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//! Non-lazy continuation.
//!
//! This is a tiny helper that [flow][] constructs can use to make sure that
//! the following line is not lazy.
//! For example, [html (flow)][html_flow] and code ([fenced][code_fenced],
//! [indented][code_indented]), stop when next line is lazy.
//!
//! [flow]: crate::content::flow
//! [code_fenced]: crate::construct::code_fenced
//! [code_indented]: crate::construct::code_indented
//! [html_flow]: crate::construct::html_flow
use crate::token::Token;
use crate::tokenizer::{Code, State, Tokenizer};
/// Start of continuation.
///
/// ```markdown
/// > | * ```js
/// ^
/// | b
/// ```
pub fn start(tokenizer: &mut Tokenizer, code: Code) -> State {
match code {
Code::CarriageReturnLineFeed | Code::Char('\n' | '\r') => {
tokenizer.enter(Token::LineEnding);
tokenizer.consume(code);
tokenizer.exit(Token::LineEnding);
State::Fn(Box::new(after))
}
_ => State::Nok,
}
}
/// After line ending.
///
/// ```markdown
/// | * ```js
/// > | b
/// ^
/// ```
fn after(tokenizer: &mut Tokenizer, code: Code) -> State {
if tokenizer.lazy {
State::Nok
} else {
State::Ok(if matches!(code, Code::None) { 0 } else { 1 })
}
}
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