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|
{-# LANGUAGE OverloadedStrings #-}
{-# LANGUAGE NoImplicitPrelude #-}
{- |
Module : Text.Pandoc.Writers.Jira
Copyright : © 2010-2019 Albert Krewinkel, John MacFarlane
License : GNU GPL, version 2 or above
Maintainer : Albert Krewinkel <tarleb+pandoc@moltkeplatz.de>
Stability : alpha
Portability : portable
Conversion of 'Pandoc' documents to Jira markup.
JIRA:
<https://jira.atlassian.com/secure/WikiRendererHelpAction.jspa?section=all>
-}
module Text.Pandoc.Writers.Jira ( writeJira ) where
import Prelude
import Control.Monad.State.Strict
import Data.Char (toLower)
import Data.Foldable (find)
import Data.Text (Text, pack)
import Text.Pandoc.Class (PandocMonad, report)
import Text.Pandoc.Definition
import Text.Pandoc.Logging (LogMessage (BlockNotRendered, InlineNotRendered))
import Text.Pandoc.Options (WriterOptions (writerTemplate))
import Text.Pandoc.Shared (blocksToInlines, linesToPara)
import Text.Pandoc.Templates (renderTemplate')
import Text.Pandoc.Writers.Math (texMathToInlines)
import Text.Pandoc.Writers.Shared (metaToJSON, defField)
import qualified Data.Text as T
data WriterState = WriterState
{ stNotes :: [Text] -- Footnotes
, stListLevel :: Text -- String at beginning of list items, e.g. "**"
}
-- | Initial writer state
startState :: WriterState
startState = WriterState
{ stNotes = []
, stListLevel = ""
}
type JiraWriter = StateT WriterState
-- | Convert Pandoc to Jira.
writeJira :: PandocMonad m => WriterOptions -> Pandoc -> m Text
writeJira opts document =
evalStateT (pandocToJira opts document) startState
-- | Return Jira representation of document.
pandocToJira :: PandocMonad m
=> WriterOptions -> Pandoc -> JiraWriter m Text
pandocToJira opts (Pandoc meta blocks) = do
metadata <- metaToJSON opts (blockListToJira opts)
(inlineListToJira opts) meta
body <- blockListToJira opts blocks
notes <- gets $ T.intercalate "\n" . reverse . stNotes
let main = body <> if T.null notes then "" else "\n\n" <> notes
let context = defField "body" main metadata
case writerTemplate opts of
Nothing -> return main
Just tpl -> renderTemplate' tpl context
-- | Escape one character as needed for Jira.
escapeCharForJira :: Char -> Text
escapeCharForJira c = case c of
'&' -> "&"
'<' -> "<"
'>' -> ">"
'"' -> """
'*' -> "*"
'_' -> "_"
'@' -> "@"
'+' -> "+"
'-' -> "‐"
'|' -> "|"
'{' -> "\\{"
'\x2014' -> " -- "
'\x2013' -> " - "
'\x2019' -> "'"
'\x2026' -> "..."
_ -> T.singleton c
-- | Escape string as needed for Jira.
escapeStringForJira :: Text -> Text
escapeStringForJira = T.concatMap escapeCharForJira
-- | Create an anchor macro from the given element attributes.
anchor :: Attr -> Text
anchor (ident,_,_) =
if ident == ""
then ""
else "{anchor:" <> pack ident <> "}"
-- | Append a newline character unless we are in a list.
appendNewlineUnlessInList :: PandocMonad m
=> Text
-> JiraWriter m Text
appendNewlineUnlessInList t = do
listLevel <- gets stListLevel
return (if T.null listLevel then t <> "\n" else t)
-- | Convert Pandoc block element to Jira.
blockToJira :: PandocMonad m
=> WriterOptions -- ^ Options
-> Block -- ^ Block element
-> JiraWriter m Text
blockToJira _ Null = return ""
blockToJira opts (Div attr bs) =
(anchor attr <>) <$> blockListToJira opts bs
blockToJira opts (Plain inlines) =
inlineListToJira opts inlines
blockToJira opts (Para inlines) = do
contents <- inlineListToJira opts inlines
appendNewlineUnlessInList contents
blockToJira opts (LineBlock lns) =
blockToJira opts $ linesToPara lns
blockToJira _ b@(RawBlock f str) =
if f == Format "jira"
then return (pack str)
else "" <$ report (BlockNotRendered b)
blockToJira _ HorizontalRule = return "----\n"
blockToJira opts (Header level attr inlines) = do
contents <- inlineListToJira opts inlines
let prefix = "h" <> pack (show level) <> ". "
return $ prefix <> anchor attr <> contents <> "\n"
blockToJira _ (CodeBlock attr@(_,classes,_) str) = do
let lang = find (\c -> map toLower c `elem` knownLanguages) classes
let start = case lang of
Nothing -> "{code}"
Just l -> "{code:" <> pack l <> "}"
let anchorMacro = anchor attr
appendNewlineUnlessInList . T.intercalate "\n" $
(if anchorMacro == "" then id else (anchorMacro :))
[start, escapeStringForJira (pack str), "{code}"]
blockToJira opts (BlockQuote [p@(Para _)]) = do
contents <- blockToJira opts p
appendNewlineUnlessInList ("bq. " <> contents)
blockToJira opts (BlockQuote blocks) = do
contents <- blockListToJira opts blocks
appendNewlineUnlessInList . T.intercalate "\n" $
[ "{quote}", contents, "{quote}"]
blockToJira opts (Table _caption _aligns _widths headers rows) = do
headerCells <- mapM blocksToCell headers
bodyRows <- mapM (mapM blocksToCell) rows
let tblHead = headerCellsToRow headerCells
let tblBody = map cellsToRow bodyRows
return $ if all null headers
then T.unlines tblBody
else T.unlines (tblHead : tblBody)
where
blocksToCell :: PandocMonad m => [Block] -> JiraWriter m Text
blocksToCell = inlineListToJira opts . blocksToInlines
cellsToRow :: [Text] -> Text
cellsToRow cells = "|" <> T.intercalate "|" cells <> "|"
headerCellsToRow :: [Text] -> Text
headerCellsToRow cells = "||" <> T.intercalate "||" cells <> "||"
blockToJira opts (BulletList items) =
listWithMarker opts items '*'
blockToJira opts (OrderedList _listAttr items) =
listWithMarker opts items '#'
blockToJira opts (DefinitionList items) =
blockToJira opts (BulletList (map defToBulletItem items))
where
defToBulletItem :: ([Inline], [[Block]]) -> [Block]
defToBulletItem (inlns, defs) =
let term = Plain [Strong inlns]
blks = mconcat defs
in term : blks
-- Auxiliary functions for lists:
-- | Create a list using the given character as bullet item marker.
listWithMarker :: PandocMonad m
=> WriterOptions
-> [[Block]]
-> Char
-> JiraWriter m Text
listWithMarker opts items marker = do
modify $ \s -> s { stListLevel = stListLevel s `T.snoc` marker }
contents <- mapM (listItemToJira opts) items
modify $ \s -> s { stListLevel = T.init (stListLevel s) }
appendNewlineUnlessInList $ T.intercalate "\n" contents
-- | Convert bullet or ordered list item (list of blocks) to Jira.
listItemToJira :: PandocMonad m
=> WriterOptions
-> [Block]
-> JiraWriter m Text
listItemToJira opts items = do
contents <- blockListToJira opts items
marker <- gets stListLevel
return $ marker <> " " <> contents
-- | Convert list of Pandoc block elements to Jira.
blockListToJira :: PandocMonad m
=> WriterOptions -- ^ Options
-> [Block] -- ^ List of block elements
-> JiraWriter m Text
blockListToJira opts blocks =
T.intercalate "\n" <$> mapM (blockToJira opts) blocks
-- | Convert list of Pandoc inline elements to Jira.
inlineListToJira :: PandocMonad m
=> WriterOptions
-> [Inline]
-> JiraWriter m Text
inlineListToJira opts lst =
T.concat <$> mapM (inlineToJira opts) lst
-- | Convert Pandoc inline element to Jira.
inlineToJira :: PandocMonad m
=> WriterOptions
-> Inline
-> JiraWriter m Text
inlineToJira opts (Span attr lst) =
(anchor attr <>) <$> inlineListToJira opts lst
inlineToJira opts (Emph lst) = do
contents <- inlineListToJira opts lst
return $ "_" <> contents <> "_"
inlineToJira opts (Strong lst) = do
contents <- inlineListToJira opts lst
return $ "*" <> contents <> "*"
inlineToJira opts (Strikeout lst) = do
contents <- inlineListToJira opts lst
return $ "-" <> contents <> "-"
inlineToJira opts (Superscript lst) = do
contents <- inlineListToJira opts lst
return $ "{^" <> contents <> "^}"
inlineToJira opts (Subscript lst) = do
contents <- inlineListToJira opts lst
return $ "{~" <> contents <> "~}"
inlineToJira opts (SmallCaps lst) = inlineListToJira opts lst
inlineToJira opts (Quoted SingleQuote lst) = do
contents <- inlineListToJira opts lst
return $ "'" <> contents <> "'"
inlineToJira opts (Quoted DoubleQuote lst) = do
contents <- inlineListToJira opts lst
return $ "\"" <> contents <> "\""
inlineToJira opts (Cite _ lst) = inlineListToJira opts lst
inlineToJira _ (Code attr str) =
return (anchor attr <> "{{" <> escapeStringForJira (pack str) <> "}}")
inlineToJira _ (Str str) = return $ escapeStringForJira (pack str)
inlineToJira opts (Math InlineMath str) =
lift (texMathToInlines InlineMath str) >>= inlineListToJira opts
inlineToJira opts (Math DisplayMath str) = do
mathInlines <- lift (texMathToInlines DisplayMath str)
contents <- inlineListToJira opts mathInlines
return $ "\\\\" <> contents <> "\\\\"
inlineToJira _opts il@(RawInline f str) =
if f == Format "jira"
then return (pack str)
else "" <$ report (InlineNotRendered il)
inlineToJira _ LineBreak = return "\n"
inlineToJira _ SoftBreak = return " "
inlineToJira _ Space = return " "
inlineToJira opts (Link _attr txt (src, _title)) = do
linkText <- inlineListToJira opts txt
return $ T.concat
[ "["
, if null txt then "" else linkText <> "|"
, pack src
, "]"
]
inlineToJira _opts (Image attr _alt (src, _title)) =
return . T.concat $ [anchor attr, "!", pack src, "!"]
inlineToJira opts (Note contents) = do
curNotes <- gets stNotes
let newnum = length curNotes + 1
contents' <- blockListToJira opts contents
let thisnote = "[" <> pack (show newnum) <> "] " <> contents' <> "\n"
modify $ \s -> s { stNotes = thisnote : curNotes }
return $ "[" <> pack (show newnum) <> "]"
-- | Language codes recognized by jira
knownLanguages :: [String]
knownLanguages =
[ "actionscript", "ada", "applescript", "bash", "c", "c#", "c++"
, "css", "erlang", "go", "groovy", "haskell", "html", "javascript"
, "json", "lua", "nyan", "objc", "perl", "php", "python", "r", "ruby"
, "scala", "sql", "swift", "visualbasic", "xml", "yaml"
]
|