Added setAttribute to the node

fixes paquettg#7

Author: paquettg

README.md

@@ -117,7 +117,7 @@ The whitespaceTextNode, by default true, option tells the parser to save textnod
 The enforceEncoding, by default null, option will enforce an charater set to be used for reading the content and returning the content in that encoding. Setting it to null will trigger an attempt to figure out the encoding from within the content of the string given instead. 
 
 Static Facade
-------------
+-------------
 
 You can also mount a static facade for the Dom object.
 
@@ -130,3 +130,27 @@ $objects = Dom::find('.content-border');
 ```
 
 The above php block does the same find and load as the first example but it is done using the static facade, which supports all public methods found in the Dom object.
+
+Modifying The Dom
+-----------------
+
+You can always modify the dom that was created from any loading method. To change the attribute of any node you can just call the `setAttribute` method.
+
+```php
+$dom = new Dom;
+$dom->load('<div class="all"><p>Hey bro, <a href="google.com">click here</a><br /> :)</p></div>');
+$a = $dom->find('a')[0];
+$a->setAttribute('class', 'foo');
+echo $a->getAttribute('class'); // "foo"
+```
+
+You may also get the `PHPHtmlParser\Dom\Tag` class directly and manipulate it as you see fit.
+
+```php
+$dom = new Dom;
+$dom->load('<div class="all"><p>Hey bro, <a href="google.com">click here</a><br /> :)</p></div>');
+$a   = $dom->find('a')[0];
+$tag = $a->getTag();
+$tag->setAttribute('class', 'foo');
+echo $a->getAttribute('class'); // "foo"
+```

src/PHPHtmlParser/Dom/AbstractNode.php

@@ -475,7 +475,7 @@ public function getAttributes()
 	}
 
 	/**
-	 * A wrapper method that simply calls the getAttributes method
+	 * A wrapper method that simply calls the getAttribute method
 	 * on the tag of this node.
 	 *
 	 * @param string $key
@@ -492,6 +492,20 @@ public function getAttribute($key)
 		return $attribute;
 	}
 
+	/**
+	 * A wrapper method that simply calls the setAttribute method
+	 * on the tag of this node.
+	 *
+	 * @param string $key
+	 * @param string $value
+	 * @chainable
+	 */
+	public function setAttribute($key, $value)
+	{
+		$this->tag->setAttribute($key, $value);
+		return $this;
+	}
+
 	/**
 	 * Function to locate a specific ancestor tag in the path to the root.
 	 *

src/PHPHtmlParser/Dom/Tag.php

@@ -111,7 +111,15 @@ public function noise($noise)
 	public function setAttribute($key, $value)
 	{
 		$key = strtolower($key);
+		if ( ! is_array($value))
+		{
+			$value = [
+				'value'       => $value,
+				'doubleQuote' => true,
+			];
+		}
 		$this->attr[$key] = $value;
+
 		return $this;
 	}
 

tests/Node/HtmlTest.php

@@ -338,4 +338,11 @@ public function testGetAttributes()
 
 		$this->assertEquals('outerlink rounded', $node->getAttributes()['class']);
 	}
+
+	public function testSetAttribute()
+	{
+		$node = new HtmlNode('a');
+		$node->setAttribute('class', 'foo');
+		$this->assertEquals('foo', $node->getAttribute('class'));
+	}
 }