simplification, stricter adherence to projectional editing approach

code_markup/src/markup/convert/from_expr2.rs

@@ -64,13 +64,12 @@ pub fn expr2_to_markup<'a>(
         Expr2::Str(text) => {
             let content = format!("\"{}\"", text.as_str(env.pool));
 
-            new_markup_node(
-                with_indent(indent_level, &content),
-                ast_node_id,
-                HighlightStyle::String,
-                mark_node_pool,
-                indent_level,
-            )
+            string_mark_node(&content, indent_level, ast_node_id, mark_node_pool)
+        }
+        Expr2::SmallStr(array_str) => {
+            let content = format!("\"{}\"", array_str.as_str());
+
+            string_mark_node(&content, indent_level, ast_node_id, mark_node_pool)
         }
         Expr2::GlobalTag { name, .. } => new_markup_node(
             with_indent(indent_level, &get_string(env, name)),
@@ -387,3 +386,13 @@ fn with_indent(indent_level: usize, some_str: &str) -> String {
 
     full_string
 }
+
+fn string_mark_node(content: &str, indent_level: usize, ast_node_id: ASTNodeId, mark_node_pool: &mut SlowPool) -> MarkNodeId {
+    new_markup_node(
+        with_indent(indent_level, &content),
+        ast_node_id,
+        HighlightStyle::String,
+        mark_node_pool,
+        indent_level,
+    )
+}

code_markup/src/markup/nodes.rs

@@ -468,3 +468,33 @@ pub fn join_mark_nodes_commas(
 
     mark_nodes.into_iter().interleave(join_nodes).collect()
 }
+
+pub fn mark_nodes_to_string(
+    markup_node_ids: &[MarkNodeId],
+    mark_node_pool: &SlowPool,
+) -> String {
+    let mut all_code_string = String::new();
+
+    for mark_node_id in markup_node_ids.iter() {
+        node_to_string_w_children(*mark_node_id, &mut all_code_string, mark_node_pool)
+    }
+
+    all_code_string
+}
+
+pub fn node_to_string_w_children(node_id: MarkNodeId, str_buffer: &mut String, mark_node_pool: &SlowPool) {
+    let node = mark_node_pool.get(node_id);
+
+    if node.is_nested() {
+        for child_id in node.get_children_ids() {
+            node_to_string_w_children(child_id, str_buffer, mark_node_pool);
+        }
+        for _ in 0..node.get_newlines_at_end() {
+            str_buffer.push('\n')
+        }
+    } else {
+        let node_content_str = node.get_full_content();
+
+        str_buffer.push_str(&node_content_str);
+    }
+}