Enhanced Pandoc's support for rST roles.

rST parser now supports:
    - All built-in rST roles
    - New role definition
    - Role inheritance

Issues/TODO:
    - Silently ignores illegal fields on roles
    - Silently drops class annotations for roles
    - Only supports :format: fields with a single format for :raw: roles,
      requires a change to Text.Pandoc.Definition.Format to support multiple
      formats.
    - Allows direct use of :raw: role, rST only allows indirect (i.e.,
      inherited use of :raw:).

1 files changed, 2 insertions, 0 deletions

diff --git a/src/Text/Pandoc/Parsing.hs b/src/Text/Pandoc/Parsing.hs
index 2f21e1253..0713f4a96 100644
--- a/src/Text/Pandoc/Parsing.hs
+++ b/src/Text/Pandoc/Parsing.hs
@@ -853,6 +853,7 @@ data ParserState = ParserState
       stateHasChapters     :: Bool,          -- ^ True if \chapter encountered
       stateMacros          :: [Macro],       -- ^ List of macros defined so far
       stateRstDefaultRole  :: String,        -- ^ Current rST default interpreted text role
+      stateRstCustomRoles  :: M.Map String (String, Maybe String, Attr -> (String, Attr)), -- ^ Current rST custom text roles
       stateWarnings        :: [String]       -- ^ Warnings generated by the parser
     }
 
@@ -915,6 +916,7 @@ defaultParserState =
                   stateHasChapters     = False,
                   stateMacros          = [],
                   stateRstDefaultRole  = "title-reference",
+                  stateRstCustomRoles  = M.empty,
                   stateWarnings        = []}
 
 getOption :: (ReaderOptions -> a) -> Parser s ParserState a