Don't remove color from prompt

src/edit.rs

@@ -22,9 +22,9 @@ use crate::validate::{ValidationContext, ValidationResult};
 /// Implement rendering.
 pub struct State<'out, 'prompt, H: Helper> {
     pub out: &'out mut <Terminal as Term>::Writer,
-    prompt: &'prompt str,  // Prompt to display (rl_prompt)
-    prompt_size: Position, // Prompt Unicode/visible width and height
-    pub line: LineBuffer,  // Edited line buffer
+    pub prompt: &'prompt str,  // Prompt to display (rl_prompt)
+    pub prompt_size: Position, // Prompt Unicode/visible width and height
+    pub line: LineBuffer,      // Edited line buffer
     pub layout: Layout,
     saved_line_for_history: LineBuffer, // Current edited line before history browsing
     byte_buffer: [u8; 4],

src/lib.rs

@@ -240,7 +240,12 @@ fn complete_hint_line<H: Helper>(s: &mut State<'_, '_, H>) -> Result<()> {
     if s.line.yank(hint, 1).is_none() {
         s.out.beep()?;
     }
-    s.line.buf = String::from_utf8(strip_ansi_escapes::strip(s.line.buf.clone()).unwrap()).unwrap();
+
+    let prompt = s.prompt.to_string();
+    let command =
+        String::from_utf8(strip_ansi_escapes::strip(&s.line.buf[prompt.len()..]).unwrap()).unwrap();
+    s.line.buf = format!("{}{}", prompt, command);
+
     s.refresh_line_with_msg(None)?;
     Ok(())
 }