use winnow::{Parser, ascii::space0, combinator::eof, error::ErrMode, token::literal};
pub fn parse(
input: &mut &str,
) -> winnow::error::Result<super::Metacommand, ErrMode<winnow::error::ContextError>> {
literal('\\').parse_next(input)?;
literal('q').parse_next(input)?;
space0.parse_next(input)?;
eof.parse_next(input)?;
Ok(super::Metacommand::Quit)
}
#[cfg(test)]
mod tests {
use super::super::*;
#[test]
fn test_parse_metacommand_quit() {
let result = parse_metacommand(r"\q").unwrap();
assert_eq!(result, Some(Metacommand::Quit));
}
#[test]
fn test_parse_metacommand_quit_with_whitespace() {
let result = parse_metacommand(r" \q ").unwrap();
assert_eq!(result, Some(Metacommand::Quit));
}
#[test]
fn test_parse_metacommand_quit_with_text_after() {
let result = parse_metacommand(r"\q quit now").unwrap();
assert_eq!(result, None);
}
}