Resetable figure caption numbers

[yoonghm]

Description

I would like to have a have a format with the following requirements:

1. Top-level headings are prefixed by a string, such as "Chapter 1", "Chapter 2", etc.
2. Figure and table numbers within a chapter is denoted using chapter number, and a running alphabet sequence, such as "Fig 1a", "Fig 1b" in "Chapter 1"; "Fig 2a", "Fig 2b" in "Chapter 2".

In Adobe Framemaker (FM), the auto-numbering format is handled using lists of integers See https://help.adobe.com/en_US/framemaker/using/using-framemaker/user-guide/frm_page_layout_pl-styles-lists-and-autonumbering.html

Let me illustrate here:

Paragraph Style	Auto-numbering Format
Heading 1	H: Chapter <n+>.< =0>< =0>< =0>
Heading 2	H: <n>.<n+>< >< >
Figure	Figure: <n>< >-<a+>< >
Table	Table: <n>< >< ><A+>

Explanation:

1. <n+> instructs FM to increment the numerical value by 1 whenever the paragraph format is encountered, and display the value.
2. <n> instructs FM to display the value.
3. < =0> instructs FM not to display the value, and reset the value to 0
4. < > instructs FM not to display the value.
5. <a+> instructs FM to increment the alphabet (in small capital) by 1, and display the value.
6. <A+> instructs FM to increment the alphabet (in big capital) by 1, and display the value.

So we would have the following auto-numbering strings:

Chapter 1
1.1
1.2
Figure 1-a
Figure 1-b
Table 1A
Table 1B
Figure 1.3

Chapter 2
Figure 2-a
Figure 2-b
2.1
2.2

[mcanouil]

I don't see any other solution than for you to implement that as a Lua Filter, see https://quarto.org/docs/extensions/filters.html.

[yoonghm]

Based on your suggestion on pandoc, I noticed that pandoc has provided such function but the format may not be compatible with markdown syntax. I would need to test ot out.

https://pandoc-numbering.readthedocs.io/en/latest/numbering.html

[yoonghm]

I have followed the steps in the pandoc documentation. It does not work. Quarto applies different parameters when invoking pandoc.

[cscheid]

I'd like to support this, but there are some of things blocking our ability to do that generically. See the second bullet item in #4944 if you want to track our progress on it.

[yoonghm]

Quarto is a good efforts in limiting the numbers of input and output document types. I am still new to Quarto and pandoc.

I am not sure if the following proposals are sensible and workable:

# Heading 1 Using Default Paragraph Style

A body text that uses default paragraph style
This line continues from previous line.

# Heading 1 using Special Paragraph Style {#ps-heading_style_1}

A body text that uses default paragraph style
This line continues from previous line.

Another body text that uses a customized paragraph style.
This line continues from previous line. {#ps-body_style_1}

## Heading 2 using default paragraph style

A body text that uses default paragraph style
This line continues from previous line.

## Heading 2 using a customized paragraph style {#ps-heading_style_2}

A body text that uses default paragraph style
This line continues from previous line.

{#ps, similar to {#fig- for figure caption, instruct Quarto to consider different paragraph style.

heading_style_1, body_style_1, heading_style_2 are customized style which are defined per project or globally for several projects.

[cscheid]

Unfortunately it's not; we reserve *- prefixes for cross references.