Add built-in citation support using new citeproc library.

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.

1 files changed, 226 insertions, 0 deletions

diff --git a/test/command/bioethics.csl b/test/command/bioethics.csl
new file mode 100644
index 000000000..d5cc0774d
--- /dev/null
+++ b/test/command/bioethics.csl
@@ -0,0 +1,226 @@
+<?xml version="1.0" encoding="utf-8"?>
+<style xmlns="http://purl.org/net/xbiblio/csl" class="note" version="1.0" page-range-format="minimal-two" demote-non-dropping-particle="never" default-locale="en-GB">
+  <info>
+    <title>Bioethics</title>
+    <id>http://www.zotero.org/styles/bioethics</id>
+    <link href="http://www.zotero.org/styles/bioethics" rel="self"/>
+    <link href="http://www.zotero.org/styles/journal-of-roman-archaeology-b" rel="template"/>
+    <link href="http://onlinelibrary.wiley.com/journal/10.1111/(ISSN)1467-8519/homepage/ForAuthors.html" rel="documentation"/>
+    <author>
+      <name>Patrick O'Brien</name>
+    </author>
+    <category citation-format="note"/>
+    <category field="anthropology"/>
+    <issn>0269-9702</issn>
+    <eissn>1467-8519</eissn>
+    <updated>2017-07-12T11:26:44+00:00</updated>
+    <rights license="http://creativecommons.org/licenses/by-sa/3.0/">This work is licensed under a Creative Commons Attribution-ShareAlike 3.0 License</rights>
+  </info>
+  <macro name="editor">
+    <names variable="editor">
+      <name sort-separator=", " initialize-with="." delimiter=", "/>
+      <label form="short" prefix=", "/>
+      <substitute>
+        <text macro="container-author"/>
+      </substitute>
+    </names>
+  </macro>
+  <macro name="container-author">
+    <names variable="container-author" delimiter=", ">
+      <name sort-separator=", " initialize-with="." delimiter=", "/>
+    </names>
+  </macro>
+  <macro name="author">
+    <names variable="author">
+      <name initialize-with="."/>
+      <substitute>
+        <text macro="editor"/>
+        <text variable="title"/>
+      </substitute>
+    </names>
+  </macro>
+  <macro name="editor-short">
+    <names variable="editor">
+      <name form="short" sort-separator=", " delimiter=", "/>
+    </names>
+  </macro>
+  <macro name="container-author-short">
+    <names variable="container-author" delimiter=", ">
+      <name form="short" sort-separator=", " delimiter=", "/>
+      <et-al font-style="italic"/>
+    </names>
+  </macro>
+  <macro name="author-short">
+    <names variable="author">
+      <name form="short" sort-separator=", " delimiter=", "/>
+      <et-al font-style="italic"/>
+      <substitute>
+        <text macro="editor-short"/>
+        <text macro="container-author-short"/>
+        <text variable="title-short" font-style="italic"/>
+      </substitute>
+    </names>
+  </macro>
+  <macro name="collection">
+    <group delimiter=" " suffix=", ">
+      <text variable="collection-title"/>
+      <text variable="collection-number"/>
+    </group>
+  </macro>
+  <macro name="encyclopedia">
+    <group delimiter=" ">
+      <choose>
+        <if variable="title-short" match="any">
+          <text variable="title" form="short" font-style="italic"/>
+        </if>
+        <else>
+          <text variable="container-title" font-style="italic"/>
+        </else>
+      </choose>
+      <text variable="volume"/>
+      <date variable="issued" prefix="(" suffix=")">
+        <date-part name="year"/>
+      </date>
+      <text variable="page" suffix=","/>
+      <text variable="title" prefix="s.v. " quotes="true"/>
+      <text macro="author" prefix="(" suffix=")"/>
+    </group>
+  </macro>
+  <macro name="title">
+    <choose>
+      <if type="book thesis" match="any">
+        <text variable="title" font-style="italic"/>
+      </if>
+      <else-if type="webpage post-weblog" match="any">
+        <date form="text" variable="issued" suffix=". "/>
+        <text variable="title" font-style="italic" suffix=". "/>
+        <text variable="container-title" font-style="italic"/>
+      </else-if>
+      <else-if type="article-journal article-magazine article-newspaper" match="any">
+        <group delimiter=". ">
+          <text variable="title" quotes="false"/>
+          <group delimiter=" ">
+            <text variable="container-title" form="short" strip-periods="true" font-style="italic"/>
+            <group delimiter="; ">
+              <text macro="year-date"/>
+              <group delimiter=": ">
+                <group>
+                  <text variable="volume"/>
+                  <text variable="issue" prefix="(" suffix=")"/>
+                </group>
+                <text variable="page"/>
+              </group>
+            </group>
+          </group>
+        </group>
+      </else-if>
+      <else-if type="chapter paper-conference" match="any">
+        <group delimiter=". " suffix=". ">
+          <text macro="year-date"/>
+          <text variable="title" quotes="false"/>
+        </group>
+        <group delimiter=". ">
+          <group delimiter=" ">
+            <text term="in" text-case="capitalize-first"/>
+            <text macro="editor"/>
+          </group>
+          <text variable="container-title"/>
+        </group>
+      </else-if>
+      <else>
+        <text variable="title" font-style="italic" font-weight="bold"/>
+      </else>
+    </choose>
+  </macro>
+  <macro name="publisher">
+    <choose>
+      <if variable="collection-title" match="any">
+        <text macro="collection"/>
+      </if>
+      <else-if type="thesis">
+        <text variable="genre" suffix=","/>
+        <text variable="publisher"/>
+      </else-if>
+      <else>
+        <group delimiter=": ">
+          <text variable="publisher-place"/>
+          <text variable="publisher"/>
+        </group>
+      </else>
+    </choose>
+  </macro>
+  <macro name="year-date">
+    <choose>
+      <if variable="issued">
+        <date variable="issued">
+          <date-part name="year"/>
+        </date>
+      </if>
+      <else>
+        <text term="no date" form="short"/>
+      </else>
+    </choose>
+  </macro>
+  <macro name="locator">
+    <choose>
+      <if locator="page">
+        <text variable="locator" prefix=": "/>
+      </if>
+      <else-if locator="paragraph">
+        <text variable="locator" prefix="§"/>
+      </else-if>
+      <else-if type="webpage post-weblog" match="any">
+        <group delimiter=" " prefix=". ">
+          <group delimiter=": ">
+            <text term="available at" text-case="capitalize-first"/>
+            <text variable="URL"/>
+          </group>
+          <group delimiter=" " prefix="[" suffix="]">
+            <text term="accessed" text-case="capitalize-first"/>
+            <date form="text" variable="accessed"/>
+          </group>
+        </group>
+      </else-if>
+      <else>
+        <text variable="page" prefix=": "/>
+      </else>
+    </choose>
+  </macro>
+  <citation and="symbol" delimiter-precedes-et-al="always" delimiter-precedes-last="always" et-al-min="3" et-al-use-first="1">
+    <layout delimiter="; " suffix=".">
+      <choose>
+        <if type="entry-dictionary entry-encyclopedia" match="any">
+          <text macro="encyclopedia"/>
+        </if>
+        <else-if position="ibid-with-locator">
+          <group delimiter=" ">
+            <text term="ibid" suffix="."/>
+            <text macro="locator"/>
+          </group>
+        </else-if>
+        <else-if position="ibid">
+          <text term="ibid" suffix="."/>
+        </else-if>
+        <else-if position="subsequent">
+          <group delimiter=" ">
+            <text macro="author-short"/>
+            <group prefix="(" suffix=")" delimiter=" ">
+              <text term="cited"/>
+              <group delimiter="&#160;">
+                <text term="note" form="short"/>
+                <text variable="first-reference-note-number"/>
+              </group>
+            </group>
+            <text macro="locator"/>
+          </group>
+        </else-if>
+        <else>
+          <text macro="author" suffix=". "/>
+          <text macro="title"/>
+          <text macro="publisher" prefix=". "/>
+          <text macro="locator"/>
+        </else>
+      </choose>
+    </layout>
+  </citation>
+</style>