jgm/pandoc: pandoc 2.1.1

Markdown reader:

• Don't coalesce adjacent raw LaTeX blocks if they are separated by a blank line. See lierdakil/pandoc-crossref#160.
• Improved inlinesInBalancedBrackets (#4272, jgm/pandoc-citeproc#315). The change both improves performance and fixes a regression whereby normal citations inside inline notes and figure captions were not parsed correctly.

RST reader:

• Better handling for headers with an anchor (#4240). Instead of creating a Div containing the header, we put the id directly on the header. This way header promotion will work properly.
• Add aligned environment when needed in math (#4254). rst2latex.py uses an align* environment for math in .. math:: blocks, so this math may contain line breaks. If it does, we put the math in an aligned environment to simulate rst2latex.py's behavior.

HTML reader:

• Fix col width parsing for percentages \< 10% (#4262, n3fariox).

LaTeX reader:

• Advance source position at end of stream.

• Pass through macro defs in rawLaTeXBlock even if the latex_macros extension is set (#4246). This reverts to earlier behavior and is probably safer on the whole, since some macros only modify things in included packages, which pandoc's macro expansion can't modify.

• Fixed pos calculation in tokenizing escaped space.

• Allow macro definitions inside macros (#4253). Previously we went into an infinite loop with

  \newcommand{\noop}[1]{#1}
  \noop{\newcommand{\foo}[1]{#1}}
  \foo{hi}
  

• Fix inconsistent column widths (#4238). This fixes a bug whereby column widths for the body were different from widths for the header in some tables.

Docx reader (Jesse Rosenthal):

• Parse hyperlinks in instrText tags (#3389, #4266). This was a form of hyperlink found in older versions of word. The changes introduced for this, though, create a framework for parsing further fields in MS Word (see the spec, ECMA-376-1:2016, §17.16.5, for more on these fields). We introduce a new module, Text.Pandoc.Readers.Docx.Fields which contains a simple parsec parser. At the moment, only simple hyperlink fields are accepted, but that can be extended in the future.

Muse reader (Alexander Krotov):

• Parse ~~ as non-breaking space in Text::Amuse mode.
• Refactor list parsing.

Powerpoint writer (Jesse Rosenthal):

• Change reference to notesSlide to endNotesSlide.
• Move image sizing into picProps.
• Improve table placement.
• Make our own _rels/.rels file.
• Import reference-doc images properly.
• Move Presentation.hs out of PandocMonad.
• Refactor into separate modules. T.P.W.Powerpoint.Presentation defines the Presentation datatype and goes Pandoc->Presentation; T.P.W.Pandoc.Output goes Presentation->Archive. Text.Pandoc.Writers.Powerpoint a thin wrapper around the two modules.
• Avoid overlapping blocks in column output.
• Position images correctly in two-column layout.
• Make content shape retrieval environment-aware.
• Improve image handling. We now determine image and caption placement by getting the dimensions of the content box in a given layout. This allows for images to be correctly sized and positioned in a different template. Note that images without captions and headers are no longer full-screened. We can't do this dependably in different layouts, because we don't know where the header is (it could be to the side of the content, for example).
• Read presentation size from reference file. Our presentation size is now dependent on the reference/template file we use.
• Handle (sub)headers above slidelevel correctly. Above the slidelevel, subheaders will be printed in bold and given a bit of extra space before them. Note that at the moment, no distinction is made between levels of headers above the slide header, though that can be changed.
• Check for required files. Since we now import from reference/dist file by glob, we need to make sure that we're getting the files we need to make a non-corrupt Powerpoint. This performs that check.
• Improve templating using --reference-doc. Templating should work much more reliably now.
• Include Notes slide in TOC.
• Set notes slide header to slide-level.
• Add table of contents. This is triggered by the --toc flag. Note that in a long slide deck this risks overrunning the text box. The user can address this by setting --toc-depth=1.
• Set notes slide number correctly.
• Clean up adding metadata slide. We want to count the slide numbers correctly if it's in there.
• Add anchor links. For anchor-type links ([foo](#bar)) we produce an anchor link. In powerpoint these are links to slides, so we keep track of a map relating anchors to the slides they occur on.
• Make the slide number available to the blocks. For anchors, block-processing functions need to know what slide number they're in. We make the envCurSlideId available to blocks.
• Move curSlideId to environment.
• Allow setting toc-title in metadata.
• Link notes to endnotes slide.

Markdown writer:

• Fix cell width calculation (#4265). Previously we could get ever-lengthening cell widths when a table was run repeatedly through pandoc -f markdown -t markdown.

LaTeX writer:

• Escape & in lstinline (Robert Schütz).

ConTeXt writer:

• Use xtables instead of Tables (#4223, Henri Menke). Default to xtables for context output. Natural Tables are used if the new ntb extension is set.

HTML writer:

• Fixed footnote backlinks with --id-prefix (#4235).

Text.Pandoc.Extensions: Added Ext_ntb constructor (API change, Henri Menke).

Text.Pandoc.ImageSize: add derived Eq instance to Dimension (Jesse Rosenthal, API change).

Lua filters (Albert Krewinkel):

• Make PANDOC_READER_OPTIONS available. The options which were used to read the document are made available to Lua filters via the PANDOC_READER_OPTIONS global.
• Add lua module pandoc.utils.run_json_filter, which runs a JSON filter on a Pandoc document.
• Refactor filter-handling code into Text.Pandoc.Filter.JSON, Text.Pandoc.Filter.Lua, and Text.Pandoc.Filter.Path.
• Improve error messages. Provide more context about the task which caused an error.

data/pandoc.lua (Albert Krewinkel):

• Accept singleton inline as a list. Every constructor which accepts a list of inlines now also accepts a single inline element for convenience.
• Accept single block as singleton list. Every constructor which accepts a list of blocks now also accepts a single block element for convenience. Furthermore, strings are accepted as shorthand for {pandoc.Str "text"} in constructors.
• Add attr, listAttributes accessors. Elements with attributes got an additional attr accessor. Attributes were accessible only via the identifier, classes, and attributes, which was in conflict with the documentation, which indirectly states that such elements have the an attr property.
• Drop _VERSION. Having a _VERSION became superfluous, as this module is closely tied to the pandoc version, which is available via PANDOC_VERSION.
• Fix access to Attr components. Accessing an Attr value (e.g., Attr().classes) was broken; the more common case of accessing it via an Inline or Block element was unaffected by this.

Move metaValueToInlines to from Docx writer to Text.Pandoc.Writers.Shared, so it can be used by other writers (Jesse Rosenthal).

MANUAL.txt:

• Clarify otherlangs in LaTeX (#4072).
• Clarify latex_macros extension.
• Recommend use of raw_attribute extension in header includes (#4253).

Allow latest QuickCheck, tasty, criterion.

Remove custom prelude and ghc 7.8 support.

Reduce compiler noise (exact paths for compiled modules).