From b8e3380f80da15b1e384ff56f992baac3fd7f3ee Mon Sep 17 00:00:00 2001
From: Oleg Grenrus <oleg.grenrus@iki.fi>
Date: Tue, 24 May 2016 16:19:46 +0300
Subject: UnfelpfulSpan line number omitted

Kind of resolves https://github.com/haskell/haddock/issues/508
---
 haddock-api/src/Haddock/Backends/Xhtml/Utils.hs | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

(limited to 'haddock-api')

diff --git a/haddock-api/src/Haddock/Backends/Xhtml/Utils.hs b/haddock-api/src/Haddock/Backends/Xhtml/Utils.hs
index 1d49807d..391bb50c 100644
--- a/haddock-api/src/Haddock/Backends/Xhtml/Utils.hs
+++ b/haddock-api/src/Haddock/Backends/Xhtml/Utils.hs
@@ -75,8 +75,7 @@ spliceURL' maybe_file maybe_mod maybe_name maybe_loc = run
       case span_ of
       RealSrcSpan span__ ->
         show $ srcSpanStartLine span__
-      UnhelpfulSpan _ ->
-        error "spliceURL UnhelpfulSpan"
+      UnhelpfulSpan _ -> ""
 
   run "" = ""
   run ('%':'M':rest) = mdl  ++ run rest
-- 
cgit v1.2.3


From 7c60df10642d90d7205cb9c4296903b8de094029 Mon Sep 17 00:00:00 2001
From: Oleg Grenrus <oleg.grenrus@iki.fi>
Date: Tue, 24 May 2016 16:53:35 +0300
Subject: Change Hyperlinked lexer to know about DataKinds ticks

---
 haddock-api/src/Haddock/Backends/Hyperlinker/Parser.hs | 12 +++++++++++-
 haddock-api/src/Haddock/Backends/Hyperlinker/Types.hs  |  3 +++
 2 files changed, 14 insertions(+), 1 deletion(-)

(limited to 'haddock-api')

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
-- 
cgit v1.2.3