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diff --git a/src/construct/hard_break_trailing.rs b/src/construct/hard_break_trailing.rs
deleted file mode 100644
index f0ef83b..0000000
--- a/src/construct/hard_break_trailing.rs
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-//! Hard break (trailing) is a construct that occurs in the  [text][] content
-//! type.
-//!
-//! They’re formed with the following BNF:
-//!
-//! ```bnf
-//! ; Restriction: followed by a line ending  (that is part of the construct
-//! ; instead of ending it).
-//! hard_break_trailing ::= 2*' '
-//! ```
-//!
-//! The minimum number of the spaces is defined in
-//! [`HARD_BREAK_PREFIX_SIZE_MIN`][hard_break_prefix_size_min].
-//!
-//! Hard breaks in markdown relate to the HTML element `<br>`.
-//! See [*§ 4.5.27 The `br` element* in the HTML spec][html] for more info.
-//!
-//! It is also possible to create a hard break with a similar construct: a
-//! [hard break (escape)][hard_break_escape] is a backslash followed
-//! by a line ending.
-//! That construct is recommended because it is similar to a
-//! [character escape][character_escape] and similar to how line endings can be
-//! “escaped” in other languages.
-//! Trailing spaces are typically invisible in editors, or even automatically
-//! removed, making hard break (trailing) hard to use.
-//!
-//! ## Tokens
-//!
-//! *   [`HardBreakTrailing`][Token::HardBreakTrailing]
-//! *   [`HardBreakTrailingSpace`][Token::HardBreakTrailingSpace]
-//!
-//! ## References
-//!
-//! *   [`lib/initialize/text.js` in `micromark`](https://github.com/micromark/micromark/blob/main/packages/micromark/dev/lib/initialize/text.js)
-//! *   [*§ 6.7 Hard line breaks* in `CommonMark`](https://spec.commonmark.org/0.30/#hard-line-breaks)
-//!
-//! [text]: crate::content::text
-//! [hard_break_escape]: crate::construct::hard_break_escape
-//! [character_escape]: crate::construct::character_escape
-//! [hard_break_prefix_size_min]: crate::constant::HARD_BREAK_PREFIX_SIZE_MIN
-//! [html]: https://html.spec.whatwg.org/multipage/text-level-semantics.html#the-br-element
-
-use crate::constant::HARD_BREAK_PREFIX_SIZE_MIN;
-use crate::token::Token;
-use crate::tokenizer::{Code, State, Tokenizer};
-
-/// Start of a hard break (trailing).
-///
-/// ```markdown
-/// > | a␠␠
-///      ^
-///   | b
-/// ```
-pub fn start(tokenizer: &mut Tokenizer) -> State {
-    match tokenizer.current {
-        Code::Char(' ') if tokenizer.parse_state.constructs.hard_break_trailing => {
-            tokenizer.enter(Token::HardBreakTrailing);
-            tokenizer.enter(Token::HardBreakTrailingSpace);
-            tokenizer.consume();
-            State::Fn(Box::new(|t| inside(t, 1)))
-        }
-        _ => State::Nok,
-    }
-}
-
-/// Inside the hard break (trailing).
-///
-/// ```markdown
-/// > | a␠␠
-///      ^
-///   | b
-/// ```
-fn inside(tokenizer: &mut Tokenizer, size: usize) -> State {
-    match tokenizer.current {
-        Code::Char(' ') => {
-            tokenizer.consume();
-            State::Fn(Box::new(move |t| inside(t, size + 1)))
-        }
-        Code::CarriageReturnLineFeed | Code::Char('\n' | '\r')
-            if size >= HARD_BREAK_PREFIX_SIZE_MIN =>
-        {
-            tokenizer.exit(Token::HardBreakTrailingSpace);
-            tokenizer.exit(Token::HardBreakTrailing);
-            State::Ok
-        }
-        _ => State::Nok,
-    }
-}