From 8a110c5b01d600d897532a715358547d657c175b Mon Sep 17 00:00:00 2001
From: Roux <pupoi@tutanota.com>
Date: Tue, 11 Apr 2023 23:54:42 -0400
Subject: [PATCH 1/4] Insert: add o-insert with newline

---
 src/main.rs | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/src/main.rs b/src/main.rs
index 1f78c67..8fa38fd 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -287,6 +287,14 @@ impl State {
                     self.move_cursor(Direction::Right);
                     self.mode = Mode::Insert(state);
                 }
+                KeyCode::Char('o') => {
+                    let state = InsertState { append: false};
+                    self.cursor.line += 1;
+                    self.cursor.column = 0;
+                    let index = self.buffer.cursor_to_char(self.cursor);
+                    self.buffer.text.insert(index, "\n");
+                    self.mode = Mode::Insert(state);
+                }
                 KeyCode::Char(':') => {
                     self.mode = Mode::Command(Default::default());
                 }

From f5ea473328773351a2db1cd6e476e8c823606c1e Mon Sep 17 00:00:00 2001
From: Roux <pupoi@tutanota.com>
Date: Tue, 11 Apr 2023 23:55:33 -0400
Subject: [PATCH 2/4] cargo fmt

---
 src/main.rs | 38 ++++++++++++++++----------------------
 1 file changed, 16 insertions(+), 22 deletions(-)

diff --git a/src/main.rs b/src/main.rs
index 8fa38fd..e31ca77 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -20,12 +20,7 @@
 use std::{
     env::args,
     fs::File,
-    io::{
-        Read,
-        stdout,
-        Stdout,
-        Write,
-    },
+    io::{stdout, Read, Stdout, Write},
     os::fd::FromRawFd,
 };
 
@@ -35,7 +30,7 @@ use crossterm::{
     terminal, ExecutableCommand, Result,
 };
 use ropey::Rope;
-use yacexits::{ exit, EX_DATAERR, EX_UNAVAILABLE };
+use yacexits::{exit, EX_DATAERR, EX_UNAVAILABLE};
 
 struct Buffer {
     pub text: Rope,
@@ -288,7 +283,7 @@ impl State {
                     self.mode = Mode::Insert(state);
                 }
                 KeyCode::Char('o') => {
-                    let state = InsertState { append: false};
+                    let state = InsertState { append: false };
                     self.cursor.line += 1;
                     self.cursor.column = 0;
                     let index = self.buffer.cursor_to_char(self.cursor);
@@ -463,23 +458,22 @@ fn main() -> Result<()> {
             let stdin = 0; // get stdin as a file descriptor
             if unsafe { libc::isatty(stdin) } == 0 {
                 unsafe { File::from_raw_fd(stdin) }
-            } else { File::open("/dev/null").unwrap() }
-        },
-        Some(path) => {
-            std::fs::File::open(path).unwrap_or_else(|_| {
-                eprintln!(
-                    "{}: {}: No such file or directory.",
-                    argv[0],
-                    argv[1]
-                );
-                exit(EX_UNAVAILABLE);
-            })
-        },
-    }.read_to_end(&mut buf).unwrap();
+            } else {
+                File::open("/dev/null").unwrap()
+            }
+        }
+        Some(path) => std::fs::File::open(path).unwrap_or_else(|_| {
+            eprintln!("{}: {}: No such file or directory.", argv[0], argv[1]);
+            exit(EX_UNAVAILABLE);
+        }),
+    }
+    .read_to_end(&mut buf)
+    .unwrap();
 
     let text = String::from_utf8(buf).unwrap_or_else(|_| {
         eprintln!(
-            "{}: {}: File contents are not valid UTF-8.", argv[0], argv[1]
+            "{}: {}: File contents are not valid UTF-8.",
+            argv[0], argv[1]
         );
         exit(EX_DATAERR);
     });

From badd6a0b71b42d87f1013d1a136ee271cb6825cd Mon Sep 17 00:00:00 2001
From: Roux <pupoi@tutanota.com>
Date: Wed, 12 Apr 2023 00:10:32 -0400
Subject: [PATCH 3/4] fixed outdated code

---
 src/main.rs | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/src/main.rs b/src/main.rs
index 6a41a01..dc6b24a 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -198,8 +198,7 @@ impl State {
                     let state = InsertState { append: false };
                     self.cursor.line += 1;
                     self.cursor.column = 0;
-                    let index = self.buffer.cursor_to_char(self.cursor);
-                    self.buffer.text.insert(index, "\n");
+                    self.buffer.insert_char(self.cursor, '\n');
                     self.mode = Mode::Insert(state);
                 }
                 KeyCode::Char(':') => {

From 8cb37a78203e1fa3dcdb2f3483943fc81d617bac Mon Sep 17 00:00:00 2001
From: Roux <pupoi@tutanota.com>
Date: Wed, 12 Apr 2023 00:19:01 -0400
Subject: [PATCH 4/4] Capital O insert mode

---
 src/main.rs | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/src/main.rs b/src/main.rs
index dc6b24a..7ce333c 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -201,6 +201,12 @@ impl State {
                     self.buffer.insert_char(self.cursor, '\n');
                     self.mode = Mode::Insert(state);
                 }
+                KeyCode::Char('O') => {
+                    let state = InsertState { append: false };
+                    self.cursor.column = 0;
+                    self.buffer.insert_char(self.cursor, '\n');
+                    self.mode = Mode::Insert(state);
+                }
                 KeyCode::Char(':') => {
                     self.mode = Mode::Command(Default::default());
                 }