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-rw-r--r--src/Text/Pandoc/Readers/DocBook.hs11
1 files changed, 7 insertions, 4 deletions
diff --git a/src/Text/Pandoc/Readers/DocBook.hs b/src/Text/Pandoc/Readers/DocBook.hs
index fc29988d5..56cb16b20 100644
--- a/src/Text/Pandoc/Readers/DocBook.hs
+++ b/src/Text/Pandoc/Readers/DocBook.hs
@@ -12,6 +12,7 @@ import Data.Char (isSpace)
import Control.Monad.State
import Control.Applicative ((<$>))
import Data.List (intersperse)
+import Data.Maybe (fromMaybe)
{-
@@ -683,7 +684,7 @@ parseBlock (Elem e) =
"lowerroman" -> LowerRoman
"upperroman" -> UpperRoman
_ -> Decimal
- let start = maybe 1 id $
+ let start = fromMaybe 1 $
(attrValue "override" <$> filterElement (named "listitem") e)
>>= safeRead
orderedListWith (start,listStyle,DefaultDelim)
@@ -779,7 +780,7 @@ parseBlock (Elem e) =
caption <- case filterChild isCaption e of
Just t -> getInlines t
Nothing -> return mempty
- let e' = maybe e id $ filterChild (named "tgroup") e
+ let e' = fromMaybe e $ filterChild (named "tgroup") e
let isColspec x = named "colspec" x || named "col" x
let colspecs = case filterChild (named "colgroup") e' of
Just c -> filterChildren isColspec c
@@ -801,12 +802,14 @@ parseBlock (Elem e) =
Just "center" -> AlignCenter
_ -> AlignDefault
let toWidth c = case findAttr (unqual "colwidth") c of
- Just w -> maybe 0 id
+ Just w -> fromMaybe 0
$ safeRead $ '0': filter (\x ->
(x >= '0' && x <= '9')
|| x == '.') w
Nothing -> 0 :: Double
- let numrows = maximum $ map length bodyrows
+ let numrows = case bodyrows of
+ [] -> 0
+ xs -> maximum $ map length xs
let aligns = case colspecs of
[] -> replicate numrows AlignDefault
cs -> map toAlignment cs