Logtalk 2.30.2 files.

git-svn-id: https://yap.svn.sf.net/svnroot/yap/trunk@1908 b08c6af1-5177-4d33-ba66-4b1c6b8b522a
2007-06-24 13:27:35 +00:00 · 2007-06-24 13:27:35 +00:00 · 9fc2c47d53
commit 9fc2c47d53
parent 628bcbeeb6
261 changed files with 675 additions and 1035 deletions
--- a/Logtalk/CUSTOMIZE.txt
+++ b/Logtalk/CUSTOMIZE.txt
@ -1,6 +1,6 @@
 ================================================================
 Logtalk - Open source object-oriented logic programming language
-Release 2.30.1
+Release 2.30.2
 Copyright (c) 1998-2007 Paulo Moura.  All Rights Reserved.
 ================================================================
--- a/Logtalk/INSTALL.txt
+++ b/Logtalk/INSTALL.txt
@ -1,6 +1,6 @@
 ================================================================
 Logtalk - Open source object-oriented logic programming language
-Release 2.30.1
+Release 2.30.2
 Copyright (c) 1998-2007 Paulo Moura.  All Rights Reserved.
 ================================================================
--- a/Logtalk/QUICK_START.txt
+++ b/Logtalk/QUICK_START.txt
@ -1,6 +1,6 @@
 ================================================================
 Logtalk - Open source object-oriented logic programming language
-Release 2.30.1
+Release 2.30.2
 Copyright (c) 1998-2007 Paulo Moura.  All Rights Reserved.
 ================================================================
--- a/Logtalk/README.txt
+++ b/Logtalk/README.txt
@ -1,6 +1,6 @@
 ================================================================
 Logtalk - Open source object-oriented logic programming language
-Release 2.30.1
+Release 2.30.2
 Copyright (c) 1998-2007 Paulo Moura.  All Rights Reserved.
 ================================================================
--- a/Logtalk/RELEASE_NOTES.txt
+++ b/Logtalk/RELEASE_NOTES.txt
@ -1,6 +1,6 @@
 ================================================================
 Logtalk - Open source object-oriented logic programming language
-Release 2.30.1
+Release 2.30.2
 Copyright (c) 1998-2007 Paulo Moura.  All Rights Reserved.
 ================================================================
@ -10,6 +10,31 @@ RELEASE NOTES
 =============
 2.30.2 - June 24, 2007
 	Updated the Logtalk compiler to throw a compilation error when duplicated 
 	or conflicting predicate scope directives are found.
 	Updated the Logtalk compiler to correct a cosmetic glitch when reporting 
 	compilation errors.
 	Updated the Logtalk compiler to check for mismatches between the argument 
 	of this/1 calls and the parametric object identifier.
 	Corrected a bug in the implementation of the multi-threading built-in 
 	predicate threaded_ignore/1.
 	Revamped the "threads/buffer" example to support setting the buffer 
 	maximum number of items.
 	Added a new DCG example, "dcgs/morse.lgt", for parsing messages in Morse 
 	code.
 	Extended the "parametric" example to illustrate a solution for dealing 
 	with inheritance when defining "setter" predicates/methods that return 
 	updated object identifiers.
 2.30.1 - June 12, 2007
 	Added a new, experimental control construct, :/1, for calling imported 
--- a/Logtalk/UPGRADING.txt
+++ b/Logtalk/UPGRADING.txt
@ -1,6 +1,6 @@
 ================================================================
 Logtalk - Open source object-oriented logic programming language
-Release 2.30.1
+Release 2.30.2
 Copyright (c) 1998-2007 Paulo Moura.  All Rights Reserved.
 ================================================================
--- a/Logtalk/contributions/NOTES.txt
+++ b/Logtalk/contributions/NOTES.txt
@ -1,6 +1,6 @@
 ================================================================
 Logtalk - Open source object-oriented logic programming language
-Release 2.30.1
+Release 2.30.2
 Copyright (c) 1998-2007 Paulo Moura.  All Rights Reserved.
 ================================================================
--- a/Logtalk/contributions/xml_parser/NOTES.txt
+++ b/Logtalk/contributions/xml_parser/NOTES.txt
@ -1,6 +1,6 @@
 ================================================================
 Logtalk - Open source object-oriented logic programming language
-Release 2.30.1
+Release 2.30.2
 Copyright (c) 1998-2007 Paulo Moura.  All Rights Reserved.
 ================================================================
--- a/Logtalk/contributions/xml_parser/SCRIPT.txt
+++ b/Logtalk/contributions/xml_parser/SCRIPT.txt
@ -1,6 +1,6 @@
 ================================================================
 Logtalk - Open source object-oriented logic programming language
-Release 2.30.1
+Release 2.30.2
 Copyright (c) 1998-2007 Paulo Moura.  All Rights Reserved.
 ================================================================
--- a/Logtalk/examples/NOTES.txt
+++ b/Logtalk/examples/NOTES.txt
@ -1,6 +1,6 @@
 ================================================================
 Logtalk - Open source object-oriented logic programming language
-Release 2.30.1
+Release 2.30.2
 Copyright (c) 1998-2007 Paulo Moura.  All Rights Reserved.
 ================================================================
--- a/Logtalk/examples/aliases/NOTES.txt
+++ b/Logtalk/examples/aliases/NOTES.txt
@ -1,6 +1,6 @@
 ================================================================
 Logtalk - Open source object-oriented logic programming language
-Release 2.30.1
+Release 2.30.2
 Copyright (c) 1998-2007 Paulo Moura.  All Rights Reserved.
 ================================================================
--- a/Logtalk/examples/aliases/SCRIPT.txt
+++ b/Logtalk/examples/aliases/SCRIPT.txt
@ -1,6 +1,6 @@
 ================================================================
 Logtalk - Open source object-oriented logic programming language
-Release 2.30.1
+Release 2.30.2
 Copyright (c) 1998-2007 Paulo Moura.  All Rights Reserved.
 ================================================================
--- a/Logtalk/examples/assignvars/NOTES.txt
+++ b/Logtalk/examples/assignvars/NOTES.txt
@ -1,6 +1,6 @@
 ================================================================
 Logtalk - Open source object-oriented logic programming language
-Release 2.30.1
+Release 2.30.2
 Copyright (c) 1998-2007 Paulo Moura.  All Rights Reserved.
 ================================================================
--- a/Logtalk/examples/assignvars/SCRIPT.txt
+++ b/Logtalk/examples/assignvars/SCRIPT.txt
@ -1,6 +1,6 @@
 ================================================================
 Logtalk - Open source object-oriented logic programming language
-Release 2.30.1
+Release 2.30.2
 Copyright (c) 1998-2007 Paulo Moura.  All Rights Reserved.
 ================================================================
--- a/Logtalk/examples/benchmarks/NOTES.txt
+++ b/Logtalk/examples/benchmarks/NOTES.txt
@ -1,6 +1,6 @@
 ================================================================
 Logtalk - Open source object-oriented logic programming language
-Release 2.30.1
+Release 2.30.2
 Copyright (c) 1998-2007 Paulo Moura.  All Rights Reserved.
 ================================================================
--- a/Logtalk/examples/benchmarks/SCRIPT.txt
+++ b/Logtalk/examples/benchmarks/SCRIPT.txt
@ -1,6 +1,6 @@
 ================================================================
 Logtalk - Open source object-oriented logic programming language
-Release 2.30.1
+Release 2.30.2
 Copyright (c) 1998-2007 Paulo Moura.  All Rights Reserved.
 ================================================================
--- a/Logtalk/examples/birds/NOTES.txt
+++ b/Logtalk/examples/birds/NOTES.txt
@ -1,6 +1,6 @@
 ================================================================
 Logtalk - Open source object-oriented logic programming language
-Release 2.30.1
+Release 2.30.2
 Copyright (c) 1998-2007 Paulo Moura.  All Rights Reserved.
 ================================================================
--- a/Logtalk/examples/birds/SCRIPT.txt
+++ b/Logtalk/examples/birds/SCRIPT.txt
@ -1,6 +1,6 @@
 ================================================================
 Logtalk - Open source object-oriented logic programming language
-Release 2.30.1
+Release 2.30.2
 Copyright (c) 1998-2007 Paulo Moura.  All Rights Reserved.
 ================================================================
--- a/Logtalk/examples/bottles/NOTES.txt
+++ b/Logtalk/examples/bottles/NOTES.txt
@ -1,6 +1,6 @@
 ================================================================
 Logtalk - Open source object-oriented logic programming language
-Release 2.30.1
+Release 2.30.2
 Copyright (c) 1998-2007 Paulo Moura.  All Rights Reserved.
 ================================================================
--- a/Logtalk/examples/bottles/SCRIPT.txt
+++ b/Logtalk/examples/bottles/SCRIPT.txt
@ -1,6 +1,6 @@
 ================================================================
 Logtalk - Open source object-oriented logic programming language
-Release 2.30.1
+Release 2.30.2
 Copyright (c) 1998-2007 Paulo Moura.  All Rights Reserved.
 ================================================================
--- a/Logtalk/examples/bricks/NOTES.txt
+++ b/Logtalk/examples/bricks/NOTES.txt
@ -1,6 +1,6 @@
 ================================================================
 Logtalk - Open source object-oriented logic programming language
-Release 2.30.1
+Release 2.30.2
 Copyright (c) 1998-2007 Paulo Moura.  All Rights Reserved.
 ================================================================
--- a/Logtalk/examples/bricks/SCRIPT.txt
+++ b/Logtalk/examples/bricks/SCRIPT.txt
@ -1,6 +1,6 @@
 ================================================================
 Logtalk - Open source object-oriented logic programming language
-Release 2.30.1
+Release 2.30.2
 Copyright (c) 1998-2007 Paulo Moura.  All Rights Reserved.
 ================================================================
--- a/Logtalk/examples/classvars/NOTES.txt
+++ b/Logtalk/examples/classvars/NOTES.txt
@ -1,6 +1,6 @@
 ================================================================
 Logtalk - Open source object-oriented logic programming language
-Release 2.30.1
+Release 2.30.2
 Copyright (c) 1998-2007 Paulo Moura.  All Rights Reserved.
 ================================================================
--- a/Logtalk/examples/classvars/SCRIPT.txt
+++ b/Logtalk/examples/classvars/SCRIPT.txt
@ -1,6 +1,6 @@
 ================================================================
 Logtalk - Open source object-oriented logic programming language
-Release 2.30.1
+Release 2.30.2
 Copyright (c) 1998-2007 Paulo Moura.  All Rights Reserved.
 ================================================================
--- a/Logtalk/examples/dcgs/NOTES.txt
+++ b/Logtalk/examples/dcgs/NOTES.txt
@ -1,6 +1,6 @@
 ================================================================
 Logtalk - Open source object-oriented logic programming language
-Release 2.30.1
+Release 2.30.2
 Copyright (c) 1998-2007 Paulo Moura.  All Rights Reserved.
 ================================================================
@ -35,6 +35,17 @@ objects and categories:
 	bypass
 		using the {} DCG construct together with the {} Logtalk control 
 		construct
 	tokenizer
 		natural language tokenizer example
 	macaddr
 		validator for MAC addresses
 	morse
 		decoder for Morse code messages; illustrate how to use scope 
 		directives to declare grammar rule non-terminals
 This folder contains an example ("tokenizer") adopted with permission from 
 a Michael A. Covington example (http://www.ai.uga.edu/~mc/). See the file 
 "tokenizer.lgt" for more details.
 This folder contains two examples of DCGs ("bom" and "faa") adopted with 
 permission from the Amzi! Prolog documentation. The documentation is 
--- a/Logtalk/examples/dcgs/SCRIPT.txt
+++ b/Logtalk/examples/dcgs/SCRIPT.txt
@ -1,6 +1,6 @@
 ================================================================
 Logtalk - Open source object-oriented logic programming language
-Release 2.30.1
+Release 2.30.2
 Copyright (c) 1998-2007 Paulo Moura.  All Rights Reserved.
 ================================================================
@ -20,13 +20,21 @@ Result = -9
 yes
-% Recognize MAC addresses:
+% recognize MAC addresses:
 | ?- macaddr::valid("00:1e:4a:ef:72:8b").
 yes
 % decode Morse code messages:
 ?- morse::phrase(morse(Message), "... --- ...").
 Message = [sos] 
 yes
 % solve a cellphone keypad encoded enigma:
 | ?- enigma::solve("4 96853 5683 86 4283 346637 9484 968 8664448", Message).
--- a/Logtalk/examples/dcgs/enigma.lgt
+++ b/Logtalk/examples/dcgs/enigma.lgt
@ -7,7 +7,6 @@
 		date is 2006/01/22,
 		comment is 'Example of using DCG rules to decrypt a enigma where words are made of numbers corresponding to the characters on a cellphone keypad.']).
 	:- public(solve/2).
 	:- public(solve/2).
 	:- mode(solve(+string, -list(atom)), zero_or_one).
 	:- info(solve/2, [
--- a/Logtalk/examples/dcgs/loader.lgt
+++ b/Logtalk/examples/dcgs/loader.lgt
@ -7,6 +7,7 @@
 		parsetree,
 		sentences,
 		tokenizer,
 		morse,
 		macaddr,
 		url,
 		xml,
--- a/Logtalk/examples/dcgs/morse.lgt
+++ b/Logtalk/examples/dcgs/morse.lgt
@ -0,0 +1,86 @@
 :- object(morse).
 	:- info([
 		version is 1.0,
 		author is 'Paulo Moura',
 		date is 2007/06/14,
 		comment is 'Morse code decoder.']).
 	:- public(morse//1).
 	:- mode(morse(-list(atom)), zero_or_one).
 	:- info(morse//1, [
 		comment is 'Recognizes a message in Morse code, returning the corresponding list of words.',
 		argnames is ['Words']]).
 	morse([Word| Words]) --> word(Characters), {atom_chars(Word, Characters)}, "  ", morse(Words).
 	morse([Word]) --> word(Characters), {atom_chars(Word, Characters)}.
 	word([Character| Characters]) --> character(LM), {code(Character, LM)}, " ", word(Characters).
 	word([Character]) --> character(Symbols), {code(Character, Symbols)}.
 	character([Symbol| Symbols]) --> symbol([Symbol]), character(Symbols).
 	character([Symbol]) --> symbol([Symbol]).
 	symbol(".") --> ".".
 	symbol("-") --> "-".
 	code(a, ".-").
 	code(b, "-...").
 	code(c, "-.-.").
 	code(d, "-..").
 	code(e, ".").
 	code(f, "..-.").
 	code(g, "--.").
 	code(h, "....").
 	code(i, "..").
 	code(j, ".---").
 	code(k, "-.-").
 	code(l, ".-..").
 	code(m, "--").
 	code(n, "-.").
 	code(o, "---").
 	code(p, ".--.").
 	code(q, "--.-").
 	code(r, ".-.").
 	code(s, "...").
 	code(t, "-").
 	code(u, "..-").
 	code(v, "...-").
 	code(w, ".--").
 	code(x, "-..-").
 	code(y, "-.--").
 	code(z, "--..").
 	code('1', ".----").
 	code('2', "..---").
 	code('3', "...--").
 	code('4', "....-").
 	code('5', ".....").
 	code('6', "-....").
 	code('7', "--...").
 	code('8', "---..").
 	code('9', "----.").
 	code('0', "-----").
 	code('.', ".-.-.-").
 	code(',', "--..--").
 	code('?', "..--..").
 	code('''', ".----.").
 	code('!', "-.-.--").
 	%code('!', "— — — ·").
 	code('/', "-..-.").
 	code('(', "-.--.").
 	code(')', "-.--.-").
 	code('&', ".-...").
 	code(':', "---...").
 	code(';', "-.-.-.").
 	code('=', "-...-").
 	code('+', ".-.-.").
 	code('-', "-....-").
 	code('_', "..--.-").
 	code('"', ".-..-.").
 	code('$', "...-..-").
 	code('@', ".--.-").
 :- end_object.
--- a/Logtalk/examples/diamonds/NOTES.txt
+++ b/Logtalk/examples/diamonds/NOTES.txt
@ -1,6 +1,6 @@
 ================================================================
 Logtalk - Open source object-oriented logic programming language
-Release 2.30.1
+Release 2.30.2
 Copyright (c) 1998-2007 Paulo Moura.  All Rights Reserved.
 ================================================================
--- a/Logtalk/examples/diamonds/SCRIPT.txt
+++ b/Logtalk/examples/diamonds/SCRIPT.txt
@ -1,6 +1,6 @@
 ================================================================
 Logtalk - Open source object-oriented logic programming language
-Release 2.30.1
+Release 2.30.2
 Copyright (c) 1998-2007 Paulo Moura.  All Rights Reserved.
 ================================================================
--- a/Logtalk/examples/dynpred/NOTES.txt
+++ b/Logtalk/examples/dynpred/NOTES.txt
@ -1,6 +1,6 @@
 ================================================================
 Logtalk - Open source object-oriented logic programming language
-Release 2.30.1
+Release 2.30.2
 Copyright (c) 1998-2007 Paulo Moura.  All Rights Reserved.
 ================================================================
--- a/Logtalk/examples/dynpred/SCRIPT.txt
+++ b/Logtalk/examples/dynpred/SCRIPT.txt
@ -1,6 +1,6 @@
 ================================================================
 Logtalk - Open source object-oriented logic programming language
-Release 2.30.1
+Release 2.30.2
 Copyright (c) 1998-2007 Paulo Moura.  All Rights Reserved.
 ================================================================
--- a/Logtalk/examples/encodings/NOTES.txt
+++ b/Logtalk/examples/encodings/NOTES.txt
@ -1,6 +1,6 @@
 ================================================================
 Logtalk - Open source object-oriented logic programming language
-Release 2.30.1
+Release 2.30.2
 Copyright (c) 1998-2007 Paulo Moura.  All Rights Reserved.
 ================================================================
--- a/Logtalk/examples/encodings/SCRIPT.txt
+++ b/Logtalk/examples/encodings/SCRIPT.txt
@ -1,6 +1,6 @@
 ================================================================
 Logtalk - Open source object-oriented logic programming language
-Release 2.30.1
+Release 2.30.2
 Copyright (c) 1998-2007 Paulo Moura.  All Rights Reserved.
 ================================================================
--- a/Logtalk/examples/engines/NOTES.txt
+++ b/Logtalk/examples/engines/NOTES.txt
@ -1,6 +1,6 @@
 ================================================================
 Logtalk - Open source object-oriented logic programming language
-Release 2.30.1
+Release 2.30.2
 Copyright (c) 1998-2007 Paulo Moura.  All Rights Reserved.
 ================================================================
--- a/Logtalk/examples/engines/SCRIPT.txt
+++ b/Logtalk/examples/engines/SCRIPT.txt
@ -1,6 +1,6 @@
 ================================================================
 Logtalk - Open source object-oriented logic programming language
-Release 2.30.1
+Release 2.30.2
 Copyright (c) 1998-2007 Paulo Moura.  All Rights Reserved.
 ================================================================
--- a/Logtalk/examples/errors/NOTES.txt
+++ b/Logtalk/examples/errors/NOTES.txt
@ -1,6 +1,6 @@
 ================================================================
 Logtalk - Open source object-oriented logic programming language
-Release 2.30.1
+Release 2.30.2
 Copyright (c) 1998-2007 Paulo Moura.  All Rights Reserved.
 ================================================================
--- a/Logtalk/examples/errors/SCRIPT.txt
+++ b/Logtalk/examples/errors/SCRIPT.txt
@ -1,6 +1,6 @@
 ================================================================
 Logtalk - Open source object-oriented logic programming language
-Release 2.30.1
+Release 2.30.2
 Copyright (c) 1998-2007 Paulo Moura.  All Rights Reserved.
 ================================================================
--- a/Logtalk/examples/expansion/NOTES.txt
+++ b/Logtalk/examples/expansion/NOTES.txt
@ -1,6 +1,6 @@
 ================================================================
 Logtalk - Open source object-oriented logic programming language
-Release 2.30.1
+Release 2.30.2
 Copyright (c) 1998-2007 Paulo Moura.  All Rights Reserved.
 ================================================================
--- a/Logtalk/examples/expansion/SCRIPT.txt
+++ b/Logtalk/examples/expansion/SCRIPT.txt
@ -1,6 +1,6 @@
 ================================================================
 Logtalk - Open source object-oriented logic programming language
-Release 2.30.1
+Release 2.30.2
 Copyright (c) 1998-2007 Paulo Moura.  All Rights Reserved.
 ================================================================
--- a/Logtalk/examples/hello_world/NOTES.txt
+++ b/Logtalk/examples/hello_world/NOTES.txt
@ -1,6 +1,6 @@
 ================================================================
 Logtalk - Open source object-oriented logic programming language
-Release 2.30.1
+Release 2.30.2
 Copyright (c) 1998-2007 Paulo Moura.  All Rights Reserved.
 ================================================================
--- a/Logtalk/examples/hello_world/SCRIPT.txt
+++ b/Logtalk/examples/hello_world/SCRIPT.txt
@ -1,6 +1,6 @@
 ================================================================
 Logtalk - Open source object-oriented logic programming language
-Release 2.30.1
+Release 2.30.2
 Copyright (c) 1998-2007 Paulo Moura.  All Rights Reserved.
 ================================================================
--- a/Logtalk/examples/hooks/NOTES.txt
+++ b/Logtalk/examples/hooks/NOTES.txt
@ -1,6 +1,6 @@
 ================================================================
 Logtalk - Open source object-oriented logic programming language
-Release 2.30.1
+Release 2.30.2
 Copyright (c) 1998-2007 Paulo Moura.  All Rights Reserved.
 ================================================================
--- a/Logtalk/examples/hooks/SCRIPT.txt
+++ b/Logtalk/examples/hooks/SCRIPT.txt
@ -1,6 +1,6 @@
 ================================================================
 Logtalk - Open source object-oriented logic programming language
-Release 2.30.1
+Release 2.30.2
 Copyright (c) 1998-2007 Paulo Moura.  All Rights Reserved.
 ================================================================
--- a/Logtalk/examples/inheritance/NOTES.txt
+++ b/Logtalk/examples/inheritance/NOTES.txt
@ -1,6 +1,6 @@
 ================================================================
 Logtalk - Open source object-oriented logic programming language
-Release 2.30.1
+Release 2.30.2
 Copyright (c) 1998-2007 Paulo Moura.  All Rights Reserved.
 ================================================================
--- a/Logtalk/examples/inheritance/SCRIPT.txt
+++ b/Logtalk/examples/inheritance/SCRIPT.txt
@ -1,6 +1,6 @@
 ================================================================
 Logtalk - Open source object-oriented logic programming language
-Release 2.30.1
+Release 2.30.2
 Copyright (c) 1998-2007 Paulo Moura.  All Rights Reserved.
 ================================================================
--- a/Logtalk/examples/instmethods/NOTES.txt
+++ b/Logtalk/examples/instmethods/NOTES.txt
@ -1,6 +1,6 @@
 ================================================================
 Logtalk - Open source object-oriented logic programming language
-Release 2.30.1
+Release 2.30.2
 Copyright (c) 1998-2007 Paulo Moura.  All Rights Reserved.
 ================================================================
--- a/Logtalk/examples/instmethods/SCRIPT.txt
+++ b/Logtalk/examples/instmethods/SCRIPT.txt
@ -1,6 +1,6 @@
 ================================================================
 Logtalk - Open source object-oriented logic programming language
-Release 2.30.1
+Release 2.30.2
 Copyright (c) 1998-2007 Paulo Moura.  All Rights Reserved.
 ================================================================
--- a/Logtalk/examples/lo/NOTES.txt
+++ b/Logtalk/examples/lo/NOTES.txt
@ -1,6 +1,6 @@
 ================================================================
 Logtalk - Open source object-oriented logic programming language
-Release 2.30.1
+Release 2.30.2
 Copyright (c) 1998-2007 Paulo Moura.  All Rights Reserved.
 ================================================================
--- a/Logtalk/examples/lo/planner/NOTES.txt
+++ b/Logtalk/examples/lo/planner/NOTES.txt
@ -1,6 +1,6 @@
 ================================================================
 Logtalk - Open source object-oriented logic programming language
-Release 2.30.1
+Release 2.30.2
 Copyright (c) 1998-2007 Paulo Moura.  All Rights Reserved.
 ================================================================
--- a/Logtalk/examples/lo/planner/SCRIPT.txt
+++ b/Logtalk/examples/lo/planner/SCRIPT.txt
@ -1,6 +1,6 @@
 ================================================================
 Logtalk - Open source object-oriented logic programming language
-Release 2.30.1
+Release 2.30.2
 Copyright (c) 1998-2007 Paulo Moura.  All Rights Reserved.
 ================================================================
--- a/Logtalk/examples/lo/travellers/NOTES.txt
+++ b/Logtalk/examples/lo/travellers/NOTES.txt
@ -1,6 +1,6 @@
 ================================================================
 Logtalk - Open source object-oriented logic programming language
-Release 2.30.1
+Release 2.30.2
 Copyright (c) 1998-2007 Paulo Moura.  All Rights Reserved.
 ================================================================
--- a/Logtalk/examples/lo/travellers/SCRIPT.txt
+++ b/Logtalk/examples/lo/travellers/SCRIPT.txt
@ -1,6 +1,6 @@
 ================================================================
 Logtalk - Open source object-oriented logic programming language
-Release 2.30.1
+Release 2.30.2
 Copyright (c) 1998-2007 Paulo Moura.  All Rights Reserved.
 ================================================================
--- a/Logtalk/examples/logic/NOTES.txt
+++ b/Logtalk/examples/logic/NOTES.txt
@ -1,6 +1,6 @@
 ================================================================
 Logtalk - Open source object-oriented logic programming language
-Release 2.30.1
+Release 2.30.2
 Copyright (c) 1998-2007 Paulo Moura.  All Rights Reserved.
 ================================================================
--- a/Logtalk/examples/logic/SCRIPT.txt
+++ b/Logtalk/examples/logic/SCRIPT.txt
@ -1,6 +1,6 @@
 ================================================================
 Logtalk - Open source object-oriented logic programming language
-Release 2.30.1
+Release 2.30.2
 Copyright (c) 1998-2007 Paulo Moura.  All Rights Reserved.
 ================================================================
--- a/Logtalk/examples/lpa/NOTES.txt
+++ b/Logtalk/examples/lpa/NOTES.txt
@ -1,6 +1,6 @@
 ================================================================
 Logtalk - Open source object-oriented logic programming language
-Release 2.30.1
+Release 2.30.2
 Copyright (c) 1998-2007 Paulo Moura.  All Rights Reserved.
 ================================================================
--- a/Logtalk/examples/lpa/faults/NOTES.txt
+++ b/Logtalk/examples/lpa/faults/NOTES.txt
@ -1,6 +1,6 @@
 ================================================================
 Logtalk - Open source object-oriented logic programming language
-Release 2.30.1
+Release 2.30.2
 Copyright (c) 1998-2007 Paulo Moura.  All Rights Reserved.
 ================================================================
--- a/Logtalk/examples/lpa/faults/SCRIPT.txt
+++ b/Logtalk/examples/lpa/faults/SCRIPT.txt
@ -1,6 +1,6 @@
 ================================================================
 Logtalk - Open source object-oriented logic programming language
-Release 2.30.1
+Release 2.30.2
 Copyright (c) 1998-2007 Paulo Moura.  All Rights Reserved.
 ================================================================
--- a/Logtalk/examples/lpa/timetables/NOTES.txt
+++ b/Logtalk/examples/lpa/timetables/NOTES.txt
@ -1,6 +1,6 @@
 ================================================================
 Logtalk - Open source object-oriented logic programming language
-Release 2.30.1
+Release 2.30.2
 Copyright (c) 1998-2007 Paulo Moura.  All Rights Reserved.
 ================================================================
--- a/Logtalk/examples/lpa/timetables/SCRIPT.txt
+++ b/Logtalk/examples/lpa/timetables/SCRIPT.txt
@ -1,6 +1,6 @@
 ================================================================
 Logtalk - Open source object-oriented logic programming language
-Release 2.30.1
+Release 2.30.2
 Copyright (c) 1998-2007 Paulo Moura.  All Rights Reserved.
 ================================================================
--- a/Logtalk/examples/metainterpreters/NOTES.txt
+++ b/Logtalk/examples/metainterpreters/NOTES.txt
@ -1,6 +1,6 @@
 ================================================================
 Logtalk - Open source object-oriented logic programming language
-Release 2.30.1
+Release 2.30.2
 Copyright (c) 1998-2007 Paulo Moura.  All Rights Reserved.
 ================================================================
--- a/Logtalk/examples/metainterpreters/SCRIPT.txt
+++ b/Logtalk/examples/metainterpreters/SCRIPT.txt
@ -1,6 +1,6 @@
 ================================================================
 Logtalk - Open source object-oriented logic programming language
-Release 2.30.1
+Release 2.30.2
 Copyright (c) 1998-2007 Paulo Moura.  All Rights Reserved.
 ================================================================
--- a/Logtalk/examples/metapredicates/NOTES.txt
+++ b/Logtalk/examples/metapredicates/NOTES.txt
@ -1,6 +1,6 @@
 ================================================================
 Logtalk - Open source object-oriented logic programming language
-Release 2.30.1
+Release 2.30.2
 Copyright (c) 1998-2007 Paulo Moura.  All Rights Reserved.
 ================================================================
--- a/Logtalk/examples/metapredicates/SCRIPT.txt
+++ b/Logtalk/examples/metapredicates/SCRIPT.txt
@ -1,6 +1,6 @@
 ================================================================
 Logtalk - Open source object-oriented logic programming language
-Release 2.30.1
+Release 2.30.2
 Copyright (c) 1998-2007 Paulo Moura.  All Rights Reserved.
 ================================================================
--- a/Logtalk/examples/mi/NOTES.txt
+++ b/Logtalk/examples/mi/NOTES.txt
@ -1,6 +1,6 @@
 ================================================================
 Logtalk - Open source object-oriented logic programming language
-Release 2.30.1
+Release 2.30.2
 Copyright (c) 1998-2007 Paulo Moura.  All Rights Reserved.
 ================================================================
--- a/Logtalk/examples/mi/SCRIPT.txt
+++ b/Logtalk/examples/mi/SCRIPT.txt
@ -1,6 +1,6 @@
 ================================================================
 Logtalk - Open source object-oriented logic programming language
-Release 2.30.1
+Release 2.30.2
 Copyright (c) 1998-2007 Paulo Moura.  All Rights Reserved.
 ================================================================
--- a/Logtalk/examples/miscellaneous/NOTES.txt
+++ b/Logtalk/examples/miscellaneous/NOTES.txt
@ -1,6 +1,6 @@
 ================================================================
 Logtalk - Open source object-oriented logic programming language
-Release 2.30.1
+Release 2.30.2
 Copyright (c) 1998-2007 Paulo Moura.  All Rights Reserved.
 ================================================================
--- a/Logtalk/examples/miscellaneous/SCRIPT.txt
+++ b/Logtalk/examples/miscellaneous/SCRIPT.txt
@ -1,6 +1,6 @@
 ================================================================
 Logtalk - Open source object-oriented logic programming language
-Release 2.30.1
+Release 2.30.2
 Copyright (c) 1998-2007 Paulo Moura.  All Rights Reserved.
 ================================================================
--- a/Logtalk/examples/modules/NOTES.txt
+++ b/Logtalk/examples/modules/NOTES.txt
@ -1,6 +1,6 @@
 ================================================================
 Logtalk - Open source object-oriented logic programming language
-Release 2.30.1
+Release 2.30.2
 Copyright (c) 1998-2007 Paulo Moura.  All Rights Reserved.
 ================================================================
--- a/Logtalk/examples/modules/SCRIPT.txt
+++ b/Logtalk/examples/modules/SCRIPT.txt
@ -1,6 +1,6 @@
 ================================================================
 Logtalk - Open source object-oriented logic programming language
-Release 2.30.1
+Release 2.30.2
 Copyright (c) 1998-2007 Paulo Moura.  All Rights Reserved.
 ================================================================
--- a/Logtalk/examples/msglog/NOTES.txt
+++ b/Logtalk/examples/msglog/NOTES.txt
@ -1,6 +1,6 @@
 ================================================================
 Logtalk - Open source object-oriented logic programming language
-Release 2.30.1
+Release 2.30.2
 Copyright (c) 1998-2007 Paulo Moura.  All Rights Reserved.
 ================================================================
--- a/Logtalk/examples/msglog/SCRIPT.txt
+++ b/Logtalk/examples/msglog/SCRIPT.txt
@ -1,6 +1,6 @@
 ================================================================
 Logtalk - Open source object-oriented logic programming language
-Release 2.30.1
+Release 2.30.2
 Copyright (c) 1998-2007 Paulo Moura.  All Rights Reserved.
 ================================================================
--- a/Logtalk/examples/operators/NOTES.txt
+++ b/Logtalk/examples/operators/NOTES.txt
@ -1,6 +1,6 @@
 ================================================================
 Logtalk - Open source object-oriented logic programming language
-Release 2.30.1
+Release 2.30.2
 Copyright (c) 1998-2007 Paulo Moura.  All Rights Reserved.
 ================================================================
--- a/Logtalk/examples/operators/SCRIPT.txt
+++ b/Logtalk/examples/operators/SCRIPT.txt
@ -1,6 +1,6 @@
 ================================================================
 Logtalk - Open source object-oriented logic programming language
-Release 2.30.1
+Release 2.30.2
 Copyright (c) 1998-2007 Paulo Moura.  All Rights Reserved.
 ================================================================
--- a/Logtalk/examples/parametric/NOTES.txt
+++ b/Logtalk/examples/parametric/NOTES.txt
@ -1,6 +1,6 @@
 ================================================================
 Logtalk - Open source object-oriented logic programming language
-Release 2.30.1
+Release 2.30.2
 Copyright (c) 1998-2007 Paulo Moura.  All Rights Reserved.
 ================================================================
--- a/Logtalk/examples/parametric/SCRIPT.txt
+++ b/Logtalk/examples/parametric/SCRIPT.txt
@ -1,6 +1,6 @@
 ================================================================
 Logtalk - Open source object-oriented logic programming language
-Release 2.30.1
+Release 2.30.2
 Copyright (c) 1998-2007 Paulo Moura.  All Rights Reserved.
 ================================================================
@ -71,3 +71,18 @@ NR = rectangle(2, 1, 3, 4)
 X2 = 3
 Y2 = 4 
 yes
 % some queries with parametric objects that define "setter"
 % methods that return updated object identifiers:
 | ?- person(sally, 20)::grow_older(NewId).
 NewId = person(sally, 21) 
 yes
 | ?- employee(sally, 21, 1200)::give_raise(250, NewId).
 NewId = employee(sally, 21, 1450) 
 yes
--- a/Logtalk/examples/parametric/parametric.lgt
+++ b/Logtalk/examples/parametric/parametric.lgt
@ -201,7 +201,7 @@
 /*	The following parametric object illustrates a solution for implementing 
-	modifiable object state. The idea is to represent object state by using 
+	backtracable object state. The idea is to represent object state by using 
 	object parameters, defining "setter" predicates/methods that return the 
 	updated object identifier.
 */
@ -276,3 +276,74 @@
 */
 :- end_object.
 /*	The following parametric objects show a solution for dealing with inheritance when
 	defining "setter" predicates/methods that return updated object identifiers.
 */
 :- object(person(_Name, _Age)).
 	:- info([
 		version is 1.0,
 		author is 'Paulo Moura',
 		date is 2007/6/19,
 		comment is 'A simple representation for people using parametric objects.',
 		parnames is ['Name', 'Age']]).
 	:- public(grow_older/1).
 	:- mode(grow_older(-object_identifier), one).
 	:- info(grow_older/1,
 		[comment is 'Increments the person''s age, returning the updated object identifier.',
 		 argnames is ['NewId']]).
 	grow_older(NewId) :-
 		::age(OldAge, NewAge, NewId),
 		NewAge is OldAge + 1.
 	:- protected(age/3).
 	:- mode(age(?integer, ?integer, -object_identifier), zero_or_one).
 	:- info(age/3,
 		[comment is 'Rectangle area.',
 		 argnames is ['OldAge', 'NewAge', 'NewId']]).
 	age(OldAge, NewAge, person(Name, NewAge)) :-	% this rule is compiled into a fact due to
 		this(person(Name, OldAge)).					% compilation of the this/1 call inline
 :- end_object.
 :- object(employee(Name, Age, _Salary),
 	extends(person(Name, Age))).
 	:- info([
 		version is 1.0,
 		author is 'Paulo Moura',
 		date is 2007/6/19,
 		comment is 'A simple representation for employees using parametric objects.',
 		parnames is ['Name', 'Age', 'Salary']]).
 	:- public(give_raise/2).
 	:- mode(give_raise(+integer, -object_identifier), one).
 	:- info(give_raise/2,
 		[comment is 'Gives a raise to the employee, returning the updated object identifier.',
 		 argnames is ['Amount', 'NewId']]).
 	give_raise(Amount, NewId) :-
 		::salary(OldSalary, NewSalary, NewId),
 		NewSalary is OldSalary + Amount.
 	:- protected(salary/3).
 	:- mode(salary(?integer, ?integer, -object_identifier), zero_or_one).
 	:- info(salary/3,
 		[comment is 'Rectangle area.',
 		 argnames is ['OldSalary', 'NewSalary', 'NewId']]).
 	salary(OldSalary, NewSalary, employee(Name, Age, NewSalary)) :-
 		this(employee(Name, Age, OldSalary)).
 	age(OldAge, NewAge, employee(Salary, Name, NewAge)) :-
 		this(employee(Salary, Name, OldAge)).
 :- end_object.
--- a/Logtalk/examples/points/NOTES.txt
+++ b/Logtalk/examples/points/NOTES.txt
@ -1,6 +1,6 @@
 ================================================================
 Logtalk - Open source object-oriented logic programming language
-Release 2.30.1
+Release 2.30.2
 Copyright (c) 1998-2007 Paulo Moura.  All Rights Reserved.
 ================================================================
--- a/Logtalk/examples/points/SCRIPT.txt
+++ b/Logtalk/examples/points/SCRIPT.txt
@ -1,6 +1,6 @@
 ================================================================
 Logtalk - Open source object-oriented logic programming language
-Release 2.30.1
+Release 2.30.2
 Copyright (c) 1998-2007 Paulo Moura.  All Rights Reserved.
 ================================================================
--- a/Logtalk/examples/polygons/NOTES.txt
+++ b/Logtalk/examples/polygons/NOTES.txt
@ -1,6 +1,6 @@
 ================================================================
 Logtalk - Open source object-oriented logic programming language
-Release 2.30.1
+Release 2.30.2
 Copyright (c) 1998-2007 Paulo Moura.  All Rights Reserved.
 ================================================================
--- a/Logtalk/examples/polygons/SCRIPT.txt
+++ b/Logtalk/examples/polygons/SCRIPT.txt
@ -1,6 +1,6 @@
 ================================================================
 Logtalk - Open source object-oriented logic programming language
-Release 2.30.1
+Release 2.30.2
 Copyright (c) 1998-2007 Paulo Moura.  All Rights Reserved.
 ================================================================
--- a/Logtalk/examples/profiling/NOTES.txt
+++ b/Logtalk/examples/profiling/NOTES.txt
@ -1,6 +1,6 @@
 ================================================================
 Logtalk - Open source object-oriented logic programming language
-Release 2.30.1
+Release 2.30.2
 Copyright (c) 1998-2007 Paulo Moura.  All Rights Reserved.
 ================================================================
--- a/Logtalk/examples/profiling/SCRIPT.txt
+++ b/Logtalk/examples/profiling/SCRIPT.txt
@ -1,6 +1,6 @@
 ================================================================
 Logtalk - Open source object-oriented logic programming language
-Release 2.30.1
+Release 2.30.2
 Copyright (c) 1998-2007 Paulo Moura.  All Rights Reserved.
 ================================================================
--- a/Logtalk/examples/proxies/NOTES.txt
+++ b/Logtalk/examples/proxies/NOTES.txt
@ -1,6 +1,6 @@
 ================================================================
 Logtalk - Open source object-oriented logic programming language
-Release 2.30.1
+Release 2.30.2
 Copyright (c) 1998-2007 Paulo Moura.  All Rights Reserved.
 ================================================================
--- a/Logtalk/examples/proxies/SCRIPT.txt
+++ b/Logtalk/examples/proxies/SCRIPT.txt
@ -1,6 +1,6 @@
 ================================================================
 Logtalk - Open source object-oriented logic programming language
-Release 2.30.1
+Release 2.30.2
 Copyright (c) 1998-2007 Paulo Moura.  All Rights Reserved.
 ================================================================
--- a/Logtalk/examples/puzzles/NOTES.txt
+++ b/Logtalk/examples/puzzles/NOTES.txt
@ -1,6 +1,6 @@
 ================================================================
 Logtalk - Open source object-oriented logic programming language
-Release 2.30.1
+Release 2.30.2
 Copyright (c) 1998-2007 Paulo Moura.  All Rights Reserved.
 ================================================================
--- a/Logtalk/examples/puzzles/SCRIPT.txt
+++ b/Logtalk/examples/puzzles/SCRIPT.txt
@ -1,6 +1,6 @@
 ================================================================
 Logtalk - Open source object-oriented logic programming language
-Release 2.30.1
+Release 2.30.2
 Copyright (c) 1998-2007 Paulo Moura.  All Rights Reserved.
 ================================================================
--- a/Logtalk/examples/reflection/NOTES.txt
+++ b/Logtalk/examples/reflection/NOTES.txt
@ -1,6 +1,6 @@
 ================================================================
 Logtalk - Open source object-oriented logic programming language
-Release 2.30.1
+Release 2.30.2
 Copyright (c) 1998-2007 Paulo Moura.  All Rights Reserved.
 ================================================================
--- a/Logtalk/examples/reflection/SCRIPT.txt
+++ b/Logtalk/examples/reflection/SCRIPT.txt
@ -1,6 +1,6 @@
 ================================================================
 Logtalk - Open source object-oriented logic programming language
-Release 2.30.1
+Release 2.30.2
 Copyright (c) 1998-2007 Paulo Moura.  All Rights Reserved.
 ================================================================
--- a/Logtalk/examples/relations/NOTES.txt
+++ b/Logtalk/examples/relations/NOTES.txt
@ -1,6 +1,6 @@
 ================================================================
 Logtalk - Open source object-oriented logic programming language
-Release 2.30.1
+Release 2.30.2
 Copyright (c) 1998-2007 Paulo Moura.  All Rights Reserved.
 ================================================================
--- a/Logtalk/examples/relations/SCRIPT.txt
+++ b/Logtalk/examples/relations/SCRIPT.txt
@ -1,6 +1,6 @@
 ================================================================
 Logtalk - Open source object-oriented logic programming language
-Release 2.30.1
+Release 2.30.2
 Copyright (c) 1998-2007 Paulo Moura.  All Rights Reserved.
 ================================================================
--- a/Logtalk/examples/roots/NOTES.txt
+++ b/Logtalk/examples/roots/NOTES.txt
@ -1,6 +1,6 @@
 ================================================================
 Logtalk - Open source object-oriented logic programming language
-Release 2.30.1
+Release 2.30.2
 Copyright (c) 1998-2007 Paulo Moura.  All Rights Reserved.
 ================================================================
--- a/Logtalk/examples/roots/SCRIPT.txt
+++ b/Logtalk/examples/roots/SCRIPT.txt
@ -1,6 +1,6 @@
 ================================================================
 Logtalk - Open source object-oriented logic programming language
-Release 2.30.1
+Release 2.30.2
 Copyright (c) 1998-2007 Paulo Moura.  All Rights Reserved.
 ================================================================
--- a/Logtalk/examples/searching/NOTES.txt
+++ b/Logtalk/examples/searching/NOTES.txt
@ -1,6 +1,6 @@
 ================================================================
 Logtalk - Open source object-oriented logic programming language
-Release 2.30.1
+Release 2.30.2
 Copyright (c) 1998-2007 Paulo Moura.  All Rights Reserved.
 ================================================================
--- a/Logtalk/examples/searching/SCRIPT.txt
+++ b/Logtalk/examples/searching/SCRIPT.txt
@ -1,6 +1,6 @@
 ================================================================
 Logtalk - Open source object-oriented logic programming language
-Release 2.30.1
+Release 2.30.2
 Copyright (c) 1998-2007 Paulo Moura.  All Rights Reserved.
 ================================================================
--- a/Logtalk/examples/shapes/NOTES.txt
+++ b/Logtalk/examples/shapes/NOTES.txt
@ -1,6 +1,6 @@
 ================================================================
 Logtalk - Open source object-oriented logic programming language
-Release 2.30.1
+Release 2.30.2
 Copyright (c) 1998-2007 Paulo Moura.  All Rights Reserved.
 ================================================================
--- a/Logtalk/examples/shapes/ch/NOTES.txt
+++ b/Logtalk/examples/shapes/ch/NOTES.txt
@ -1,6 +1,6 @@
 ================================================================
 Logtalk - Open source object-oriented logic programming language
-Release 2.30.1
+Release 2.30.2
 Copyright (c) 1998-2007 Paulo Moura.  All Rights Reserved.
 ================================================================
--- a/Logtalk/examples/shapes/ch/SCRIPT.txt
+++ b/Logtalk/examples/shapes/ch/SCRIPT.txt
@ -1,6 +1,6 @@
 ================================================================
 Logtalk - Open source object-oriented logic programming language
-Release 2.30.1
+Release 2.30.2
 Copyright (c) 1998-2007 Paulo Moura.  All Rights Reserved.
 ================================================================
--- a/Logtalk/examples/shapes/ph/NOTES.txt
+++ b/Logtalk/examples/shapes/ph/NOTES.txt
@ -1,6 +1,6 @@
 ================================================================
 Logtalk - Open source object-oriented logic programming language
-Release 2.30.1
+Release 2.30.2
 Copyright (c) 1998-2007 Paulo Moura.  All Rights Reserved.
 ================================================================
--- a/Show More
+++ b/Show More