Add classification of patterns. Fix for faif#70.

Author: ijxsid

README.md

@@ -9,37 +9,56 @@ comments at the bottom up to date.
 
 Current Patterns:
 
+__Creational Patterns__:
+
 | Pattern | Description |
 |:-------:| ----------- |
-| [3-tier](3-tier.py) | data<->business logic<->presentation separation (strict relationships) |
 | [abstract_factory](abstract_factory.py) | use a generic function with specific factories |
-| [adapter](adapter.py) | adapt one interface to another using a whitelist |
 | [borg](borg.py) | a singleton with shared-state among instances |
+| [builder](builder.py) | call many little discrndler requests coming to the application |
+| [factory_method](factory_method.py) | delegate a specialized function/method to create instances |
+| [lazy_evaluation](lazy_evaluation.py) | lazily-evaluated property pattern in Python |
+| [pool](pool.py) | preinstantiate and maintain a group of instances of the same type |
+| [prototype](prototype.py) | use a factory and clones of a prototype for new instances (if instantiation is expensive) |
+
+__Structural Patterns__:
+
+| Pattern | Description |
+|:-------:| ----------- |
+| [3-tier](3-tier.py) | data<->business logic<->presentation separation (strict relationships) |
+| [adapter](adapter.py) | adapt one interface to another using a whitelist |
 | [bridge](bridge.py) | a client-provider middleman to soften interface changes |
-| [builder](builder.py) | call many little discrete methods rather than having a huge number of constructor parameters |
-| [catalog](catalog.py) | general methods will call different specialized methods based on construction parameter |
-| [chain](chain.py) | apply a chain of successive handlers to try and process the data |
-| [chaining_method](chaining_method.py) | continue callback next object method |
-| [command](command.py) | bundle a command and arguments to call later |
 | [composite](composite.py) | encapsulate and provide access to a number of different objects |
 | [decorator](decorator.py) | wrap functionality with other functionality in order to affect outputs |
 | [facade](facade.py) | use one class as an API to a number of others |
-| [factory_method](factory_method.py) | delegate a specialized function/method to create instances |
-| [front_controller](front_controller.py) | single handler requests coming to the application |
 | [flyweight](flyweight.py) | transparently reuse existing instances of objects with similar/identical state |
-| [graph_search](graph_search.py) | (graphing algorithms, not design patterns) |
-| [lazy_evaluation](lazy_evaluation.py) | lazily-evaluated property pattern in Python |
+| [front_controller](front_controller.py) | single handler requests coming to the application |
+| [mvc](mvc.py) | model<->view<->controller (non-strict relationships) |
+| [proxy](proxy.py) | an object funnels operations to something else |
+
+__Behavioral Patterns__:
+
+| Pattern | Description |
+|:-------:| ----------- |
+| [chain](chain.py) | apply a chain of successive handlers to try and process the data |
+| [catalog](catalog.py) | general methods will call different specialized methods based on construction parameter |
+| [chaining_method](chaining_method.py) | continue callback next object method |
+| [command](command.py) | bundle a command and arguments to call later |
 | [mediator](mediator.py) | an object that knows how to connect other objects and act as a proxy |
 | [memento](memento.py) | generate an opaque token that can be used to go back to a previous state |
-| [mvc](mvc.py) | model<->view<->controller (non-strict relationships) |
 | [observer](observer.py) | provide a callback for notification of events/changes to data |
-| [pool](pool.py) | preinstantiate and maintain a group of instances of the same type |
-| [prototype](prototype.py) | use a factory and clones of a prototype for new instances (if instantiation is expensive) |
-| [proxy](proxy.py) | an object funnels operations to something else |
 | [publish_subscribe](publish_subscribe.py) | a source syndicates events/data to 0+ registered listeners |
 | [registry](registry.py) | keeping track of all subclasses of a given class |
 | [specification](specification.py) |  business rules can be recombined by chaining the business rules together using boolean logic |
 | [state](state.py) | logic is org'd into a discrete number of potential states and the next state that can be transitioned to |
 | [strategy](strategy.py) | selectable operations over the same data |
 | [template](template.py) | an object imposes a structure but takes pluggable components |
 | [visitor](visitor.py) | invoke a callback for all items of a collection |
+
+
+__Others__:
+
+| Pattern | Description |
+|:-------:| ----------- |
+| [graph_search](graph_search.py) | (graphing algorithms, not ete methods rather than having a huge number of constructor parameters |
+| [graph_search](graph_search.py) | (graphing algorithms, not design patterns) |