Cleaned up Text.Pandoc. Added lots of documentation,

including an example program.


git-svn-id: https://pandoc.googlecode.com/svn/trunk@691 788f1e2b-df1e-0410-8736-df70ead52e1b

src/Text/Pandoc.hs

@@ -25,8 +25,25 @@ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
    Stability   : alpha 
    Portability : portable
 
-This helper module exports the basic writers, readers, and definitions
-from the Pandoc libraries.
+This helper module exports the main writers, readers, and data
+structure definitions from the Pandoc libraries.
+
+A typical application will chain together a reader and a writer
+to convert strings from one format to another.  For example, the
+following simple program will act as a filter converting markdown
+fragments to reStructuredText, using reference-style links instead of
+inline links:
+
+> module Main where
+> import Text.Pandoc
+> 
+> markdownToRST :: String -> String
+> markdownToRST = encodeUTF8 .
+>         (writeRST defaultWriterOptions {writerReferenceLinks = True}) .
+>         (readMarkdown defaultParserState) .  decodeUTF8
+> 
+> main = interact markdownToRST
+
 -}
 
 module Text.Pandoc
@@ -41,6 +58,11 @@ module Text.Pandoc
                -- * Parser state used in readers
                , ParserState (..)
                , defaultParserState
+               , ParserContext (..)
+               , QuoteContext (..)
+               , KeyTable
+               , NoteTable
+               , HeaderType (..)
                -- * Writers: converting /from/ Pandoc format
                , writeMarkdown
                , writeRST
@@ -48,6 +70,7 @@ module Text.Pandoc
                , writeHtml
                , writeHtmlString
                , writeS5
+               , writeS5String
                , writeDocbook
                , writeMan
                , writeRTF
@@ -55,9 +78,10 @@ module Text.Pandoc
                -- * Writer options used in writers 
                , WriterOptions (..)
                , defaultWriterOptions
-               -- * UTF-8 encoding and decoding
-               , encodeUTF8
-               , decodeUTF8
+               -- * Default headers for various output formats
+               , module Text.Pandoc.Writers.DefaultHeaders
+               -- * Functions for converting to and from UTF-8
+               , module Text.Pandoc.UTF8
              ) where
 
 import Text.Pandoc.Definition
@@ -73,6 +97,7 @@ import Text.Pandoc.Writers.S5
 import Text.Pandoc.Writers.Docbook
 import Text.Pandoc.Writers.Man
 import Text.Pandoc.Writers.RTF 
+import Text.Pandoc.Writers.DefaultHeaders
 import Text.Pandoc.UTF8
 import Text.Pandoc.Shared