Logtalk 2.25.0 files.

git-svn-id: https://yap.svn.sf.net/svnroot/yap/trunk@1288 b08c6af1-5177-4d33-ba66-4b1c6b8b522a

Logtalk/examples/NOTES

@@ -1,6 +1,6 @@
 =================================================================
 Logtalk - Object oriented extension to Prolog
-Release 2.24.0
+Release 2.25.0
 
 Copyright (c) 1998-2005 Paulo Moura.  All Rights Reserved.
 =================================================================
@@ -23,7 +23,7 @@ Some examples may redefine objects already loaded from other examples.
 You may want to restart Logtalk after trying each example.
 
 Some of the examples code have been adopted from public available Prolog 
-code and from known Prolog text books and are copyrighted by the respective 
+code or from known Prolog text books and are copyrighted by the respective 
 authors.
 
 These are programming examples, meaning that you should study the source 

Logtalk/examples/aliases/NOTES

@@ -1,6 +1,6 @@
 =================================================================
 Logtalk - Object oriented extension to Prolog
-Release 2.24.0
+Release 2.25.0
 
 Copyright (c) 1998-2005 Paulo Moura.  All Rights Reserved.
 =================================================================
@@ -10,4 +10,4 @@ To load this example and for sample queries, please see the SCRIPT
 file.
 
 For a description of this example, please see the comments in the 
-aliases.mlgt metafile.
+aliases.lgt source file.

Logtalk/examples/aliases/SCRIPT

@@ -1,6 +1,6 @@
 =================================================================
 Logtalk - Object oriented extension to Prolog
-Release 2.24.0
+Release 2.25.0
 
 Copyright (c) 1998-2005 Paulo Moura.  All Rights Reserved.
 =================================================================
@@ -30,6 +30,23 @@ yes
 Side = 2 
 yes
 
+| ?- square(2)::predicate_property(side(_), Property).
+
+Property = public ;
+Property = static ;
+Property = declared_in(rectangle(_G264, _G265)) ;
+Property = defined_in(rectangle(_G297, _G298)) ;
+Property = alias(width(_G182))
+yes
+
+| ?- square(2)::predicate_property(width(_), Property).
+
+Property = public ;
+Property = static ;
+Property = declared_in(rectangle(_G262, _G263)) ;
+Property = defined_in(rectangle(_G293, _G294))
+yes
+
 
 % check the object circle(_) public protocol:
 

Logtalk/examples/aliases/aliases.lgt

@@ -0,0 +1,70 @@
+/*
+This example illustrates the use of the predicate directive alias/3 for 
+defining alternative names for inherited predicates.
+*/
+
+
+% first, we define a simple parametric object for representing rectangles:
+
+:- object(rectangle(_Width, _Height)).
+
+	:- public(width/1).
+	:- public(height/1).
+	:- public(area/1).
+
+	width(Width) :-
+		parameter(1, Width).
+
+	height(Height) :-
+		parameter(2, Height).
+
+	area(Area) :-
+		::width(Width),
+		::height(Height),
+		Area is Width*Height.
+
+:- end_object.
+
+
+% next, we define a square object which adds an alias, side/1, for the 
+% inherited predicate width/1:
+
+:- object(square(Side),
+	extends(rectangle(Side, Side))).
+
+	:- alias(rectangle(_, _), width/1, side/1).
+
+:- end_object.
+
+
+% a similar example can be defined using ellipses and circles:
+
+:- object(ellipse(_RX, _RY)).
+
+	:- public(rx/1).
+	:- public(ry/1).
+	:- public(area/1).
+
+	rx(Rx) :-
+		parameter(1, Rx).
+
+	ry(Ry) :-
+		parameter(2, Ry).
+
+	area(Area) :-
+		::rx(Rx),
+		::ry(Ry),
+		Area is Rx*Ry*3.1415927.
+
+:- end_object.
+
+
+% in this case, we define an alias named r/1 for the inherited 
+% predicate rx/1:
+
+:- object(circle(Radius),
+	extends(ellipse(Radius, Radius))).
+
+	:- alias(ellipse(_, _), rx/1, r/1).
+
+:- end_object.

Logtalk/examples/assignvars/NOTES

@@ -1,6 +1,6 @@
 =================================================================
 Logtalk - Object oriented extension to Prolog
-Release 2.24.0
+Release 2.25.0
 
 Copyright (c) 1998-2005 Paulo Moura.  All Rights Reserved.
 =================================================================

Logtalk/examples/assignvars/SCRIPT

@@ -1,6 +1,6 @@
 =================================================================
 Logtalk - Object oriented extension to Prolog
-Release 2.24.0
+Release 2.25.0
 
 Copyright (c) 1998-2005 Paulo Moura.  All Rights Reserved.
 =================================================================

Logtalk/examples/benchmarks/NOTES

@@ -1,6 +1,6 @@
 =================================================================
 Logtalk - Object oriented extension to Prolog
-Release 2.24.0
+Release 2.25.0
 
 Copyright (c) 1998-2005 Paulo Moura.  All Rights Reserved.
 =================================================================

Logtalk/examples/benchmarks/SCRIPT

@@ -1,6 +1,6 @@
 =================================================================
 Logtalk - Object oriented extension to Prolog
-Release 2.24.0
+Release 2.25.0
 
 Copyright (c) 1998-2005 Paulo Moura.  All Rights Reserved.
 =================================================================

Logtalk/examples/birds/NOTES

@@ -1,6 +1,6 @@
 =================================================================
 Logtalk - Object oriented extension to Prolog
-Release 2.24.0
+Release 2.25.0
 
 Copyright (c) 1998-2005 Paulo Moura.  All Rights Reserved.
 =================================================================

Logtalk/examples/birds/SCRIPT

@@ -1,6 +1,6 @@
 =================================================================
 Logtalk - Object oriented extension to Prolog
-Release 2.24.0
+Release 2.25.0
 
 Copyright (c) 1998-2005 Paulo Moura.  All Rights Reserved.
 =================================================================

Logtalk/examples/birds/expert.lgt

@@ -34,7 +34,7 @@
 		write('Bird identification expert system'), nl, nl,
 		forall(
  			(order::leaf(Bird), check(Bird)),
-			(nl, write('Possible identification : '), write(Bird), nl)),
+			(nl, write('Possible identification: '), write(Bird), nl)),
 		nl, write('No (more) candidates found.').
 
 

Logtalk/examples/bricks/NOTES

@@ -1,6 +1,6 @@
 =================================================================
 Logtalk - Object oriented extension to Prolog
-Release 2.24.0
+Release 2.25.0
 
 Copyright (c) 1998-2005 Paulo Moura.  All Rights Reserved.
 =================================================================

Logtalk/examples/bricks/SCRIPT

@@ -1,6 +1,6 @@
 =================================================================
 Logtalk - Object oriented extension to Prolog
-Release 2.24.0
+Release 2.25.0
 
 Copyright (c) 1998-2005 Paulo Moura.  All Rights Reserved.
 =================================================================

Logtalk/examples/classvars/NOTES

@@ -1,6 +1,6 @@
 =================================================================
 Logtalk - Object oriented extension to Prolog
-Release 2.24.0
+Release 2.25.0
 
 Copyright (c) 1998-2005 Paulo Moura.  All Rights Reserved.
 =================================================================

Logtalk/examples/classvars/SCRIPT

@@ -1,6 +1,6 @@
 =================================================================
 Logtalk - Object oriented extension to Prolog
-Release 2.24.0
+Release 2.25.0
 
 Copyright (c) 1998-2005 Paulo Moura.  All Rights Reserved.
 =================================================================

Logtalk/examples/dcgs/NOTES

@@ -1,6 +1,6 @@
 =================================================================
 Logtalk - Object oriented extension to Prolog
-Release 2.24.0
+Release 2.25.0
 
 Copyright (c) 1998-2005 Paulo Moura.  All Rights Reserved.
 =================================================================

Logtalk/examples/dcgs/SCRIPT

@@ -1,6 +1,6 @@
 =================================================================
 Logtalk - Object oriented extension to Prolog
-Release 2.24.0
+Release 2.25.0
 
 Copyright (c) 1998-2005 Paulo Moura.  All Rights Reserved.
 =================================================================

Logtalk/examples/diamonds/NOTES

@@ -1,6 +1,6 @@
 =================================================================
 Logtalk - Object oriented extension to Prolog
-Release 2.24.0
+Release 2.25.0
 
 Copyright (c) 1998-2005 Paulo Moura.  All Rights Reserved.
 =================================================================

Logtalk/examples/diamonds/SCRIPT

@@ -1,6 +1,6 @@
 =================================================================
 Logtalk - Object oriented extension to Prolog
-Release 2.24.0
+Release 2.25.0
 
 Copyright (c) 1998-2005 Paulo Moura.  All Rights Reserved.
 =================================================================
@@ -12,7 +12,7 @@ Copyright (c) 1998-2005 Paulo Moura.  All Rights Reserved.
 ...
 
 
-% first variant of the "diamond problem", defined in the "diamond1" metafile:
+% first variant of the "diamond problem", defined in the "diamond1" source file:
 
 | ?- d1::m.
 
@@ -20,7 +20,7 @@ Redefinition of method m/0 in object b1
 yes
 
 
-% second variant of the "diamond problem", defined in the "diamond2" metafile:
+% second variant of the "diamond problem", defined in the "diamond2" source file:
 
 | ?- d2::m.
 
@@ -28,7 +28,7 @@ Redefinition of method m/0 in object c2
 yes
 
 
-% third variant of the "diamond problem", defined in the "diamond3" metafile:
+% third variant of the "diamond problem", defined in the "diamond3" source file:
 
 | ?- d3::b3_m.
 

Logtalk/examples/diamonds/diamond1.lgt

@@ -0,0 +1,57 @@
+/*
+These objects illustrate a variant of the "diamond problem" using 
+a prototype hierarchy.
+
+In this simple case, the inherited definition which will be used in the  
+bottom object is determined by the Logtalk predicate lookup algorithm. 
+*/
+
+
+% root object, declaring and defining a predicate m/0:
+
+:- object(a1).
+
+	:- public(m/0).
+
+	m :-
+		this(This),
+		write('Default definition of method m/0 in object '),
+		write(This), nl.
+
+:- end_object.
+
+
+% an object descending from the root object, which redefines predicate m/0:
+
+:- object(b1,
+	extends(a1)).
+
+	m :-
+		this(This),
+		write('Redefinition of method m/0 in object '),
+		write(This), nl.
+
+:- end_object.
+
+
+% another object descending from the root object, which also redefines predicate m/0:
+
+:- object(c1,
+	extends(a1)).
+
+	m :-
+		this(This),
+		write('Redefinition of method m/0 in object '),
+		write(This), nl.
+
+:- end_object.
+
+
+% bottom object, descending from the two previous objects and, as such, inheriting
+% two definitions for the predicate m/0:
+
+:- object(d1,
+	extends(b1, c1)).
+
+
+:- end_object.

Logtalk/examples/diamonds/diamond2.lgt

@@ -0,0 +1,64 @@
+/*
+These objects illustrate a variant of the "diamond problem" using 
+a prototype hierarchy.
+
+In this simple case, a solution for making the overridden definition inherited 
+by the bottom object the visible one is implemented using the alias/3 predicate 
+directive. 
+*/
+
+
+% root object, declaring and defining a predicate m/0:
+
+:- object(a2).
+
+	:- public(m/0).
+
+	m :-
+		this(This),
+		write('Default definition of method m/0 in object '),
+		write(This), nl.
+
+:- end_object.
+
+
+% an object descending from the root object, which redefines predicate m/0:
+
+:- object(b2,
+	extends(a2)).
+
+	m :-
+		this(This),
+		write('Redefinition of method m/0 in object '),
+		write(This), nl.
+
+:- end_object.
+
+
+% another object descending from the root object, which also redefines predicate m/0:
+
+:- object(c2,
+	extends(a2)).
+
+	m :-
+		this(This),
+		write('Redefinition of method m/0 in object '),
+		write(This), nl.
+
+:- end_object.
+
+
+% bottom object, descending from the two previous objects and, as such, inheriting
+% two definitions for the predicate m/0; the overridden definition inherited from 
+% object "c2" is renamed using the alias/3 directive and then we redefine the 
+% predicate m/0 to call the renamed definition:
+
+:- object(d2,
+	extends(b2, c2)).
+
+	:- alias(c2, m/0, c2_m/0).
+	
+	m :-
+		::c2_m.
+
+:- end_object.

Logtalk/examples/diamonds/diamond3.lgt

@@ -0,0 +1,61 @@
+/*
+These objects illustrate a variant of the "diamond problem" using 
+a prototype hierarchy.
+
+In this simple case, a solution is presented for making two conflicting 
+definitions inherited by the bottom object visible through the use of the 
+alias/3 predicate directive. 
+*/
+
+
+% root object, declaring and defining a predicate m/0:
+
+:- object(a3).
+
+	:- public(m/0).
+
+	m :-
+		this(This),
+		write('Default definition of method m/0 in object '),
+		write(This), nl.
+
+:- end_object.
+
+
+% an object descending from the root object, which redefines predicate m/0:
+
+:- object(b3,
+	extends(a3)).
+
+	m :-
+		this(This),
+		write('Redefinition of method m/0 in object '),
+		write(This), nl.
+
+:- end_object.
+
+
+% another object descending from the root object, which also redefines predicate m/0:
+
+:- object(c3,
+	extends(a3)).
+
+	m :-
+		this(This),
+		write('Redefinition of method m/0 in object '),
+		write(This), nl.
+
+:- end_object.
+
+
+% bottom object, descending from the two previous objects and, as such, inheriting
+% two definitions for the predicate m/0; both inherited definitions are renamed 
+% using the alias/3 directive:
+
+:- object(d3,
+	extends(b3, c3)).
+
+	:- alias(b3, m/0, b3_m/0).
+	:- alias(c3, m/0, c3_m/0).
+
+:- end_object.

Logtalk/examples/dynpred/NOTES

@@ -1,6 +1,6 @@
 =================================================================
 Logtalk - Object oriented extension to Prolog
-Release 2.24.0
+Release 2.25.0
 
 Copyright (c) 1998-2005 Paulo Moura.  All Rights Reserved.
 =================================================================

Logtalk/examples/dynpred/SCRIPT

@@ -1,6 +1,6 @@
 =================================================================
 Logtalk - Object oriented extension to Prolog
-Release 2.24.0
+Release 2.25.0
 
 Copyright (c) 1998-2005 Paulo Moura.  All Rights Reserved.
 =================================================================

Logtalk/examples/encodings/NOTES

@@ -1,6 +1,6 @@
 =================================================================
 Logtalk - Object oriented extension to Prolog
-Release 2.24.0
+Release 2.25.0
 
 Copyright (c) 1998-2005 Paulo Moura.  All Rights Reserved.
 =================================================================
@@ -13,8 +13,23 @@ directive, which is fully based on the directive with the same name found
 on recent development releases of SWI-Prolog. Currently, this example 
 requires Logtalk to be run with the SWI-Prolog compiler.
 
-The "babel.lgt" source file uses UTF-8 encoding. When browsing its code, 
-be sure to use a text editor that supports this encoding. In addition, 
-you may need to configure your text editor to open the source file using 
-this encoding. If you are using the SWI-Prolog GUI application on Windows, 
-be sure to select a font which supports Unicode characters.
+The "babel.lgt" source file uses UTF-8 encoding. The "latin.lgt" source 
+file uses ISO-8859-1 (Latin 1) encoding. Be sure to use a text editor that 
+supports these encodings when opening these files. In addition, you may 
+need to configure your text editor to open the source file using the 
+declared encoding. If you are using the SWI-Prolog GUI application on 
+Windows, be sure to select a font which supports Unicode characters.
+
+Currently, Logtalk accepts any atom is an argument for the encoding/1 
+directive. As, by default, Logtalk automatically generates a XML documenting 
+file for each compiled entity, the following table is used to set the 
+encoding of the XML file:
+
+	Logtalk source file		XML file
+	ascii					us-ascii
+	iso_latin_1				iso-8859-1
+	unicode_be				utf-16
+	unicode_le				utf-16
+	utf8					utf-8
+
+Note that the values on the left column are the ones recognized by SWI-Prolog.

Logtalk/examples/encodings/SCRIPT

@@ -1,6 +1,6 @@
 =================================================================
 Logtalk - Object oriented extension to Prolog
-Release 2.24.0
+Release 2.25.0
 
 Copyright (c) 1998-2005 Paulo Moura.  All Rights Reserved.
 =================================================================
@@ -44,3 +44,18 @@ Code = zh
 Text = '你好世界!'
 
 Yes
+
+
+% query the table of names:
+
+| ?- latin::name(Name).
+
+Name = 'António Simões' ;
+
+Name = 'Cátia Conceição' ;
+
+Name = 'João Raínho' ;
+
+Name = 'Luís Araújo'
+
+Yes

Logtalk/examples/encodings/latin.lgt

@@ -0,0 +1,24 @@
+
+:- encoding(iso_latin_1).
+
+
+:- object(latin).
+
+	:- info([
+		version is 1.0,
+		author is 'Paulo Moura',
+		date is 2005/04/24,
+		comment is 'Simple test of the encoding/1 directive.']).
+
+	:- public(name/1).
+	:- mode(name(?atom), zero_or_more).
+	:- info(name/1, [
+		comment is 'Table of person names.',
+		argnames is ['Name']]).
+
+	name('Ant<6E>nio Sim<69>es').
+	name('C<>tia Concei<65><69>o').
+	name('Jo<4A>o Ra<52>nho').
+	name('Lu<4C>s Ara<72>jo').
+
+:- end_object.

Logtalk/examples/encodings/loader.lgt

@@ -1,4 +1,5 @@
 
 :- initialization(
 	logtalk_load([
-		babel])). 
+		babel,
+		latin])). 

Logtalk/examples/engines/NOTES

@@ -1,6 +1,6 @@
 =================================================================
 Logtalk - Object oriented extension to Prolog
-Release 2.24.0
+Release 2.25.0
 
 Copyright (c) 1998-2005 Paulo Moura.  All Rights Reserved.
 =================================================================
@@ -10,4 +10,4 @@ To load this example and for sample queries, please see the SCRIPT
 file.
 
 For a description of this example, please see the comments in the 
-engines.mlgt metafile.
+engines.lgt source file.

Logtalk/examples/engines/SCRIPT

@@ -1,6 +1,6 @@
 =================================================================
 Logtalk - Object oriented extension to Prolog
-Release 2.24.0
+Release 2.25.0
 
 Copyright (c) 1998-2005 Paulo Moura.  All Rights Reserved.
 =================================================================

Logtalk/examples/engines/engines.lgt

@@ -0,0 +1,67 @@
+/*
+This is a simple example of category composition, i.e. importation of 
+categories by other categories in order to provide modified components 
+for building objects, using car engines.
+
+The example defines a car engine protocol (enginep), a standard engine 
+(classic), and an improved version of it (sport). Both engines are then 
+imported in two car models (sedan and coupe).
+*/
+
+
+% first we define a protocol for describing the characteristics of an engine:
+
+:- protocol(enginep).
+
+	:- public(reference/1).
+	:- public(capacity/1).
+	:- public(cylinders/1).
+	:- public(horsepower_rpm/2).
+	:- public(bore_stroke/2).
+	:- public(fuel/1).
+
+:- end_protocol.
+
+
+% second, we can define a typical engine as a category, which will be used 
+% when "assembling" cars:
+
+:- category(classic,
+	implements(enginep)).
+
+	reference('M180.940').
+	capacity(2195).
+	cylinders(6).
+	horsepower_rpm(94, 4800).
+	bore_stroke(80, 72.8).
+	fuel(gasoline).
+
+:- end_category.
+
+
+% next, we define a souped up version of the previous engine, which differs 
+% from the standard one only in its reference and in its horsepower:
+
+:- category(sport,
+	imports(classic)).
+
+	reference('M180.941').
+	horsepower_rpm(110, 5000).
+
+:- end_category.
+
+
+% with engines (and other components), we may start "assembling" some cars:
+
+:- object(sedan,
+	imports(classic)).
+
+
+:- end_object.
+
+
+:- object(coupe,
+	imports(sport)).
+
+
+:- end_object.

Logtalk/examples/errors/NOTES

@@ -1,6 +1,6 @@
 =================================================================
 Logtalk - Object oriented extension to Prolog
-Release 2.24.0
+Release 2.25.0
 
 Copyright (c) 1998-2005 Paulo Moura.  All Rights Reserved.
 =================================================================

Logtalk/examples/errors/SCRIPT

@@ -0,0 +1,16 @@
+=================================================================
+Logtalk - Object oriented extension to Prolog
+Release 2.25.0
+
+Copyright (c) 1998-2005 Paulo Moura.  All Rights Reserved.
+=================================================================
+
+
+% The entities on this example are divided in two sets. To load each 
+% sets of entities, compile and load the corresponding loader files:
+
+| ?- logtalk_load(errors(warnings_loader)).
+...
+
+| ?- logtalk_load(errors(errors_loader)).
+...

Logtalk/examples/hello_world/NOTES

@@ -1,6 +1,6 @@
 =================================================================
 Logtalk - Object oriented extension to Prolog
-Release 2.24.0
+Release 2.25.0
 
 Copyright (c) 1998-2005 Paulo Moura.  All Rights Reserved.
 =================================================================

Logtalk/examples/hello_world/SCRIPT

@@ -1,6 +1,6 @@
 =================================================================
 Logtalk - Object oriented extension to Prolog
-Release 2.24.0
+Release 2.25.0
 
 Copyright (c) 1998-2005 Paulo Moura.  All Rights Reserved.
 =================================================================

Logtalk/examples/inheritance/NOTES

@@ -1,6 +1,6 @@
 =================================================================
 Logtalk - Object oriented extension to Prolog
-Release 2.24.0
+Release 2.25.0
 
 Copyright (c) 1998-2005 Paulo Moura.  All Rights Reserved.
 =================================================================

Logtalk/examples/inheritance/SCRIPT

@@ -1,6 +1,6 @@
 =================================================================
 Logtalk - Object oriented extension to Prolog
-Release 2.24.0
+Release 2.25.0
 
 Copyright (c) 1998-2005 Paulo Moura.  All Rights Reserved.
 =================================================================

Logtalk/examples/instmethods/NOTES

@@ -1,6 +1,6 @@
 =================================================================
 Logtalk - Object oriented extension to Prolog
-Release 2.24.0
+Release 2.25.0
 
 Copyright (c) 1998-2005 Paulo Moura.  All Rights Reserved.
 =================================================================

Logtalk/examples/instmethods/SCRIPT

@@ -1,6 +1,6 @@
 =================================================================
 Logtalk - Object oriented extension to Prolog
-Release 2.24.0
+Release 2.25.0
 
 Copyright (c) 1998-2005 Paulo Moura.  All Rights Reserved.
 =================================================================

Logtalk/examples/lo/NOTES

@@ -1,6 +1,6 @@
 =================================================================
 Logtalk - Object oriented extension to Prolog
-Release 2.24.0
+Release 2.25.0
 
 Copyright (c) 1998-2005 Paulo Moura.  All Rights Reserved.
 =================================================================

Logtalk/examples/lo/planner/NOTES

@@ -1,6 +1,6 @@
 =================================================================
 Logtalk - Object oriented extension to Prolog
-Release 2.24.0
+Release 2.25.0
 
 Copyright (c) 1998-2005 Paulo Moura.  All Rights Reserved.
 =================================================================

Logtalk/examples/lo/planner/SCRIPT

@@ -1,6 +1,6 @@
 =================================================================
 Logtalk - Object oriented extension to Prolog
-Release 2.24.0
+Release 2.25.0
 
 Copyright (c) 1998-2005 Paulo Moura.  All Rights Reserved.
 =================================================================

Logtalk/examples/lo/travellers/NOTES

@@ -1,6 +1,6 @@
 =================================================================
 Logtalk - Object oriented extension to Prolog
-Release 2.24.0
+Release 2.25.0
 
 Copyright (c) 1998-2005 Paulo Moura.  All Rights Reserved.
 =================================================================

Logtalk/examples/lo/travellers/SCRIPT

@@ -1,6 +1,6 @@
 =================================================================
 Logtalk - Object oriented extension to Prolog
-Release 2.24.0
+Release 2.25.0
 
 Copyright (c) 1998-2005 Paulo Moura.  All Rights Reserved.
 =================================================================

Logtalk/examples/logic/NOTES

@@ -1,6 +1,6 @@
 =================================================================
 Logtalk - Object oriented extension to Prolog
-Release 2.24.0
+Release 2.25.0
 
 Copyright (c) 1998-2005 Paulo Moura.  All Rights Reserved.
 =================================================================

Logtalk/examples/logic/SCRIPT

@@ -1,6 +1,6 @@
 =================================================================
 Logtalk - Object oriented extension to Prolog
-Release 2.24.0
+Release 2.25.0
 
 Copyright (c) 1998-2005 Paulo Moura.  All Rights Reserved.
 =================================================================

Logtalk/examples/lpa/NOTES

@@ -1,17 +1,11 @@
 =================================================================
 Logtalk - Object oriented extension to Prolog
-Release 2.24.0
+Release 2.25.0
 
 Copyright (c) 1998-2005 Paulo Moura.  All Rights Reserved.
 =================================================================
 
-
-To load this example and for sample queries, please see the SCRIPT 
-file.
-
-This example is an adaptation of a LPA Prolog++ example that is 
-described in the LPA Prolog++ Reference Manual. This manual can 
-be downloaded from the LPA web site <http://www.lpa.co.uk>. Please 
-consult this reference manual for further informations about this 
-example.
-
+This directory contains examples adaptated from the LPA Prolog++ 
+Reference Manual. This manual can be downloaded from the LPA web 
+site at <http://www.lpa.co.uk>. Please consult this reference 
+manual for further informations about each example.

Logtalk/examples/lpa/SCRIPT

@@ -1,34 +0,0 @@
-=================================================================
-Logtalk - Object oriented extension to Prolog
-Release 2.24.0
-
-Copyright (c) 1998-2005 Paulo Moura.  All Rights Reserved.
-=================================================================
-
-
-% start by loading the necessary library support files (if not 
-% already loaded):
-
-| ?- logtalk_load(library(hierarchies_loader)).
-...
-
-
-% now you are ready for loading the example:
-
-| ?- logtalk_load(lpa(loader)).
-...
-
-
-| ?- fault::findall.
-
-Please answer all questions with yes or no.
-
-The starter turns but the engine doesnt fire?   no.
-The engine has difficulty starting?     yes.
-The engine cuts out shortly after starting?     yes.
-
-Location      : distributor
-Possible Fault: Worn distributor brushes
-
-No (more) explanations found.
-yes.

Logtalk/examples/lpa/cylinders.lgt

@@ -1,6 +0,0 @@
-
-:- object(cylinders,
-	extends(engine)).
-
-
-:- end_object.

Logtalk/examples/lpa/distributor.lgt

@@ -1,25 +0,0 @@
-
-:- object(distributor,
-	extends(sparking)).
-
-
-	fault(f1001, 'Condensation in the distributor cap').
-	fault(f1002, 'Faulty distributor arm').
-	fault(f1003, 'Worn distributor brushes').
-
-	symptom(s1001, 'The starter turns but the engine doesnt fire').
-	symptom(s1002, 'The engine has difficulty starting').
-	symptom(s1003, 'The engine cuts out shortly after starting').
-	symptom(s1004, 'The engine cuts out at speed').
-
-	effect(f1001, s1001).
-	effect(f1002, s1001).
-	effect(f1002, s1004).
-	effect(f1003, s1002).
-	effect(f1003, s1003).
-
-	contrary(s1002, s1001).
-	contrary(s1003, s1001).
-
-
-:- end_object.

Logtalk/examples/lpa/electrical.lgt

@@ -1,6 +0,0 @@
-
-:- object(electrical,
-	extends(fault)).
-
-
-:- end_object.

Logtalk/examples/lpa/engine.lgt

@@ -1,6 +0,0 @@
-
-:- object(engine,
-	extends(mechanical)).
-
-
-:- end_object.

Logtalk/examples/lpa/fault.lgt

@@ -1,72 +0,0 @@
-
-:- object(fault,
-	imports(proto_hierarchy)).
-
-
-	:- info([
-		author is 'Paulo Moura',
-		version is 1.0,
-		date is 2000/4/22,
-		comment is 'Expert system for automobile fault diagnosis.',
-		source is 'Example adopted from the LPA Prolog++ documentation.']).
-
-
-	:- public(findall/0).
-	:- mode(findall, one).
-
-	:- private(told_by_user_/2).
-	:- dynamic(told_by_user_/2).
-	:- mode(told_by_user_(?nonvar, ?nonvar), zero_or_more).
-
-	:- public(find/1).
-	:- mode(find(?nonvar), zero_or_more).
-
-	:- private(exhibited/1).
-	:- mode(exhibited(+nonvar), zero_or_one).
-
-	:- public(contrary/2).
-	:- mode(contrary(?nonvar, ?nonvar), zero_or_more).
-
-	:- public(fault/2).
-	:- mode(fault(?nonvar, ?nonvar), zero_or_more).
-
-	:- public(effect/2).
-	:- mode(effect(?nonvar, ?nonvar), zero_or_more).
-
-	:- public(symptom/2).
-	:- mode(symptom(?nonvar, ?nonvar), zero_or_more).
-
-
-	findall :-
-		retractall(told_by_user_(_, _)),
-		write('Please answer all questions with yes or no.'), nl, nl,
-		forall(
- 			(::descendant(Where), Where::find(Description)),
-			(nl, write('Location      : '), write(Where), nl,
-			 write('Possible Fault: '), write(Description), nl)),
-		nl, write('No (more) explanations found.').
-
-
-	find(Description) :-
-		::fault(Fault, Description),
-		forall(::effect(Fault, Symptom), exhibited(Symptom)).
-
-
-	exhibited(Symptom) :-
-		told_by_user_(Symptom, Reply),
-		!,
-		Reply = yes.
-
-	exhibited(Symptom) :-
-		::symptom(Symptom, Description),
-		write(Description), write('? '),
-		read(Reply),
-		asserta(told_by_user_(Symptom, Reply)),
-		Reply = yes,
-		forall(
-			(::contrary(Symptom, Contrary);
-			 ::contrary(Contrary, Symptom)),
-			asserta(told_by_user_(Contrary, no))).
-
-
-:- end_object.

Logtalk/examples/lpa/fuel_system.lgt

@@ -1,6 +0,0 @@
-
-:- object(fuel_system,
-	extends(fault)).
-
-
-:- end_object.

Logtalk/examples/lpa/lights.lgt

@@ -1,6 +0,0 @@
-
-:- object(lights,
-	extends(electrical)).
-
-
-:- end_object.

Logtalk/examples/lpa/loader.lgt

@@ -1,15 +0,0 @@
-
-:- initialization(
-	logtalk_load([
-		fault,
-		mechanical,
-		engine,
-		cylinders,
-		electrical,
-		starting,
-		sparking,
-		plugs,
-		distributor,
-		fuel_system,
-		lights,
-		starter_motor])).

Logtalk/examples/lpa/mechanical.lgt

@@ -1,6 +0,0 @@
-
-:- object(mechanical,
-        extends(fault)).
-
-
-:- end_object.

Logtalk/examples/lpa/plugs.lgt

@@ -1,6 +0,0 @@
-
-:- object(plugs,
-	extends(sparking)).
-
-
-:- end_object.

Logtalk/examples/lpa/sparking.lgt

@@ -1,6 +0,0 @@
-
-:- object(sparking,
-	extends(starting)).
-
-
-:- end_object.

Logtalk/examples/lpa/starter_motor.lgt

@@ -1,6 +0,0 @@
-
-:- object(starter_motor,
-	extends(starting)).
-
-
-:- end_object.

Logtalk/examples/lpa/starting.lgt

@@ -1,6 +0,0 @@
-
-:- object(starting,
-	extends(electrical)).
-
-
-:- end_object.

Logtalk/examples/metainterpreters/NOTES

@@ -1,6 +1,6 @@
 =================================================================
 Logtalk - Object oriented extension to Prolog
-Release 2.24.0
+Release 2.25.0
 
 Copyright (c) 1998-2005 Paulo Moura.  All Rights Reserved.
 =================================================================

Logtalk/examples/metainterpreters/SCRIPT

@@ -1,6 +1,6 @@
 =================================================================
 Logtalk - Object oriented extension to Prolog
-Release 2.24.0
+Release 2.25.0
 
 Copyright (c) 1998-2005 Paulo Moura.  All Rights Reserved.
 =================================================================

Logtalk/examples/metapredicates/NOTES

@@ -1,6 +1,6 @@
 =================================================================
 Logtalk - Object oriented extension to Prolog
-Release 2.24.0
+Release 2.25.0
 
 Copyright (c) 1998-2005 Paulo Moura.  All Rights Reserved.
 =================================================================

Logtalk/examples/metapredicates/SCRIPT

@@ -1,6 +1,6 @@
 =================================================================
 Logtalk - Object oriented extension to Prolog
-Release 2.24.0
+Release 2.25.0
 
 Copyright (c) 1998-2005 Paulo Moura.  All Rights Reserved.
 =================================================================

Logtalk/examples/mi/NOTES

@@ -1,6 +1,6 @@
 =================================================================
 Logtalk - Object oriented extension to Prolog
-Release 2.24.0
+Release 2.25.0
 
 Copyright (c) 1998-2005 Paulo Moura.  All Rights Reserved.
 =================================================================

Logtalk/examples/mi/SCRIPT

@@ -1,6 +1,6 @@
 =================================================================
 Logtalk - Object oriented extension to Prolog
-Release 2.24.0
+Release 2.25.0
 
 Copyright (c) 1998-2005 Paulo Moura.  All Rights Reserved.
 =================================================================

Logtalk/examples/miscellaneous/NOTES

@@ -1,6 +1,6 @@
 =================================================================
 Logtalk - Object oriented extension to Prolog
-Release 2.24.0
+Release 2.25.0
 
 Copyright (c) 1998-2005 Paulo Moura.  All Rights Reserved.
 =================================================================

Logtalk/examples/miscellaneous/SCRIPT

@@ -1,6 +1,6 @@
 =================================================================
 Logtalk - Object oriented extension to Prolog
-Release 2.24.0
+Release 2.25.0
 
 Copyright (c) 1998-2005 Paulo Moura.  All Rights Reserved.
 =================================================================

Logtalk/examples/msglog/NOTES

@@ -1,6 +1,6 @@
 =================================================================
 Logtalk - Object oriented extension to Prolog
-Release 2.24.0
+Release 2.25.0
 
 Copyright (c) 1998-2005 Paulo Moura.  All Rights Reserved.
 =================================================================

Logtalk/examples/msglog/SCRIPT

@@ -1,12 +1,19 @@
 =================================================================
 Logtalk - Object oriented extension to Prolog
-Release 2.24.0
+Release 2.25.0
 
 Copyright (c) 1998-2005 Paulo Moura.  All Rights Reserved.
 =================================================================
 
 
-% start by loading the example:
+% start by loading the necessary library support files (if not 
+% already loaded):
+
+| ?- logtalk_load(library(types_loader)).
+...
+
+
+% now you are ready for loading the example:
 
 | ?- logtalk_load(msglog(loader)).
 ...

Logtalk/examples/operators/NOTES

@@ -1,6 +1,6 @@
 =================================================================
 Logtalk - Object oriented extension to Prolog
-Release 2.24.0
+Release 2.25.0
 
 Copyright (c) 1998-2005 Paulo Moura.  All Rights Reserved.
 =================================================================

Logtalk/examples/operators/SCRIPT

@@ -1,6 +1,6 @@
 =================================================================
 Logtalk - Object oriented extension to Prolog
-Release 2.24.0
+Release 2.25.0
 
 Copyright (c) 1998-2005 Paulo Moura.  All Rights Reserved.
 =================================================================

Logtalk/examples/parametric/NOTES

@@ -1,6 +1,6 @@
 =================================================================
 Logtalk - Object oriented extension to Prolog
-Release 2.24.0
+Release 2.25.0
 
 Copyright (c) 1998-2005 Paulo Moura.  All Rights Reserved.
 =================================================================

Logtalk/examples/parametric/SCRIPT

@@ -1,6 +1,6 @@
 =================================================================
 Logtalk - Object oriented extension to Prolog
-Release 2.24.0
+Release 2.25.0
 
 Copyright (c) 1998-2005 Paulo Moura.  All Rights Reserved.
 =================================================================

Logtalk/examples/points/NOTES

@@ -1,6 +1,6 @@
 =================================================================
 Logtalk - Object oriented extension to Prolog
-Release 2.24.0
+Release 2.25.0
 
 Copyright (c) 1998-2005 Paulo Moura.  All Rights Reserved.
 =================================================================

Logtalk/examples/points/SCRIPT

@@ -1,6 +1,6 @@
 =================================================================
 Logtalk - Object oriented extension to Prolog
-Release 2.24.0
+Release 2.25.0
 
 Copyright (c) 1998-2005 Paulo Moura.  All Rights Reserved.
 =================================================================

Logtalk/examples/polygons/NOTES

@@ -1,6 +1,6 @@
 =================================================================
 Logtalk - Object oriented extension to Prolog
-Release 2.24.0
+Release 2.25.0
 
 Copyright (c) 1998-2005 Paulo Moura.  All Rights Reserved.
 =================================================================

Logtalk/examples/polygons/SCRIPT

@@ -1,6 +1,6 @@
 =================================================================
 Logtalk - Object oriented extension to Prolog
-Release 2.24.0
+Release 2.25.0
 
 Copyright (c) 1998-2005 Paulo Moura.  All Rights Reserved.
 =================================================================

Logtalk/examples/profiling/NOTES

@@ -1,6 +1,6 @@
 =================================================================
 Logtalk - Object oriented extension to Prolog
-Release 2.24.0
+Release 2.25.0
 
 Copyright (c) 1998-2005 Paulo Moura.  All Rights Reserved.
 =================================================================

Logtalk/examples/profiling/SCRIPT

@@ -1,6 +1,6 @@
 =================================================================
 Logtalk - Object oriented extension to Prolog
-Release 2.24.0
+Release 2.25.0
 
 Copyright (c) 1998-2005 Paulo Moura.  All Rights Reserved.
 =================================================================

Logtalk/examples/puzzles/NOTES

@@ -1,6 +1,6 @@
 =================================================================
 Logtalk - Object oriented extension to Prolog
-Release 2.24.0
+Release 2.25.0
 
 Copyright (c) 1998-2005 Paulo Moura.  All Rights Reserved.
 =================================================================

Logtalk/examples/puzzles/SCRIPT

@@ -1,6 +1,6 @@
 =================================================================
 Logtalk - Object oriented extension to Prolog
-Release 2.24.0
+Release 2.25.0
 
 Copyright (c) 1998-2005 Paulo Moura.  All Rights Reserved.
 =================================================================

Logtalk/examples/reflection/NOTES

@@ -1,6 +1,6 @@
 =================================================================
 Logtalk - Object oriented extension to Prolog
-Release 2.24.0
+Release 2.25.0
 
 Copyright (c) 1998-2005 Paulo Moura.  All Rights Reserved.
 =================================================================

Logtalk/examples/reflection/SCRIPT

@@ -1,6 +1,6 @@
 =================================================================
 Logtalk - Object oriented extension to Prolog
-Release 2.24.0
+Release 2.25.0
 
 Copyright (c) 1998-2005 Paulo Moura.  All Rights Reserved.
 =================================================================

Logtalk/examples/relations/NOTES

@@ -1,6 +1,6 @@
 =================================================================
 Logtalk - Object oriented extension to Prolog
-Release 2.24.0
+Release 2.25.0
 
 Copyright (c) 1998-2005 Paulo Moura.  All Rights Reserved.
 =================================================================

Logtalk/examples/relations/SCRIPT

@@ -1,6 +1,6 @@
 =================================================================
 Logtalk - Object oriented extension to Prolog
-Release 2.24.0
+Release 2.25.0
 
 Copyright (c) 1998-2005 Paulo Moura.  All Rights Reserved.
 =================================================================

Logtalk/examples/roots/NOTES

@@ -1,6 +1,6 @@
 =================================================================
 Logtalk - Object oriented extension to Prolog
-Release 2.24.0
+Release 2.25.0
 
 Copyright (c) 1998-2005 Paulo Moura.  All Rights Reserved.
 =================================================================

Logtalk/examples/roots/SCRIPT

@@ -1,6 +1,6 @@
 =================================================================
 Logtalk - Object oriented extension to Prolog
-Release 2.24.0
+Release 2.25.0
 
 Copyright (c) 1998-2005 Paulo Moura.  All Rights Reserved.
 =================================================================

Logtalk/examples/searching/NOTES

@@ -1,6 +1,6 @@
 =================================================================
 Logtalk - Object oriented extension to Prolog
-Release 2.24.0
+Release 2.25.0
 
 Copyright (c) 1998-2005 Paulo Moura.  All Rights Reserved.
 =================================================================

Logtalk/examples/searching/SCRIPT

@@ -1,6 +1,6 @@
 =================================================================
 Logtalk - Object oriented extension to Prolog
-Release 2.24.0
+Release 2.25.0
 
 Copyright (c) 1998-2005 Paulo Moura.  All Rights Reserved.
 =================================================================

Logtalk/examples/shapes/NOTES

@@ -1,6 +1,6 @@
 =================================================================
 Logtalk - Object oriented extension to Prolog
-Release 2.24.0
+Release 2.25.0
 
 Copyright (c) 1998-2005 Paulo Moura.  All Rights Reserved.
 =================================================================

Logtalk/examples/shapes/ch/NOTES

@@ -1,6 +1,6 @@
 =================================================================
 Logtalk - Object oriented extension to Prolog
-Release 2.24.0
+Release 2.25.0
 
 Copyright (c) 1998-2005 Paulo Moura.  All Rights Reserved.
 =================================================================

Logtalk/examples/shapes/ch/SCRIPT

@@ -1,6 +1,6 @@
 =================================================================
 Logtalk - Object oriented extension to Prolog
-Release 2.24.0
+Release 2.25.0
 
 Copyright (c) 1998-2005 Paulo Moura.  All Rights Reserved.
 =================================================================

Logtalk/examples/shapes/ph/NOTES

@@ -1,6 +1,6 @@
 =================================================================
 Logtalk - Object oriented extension to Prolog
-Release 2.24.0
+Release 2.25.0
 
 Copyright (c) 1998-2005 Paulo Moura.  All Rights Reserved.
 =================================================================

Logtalk/examples/shapes/ph/SCRIPT

@@ -1,6 +1,6 @@
 =================================================================
 Logtalk - Object oriented extension to Prolog
-Release 2.24.0
+Release 2.25.0
 
 Copyright (c) 1998-2005 Paulo Moura.  All Rights Reserved.
 =================================================================

Logtalk/examples/sicstus/NOTES

@@ -1,6 +1,6 @@
 =================================================================
 Logtalk - Object oriented extension to Prolog
-Release 2.24.0
+Release 2.25.0
 
 Copyright (c) 1998-2005 Paulo Moura.  All Rights Reserved.
 =================================================================

Logtalk/examples/sicstus/SCRIPT

@@ -1,6 +1,6 @@
 =================================================================
 Logtalk - Object oriented extension to Prolog
-Release 2.24.0
+Release 2.25.0
 
 Copyright (c) 1998-2005 Paulo Moura.  All Rights Reserved.
 =================================================================

Logtalk/examples/symdiff/NOTES

@@ -1,6 +1,6 @@
 =================================================================
 Logtalk - Object oriented extension to Prolog
-Release 2.24.0
+Release 2.25.0
 
 Copyright (c) 1998-2005 Paulo Moura.  All Rights Reserved.
 =================================================================

Logtalk/examples/symdiff/SCRIPT

@@ -1,6 +1,6 @@
 =================================================================
 Logtalk - Object oriented extension to Prolog
-Release 2.24.0
+Release 2.25.0
 
 Copyright (c) 1998-2005 Paulo Moura.  All Rights Reserved.
 =================================================================