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authorOleg Grenrus <oleg.grenrus@iki.fi>2016-05-24 16:53:35 +0300
committerOleg Grenrus <oleg.grenrus@iki.fi>2016-05-24 16:53:35 +0300
commit7c60df10642d90d7205cb9c4296903b8de094029 (patch)
treea67371206eaae89f22383b396453eec020b160be /haddock-api/src
parentb8e3380f80da15b1e384ff56f992baac3fd7f3ee (diff)
Change Hyperlinked lexer to know about DataKinds ticks
Diffstat (limited to 'haddock-api/src')
-rw-r--r--haddock-api/src/Haddock/Backends/Hyperlinker/Parser.hs12
-rw-r--r--haddock-api/src/Haddock/Backends/Hyperlinker/Types.hs3
2 files changed, 14 insertions, 1 deletions
diff --git a/haddock-api/src/Haddock/Backends/Hyperlinker/Parser.hs b/haddock-api/src/Haddock/Backends/Hyperlinker/Parser.hs
index e206413e..e4345602 100644
--- a/haddock-api/src/Haddock/Backends/Hyperlinker/Parser.hs
+++ b/haddock-api/src/Haddock/Backends/Hyperlinker/Parser.hs
@@ -31,12 +31,20 @@ chunk str@(c:_)
chunk str
| "--" `isPrefixOf` str = chunk' $ spanToNewline str
| "{-" `isPrefixOf` str = chunk' $ chunkComment 0 str
- | otherwise = case lex str of
+ | otherwise = case lex' str of
(tok:_) -> chunk' tok
[] -> [str]
where
chunk' (c, rest) = c:(chunk rest)
+-- | A bit better lexer then the default, i.e. handles DataKinds quotes
+lex' :: ReadS String
+lex' ('\'' : '\'' : rest) = [("''", rest)]
+lex' str@('\'' : '\\' : _ : '\'' : _) = lex str
+lex' str@('\'' : _ : '\'' : _) = lex str
+lex' ('\'' : rest) = [("'", rest)]
+lex' str = lex str
+
-- | Split input to "first line" string and the rest of it.
--
-- Ideally, this should be done simply with @'break' (== '\n')@. However,
@@ -124,6 +132,8 @@ classify str
| "--" `isPrefixOf` str = TkComment
| "{-#" `isPrefixOf` str = TkPragma
| "{-" `isPrefixOf` str = TkComment
+classify "''" = TkSpecial
+classify "'" = TkSpecial
classify str@(c:_)
| isSpace c = TkSpace
| isDigit c = TkNumber
diff --git a/haddock-api/src/Haddock/Backends/Hyperlinker/Types.hs b/haddock-api/src/Haddock/Backends/Hyperlinker/Types.hs
index 5f4dbc8c..b27ec4d8 100644
--- a/haddock-api/src/Haddock/Backends/Hyperlinker/Types.hs
+++ b/haddock-api/src/Haddock/Backends/Hyperlinker/Types.hs
@@ -12,16 +12,19 @@ data Token = Token
, tkValue :: String
, tkSpan :: Span
}
+ deriving (Show)
data Position = Position
{ posRow :: !Int
, posCol :: !Int
}
+ deriving (Show)
data Span = Span
{ spStart :: Position
, spEnd :: Position
}
+ deriving (Show)
data TokenType
= TkIdentifier