Stub implementation for inline display

src/inline.rs

@@ -1,5 +1,11 @@
+use crate::lines::LineGroup;
 
+pub fn display(groups: &[LineGroup]) -> String {
+    let mut res = String::new();
 
-pub fn display() -> String {
+    for group in groups {
-  "todo 2".into()
+        res.push_str(&format!("{:#?}\n", group))
+    }
+
+    res
 }

src/main.rs

@@ -137,7 +137,7 @@ fn main() {
     }
 
     if env::var("INLINE").is_ok() {
-        println!("{}", inline::display());
+        println!("{}", inline::display(&groups));
     } else {
         for group in &mut groups {
             group.pad(3, lhs_src.max_line(), rhs_src.max_line());