one_newline_tags option

src/Html2Text.php

@@ -8,6 +8,7 @@ public static function defaultOptions() {
 		return array(
 			'ignore_errors' => false,
 			'drop_links'    => false,
+			'one_newline_tags' => []
 		);
 	}
 
@@ -258,7 +259,6 @@ static function iterateOverNode($node, $prevName, $in_pre, $is_office_document,
 
 		$name = strtolower($node->nodeName);
 		$nextName = static::nextChildName($node);
-
 		// start whitespace
 		switch ($name) {
 			case "hr":
@@ -285,8 +285,12 @@ static function iterateOverNode($node, $prevName, $in_pre, $is_office_document,
 			case "ol":
 			case "ul":
 			case "pre":
-				// add two newlines
-				$output = "\n\n";
+				if(in_array($name, $options['one_newline_tags'])){
+					$output = "\n";
+				}else{
+					// add two newlines
+					$output = "\n\n";
+				}
 				break;
 
 			case "td":
@@ -334,7 +338,7 @@ static function iterateOverNode($node, $prevName, $in_pre, $is_office_document,
 				$output = "";
 				break;
 		}
-
+		
 		// debug
 		//$output .= "[$name,$nextName]";
 
@@ -350,7 +354,7 @@ static function iterateOverNode($node, $prevName, $in_pre, $is_office_document,
 			while ($n != null) {
 
 				$text = static::iterateOverNode($n, $previousSiblingName, $in_pre || $name == 'pre', $is_office_document, $options);
-
+		
 				// Pass current node name to next child, as previousSibling does not appear to get populated
 				if ($n instanceof \DOMDocumentType
 					|| $n instanceof \DOMProcessingInstruction
@@ -499,7 +503,7 @@ static function iterateOverNode($node, $prevName, $in_pre, $is_office_document,
 			default:
 				// do nothing
 		}
-
+                
 		return $output;
 	}
 }

tests/Html2TextTest.php

@@ -136,5 +136,9 @@ function testBasicDropLinks() {
 	function testAnchorsDropLinks() {
 		$this->doTestWithResults("anchors", "anchors.no-links", array('drop_links' => true));
 	}
+
+        function testOneNewlineTagsOption() {
+            $this->doTestWithResults("lists-one-newline-ul", "lists-one-newline-ul", array('one_newline_tags' => ['ul']));
+	}
 
 }

tests/lists-one-newline-ul.html

@@ -0,0 +1,24 @@
+<h1>List tests</h1>
+
+<p>
+Add some lists.
+</p>
+
+<ol>
+	<li>one</li>
+	<li>two
+	<li>three
+</ol>
+
+<div>An unordered list</div>
+
+<ul>
+	<li>one
+	<li>two</li>
+	<li>three</li>	
+</ul>
+<ul>
+	<li>one
+	<li>two</li>
+	<li>three</li>	
+</ul>

tests/lists-one-newline-ul.txt

@@ -0,0 +1,16 @@
+List tests
+
+Add some lists.
+
+- one
+- two
+- three
+
+An unordered list
+- one
+- two
+- three
+
+- one
+- two
+- three