Logtalk 2.15.4 release files.

git-svn-id: https://yap.svn.sf.net/svnroot/yap/trunk@843 b08c6af1-5177-4d33-ba66-4b1c6b8b522a

Logtalk/QUICK_START

@@ -1,6 +1,6 @@
 =================================================================
 Logtalk - Object oriented extension to Prolog
-Release 2.15.3
+Release 2.15.4
 
 Copyright (c) 1998-2003 Paulo Moura.  All Rights Reserved.
 =================================================================

Logtalk/README

@@ -1,6 +1,6 @@
 =================================================================
 Logtalk - Object oriented extension to Prolog
-Release 2.15.3
+Release 2.15.4
 
 Copyright (c) 1998-2003 Paulo Moura.  All Rights Reserved.
 =================================================================
@@ -103,7 +103,7 @@ Logtalk since the first public version. Read it carefully if you have
 been using a previous Logtalk version.
 
 The file QUICK_START provides quick instructions for those of you in a hurry 
-to run Logtalk, provided that your usual Prolog compiler is supported.
+to run Logtalk, provided that your favorite Prolog compiler is supported.
 
 
 7. UPGRADING
@@ -114,7 +114,7 @@ instructions on how to upgrade your programs to run under this new version.
 
 8. CONTRIBUTIONS
 
-Contributions, constructive criticisms, code and suggestions are always 
+Contributions, constructive criticisms, code, and suggestions are always 
 welcome. If you want to contribute to this project, drop me a line to the 
 support address given above.
 

Logtalk/RELEASE_NOTES

@@ -1,6 +1,6 @@
 =================================================================
 Logtalk - Object oriented extension to Prolog
-Release 2.15.3
+Release 2.15.4
 
 Copyright (c) 1998-2003 Paulo Moura.  All Rights Reserved.
 =================================================================
@@ -10,6 +10,26 @@ RELEASE NOTES
 =============
 
 
+2.15.4 - July 9, 2003
+
+	Corrected a spurious backtracking bug in the DCG rule translator. Added 
+	two more examples of DCGs.
+
+	New config file for XSB 2.6. Updated Logtalk compiler to compile cleanly 
+	under XSB after applying the patch described in configs/NOTES.
+
+	Updated SWI-Prolog config file to hide compiled entity predicates (requires 
+	SWI-Prolog 5.2.3 or later version). New optional file configs/swihook.pl 
+	contains hook code that allows Logtalk entities to be compiled and loaded 
+	using SWI-Prolog load_files/2 and consult/1 predicates.
+
+	Syntax definition file for the Hydra 1.1 (MacOS X) text editor providing 
+	syntax coloring for editing Logtalk source files.
+
+	Updated syntax coloring files for jEdit, NEdit, Vim, and TextPad in order 
+	to recognize character code constants (0'x) and the DCG operator -->/2.
+
+
 2.15.3 - June 27, 2003
 
 	Updated experimental support for DCG rules to prevent over-simplification 

Logtalk/UPGRADING

@@ -1,6 +1,6 @@
 =================================================================
 Logtalk - Object oriented extension to Prolog
-Release 2.15.3
+Release 2.15.4
 
 Copyright (c) 1998-2003 Paulo Moura.  All Rights Reserved.
 =================================================================

Logtalk/examples/NOTES

@@ -1,6 +1,6 @@
 =================================================================
 Logtalk - Object oriented extension to Prolog
-Release 2.15.3
+Release 2.15.4
 
 Copyright (c) 1998-2003 Paulo Moura.  All Rights Reserved.
 =================================================================

Logtalk/examples/birds/NOTES

@@ -1,6 +1,6 @@
 =================================================================
 Logtalk - Object oriented extension to Prolog
-Release 2.15.3
+Release 2.15.4
 
 Copyright (c) 1998-2003 Paulo Moura.  All Rights Reserved.
 =================================================================

Logtalk/examples/birds/SCRIPT

@@ -1,6 +1,6 @@
 =================================================================
 Logtalk - Object oriented extension to Prolog
-Release 2.15.3
+Release 2.15.4
 
 Copyright (c) 1998-2003 Paulo Moura.  All Rights Reserved.
 =================================================================

Logtalk/examples/bricks/NOTES

@@ -1,6 +1,6 @@
 =================================================================
 Logtalk - Object oriented extension to Prolog
-Release 2.15.3
+Release 2.15.4
 
 Copyright (c) 1998-2003 Paulo Moura.  All Rights Reserved.
 =================================================================

Logtalk/examples/bricks/SCRIPT

@@ -1,6 +1,6 @@
 =================================================================
 Logtalk - Object oriented extension to Prolog
-Release 2.15.3
+Release 2.15.4
 
 Copyright (c) 1998-2003 Paulo Moura.  All Rights Reserved.
 =================================================================

Logtalk/examples/classvars/NOTES

@@ -1,6 +1,6 @@
 =================================================================
 Logtalk - Object oriented extension to Prolog
-Release 2.15.3
+Release 2.15.4
 
 Copyright (c) 1998-2003 Paulo Moura.  All Rights Reserved.
 =================================================================

Logtalk/examples/classvars/SCRIPT

@@ -1,6 +1,6 @@
 =================================================================
 Logtalk - Object oriented extension to Prolog
-Release 2.15.3
+Release 2.15.4
 
 Copyright (c) 1998-2003 Paulo Moura.  All Rights Reserved.
 =================================================================

Logtalk/examples/dcgs/NOTES

@@ -1,6 +1,6 @@
 =================================================================
 Logtalk - Object oriented extension to Prolog
-Release 2.15.3
+Release 2.15.4
 
 Copyright (c) 1998-2003 Paulo Moura.  All Rights Reserved.
 =================================================================

Logtalk/examples/dcgs/SCRIPT

@@ -1,6 +1,6 @@
 =================================================================
 Logtalk - Object oriented extension to Prolog
-Release 2.15.3
+Release 2.15.4
 
 Copyright (c) 1998-2003 Paulo Moura.  All Rights Reserved.
 =================================================================
@@ -33,3 +33,45 @@ yes
 
 Tree = Tree = s(np(d(the), n(girl)), vp(v(likes), np(d(the), n(boy))))
 yes
+
+
+% conversion between compound terms and XML
+
+| ?- xml::convert(word(child, children), word(singular, plural), XML).
+
+XML = '<word><singular>child</singular><plural>children</plural></word>' 
+yes
+
+| ?- xml::convert(Term, Interpretation, '<word><singular>child</singular><plural>children</plural></word>').
+
+Term = word(child, children)
+Interpretation = word(singular, plural) 
+yes
+
+
+% parsing URLs
+
+| ?- url::parse("http://www.logtalk.org", Components).
+
+Components = [protocol(http), address([www, logtalk, org]), path([]), file('')] 
+yes
+
+| ?- url::parse("http://www.logtalk.org/", Components).
+
+Components = [protocol(http), address([www, logtalk, org]), path(['']), file('')] 
+yes
+
+| ?- url::parse("http://www.logtalk.org/cvs", Components).
+
+Components = [protocol(http), address([www, logtalk, org]), path([cvs]), file('')] 
+yes
+
+| ?- url::parse("http://www.logtalk.org/cvs.html", Components).
+
+Components = [protocol(http), address([www, logtalk, org]), path([]), file('cvs.html')] 
+yes
+
+| ?- url::parse("http://193.136.64.5/files/update", Components).
+
+Components = [protocol(http), address([193, 136, 64, 5]), path([files, update]), file('')] 
+yes

Logtalk/examples/dcgs/dcgs.loader

@@ -7,4 +7,6 @@
 		determiners,
 		nouns,
 		verbs,
-		sentence])). 
+		sentence,
+		url,
+		xml])). 

Logtalk/examples/dcgs/url.lgt

@@ -0,0 +1,67 @@
+:- object(url).
+
+
+	:- info([
+		version is 1.0,
+		date is 2003/7/7,
+		author is 'Paulo Moura',
+		comment is 'Simple example of URL parsing.']).
+
+
+	:- public(parse/2).
+
+	:- mode(parse(@list, -list), zero_or_one).
+
+	:- info(parse/2, [
+		comment is 'Parses a URL into its components.',
+		argnames is ['URL', 'Components']]).
+
+
+	parse(URL, [protocol(Protocol), address(Address), path(Path), file(File)]) :-
+		phrase(url(Protocol, Address, Path, File), URL).
+
+
+	url(Protocol, Address, Path, File) --> protocol(Protocol), "://", address(Address), path(Path), file(File).
+
+
+	protocol(ftp) --> "ftp".
+	protocol(http) --> "http".
+	protocol(https) --> "https".
+	protocol(rtsp) --> "rtsp".
+
+
+	address(Address) --> ip_number(Address).
+	address([Identifier| Identifiers]) --> identifier(Identifier), dot_identifiers(Identifiers).
+
+
+	ip_number([N1, N2, N3, N4]) --> ip_subnumber(N1), ".", ip_subnumber(N2), ".", ip_subnumber(N3), ".", ip_subnumber(N4).
+
+	ip_subnumber(N) --> [N1, N2, N3], {N is N3 - 0'0 + 10*(N2 - 0'0) + 100*(N1 - 0'0), N >= 0, N =< 255}.
+	ip_subnumber(N) --> [N1, N2], {N is N2 - 0'0 + 10*(N1 - 0'0), N >= 0, N =< 255}.
+	ip_subnumber(N) --> [N1], {N is N1 - 0'0, N >= 0, N =< 255}.
+
+
+	identifier(Identifier) --> characters(Codes), {atom_codes(Identifier, Codes)}.
+
+
+	characters([]) --> [].
+	characters([Code| Codes]) --> [Code], {character(Code)}, characters(Codes).
+
+
+	character(Code) :- Code @>= 0'a, Code @=< 0'z, !.
+	character(Code) :- Code @>= 0'A, Code @=< 0'Z.
+
+
+	dot_identifiers([]) --> [].
+	dot_identifiers([Identifier| Identifiers]) --> ".", identifier(Identifier), dot_identifiers(Identifiers).
+
+
+	path([]) --> [].
+	path([Identifier| Path]) --> "/", identifier(Identifier), path(Path).
+
+
+	file('') --> [].
+	file(File) --> "/", identifier(Name), ".", identifier(Extension), {atom_concat(Name, '.', Aux), atom_concat(Aux, Extension, File)}.
+
+
+:- end_object.

Logtalk/examples/dcgs/xml.lgt

@@ -0,0 +1,78 @@
+
+:- object(xml).
+
+
+	:- info([
+		version is 1.0,
+		date is 2003/7/7,
+		author is 'Paulo Moura',
+		comment is 'Conversion between compound terms and XML.']).
+
+
+	:- public(convert/3).
+
+	:- mode(convert(@compound, @compound, -atom), zero_or_one).
+	:- mode(convert(-compound, -compound, +atom), zero_or_one).
+
+	:- info(convert/3, [
+		comment is 'Converts between a compound term and an interpretation and XML.',
+		argnames is ['Term', 'Interpretation', 'XML']]).
+
+
+	convert(Term, Interpretation, XML) :-
+		var(XML) ->
+			phrase(term(Term, Interpretation), List),
+			atom_codes(XML, List)
+			;
+			atom_codes(XML, List),
+			phrase(term(Term, Interpretation), List).
+
+
+	term(Term, Interpretation) -->
+		{nonvar(Term), nonvar(Interpretation),
+		 Interpretation =.. [Functor| Tags], Term =.. [Functor| Args]},
+		open_tag(Functor),
+		arguments(Tags, Args),
+		close_tag(Functor).
+
+	term(Term, Interpretation) -->
+		{var(Term), var(Interpretation)},
+		open_tag(Functor),
+		arguments(Tags, Args),
+		close_tag(Functor),
+		{Interpretation =.. [Functor| Tags], Term =.. [Functor| Args]}.
+
+
+	arguments([], []) -->
+		[].
+
+	arguments([Tag| Tags], [Arg| Args]) -->
+		open_tag(Tag),
+		value(Arg),
+		close_tag(Tag),
+		arguments(Tags, Args).
+
+
+	open_tag(Tag) -->
+		"<", value(Tag), ">".
+
+	close_tag(Tag) -->
+		"</", value(Tag), ">".
+
+
+	value(Value) -->
+		{nonvar(Value), atom_codes(Value, Codes)}, characters(Codes).
+
+	value(Value) -->
+		{var(Value)}, characters(Codes), {atom_codes(Value, Codes)}.
+
+
+	characters([]) --> [].
+	characters([Code| Codes]) --> [Code], {character(Code)}, characters(Codes).
+
+
+	character(Code) :- Code @>= 0'a, Code @=< 0'z, !.
+	character(Code) :- Code @>= 0'A, Code @=< 0'Z.
+
+
+:- end_object.

Logtalk/examples/dynpred/NOTES

@@ -1,6 +1,6 @@
 =================================================================
 Logtalk - Object oriented extension to Prolog
-Release 2.15.3
+Release 2.15.4
 
 Copyright (c) 1998-2003 Paulo Moura.  All Rights Reserved.
 =================================================================

Logtalk/examples/dynpred/SCRIPT

@@ -1,6 +1,6 @@
 =================================================================
 Logtalk - Object oriented extension to Prolog
-Release 2.15.3
+Release 2.15.4
 
 Copyright (c) 1998-2003 Paulo Moura.  All Rights Reserved.
 =================================================================

Logtalk/examples/errors/NOTES

@@ -1,6 +1,6 @@
 =================================================================
 Logtalk - Object oriented extension to Prolog
-Release 2.15.3
+Release 2.15.4
 
 Copyright (c) 1998-2003 Paulo Moura.  All Rights Reserved.
 =================================================================

Logtalk/examples/inheritance/NOTES

@@ -1,6 +1,6 @@
 =================================================================
 Logtalk - Object oriented extension to Prolog
-Release 2.15.3
+Release 2.15.4
 
 Copyright (c) 1998-2003 Paulo Moura.  All Rights Reserved.
 =================================================================

Logtalk/examples/inheritance/SCRIPT

@@ -1,6 +1,6 @@
 =================================================================
 Logtalk - Object oriented extension to Prolog
-Release 2.15.3
+Release 2.15.4
 
 Copyright (c) 1998-2003 Paulo Moura.  All Rights Reserved.
 =================================================================

Logtalk/examples/instmethods/NOTES

@@ -1,6 +1,6 @@
 =================================================================
 Logtalk - Object oriented extension to Prolog
-Release 2.15.3
+Release 2.15.4
 
 Copyright (c) 1998-2003 Paulo Moura.  All Rights Reserved.
 =================================================================

Logtalk/examples/instmethods/SCRIPT

@@ -1,6 +1,6 @@
 =================================================================
 Logtalk - Object oriented extension to Prolog
-Release 2.15.3
+Release 2.15.4
 
 Copyright (c) 1998-2003 Paulo Moura.  All Rights Reserved.
 =================================================================

Logtalk/examples/lo/NOTES

@@ -1,6 +1,6 @@
 =================================================================
 Logtalk - Object oriented extension to Prolog
-Release 2.15.3
+Release 2.15.4
 
 Copyright (c) 1998-2003 Paulo Moura.  All Rights Reserved.
 =================================================================

Logtalk/examples/lo/planner/NOTES

@@ -1,6 +1,6 @@
 =================================================================
 Logtalk - Object oriented extension to Prolog
-Release 2.15.3
+Release 2.15.4
 
 Copyright (c) 1998-2003 Paulo Moura.  All Rights Reserved.
 =================================================================

Logtalk/examples/lo/planner/SCRIPT

@@ -1,6 +1,6 @@
 =================================================================
 Logtalk - Object oriented extension to Prolog
-Release 2.15.3
+Release 2.15.4
 
 Copyright (c) 1998-2003 Paulo Moura.  All Rights Reserved.
 =================================================================

Logtalk/examples/lo/travellers/NOTES

@@ -1,6 +1,6 @@
 =================================================================
 Logtalk - Object oriented extension to Prolog
-Release 2.15.3
+Release 2.15.4
 
 Copyright (c) 1998-2003 Paulo Moura.  All Rights Reserved.
 =================================================================

Logtalk/examples/lo/travellers/SCRIPT

@@ -1,6 +1,6 @@
 =================================================================
 Logtalk - Object oriented extension to Prolog
-Release 2.15.3
+Release 2.15.4
 
 Copyright (c) 1998-2003 Paulo Moura.  All Rights Reserved.
 =================================================================

Logtalk/examples/lpa/NOTES

@@ -1,6 +1,6 @@
 =================================================================
 Logtalk - Object oriented extension to Prolog
-Release 2.15.3
+Release 2.15.4
 
 Copyright (c) 1998-2003 Paulo Moura.  All Rights Reserved.
 =================================================================

Logtalk/examples/lpa/SCRIPT

@@ -1,6 +1,6 @@
 =================================================================
 Logtalk - Object oriented extension to Prolog
-Release 2.15.3
+Release 2.15.4
 
 Copyright (c) 1998-2003 Paulo Moura.  All Rights Reserved.
 =================================================================

Logtalk/examples/metapredicates/NOTES

@@ -1,6 +1,6 @@
 =================================================================
 Logtalk - Object oriented extension to Prolog
-Release 2.15.3
+Release 2.15.4
 
 Copyright (c) 1998-2003 Paulo Moura.  All Rights Reserved.
 =================================================================

Logtalk/examples/metapredicates/SCRIPT

@@ -1,6 +1,6 @@
 =================================================================
 Logtalk - Object oriented extension to Prolog
-Release 2.15.3
+Release 2.15.4
 
 Copyright (c) 1998-2003 Paulo Moura.  All Rights Reserved.
 =================================================================

Logtalk/examples/mi/NOTES

@@ -1,6 +1,6 @@
 =================================================================
 Logtalk - Object oriented extension to Prolog
-Release 2.15.3
+Release 2.15.4
 
 Copyright (c) 1998-2003 Paulo Moura.  All Rights Reserved.
 =================================================================

Logtalk/examples/mi/SCRIPT

@@ -1,6 +1,6 @@
 =================================================================
 Logtalk - Object oriented extension to Prolog
-Release 2.15.3
+Release 2.15.4
 
 Copyright (c) 1998-2003 Paulo Moura.  All Rights Reserved.
 =================================================================

Logtalk/examples/miscellaneous/NOTES

@@ -1,6 +1,6 @@
 =================================================================
 Logtalk - Object oriented extension to Prolog
-Release 2.15.3
+Release 2.15.4
 
 Copyright (c) 1998-2003 Paulo Moura.  All Rights Reserved.
 =================================================================

Logtalk/examples/miscellaneous/SCRIPT

@@ -1,6 +1,6 @@
 =================================================================
 Logtalk - Object oriented extension to Prolog
-Release 2.15.3
+Release 2.15.4
 
 Copyright (c) 1998-2003 Paulo Moura.  All Rights Reserved.
 =================================================================

Logtalk/examples/msglog/NOTES

@@ -1,6 +1,6 @@
 =================================================================
 Logtalk - Object oriented extension to Prolog
-Release 2.15.3
+Release 2.15.4
 
 Copyright (c) 1998-2003 Paulo Moura.  All Rights Reserved.
 =================================================================

Logtalk/examples/msglog/SCRIPT

@@ -1,6 +1,6 @@
 =================================================================
 Logtalk - Object oriented extension to Prolog
-Release 2.15.3
+Release 2.15.4
 
 Copyright (c) 1998-2003 Paulo Moura.  All Rights Reserved.
 =================================================================

Logtalk/examples/parametric/NOTES

@@ -1,6 +1,6 @@
 =================================================================
 Logtalk - Object oriented extension to Prolog
-Release 2.15.3
+Release 2.15.4
 
 Copyright (c) 1998-2003 Paulo Moura.  All Rights Reserved.
 =================================================================

Logtalk/examples/parametric/SCRIPT

@@ -1,6 +1,6 @@
 =================================================================
 Logtalk - Object oriented extension to Prolog
-Release 2.15.3
+Release 2.15.4
 
 Copyright (c) 1998-2003 Paulo Moura.  All Rights Reserved.
 =================================================================

Logtalk/examples/points/NOTES

@@ -1,6 +1,6 @@
 =================================================================
 Logtalk - Object oriented extension to Prolog
-Release 2.15.3
+Release 2.15.4
 
 Copyright (c) 1998-2003 Paulo Moura.  All Rights Reserved.
 =================================================================

Logtalk/examples/points/SCRIPT

@@ -1,6 +1,6 @@
 =================================================================
 Logtalk - Object oriented extension to Prolog
-Release 2.15.3
+Release 2.15.4
 
 Copyright (c) 1998-2003 Paulo Moura.  All Rights Reserved.
 =================================================================

Logtalk/examples/polygons/NOTES

@@ -1,6 +1,6 @@
 =================================================================
 Logtalk - Object oriented extension to Prolog
-Release 2.15.3
+Release 2.15.4
 
 Copyright (c) 1998-2003 Paulo Moura.  All Rights Reserved.
 =================================================================

Logtalk/examples/polygons/SCRIPT

@@ -1,6 +1,6 @@
 =================================================================
 Logtalk - Object oriented extension to Prolog
-Release 2.15.3
+Release 2.15.4
 
 Copyright (c) 1998-2003 Paulo Moura.  All Rights Reserved.
 =================================================================

Logtalk/examples/profiling/NOTES

@@ -1,6 +1,6 @@
 =================================================================
 Logtalk - Object oriented extension to Prolog
-Release 2.15.3
+Release 2.15.4
 
 Copyright (c) 1998-2003 Paulo Moura.  All Rights Reserved.
 =================================================================

Logtalk/examples/profiling/SCRIPT

@@ -1,6 +1,6 @@
 =================================================================
 Logtalk - Object oriented extension to Prolog
-Release 2.15.3
+Release 2.15.4
 
 Copyright (c) 1998-2003 Paulo Moura.  All Rights Reserved.
 =================================================================

Logtalk/examples/reflection/NOTES

@@ -1,6 +1,6 @@
 =================================================================
 Logtalk - Object oriented extension to Prolog
-Release 2.15.3
+Release 2.15.4
 
 Copyright (c) 1998-2003 Paulo Moura.  All Rights Reserved.
 =================================================================

Logtalk/examples/reflection/SCRIPT

@@ -1,6 +1,6 @@
 =================================================================
 Logtalk - Object oriented extension to Prolog
-Release 2.15.3
+Release 2.15.4
 
 Copyright (c) 1998-2003 Paulo Moura.  All Rights Reserved.
 =================================================================

Logtalk/examples/relations/NOTES

@@ -1,6 +1,6 @@
 =================================================================
 Logtalk - Object oriented extension to Prolog
-Release 2.15.3
+Release 2.15.4
 
 Copyright (c) 1998-2003 Paulo Moura.  All Rights Reserved.
 =================================================================

Logtalk/examples/relations/SCRIPT

@@ -1,6 +1,6 @@
 =================================================================
 Logtalk - Object oriented extension to Prolog
-Release 2.15.3
+Release 2.15.4
 
 Copyright (c) 1998-2003 Paulo Moura.  All Rights Reserved.
 =================================================================

Logtalk/examples/roots/NOTES

@@ -1,6 +1,6 @@
 =================================================================
 Logtalk - Object oriented extension to Prolog
-Release 2.15.3
+Release 2.15.4
 
 Copyright (c) 1998-2003 Paulo Moura.  All Rights Reserved.
 =================================================================

Logtalk/examples/roots/SCRIPT

@@ -1,6 +1,6 @@
 =================================================================
 Logtalk - Object oriented extension to Prolog
-Release 2.15.3
+Release 2.15.4
 
 Copyright (c) 1998-2003 Paulo Moura.  All Rights Reserved.
 =================================================================

Logtalk/examples/searching/NOTES

@@ -1,6 +1,6 @@
 =================================================================
 Logtalk - Object oriented extension to Prolog
-Release 2.15.3
+Release 2.15.4
 
 Copyright (c) 1998-2003 Paulo Moura.  All Rights Reserved.
 =================================================================

Logtalk/examples/searching/SCRIPT

@@ -1,6 +1,6 @@
 =================================================================
 Logtalk - Object oriented extension to Prolog
-Release 2.15.3
+Release 2.15.4
 
 Copyright (c) 1998-2003 Paulo Moura.  All Rights Reserved.
 =================================================================

Logtalk/examples/shapes/NOTES

@@ -1,6 +1,6 @@
 =================================================================
 Logtalk - Object oriented extension to Prolog
-Release 2.15.3
+Release 2.15.4
 
 Copyright (c) 1998-2003 Paulo Moura.  All Rights Reserved.
 =================================================================

Logtalk/examples/shapes/ch/NOTES

@@ -1,6 +1,6 @@
 =================================================================
 Logtalk - Object oriented extension to Prolog
-Release 2.15.3
+Release 2.15.4
 
 Copyright (c) 1998-2003 Paulo Moura.  All Rights Reserved.
 =================================================================

Logtalk/examples/shapes/ch/SCRIPT

@@ -1,6 +1,6 @@
 =================================================================
 Logtalk - Object oriented extension to Prolog
-Release 2.15.3
+Release 2.15.4
 
 Copyright (c) 1998-2003 Paulo Moura.  All Rights Reserved.
 =================================================================

Logtalk/examples/shapes/ph/NOTES

@@ -1,6 +1,6 @@
 =================================================================
 Logtalk - Object oriented extension to Prolog
-Release 2.15.3
+Release 2.15.4
 
 Copyright (c) 1998-2003 Paulo Moura.  All Rights Reserved.
 =================================================================

Logtalk/examples/shapes/ph/SCRIPT

@@ -1,6 +1,6 @@
 =================================================================
 Logtalk - Object oriented extension to Prolog
-Release 2.15.3
+Release 2.15.4
 
 Copyright (c) 1998-2003 Paulo Moura.  All Rights Reserved.
 =================================================================

Logtalk/examples/sicstus/NOTES

@@ -1,6 +1,6 @@
 =================================================================
 Logtalk - Object oriented extension to Prolog
-Release 2.15.3
+Release 2.15.4
 
 Copyright (c) 1998-2003 Paulo Moura.  All Rights Reserved.
 =================================================================

Logtalk/examples/sicstus/SCRIPT

@@ -1,6 +1,6 @@
 =================================================================
 Logtalk - Object oriented extension to Prolog
-Release 2.15.3
+Release 2.15.4
 
 Copyright (c) 1998-2003 Paulo Moura.  All Rights Reserved.
 =================================================================

Logtalk/examples/symdiff/NOTES

@@ -1,6 +1,6 @@
 =================================================================
 Logtalk - Object oriented extension to Prolog
-Release 2.15.3
+Release 2.15.4
 
 Copyright (c) 1998-2003 Paulo Moura.  All Rights Reserved.
 =================================================================

Logtalk/examples/symdiff/SCRIPT

@@ -1,6 +1,6 @@
 =================================================================
 Logtalk - Object oriented extension to Prolog
-Release 2.15.3
+Release 2.15.4
 
 Copyright (c) 1998-2003 Paulo Moura.  All Rights Reserved.
 =================================================================

Logtalk/examples/viewpoints/NOTES

@@ -1,6 +1,6 @@
 =================================================================
 Logtalk - Object oriented extension to Prolog
-Release 2.15.3
+Release 2.15.4
 
 Copyright (c) 1998-2003 Paulo Moura.  All Rights Reserved.
 =================================================================

Logtalk/examples/viewpoints/SCRIPT

@@ -1,6 +1,6 @@
 =================================================================
 Logtalk - Object oriented extension to Prolog
-Release 2.15.3
+Release 2.15.4
 
 Copyright (c) 1998-2003 Paulo Moura.  All Rights Reserved.
 =================================================================

Logtalk/library/NOTES

@@ -1,6 +1,6 @@
 =================================================================
 Logtalk - Object oriented extension to Prolog
-Release 2.15.3
+Release 2.15.4
 
 Copyright (c) 1998-2003 Paulo Moura.  All Rights Reserved.
 =================================================================

Logtalk/library/SCRIPT

@@ -1,6 +1,6 @@
 =================================================================
 Logtalk - Object oriented extension to Prolog
-Release 2.15.3
+Release 2.15.4
 
 Copyright (c) 1998-2003 Paulo Moura.  All Rights Reserved.
 =================================================================

Logtalk/library/all.notes

@@ -1,7 +1,7 @@
 
 =================================================================
 Logtalk - Object oriented extension to Prolog
-Release 2.15.3
+Release 2.15.4
 
 Copyright (c) 1998-2003 Paulo Moura.  All Rights Reserved.
 =================================================================

Logtalk/library/dates.notes

@@ -1,6 +1,6 @@
 =================================================================
 Logtalk - Object oriented extension to Prolog
-Release 2.15.3
+Release 2.15.4
 
 Copyright (c) 1998-2003 Paulo Moura.  All Rights Reserved.
 =================================================================

Logtalk/library/debugging.notes

@@ -1,6 +1,6 @@
 =================================================================
 Logtalk - Object oriented extension to Prolog
-Release 2.15.3
+Release 2.15.4
 
 Copyright (c) 1998-2003 Paulo Moura.  All Rights Reserved.
 =================================================================

Logtalk/library/events.notes

@@ -1,6 +1,6 @@
 =================================================================
 Logtalk - Object oriented extension to Prolog
-Release 2.15.3
+Release 2.15.4
 
 Copyright (c) 1998-2003 Paulo Moura.  All Rights Reserved.
 =================================================================

Logtalk/library/hierarchies.notes

@@ -1,6 +1,6 @@
 =================================================================
 Logtalk - Object oriented extension to Prolog
-Release 2.15.3
+Release 2.15.4
 
 Copyright (c) 1998-2003 Paulo Moura.  All Rights Reserved.
 =================================================================

Logtalk/library/metapredicates.notes

@@ -1,6 +1,6 @@
 =================================================================
 Logtalk - Object oriented extension to Prolog
-Release 2.15.3
+Release 2.15.4
 
 Copyright (c) 1998-2003 Paulo Moura.  All Rights Reserved.
 =================================================================

Logtalk/library/random.notes

@@ -1,6 +1,6 @@
 =================================================================
 Logtalk - Object oriented extension to Prolog
-Release 2.15.3
+Release 2.15.4
 
 Copyright (c) 1998-2003 Paulo Moura.  All Rights Reserved.
 =================================================================

Logtalk/library/types.notes

@@ -1,6 +1,6 @@
 =================================================================
 Logtalk - Object oriented extension to Prolog
-Release 2.15.3
+Release 2.15.4
 
 Copyright (c) 1998-2003 Paulo Moura.  All Rights Reserved.
 =================================================================

Logtalk/manuals/NOTES

@@ -1,6 +1,6 @@
 =================================================================
 Logtalk - Object oriented extension to Prolog
-Release 2.15.3
+Release 2.15.4
 
 Copyright (c) 1998-2003 Paulo Moura.  All Rights Reserved.
 =================================================================

Logtalk/manuals/index.html

@@ -7,14 +7,14 @@
 <html xmlns="http://www.w3.org/1999/xhtml" lang="en" xml:lang="en">
 
 <head>
-	<title>Logtalk 2.15.3 Documentation</title>
+	<title>Logtalk 2.15.4 Documentation</title>
 	<link rel="stylesheet" href="styles.css" type="text/css" />
 </head>
 
 <body>
 
 <hr />
-<h1 class="center">Logtalk 2.15.3</h1>
+<h1 class="center">Logtalk 2.15.4</h1>
 
 <h3 class="center">Documentation</h3>
 <p class="center">
@@ -45,7 +45,7 @@
 
 <hr />
 <p class="center">
-Last updated on: June 4, 2003
+Last updated on: July 7, 2003
 </p>
 <p class="center">
 <a href="http://validator.w3.org/check/referer"><img src="valid-xhtml10.png" alt="Valid XHTML 1.0!" width="88" height="31" /></a>

Logtalk/wenv/NOTES

@@ -1,6 +1,6 @@
 =================================================================
 Logtalk - Object oriented extension to Prolog
-Release 2.15.3
+Release 2.15.4
 
 Copyright (c) 1998-2003 Paulo Moura.  All Rights Reserved.
 =================================================================

Logtalk/wenv/hydra/NOTES

@@ -0,0 +1,18 @@
+=================================================================
+Logtalk - Object oriented extension to Prolog
+Release 2.15.4
+
+Copyright (c) 1998-2003 Paulo Moura.  All Rights Reserved.
+=================================================================
+
+
+This directory contains files that provide syntax highlighting 
+for editing Logtalk source files with the Hydra text editor 
+(http://hydra.globalse.org/).
+
+
+To install copy the file "logtalk.plist" to the folder 
+"~/Library/Application Support/Hydra/Syntax Definitions/" or to
+"/Library/Application Support/Hydra/Syntax Definitions/"
+(create the folder if it does not exist).
+ 

Logtalk/wenv/hydra/logtalk.plist

@@ -0,0 +1,440 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple Computer//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+
+	<key>Header</key>
+	<dict>
+	    <key>Name</key>
+		<string>Logtalk</string>
+		<key>Extensions</key>
+		<string>lgt</string>
+		<key>Valid Characters for Variables</key>
+		<string>_0987654321abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ</string>
+	</dict>
+	
+    <key>Styles</key>
+	<array>
+
+		<dict>
+			<key>Name</key>
+			<string>Entity Directives</string>
+			<key>Color</key>
+			<array>
+				<real>0.408</real>
+				<real>0.220</real>
+				<real>0.129</real>
+			</array>
+			<key>Multiline</key>
+			<false/>
+			<key>Regular Expressions</key>
+			<array>
+				<string>\:\-[[:space:]](object)</string>			
+				<string>\:\-[[:space:]](end_object)\.</string>			
+				<string>\:\-[[:space:]](protocol)</string>			
+				<string>\:\-[[:space:]](end_protocol)\.</string>			
+				<string>\:\-[[:space:]](category)</string>			
+				<string>\:\-[[:space:]](end_category)\.</string>			
+				<string>\:\-[[:space:]](initialization)\(</string>			
+				<string>\:\-[[:space:]](info)\(</string>			
+				<string>\:\-[[:space:]](mode)\(</string>			
+				<string>\:\-[[:space:]](dynamic)\(</string>			
+				<string>\:\-[[:space:]](dynamic)\.</string>			
+				<string>\:\-[[:space:]](discontiguous)\(</string>			
+				<string>\:\-[[:space:]](public)\(</string>			
+				<string>\:\-[[:space:]](protected)\(</string>			
+				<string>\:\-[[:space:]](private)\(</string>			
+				<string>\:\-[[:space:]](metapredicate)\(</string>			
+				<string>\:\-[[:space:]](op)\(</string>			
+				<string>\:\-[[:space:]](calls)\(</string>			
+				<string>\:\-[[:space:]](uses)\(</string>			
+			</array>
+		</dict>
+
+		<dict>
+			<key>Name</key>
+			<string>Entity Relations</string>
+			<key>Color</key>
+			<array>
+				<real>0.408</real>
+				<real>0.220</real>
+				<real>0.129</real>
+			</array>
+			<key>Multiline</key>
+			<false/>
+			<key>Regular Expressions</key>
+			<array>
+				<string>(instantiates)\(</string>
+				<string>(specializes)\(</string>
+				<string>(extends)\(</string>
+				<string>(imports)\(</string>
+				<string>(implements)\(</string>
+			</array>
+		</dict>
+
+		<dict>
+			<key>Name</key>
+			<string>Message Sending Operators</string>
+			<key>Color</key>
+			<array>
+				<real>0.000</real>
+				<real>0.000</real>
+				<real>1.000</real>
+			</array>
+			<key>Multiline</key>
+			<false/>
+			<key>Regular Expressions</key>
+			<array>
+				<string>::</string>			
+				<string>\^\^</string>			
+			</array>
+		</dict>
+
+		<dict>
+			<key>Name</key>
+			<string>Control Constructs</string>
+			<key>Color</key>
+			<array>
+				<real>0.463</real>
+				<real>0.059</real>
+				<real>0.298</real>
+			</array>
+			<key>Multiline</key>
+			<false/>
+			<key>Regular Expressions</key>
+			<array>
+				<string>(call)\(</string>
+				<string>(catch)\(</string>
+				<string>(throw)\(</string>
+				<string>(true)</string>
+				<string>(fail)</string>
+			</array>
+		</dict>
+
+		<dict>
+			<key>Name</key>
+			<string>External Call</string>
+			<key>Color</key>
+			<array>
+				<real>0.463</real>
+				<real>0.059</real>
+				<real>0.298</real>
+			</array>
+			<key>Multiline</key>
+			<true/>
+			<key>Multiline Begin</key>
+			<string>({)</string>
+			<key>Multiline End</key>
+			<string>(})</string>
+		</dict>
+
+		<dict>
+			<key>Name</key>
+			<string>Built-in Methods</string>
+			<key>Color</key>
+			<array>
+				<real>0.463</real>
+				<real>0.059</real>
+				<real>0.298</real>
+			</array>
+			<key>Multiline</key>
+			<false/>
+			<key>Regular Expressions</key>
+			<array>
+				<string>(parameter)\(</string>
+				<string>(self)\(</string>
+				<string>(sender)\(</string>
+				<string>(this)\(</string>
+				<string>(current_predicate)\(</string>
+				<string>(predicate_property)\(</string>
+				<string>(abolish)\(</string>
+				<string>(asserta)\(</string>
+				<string>(assertz)\(</string>
+				<string>(clause)\(</string>
+				<string>(retract)\(</string>
+				<string>(retractall)\(</string>
+				<string>(bagof)\(</string>
+				<string>(findall)\(</string>
+				<string>(forall)\(</string>
+				<string>(setof)\(</string>
+				<string>(before)\(</string>
+				<string>(after)\(</string>
+				<string>(phrase)\(</string>
+			</array>
+		</dict>
+
+		<dict>
+			<key>Name</key>
+			<string>Built-in Predicates</string>
+			<key>Color</key>
+			<array>
+				<real>0.463</real>
+				<real>0.059</real>
+				<real>0.298</real>
+			</array>
+			<key>Multiline</key>
+			<false/>
+			<key>Regular Expressions</key>
+			<array>
+				<string>(current_object)\(</string>
+				<string>(current_protocol)\(</string>
+				<string>(current_category)\(</string>
+				<string>(create_object)\(</string>
+				<string>(create_protocol)\(</string>
+				<string>(create_category)\(</string>
+				<string>(object_property)\(</string>
+				<string>(protocol_property)\(</string>
+				<string>(category_property)\(</string>
+				<string>(abolish_object)\(</string>
+				<string>(abolish_protocol)\(</string>
+				<string>(abolish_category)\(</string>
+				<string>(extends_object)\(</string>
+				<string>(extends_protocol)\(</string>
+				<string>(implements_protocol)\(</string>
+				<string>(instantiates_object)\(</string>
+				<string>(specializes_object)\(</string>
+				<string>(imports_category)\(</string>
+				<string>(abolish_events)\(</string>
+				<string>(current_event)\(</string>
+				<string>(define_events)\(</string>
+				<string>(current_logtalk_flag)\(</string>
+				<string>(set_logtalk_flag)\(</string>
+				<string>(logtalk_compile)\(</string>
+				<string>(logtalk_load)\(</string>
+				<string>(forall)\(</string>
+				<string>(logtalk_version)\(</string>
+				<string>(retractall)\(</string>
+			</array>
+		</dict>
+
+		<dict>
+			<key>Name</key>
+			<string>Other Built-in Predicates</string>
+			<key>Color</key>
+			<array>
+				<real>0.463</real>
+				<real>0.059</real>
+				<real>0.298</real>
+			</array>
+			<key>Multiline</key>
+			<false/>
+			<key>Regular Expressions</key>
+			<array>
+				<!-- Term unification -->
+				<string>[[:space:]]+(=)[[:space:]]+</string>
+				<string>[[:space:]]+(\\=)[[:space:]]+</string>
+				<string>(unify_with_occurs_check)\(</string>
+				<!-- Term testing -->
+				<string>(var)\(</string>
+				<string>(atom)\(</string>
+				<string>(integer)\(</string>
+				<string>(float)\(</string>
+				<string>(atomic)\(</string>
+				<string>(compound)\(</string>
+				<string>(nonvar)\(</string>
+				<string>(number)\(</string>
+				<!-- Term comparison -->
+				<string>[[:space:]]+(==)[[:space:]]+</string>
+				<string>[[:space:]]+(\\==)[[:space:]]+</string>
+				<string>[[:space:]]+(@=&lt;)[[:space:]]+</string>
+				<string>[[:space:]]+(@&lt;)[[:space:]]+</string>
+				<string>[[:space:]]+(@&gt;=)[[:space:]]+</string>
+				<string>[[:space:]]+(@&gt;)[[:space:]]+</string>
+				<!-- Term creation and decomposition -->
+				<string>(functor)\(</string>
+				<string>(arg)\(</string>
+				<string>[[:space:]]+(=\.\.)[[:space:]]+</string>
+				<string>(copy_term)\(</string>
+				<!-- Arithemtic evaluation -->
+				<string>[[:space:]]+(is)[[:space:]]+</string>
+				<!-- Arithemtic comparison -->
+				<string>[[:space:]]+(=:=)[[:space:]]+</string>
+				<string>[[:space:]]+(=\=)[[:space:]]+</string>
+				<string>[[:space:]]+(&lt;)[[:space:]]+</string>
+				<string>[[:space:]]+(=&lt;)[[:space:]]+</string>
+				<string>[[:space:]]+(&gt;)[[:space:]]+</string>
+				<string>[[:space:]]+(&gt;=)[[:space:]]+</string>
+				<!-- Evaluable functors -->
+				<string>[[:space:]]+(\+)[[:space:]]+</string>
+				<string>[[:space:]]+(\-)[[:space:]]+</string>
+				<string>[[:space:]]+(\*)[[:space:]]+</string>
+				<string>[[:space:]]+(//)[[:space:]]+</string>
+				<string>[[:space:]]+(/)[[:space:]]+</string>
+				<string>[[:space:]]+(rem)[[:space:]]+</string>
+				<string>[[:space:]]+(mod)[[:space:]]+</string>
+				<string>(rem)\(</string>
+				<string>(mod)\(</string>
+				<string>(abs)\(</string>
+				<string>(sign)\(</string>
+				<string>(float_integer_part)\(</string>
+				<string>(float_fractional_part)\(</string>
+				<string>(float)\(</string>
+				<string>(floor)\(</string>
+				<string>(truncate)\(</string>
+				<string>(round)\(</string>
+				<string>(ceiling)\(</string>
+				<!-- Other arithemtic functors -->
+				<string>[[:space:]]+(\*\*)[[:space:]]+</string>
+				<string>(sin)\(</string>
+				<string>(cos)\(</string>
+				<string>(atan)\(</string>
+				<string>(exp)\(</string>
+				<string>(log)\(</string>
+				<string>(sqrt)\(</string>
+				<!-- Bitwise functors -->
+				<string>[[:space:]]+(&gt;&gt;)[[:space:]]+</string>
+				<string>[[:space:]]+(&lt;&lt;)[[:space:]]+</string>
+				<string>[[:space:]]+(/\\)[[:space:]]+</string>
+				<string>[[:space:]]+(\\/)[[:space:]]+</string>
+				<string>[[:space:]]+(\\)[[:space:]]+</string>
+				<!-- Stream selection and control -->
+				<string>(current_input)\(</string>
+				<string>(current_output)\(</string>
+				<string>(set_input)\(</string>
+				<string>(set_output)\(</string>
+				<string>(open)\(</string>
+				<string>(close)\(</string>
+				<string>(flush_output)</string>
+				<string>(stream_property)\(</string>
+				<string>(at_end_of_stream)</string>
+				<string>(set_stream_position)\(</string>
+				<!-- Character input/output -->
+				<string>(get_char)\(</string>
+				<string>(get_code)\(</string>
+				<string>(peek_char)\(</string>
+				<string>(peek_code)\(</string>
+				<string>(put_char)\(</string>
+				<string>(put_code)\(</string>
+				<string>(nl)</string>
+				<!-- Byte input/output -->
+				<string>(get_byte)\(</string>
+				<string>(peek_byte)\(</string>
+				<string>(put_byte)\(</string>
+				<!-- Term input/output -->
+				<string>(read_term)\(</string>
+				<string>(read)\(</string>
+				<string>(write_term)\(</string>
+				<string>(write)\(</string>
+				<string>(writeq)\(</string>
+				<string>(write_canonical)\(</string>
+				<string>(op)\(</string>
+				<string>(current_op)\(</string>
+				<string>(char_conversion)\(</string>
+				<string>(current_char_conversion)\(</string>
+				<!-- Logic and control -->
+				<string>(\\\+)[[:space:]]+</string>
+				<string>(once)\(</string>
+				<string>(repeat)</string>
+				<!-- Atomic term processing -->
+				<string>(atom_length)\(</string>
+				<string>(atom_concat)\(</string>
+				<string>(sub_atom)\(</string>
+				<string>(atom_chars)\(</string>
+				<string>(atom_codes)\(</string>
+				<string>(char_code)\(</string>
+				<string>(number_chars)\(</string>
+				<string>(number_codes)\(</string>
+				<!-- Implementation defined hooks functions -->
+				<string>(set_prolog_flag)\(</string>
+				<string>(current_prolog_flag)\(</string>
+				<string>(halt)</string>
+			</array>
+		</dict>
+
+		<dict>
+			<key>Name</key>
+			<string>Numbers</string>
+			<key>Color</key>
+			<array>
+				<real>0.000</real>
+				<real>0.000</real>
+				<real>0.404</real>
+			</array>
+			<key>Multiline</key>
+			<false/>
+			<key>Plain Strings</key>
+			<array>
+				<string>[0-9]+\.*[0-9]+([eE][-+][1-9][0-9]*)?</string>
+				<string>0b[0-1]+</string>
+				<string>0o[0-8]+</string>
+				<string>0x[0-9a-fA-F]+</string>
+			</array>
+		</dict>
+
+		<dict>
+			<key>Name</key>
+			<string>Quoted Atoms and Strings</string>
+			<key>Color</key>
+			<array>
+				<real>0.537</real>
+				<real>0.075</real>
+				<real>0.082</real>
+			</array>
+			<key>Multiline</key>
+			<false/>
+			<key>Regular Expressions</key>
+			<array>
+				<string>'(.+)'</string>
+				<string>"(.+)"</string>
+			</array>
+		</dict>
+
+		<dict>
+			<key>Name</key>
+			<string>Character Code Constants</string>
+			<key>Color</key>
+			<array>
+				<real>0.000</real>
+				<real>0.000</real>
+				<real>0.404</real>
+			</array>
+			<key>Multiline</key>
+			<false/>
+			<key>Regular Expressions</key>
+			<array>
+				<string>(0'[[:alnum:]])</string>
+			</array>
+		</dict>
+
+		<dict>
+			<key>Name</key>
+			<string>Single Line Comment</string>
+			<key>Color</key>
+			<array>
+				<real>0.137</real>
+				<real>0.431</real>
+				<real>0.145</real>
+			</array>
+			<key>Multiline</key>
+			<false/>
+            <key>Comment</key>
+			<true/>
+			<key>Regular Expressions</key>
+			<array>
+				<string>%.*</string>			
+			</array>
+		</dict>
+
+		<dict>
+			<key>Name</key>
+			<string>Block Comment</string>
+			<key>Color</key>
+			<array>
+				<real>0.137</real>
+				<real>0.431</real>
+				<real>0.145</real>
+			</array>
+			<key>Multiline</key>
+			<true/>
+            <key>Comment</key>
+			<true/>
+			<key>Multiline Begin</key>
+			<string>/*</string>
+			<key>Multiline End</key>
+			<string>*/</string>
+		</dict>
+
+	</array>
+
+</dict>
+</plist>

Logtalk/wenv/jedit/NOTES

@@ -1,6 +1,6 @@
 =================================================================
 Logtalk - Object oriented extension to Prolog
-Release 2.15.3
+Release 2.15.4
 
 Copyright (c) 1998-2003 Paulo Moura.  All Rights Reserved.
 =================================================================

Logtalk/wenv/jedit/logtalk.xml

@@ -4,10 +4,10 @@
 
 <!--	jEdit 4.1 Logtalk syntax file
 
-	written by		Paulo Moura
+	written by	Paulo Moura
-	version			1.2
+	version		1.3
-	created on		2 May 2002
+	created on	2 May 2002
-	last revised	3 October 2002
+	last revised	7 July 2003
 	
 	To install, copy this file to the "modes" subdirectory in jEdit 
 	directory installation.   Next, check the "catalog" file in the 
@@ -25,7 +25,7 @@
 		<PROPERTY NAME="tabSize" VALUE="4" />
 	</PROPS>
 
-	<RULES IGNORE_CASE="FALSE">
+	<RULES SET="MAIN" IGNORE_CASE="FALSE">
 	
 		<!-- Comments -->
 		<EOL_SPAN TYPE="COMMENT1">%</EOL_SPAN>
@@ -34,6 +34,8 @@
 			<END>*/</END>
 		</SPAN>
 
+		<SEQ_REGEXP TYPE="NULL" HASH_CHAR="0">0'[[:alnum:]]</SEQ_REGEXP>
+
 		<!-- String literals -->
 		<SPAN TYPE="LITERAL1" NO_LINE_BREAK="TRUE">
 			<BEGIN>'</BEGIN>
@@ -203,6 +205,8 @@
 			<FUNCTION>before</FUNCTION>
 			<FUNCTION>after</FUNCTION>
 
+			<FUNCTION>phrase</FUNCTION>
+
 			<!-- Control constructs -->
 			<FUNCTION>true</FUNCTION>
 			<FUNCTION>fail</FUNCTION>
@@ -210,6 +214,7 @@
 			<SEQ TYPE="FUNCTION">!</SEQ>
 			<SEQ TYPE="OPERATOR">,</SEQ>
 			<SEQ TYPE="OPERATOR">;</SEQ>
+			<SEQ TYPE="OPERATOR">--&gt;</SEQ>
 			<SEQ TYPE="OPERATOR">-&gt;</SEQ>
 			<FUNCTION>catch</FUNCTION>
 			<FUNCTION>throw</FUNCTION>
@@ -410,7 +415,7 @@
 
 	</RULES>
 
-
+ 
 	<RULES SET="INFO" IGNORE_CASE="FALSE">
 
 		<SPAN TYPE="LITERAL1" NO_LINE_BREAK="TRUE">

Logtalk/wenv/nedit/NOTES

@@ -1,6 +1,6 @@
 =================================================================
 Logtalk - Object oriented extension to Prolog
-Release 2.15.3
+Release 2.15.4
 
 Copyright (c) 1998-2003 Paulo Moura.  All Rights Reserved.
 =================================================================

Logtalk/wenv/nedit/logtalk.pats

@@ -2,7 +2,7 @@
 !
 ! Author: Paulo Moura (pmoura at logtalk.org)
 !
-! Last changed in: September 6, 2002
+! Last changed in: July 7, 2003
 !
 !
 ! To install this patterns file:
@@ -27,11 +27,12 @@ nedit.highlightPatterns: Logtalk:1:0{\n\
 	Clause operators:":\\-|\\.":::Keyword::\n\
 	Term testing:"<[^+?@-](var|atom|integer|float|atomic|compound|nonvar|number)>":::Subroutine1::\n\
 	Message sending operators:"::|\\^\\^":::Keyword::\n\
-	Control constructs:"!|,|;|\\-\\>|<(true|fail|call|catch|throw)>":::Subroutine::\n\
+	Control constructs:"!|,|;|\\-\\-\\>|\\-\\>|<(true|fail|call|catch|throw)>":::Subroutine::\n\
 	Block comment:"/\\*":"\\*/"::Comment::\n\
 	Line comment:"%":"$"::Comment::\n\
+	Number:"0'":::Plain::\n\
 	String:"'":"'"::String::\n\
-	Built-in methods:"<(parameter|self|sender|this|current_predicate|predicate_property|abolish|asserta|assertz|retractall|retract|bagof|findall|forall|setof|before|after)>":::Subroutine::\n\
+	Built-in methods:"<(parameter|self|sender|this|current_predicate|predicate_property|abolish|asserta|assertz|retractall|retract|bagof|findall|forall|setof|before|after|phrase)>":::Subroutine::\n\
 	Arithmetic operators:"<is>|\\+|\\*|\\-|/|=:=|=\\\\=|=\\<|\\>=|\\<|\\>":::Subroutine1::\n\
 	Built-in predicates:"<(current_object|current_protocol|current_category|create_object|create_protocol|create_category|object_property|protocol_property|category_property|abolish_object|abolish_protocol|abolish_vategory|extends_object|extends_protocol|omplements_protocol|instantiates_object|specializes_object|imports_category|abolish_events|current_events|define_events|current_logtalk_flag|set_logtalk_flag|logtalk_compile|logtalk_load|forall|retractall)>":::Subroutine1::\n\
 	Term unification:"=|<unify_with_occurs_check>|\\\\=":::Subroutine1::\n\

Logtalk/wenv/pb/NOTES

@@ -1,6 +1,6 @@
 =================================================================
 Logtalk - Object oriented extension to Prolog
-Release 2.15.3
+Release 2.15.4
 
 Copyright (c) 1998-2003 Paulo Moura.  All Rights Reserved.
 =================================================================

Logtalk/wenv/textpad/NOTES

@@ -1,6 +1,6 @@
 =================================================================
 Logtalk - Object oriented extension to Prolog
-Release 2.15.3
+Release 2.15.4
 
 Copyright (c) 1998-2003 Paulo Moura.  All Rights Reserved.
 =================================================================

Logtalk/wenv/textpad/logtalk.syn

@@ -152,6 +152,7 @@ forall
 setof
 before
 after
+phrase
 
 ; Mode operators
 ?
@@ -164,6 +165,7 @@ call
 !
 ,
 ;
+-->
 ->
 catch
 throw

Logtalk/wenv/vim/NOTES

@@ -1,6 +1,6 @@
 =================================================================
 Logtalk - Object oriented extension to Prolog
-Release 2.15.3
+Release 2.15.4
 
 Copyright (c) 1998-2003 Paulo Moura.  All Rights Reserved.
 =================================================================

Logtalk/wenv/vim/logtalk.vim

@@ -2,7 +2,7 @@
 "
 " Language:	Logtalk
 " Maintainer:	Paulo Moura <pmoura@logtalk.org>
-" Last Change:	2002 September 6
+" Last Change:	2003 July 7
 
 
 " Quit when a syntax file was already loaded:
@@ -27,7 +27,12 @@ syn match	logtalkOperator		":-"
 " Logtalk quoted atoms and strings
 
 syn region	logtalkString		start=+"+	skip=+\\"+	end=+"+
-syn region	logtalkAtom		start=+'+	skip=+\\'+	end=+'+
+syn region	logtalkAtom			start=+'+	skip=+\\'+	end=+'+
+
+
+" Logtalk character code constants
+
+syn match	logtalkNumber		"0'"
 
 
 " Logtalk message sending operators
@@ -38,7 +43,7 @@ syn match	logtalkOperator		"\^\^"
 
 " Logtalk external call
 
-syn region	logtalkExtCall		matchgroup=logtalkExtCallTag		start="{"		matchgroup=logtalkExtCallTag		end="}"		contains=ALL
+syn region	logtalkExtCall			matchgroup=logtalkExtCallTag		start="{"		matchgroup=logtalkExtCallTag		end="}"		contains=ALL
 
 
 " Logtalk opening entity directives
@@ -145,6 +150,8 @@ syn keyword	logtalkBuiltInMethod	setof
 syn keyword	logtalkBuiltInMethod	before
 syn keyword	logtalkBuiltInMethod	after
 
+syn keyword	logtalkBuiltInMethod	phrase
+
 
 " Mode operators
 
@@ -160,6 +167,7 @@ syn keyword	logtalkKeyword		call
 syn match	logtalkOperator		"!"
 syn match	logtalkOperator		","
 syn match	logtalkOperator		";"
+syn match	logtalkOperator		"-->"
 syn match	logtalkOperator		"->"
 syn keyword	logtalkKeyword		catch
 syn keyword	logtalkKeyword		throw
@@ -360,34 +368,36 @@ if version >= 508 || !exists("did_logtalk_syn_inits")
 		command -nargs=+ HiLink hi def link <args>
 	endif
 	
-	HiLink	logtalkBlockComment	Comment
+	HiLink	logtalkBlockComment		Comment
-	HiLink	logtalkLineComment	Comment
+	HiLink	logtalkLineComment		Comment
 
 	HiLink	logtalkOpenEntityDir	Normal
 	HiLink	logtalkOpenEntityDirTag	Statement
 
-	HiLink	logtalkEntity		Normal
+	HiLink	logtalkEntity			Normal
 
-	HiLink	logtalkEntityRel	Normal
+	HiLink	logtalkEntityRel		Normal
-	HiLink	logtalkEntityRelTag	Statement
+	HiLink	logtalkEntityRelTag		Statement
 
 	HiLink	logtalkCloseEntityDir	Statement
 
-	HiLink	logtalkDir		Normal
+	HiLink	logtalkDir				Normal
-	HiLink	logtalkDirTag		Statement
+	HiLink	logtalkDirTag			Statement
 
-	HiLink	logtalkAtom		String
+	HiLink	logtalkAtom				String
-	HiLink	logtalkString		String
+	HiLink	logtalkString			String
 
-	HiLink	logtalkKeyword		Keyword
+	HiLink	logtalkNumber			Normal
 
-	HiLink	logtalkBuiltIn		Keyword
+	HiLink	logtalkKeyword			Keyword
+
+	HiLink	logtalkBuiltIn			Keyword
 	HiLink	logtalkBuiltInMethod	Keyword
 
-	HiLink	logtalkOperator		Operator
+	HiLink	logtalkOperator			Operator
 
-	HiLink	logtalkExtCall		Normal
+	HiLink	logtalkExtCall			Normal
-	HiLink	logtalkExtCallTag	Operator
+	HiLink	logtalkExtCallTag		Operator
 
 	delcommand HiLink
 

Logtalk/xml/NOTES

@@ -1,6 +1,6 @@
 =================================================================
 Logtalk - Object oriented extension to Prolog
-Release 2.15.3
+Release 2.15.4
 
 Copyright (c) 1998-2003 Paulo Moura.  All Rights Reserved.
 =================================================================

Logtalk/xml/ie50.xsl

@@ -8,7 +8,7 @@
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 %
 %  Logtalk - Object oriented extension to Prolog
-%  Release 2.15.3
+%  Release 2.15.4
 %
 %  Copyright (c) 1998-2003 Paulo Moura.  All Rights Reserved.
 %

Logtalk/xml/lgthtml.xsl

@@ -14,7 +14,7 @@
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 %
 %  Logtalk - Object oriented extension to Prolog
-%  Release 2.15.3
+%  Release 2.15.4
 %
 %  Copyright (c) 1998-2003 Paulo Moura.  All Rights Reserved.
 %

Logtalk/xml/lgtpdfa4.xsl

@@ -9,7 +9,7 @@
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 %
 %  Logtalk - Object oriented extension to Prolog
-%  Release 2.15.3
+%  Release 2.15.4
 %
 %  Copyright (c) 1998-2003 Paulo Moura.  All Rights Reserved.
 %

Logtalk/xml/lgtpdfus.xsl

@@ -9,7 +9,7 @@
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 %
 %  Logtalk - Object oriented extension to Prolog
-%  Release 2.15.3
+%  Release 2.15.4
 %
 %  Copyright (c) 1998-2003 Paulo Moura.  All Rights Reserved.
 %

Logtalk/xml/lgtxml.xsl

@@ -14,7 +14,7 @@
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 %
 %  Logtalk - Object oriented extension to Prolog
-%  Release 2.15.3
+%  Release 2.15.4
 %
 %  Copyright (c) 1998-2003 Paulo Moura.  All Rights Reserved.
 %

Logtalk/xml/logtalk.dtd

@@ -3,7 +3,7 @@
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 %
 %  Logtalk - Object oriented extension to Prolog
-%  Release 2.15.3
+%  Release 2.15.4
 %
 %  Copyright (c) 1998-2003 Paulo Moura.  All Rights Reserved.
 %

Logtalk/xml/logtalk.xsd

@@ -15,7 +15,7 @@
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 %
 %  Logtalk - Object oriented extension to Prolog
-%  Release 2.15.3
+%  Release 2.15.4
 %
 %  Copyright (c) 1998-2003 Paulo Moura.  All Rights Reserved.
 %

Logtalk/xml/texml.xsl

@@ -12,7 +12,7 @@
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 %
 %  Logtalk - Object oriented extension to Prolog
-%  Release 2.15.3
+%  Release 2.15.4
 %
 %  Copyright (c) 1998-2003 Paulo Moura.  All Rights Reserved.
 %

library/logtalk/logtalk.pl

@@ -2,7 +2,7 @@
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 %
 %  Logtalk - Object oriented extension to Prolog
-%  Release 2.15.3
+%  Release 2.15.4
 %
 %  Copyright (c) 1998-2003 Paulo Moura.  All Rights Reserved.
 %
@@ -1073,7 +1073,7 @@ current_logtalk_flag(Flag, Value) :-
 	\+ '$lgt_flag_'(Flag, _),
 	'$lgt_default_flag'(Flag, Value).
 
-current_logtalk_flag(version, version(2, 15, 3)).
+current_logtalk_flag(version, version(2, 15, 4)).
 
 
 
@@ -1129,12 +1129,12 @@ current_logtalk_flag(version, version(2, 15, 3)).
 '$lgt_current_predicate'(Obj, Functor/Arity, Sender, Scope) :-
 	'$lgt_current_object_'(Obj, _, Dcl, _, _, _),
 	findall(
-		Functor/Arity-(PScope, SContainer),
+		Functor/Arity - (PScope, SContainer),
 		('$lgt_call'(Dcl, Pred, PScope, _, _, SContainer, _),
 		 functor(Pred, Functor, Arity)),
 		Preds),
 	'$lgt_cp_filter'(Preds, Filtered),
-	'$lgt_member'(Functor/Arity-(PScope, SContainer), Filtered),
+	'$lgt_member'(Functor/Arity - (PScope, SContainer), Filtered),
 	once((\+ \+ PScope = Scope; Sender = SContainer)).
 
 
@@ -1330,7 +1330,7 @@ current_logtalk_flag(version, version(2, 15, 3)).
 				Metavars = []),
 			'$lgt_metavars'(Context, Metavars),
 			'$lgt_tr_body'(Body, TBody, Context),
-			asserta((Call:-('$lgt_nop'(Body), TBody)))
+			asserta((Call :- ('$lgt_nop'(Body), TBody)))
 			;
 			(PScope = p ->
 				throw(error(permission_error(modify, private_predicate, Head), Obj::asserta((Head:-Body)), Sender))
@@ -1417,7 +1417,7 @@ current_logtalk_flag(version, version(2, 15, 3)).
 				Metavars = []),
 			'$lgt_metavars'(Context, Metavars),
 			'$lgt_tr_body'(Body, TBody, Context),
-			assertz((Call:-('$lgt_nop'(Body), TBody)))
+			assertz((Call :- ('$lgt_nop'(Body), TBody)))
 			;
 			(PScope = p ->
 				throw(error(permission_error(modify, private_predicate, Head), Obj::assertz((Head:-Body)), Sender))
@@ -1522,10 +1522,10 @@ current_logtalk_flag(version, version(2, 15, 3)).
 		(Type = (dynamic) ->
 			((\+ \+ PScope = Scope; Sender = SContainer) ->
 				('$lgt_once'(Def, Head, _, _, _, Call) ->
-					retract((Call:-('$lgt_nop'(Body), _)))
+					retract((Call :- ('$lgt_nop'(Body), _)))
 					;
 					('$lgt_once'(DDef, Head, _, _, _, Call) ->
-						retract((Call:-('$lgt_nop'(Body), _))),
+						retract((Call :- ('$lgt_nop'(Body), _))),
 						'$lgt_update_ddef_table'(DDef, Call)
 						;
 						fail))
@@ -5467,7 +5467,7 @@ user0__def(Pred, _, _, _, Pred, user).
 	atom(Prefix).
 
 '$lgt_valid_compiler_option'(doctype(Option)) :-
-	once((Option == standalone; Option == local; Option == web)).
+	once((Option == standalone; Option == (local); Option == web)).
 
 
 
@@ -5694,7 +5694,7 @@ user0__def(Pred, _, _, _, Pred, user).
 
 
 
-% '$lgt_dcg_terminals'(@list, -goal, @var, @var)
+% '$lgt_dcg_terminals'(+list, -goal, @var, @var)
 %
 % translate list of terminals
 
@@ -5702,7 +5702,8 @@ user0__def(Pred, _, _, _, Pred, user).
 	'$lgt_dcg_terminals'(Terminals, S, List).
 
 
-'$lgt_dcg_terminals'([], S, S).
+'$lgt_dcg_terminals'([], S, S) :-
+	!.		% make predicate determinist when first argument is [Var1| Var2]
 
 '$lgt_dcg_terminals'([Terminal| Terminals], S, [Terminal| Rest]) :-
 	'$lgt_dcg_terminals'(Terminals, S, Rest).
@@ -6186,7 +6187,7 @@ user0__def(Pred, _, _, _, Pred, user).
 %
 %  table of ISO defined predicates
 %
-%  used in portability checking
+%  used for portability checking
 %
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 

library/logtalk/yap430.config

@@ -1,7 +1,7 @@
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 %
 %  Logtalk - Object oriented extension to Prolog
-%  Release 2.15.3
+%  Release 2.15.4
 %
 %  configuration file for YAP Prolog 4.3.23 or later
 %