Text decorator functions for all elements?

[robinkrahl]

Is it possible to implement text decorator functions for all elements? The current implementations for plain and rich text are already very helpful, but I would like to tweak the appearance of some specific elements. Let’s say I want to print headings with a bold typeface or I want to set the color based on the element’s class. This could be done with functions like:

fn decorate_element_start(&self, name: &str, attrs: HashMap<String, String>) -> Self::Annotation
fn decorate_element_end(&self, name: &str) -> Self::Annotation

[jugglerchris]

That sounds potentially useful, and could become part of the solution for #20.

I'm slightly concerned at the overhead (creating hash maps and calling the decorator for every element), but I guess the compiler could remove most of that for decorators which don't make use of it.

[jugglerchris]

Things have moved on since 2020 (!!) and some of this is now possible.

or I want to set the color based on the element’s class

In recent releases, with the css feature, this can be something like:

config::rich()
  .add_agent_css(r#"
    .someclass { color: #aabbcc; }
"#)?

#199 makes it possible to add text before/after elements.

Let’s say I want to print headings with a bold typeface

This isn't yet possible, but I hope to replace the special handling of <em> etc. with style rules too.