Feature Request: Custom Counter Style

[samueldodson]

Hi, @tomduck. Can I customize the counter style of figures and figure references? A counter-style variable could be used to set the style:

counter-style: Roman

Styles could be:

arabic -> 1, 2, 3, ...
alph -> a, b, c, ...
Alph -> A, B, C, ...
roman -> i, ii, iii, ...
Roman -> I, II, III, ...

Thank you.

[khalid-hussain]

We can also add a slightly more enhanced style as well.

Example:
heading.figureno -> 1.1, 1.2, 1.3, ...

[ghost]

How the numbers are presented is presentation logic and really belongs in the application responsible for rendering the result. The application could be ConTeXt, LaTeX, CSS (in case of HTML), and so forth. While it would be convenient to put it in the Markdown, it seems to move away from the separation of content and presentation.

[tomduck]

This is a very good point, @DaveJarvis. I know this is easy to do in LaTeX, but I'm not sure how I would do it in CSS -- or if the pandoc-fignos html is written correctly to take advantage of this possibility. Can you comment further?

[ghost]

Consider the following Markdown document:

1. Line 1
1. Line 2
1. Line 3

Converted to HTML:

<ol><li>Line 1</li><li>Line 2</li><li>Line 3</li></ol>

With CSS, you can change how the number format is presented to the reader throughout the entire document:

ol {list-style-type: upper-roman;}

Now, arguably, if you wanted to convert only one list in the document (instead of all lists), you'd have to find a different way to style it. This might mean marking up the document a little differently to describe the intent of the section, such as:

::: algorithm
1. Line 1
1. Line 2
1. Line 3
:::

This becomes:

<div class="algorithm">
<ol><li>Line 1</li><li>Line 2</li><li>Line 3</li></ol>
</div>

And it's trivial to change the CSS for only that single list accordingly:

div.algorithm ol {list-style-type: upper-roman;}

ConTeXt is syntactically different, but the concept is the same.

I don't know if pandoc-fignos is written to take advantage of this possibility.