implement the 0 and $ commands

Force-Push: yes
Change-Id: I0a056ed4e021124f05e56c893d47c3b3dc5f3cd7

1 files changed, 42 insertions, 0 deletions

diff --git a/src/main.rs b/src/main.rs
index 5929295..f21096f 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -245,6 +245,48 @@ impl Ivy {
           }).await?;
         },
 
+        '0' => {
+          self.handle_movement(async |ivy: &mut Ivy| {
+            let window = ivy.window.write().await;
+
+            let mut column = window.cursor_column.write().await;
+            *column = 0;
+
+            /* For this one, the neutral column changes regardless of
+             * whether the column does.
+             */
+            *window.cursor_neutral_column.write().await = *column;
+
+            Ok(())
+          }).await?;
+        },
+
+        '$' => {
+          self.handle_movement(async |ivy: &mut Ivy| {
+            let buffer = ivy.buffer.read().await;
+            let window = ivy.window.write().await;
+
+            let row = *window.cursor_row.read().await;
+            if let Some(span) = buffer.line_span(row).await {
+              let width = span.end - span.start;
+
+              let mut column = window.cursor_column.write().await;
+              if width > 0 {
+                *column = width - 1;
+              } else {
+                *column = 0;
+              }
+
+              /* For this one, the neutral column changes regardless of
+               * whether the column does.
+               */
+              *window.cursor_neutral_column.write().await = *column;
+            }
+
+            Ok(())
+          }).await?;
+        },
+
         _ => {
           return Ok(());
         },