use nom::error::VerboseError;
use nom::IResult;
use std::cell::RefCell;
use std::rc::Rc;

#[derive(Clone)]
pub struct NomContext<F> {
    pub fail_matcher: Rc<RefCell<F>>,

    /// You can't have nested bolds in org-mode
    pub can_match_bold: bool,
    pub can_match_link: bool,
}

impl<F> NomContext<F>
where
    F: for<'a> FnMut(&'a str) -> IResult<&'a str, &'a str, VerboseError<&'a str>>,
{
    pub fn new(fail_matcher: F) -> Self {
        NomContext {
            fail_matcher: Rc::new(RefCell::new(fail_matcher)),
            can_match_bold: true,
            can_match_link: true,
        }
    }

    pub fn with_no_bold(&self) -> NomContext<F> {
        NomContext {
            fail_matcher: self.fail_matcher.clone(),
            can_match_bold: false,
            can_match_link: self.can_match_link,
        }
    }
}