clone EdnItem

edn/src/edn_item.rs

@@ -38,6 +38,18 @@ impl<T: PartialEq> PartialEq for EdnItem<T> {
         }
     }
 }
+impl EdnItem<&str> {
+    pub fn clone (&self) -> EdnItem<String> {
+        use EdnItem::*;
+        match self {
+            Nil    => Nil,
+            Num(u) => Num(*u),
+            Sym(u) => Sym(u.to_string()),
+            Key(u) => Key(u.to_string()),
+            Exp(e) => Exp(e.iter().map(|i|i.clone()).collect()),
+        }
+    }
+}
 impl<T: AsRef<str> + PartialEq + Default + Clone + std::fmt::Debug> EdnItem<T> {
     pub fn to_ref (&self) -> EdnItem<&str> {
         match self {

edn/src/edn_view.rs

@@ -26,12 +26,15 @@ pub enum EdnView<E: Output, T: EdnViewData<E>> {
 }
 
 impl<E: Output, T: EdnViewData<E>> EdnView<E, T> {
-    pub fn new (state: T, source: &str) -> Self {
+    pub fn from_source (state: T, source: &str) -> Self {
         match EdnItem::read_one(&source) {
             Ok((layout, _)) => Self::Ok(state, layout),
             Err(error) => Self::Err(format!("{error}"))
         }
     }
+    pub fn from_items (state: T, items: &[EdnItem<&str>]) -> Self {
+        Self::Ok(state, EdnItem::Exp(items.iter().map(|i|(*i).clone()).collect()))
+    }
 }
 
 impl<E: Output, T: EdnViewData<E> + Send + Sync> Content<E> for EdnView<E, T> {