Fix prefixing first paragraph with a newline, when there's no previous sibling node

ansi/elements.go

@@ -62,7 +62,9 @@ func (tr *ANSIRenderer) NewElement(node ast.Node, source []byte) Element {
 			return Element{}
 		}
 		return Element{
-			Renderer: &ParagraphElement{},
+			Renderer: &ParagraphElement{
+				First: node.PreviousSibling() == nil,
+			},
 			Finisher: &ParagraphElement{},
 		}
 

ansi/paragraph.go

@@ -9,13 +9,16 @@ import (
 )
 
 type ParagraphElement struct {
+	First bool
 }
 
 func (e *ParagraphElement) Render(w io.Writer, ctx RenderContext) error {
 	bs := ctx.blockStack
 	rules := ctx.options.Styles.Paragraph
 
-	_, _ = w.Write([]byte("\n"))
+	if !e.First {
+		_, _ = w.Write([]byte("\n"))
+	}
 	be := BlockElement{
 		Block: &bytes.Buffer{},
 		Style: cascadeStyle(bs.Current().Style, rules, true),

testdata/code.test

@@ -1,2 +1 @@
-                                                                                
 This is a code.                                                                 

testdata/emph.test

@@ -1,2 +1 @@
-                                                                                
 This text is emphasized.                                                        

testdata/image.test

@@ -1,2 +1 @@
-                                                                                
 Image [Image: https://charm.sh/logo.png].                                       

testdata/link.test

@@ -1,2 +1 @@
-                                                                                
 This is a link (https://charm.sh).                                              

testdata/strong.test

@@ -1,2 +1 @@
-                                                                                
 This text is strong.