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authorSimon Hengel <sol@typeful.net>2012-04-11 07:54:33 +0200
committerSimon Hengel <sol@typeful.net>2012-05-27 08:48:24 +0200
commitb8dcf173c272ebf85bbf2b427f84522e1474d092 (patch)
tree2e23551bf977b7a871c02c977eb9fecffc6233a2 /src/Haddock/Parse.y
parentb19a4bea999c684e092e0ea0feaf02ff8747d2a5 (diff)
Add support for hyperlink labels to parser
Diffstat (limited to 'src/Haddock/Parse.y')
-rw-r--r--src/Haddock/Parse.y11
1 files changed, 10 insertions, 1 deletions
diff --git a/src/Haddock/Parse.y b/src/Haddock/Parse.y
index 0cc783ee..b34b14b9 100644
--- a/src/Haddock/Parse.y
+++ b/src/Haddock/Parse.y
@@ -107,7 +107,7 @@ seq1 :: { Doc RdrName }
elem1 :: { Doc RdrName }
: STRING { DocString $1 }
| '/../' { DocEmphasis (DocString $1) }
- | URL { DocHyperlink (Hyperlink $1 Nothing) }
+ | URL { DocHyperlink (makeHyperlink $1) }
| PIC { DocPic $1 }
| ANAME { DocAName $1 }
| IDENT { DocIdentifier $1 }
@@ -121,6 +121,15 @@ strings :: { String }
happyError :: [LToken] -> Maybe a
happyError toks = Nothing
+-- | Create a `Hyperlink` from given string.
+--
+-- A hyperlink consists of a URL and an optional label. The label is separated
+-- from the url by one or more whitespace characters.
+makeHyperlink :: String -> Hyperlink
+makeHyperlink input = case break isSpace $ strip input of
+ (url, "") -> Hyperlink url Nothing
+ (url, label) -> Hyperlink url (Just . dropWhile isSpace $ label)
+
-- | Create an 'Example', stripping superfluous characters as appropriate
makeExample :: String -> String -> [String] -> Example
makeExample prompt expression result =