Fix for two bugs from the previous refactor.

Cargo.toml

@@ -14,6 +14,9 @@ edition = "2018"
 name = "led"
 path = "src/main.rs"
 
+[profile.release]
+debug = true
+
 [dependencies]
 ropey = "1"
 # ropey = { git = "https://github.com/cessen/ropey", branch = "master" }

src/formatter.rs

@@ -147,7 +147,7 @@ impl LineFormatter {
 
             // Get the vertical size of the block and the vertical
             // position of the char_idx within it.
-            let block_v_dim = (block_vis_iter.clone().last().unwrap().1).0 + 1;
+            let block_v_dim = block_vis_iter.clone().last().map(|n| (n.1).0).unwrap_or(0) + 1;
             let char_v_pos = block_vis_iter.clone().vpos(char_offset);
 
             // Get the char's vertical position within the block after offset

src/term_ui/mod.rs

@@ -606,6 +606,8 @@ impl TermUI {
 
                 char_index += char_count(&g);
             }
+
+            screen_line += 1;
         }
 
         // If we get here, it means we reached the end of the text buffer