Don't impose colon on prompt format

[ChanceNCounter]

Don't impose colon on prompt format

[rmj1001]

Upvoting. Please add this feature.

[raycoe]

Upvoting too

[PokeJofeJr4th]

I agree, this would be a great feature to have in the crate. However, in the meantime, here's a workaround I used in my own project. You may need to override more methods if you use other types of input

use std::fmt;
use dialoguer::theme::Theme;

pub struct MyTheme;

impl Theme for MyTheme {
    /// Formats a prompt.
    fn format_prompt(&self, f: &mut dyn fmt::Write, prompt: &str) -> fmt::Result {
        write!(f, "{prompt}")
    }

    /// Formats an input prompt.
    fn format_input_prompt(
        &self,
        f: &mut dyn fmt::Write,
        prompt: &str,
        default: Option<&str>,
    ) -> fmt::Result {
        match default {
            Some(default) => write!(f, "[{default}] {prompt}"),
            None => write!(f, "{prompt} "),
        }
    }

    /// Formats an input prompt after selection.
    fn format_input_prompt_selection(
        &self,
        f: &mut dyn fmt::Write,
        prompt: &str,
        selection: &str,
    ) -> fmt::Result {
        write!(f, "{prompt} {selection}")
    }
}

fn main() {
  let response = dialoguer::Input::with_theme(&MyTheme).with_prompt(">").interact().unwrap();
}