diff options
Diffstat (limited to 'src/Text/Pandoc')
-rw-r--r-- | src/Text/Pandoc/Shared.hs | 18 |
1 files changed, 13 insertions, 5 deletions
diff --git a/src/Text/Pandoc/Shared.hs b/src/Text/Pandoc/Shared.hs index 3292b32f4..95cbdc8b8 100644 --- a/src/Text/Pandoc/Shared.hs +++ b/src/Text/Pandoc/Shared.hs @@ -153,12 +153,20 @@ splitTextBy isSep t in first : splitTextBy isSep (T.dropWhile isSep rest) splitTextByIndices :: [Int] -> T.Text -> [T.Text] -splitTextByIndices ns = splitTextByRelIndices (zipWith (-) ns (0:ns)) +splitTextByIndices ns = splitTextByRelIndices (zipWith (-) ns (0:ns)) . T.unpack where - splitTextByRelIndices [] t = [t] - splitTextByRelIndices (x:xs) t = - let (first, rest) = T.splitAt x t - in first : splitTextByRelIndices xs rest + splitTextByRelIndices [] cs = [T.pack cs] + splitTextByRelIndices (x:xs) cs = + let (first, rest) = splitAt' x cs + in T.pack first : splitTextByRelIndices xs rest + +-- Note: don't replace this with T.splitAt, which is not sensitive +-- to character widths! +splitAt' :: Int -> [Char] -> ([Char],[Char]) +splitAt' _ [] = ([],[]) +splitAt' n xs | n <= 0 = ([],xs) +splitAt' n (x:xs) = (x:ys,zs) + where (ys,zs) = splitAt' (n - charWidth x) xs ordNub :: (Ord a) => [a] -> [a] ordNub l = go Set.empty l |