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Revision 1540, 4.2 KB (checked in by pmoura, 4 years ago)
Updated release number to 2.21.2.
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1	=================================================================
2	Logtalk - Object oriented extension to Prolog
3	Release 2.21.2
4
5	Copyright (c) 1998-2004 Paulo Moura. All Rights Reserved.
6	=================================================================
7
8
9	This folder contains several examples of Logtalk programs. A brief
10	description of each example is included below.
11
12	Each example folder contains a NOTES file and a loader helper file which
13	may be used to load all the example entities. In addition, most examples
14	contain a SCRIPT file with sample queries for your to try.
15
16	Most of these examples need objects, protocols, and categories which are
17	defined in the Logtalk standard library or in other examples, so you
18	should load them first (see the NOTES files inside the library folder and
19	the NOTES file inside each example folder).
20
21	Some examples may redefine objects already loaded from other examples.
22	You may want to restart Logtalk after trying each example.
23
24	Some of the examples code have been adopted from public available Prolog
25	code and from known Prolog text books and are copyrighted by the respective
26	authors.
27
28	These are programming examples, meaning that you should study the source
29	files to fully understand them.
30
31	All examples are formatted using four spaces tabs.
32
33	By default, compiling an example generates a .xml documenting file for each
34	compiled entity (object, category, or protocol). See the xml folder for
35	instructions on how to browse the .xml files for on-line reading or how to
36	convert the files to a print-ready format such as PDF.
37
38
39	Here is a short description of each included example:
40
41	aliases
42	example of using the alias/3 predicate directive to provide alternative
43	names to inherited predicates in order to improve readability
44
45	birds
46	bird identification expert system
47	example adopted from the Adventure in Prolog Amzi! book
48
49	bricks
50	example of representation and handling of relations using events
51
52	classvars
53	example of implementation of class variables (as found in Smalltalk)
54
55	dcgs
56	examples of using DCG rules inside objects and categories
57
58	diamonds
59	examples of problems and solutions for the "diamond problem"
60	(multi-inheritance conflicts and ambiguities)
61
62	dynpred
63	example of using some of the built-in database handling methods
64
65	engines
66	example of category composition (importation of categories by other
67	categories) using car engines
68
69	errors
70	example showing the Logtalk compiler warning and error reporting
71
72	inheritance
73	examples of public, protected and private inheritance with both
74	prototypes and classes/instances
75
76	instmethods
77	example of instance defined methods
78
79	lo
80	examples adopted from the Francis G. McCabe L&O system
81
82	logic
83	example of a translator of logic propositions to clauses in conjunctive
84	normal form
85
86	lpa
87	examples adopted from the LPA Prolog++ system
88
89	metapredicates
90	example of using metapredicates in Logtalk objects
91
92	metainterpreters
93	some examples of simple metainterpreters
94
95	mi
96	multi-inheritance examples
97
98	miscellaneous
99	unsorted examples
100
101	msglog
102	example of using events and monitors for recording, replaying, and
103	printing user messages
104
105	operators
106	example of using operators local to objects and categories
107
108	parametric
109	simple example of parametric objects
110
111	poem
112	examples adopted from the Ben Staveley-Taylor POEM system
113
114	points
115	example adopted from SICStus Objects documentation
116
117	polygons
118	example of representation and handling of relations using events
119
120	profiling
121	examples of using of events and monitors to implement profilers
122
123	puzzles
124	several examples of logical puzzles
125
126	reflection
127	example of a simple class-based reflective system
128
129	relations
130	objects implementing predicates for dealing with relations and
131	constrained relations between objects
132
133	roots
134	objects, protocols and categories needed by most of the other examples
135
136	searching
137	state-space searching framework
138	example adopted from Ivan Bratko's "Prolog Programming for Artificial
139	Intelligence" book
140
141	shapes
142	geometric shapes implemented as both a prototype hierarchy and a class
143	hierarchy
144
145	sicstus
146	examples adopted from SICStus Objects documentation
147
148	symdiff
149	example of using parametric objects to implement symbolic expression
150	differentiation and simplification
151
152	viewpoints
153	example on how to implement property and value sharing with prototypes

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