Accessibility (HTML): Allow aria-label in <a> links

[tomschr]

Situation

When the DocBook HTML stylesheets creates an <a> link, but without an aria-label. This is an accessibility issue for site checkers like Siteimprove.

Proposed solution

I identified the named template simple.xlink. I see several solutions to this problem:

• Provide another xsl:param, let's say aria-label that can provide the necessary addition. By default, it could be set to the href attribute or the <link> content.
• Allow a more fine-granular customization by providing a named template simple.xlink.attr (or whatevery name you like) which is called inside the simple.xlink template. It creates additional attributes.

Reference

https://help.siteimprove.com/support/solutions/articles/80001050610-sia-r11-link-without-a-text-alternative-explained