Text.Pandoc.Parsing: Export all Parsec functions used in pandoc code.

No other module directly imports Parsec.  This will make it easier
to change the parsing backend in the future, if we want to.

src/Text/Pandoc/Biblio.hs

@@ -38,7 +38,7 @@ import qualified Text.CSL as CSL ( Cite(..) )
 import Text.Pandoc.Definition
 import Text.Pandoc.Generic
 import Text.Pandoc.Shared (stringify)
-import Text.Parsec
+import Text.Pandoc.Parsing
 import Control.Monad
 
 -- | Process a 'Pandoc' document by adding citations formatted

src/Text/Pandoc/Parsing.hs

@@ -73,13 +73,64 @@ module Text.Pandoc.Parsing ( (>>~),
                              lookupKeySrc,
                              smartPunctuation,
                              macro,
-                             applyMacros' )
+                             applyMacros',
+                             -- * Re-exports from Text.Pandoc.Parsec
+                             Parsec,
+                             runParser,
+                             parse,
+                             anyToken,
+                             getInput,
+                             setInput,
+                             unexpected,
+                             char,
+                             letter,
+                             digit,
+                             alphaNum,
+                             skipMany,
+                             skipMany1,
+                             spaces,
+                             space,
+                             anyChar,
+                             satisfy,
+                             newline,
+                             string,
+                             count,
+                             eof,
+                             noneOf,
+                             oneOf,
+                             lookAhead,
+                             notFollowedBy,
+                             many,
+                             many1,
+                             manyTill,
+                             (<|>),
+                             (<?>),
+                             choice,
+                             try,
+                             sepBy1,
+                             sepBy,
+                             sepEndBy,
+                             endBy1,
+                             option,
+                             optional,
+                             optionMaybe,
+                             getState,
+                             setState,
+                             updateState,
+                             getPosition,
+                             setPosition,
+                             sourceColumn,
+                             sourceLine,
+                             newPos,
+                             token
+                             )
 where
 
 import Text.Pandoc.Definition
 import Text.Pandoc.Generic
 import qualified Text.Pandoc.UTF8 as UTF8 (putStrLn)
 import Text.Parsec
+import Text.Parsec.Pos (newPos)
 import Data.Char ( toLower, toUpper, ord, isAscii, isAlphaNum, isDigit, isPunctuation )
 import Data.List ( intercalate, transpose )
 import Network.URI ( parseURI, URI (..), isAllowedInURI )

src/Text/Pandoc/Readers/HTML.hs

@@ -36,8 +36,6 @@ module Text.Pandoc.Readers.HTML ( readHtml
                                 , isCommentTag
                                 ) where
 
-import Text.Parsec
-import Text.Parsec.Pos
 import Text.HTML.TagSoup
 import Text.HTML.TagSoup.Match
 import Text.Pandoc.Definition

src/Text/Pandoc/Readers/LaTeX.hs

@@ -33,10 +33,9 @@ module Text.Pandoc.Readers.LaTeX ( readLaTeX,
                                    handleIncludes
                                  ) where
 
-import Text.Parsec hiding ((<|>), space, many, optional)
 import Text.Pandoc.Definition
 import Text.Pandoc.Shared
-import Text.Pandoc.Parsing
+import Text.Pandoc.Parsing hiding ((<|>), many, optional, space)
 import qualified Text.Pandoc.UTF8 as UTF8
 import Data.Char ( chr, ord )
 import Control.Monad

src/Text/Pandoc/Readers/Markdown.hs

@@ -43,7 +43,6 @@ import Text.Pandoc.Readers.LaTeX ( rawLaTeXInline, rawLaTeXBlock )
 import Text.Pandoc.Readers.HTML ( htmlTag, htmlInBalanced, isInlineTag, isBlockTag,
                                   isTextTag, isCommentTag )
 import Text.Pandoc.XML ( fromEntities )
-import Text.Parsec
 import Control.Monad (when, liftM, guard, mzero)
 import Text.HTML.TagSoup
 import Text.HTML.TagSoup.Match (tagOpen)

src/Text/Pandoc/Readers/RST.hs

@@ -33,7 +33,6 @@ module Text.Pandoc.Readers.RST (
 import Text.Pandoc.Definition
 import Text.Pandoc.Shared
 import Text.Pandoc.Parsing
-import Text.Parsec
 import Control.Monad ( when, liftM, guard, mzero )
 import Data.List ( findIndex, intercalate, transpose, sort, deleteFirstsBy )
 import qualified Data.Map as M

src/Text/Pandoc/Readers/Textile.hs

@@ -60,7 +60,6 @@ import Text.Pandoc.Shared
 import Text.Pandoc.Parsing
 import Text.Pandoc.Readers.HTML ( htmlTag, isInlineTag, isBlockTag )
 import Text.Pandoc.Readers.LaTeX ( rawLaTeXInline, rawLaTeXBlock )
-import Text.Parsec
 import Text.HTML.TagSoup.Match
 import Data.Char ( digitToInt, isUpper )
 import Control.Monad ( guard, liftM )

src/Text/Pandoc/Templates.hs

@@ -68,7 +68,7 @@ module Text.Pandoc.Templates ( renderTemplate
                              , TemplateTarget
                              , getDefaultTemplate ) where
 
-import Text.Parsec
+import Text.Pandoc.Parsing
 import Control.Monad (liftM, when, forM, mzero)
 import System.FilePath
 import Data.List (intercalate, intersperse)

src/Text/Pandoc/Writers/AsciiDoc.hs

@@ -40,8 +40,7 @@ module Text.Pandoc.Writers.AsciiDoc (writeAsciiDoc) where
 import Text.Pandoc.Definition
 import Text.Pandoc.Templates (renderTemplate)
 import Text.Pandoc.Shared
-import Text.Pandoc.Parsing hiding (blankline)
+import Text.Pandoc.Parsing hiding (blankline, space)
-import Text.Parsec ( Parsec, runParser )
 import Data.List ( isPrefixOf, intersperse, intercalate )
 import Text.Pandoc.Pretty
 import Control.Monad.State

src/Text/Pandoc/Writers/Markdown.hs

@@ -35,8 +35,7 @@ import Text.Pandoc.Definition
 import Text.Pandoc.Generic
 import Text.Pandoc.Templates (renderTemplate)
 import Text.Pandoc.Shared
-import Text.Pandoc.Parsing hiding (blankline)
+import Text.Pandoc.Parsing hiding (blankline, char, space)
-import Text.Parsec ( Parsec, runParser )
 import Data.List ( group, isPrefixOf, find, intersperse, transpose )
 import Text.Pandoc.Pretty
 import Control.Monad.State