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//! The text content type.
//!
//! **Text** contains phrasing content such as
//! [attention][crate::construct::attention] (emphasis, strong),
//! [code (text)][crate::construct::code_text], and actual text.
//!
//! The constructs found in text are:
//!
//! * [Attention][crate::construct::attention]
//! * [Autolink][crate::construct::autolink]
//! * [Character escape][crate::construct::character_escape]
//! * [Character reference][crate::construct::character_reference]
//! * [Code (text)][crate::construct::code_text]
//! * [Hard break (escape)][crate::construct::hard_break_escape]
//! * [Hard break (trailing)][crate::construct::hard_break_trailing]
//! * [HTML (text)][crate::construct::html_text]
//! * [Label start (image)][crate::construct::label_start_image]
//! * [Label start (link)][crate::construct::label_start_link]
//! * [Label end][crate::construct::label_end]
use crate::construct::{
attention::start as attention, autolink::start as autolink,
character_escape::start as character_escape, character_reference::start as character_reference,
code_text::start as code_text, hard_break_escape::start as hard_break_escape,
hard_break_trailing::start as hard_break_trailing, html_text::start as html_text,
label_end::start as label_end, label_start_image::start as label_start_image,
label_start_link::start as label_start_link, partial_data::start as data,
partial_whitespace::whitespace,
};
use crate::tokenizer::{Code, State, StateFnResult, Tokenizer};
/// Before text.
pub fn start(tokenizer: &mut Tokenizer, code: Code) -> StateFnResult {
let mut markers = vec![
Code::VirtualSpace, // `whitespace`
Code::Char('\t'), // `whitespace`
Code::Char(' '), // `hard_break_trailing`, `whitespace`
];
if tokenizer.parse_state.constructs.label_start_image {
markers.push(Code::Char('!'));
}
if tokenizer.parse_state.constructs.character_reference {
markers.push(Code::Char('&'));
}
if tokenizer.parse_state.constructs.attention {
markers.push(Code::Char('*'));
}
if tokenizer.parse_state.constructs.autolink || tokenizer.parse_state.constructs.html_text {
markers.push(Code::Char('<'));
}
if tokenizer.parse_state.constructs.label_start_link {
markers.push(Code::Char('['));
}
if tokenizer.parse_state.constructs.character_escape
|| tokenizer.parse_state.constructs.hard_break_escape
{
markers.push(Code::Char('\\'));
}
if tokenizer.parse_state.constructs.label_end {
markers.push(Code::Char(']'));
}
if tokenizer.parse_state.constructs.attention {
markers.push(Code::Char('_'));
}
if tokenizer.parse_state.constructs.code_text {
markers.push(Code::Char('`'));
}
before_marker(tokenizer, code, markers)
}
/// Before text.
fn before_marker(tokenizer: &mut Tokenizer, code: Code, markers: Vec<Code>) -> StateFnResult {
match code {
Code::None => (State::Ok, None),
_ => tokenizer.attempt_n(
vec![
Box::new(attention),
Box::new(autolink),
Box::new(character_escape),
Box::new(character_reference),
Box::new(code_text),
Box::new(hard_break_escape),
Box::new(hard_break_trailing),
Box::new(html_text),
Box::new(label_end),
Box::new(label_start_image),
Box::new(label_start_link),
Box::new(whitespace),
],
|ok| {
let func = if ok { before_marker } else { before_data };
Box::new(move |t, c| func(t, c, markers))
},
)(tokenizer, code),
}
}
/// At data.
///
/// ```markdown
/// |qwe
/// ```
fn before_data(tokenizer: &mut Tokenizer, code: Code, markers: Vec<Code>) -> StateFnResult {
let copy = markers.clone();
tokenizer.go(|t, c| data(t, c, copy), |t, c| before_marker(t, c, markers))(tokenizer, code)
}
|
