diff options
Diffstat (limited to 'src/Hakyll/Web/CompressCss.hs')
| -rw-r--r-- | src/Hakyll/Web/CompressCss.hs | 19 |
1 files changed, 11 insertions, 8 deletions
diff --git a/src/Hakyll/Web/CompressCss.hs b/src/Hakyll/Web/CompressCss.hs index a032b10..21f3087 100644 --- a/src/Hakyll/Web/CompressCss.hs +++ b/src/Hakyll/Web/CompressCss.hs @@ -37,13 +37,12 @@ compressSeparators [] = [] compressSeparators str | isPrefixOf "\"" str = head str : retainConstants compressSeparators "\"" (drop 1 str) | isPrefixOf "'" str = head str : retainConstants compressSeparators "'" (drop 1 str) - | stripFirst = compressSeparators (drop 1 str) + | stripFirst = compressSeparators (drop 1 str) | stripSecond = compressSeparators (head str : (drop 2 str)) - | otherwise = head str : compressSeparators (drop 1 str) + | otherwise = head str : compressSeparators (drop 1 str) where - prefix p = isPrefixOf p str - stripFirst = or $ map prefix [" ", " {", " }", ";;", ";}"] - stripSecond = or $ map prefix ["{ ", "} ", "; "] + stripFirst = or $ map (isOfPrefix str) [" ", " {", " }", ";;", ";}"] + stripSecond = or $ map (isOfPrefix str) ["{ ", "} ", "; "] -------------------------------------------------------------------------------- -- | Compresses all whitespace. @@ -56,9 +55,8 @@ compressWhitespace str | replaceTwo = compressWhitespace (' ' : (drop 2 str)) | otherwise = head str : compressWhitespace (drop 1 str) where - prefix p = isPrefixOf p str - replaceOne = or $ map prefix ["\t", "\n", "\r"] - replaceTwo = or $ map prefix [" \t", " \n", " \r", " "] + replaceOne = or $ map (isOfPrefix str) ["\t", "\n", "\r"] + replaceTwo = or $ map (isOfPrefix str) [" \t", " \n", " \r", " "] -------------------------------------------------------------------------------- -- | Function that strips CSS comments away. @@ -82,3 +80,8 @@ retainConstants f delim str | null str = [] | isPrefixOf delim str = head str : f (drop 1 str) | otherwise = head str : retainConstants f delim (drop 1 str) + +-------------------------------------------------------------------------------- +-- | Helper function to determine whether a string is a substring. +isOfPrefix :: String -> String -> Bool +isOfPrefix = flip isPrefixOf |