Document AST structure

src/lib.rs

@@ -15,9 +15,11 @@ pub struct CodeBlock {
     text: String,
 }
 
-pub struct Emphasis {
+pub struct StyledText {
     italic: bool,
     bold: bool,
+    underline: bool,
+    color: Option<RGBA>,
     text: String,
 }
 
@@ -26,6 +28,14 @@ pub struct Blockquote {
     text: String,
 }
 
+pub enum Node {
+    Header(Header),
+    Paragraph(Vec<StyledText>),
+    HRule,
+}
+
+pub struct Document(Vec<Node>);
+
 // TODO: able take care of lists i am too drunk for this tonight