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, 339 insertions, 0 deletions

diff --git a/test/command/ieee.csl b/test/command/ieee.csl
new file mode 100644
index 000000000..0bde51130
--- /dev/null
+++ b/test/command/ieee.csl
@@ -0,0 +1,339 @@
+<?xml version="1.0" encoding="utf-8"?>
+<style xmlns="http://purl.org/net/xbiblio/csl" class="in-text" version="1.0" demote-non-dropping-particle="sort-only">
+  <info>
+    <title>IEEE</title>
+    <id>http://www.zotero.org/styles/ieee</id>
+    <link href="http://www.zotero.org/styles/ieee" rel="self"/>
+    <link href="http://www.ieee.org/documents/style_manual.pdf" rel="documentation"/>
+    <link href="http://www.ieee.org/documents/auinfo07.pdf" rel="documentation"/>
+    <author>
+      <name>Michael Berkowitz</name>
+      <email>mberkowi@gmu.edu</email>
+    </author>
+    <contributor>
+      <name>Julian Onions</name>
+      <email>julian.onions@gmail.com</email>
+    </contributor>
+    <contributor>
+      <name>Rintze Zelle</name>
+      <uri>http://twitter.com/rintzezelle</uri>
+    </contributor>
+    <contributor>
+      <name>Stephen Frank</name>
+      <uri>http://www.zotero.org/sfrank</uri>
+    </contributor>
+    <contributor>
+      <name>Sebastian Karcher</name>
+    </contributor>
+    <category citation-format="numeric"/>
+    <category field="engineering"/>
+    <category field="generic-base"/>
+    <updated>2013-12-17T18:04:02+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>
+  <locale xml:lang="en">
+    <terms>
+      <term name="chapter" form="short">ch.</term>
+      <term name="presented at">presented at the</term>
+      <term name="available at">available</term>
+    </terms>
+  </locale>
+  <!-- Macros -->
+  <macro name="edition">
+    <choose>
+      <if type="bill book chapter graphic legal_case legislation motion_picture paper-conference report song" match="any">
+        <choose>
+          <if is-numeric="edition">
+            <group delimiter=" ">
+              <number variable="edition" form="ordinal"/>
+              <text term="edition" form="short"/>
+            </group>
+          </if>
+          <else>
+            <text variable="edition" text-case="capitalize-first" suffix="."/>
+          </else>
+        </choose>
+      </if>
+    </choose>
+  </macro>
+  <macro name="issued">
+    <choose>
+      <if type="article-journal report" match="any">
+        <date variable="issued">
+          <date-part name="month" form="short" suffix=" "/>
+          <date-part name="year" form="long"/>
+        </date>
+      </if>
+      <else-if type=" bill book chapter graphic legal_case legislation motion_picture paper-conference song thesis" match="any">
+        <date variable="issued">
+          <date-part name="year" form="long"/>
+        </date>
+      </else-if>
+      <else>
+        <date variable="issued">
+          <date-part name="day" form="numeric-leading-zeros" suffix="-"/>
+          <date-part name="month" form="short" suffix="-" strip-periods="true"/>
+          <date-part name="year" form="long"/>
+        </date>
+      </else>
+    </choose>
+  </macro>
+  <macro name="author">
+    <names variable="author">
+      <name initialize-with=". " delimiter=", " and="text"/>
+      <label form="short" prefix=", " text-case="capitalize-first"/>
+      <substitute>
+        <names variable="editor"/>
+        <names variable="translator"/>
+      </substitute>
+    </names>
+  </macro>
+  <macro name="editor">
+    <names variable="editor">
+      <name initialize-with=". " delimiter=", " and="text"/>
+      <label form="short" prefix=", " text-case="capitalize-first"/>
+    </names>
+  </macro>
+  <macro name="locators">
+    <group delimiter=", ">
+      <text macro="edition"/>
+      <group delimiter=" ">
+        <text term="volume" form="short"/>
+        <number variable="volume" form="numeric"/>
+      </group>
+      <group delimiter=" ">
+        <number variable="number-of-volumes" form="numeric"/>
+        <text term="volume" form="short" plural="true"/>
+      </group>
+      <group delimiter=" ">
+        <text term="issue" form="short"/>
+        <number variable="issue" form="numeric"/>
+      </group>
+    </group>
+  </macro>
+  <macro name="title">
+    <choose>
+      <if type="bill book graphic legal_case legislation motion_picture song" match="any">
+        <text variable="title" font-style="italic"/>
+      </if>
+      <else>
+        <text variable="title" quotes="true"/>
+      </else>
+    </choose>
+  </macro>
+  <macro name="publisher">
+    <choose>
+      <if type=" bill book chapter graphic legal_case legislation motion_picture paper-conference song" match="any">
+        <group delimiter=": ">
+          <text variable="publisher-place"/>
+          <text variable="publisher"/>
+        </group>
+      </if>
+      <else>
+        <group delimiter=", ">
+          <text variable="publisher"/>
+          <text variable="publisher-place"/>
+        </group>
+      </else>
+    </choose>
+  </macro>
+  <macro name="event">
+    <choose>
+      <if type="paper-conference speech" match="any">
+        <choose>
+          <!-- Published Conference Paper -->
+          <if variable="container-title">
+            <group delimiter=", ">
+              <group delimiter=" ">
+                <text term="in"/>
+                <text variable="container-title" font-style="italic"/>
+              </group>
+              <text variable="event-place"/>
+            </group>
+          </if>
+          <!-- Unpublished Conference Paper -->
+          <else>
+            <group delimiter=", ">
+              <group delimiter=" ">
+                <text term="presented at"/>
+                <text variable="event"/>
+              </group>
+              <text variable="event-place"/>
+            </group>
+          </else>
+        </choose>
+      </if>
+    </choose>
+  </macro>
+  <macro name="access">
+    <choose>
+      <if type="webpage">
+        <choose>
+          <if variable="URL">
+            <group delimiter=". ">
+              <text term="online" prefix="[" suffix="]" text-case="capitalize-first"/>
+              <group delimiter=": ">
+                <text term="available at" text-case="capitalize-first"/>
+                <text variable="URL"/>
+              </group>
+              <group prefix="[" suffix="]" delimiter=": ">
+                <text term="accessed" text-case="capitalize-first"/>
+                <date variable="accessed">
+                  <date-part name="day" form="numeric-leading-zeros" suffix="-"/>
+                  <date-part name="month" form="short" suffix="-" strip-periods="true"/>
+                  <date-part name="year" form="long"/>
+                </date>
+              </group>
+            </group>
+          </if>
+        </choose>
+      </if>
+    </choose>
+  </macro>
+  <macro name="page">
+    <group>
+      <label variable="page" form="short" suffix=" "/>
+      <text variable="page"/>
+    </group>
+  </macro>
+  <macro name="citation-locator">
+    <group delimiter=" ">
+      <choose>
+        <if locator="page">
+          <label variable="locator" form="short"/>
+        </if>
+        <else>
+          <label variable="locator" form="short" text-case="capitalize-first"/>
+        </else>
+      </choose>
+      <text variable="locator"/>
+    </group>
+  </macro>
+  <!-- Citation -->
+  <citation collapse="citation-number">
+    <sort>
+      <key variable="citation-number"/>
+    </sort>
+    <layout delimiter=", ">
+      <group prefix="[" suffix="]" delimiter=", ">
+        <text variable="citation-number"/>
+        <text macro="citation-locator"/>
+      </group>
+    </layout>
+  </citation>
+  <!-- Bibliography -->
+  <bibliography entry-spacing="0" second-field-align="flush">
+    <layout suffix=".">
+      <!-- Citation Number -->
+      <text variable="citation-number" prefix="[" suffix="]"/>
+      <!-- Author(s) -->
+      <text macro="author" suffix=", "/>
+      <!-- Rest of Citation -->
+      <choose>
+        <!-- Specific Formats -->
+        <if type="article-journal">
+          <group delimiter=", ">
+            <text macro="title"/>
+            <text variable="container-title" font-style="italic" form="short"/>
+            <text macro="locators"/>
+            <text macro="page"/>
+            <text macro="issued"/>
+          </group>
+        </if>
+        <else-if type="paper-conference speech" match="any">
+          <group delimiter=", ">
+            <text macro="title"/>
+            <text macro="event"/>
+            <text macro="issued"/>
+            <text macro="locators"/>
+            <text macro="page"/>
+          </group>
+        </else-if>
+        <else-if type="report">
+          <group delimiter=", ">
+            <text macro="title"/>
+            <text macro="publisher"/>
+            <group delimiter=" ">
+              <text variable="genre"/>
+              <text variable="number"/>
+            </group>
+            <text macro="issued"/>
+          </group>
+        </else-if>
+        <else-if type="thesis">
+          <group delimiter=", ">
+            <text macro="title"/>
+            <text variable="genre"/>
+            <text macro="publisher"/>
+            <text macro="issued"/>
+          </group>
+        </else-if>
+        <else-if type="webpage post-weblog" match="any">
+          <group delimiter=", " suffix=". ">
+            <text macro="title"/>
+            <text variable="container-title" font-style="italic"/>
+            <text macro="issued"/>
+          </group>
+          <text macro="access"/>
+        </else-if>
+        <else-if type="patent">
+          <group delimiter=", ">
+            <text macro="title"/>
+            <text variable="number"/>
+            <text macro="issued"/>
+          </group>
+        </else-if>
+        <!-- Generic/Fallback Formats -->
+        <else-if type="bill book graphic legal_case legislation motion_picture report song" match="any">
+          <group delimiter=", " suffix=". ">
+            <text macro="title"/>
+            <text macro="locators"/>
+          </group>
+          <group delimiter=", ">
+            <text macro="publisher"/>
+            <text macro="issued"/>
+            <text macro="page"/>
+          </group>
+        </else-if>
+        <else-if type="article-magazine article-newspaper broadcast interview manuscript map patent personal_communication song speech thesis webpage" match="any">
+          <group delimiter=", ">
+            <text macro="title"/>
+            <text variable="container-title" font-style="italic"/>
+            <text macro="locators"/>
+            <text macro="publisher"/>
+            <text macro="page"/>
+            <text macro="issued"/>
+          </group>
+        </else-if>
+        <else-if type="chapter paper-conference" match="any">
+          <group delimiter=", " suffix=", ">
+            <text macro="title"/>
+            <group delimiter=" ">
+              <text term="in"/>
+              <text variable="container-title" font-style="italic"/>
+            </group>
+            <text macro="locators"/>
+          </group>
+          <text macro="editor" suffix=" "/>
+          <group delimiter=", ">
+            <text macro="publisher"/>
+            <text macro="issued"/>
+            <text macro="page"/>
+          </group>
+        </else-if>
+        <else>
+          <group delimiter=", " suffix=". ">
+            <text macro="title"/>
+            <text variable="container-title" font-style="italic"/>
+            <text macro="locators"/>
+          </group>
+          <group delimiter=", ">
+            <text macro="publisher"/>
+            <text macro="page"/>
+            <text macro="issued"/>
+          </group>
+        </else>
+      </choose>
+    </layout>
+  </bibliography>
+</style>