Logtalk 2.21.0 is now available for downloading

Hi!

Logtalk 2.21.0 is now available for downloading from the Logtalk web 
site:

	http://www.logtalk.org/

This release adds a new predicate directive, alias/3, which allows the 
definition of alternative predicate names in order to improve 
readability of inherited features and to solve conflicts between 
implemented, imported, or inherited predicates. In addition, categories 
are now allowed to import other categories, useful when a modified 
version of a category is needed for importing into several unrelated 
objects. Three new examples are included, illustrating the new features 
of this release.

 From the release notes:

* Added a new predicate directive, alias/3, which allows the definition 
of alternative predicate names in order to improve readability of 
inherited features and to solve conflicts between implemented, 
imported, or inherited predicates.

* Added new example, "aliases", illustrating the use of the new alias/3 
predicate directive for improving readability of inherited features.

* Added new example, "diamonds", illustrating problems and solutions 
for the "diamond problem" (multi-inheritance conflicts and ambiguities) 
using the new alias/3 predicate directive.

* Allow categories to import other categories, i.e. allow categories to 
be defined as a composition of other categories. This feature should 
only be used when extending a category without breaking its functional 
cohesion (for example, when a modified version of a category is needed 
for importing into several unrelated objects).

* Added new example, "engines", illustrating importing a category from 
another category.

* Updated the syntax coloring configuration files for the supported 
text editors for the new alias/3 predicate directive.

* Added autocomplete strings for Logtalk methods and for Logtalk and 
Prolog built-in predicates and directives to the SubEthaEdit 2.x text 
editor.

* Corrected a bug which prevented compilation of metafiles containing 
parametric entities.

The CVS tag for this release is "lgt2210".


Happy logtalking!

Paulo


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Paulo Jorge Lopes de Moura
Dep. of Informatics                   Office 4.3  Ext. 3257
University of Beira Interior          Phone: +351 275319700
6201-001 Covilhã                      Fax:   +351 275319891
Portugal

<mailto:pmoura@di.ubi.pt>
<http://www.di.ubi.pt/~pmoura>     <http://www.logtalk.org>
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