Wrong numeration of appendix chapters

[stfnp]

When using the [appendix] annotation, the numeration (A, B, C, ...) of the chapters shown in the table of contents seems to be wrong.

Below is a simple example that has two top-level appendix chapters with two subsections each. The result produced by asciidoctor-multipage book.adoc (version 0.0.15 using asciidoctor version 2.0.17) is shown in the screenshot below: The top-level chapters of the appendix are incorrectly named C and D in the table of contents, but are correctly named A and B in the document itself. The subsections however are named correctly in both places. When testing the same input with the standard single-page html5 converter it produced the expected result, so I hope my input is right.

Input

= Appendix-Test
:doctype: book
:lang: en
:toc: left
:toclevels: 2
:numbered:

[appendix]
== First Chapter

=== First Section

=== Second Section

[appendix]
== Second Chapter

=== First Section

=== Second Section

Output

[owenh000]

@stfnp, I see the same behavior. Thanks for the report!

[owenh000]

See also duplicate issue #37, particularly the test case in this comment.

This incorrect behavior still occurs with Asciidoctor v2.0.17 and asciidoctor-multipage v0.0.16.

[NGRsoftlab]

Hello, is there any solution for the problem? We've got the same issue. Example:

= Book
:doctype: book
:lang: ru
:toc: macro
:toclevels: 6
:sectnums:
:sectnumlevels: 6
:xrefstyle: short
:appendix-number: 0

== chap1

Some text

== chap2

Some text

== chap3

Some text

== chap4

Some text

== chap5

Some text

== chap6

Some text

== chap7

Some text

== chap8

Some text

== chap9

Some text

== chap10

Some text

== chap11

Some text

== chap12

Some text

== chap13

Some text

== chap20

Some text

[appendix]
== app1

Some appendix

[appendix]
== app2

Some appendix

[appendix]
== app3

Some appendix

[appendix]
== app4

Some appendix

[appendix]
== app5

Some appendix

Transformation:

asciidoctor-multipage \
            -D html-out \
            -a toc=left \
            -a docinfo=shared \
            -a chapter-signifier="" \
            -a chapter-refsig="" \
            -a section-refsig="" \
                book.adoc

Result:

[owenh000]

This issue requires #46 to be done first.