Hacking pandoc

Complete pandoc consists of several distinct Haskell packages which you might need to look at:

• jgm/pandoc itself
• jgm/pandoc-templates
• jgm/pandoc-types
• citeproc-hs

To understand the pandoc implementation, besides Haskell

• understand how frontends and backends are joined in pandoc
• make yourself familiar with the Parsec monadic parser combinator library