structural design patterns skeleton

src/SUMMARY.md

@@ -64,4 +64,12 @@
     - [Chain of Responsibility](./patterns/behavioral/chain-of-responsibility.md)
     - [Iterator](./patterns/behavioral/iterator.md)
     - [Mediator](./patterns/behavioral/mediator.md)
-    - [Visitor](./patterns/behavioral/visitor.md)
+    - [Visitor](./patterns/behavioral/visitor.md)
+  - [Structural](./patterns/structural/intro.md)
+    - [Adapter](./patterns/structural/adapter.md)
+    - [Bridge](./patterns/structural/bridge.md)
+    - [Composite](./patterns/structural/composite.md)
+    - [Decorator](./patterns/structural/decorator.md)
+    - [Facade](./patterns/structural/facade.md)
+    - [Flyweight](./patterns/structural/flyweight.md)
+    - [Proxy](./patterns/structural/proxy.md)

src/patterns/intro.md

@@ -6,6 +6,7 @@ Patterns help to have reusable solutions to common problems that occur in softwa
 
 1- [Creational Patterns](./creational/intro.md): Deal with object creation mechanisms, trying to create objects in a manner suitable to the situation.
 
-2- Structural Patterns: Deal with object composition or the structure of classes and objects.
+2- [Behavioral Patterns](./behavioral/intro.md): Deal with object collaboration and the delegation of responsibilities.
+
+3- [Structural Patterns](./structural/intro.md): Deal with object composition or the structure of classes and objects.
 
-3- [Behavioral Patterns](./behavioral/intro.md): Deal with object collaboration and the delegation of responsibilities.

src/patterns/structural/adapter.md

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+# Adapter

src/patterns/structural/bridge.md

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+# Bridge

src/patterns/structural/composite.md

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+# Composite

src/patterns/structural/decorator.md

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+# Decorator

src/patterns/structural/facade.md

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+# Facade

src/patterns/structural/flyweight.md

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+# Flyweight

src/patterns/structural/intro.md

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+### Structural Patterns
+
+Structural Patterns deal with object composition, trying to realize new functionality by composing objects in various ways.
+
+### Some Common Structural Design Patterns
+
+1- [Adapter](./adapter.md): Allows objects with incompatible interfaces to work together by wrapping their own interface around that of an already existing class.
+
+2- [Bridge](./bridge.md): Decouples an abstraction from its implementation so that the two can vary independently.
+
+3- [Composite](./composite.md): Composes objects into tree structures to represent part-whole hierarchies, allowing clients to treat individual objects and compositions uniformly.
+
+4- [Decorator](./decorator.md): Adds additional responsibilities to an object dynamically, providing a flexible alternative to subclassing for extending functionality.
+
+5- [Facade](./facade.md): Provides a simplified interface to a complex subsystem, making it easier to use.
+
+6- [Flyweight](./flyweight.md): Reduces the cost of creating and manipulating a large number of similar objects by sharing as much data as possible.
+
+7- [Proxy](./proxy.md): Provides a surrogate or placeholder for another object to control access to it.

src/patterns/structural/proxy.md

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+# Proxy