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//! The string content type.
//!
//! **String** is a limited [text][] like content type which only allows
//! character escapes and character references.
//! It exists in things such as identifiers (media references, definitions),
//! titles, URLs, code (fenced) info and meta parts.
//!
//! The constructs found in string are:
//!
//! * [Character escape][crate::construct::character_escape]
//! * [Character reference][crate::construct::character_reference]
//!
//! [text]: crate::content::text
use crate::construct::{
character_escape::start as character_escape, character_reference::start as character_reference,
partial_data::start as data, partial_whitespace::create_resolve_whitespace,
};
use crate::tokenizer::{Code, State, Tokenizer};
const MARKERS: [Code; 2] = [Code::Char('&'), Code::Char('\\')];
/// Start of string.
pub fn start(tokenizer: &mut Tokenizer) -> State {
tokenizer.register_resolver(
"whitespace".to_string(),
Box::new(create_resolve_whitespace(false, false)),
);
before(tokenizer)
}
/// Before string.
fn before(tokenizer: &mut Tokenizer) -> State {
match tokenizer.current {
Code::None => State::Ok,
_ => tokenizer.attempt_n(
vec![Box::new(character_reference), Box::new(character_escape)],
|ok| Box::new(if ok { before } else { before_data }),
)(tokenizer),
}
}
/// At data.
fn before_data(tokenizer: &mut Tokenizer) -> State {
tokenizer.go(|t| data(t, &MARKERS), before)(tokenizer)
}
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