We're having the build fail with
```
windows\ghc-8.6.5\mingw\bin\strip.exe: unable to rename 'C:\sr\snapshots\c886f694\bin\happy.exe'; reason: File exists
```
This deprecates the use of the external pandoc-citeproc
filter; citation processing is now built in to pandoc.
* Add dependency on citeproc library.
* Add Text.Pandoc.Citeproc module (and some associated unexported
modules under Text.Pandoc.Citeproc). Exports `processCitations`.
[API change]
* Add data files needed for Text.Pandoc.Citeproc: default.csl
in the data directory, and a citeproc directory that is just
used at compile-time. Note that we've added file-embed as a mandatory
rather than a conditional depedency, because of the biblatex
localization files. We might eventually want to use readDataFile
for this, but it would take some code reorganization.
* Text.Pandoc.Loging: Add `CiteprocWarning` to `LogMessage` and use it
in `processCitations`. [API change]
* Add tests from the pandoc-citeproc package as command tests (including
some tests pandoc-citeproc did not pass).
* Remove instructions for building pandoc-citeproc from CI and
release binary build instructions. We will no longer distribute
pandoc-citeproc.
* Markdown reader: tweak abbreviation support. Don't insert a
nonbreaking space after a potential abbreviation if it comes right before
a note or citation. This messes up several things, including citeproc's
moving of note citations.
* Add `csljson` as and input and output format. This allows pandoc
to convert between `csljson` and other bibliography formats,
and to generate formatted versions of CSL JSON bibliographies.
* Add module Text.Pandoc.Writers.CslJson, exporting `writeCslJson`. [API
change]
* Add module Text.Pandoc.Readers.CslJson, exporting `readCslJson`. [API
change]
* Added `bibtex`, `biblatex` as input formats. This allows pandoc
to convert between BibLaTeX and BibTeX and other bibliography formats,
and to generated formatted versions of BibTeX/BibLaTeX bibliographies.
* Add module Text.Pandoc.Readers.BibTeX, exporting `readBibTeX` and
`readBibLaTeX`. [API change]
* Make "standalone" implicit if output format is a bibliography format.
This is needed because pandoc readers for bibliography formats put
the bibliographic information in the `references` field of metadata;
and unless standalone is specified, metadata gets ignored.
(TODO: This needs improvement. We should trigger standalone for the
reader when the input format is bibliographic, and for the writer
when the output format is markdown.)
* Carry over `citationNoteNum` to `citationNoteNumber`. This was just
ignored in pandoc-citeproc.
* Text.Pandoc.Filter: Add `CiteprocFilter` constructor to Filter.
[API change] This runs the processCitations transformation.
We need to treat it like a filter so it can be placed
in the sequence of filter runs (after some, before others).
In FromYAML, this is parsed from `citeproc` or `{type: citeproc}`,
so this special filter may be specified either way in a defaults file
(or by `citeproc: true`, though this gives no control of positioning
relative to other filters). TODO: we need to add something to the
manual section on defaults files for this.
* Add deprecation warning if `upandoc-citeproc` filter is used.
* Add `--citeproc/-C` option to trigger citation processing.
This behaves like a filter and will be positioned
relative to filters as they appear on the command line.
* Rewrote the manual on citatations, adding a dedicated Citations
section which also includes some information formerly found in
the pandoc-citeproc man page.
* Look for CSL styles in the `csl` subdirectory of the pandoc user data
directory. This changes the old pandoc-citeproc behavior, which looked
in `~/.csl`. Users can simply symlink `~/.csl` to the `csl`
subdirectory of their pandoc user data directory if they want
the old behavior.
* Add support for CSL bibliography entry formatting to LaTeX, HTML,
Ms writers. Added CSL-related CSS to styles.html.
This simplifies our build process a bit (over using
a customized alpine container).
Use new `--enable-executable-static` flag in build.
make_artifacts.sh: Fix deprecated find -perm syntax.
