pandoc-citeproc-preamble proof of concept

LICENSE

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+Copyright (c) Sean Whitton, 2015
+
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+
+    * Redistributions of source code must retain the above copyright
+      notice, this list of conditions and the following disclaimer.
+
+    * Redistributions in binary form must reproduce the above
+      copyright notice, this list of conditions and the following
+      disclaimer in the documentation and/or other materials provided
+      with the distribution.
+
+    * Neither the name of Your name here nor the names of other
+      contributors may be used to endorse or promote products derived
+      from this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

Setup.hs

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+import Distribution.Simple
+main = defaultMain

pandoc-citeproc-preamble.cabal

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+name:                pandoc-citeproc-preamble
+version:             0.1.0.0
+synopsis:            Initial project template from stack
+description:         Please see README.md
+homepage:            https://github.com/spwhitton/pandoc-citeproc-preamble
+license:             BSD3
+license-file:        LICENSE
+author:              Sean Whitton
+maintainer:          [email protected]
+category:            Text
+build-type:          Simple
+cabal-version:       >=1.10
+
+executable pandoc-citeproc-preamble
+  hs-source-dirs:      src
+  main-is:             pandoc-citeproc-preamble.hs
+  build-depends:       base
+                     , pandoc-types
+  default-language:    Haskell2010
+
+source-repository head
+  type:     git
+  location: https://github.com/spwhitton/pandoc-citeproc-preamble

src/pandoc-citeproc-preamble.hs

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+import           Text.Pandoc.JSON
+
+preamble = [ RawBlock (Format "latex") "\\section*{References}"
+           , Para [ RawInline (Format "tex") "\\setlength{\\parindent}{-0.2in}"
+                  , Space
+                  , RawInline (Format "tex") "\\setlength{\\leftskip}{0.2in}"
+                  , Space
+                  , RawInline (Format "tex") "\\setlength{\\parskip}{8pt}"
+                  , Space
+                  , RawInline (Format "tex") "\\vspace*{-0.2in}"
+                  , Space
+                  , RawInline (Format "tex") "\\noindent"
+                  ]
+           ]
+
+insertPreamble :: [Block] -> [Block]
+insertPreamble = foldr step []
+  where
+    step refs@(Div (_, ["references"], _) _) xs = preamble ++ refs : xs
+    step x xs = x:xs
+
+main = toJSONFilter preamble
+  where
+    preamble (Pandoc meta blocks) = Pandoc meta (insertPreamble blocks)

stack.yaml

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+extra-deps: []
+resolver: lts-3.4
+flags: {}
+packages:
+- '.'