size: 1004 B

  

Capitalize text:
```
*Hello* world `code`
!
return {
  str = function(e)
    e.text = e.text:upper()
  end
}
.
<p><strong>HELLO</strong> WORLD <code>code</code></p>
```
Capitalize text inside emphasis only:
```
_Hello *world*_ outside
!
local capitalize = 0
return {
   emph = {
     enter = function(e)
       capitalize = capitalize + 1
     end,
     exit = function(e)
       capitalize = capitalize - 1
     end,
   },
   str = function(e)
     if capitalize > 0 then
       e.text = e.text:upper()
      end
   end
}
.
<p><em>HELLO <strong>WORLD</strong></em> outside</p>
```
Capitalize text except in footnotes:
``` a
Hello[^1].
[^1]: This is a note.
!
return {
  str = function(e)
    e.text = e.text:upper()
  end,
  footnote = {
    enter = function(e)
      return true  -- prevent traversing into children
    end
  }
}
.
doc
  para
    str text="HELLO"
    footnote_reference text="1"
    str text="."
footnotes
  ["1"] =
    footnote
      para
        str text="This is a note."
```