pandoc 2.0.3

• Lua filters: preload text module (Albert Krewinkel, #4077).
  The text module is preloaded in lua. The module contains some UTF-8
  aware string functions, implemented in Haskell. The module is loaded on
  request only, e.g.:

  text = require 'text'
  function Str (s)
    s.text = text.upper(s.text)
    return s
  end
  

• Allow table-like access to attributes in lua filters (Albert Krewinkel,
  #4071). Attribute lists are represented as associative lists in Lua. Pure
  associative lists are awkward to work with. A metatable is attached to
  attribute lists, allowing to access and use the associative list as if
  the attributes were stored in as normal key-value pair in table.
  Note that this changes the way pairs works on attribute lists. Instead
  of producing integer keys and two-element tables, the resulting iterator
  function now returns the key and value of those pairs. Use ipairs to
  get the old behavior. Warning: the new iteration mechanism only works if
  pandoc has been compiled with Lua 5.2 or later (current default: 5.3).

• Text.Pandoc.Parsing.uri: allow & and = as word characters (#4068).
  This fixes a bug where pandoc would stop parsing a URI with an
  empty attribute: for example, &a=&b= wolud stop at a.
  (The uri parser tries to guess which punctuation characters
  are part of the URI and which might be punctuation after it.)

• Introduce HasSyntaxExtensions typeclass (Alexander Krotov, #4074).

  • Added new HasSyntaxExtensions typeclass for ReaderOptions and
    WriterOptions.
  • Reimplemented isEnabled function from Options.hs to accept both
    ReaderOptions and WriterOptions.
  • Replaced enabled from CommonMark.hs with new isEnabled.

• Add amuse extension (Alexander Krotov) to enable Amuse wiki
  behavior for muse. New Ext_amuse constructor for
  Extension. Note: this is switched on by default; for
  Emacs behavior, use muse-amuse.

• Muse reader (Alexander Krotov):

  • Count only one space as part of list item marker.
  • Produce SoftBreaks on newlines. Now wrapping can be preserved
    with --wrap=preserve.
  • Add Text::Amuse footnote extensions. Footnote end is indicated by
    indentation, so footnotes can be placed anywhere in the text,
    not just at the end of it.
  • Accept Emacs Muse definition lists when -amuse.
    Emacs Muse does not require indentation.

• HTML reader:

  • Ensure we don’t produce level 0 headers (#4076), even for chapter
    sections in epubs. This causes problems because writers aren’t set
    up to expect these.
  • Allow spaces after \( and before \) with tex_math_single_backslash.
    Previously \( \frac{1}{a} < \frac{1}{b} \) was not parsed as math in
    markdown or html +tex_math_single_backslash.

• MANUAL: clarify that math extensions work with HTML.
  Clarify that tex_math_dollars and tex_math_single_backslash
  will work with HTML as well as Markdown.

• Creole reader: Fix performance issue for longer lists (Sascha Wilde,
  #4067).

• RST reader: better support for ‘container’ directive (#4066).
  Create a div, incorporate name attribute and classes.

• LaTeX reader:

  • Support column specs like *{2}{r} (#4056). This is equivalent to
    rr. We now expand it like a macro.
  • Allow optional args for parbox (#4056).
  • Allow optional arguments on \footnote (#4062).

• EPUB writer: Fixed path for cover image (#4069). It was previously
  media/media/imagename, and should have been media/imagename.

• Markdown writer: fix bug with doubled footnotes in grid tables
  (#4061).

• LaTeX template: include natbib/biblatex after polyglossia (#4073).
  Otherwise we seem to get an error; biblatex wants polyglossia
  language to be defined.

• Added examples to lua filters documentation.