prompt

src/main.rs

@@ -1,8 +1,10 @@
 mod error;
 mod line;
 mod log;
+mod prompt;
 
 use line::Line;
+use prompt::Prompt;
 use windows::Win32::{Foundation::HANDLE, System::Console};
 
 use anyhow::{Context, Result};
@@ -250,7 +252,9 @@ fn main() -> Result<()> {
     let stdout = stdout_handle()?;
     let mut buf = [Console::INPUT_RECORD::default(); 100];
     let mut line = Line::new();
+    let prompt = Prompt::new();
 
+    prompt.print()?;
     loop {
         let mut n: u32 = 0;
         unsafe {
@@ -313,13 +317,15 @@ fn main() -> Result<()> {
                                         None,
                                         None,
                                     ))?;
+                                    prompt.print()?;
                                     line.clear();
                                 }
                             } else if key_code == 74
                                 && (modifiers & Console::LEFT_CTRL_PRESSED
                                     == Console::LEFT_CTRL_PRESSED)
                             {
-                                let text = "•";
+                                // red bullet
+                                let text = "\x1b[31m\u{2022}\x1b[0m";
                                 Error::check(Console::WriteConsoleA(
                                     stdout,
                                     text.as_bytes(),

src/prompt.rs

@@ -0,0 +1,27 @@
+use crate::{error::Error, stdout_handle};
+use anyhow::Result;
+use windows::Win32::System::Console;
+
+pub struct Prompt {
+    s: String,
+}
+
+impl Prompt {
+    pub fn new() -> Self {
+        Self {
+            s: String::from("\x1b[32m>\x1b[0m "),
+        }
+    }
+
+    pub fn print(&self) -> Result<()> {
+        unsafe {
+            Error::check(Console::WriteConsoleA(
+                stdout_handle()?,
+                self.s.as_bytes(),
+                None,
+                None,
+            ))?;
+        }
+        Ok(())
+    }
+}