Screen readers read an image's `alt` attribute and the figure caption,
both of which come from the same source in pandoc. The figure caption is
hidden from screen readers with the `aria-hidden` attribute. This
improves accessibility.
For HTML4, where `aria-hidden` is not allowed, pandoc still uses an
empty `alt` attribute to avoid duplicate contents.
Closes: #6491
The reader now parses the contents of the markdown cell to a Pandoc
structure, but *also* stores the raw markdown in a `source`
attribute on the cell Div. When we convert back to markdown,
this attribute is stripped off and the original source is used.
When we convert to other formats, the attribute is usually
ignored (though it will come through in HTML as a `data-source`
attribute, not unhelpfully).
I'll note some potential drawbacks of this approach:
- It makes it impossible to use pandoc to clean up or
change the contents of markdown cells, e.g.
going from `+smart` to `-smart`.
- There may be formats where the addition of the `source`
attribute is problematic. I can't think of any, though.
Closes#5408.
The lines of unknown keywords, like `#+SOMEWORD: value` are no longer
read as metadata, but kept as raw `org` blocks. This ensures that more
information is retained when round-tripping org-mode files;
additionally, this change makes it possible to support non-standard org
extensions via filters.
The behavior of the `#+AUTHOR` and `#+KEYWORD` export settings has
changed: Org now allows multiple such lines and adds a space between the
contents of each line. Pandoc now always parses these settings as meta
inlines; setting values are no longer treated as comma-separated lists.
Note that a Lua filter can be used to restore the previous behavior.
`#+DESCRIPTION` lines are treated as text with markup. If multiple such
lines are given, then all lines are read and separated by soft
linebreaks.
Closes: #6485
The `tex` export option can be set with `#+OPTION: tex:nil` and allows
three settings:
- `t` causes LaTeX fragments to be parsed as TeX or added as raw TeX,
- `nil` removes all LaTeX fragments from the document, and
- `verbatim` treats LaTeX as text.
The default is `t`.
Closes: #4070
Braces are now always escaped, even within words or when surrounded by
whitespace. Jira and Confluence treat braces specially.
Package jira-wiki-markup must be version 1.3.2 or later.
Fixes: #6478
