Package edu.neu.ccs.demeterf.lib

DemFGen useful library classes.

See:
Description

Class Summary

BLACK	Represents the color Black for RBTrees
Cons<X>	Represents a Lisp style cons list.
Cons.first
Cons.rest
Empty<X>	Represents the Empty List.
Entry<Key,Val>	Class representing Map Entries (key/value Pairs).
Entry.key	Field Class for key
Entry.val	Field Class for val
ident	DemFGen identifier class.
ident.name
List<X>	Represents Lisp stype Lists.
List.Build<X>	Build a List from the sequence of integers [0..len-1]
List.Comp<X>	Compare two List Elements of the same type
List.Fold<X,Y>	Fold the List into a single Value
List.GComp<X,Y>	(General) Compare two List Elements of possibly different types (true is "LessThan" for sort(), but "Equal" for same(...))
List.Map<X,Y>	Apply a function to each element of the list
List.Pred<X>	Select Elements of a List
List.Stringer<X>	Compute a String from a List (Visitor)
List.Zip<X,Y,Z>	Zip two Lists into a single Value
Map<Key,Val>	Represents a Map of comparable Keys to any old Values, implemented with RBTrees.
Map.Merge<Val>	Function Class to help in the merging of Maps.
Map.Transform<X,Y>	Trnasformer for Values o fa given Map
Map.tree	Field Class
None<X>	Represents Nothing...
Option<X>	Represents an Optional instance, similar to ML/Haskell Option types.
RBColor	Represents the Color of an RBTree
RBLeaf<X extends Comparable<X>>	Represents the Leaf of an RBTree, e.g., the empty tree
RBNode<X extends Comparable<X>>	Represents a Node of an RBTree, e.g., the non-empty tree
RBNode.color
RBNode.data
RBNode.left
RBNode.right
RBTree<X extends Comparable<X>>	Java Functional implementation of Red-Black Trees.
RED	Represents the color Red for RBTrees
Set<X>	Represents a Set of comparable Elements, implemented with RBTrees.
Set.Merge<X>	Function Class to help in the merging of Sets.
Set.tree	Field Class
Some<X>	Represents an Optional instance that exists.
Some.just
verbatim	Represents verbatim text, similar to DemeterJ Text class.
verbatim.text
Wrap<X>	Wrapping class for Sets, so that the elements are not forced to be Comparable.

Exception Summary

RE	Simple Runtime Exception for the DemeterF Lib

Package edu.neu.ccs.demeterf.lib Description

DemFGen useful library classes. These classes can be imported and used with DemFGen as collection classes. The file "lib.cd" contains the DemFGen CD file that represents the structure of these classes. It can be included in projects to allow parsing/printing of these classes for use in your own CD files.

Here's the library structures from lib.cd:

    package edu.neu.ccs.demeterf.demfgen.lib;

    import edu.neu.ccs.demeterf.demfgen.lib.*;

    nogen List(X) = Cons(X) | Empty(X).
    nogen Cons(X) =  X  List(X).
    nogen Empty(X) = .
 
    nogen Option(X)= Some(X) | None(X).
    nogen Some(X)  =  X.
    nogen None(X)  = .
 
    nogen RBColor = RED | BLACK.
    nogen RED = "red".
    nogen BLACK = "black".
  
    nogen RBTree(X:Comparable) = RBNode(X) | RBLeaf(X).
    nogen RBNode(X:Comparable) = "(node"  RBColor   X
                                           RBTree(X)
                                          RBTree(X) ")".
    nogen RBLeaf(X:Comparable) = .
 

Each class also contains tons of useful methods that will help make your life easier... and it's all done functionally :)