cons(java.lang.Object a, java.lang.Object b)
          cons(x, y) is the same as new SilkPair(x, y).
static boolean equal(java.lang.Object x, java.lang.Object y)
          Check if two objects are equal.
static boolean eqv(java.lang.Object x, java.lang.Object y)
          Check if two objects are == or are equal numbers or characters.
static java.lang.Object error(java.lang.String message)
          A continuable error.
static java.lang.Object first(java.lang.Object x)
          Like Common Lisp first; car of a SilkPair, or null for anything else.
static SilkInputPort inPort(java.lang.Object x, SilkScheme interp)
          Coerces a SilkScheme object to a SilkScheme input port, which is an SilkInputPort.
static int length(java.lang.Object x)
          The length of a list, or zero for a non-list.
static SilkPair list(java.lang.Object a)
          Creates a one element list.
static SilkPair list(java.lang.Object a, java.lang.Object b)
          Creates a two element list.
static java.lang.Object listStar(java.lang.Object args)
          listStar(args) is like Common Lisp (apply #'list* args)
static char[] listToString(java.lang.Object chars)
          Convert a list of characters to a SilkScheme string, which is a char[].
static java.lang.Object[] listToVector(java.lang.Object objs)
          Convert a list of Objects to a SilkScheme vector, which is a Object[].
static java.lang.Double num(double x)
          Convert double to Double.
static double num(java.lang.Object x)
          Converts a SilkScheme object to a double, or calls error.
static java.io.PrintWriter outPort(java.lang.Object x, SilkScheme interp)
          Coerces a SilkScheme object to a SilkScheme input port, which is a PrintWriter.
(package private) static java.lang.Object p(java.lang.Object x)
          For debugging purposes, prints output.
(package private) static java.lang.Object p(java.lang.String msg, java.lang.Object x)
          For debugging purposes, prints output.
static java.lang.Object rest(java.lang.Object x)
          Like Common Lisp rest; car of a SilkPair, or null for anything else.
static java.lang.Object reverse(java.lang.Object x)
          Reverse the elements of a list.
static java.lang.Object second(java.lang.Object x)
          Like Common Lisp second.
static java.lang.Object setFirst(java.lang.Object x, java.lang.Object y)
          Like Common Lisp (setf (first ...
static java.lang.Object setRest(java.lang.Object x, java.lang.Object y)
          Like Common Lisp (setf (rest ...
static char[] str(java.lang.Object x)
          Coerces a SilkScheme object to a SilkScheme string, which is a char[].
(package private) static java.lang.String stringify(java.lang.Object x)
          Convert x to a Java String giving its external representation.
(package private) static java.lang.String stringify(java.lang.Object x, boolean quoted)
          Convert x to a Java String giving its external representation.
(package private) static void stringify(java.lang.Object x, boolean quoted, java.lang.StringBuffer buf)
          Convert a SilkScheme object to its printed representation, as a java String (not a SilkScheme string).
static java.lang.String sym(java.lang.Object x)
          Coerces a SilkScheme object to a SilkScheme symbol, which is a string.
static java.lang.Object third(java.lang.Object x)
          Like Common Lisp third.
static java.lang.Boolean truth(boolean x)
          Convert boolean to Boolean.
static boolean truth(java.lang.Object x)
          Convert SilkScheme object to boolean.
static java.lang.Object[] vec(java.lang.Object x)
          Coerces a SilkScheme object to a SilkScheme vector, which is a Object[].
static SilkPair vectorToList(java.lang.Object x)
          Convert a vector to a List.
static java.lang.Object warn(java.lang.String message)
           
static java.lang.Object write(java.lang.Object x, java.io.PrintWriter port, boolean quoted)
          Write the object to a port.
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Field Detail

TRUE

public static final java.lang.Boolean TRUE
Same as Boolean.TRUE.

FALSE

public static final java.lang.Boolean FALSE
Same as Boolean.FALSE.

ZERO

public static java.lang.Double ZERO

ONE

public static java.lang.Double ONE
Constructor Detail

SilkSchemeUtils

public SilkSchemeUtils()
Method Detail

truth

public static java.lang.Boolean truth(boolean x)
Convert boolean to Boolean.

truth

public static boolean truth(java.lang.Object x)
Convert SilkScheme object to boolean. Only #f is false, others are true.

num

public static java.lang.Double num(double x)
Convert double to Double. Caches 0 and 1; makes new for others.

num

public static double num(java.lang.Object x)
Converts a SilkScheme object to a double, or calls error.

chr

public static char chr(java.lang.Object x)
Converts a SilkScheme object to a char, or calls error.

chr

public static java.lang.Character chr(char ch)
Converts a char to a Character.

str

public static char[] str(java.lang.Object x)
Coerces a SilkScheme object to a SilkScheme string, which is a char[].

sym

public static java.lang.String sym(java.lang.Object x)
Coerces a SilkScheme object to a SilkScheme symbol, which is a string.

vec

public static java.lang.Object[] vec(java.lang.Object x)
Coerces a SilkScheme object to a SilkScheme vector, which is a Object[].

inPort

public static SilkInputPort inPort(java.lang.Object x,
                                   SilkScheme interp)
Coerces a SilkScheme object to a SilkScheme input port, which is an SilkInputPort. If the argument is null, returns interpreter.input.

outPort

public static java.io.PrintWriter outPort(java.lang.Object x,
                                          SilkScheme interp)
Coerces a SilkScheme object to a SilkScheme input port, which is a PrintWriter. If the argument is null, returns System.out.

error

public static java.lang.Object error(java.lang.String message)
A continuable error. Prints an error message and then prompts for a value to eval and return.

warn

public static java.lang.Object warn(java.lang.String message)

first

public static java.lang.Object first(java.lang.Object x)
Like Common Lisp first; car of a SilkPair, or null for anything else.

rest

public static java.lang.Object rest(java.lang.Object x)
Like Common Lisp rest; car of a SilkPair, or null for anything else.

setFirst

public static java.lang.Object setFirst(java.lang.Object x,
                                        java.lang.Object y)
Like Common Lisp (setf (first ...

setRest

public static java.lang.Object setRest(java.lang.Object x,
                                       java.lang.Object y)
Like Common Lisp (setf (rest ...

second

public static java.lang.Object second(java.lang.Object x)
Like Common Lisp second.

third

public static java.lang.Object third(java.lang.Object x)
Like Common Lisp third.

list

public static SilkPair list(java.lang.Object a,
                            java.lang.Object b)
Creates a two element list.

list

public static SilkPair list(java.lang.Object a)
Creates a one element list.

listStar

public static java.lang.Object listStar(java.lang.Object args)
listStar(args) is like Common Lisp (apply #'list* args)

cons

public static SilkPair cons(java.lang.Object a,
                            java.lang.Object b)
cons(x, y) is the same as new SilkPair(x, y).

reverse

public static java.lang.Object reverse(java.lang.Object x)
Reverse the elements of a list.

equal

public static boolean equal(java.lang.Object x,
                            java.lang.Object y)
Check if two objects are equal.

eqv

public static boolean eqv(java.lang.Object x,
                          java.lang.Object y)
Check if two objects are == or are equal numbers or characters.

length

public static int length(java.lang.Object x)
The length of a list, or zero for a non-list.

listToString

public static char[] listToString(java.lang.Object chars)
Convert a list of characters to a SilkScheme string, which is a char[].

listToVector

public static java.lang.Object[] listToVector(java.lang.Object objs)
Convert a list of Objects to a SilkScheme vector, which is a Object[].

write

public static java.lang.Object write(java.lang.Object x,
                                     java.io.PrintWriter port,
                                     boolean quoted)
Write the object to a port. If quoted is true, use "str" and #\c, otherwise use str and c.

vectorToList

public static SilkPair vectorToList(java.lang.Object x)
Convert a vector to a List.

stringify

static void stringify(java.lang.Object x,
                      boolean quoted,
                      java.lang.StringBuffer buf)
Convert a SilkScheme object to its printed representation, as a java String (not a SilkScheme string). If quoted is true, use "str" and #\c, otherwise use str and c. You need to pass in a StringBuffer that is used to accumulate the results. (If the interface didn't work that way, the system would use lots of little internal StringBuffers. But note that you can still call stringify(x) and a new StringBuffer will be created for you.

stringify

static java.lang.String stringify(java.lang.Object x)
Convert x to a Java String giving its external representation. Strings and characters are quoted.

stringify

static java.lang.String stringify(java.lang.Object x,
                                  boolean quoted)
Convert x to a Java String giving its external representation. Strings and characters are quoted iff quoted is true..

p

static java.lang.Object p(java.lang.Object x)
For debugging purposes, prints output.

p

static java.lang.Object p(java.lang.String msg,
                          java.lang.Object x)
For debugging purposes, prints output.

Overview  Package   Class  Use  Deprecated  Index 
Home >> All >> com >> memoire >> [ silk overview ]  PREV CLASS  NEXT CLASS
SUMMARY: JavaDoc of com.memoire.silk.SilkSchemeUtils JAVADOC | Sourc code of com.memoire.silk.SilkSchemeUtils SOURCE | Download com.memoire.silk.SilkSchemeUtils DOWNLOAD | NESTED | FIELD | CONSTR | METHOD DETAIL: FIELD | CONSTR | METHOD