use crate::tests::prelude::*;
track_file!("ref/asciidoc-lang/docs/modules/sections/pages/chapters.adoc");
non_normative!(
r#"
= Chapters
[#chapter-signifier]
== Customize the chapter signifier
If the `chapter-signifier` (i.e., prefix) is set, the value of this attribute is automatically added to the beginning of chapter titles in a book when the `sectnums` attribute is also set.
The signifier is offset from the auto-generated chapter number by a space.
For example, the chapter title may appear in the output document as follows:
Chapter 1. Title
A chapter is defined as a level 1 section without a block style when the doctype type is book.
You can modify the signifier by defining the `chapter-signifier` attribute in the header of your book.
----
:chapter-signifier: Peatükk
----
To remove the prefix, unset the `chapter-signifier` attribute in the document header:
----
:!chapter-signifier:
----
"#
);