can now convert from html to ir and back

src/dom.rs

@@ -1,7 +1,9 @@
 use std::collections::HashMap;
+use std;
 
+use css;
 
-struct Attr {
+pub struct Attr {
   attrs: HashMap<String, String>,
 }
 
@@ -10,27 +12,32 @@ struct EData {
     attr: Attr,
 }
 
+struct SData {
+    attr: Attr,
+    content: css::Stylesheet,
+}
+
 enum NType {
     Text(String),
     Comment(String),
     Element(EData),
+    Stylesheet(SData)
 }
 
-
-struct Node {
+pub struct Node {
     children: Vec<Node>,
     ntype: NType,
 }
 
-fn text(d: String) -> Node {
+pub fn text(d: String) -> Node {
     Node { children: Vec::new(), ntype: NType::Text(d) }
 }
 
-fn comment(d: String) -> Node {
+pub fn comment(d: String) -> Node {
     Node { children: Vec::new(), ntype: NType::Comment(d) }
 }
 
-fn elem(name: String, attr: Attr, children: Vec<Node>) -> Node {
+pub fn elem(name: String, attr: Attr, children: Vec<Node>) -> Node {
     Node {
         children: children,
         ntype: NType::Element(EData {
@@ -40,20 +47,35 @@ fn elem(name: String, attr: Attr, children: Vec<Node>) -> Node {
     }
 }
 
+pub fn attr(attrs: HashMap<String, String>) -> Attr {
+    Attr { attrs }
+}
+
+pub fn style(style: String, attr: Attr) -> Node {
+    Node {
+        children: Vec::new(),
+        ntype: NType::Stylesheet(SData {
+            content: css::parse(style),
+            attr: attr,
+        })
+    }
+}
+
 impl std::fmt::Display for Node {
     fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
         match self.ntype {
             NType::Text(ref s) => write!(f, "{}", s),
             NType::Comment(ref s) => write!(f, "<!--{}-->", s),
             NType::Element(ref d) => {
-                write!(f, "<{}", d.name);
-                write!(f, "{}", d.attr);
-                write!(f, ">");
+                write!(f, "<{}{}>", d.name, d.attr);
                 for child in self.children.iter() {
                   write!(f, "{}", child);
                 }
                 write!(f, "</{}>", d.name)
             },
+            NType::Stylesheet(ref s) => {
+                write!(f, "<style {}>{}</style>", s.attr, s.content)
+            }
         }
     }
 }
@@ -66,8 +88,3 @@ impl std::fmt::Display for Attr {
           return Result::Ok(())
     }
 }
-
-/*fn main() {
-  let e = elem("html".to_string(), Attr{attrs:"ab".chars().map(|c| (c.to_string(), c.to_string())).collect::<HashMap<_, _>>()}, vec![elem("body".to_string(), Attr{attrs:HashMap::new()}, vec![text("hi".to_string())])]);
-  println!("{}", e)
-}*/