-f FORMAT, -r FORMAT, --from=FORMAT, --read=FORMAT Specify input format. FORMAT can be native (native Haskell), json (JSON version of native AST), markdown (pandoc's extended markdown), markdown_strict (original unextended markdown), markdown_phpextra (PHP Markdown Extra extended markdown), markdown_github (github extended markdown), textile (Textile), rst (reStructuredText), html (HTML), doc‐ boo