markdown-ppp 2.9.2

Feature-rich Markdown Parsing and Pretty-Printing library
Documentation 
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use crate::ast::{Inline, LinkReference};
use crate::parser::link_util::link_label;
use crate::parser::MarkdownParserState;
use nom::{branch::alt, bytes::complete::tag, sequence::terminated, IResult, Parser};
use std::rc::Rc;

pub(crate) fn reference_link<'a>(
    state: Rc<MarkdownParserState>,
) -> impl FnMut(&'a str) -> IResult<&'a str, Inline> {
    move |input: &'a str| {
        alt((
            reference_link_full(state.clone()),
            reference_link_collapsed(state.clone()),
            reference_link_shortcut(state.clone()),
        ))
        .parse(input)
    }
}

pub(crate) fn reference_link_full<'a>(
    state: Rc<MarkdownParserState>,
) -> impl FnMut(&'a str) -> IResult<&'a str, Inline> {
    move |input: &'a str| {
        let (input, (text, label)) =
            (link_label(state.clone()), link_label(state.clone())).parse(input)?;
        let link_reference = LinkReference { label, text };
        Ok((input, Inline::LinkReference(link_reference)))
    }
}

pub(crate) fn reference_link_collapsed<'a>(
    state: Rc<MarkdownParserState>,
) -> impl FnMut(&'a str) -> IResult<&'a str, Inline> {
    move |input: &'a str| {
        let (input, text) = terminated(link_label(state.clone()), tag("[]")).parse(input)?;
        let link_reference = LinkReference {
            label: text.clone(),
            text,
        };
        Ok((input, Inline::LinkReference(link_reference)))
    }
}

pub(crate) fn reference_link_shortcut<'a>(
    state: Rc<MarkdownParserState>,
) -> impl FnMut(&'a str) -> IResult<&'a str, Inline> {
    move |input: &'a str| {
        let (input, text) = link_label(state.clone()).parse(input)?;
        let link_reference = LinkReference {
            label: text.clone(),
            text,
        };
        Ok((input, Inline::LinkReference(link_reference)))
    }
}